SPECIFICATION
for the proposed
MECHANICAL BUILDING SERVICE SYSTEMS
to the
MOORLAND CENTRE
EDALE
DERBYSHIRE
in association with
GINO LOMBARDO ASSOCIATES
Building Services Consultants
Client
Consult Projects
Gino Lombardo Associates
Tel No: 0115 969 3399
Tel. No: 01332 342 990
Document Ref glaEMC01
Issue 01 – December 2015
CONTENTS
1.0
Project Particulars
2.0
General Engineering Preliminaries
3.0
Standard Mechanical Engineering Specification
4.0
Particular Mechanical Engineering Specification
SECTION 1.0
PROJECT PARTICULARS
SECTION 1.0
PROJECT PARTICULARS
CONTENTS
Clause
Description
1.1
The Project
1.2
Scope of Works
1.3
The Site
1.4
Design Drawings
1.5
Conditions of Contract
1.6
Parties to the Contract
1.7
Engineering Standards
1.8
Programme of Works
1.9
Site Visit
1.10
Tender Queries
1.11
The CDM Regulations 2015
1.12
Hazardous Substances
1.13
External Site Infrastructure Services
1.14
Energy Efficiency/Carbon footprint Etc.
1.15
Building Construction & The Building Regulations
1.16
Conflict
SECTION 1.0
PROJECT PARTICULARS
1.1
The Project
The Contractor shall be responsible for the design supply, installation and commissioning of the
mechanical building services systems to the Edale Moorland Centre refurbishment and
extension building project as described in this Employer’s Requirements (ER)specification.
The Main Contractor will be responsible for undertaking builders work and other specialist
services installations including the new electrical service installations identified below.
The Contractor will be responsible for liaison with the Main Contractor to ensure effective coordination of the various work packages.
1.2
Scope of Works
This work package comprises the design supply, installation and commissioning of all
mechanical building services systems described in this document.
The contractor shall be a member of the Building & Engineering Association
(B&ES)
formerly the HVCA and shall employ competent persons familiar with the type and nature of
the proposed building services installations. See also section 3.0
All refrigeration systems work pipework shall be undertaken by competent engineers and in
accordance with the F Gas Regulations. The contractor shall be Refcom certificated.
Microgeneration Certification Scheme (MCS) accredited contractors shall undertake all
Renewable Heat Incentive (RHI) heat pump installations under the requirements and
guidelines of Ofgem.
All installations shall comply with requirements of the Local Authority planners, Building
Control and the Building Regulations
A suitably qualified site manager/ supervisor shall be employed to oversee the works and
provide effective support to the design team during the construction phase.
All works shall be installed in accordance with relevant legislation, good engineering practice,
and the technical standards described in this specification document
The Contractor shall include for the following building services systems installations noted below:
Mechanical building services systems

Removal and modification of existing services.

ATW HP space heating services

ATW HP hot water services

Mains cold water & boosted water systems

Mechanical ventilation systems

Comfort cooling

BMS, controls & sundry services

Testing and commissioning.
The Contractor shall allow for the co-ordination and integration of the various work element
packages with the Main Contractor and specialist building services contractors
Specific specialist site work packages include:
Air to Water heat pump ATW Heat Pump services

Evaporator HE &Condenser HP plant.

Compressor & liquid receiver HP plant

Buffer vessel and circulation transfer pump sets

Associated HWS storage vessels

Interfacing controls and sundry equipment

BMS interface

Testing and commissioning
Electrical building services systems








Removal and modification of existing services
Small power systems & Internal lighting
Fire detection/ Intruder detection
Public address, hearing loop services
Door access control & Alarm systems
Data/communication/Telephone cabling & wireways
Mechanical services wiring
Testing and commissioning.
Main Contractor:

Builder’s work in association with building services systems

General construction builder’s work and ground works

All other specialist services
1.3
The Site
The site is located at the Moorland Edale, Edale, Peak District National Park, Derbyshire.
1.4
Design Duty of Care
The Contractor shall be responsible for the design duty of care and shall production of
detailed design drawings, specifications and all other associated information that may be
required to demonstrate compliance to the Regulations, standards and guidance noted in the
ER specifications and all other contract documents.
1.5
Conditions of Contract
General conditions of contract, preliminaries and preambles are detailed under separate
cover and are to be read in conjunction with this specification document.
These are available from the Main Contractor and the Contract Administrator.
1.6
Particular Parties to the Project
1.6.1
The Contract Administrator
Gino Lombardo and Associates
1.6.2
The Architectural Consultant & The CDM Coordinator
Gino Lombardo and Associates
1.6.3
Tel. No: 01332 342 990
The Building Services Engineer
Consult Projects
(Production of the ER specification)
1.6.4
Tel. No: 01332 342 990
Tel. No: 0115 969 3399.
The Contractor
The Contractor shall be the successful mechanical services contractor responsible for the
works described in this document.
The Contractor shall be a sub-contractor to the Main Contractor.
1.7
Engineering Standards
The installations shall be installed in accordance with ER specification sections 2.0, 3.0, 4.0
and room data sheets contained in this document.
1.8
Programme Milestones & Order of Works
The programme milestones and specific order of works are contained under separate cover in
the Contract Administrator’s documentation package.
The centre is to remain operational throughout the duration of works and a phased order of
works involving decanting to and from various sections of the building will be implemented.
1.9
Site Visit
The Contractor shall be responsible for visiting site to carry out a pre-tender survey to
ascertain the conditions under which the work is to be carried out and to review the existing
local built environment.
Special attention is to be given to means of access to the building and obtaining full
particulars of any part or parts of the existing installation that are to be re-used or adapted. No
allowance shall be made for ignorance due to the Contractors neglect in this respect.
The building is a secure facility and all necessary security vetting for approved &
accompanied access shall be arranged via the Main Contractor
All site visits must be by prior arrangement via the Contract Administrator in the first
instance.
1.10
Tender Queries
All queries on contract matters should be directed to the Contract Administrator.
All referred technical queries on technical matters should be addressed to the Building Services
Engineer noted in 1.6 above.
1.11
The Construction (Design and Management) Regulations 2014/2015
The project will require notification under the current CDM Regulations.
Works are to be co-ordinated with the main contract work packages.
A Principal Contractor and a CDM co-ordinator have been appointed for the works
The contractor shall liaise with the Principal Contractor and CDM co-ordinator and provide to
them all necessary risk assessments, method statements and safe systems of work as may
be reasonably requested
The contractor shall be responsible for issuing all necessary information to the Principal
Contractor for inclusion within the Health and Safety File which shall be reviewed by the
project the CDM co-ordinator.
1.12
Hazardous Substances
It is not envisaged that hazardous will be encountered during the works. The contractor shall
undertake relevant risk assessments when undertaking his work.
If the contractor suspects that hazardous substances are present, he must immediately stop
that particular operation and inform the Contract Administrator. The Contract Administrator
will organise the carrying out all necessary testing and removal.
The existing LPHW services may contain water treatment chemicals. Details are available
from the Employer.
An asbestos survey analysis/register is available from the CA
1.13
Existing Site Infrastructure/distribution and ‘As Built’ Services
The existing incoming water services infrastructure will remain unaltered.
The existing LPHW, ventilation services and H&C water services cold water distribution systems
are to be utilised and modified where necessary to service and interface with the new building
refurbishments and extension layouts /arrangements.
The main contractor will be responsible for undertaking site investigations and scans in respect
existing concealed services that may affect the works.
Record drawings and as built technical information is available to the contractor from the
Employer’s H&S files. It is the responsibility of the contractor to determine the accuracy or
otherwise of this information prior to any modifications or extensions to the existing systems.
When removing or modifying existing services the contractor shall undertake relevant risk
assessments and produce method statements for the project CDM Co-ordinator.
The CA & Employer shall be kept in formed of any potential existing services infrastructure
disruptions and the contactor shall plan and co ordinate milestone dates for any building
services interconnections, disconnections and or removals.
1.14
Energy Efficiency / Carbon Footprint / CO² Emission Rate Calculations
The building services systems and building construction are to be designed to achieve the
requirements of Building Regulations part L2A & L2B target CO² emission rate (TER) and the
buildingCO² emission rate (BER) requirements for this type of development.
Building construction/carbon footprint improvements shall be made in accordance with the
architectural consultants specification documents.
Renewable Heat Incentive (RHI) engineering works include a new air to water heat pump
system to replace the current electric HWS installations and to provide new space heat to
specific areas currently unheated.
A specialist will undertake any necessary ISBEM calculations that may be required on behalf of
the CA. The main contractor will be responsible for obtaining the necessary written compliance
approvals & certificates and for the liaison with Building Control.
1.15
Building Construction & The Building Regulations
The building construction elements and finishes are indicated on architectural drawings
available under separate cover. The construction and services installations are to comply with
the current Building Regulations and shall be approved by Building Control.
The Contractor shall review the building fire strategy plans and effectively interface building
services systems to ensure fire compartment integrity is maintained. The building services
installations shall be installed to maintain the acoustic integrity of the elements of building
construction.
The works shall be compliant to the in force Building Regulations and in particular the
supporting ‘The Non–Domestic Building Services Compliance Guide’ NDBSCG document.
including all amendments.
1.16
Conflict
Any contradiction between the specification and drawings must be brought to the attention of
the Contract Administrator during the tender period when a ruling will be given.
A discrepancy between the specification and drawings will not be accepted as a basis for
additional payment after receipt of tenders.
The Contractor shall ensure all plant equipment and building services systems can be
adequately integrated within the building construction elements of structure and are fully
co-ordinated with other specialist building services systems.
SECTION 2.0
GENERAL ENGINEERING PRELIMINARIES
SECTION 2.0
GENERAL ENGINEERING PRELIMINARIES
Clause
Description
2.1
Contract Preliminaries
2.2
Standards of Installation
2.3
Site Visit
2.4
Programme of Works
2.5
Design Team etc Meetings
2.6
Contractor’s Project Team
2.7
Health, Safety and Welfare
2.8
The CDM Regulations
2.9
Protection of the Environment
2.10
Design Calculations
2.11
Design Review Process
2.12
Contract Drawings
2.13
Working Drawings
2.14
"As Fitted" Drawings
2.15
Operating and Maintenance Manuals
2.16
Facilities Maintenance Supplier Liaison
2.17
Schedule of Rates
2.18
Dimensions
2.19
Samples for Approval
2.20
Materials & Protection
2.21
Labelling & identification
2.22
Commissioning and Completion
2.23
Engineering Operational Assets (EOA’s)
2.24
Ease of Maintenance
2.25
Final Inspection and Handover
SECTION 2.0
GENERAL ENGINEERING PRELIMINARIES
2.1
Contract Preliminaries
Particular contract preliminaries are detailed under separate cover along with the general
conditions of contract. The contractor shall read the following general engineering preliminaries
in conjunction with the above documents.
2.2
Standards of Installation
Technical standards and workmanship standards are defined in sections 1.0, 3.0 & 4.0 together
with the room data sheets in appendix A.
The contractor shall be a member of the Building & Engineering Services Association.
(B&ESA) formerly the Heating and Ventilating Contractor's Association (HVCA) and shall
employ competent persons familiar with the type and nature of the proposed building
services installations.
Microgeneration Certification Scheme (MCS) accredited contractors shall undertake all
Renewable Heat Incentive (RHI) installations under the requirements and guidelines of
Ofgem.
All refrigeration pipework shall be undertaken by competent specialist refrigeration
engineers registered with REFCOM and in accordance with the requirements of the F
Gas Regulations.
All installations shall comply with requirements of the Local Authority planners, Building
Control and the Building Regulations
A suitably qualified site manager/ supervisor shall be employed to oversee the works
and to provide effective support to the design team during the construction phase.
The contractor shall employ suitably qualified and experienced operatives to carry
out the works and shall provide comprehensive management and supervision of the works.
All works shall be installed in accordance with relevant legislation, good engineering practice,
and the technical standards described in this specification.
2.3
Site Visit
The contractor shall be deemed to have examined the site, specification, drawings and any
other documents, which form part of the contract or describe the works.
In the case of an existing building, the contractor shall be responsible for visiting site to carry out
a pre-tender survey to ascertain the conditions under which the work is to be carried out, means
of access, requirement for scaffolding building structure and obtaining full particulars of any part
or parts of the existing installation which are to be re-used or adapted and make full allowance
in his cost for all such like factors. No allowance shall be made for ignorance due to the
contractors neglect in this respect.
Where the particular specification refers to quotations from specialists, manufacturers, stockists,
the references are intended for guidance only. The contractor is responsible for ensuring that
the quantities, service or equipment included within his offer satisfies the requirements and
intents of the scheme. Any doubt in the connection must be clarified before costs are
submitted.
2.4
Programme of Works
The contractor shall produce a detailed programme for the works indicating:
-
Activity Reference.
Activity Interfacings.
Commissioning Periods.
Duration of Activity.
Contract Milestones.
Site Resources.
The programme shall be agreed with the Contract Administrator (CA) and co-ordinated within
the main contract programme. The testing and commissioning of engineering services shall
be executed before the completion of the works and the master programme shall take this
into account.
2.5
Design Team, Progress and Site Meetings
Design team, progress and site meetings are to be held as and when required during the precontract and contract stages of the project. These may be planned periodically convened and
or ad hoc meetings. The contractor shall attend all such meetings and make all necessary
arrangements for itself, its personnel, and for any specialist required
2.6
Contractor’s Project Team
The contractor shall provide a project organisational chart indicating key personnel and their
respective duties as may be required to deliver the service. All team members shall be
suitably trained, experienced qualified and competent to perform their respect duty of care.
2.7
Health, Safety and Welfare
The contractor shall comply with all enactments, Regulations and working rules relating to the
safety, health and welfare of workpeople, tenants and the public. The contractor's attention is
drawn to primary codes of practise and Regulations noted in the contract documents and
sections 3.0/4.0 of this specification.
The contractor shall supply the CA with a copy of his Safety Policy Statement prior to the
commencement of the Contract. The contractor shall nominate a person to be responsible for
the implementation of the Health and Safety provisions.
.
2.8
The Construction (Design and Management) Regulations 2014/15
The contractor shall refer to the contact CDM requirements noted under separate cover The
contractor shall undertake relevant contractor’s & designer’s duties/ responsibilities as laid
down in the Construction (Design and Management) Regulations 2014/5.
The contractor shall ensure all contractors and sub-contractors are adequately briefed on
particular potential hazards on the site and on general site safety and welfare. Competent and
qualified persons shall be employed on the site.
The contractor shall obtain safe systems of work and method statements for potentially
hazardous contracting operations and initiate permit to work procedures where appropriate.
The contractor shall provide a project organisational chart indicating key personnel and their
respective duties as may be required to deliver the service. All team members shall be
suitably trained, experienced qualified and competent to perform their respect duty of care.
2.9
Protection of the Environment
The contractor shall undertake the works with due regard for the environment and in particular
The Environmental Protection Act 1990 with amendments. The client and design team
recognise the impact that the work package activities may have on the environment and we are
committed to high standards of environmental care and to continually improving our
environmental performance. The contractor shall aim to improve environmental performance
by:*
Complying with legislation and, if possible, exceeding the minimum legal requirements.
*
Maintaining effective and efficient environmental management systems.
*
Minimising environmental risks and preventing pollution.
*
Reducing the visual impact of operations.
*
Promoting the efficient use of transport in all activities.
*
Preventing, minimising and recycling waste products where appropriate.
The contractor shall recognise that stakeholders have a role to play and aim to:-
2.10
*
Educate and train staff to conduct their activities in an environmentally responsible
manner.
*
Inform suppliers/contractors of the high environmental standards required.
*
Encourage high standards throughout the supply chain.
*
Encourage all stakeholders to use energy and resources efficiently.
Design Calculations and Documentation
The contractor shall prepare and submit upon request of the CA two copies of all design
calculations, working drawings and specifications that may be considered reasonable and
proper to substantiate the contractor's design.
Broad-brush outline design documentation and indicative drawings shall be prepared during the
pre-contract period and presented on request of the CA.
The contractor's proposed design framework and engineering principles shall be tabled and
discussed at the design development and construction stages of the project or as and when
advised by the CA
Upon appointment the contractor shall prepare full detailed design documentation, which shall
be presented upon request no later than four weeks before commencement of the contractor's
site installations.
This documentation shall include complete diagrammatic drawings and detailed design
arrangements of the installations.
The contractor shall expand and/or revise his designs as necessary to reflect the designs of
other disciplines of the design and build contractor's project team, and issue appropriate design
documentation on an on-going basis in full compliance of the CDM Regulations.
The contractor shall include all costs associated with provision of this documentation.
2.11
Contract Drawings
The contractor shall be responsible for submitting copies of all necessary drawings, design
calculations and associated construction information to the building landlord/landlords agent’s
as advised and requested by the CA
Information packages will be required at the feasibility, design development and construction
stages of the project to fully inform the building owner’s /occupiers of the contractor’s proposals.
Arrangements shall indicate the impact of the contractor’s proposals on the building structure
and the interface of the installations with the normal trading operations of the building and
associated site.
It is the responsibility of the contractor to make due allowance for all materials, items of
equipment, necessary to provide a complete finished and functional installations. Installations
shall be fully co-ordination with the building elements of construction and other building services
installations and equipment. The contractor's drawings shall be produced on AutoCad or other
interfacing system
2.12
Working Drawings
The contractor shall on receipt of order prepare production of fully detailed working drawings of
each service to be installed including all-purpose made plant and equipment. These working
drawings must be fully co-ordinated with all other services and the structure.
The contractor shall work in conjunction with other sub-contractors to ensure that all working
drawings are fully co-ordinated. Working drawings shall include details and positions of all
supports and fixings.
The contractor shall ensure that the requirements of other contractors are taken fully into
account prior to any installation commencing.
Working drawings shall be produced in accordance with a programme to suit the overall
programme for the project. Reasonable allowance shall be made for incorporating any
comments made by the CA or his representative.
Work on site should only commence after the client or his representative has reviewed working
drawings and accepted their content.
The contractor's working drawings shall include the following and shall be produced on Auto
Cad 2014 or interfacing system :Co-ordinated Plans, Elevations, Sections
1:50 / 1:100
Co-ordinated Plant Layouts and Sections
1:20
Schematic Diagrams
Builderswork Drawings
NTS
1:50 and 1:20
Manufacturers Drawings of all Plant & Equipment Details
Diagrammatic Arrangements of all Systems
NTS
The contractor will be required to take site dimensions during the preparation of working
drawings and shall be responsible for their accuracy.
The contractor shall carry out setting out of the works on site and any errors arising from
inaccuracies in setting out shall be rectified at the contractor's expense.
The contractor shall be responsible for the accuracy of the drawings. Drawings and technical
information shall be issued on hard copy and on DVD CD formats.
The CA or his representative requires a minimum period of 10 working days to comment on the
working drawings from receipt of the drawings.
2.13
"As Fitted" Drawings
The contractor shall maintain on site, a record of all changes to the design scheme as works
proceed so that "As Fitted" drawings can be produced immediately after the installation has
been completed.
The contractor shall produce the "As Fitted" drawings, which shall be based on the construction
drawings and shall be at least equal in quality and content. The drawings shall include all
relevant information and shall exclude any information that is relevant during tender and
construction. Each drawing shall be clearly labelled "As Fitted Drawing" and shall bear the
contractors title block.
The contractor shall submit one set of "As Fitted" drawings in paper format to the CA for review.
Immediately following this review, the contractor shall forward an electronic set of drawings
copied to disk format.
The contractor's attention is drawn to the requirements of the CDM Regulations and shall
include all relevant information for inclusion in the building Health and Safety File where
appropriate
Drawings shall be produced on Auto Cad or interfacing system and DVD CD format disk copies
together with two hard copies of each drawing shall be handed over to the Employer.
2.14
Operating and Maintenance information
Two hard copy manuals together with two DVD CD format disk copies of the system operating
and maintenance manuals should be issued to the CA at or before hand over. Those in charge
of the premises must be fully informed of the operational procedures necessary for the safe and
proper use of the systems.
The manuals shall include a fully detailed written description of the installation and shall
contain non-technical descriptions together with technical data sections including:

Copies of all test certificates and commissioning sheets.

Specialist manufacturer’s plant / equipment drawings and data sheets.

A tabulated representation of recommended maintenance tasks.

Fully tabulated parts /spares list and manufacturer’s installation manuals.

Schedule of Engineering Operational Assets (EOA’s) information.

Scaled service systems drawings with diagrammatic/schematic layouts.

Simplified operating procedures under both normal and emergency circumstances written
in "laymen's" language.
The manuals shall be bound and titled, contain an index for ease of reference and
prominently display the name and address of the contractor and the Employer together with
emergency telephone numbers.
The contractor shall include an adequate allowance to brief the Employer’s personnel of the
new installations and thereby complete system operating parameters. The brief shall include a
conducted walk around of the site installations
2.15
Building Occupiers’ Manuals and Instruction
The building occupier's manual shall include a fully detailed written description of the operation
of the systems and installation details. The contents shall include non-technical and where
appropriate technical text and shall include :
Copies of all test certificates and commissioning sheets.

Specialist drawings of plant and equipment.

Specifically identified manufacturer’s data sheets.

A tabulated representation of recommended maintenance tasks.

Diagrammatic/schematic drawings.

Simplified operating procedures under both normal and emergency circumstances
written in "laymen's" language.
The Contractor shall include within this tender sum an adequate allowance to brief the end
users personnel upon the new installations and the complete system operating parameters. The
brief is to take the form of a seminar given by the Contractor at the site premises.
2.16
Facilities Maintenance Supplier Liaison
In laying out the works, the contractor shall at all times give proper consideration to the future
maintenance of the plant and shall include for such component parts as are available from the
manufacturer of the equipment or plant to ensure ease of maintenance.
The
contractor's
attention is drawn to the CDM Regulations 2014/5.
The contractor shall at the contract handover stage of the project have a formal meeting with
the end user and their Facilities Maintenance Supplier.
This progress shall overview the project construction installation and the associated life time
operational and maintenance requirements.
2.17
Schedule of Rates
A schedule of rates for the project shall be provided within 14 days of the receipt of an
instruction to proceed. The schedule shall clearly show the following:Item, Quantity, Rate/Quantity, Total Cost.
The rate given shall be inclusive of all on-costs and the total of the schedule prices shall
equate to the contract sum cost. The prices given shall be shall be used for costing variations
to the contract and the evaluation of work for interim payments.
When used for costing variations of a like basis it is deemed that the schedule price given
includes for all contract administration overhead and profit costs and that no additional
charges will be levied.
2.18
Dimensions
Where plant or equipment is to be installed inside or close to building and structures, the
contractor shall take his own dimensions of the buildings or structures for the purpose of
installing any plant and materials. The contractor shall be responsible for the accuracy of such
dimensions.
The contractor shall include for preparing working drawings and undertaking final site
measurements to ensure plant and services can be effectively integrated within the building
structure and co-ordinated with other service installations.
Dimensions written on drawing shall in all instances be taken in preference to those
measured on a drawing to a given scale. Any discrepancies or conflicts shall be notified
before installations commence.
2.19
Samples For Approval
The contractor shall submit for approval, such samples of workmanship, materials or equipment
that the contractor proposes to use in the execution of the Works as e requested by the CA.
Where the samples submitted are not of a sufficiently high standard or are unsuitable for use in
the proposed circumstances, the contractor to shall obtain alternative materials or equipment.
2.20
Materials and Protection
All materials and equipment shall be new.
The contractor must ensure that all specified materials are correctly applied and installed strictly
in accordance with the manufacturer’s advice and requirements.
The contractor shall ensure adequate, safe and suitable storage for all materials and
equipment. All materials shall be adequately supported and stored under cover to prevent
bending, distortion and corrosion.
The contractor shall ensure that the condition of all materials and equipment is maintained
during the course of the contract and that no damage, corrosion, soiling or deterioration of any
kind affects the materials or equipment.
2.21
Labelling of Plant and Equipment
The contractor shall provide all necessary Identification and H&S signage that may be
applicable to his installations and systems. All plant/ equipment shall be complete with:
Manufacturers Identification Labels

Contractor system duty ID (m3/h against PD etc)

Appropriate Health and Safety Signage

Appropriate Plant References

Services Identification to BS 1710.
Safety signage shall conform to the Signs and Signals Regulations 1996.
2.22
Commissioning and Completion
The whole of the service systems shall be set to work, tested & commissioned to the
satisfaction of the CA prior to the handover inspection.
The contractor shall provide attendance to all commissioning carried out by specialist
contractors and shall be responsible for the satisfactory completion of such works. The
contractor shall also provide attendance during the commissioning of any other site works
where he has a contractual involvement.
The commissioned systems shall be demonstrated to the CA or his representative at an
agreed time .Commissioning data and test certificates shall be presented in the project Health
and Safety file documentation package and signed off by the Employer or his representative.
New & clean air filters shall be provided by the contractor to all air plant/systems as part of
commissioning handover process.
Commissioning shall conform to the Building Regulation requirements and the CIBSE codes.
The Contractor shall undertake snagging /defects inspections and prepare a signed check list
confirming that all systems are complete, tested, commissioned and in satisfactory working
order. The contractor shall provide all necessary test certification and commissioning data for
inclusion in the O & M manual
2.23
Engineering Operational Assets (EOA’s) Schedule - As Built information
The contractor shall provide an engineering operational assets (EOA) schedule of
manufacturer’s plant in the form of an agreed plant asset schedule requirements within the ‘as
built’ O/M document package.
The information shall be handed over to CA at the handover stage for issue to the Employer’s
specialist maintenance service providers who will provide maintenance to the new systems.
2.24
Ease of Maintenance
In laying out the works, the Contractor shall at all times give proper consideration to the future
maintenance of the plant and shall include for such component parts as are available from the
manufacturer of the equipment or plant to ensure ease of maintenance.
The Contractor's attention is drawn to the CDM Regulations 2015
2.25
Final Inspection and Handover
The Contract Administrator or his representative will undertake an inspection of the
installations and prepare a list of outstanding and/or remedial works.
The Contractor shall attend to all items noted immediately in order that the installation is
completed to the Contract Administrator’s satisfaction before the handover date.
Upon completion of all outstanding works and/or remedial works the Contractor shall notify
the Contract Administrator that all works are ready for handover.
A final inspection will then be carried out at an agreed date to suit all parties.
The Contract Administrator or his representative will carry out this inspection with the
Contractor in attendance and if the work has been completed to the satisfaction of the
Contract Administrator or his representative a handing over certificate will be issued.
SECTION 3.0
TECHNICAL STANDARDS
AND DESIGN CRITERIA
SECTION 3.0
TECHNICAL STANDARDS
CONTENTS
Clause
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
3.33
3.34
3.35
3.36
3.37
3.38
3.39
3.40
3.41
3.42
SECTION 3.0
Description
Scope of Works
Workmanship and Standard Engineering Specifications
Regulations and Standards
The Building Regulations
Building EPC
Non Domestic Building services Compliance Guide
Commissioning of Services
Health, Safety and Welfare
Fire Engineering Services
Life Time Operation and Design
Space Planning & Co-ordination
Safety Signage
Services System ID
Room Data Sheets
Air Handling Equipment
The F Gas Regulations
Condensate Systems
Mechanical Ventilation Systems
Galvanised Ductwork Systems
Plastic Ductwork Systems
Grilles and Diffusers
External Louvres
Hot & Cold Water Services
LPHW Heating
CW Cooling
Fan Coil Units
Split HP Comfort Cooling Systems.
Valve Regimes
HP Drains
Air Venting & Drainage
Pipework Systems
Soil & Vent and Waste Systems
Sanitary Ware
Thermal Insulation
Protection Painting and Cleaning
Support Systems
Works Tests
Control Systems
Commissioning
Electrical Services
Builder’s Work
3.10
3.0
TECHNICAL STANDARDS
3.1
Scope of Works
The contractor shall include for the supply, delivery, erection, setting to work and
commissioning of the mechanical building services and associated systems as described in
sections 1.0-4.0 of this specification document.
3.2
Workmanship and Standard Engineering Specifications
The contractor shall supply and install systems/equipment in accordance with good practice,
manufacturer’s requirements and the following standard engineering specifications. Where no
specification design, performance or installation standards are quoted the contractor shall
with these specifications :


CIBSE Technical Memoranda, Guidance and commissioning specifications
BS&E Specification and Codes of Practices including:
HM Government Non domestic Building services Compliance Guide
Including:
TR6
TR11
TR17/18
TR30
RAC70
RAC80
DW143
DW144
DW/TM2
3.3
Site pressure testing of pipework
Use of plastic pipework
Ventilation systems /Ventilation hygiene
Heat Pump installations
Commercial and light commercial industrial ventilation
Unit air conditioning
Practical guide to air testing.
Specification for sheet metal ductwork
Internal Cleanliness of new ductwork systems
Regulations and Standards
The contractor’s installations shall comply with all current relevant Statutory Instruments /
Regulations and in particular with the following guidance:
CIBSE Guides and current Technical Memoranda including:-
A
B1
B2
B3
B4
B5
E
G
TM13
TM 31
TM 39









3.4
Environmental Design
Heating
Ventilation and air conditioning
Ductwork
Refrigeration and heat rejection
Noise and vibration control
Fire engineering
Public Health Engineering
Minimising the risk of Legionnaires disease.
Building log book toolkit
Building energy metering
The Gas Safety Regulations 1998.
The Water Regulations and the WSWF Regulations 1999
The F Gas Regulations
The Environmental Protection Act.
The IEE Regs. for the Electrical Equipment of Buildings, BS.7671
Health & Safety Commission ACOP Legionellosis Disease.
Building Control & the Fire Officer's Recommendations and Requirements.
All relevant current British Standards and Codes of Practice.
The current Building Regulations including all amendments.
The Building Regulations.
The contractor shall install all systems in accordance with the Building Regulations
including Part L and specifically the ‘Non –Domestic Building Services Compliance Guide’
published by the HM Government.
The contractor’s installations and manufacturer’s plant and equipment shall be designed
to achieve the requirements of the Building Regulations part L2A target CO² emission rate
(TER) and actual CO² emission rate (BER) requirements for this type of retail
development.
The contractor’s attention is draw to the following key elements of design and he shall
make appropriate provisions and analysis during the design development, construction
and commissioning stages of the project.
3.5
Controls.
Energy meters.
Electric Heating.
Gas Heating.
Comfort Cooling.
controls
Provide effective controls for energy efficiency
Provision of effective automatic metering
Suitable energy efficient plant and effective controls
Suitable energy efficient plant and effective controls
Suitable energy efficient plant, passive design and effective
Air distribution.
Fan power.
Air Leakage.
Insulation.
Fan power, inverter control, energy effective plant & controls
Provision of fan power criteria and variable speed drives.
HVCA DW143/ 144 specification and standards.
Appropriate insulation of pipework & ductwork systems
Passive design.
Passive design.
Passive design.
Non AC areas and limiting solar gains.
Non AC areas and thermal comfort
AC areas and TER/BER
Commissioning.
CIBSE.
O/M manuals.
CIBSE.
TER/BER.
Set to work and effectively commissions for energy efficiency
Commissioning Code M
Provision of as built information/operational instructions
Provision of a building log-book.
Design calculation data
Energy Performance Certification
The contractor shall liaise with the design team and provide fixed building services
information to enable the energy performance of the building to be established in
accordance with the requirements of the Building Regulations parts L2 and the Building
Control body (BCB)
The Building Emission Rate (BER) and the Target Emission Rate (TER) shall be
recorded in the as built information/log book .A building energy performance certificate
(EPC) shall be provided by others
3.6
The Non –Domestic Building Services Compliance Guide. (NDBSCG)
The contractor shall supply and install all systems in minimum compliance with the in force
Building Regulations and in particular the supporting NDBSCG document .
The contractor shall refer to section 4.0. The contractor shall proactively supply & install
energy efficient building service plant and systems in consultation with the design team to
target low carbon footprint construction and life time operational parameters.
3.7
Commissioning of Services
The contractor shall set to work and commission the building services systems in accordance
with the CIBSE and BSRIA commissioning codes listed below.

CIBSE Code A
Air distribution systems

CIBSE Code C
Automatic controls

CIBSE Code R
Refrigeration systems

CIBSE Code M
Commissioning Management

BSRIA
Commissioning of air systems
All commissioning is to take place within the contract period and adequate time allowances
shall be included with the overall construction programme for this critical activity. The
Employer or his representative may witness commissioning tests.
The contractor or his sub-contractor shall provide all necessary labour, supervision, certified
instruments, accessories, fuel and materials to carry out all site tests and trial runs prior to
commissioning.
All air ductwork pressure tests shall be carried out before the application of thermal insulation
in accordance with the requirements of the BRs and DW143/144.
Air leakage tests, volume/velocity flow tests, temperature and pressure tests shall be
undertaken to a pre-programmed schedule and in a logical manner.
Gas services shall be purged, vented & commissioned in compliance with the Gas
Regulations. Refrigeration services shall be commissioned in compliance with the FGas
Regulations.
Commissioning shall be undertaken by manufacturer’s specialist commissioning engineers or
by the contractor’s qualified and competent personnel.
Specific guidance on commissioning is given in the technical sections.
3.8
Health, Safety and Welfare
The contractor shall comply with all enactments, regulations and working rules relating to the
safety, health and welfare of workpeople, tenants and the public.
In particular the Contractor's attention is drawn to the following:-
3.9

The Health and Safety at Work etc Act 1974.

The Control of Substances Hazardous to Health Regulations (COSHH).

The Working at Height Regulations 2004

Workplace (Health Safety and Welfare) Regulations 1992.

Management of Health and Safety at Work ACOP.

Personal Protective Equipment at Work Regulations 1992.

Provision and Use of Work Equipment Regulations 1992.

The C D M Regulations 2014/5.

The inforce IEE Regulations. BS.7671.
The contractor shall supply the Employer with a copy of his Safety Policy Statement prior to the
commencement of the Contract. The contractor shall nominate a person to be responsible for
the implementation of the Health and Safety provisions whilst carrying out work within the
Contract.
Fire Engineering Services
The contractor shall include for fire stopping all engineering services to maintain fire
prevention integrity and observe the store fire compartmentation strategy.
The contractor shall determine the particular precise store requirements during the
design development stage and include for co-ordinating his systems with the overall
particular store fire prevention strategy.
The contractor shall allow for appropriate fire dampers at ceiling void cavity fire barriers
to facilitate particular zoned separation areas in accordance with the Building Control/fire
strategy requirements. The individual fire compartmentation locations will be indicated on
the fire strategy plans and the contractor shall ensure that installations do not
compromise the fire prevention integrity of the building. All fire dampers installations
shall be complete with ductwork access doors and identification labelling. Ductwork fire
dampers shall be complete with access doors of appropriate size and ID.
All construction standards and compartment zoning shall be in accordance with the Building
Regulation and all particular Local Authority and Employer’s requirements.
3.10
Acoustic Engineering
The contractor shall be note all internal NR levels detailed in the room data sheets. The
contractor shall design and select appropriate external/internal plant and equipment
suitable for the local built environment, any specific Local Authority /Building Control
requirements and the specification noise level criteria requirements.
The contractor shall select low speed low noise equipment and provide plant/ductwork
sound attenuating systems where necessary. Where low speed selection cannot wholly
ensure compliance external acoustic cladding & screening systems shall be supplied
and installed by the Main Contractor to the contractor’s detailed requirements should
these be agreed to be necessary.
Particular attention shall be given to the roof deck plant and systems due to the close
proximity of the surrounding buildings and facilities. Care and attention shall be given to
the location of central plant ductwork and pipe services transmitting fluids and air, and to
fixing details and locations, to avoid transfer/outbreak of noise.
Anti-vibration mountings and fixings shall be used on all rotating equipment including line
fans. Absorbent matting shall be incorporated on all air handling plant/localised ductwork
and condenser base frames between the plant and the resulting detail.
The contractor shall provide sound level frequency spectrums for all plant as may be
requested by the main contractor. The contractor shall ensure all systems are fit for their
purpose and do not cause nuisance to building occupants and the surrounding built
environment.
All dynamic rotating machinery shall be isolated from the building structure by vibration
isolators and vibration isolation materials that shall be purpose designed and selected to suit
the machinery. Anti- vibration control shall include the following:
3.11

Central AHU fan(s) AV mountings/ base frame isolation matting

FCU void pack heat recovery AV mountings and flexible duct connections.

FCU void pack base frame isolation matting

Line air fan AV mountings and flexible duct connections.

Line attenuators base isolation matting.
The contractor shall also refer to section 4.0.
Lifetime Maintenance & Operation and System Design.
The contractor shall design and install environmental systems with due regard for the
efficient and effect lifetime maintenance and operation of the particular systems.
Systems shall not pose any H&S hazard and shall be installed at appropriate levels and in
acceptable configurations and arrangements. The contractor shall note the following key
engineering criteria.
3.12

Ductwork systems shall incorporate removable access doors for coils/actuators/back
draught shutters and line VCD’s/FD’s etc. These shall be stiffened and insulated.

AHU plant, silencers, filter boxes and inline mechanical ventilation fans shall
incorporate supports, independent of connecting ductwork systems

Condensate systems and support drop rods shall be suitably installed
so as not to restrict or hinder access or cause H&S hazards.

Manufacturer’s /Building Regulation space planning requirements shall be observed.

Systems, plant and equipment shall be designed so as not to cause acoustic nuisance to
the local built environment or discomfort to the building occupants.

Filter/coil withdrawal and inspection zones shall be appropriately designed and access
demonstrated. Filters shall not be installed in food storage areas or the staff room.

Roof top/indoor plant shall be suitably laid out and condense pipework routed clear of
maintenance area working zones with discharges clear of AHU access panels.

Internal line fans, actuators and AHU shall not be installed at heights greater than
3.2m unless specifically agreed.
Space Planning and Service Co-ordination
The building services installations shall be effectively co-ordinated and integrated within
the building structure. The contractor shall include for adequate planning, co-ordinating his
designs to ensure effective interfacing with the building construction.
The contractor shall provide detailed setting out plans in consultation with the Main
contractor indicating mechanical services provisions and space allocation for electrical
services (by others) prior to design and fabrication of services.
The contractor shall ensure that all plant can be accommodated within the allocated areas
indicated on the tender plans and that adequate structural requirements are provided.
Building services design solutions shall be developed to maximise retail sales space and
minimise erosion of usable area by plant rooms and distribution systems.
Plant design, arrangements and location shall be selected to:
Minimise the cost of services distribution.

Maintain good access for plant maintenance/replacement.

Achieve acoustic specifications and integrity

Give the best visual and environmental effect.

Maintain the store fire prevention strategy.
3.13
Safety Signage
The contractor shall include for all relevant safety signage requirements for his installation
systems and equipment. Manufacturer’s signage shall be incorporated where applicable.
Signage shall conform to the Health and Safety (Safety Signs and Signals) Regulations 1996
and with be provided by the contractor.
Safety Signage shall be affixed to all plant room access/escape doors and to accessible
compartments/riser cupboards containing services, plant and equipment. Gas safety signage
shall conform to the Gas Regulations
3.14
Services ID Labelling, Identification & Signage.
All services and plant and equipment shall be labelled and identified.
Services shall be complete with services designation and colour coding to BS1710.
Air handling plant, filters, fans, heat exchangers, condensers, cassette units, motorised
dampers, fire dampers and gas meter(s) shall be complete with approved permanent rigid
plastic ID labelling.
Air handling plant is also to be complete with design performance labelling as noted in section 4.0.
In store situations were common roof decks contain plant of varying ownership/demise the
contractor shall in addition install ownership labelling.
All individual refrigeration and condense pipelines shall be labelled with reference to the
indoor and outdoor interlinking plant and equipment. ID shall be provided in all cellular spaces
and at bundles of services.
General plant labelling shall not be less than 50x50mm (See also section 4.0) and refrigeration
pipelines shall be tagged with coded discs secured around the insulation diameter.
The contractor shall provide all relevant safety signage requirements for his systems and
equipment. Manufacturer’s signage shall also be incorporated where applicable. Signage shall
conform to the Health and Safety (Safety Signs and Signals) Regulations 1996. Safety
Signage shall be affixed to all plant room access/escape doors and to accessible
compartments/riser cupboards containing services, plant and equipment. Gas safety signage
shall conform to the Gas Regulations. All necessary trip, acoustic and headroom hazard
signage shall be supplied and fixed by the contractor.
The concealed locations of plant and equipment including the following shall be identified with
colour coded suspended ceiling disk markers as noted. Fire dampers access, VCD’s, line
fans, filters, heat recovery units, ductwork access and silencers etc.

Line VCD’s
Blue circular 10mmØ and legend

FD access
Red circular 10mmØ and legend

Silencers/filters
Black circular 10mmØ and legend

Air plant etc
Black circular 10mmØ and legend
Ductwork systems shall be identified with triangular colour coded directional arrows
All fresh, exhaust, supply, return, re-circulation, and extract air ducts shall be labelled.
The contractor shall provide refrigeration pipeline system identification and reference on all
individual refrigerant lines. Cross-references to internal cassette/cooling coils and external
heat rejection condenser plant shall be incorporated on the individual pipelines. Similarly all
condense pipelines shall be identified.
The contractor shall provide commissioning setting markings on all air system VCD’s /OBD’s.
These shall be in black indelible ink. Extract air valves shall be identified with a legend/tag
with the number of full turns from the 100% closed position. (i.e. 2.25t )
3.15
Room Data Sheets
The contractor shall refer to the data sheets contained in appendix A of this
specification. The data sheets contain room specific requirements and design criteria.
3.16
Air Handling Equipment
General
The contractor shall install air-handling plant as indicated in the technical sections. Where closed
looped refrigeration systems are provided, these shall incorporate a ‘green’ refrigerant. Where
direct gas fired units are specified, flue gas exhaust systems shall conform to the Clean Air Act.
Units shall be installed in accordance with the Gas Regulations 1998 and manufacturer’s
recommendations.
Units shall be fit for their intended use and shall be off suitable construction.
Non-corrosive units with coil protection shall be installed in all situations
Free cooling facilities with exhaust fans shall be provided in all situations
The contractor shall refer to the technical specification section 4.00.
Units shall be complete with automatic control and generally be complete with:(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
Fresh Air Inlet/ Mixing Box/ Discharge/Exhaust Air Sections.
Free Cooling Facility including powered exhaust fan
Heat Exchanger / Coil
Cooling Coil/Condenser sections.
Staged Compressors Controls.
Filter Sections with Condition Indicators.
Supply Air Fan/ Interfacing Extract Air Fan where appropriate.
Anti-vibration mountings
Silencer Sections/Line Attenuators as appropriate
Manufacturer’s Base Frame
Cooling/Heating/Air volume flow/external resistance ID plate/ System ID.
Manufacturer’s ID plate.
Weather Proof Enclosure in External Applications
Construction
Each unit will have an insulated frame and heavy-duty corner pieces. Panels shall be
manufactured having double skin steel with insulation to form a rigid non-vibrating panel. Each
panel shall have a galvanised steel inner face and a primed and "Plastisol" finished outer
surface.
Panels shall be secured by means of key operated clips. Demountable, air sealed panels with
handles shall be provided to give access to filters, fans, damper assemblies and each side of
heater/cooling batteries.
Each unit shall be complete with all supporting steelwork runners and bearers etc., and shall be
adequately braced to prevent drumming.
Where AHU's are split down to facilitate installation the method chosen for fastening together the
sections shall prevent leakage between sections and be resistant to vibration. Units shall be sited
on a builder’s work steel base frame/curb.
10mm Tico sound absorbent matting shall be installed between the unit and the frame.
All component sections i.e. coils, filters etc, will be enclosed in the same form of casing, with
external finish as described above. Connections to cooling coils will be external to the casing and
the apertures around the pipes sealed with suitable rings and cover plates.
Fan Sections
Units shall be provided with low noise high efficiency centrifugal fans with variable speed inverter
control. Fan curves and sound power level criteria are to be provided for each unit. Fan
power/efficiencies shall comply to the requirements of the No-Domestic Building Services
Compliance Guide (NDBSCG)
All fans and motors are to be mounted on common frames with correctly designed and selected
anti vibration mountings. These will be of the spring type with a minimum efficiency of 90%.
Approval must be obtained for rubber in shear or any other types of anti-vibration mountings.
All fan scrolls are to be connected to the unit casing with flexible connections to prevent the
transmission of vibration. A spare matched set of belts will be provided for each fan drive.
Mounting systems will allow for adjustment of drive belt tension.
All fan inlets and the vee belt drive will be fitted with a galvanised wire mesh guard. The drive
guard will be split and flanged on the drive centre line and will have access holes and covers
over fan and motor shafts to enable tachometer readings to be taken.
Full fan sound power data is to be provided for each unit.
Filter Sections
Panel filters shall be of appropriate rating for the particular store application and be of proprietary
manufacture. Filters shall not include any glass fibre material.
Filters shall be efficient to G4 (EU4 Panel filters) and F6 (EU6 Bag filters).
Each bank of filters will have fitted across each an inclined tube manometer of suitable scale
upon which shall be marked 'Clean' and 'Dirty' pressure drops.
Filters will be arranged to facilitate access for cleaning, removal and refitting. Purpose made
seals will be provided to minimise air leakage around filters and the effectiveness of the seals will
not be impaired by periodic removal and refitting of the filter cells. Filter removal arrangement
will be rear withdrawal.
Mixing Boxes
Mixing boxes will have doubled skinned enclosure panels to the same specification as the
remainder of the plant. Dampers will be fitted to the mixing box to provide the facility of bringing
fresh air and re-circulated air. Dampers shall have parallel blades to ensure complete mixing of
the air. Control rods will be extended through the unit casing to allow actuators to be fitted.
Free Cooling/Exhaust Fans
All units shall be complete with free cooling airflow facilities including exhaust air fans.
The percentage air volume flow ‘free cooling’ ability of the units shall not be less than the
requirements noted in section 4.0.
Acoustic Design and Treatment
Units shall be of suitable acoustic specification for their particular application.
Where applicable the contractor shall provide low noise units complete with:(1)
Low revolution fans/Acoustic silencer sections.
(2)
Acoustic insulation of fan sections.
(3)
External line silencer attenuation.
Mountings and Supports
The AHU(s) shall be complete with manufacturer’s steel base frame and anti- vibration fixings.
The unit(s) shall be mounted on an adequate structural base, which will be constructed by the
contractor. The contractor shall install absorbent matting between the manufacturer’s base frame
and the structural base.
3.17
The F Gas Regulations and Refrigeration Pipework.
The contractor shall supply and install refrigeration systems in accordance with the FGas
Regulations and shall employ competent and qualified site personnel.
The contractor shall provide an ‘as-built’ log book/manual of all particular store
refrigeration systems. The manual shall contain the following information for each system
which shall be attached to the corresponding EOA plant information




System cooling capacities and refrigerant type & charge quantity in kg.
As installed locations of refrigeration pipelines
Condenser and coil locations and arrangements
Manufacturer’s inspections/maintenance requirements
The contractor shall provide pipeline system identification and reference on all individual
refrigerant lines. Cross-references to internal cassette/cooling coils and external heat
rejection condenser plant shall be incorporated on the individual pipelines. All refrigeration
pipelines shall be insulated and shall be complete with individual system ID and a
propriety galvanised cable tray containment/supports system.
3.18
All plant room sections at risk of impact damage shall be protected on both faces by a
robust containment system. All external refrigeration shall be protected from vermin/bird
attack by use of a galvanised containment system sandwiching
.
Condensate Collection Systems
The contractor shall install condensate collection systems for the following plant.



Internal heat pump plant and terminal units.
External/internal condenser heat rejection/AHU plant.
Heat recovery heat exchangers.
Internal heat pumps, condenser plant & Heat recovery heat exchangers
Condense pipelines shall be installed in copper systems and the. discharge systems
shall connect to the building drainage waste system at an appropriate location. All
systems shall be installed with appropriate falls and system ID.
All collection trays shall be complete with a bottom outlet with suitably engineered falls.
A line trap water seal shall be provided on the discharge line adjacent the plant
connection. The trap(s) shall be capable of inspection, fill and removal.
The condense discharge systems shall be connected to the building drainage system at
an appropriate location and shall incorporate a line trap water seal. The trap shall be
capable of inspection, fill and removal.
Condense pipeline systems shall be of appropriate diameter and not less than 25Ø in
internal diameter.
Terminal units shall be provided with, where necessary, interconnecting condensate
lifting pumps. Condense lifting pump hose line(s) shall be kept to a minimum in travel
and shall discharge into the rigid trapped discharge systems. Braided hose pipelines
shall be provided on all pumped condensate applications to the diameters recommended
by the equipment supplier.
External condenser plant
The contractor shall route all condense discharge away from roof top AHU plant and
equipment. Systems shall be routed to terminate at low roof levels or at roof gully
locations away from all access panels and AHU equipment.
Remote AHU condenser plant shall be sat on raised plinth(s) to avoid steel frames sitting
in flooded condense water. Collection trays/rigid discharge pipelines shall be provided in
sensitive areas such as goods in /loading bays and plant rooms. Discharges shall be
routed to agreed locations.
Heat pump condenser plant shall be sited in appropriate locations. Where condense
discharge may cause nuisance or H&S risk due to freezing collection trays/rigid direct
connection discharge pipelines shall be provided.
Where banks of condenser units are installed the contractor shall provide a condense
collection tray complete with bottom exit outlet and appropriate falls to prevent stagnant
water accumulation. Systems shall be suitable supported and engineered
Discharges shall be routed to agreed locations. All systems shall be installed with
appropriate falls and system ID. Condense mains shall be identified with as trip hazard
signage where appropriate.
3.19
Mechanical Air Ventilation Systems
The Contractor shall supply and install mechanical ventilation systems as noted in section 4.0
and in the room data sheets. Ductwork systems shall be manufactured and installed to
DW144. The ductwork systems shall be so configured as to avoid cross talk between spaces.
Attenuation shall be provided as necessary to achieve the room NR levels noted in the data
sheets.
The contractor shall provide all grilles and diffusers as may be necessary to provide efficient
and proper ventilation. Fire dampers shall be installed in ducted systems where appropriate,
and attenuators shall be installed in the ductwork where necessary.
Air exhaust/discharge terminations shall be carefully co-ordinated to discharge in appropriate
locations and clear of all fresh air/supply air inlets. Terminal locations shall be carefully coordinated to sympathetically compliment and interface with the building structure and external
brickwork/window fenestration details.
External louvres/terminals shall discharge in appropriate positions clear of down-pipes, boiler
flue terminals (supply and extract) and other obstructions.
Ventilation rates and system selections shall be in accordance with the technical
specifications noted in section 4.0 and on the room data sheets.
Systems shall be complete with the following:
Suitably selected supply diffusers/return grilles with OBD’s/line VCD’s. See 3.22

Appropriately sized ductwork systems. See 3.20

Appropriately sized energy efficient heat recovery air handling plant.

Localised small room exhaust/extract fans.

Attenuation as necessary.

Building intake/exhaust louvres sized at a maximum free area face velocity of 2m/s.

Appropriate fire compartmentation.

Appropriate cleaning and maintenance provisions.
3.20
Galvanised Ductwork Systems
Design
The contractor shall supply and install ductwork systems in-accordance with CIBSE
guide B3 ‘ductwork’ and HVCA DW144 ‘specification for sheet metal ductwork’.
Ductwork pressure drops shall be minimised where possible and systems shall be designed
to comply with the fan air volume/fan power energy requirements of the Building Regulations
part L2. Ductwork velocities shall conform to the maximum recommended limits identified in
the CIBSE guide B3 tables 3.1 and 3.3. Low velocity system (Class A) requirements are:
All Areas
NR35
6m/s main duct
5.5m/s branch
3m/s run outs
Lower velocities may be necessary in sensitive applications or in complicated ductwork
configurations. Ductwork dimensional ratios shall not normally exceed 3:1.
The contractor shall include for a design allowance air leakage rate capacity appropriate to
the system static operating pressure.
Systems shall be designed to attain the thermal comfort design conditions identified in the
technical sections and shall satisfy the following criteria.






Appropriate noise generation to attain relevant NR levels
Compliance with Building Regulations fan power requirements
Non-excessive system pressure drops.
Avoidance of turbulent airflow.
Effective air distribution/collection.
Effective space planning/building integration.
System Distribution
The contractor shall include for interfacing the ductwork systems with the proposed building
shape and form. Ductwork arrangements shall be as symmetrical as possible to aid regulation
and provide uniformity of air change rate.
Systems shall be appropriately zoned to cater for perimeter and core internal area heating
and cooling loads. Uniform environmental conditions shall be achieved within the relevant
spaces by appropriate zone design and positioning of air terminals and control sensors.
Ductwork systems shall be complete with compartment fire dampers to maintain the fire
integrity of the building structure. The fire rating of dampers shall be no less than the
respective compartment construction time duration rating. Fire dampers shall be out of air
stream fusible link type unless otherwise directed by Building Control and shall comply with
the requirements of the Local Authority.
In line volume control dampers (VCD’s) shall be provided and located to effectively control
and balance the system. The contractor shall also refer to section 4.0 particular requirements
Cleaning and Access Provisions
The contractor shall provide adequate access doors within the ductwork system for
maintenance, cleaning and access to plant and equipment such as volume control dampers
and fire dampers. The contractor shall also refer to section 4.0.
Locations and sizes of access doors shall be in accordance with the guidance given in the
BS&E publication TR17 ‘ Cleanliness of Ventilation Systems’
The contractor shall provide ductwork access doors of appropriate sections and design
to safely access systems and facilitate PP maintenance.
Access doors provisions for cleaning & inspection shall include the following:
(1) = One side. (2) = Two sides

Fire dampers. (1)

Deep core/line VCD’s not accessible by removal of local 1000mm terminal flexes.(1/2)

AHU finned heat exchanger coiling coils/heating coils. (2)

Motorised dampers/actuators that cannot be readily removed from the air stream. (2)

Turning vane/equalising ductwork sections (2)

Air plenum boxes at lourve connections (1)

Complex ductwork configurations. (2)

Adjacent silencer installations. (2)

End of run (branch & main) stockroom header ductwork sections. (1)

Internal AHU plant where site installations restrict manufacturer’s access. (1)
All access doors shall be of a sandwich-insulated construction and be complete with a
safety chain permanently attaching the door cover to the ductwork section. Access door
ductwork sections shall be suitable stiffened to prevent drumming and shall be of the
minimum sizes noted in TR/17 tables1-4.
The contractor shall refer to TR/17 tables1-4 for guidance notes on the number, size and
location of access panels (doors) for particular applications.
The contractor shall allow adequate provision of flange plate sections to facility the
blanking off and pressure testing of the ductwork systems to comply with the
commissioning requirements of the Building Regulations part F & L2A/L2B.
The contractor shall prepare a method statement of proposed ductwork, maintenance and
cleaning procedures indicating recommended methods that are to be adopted to satisfactorily
maintain optimum design conditions and to ensure that systems do not become
contaminated.
Ductwork support systems
The contractor shall install adequate ductwork systems in accordance with DW 144.
Insulated ductwork shall incorporate support systems that do not compress or distort
insulation and that maintain the insulation vapour barrier.
Ductwork support drop rod treads shall be of an appropriate length and shall not pose ay H&S
hazard.
Ductwork systems shall be independently supported from interconnecting AHU’s, fans,
silencers, partition walls and roof systems to facilitate independent plant/ductwork section
removal.
3.21
Plastic Ductwork Systems
Where plastic ductwork systems are installed, the contractor shall provide materials to the
following specifications:(1)
Ductwork greater than 150mm internal equivalent diameter:
DW151 Grey UPVC.
(2)
Ductwork less than or equal to 150mm internal equivalent diameter:
Unplastisized PVC pipe (Soil Pipe Specification).
3.22
Grilles and Diffusers
The contractor shall design and install air diffusers/grilles in suitable pattern arrangements
to provide effective and uniform air distribution to the occupied zones.
Designs shall conform to the manufacturer’s technical guidance requirements and good
practice criteria. Selections shall be made with due allowance for appropriate discharge
velocities, air throw pattern distribution, acoustic performance and system PD resistance.
The contractor shall provide suitable air terminal device arrangements to ensure:




Low noise face velocity
No circulation/mixing of intakes/exhaust air.
Effective air transfer.
Energy efficient fan power/pressure drop characteristics.
All units (supply/return/extract) shall be complete with OBD/VCD air volume dampers.
Commissioning settings shall be clearly marked with concealed indelible ink markings. All
diffusers/grilles shall incorporate ductwork plenum spigot boxes with unrestricted side/top
entry duct section and flexible connections.
Direct ductwork/flexible ductwork connections to terminals shall not be permitted.
Diffuser/grille flexible ductwork connections shall be complete with quick release clamps
adjacent line dampers to facilitate access for cleaning and maintenance.
Flexible duct connections shall be insulated and shall not exceed 900mm in length.
Acoustic flexible duct connections shall be provided to all occupied staff accommodation.
Large section sales floor return air plenum boxes shall be complete with individual flexible
spigot connections or large rigid plenum box connection with access doors for cleaning
and maintenance.
Finished ductwork/diffuser/grille installations shall be free of visible ink markings.
Spare damper keys shall be handed over to the CA
Air terminal devices shall be located in accessible areas to facilitate ease of maintenance.
Blades shall be trimmed and cleaned at the commissioning stage prior to hand over.
All diffusers, grilles and air valves in sales floor/staff areas etc shall be colour coded white.
The contractor shall also refer to the requirements of section 4.0.
3.23
External Louvres
The contractor shall design and select external air louvres in suitable pattern
arrangements to provide effective intake/exhaust air distribution.
Systems shall be colour coded as necessary to the CA requirements
Large section plant room louvre systems shall be supplied and fitted by the main
contractor to the contractor’s requirements. Designs shall conform to the manufacturer’s
technical guidance requirements and good practice criteria. Selections shall be made with
due allowance for appropriate intake/exhaust velocities, acoustic performance and system
PD resistance. Louvres shall be provided with the following.






Individual active plenum box connections with access doors for cleaning.
Appropriate exhaust/intake section design to prevent air short circuiting/re circulation.
Insect screen and bird guard protection.
Free face area velocity of no greater than 2m/s. Appropriate acoustic performance
Effective stiffening of plenum ductwork sections to prevent drumming.
Effective design to prevent no rainwater entrainment in air streams/pooling on faces.

Appropriate fresh air intake siting to avoid input of local environment stale/polluted air.
Fresh air and exhaust air external weather louvers shall be appropriately sited so not to cause
short-circuiting of air. Active louvre sections shall be complete with individual airtight plenum box
connections and separated from opposing direction air streams and other individual air systems.
Non-active sections shall be blanked off with removal plating systems. Acoustic louvres systems
shall be provided were necessary in sensitive locations and the contractor shall advise the main
contractor in this respect.
3.24
Hot and Cold Water Services
The Contractor shall install hot and cold water services systems of the type specified in
section 4.0.Distribution services shall generally be installed within floor and ceiling voids or
concealed areas. Pressure reducing valves and/or pressure booster sets shall be installed as
appropriate to meet the individual appliance water pressure requirements.
Cold and hot water services at individual combined outlets shall be suitably balanced in
pressure. Double check valves shall be installed as necessary to comply with Water
Regulations. The systems shall comply with good engineering practice and the Water
Regulations. Individual ballofix in-line valves shall be installed adjacent all sanitary ware
fittings. Common isolation gate valves shall be installed at branch connections to groups of
sanitary fittings when distributing off main distribution runs and at termination of the index run.
Adequate valves shall be provided for sectionalised, control, isolation and draining down of
the installation.
All hot, cold, tank and mains water supply systems shall be designed and installed to the
requirements/guidance of EN8558 and chlorinated prior to completion. Each system shall
then be flushed out and charged with fresh clean water. Hot and cold water services shall,
after pre-commissioning cleaning and hydraulic testing, be sterilised by the application of
sodium hypochlorite in accordance with BS.6700, and The Water Regulations.
3.25
LPHW Space Heating Systems
General
When noted in section 4.0, the Contractor shall provide low pressure hot water space heating
installations. The system shall be complete with air to water heat pump (ATW HP) energy
input, buffer/pressurisation sets, circulation pump set(s) and automatic controls
Pressed steel panel radiators shall be provided unless noted and shall be generally located
beneath windows and on external walls. All radiators shall have a minimum margin of 10%
over and above the calculated heat loss and shall be complete with individual thermostatic
control valves.
LPHW heating systems shall be two-pipe conventional type. The maximum pressure drop in
any particular pipe shall not exceed 250 P/m and the maximum water velocity shall not
exceed 1.0 m/s. The systems shall operate at the designated ATW HP design flow and return
temperature conditions noted in the data sheets.
Distribution pipework shall be installed in the ceiling/floor voids and shall be insulated. Circuit
isolation valves and regulation valves shall be installed to adequately balance the installation.
After pre-commissioning cleaning, the LPHW heating system shall be chemical treated with
anti-corrosion inhibitor.
Circulating Pumps
Each circulating pump shall be installed with a valve on the inlet and a valve on the outlet
connections. Pumps shall be adequately sized for the system design flow rate and resistance
and shall be of the pipeline-mounted type.
Pumps and adjacent pipework shall be isolated from the structure by means of vibration
isolation mountings to ensure noise and vibrations are not transmitted through the structure.
Pumps shall be suitable for the temperature and pressure of the system. The pumps shall be
of the variable speed type and shall be selected at the mid speed.
Radiators
Steel radiators shall be fabricated from not less than 1.25mm thick mild steel sheet welded at
the seams and strengthened by spot-welding between waterways; they shall be free from
distortion, have pressings which are regular in contour and be uniform in appearance.
All radiators shall be tested at works to a hydraulic gauge pressure of 6.9 bar (100 lb/sq.in).
Radiators shall be supplied with standard enamel finish.
A minimum clearance of 75mm shall be provided between the floor and the underside of any
pipe serving a radiator. The minimum clearance between the floor and the underside of a
radiator shall be 150mm.
The Contractor shall include for taking down radiators once for painting and for re-fixing.
All radiators shall be fitted with a thermostatic radiator valve on the flow and a lockshield valve
on the return. Low surface radiators shall be installed in accordance with the manufacturer’s
requirements. Radiators shall be to EN 422.
3.27
Air to Water Heat Pumps (ATWHP)
The Contractor shall supply and install ATWHP systems as noted in section 4.0.
Systems shall conform to the guidance requirements of B&SE TR30 & BSEN 8558,
BSEN 12831 and BSEN14825
The system shall be a packaged unit of proprietary manufacture complete with all integral
parts and associated engineering components and features including the following;

Fully sealed and pressurised HP cycle and LTHW loops

External/internal condenser, evaporator, compressors, expansion, control valves.

Buffer storage vessel. HWS cylinder(s), Wet heat exchange coils/elect immersions

LPHW/HWS primary circulation pumps

Control panel with BMS interface volt free contacts

Fully automatic controls and localised electrical isolation
The LTWH side has be of appropriate F/R temperatures to satisfy the required of the HWS
and LPHW flow rates and thermal demands at peak times and maximum temperature
differences. The wet water system side shall be complete with

Line isolating/commissioning stations/ strainers.

Dial immersion temperature gauges on HWS F/R and LPHW F/R

System fill and chemical treatment facilities

Pressurised system components.

Fully automatic controls and localised electrical isolation
Both internal and external HP sections shall be installed to the manufacturer’s technical
and space planning requirements with appropriate maintenance arrangements.
The FCU’s and associated controls shall be commissioned by the manufacturer’s /component
commissioning engineer.
The contractor shall detail all necessary associated bulderswork requirements including plant
room space planning allowances over and above the arrangements noted on the architectural
tender/planning drawing layouts.
3.28
It is the responsibility of the design and build contractor to determine fit for purpose plant
room space planning arrangements.
Split HP & VRF Comfort Cooling Systems.
Where indicated on the room data sheets the contractor shall install direct expansion
(DX)/VRF comfort cooling cassette/wall units. Inverter drive Heat pump (HP) units shall be
provided in all applications. Heat pump units shall be capable of simultaneous heating and
cooling to each of the cellular areas. The units shall be capable of achieving the total cooling
and heating requirements for area. The units shall incorporate a 'green’ refrigerant charge
and shall be complete with all interconnecting refrigeration pipework and control wiring.
Individual room controllers shall be provided for each internal unit.
The indoor units shall, be of the recessed ceiling mounted type or wall mounted with
centrifugal forward curved fans dynamically balanced, filters and directional supply air
louvres. Units shall be positioned so as not to cause thermal discomfort to sedentary
occupants and shall be complete with individual room wall mounted controllers.
Units shall be provided with rigid condensate discharge drainage and where necessary
interconnecting condensate lifting pumps. Lifting pump small diameter hoses shall connect to
the rigid pipework sections immediately adjacent the cassette unit. Rigid condense pipeline
systems shall comprise 25mm rigid plastic pipework with solvent welded joints. The condense
discharge systems shall be connected to the building drainage system at an appropriate
location and shall incorporate a line trap water seal. The trap shall be capable of inspection,
fill and removal.
Condensate drip trays shall be provided to collect local moisture from heat exchangers, tube
bends and fitting assemblies. Condense pipework falls shall not be less than 1-100 and all
pipework shall be adequately supported and complete with ID. All condensate discharges are
to be piped to convenient locations so as to cause no risk of icing in severe weather
conditions
The external condensing units shall be complete with variable speed compressors
and shall be located in agreed locations. Enclosing security cages and are to be provided by
the contractor where noted . The units shall be
installed and commissioned by a specialist refrigeration engineer.
The external condensing units shall be suitably supported and positioned in agreed external
locations. Protective cages shall be provided where units are to be sited in vulnerable
locations.
Alternative systems such as VRV may be selected where refrigeration pipelines
do not fall within acceptable limits or other store particular applications warrants this design
solution. Systems shall be capable of simultaneous heating and cooling to each of the areas
and of achieving the design criteria noted in the technical sections.
Suction and hot gas refrigeration pipework shall be insulated with class O vapour sealed
insulation to the manufacturer’s recommendations. Refrigeration pipework runs shall not
exceed the manufacturer’s maximum recommendations. Confined spaces at risk of receiving
an accidental refrigeration discharge spillage and causing potential danger to health shall be
adequately ventilated.
Comfort-cooled areas shall be provided with scheduled mechanical fresh air supply to maintain
a pleasant environment and satisfy occupancy requirements either via the indoor cassette unit
or via a supply air terminal. A mechanical ventilation balance shall be achieved by either direct
extraction from the respective space or via interfacing utility air extract systems. The systems
shall be installed and commissioned by a specialist refrigeration engineer and shall comply with
the F Gas Regulations.
Refer to section 4.0 for system Heat pump/VRF design
The contractor shall design and install refrigeration systems in accordance with the FGas
Regulations and shall employ competent and qualified site personnel.
The units shall be installed and commissioned by a specialist refrigeration engineer
3.29
Valves & Valve Regimes
The Contractor shall supply and install valve stations in the positions indicated on the
drawings to efficiently and adequately balance the space heating hot and cold water services
installations. All valves shall be installed in strict accordance with the recommendations of the
manufacturer. Crane, Hattersley or equivalent.
Valves shall be provided to effective control and isolation of the water distribution systems.
Bodies of valves and cocks up to 50mm size shall be of cast gunmetal / bronze or approved
non-dezincifiable hot-pressed body valves equal. Isolating valves shall be full gateway type
for heating, hot and cold water supply systems. Stop taps or cocks shall be of approved types
and located in positions accessible for operation and maintenance.
TABLE 1 : VALVE SCHEDULE
SERVICE/TYPE
SIZE
(mm)
LPHW /CW HEATING & COOLING
Isolating Valves
Gunmetal Gate Valve PN20
Cast Iron Gate Valve PN6
15 - 50
65 and above
Check Valve (NRV)
Gunmetal Check Valve PN25
Cast Iron Check Valve PN16
15 - 40
50 and above
Strainers
Malleable Iron PN16
Cast Iron PN16
15 - 50
65 and above
Radiator Valves
Flow - Thermostatic Valve with locking facilities
Flow - Wheel Valve
Return - Chrome Plated (Lockshield)
Open Vent 3-Way T-Port Gunmetal PN16
15 and 20
20 and above
MAINS COLD WATER (MCW)
Slot Operated Ball Valve
Bronze Stop Cock BS.1010
Double Check Valve BS.6282
Single Check Valve BS.6282
15 - 22
All Sizes
15 - 22
15 - 22
HOT & TANK COLD WATER SERVICES (HW, TCW) FIRE MAIN
Isolating Valves
Gunmetal Gate Valve
Capillary Fitting PN16
Compression Fitting PN16
Lever Operated Ball Valve
Gunmetal Flanged PN16
15 - 54
15 - 54
15 - 28
67 and above
GAS
Cast Iron Lubricated Plug
Lever Operated Ball Valve
32
15 – 25
Individual valves shall be provided to all hot & cold water appliances, at all building entry
locations and at all other positions indicated on the contract drawings
Valves shall be full bore line size and installed in accordance with the equipment
manufacturer’s requirements and recommendations and the Water Supply and Fittings
Regulations 1999.
The Contractor shall supply and install LPHW/CW valve stations in the positions indicated on
the drawings to efficiently and adequately balance the low-temperature hot water service.
Radiator and pipe coil valves shall be provided as noted in 3.13 and section 4.0
Valve stations shall be gate valve type to enable variable flow regulation. (Not ball valve type)
3.30
High Pressure Drains
Pressure discharge pipeline systems shall be installed in accordance with the requirements of
The Building Regulations and Pressure Regulations.
Pressure discharge locations shall be agreed with Building Control and shall cause no danger
to persons in or about the building. The discharge pipeline system shall be designed to accept
water temperatures of 95°C.
3.31
Air Venting and Drainage.
Automatic devices for air venting shall be provided at all high points in the pipework that they
are intended to vent. Automatic air vents have gunmetal or brass bodies, non-ferrous or
stainless steel floats and guides, and non-corrodible valves and seats.
Radiators, FCU’s and hot water appliances shall be provided at their lowest points with keyoperated gland cocks having hose unions connections. 15mm key-operated cocks with hose
unions shall be fitted at other low points in hot and cold-water systems and in wet space
heating/cooling systems to ensure adequate drainage facilities.
Adequate provisions shall also be made within the installations for flushing out, draining down
and filling the systems prior top final commissioning.
3.32
Pipework Systems
Particular pipework system materials are specified in section 4.0 of this document.
Black steel pipework for gas services shall have welded joints unless specifically noted in
section 4.0. Only qualified and competent welders shall be employed and they shall have
approved welding certificates of recognised bodies.
Fittings for copper pipework shall be of capillary type. All joints shall be pulled up tight without
distortion of any parts, and cleaned thoroughly on completion.
The Contractor shall allow in his tender for setting round piers and other obstructions and for
any minor modifications required by the Contract Administrator to circumvent site difficulties,
which are not obvious from the drawing. Details of any modifications required due to
particular site conditions shall be forwarded to the Project Manager for approval.
Pipework in visually exposed conditions shall be installed to have the neatest possible
finished appearance. Pipes generally shall follow the contour of the room. Vertical pipes
shall be plumb without off-sets and shall be set close to local projections in order to mellow
their lines.
All fittings shall, as far as practicable, be the same size as the tubes and pipes connected to
them. Bushes will only be accepted if the required outlet size of a fitting is not of standard
manufacture and reducers are not available. Eccentric bushes and square tees shall be used
where concentric bushes and pitcher tees might cause air to be trapped in the system.
Pipework shall be adequately supported in such a manner as to permit free movement due to
expansion and contraction. Pipework supports shall be arranged as near as possible to joints
and changes of direction. The spacing of the supports shall not exceed the centres given in
the Tables 1 and 2. Where there are two or more sizes of pipes the common support spacing
shall be based on the centres required by the smallest bore pipework.
Provision for movement due to expansion and contraction shall be made by changes in
direction of the pipework or by loops. Where the pipework is required to be pre-stressed for
the purpose of reducing expansion stress under working conditions, the extent of the cold pull
shall be indicated on the drawings.
Workmanship and standards shall be in accordance with good practise and the standards
identified in section 3.2 of this specification.
Pipework Centre Supports
TABLE 1 : CENTRE OF SUPPORTS FOR STEEL PIPEWORK
Horizontal
Vertical
Tube Size
(mm)
Bare
(m)
Lagged
(m)
Bare or Lagged
(m)
15
20
25
32
40
50
65
80
100
125
150
200
250
300
1.8
2.4
2.4
2.7
3.0
3.0
3.7
3.7
4.0
4.5
5.5
8.5
9.0
10.0
1.8
2.4
2.4
2.4
2.4
2.4
3.0
3.0
3.0
3.7
4.5
6.0
6.5
7.0
2.4
3.0
3.0
3.0
3.7
3.7
4.6
4.6
4.6
5.5
5.5
8.5
9.0
10.0
TABLE 2 : CENTRE OF SUPPORTS FOR COPPER PIPEWORK
Horizontal
Vertical
Tube Size
(mm)
Bare
(m)
Lagged
(m)
Bare or Lagged
(m)
15
22
28
35
42
54
65
76
108
133
159
1.2
1.2
1.8
2.4
2.4
2.7
3.0
3.0
3.0
3.7
4.5
1.2
1.2
1.5
1.8
1.8
1.8
2.4
2.4
2.4
3.0
3.7
1.8
1.8
2.4
3.0
3.0
3.0
3.7
3.7
3.7
3.7
3.7
3.33
Soil/Vent, Waste and Overflows
Where noted in section 4.0 the Contractor shall include for the supply, erection, testing and
commissioning of all above ground soil/vent, waste and overflow systems in accordance with
The Water Supply (Water Fittings) Regulations 1999 (WSWF) the specifications given below,
and for the subsequent supply, delivery and erection of the systems.
Systems shall be fixed in accordance with BS.8000 and the entire installation shall be of one
manufacture and type, a mixture of manufacturers' systems will not be permitted.
The Contractor shall include for all necessary connectors, brackets, vent guards, etc. for the
complete installation. Ridge vents, conventional vents and "Durgo" automatic admittance
valve arrangements may be used for venting purposes subject to approval by the Local
Authority.
Where soil pipes, vents and waste pipes pass through fire compartments floors and fire walls,
the Contractor shall supply and fit "Firesleeve" type intumescent sleeves.
All sanitary fittings shall be provided with deep seal traps to match the pipework system. All
WC's shall be fitted with a 20mm overflow pipe connected to atmosphere or other Local
Water Authority approved arrangements.
3.34
Sanitary Ware
Where noted in section in 4.0 the Contractor shall supply and install the sanitary ware
installations in accordance with the manufacturer’s recommendations.
Sanitary ware shall be to BS.3402 and be of vitreous china manufacture.
The Contractor shall ensure all sanitary ware is adequately fixed at appropriate levels and
shall set all ball valve levels and ensure that all orifice outlet installations are matched to the
connected water pressure service provisions.
Overflows shall be installed in accordance with the WSWF regulations.
3.35
Thermal Insulation
General
Specific requirements on insulation are noted in the 4.0 technical sections.
Thermal insulation shall comply with the requirements of BS.5422:2009 and BS.5970:2012
and shall be installed by a specialist insulation contractor.
The insulation shall be pre-formed rigid glass fibre sections/fibre glass duct wrap, protected
and finished in foil faced with aluminium band wrapping.
Insulation shall be complete with vapour barriers.
All insulation shall be suitably identified in accordance with BS.1710 including directional
arrows and service designation.
Insulation thickness shall be calculated to BS EN ISO 12241:2008
Ductwork Specifications
Internal Ductwork
Pre-formed rigid glass fibre insulation complying with BS.5422 finished with a facing of
factory-applied aluminium foil / plastic film, secured by adhesive and piercing fasteners, wire
netting enclosed or fibreglass duct wrap secured with aluminium straps /bands with vapour
barrier and finished in foil faced class 0 .
External Ductwork
Rigid duct slab insulation finished in aluminium cladding suitably sealed and weather proofed.
with vapour barrier. Where insulation is installed in vulnerable/accessed locations, the
contractor shall ensure adequate builders work protection/strengthening is provided to
alleviate any potential risk of damage to the insulation system. Or Ventureclad aluminium
type finish.
Piped services
Rigid half section pre-formed insulation complying with BS.5422 finished with a facing of
factory-applied aluminium foil / plastic film ID bands, secured by aluminium strap bands with
vapour barrier and finished in foil faced class 0 .
Not withstanding the above all insulation systems shall be suitable to resist attack from vermin
and birds. Ductwork Insulation shall be neatly trimmed around trimmed access doors with
edge cloaking plates. Silencer sections shall be insulated with ID.
Refer to section 4.0 for particular requirements
The thickness of insulation for all ductwork shall be determined in accordance with Table 3
below.
TABLE 3 : MINIMUM THICKNESS OF INSULATION ON DUCTWORK
CARRYING WARMED OR CHILLED AIR
Maximum Temperature Difference (°C)
between Air in Ductwork and Ambient Air:
10
25
50
Insulation Thickness:
38
50
63
Pipeline Specifications
Insulation thickness shall be calculated to BS EN ISO 12241:2008
The thickness of insulation for cold pipework for anti-condensation purposes shall not be less
than 20mm.
TABLE 4 : MINIMUM THICKNESS OF INSULATION FOR PIPED SERVICES
Size of
Pipe
(mm)
Domestic
HWS
LPHW
Chilled
Water
CWS
Int.
CWS
Ext.
Steam
Condense
Boiler
Feed
15
20
25
32
40
50
65
80
100
125
150
200
25
25
32
32
32
32
32
32
38
44
44
50
44
20
25
25
25
32
32
32
32
32
32
32
44
44
25
25
32
32
32
32
38
38
38
38
38
50
50
32
32
32
32
32
25
25
25
20
20
20
20
20
38
38
38
38
38
25
25
25
25
25
25
25
25
50
63
63
75
75
75
75
75
90
90
90
100
50
25
32
32
38
38
38
38
50
63
63
63
90
50
Flat Surfaces
3.36
Protection, Painting and Cleaning
The contractor shall arrange for the protection of any part or parts of the Works which are
liable to damage by others and for the continuation of such protection as long as is
necessary.
Plant and equipment items that are sent to site in a finished condition, i.e. air handling plant,
grilles etc, will be adequately protected during the execution of the works and will be cleaned
down on completion of work. Damage shall be suitably rectified by the contractor to restore
the item to it’s original specification.
All ferrous pipework shall be given two coats of red oxide following installation. Where the
lacquered finish has been damaged before installation, pipework shall be wire brushed and
given one coat of red oxide prior to installation and a further coat after installation. All welds
will be wire brushed and given a coat of red oxide on the day of the weld.
All supporting steelwork will be wire brushed and painted before assembly. Brackets and
steelwork manufactured away from site will be painted one coat of red oxide before delivery to
the site. After installation any damage will be made good and ferrous fixings painted. The
contractor shall include for finish painting of all gas service pipework as noted in 3.25 above.
Before any system or installation is subjected to site testing or commissioning it shall be
thoroughly cleaned both internally and externally.
3.37
Support Systems and Structural Requirements
The contractor shall include for all secondary steelwork and specialist support systems and
suspensions to adequately fix and suspend plant and services from the building structure.
The contractor shall include for providing working drawings for approval prior to fabrication of
the installations. All mild steel systems shall be primed and finished in gloss paint to an
agreed colour.
3.38
Works Tests
The CA will be entitled, at all reasonable times during the manufacture, to inspect, examine,
and test all equipment to be supplied under the Contract.
The Employer shall inform the contractor which equipment he wishes to inspect or test
equipment at the manufacturer’s works.
3.39
Control Systems
Specific details are given in the technical sections.
The control system shall have the capacity to be interfaced with a central controlled Building
Energy Management System. All plant and equipment shall have volt free contacts. The
equipment shall be engineered, supplied and commissioned by a specialist controls
contractor.
The specialist controls specialist supplier shall be responsible for the selection of the control
components, supply of fully schematic wiring diagrams, site supervision and commissioning of
the control systems. The controls specialist supplier shall install all damper actuators, pipeline
and duct detectors and control valve actuators.
Commissioning shall be in accordance with the CIBSE Commissioning Codes and
installations in accordance with the 17th Edition of the IEE Regulations BS 7671 with Both the
contractor and the controls specialist supplier shall be in attendance .
The contractor will be required to co-ordinate the commissioning with other building services
systems commissioning elements outside his direct control and shall liase with all specialist
contractors in this respect.
The contractor shall prepare a control design philosophy and table this to controls specialist
supplier. A system operational parameter/interfacing control design concept solution shall be
agreed as is necessary to provide satisfactory and effective HVAC/environmental control of
the contractor’s building services systems.
The contractor shall ensure that the specialist’s proposed controls package is compatible and
can be effectively integrated to the contractor’s system design.
The contractor shall advise on the particular requirements for averaging sensors/detectors
points were common zone return air systems may jeopardise the contractor’s particular
design solutions.(Such as return air placement and design)
The contractor shall liase with the specialist controls contractor during the design
development stage of the project to ensure that both the HVAC design and the interacting
controls systems are fit for purpose. See also section 4.0
3.40
Commissioning of Services
The contractor shall set to work and commission the building services systems in accordance
with the CIBSE/ BSRIA commissioning procedures and the current Building Regulation
Requirements.
All commissioning is to take place within the contract period and adequate time allowances
shall be included with the overall construction programme for this critical activity. The
Employer or his representative may witness commissioning tests.
The Contractor or his sub-contractor shall provide all necessary labour, supervision, certified
instruments, accessories, fuel and materials to carry out all site tests and trial runs prior to
commissioning.
All air ductwork pressure tests shall be carried out before the application of thermal insulation.
Air leakage tests, volume/velocity flow tests, temperature and pressure tests shall be
undertaken to a pre-programmed schedule and in a logical manner.
Commissioning shall be undertaken by manufacturer’s specialist commissioning engineers or
by the Contractor’s qualified and competent personnel.
spaces and at bundles of services.
Pipework shall be tested to twice the normal operating pressure (6bar test minimum)
3.41
Electrical Services
The contractor shall include for detailing and specifying all the mechanical services
installation electrical requirements to enable installation of these services. The contractor
shall allow for providing all manufacturers wiring diagrams and technical information that
may be reasonably requested. All electrical services will be undertaken by a specialist
contractor on behalf of the Main Contractor.
It is the contractor’s responsibility to ensure that air distribution systems are not
compromised or rendered less effective by the inappropriate interfacing of air diffusers
and electrical services lighting/containment installations during installation works.
3.42
Builderswork
All general builderswork will be by the Main Contractor. The contractor shall include for
providing all builderswork schedules and details necessary for the incorporation of the
contractor's installations within the overall building construction.
The contractor shall refer to the architectural layouts and structural engineering drawings
where appropriate.
SECTION 4.0
PARTICULAR ENGINEERING SPECIFICATION
SECTION 4.0 - PARTICULAR ENGINEERING SPECIFICATION – CONTENTS
Clause
Description
4.1
Extent of Works
4.2
Hazardous Materials
4.3
Disruptions to Existing Services
4.4
Removal & Modification of Existing Services
4.5
Existing Services Arrangements
4.6
Design Concepts
4.7
Mains Cold Water Infrastructure Services
4.8
Hot Water & Cold Water Services
4.9
HWS Cylinders
4.10
MCW & BCWS Distribution Services
4.11
Thermostatic Mixing Valves
4.12
Existing CWS Storage Tanks
4.13
Site Water Pressure
4.14
Boosted Cold Water Services
4.15
GSHP LTHW
4.16
ATWHP LTHW
4.17
Isolation Valves etc
4.18
Draining Down &Venting
4.19
ATWHP System
4.20
Server Comfort Cooling
4.21
F Gas Regulations
4.22
Pipework & Ductwork Services
4.23
Valve regimes
4.24
Galvanised Ductwork Systems
4.25
Diffusers & Air Terminals
4.26
Mechanical Ventilation/Exhaust Systems
4.27
Interview Room Air Transfer System
4.28
Thermal Insulation
4.29
Sanitary Ware Etc
4.30
Controls and BMS
4.31
Water Treatment & Sterilisation
4.32
Materials for Salvage
4.33
Fire strategy
4.34
Acoustic Engineering
4.35
Steelwork Supports
4.36
Interior Design
4.37
Commissioning
4.38
Room Data Sheets
4.39
Indicative Drawings
4.40
Electrical Services
4.41
Builder’s Work
4.42
Cost Inclusions
4.43
Programme and Order of Works
4.44
Temporary Works
4.44
Metering of Services
SECTION 4.0
PARTICULAR ENGINEERING SPECIFICATION
4.1
Extent of the Contract Works
The contractor shall be responsible for the design, supply, installation, testing and
commissioning of all necessary equipment and services to complete the works as detailed
within the specification and shown on the tender drawings. The primary works shall include
the following new services:







Removal/ modification of existing building services.
Air to water heat pump (ATWHP) systems
ATWHP space heating & hot water systems
Mains cold water (MCW) and boosted cold water (BCW) services
Comfort cooling systems
Mechanical ventilation systems.
Automatic control systems
Testing and commissioning.
Refer also to the accompanying indicative drawing 536/M/01
4.2
Hazardous Materials
It is not envisaged that hazardous will be encountered during the works.
The contractor shall undertake relevant risk assessments when undertaking his work.
If the contractor suspects that hazardous substances are present, he must immediately stop
that particular operation and inform the Contract Administrator. The Contract Administrator
will organise the carrying out all necessary testing and removal of hazardous
substances/materials that may be required. An asbestos survey analysis/register is available
from the CA
The existing LPHW services may contain water treatment chemicals. Details are available
from the Employer.
4.3
Disruption to Existing Services
The contractor shall minimise disruption to the operation of the existing building centre
facilities.
The contractor shall liase directly with the Contract Administrator to ensure that all work
packages that affect the disruption of existing services and buildings are programmed
accordingly to minimise service down time and disturbance to the centre.
All such disruption milestones shall be clearly identified on the contractor's programme, and
the contractor shall provide a method statement of each respective downtime work package.
Reference shall be made to the contract programme milestone dates.
The contractor shall allow for all necessary temporary services and out of office/business
operational hours that may be required to maintain essential heating/cooling/ventilation
services throughout the duration of the contract. This is a critical element of the project works.
The contractor shall refer to the order of works/phasing requirements of the project as defined
in the preliminaries /conditions of contract under separate cover. See also 4.42
4.4
Removal & Modification of Existing Services
The contractor shall include for removing all redundant building services systems and for
modification of existing services to affect the architectural building layout arrangements.
The contractor shall use safe and recognised practices in removing services and shall wear
appropriate protective clothing.
The contractor shall make proper and adequate arrangements for disposal of all waste
materials/liquids and shall comply with all Local Authority requirements and statutory
regulations.
4.5
The contractor shall carefully ascertain the designation of all services prior to removal. Should
the contractor remove any services in error he shall replace these with any equal and
approved service at his own expense. Particular plant and equipment shall be carefully
removed for salvage and handed over to the client /Employer for potential spares & reuse.
Existing Building Services Arrangements.
The full extent of the concealed pipework distribution systems is not known. The Contractor
shall undertake obtrusive site surveys at the time of the construction phase to precisely
determine location, size and type of existing services that are to be removed and modified.
The contractor shall undertake scan testing as appropriate and report his findings to the CA or
his representative. Specific as built drawings are available from the Employer but the
accuracy of these cannot be fully verified. There are no incoming or site distribution natural
gas services
4.6
Design Concepts
The Contractor shall include for the design concepts detailed within this engineering
specification in his tender return. The Contractor may offer alternative design solutions and
associated cost alternatives for review by the CA. Written clarification is necessary in respect
of any departures from the engineering principals indicated in the specification document.
Primary concepts are as follows:Exhibition Building

Retain GSHP space heating, electric water heaters/H&CWS, mechanical exhaust
systems. Modify and provide additional services were noted.
Farm House (FH) Building

Retain GSHP space heating and mechanical exhaust systems.
Modify and provide additional services were noted.

Install new ATWHP space heating to existing unheated areas as noted

Install new mains water services and ATW HP pressurised hot water services.
Remove existing electric point of use water heaters.

Install new mechanical ventilation systems as noted.
Retain existing mechanical ventilation as noted
Camping FH Building

Install new ATWHP space heating as noted

Install new boosted water services and ATW HP pressurised hot water services.
Remove existing central electric HWS storage cylinders & point of use water heaters.

Install new mechanical ventilation systems as noted.
Retain existing mechanical ventilation as noted
The contractor shall refer to the room data sheets and section 4.0 of this specification for
design criteria and particular work package requirements
4.7
MCW Incoming Infrastructure/Distribution Systems
The existing incoming mains cold water infrastructure service to the building centre is to
remain unaltered as the current existing arrangement. The contractor shall investigate and
record the precise arrangements by way of isolation flow tests to all installed appliances.
It is currently assumed that a single 22mm MDPE enters the site and splits 22mm to the new
exhibition plant room and 22mm to the camp site female campers WC.
A water meter is located at each incoming location.
The underground interconnecting service is to remain as this existing arrangement.
The contractor shall undertake localised removals, modifications and extensions to the
internal distribution MCWS as noted in the specification
4.8
Installations shall conform to local water utility company requirements and the WSWF
Regulations 1999. All systems are to be sterilised prior to completion and handover.
Hot and Cold Water Systems
Exhibition Area
The contractor shall retain the water meter and general MCW arrangement to the exhibition
area.
An electric point of use heater and an extended MCWS service shall be installed to service
the new visitors WC in this area. Thermostatic mixing valve control (TMV) shall be provide at
the discharge
A main pressure Zip Aqua III water heater shall be salvaged from the existing farm house
installation for this application.
Farm house (FH)
All hot water services shall be provided by the central ATW HP mains pressure hot water
storage cylinder(s). All existing pressurised electric point of use water heaters shall be
removed
A secondary HWS pumped circuit shall be installed to minimise dead legs and maintain HWS
drawn off temperatures within design tolerances.
The cold water system shall comprise a mains pressure system.
Camping Building Area (FH)
All hot water services shall be provided by the central ATW HP pressurised hot water storage
cylinder(s). All existing pressurised electric point of use water heaters and central gravity fed
HWS cylinders shall be removed.
The cold water system shall comprise a boosted pressure system.
Thermostatic mixing valve control (TMV) shall be provided at the shower & wash basin
discharges
The contractor shall include for phased sterilisation of the systems as required to meet the project
phasing/ programme milestones and as necessary when modifying or extending existing services.
Sterilisation certificates shall be included within the O&M manuals
Installations shall conform to local water utility company requirements and the WSWF
Regulations 1999.
The general HWS thermal input shall be provided by an ATW HP via a buffer storage vessel
heat sink and pressurised water storage cylinder(s) of appropriate thermal ratings and storage
capacity
HWS shall be stored and circulated within the cylinders at 60C at times of operation.
Appropriate electrical immersion thermal input boost rating shall be provided to maintain
delivery and storage hot water temperatures and to offset system losses
A secondary HWS pumped circuit shall be installed to minimise dead legs and maintain
drawn off
HWS temperatures within design tolerances
Hot water to the exhibition area WC is to be provided by a reused Zip Aqua III pressurised
electric point of use water heater serviced from the existing local plant room mains cold-water
service.
The contractor shall undertake localised removals, modifications and extensions to the HWS
system primarily in the existing toilet accommodation in the Farm House Building.
Individual ball type in-line valves shall be installed adjacent all water appliance/sanitary
fittings.
Hot and cold water services at individual combined outlets shall be suitably balanced in pressure.
All pipework shall be insulated in accordance with the specification and shall be pressured
tested to twice the normal working pressure of the respective service.
The contractor shall provide all non-mixed hot water service (60ºC) tap ware outlets with
suitable ID labels denoting ‘caution VERY hot water’. Including campers pot water sink units
Installations shall conform to the local utility requirements and the WSWF Regulations 1999
4.9
Hot Water Storage Cylinders. ATWHP System
The contractor shall provide hot water service storage cylinders of appropriate design and capacity.
Hot water service generators/storage cylinders shall be sited at ground floor level within the store/
plant room.
The hot water shall be generated by the AWT HP primary coil(s) and uplifted at the cylinders
o
by electric immersion heaters. Outflowing system HWS shall be at 60 C and reduced in some
instances in temperature at the point of use thermostatic mixing valves.
Cylinders shall be complete with the following fittings / accessories and shall be installed in
accordance with the manufacturer’s requirements.











ATW HP primary heat exchange coil of appropriate size/rating
HWS f/r with isolation valves
Safety valve/HP safe discharge to drain
Drain down isolation cocks
Interconnecting parallel pipeline configurations
Valved boosted water cold feed
Automatic programmer and control system (volt free contacts)
Dial temperature and pressure gauges on HWS primary & secondary F/R
Secondary HWS pump set/valves arrangement
Mains pressure/expansion vessel with control/pressure relief valves
Staged kw electrical Immersion heaters of appropriate size/rating
Storage capacities shall be determined from CIBSE guidance and EN 8558 the Contractor
shall not be less than the particular design parameters noted below.

No of showers in peak 5 min period 7no ( 1no full session)

Peak no. of showers in 10 minute period 12 no.(2no full sessions)

Peak no. of showers in 60 minute period 22 no.(4no full sessions)

Average shower duration 5 mins at 5 litres/min HWS flow.

In addition allow for appropriate campers pot wash and general basin consumptions in
addition. (Confirm diversity factor allowance)

Recovery time not less than 120 minutes for complete storage water volume.
The contractor’s design HWS storage capacity and associated heat recovery period shall be
agreed in consultation with the AWTHP manufacturer and shall be such so as not be impose
undue electrical immersion load on the system.
4.10
Mains and Boosted Cold Water Services Internal Distribution
The contractor shall retain the exhibition area metered MCW services & extend the system to
the new WC accommodation adjacent the existing disabled WC.
The camper’s area MCW service shall be modified as follows:

New 22mm MCW service to the ATWHP plant area/boosted water storage tanks ball
valve assemblies.

Boosted CWS to campers area and to the HWS storage cylinder cold water feeds

15mm MCW to the Farm House offices toilet/utility areas

The 22mm MCW feed to water storage tank(s) is to be metered
(Metering of BCWS – to cylinders and connected HW appliances & connected CW
appliances)
The contractor shall include insulation of MCW & BCWS services as the specification
requirements.
4.11
Thermostatic Mixing Valves.
The contractor shall provide localised thermostatic mixing valve (TMV) arrangements to the
following appliances to limit hot water outlet temperatures.

All male, female and accessible showers

All male, female and accessible basins

Access WC basin & Visitors WC basin

Existing exhibition WC basin
All TMV’s shall be have an integral flow restriction capability.
Multi point TMV’s may be provided subject to compatibility with the design HWS flow
temperature inputs and the system hot and cold water pressure criteria.
All general showers are to be complete vandal resistant components, including fixed riser
pipe/head and push button time flow restriction to limit the amount of water discharge.
Accessible showers are to be complete with lever flow/ temperature control with flexible riser
pipe.
Particular care and attention shall be given to laying out services to ensure valve stations/
TMV’s are fully accessible and pose no H&S risk and legs shall not exceed 2m in length.
Units shall be shall be suitable for the system hot and boosted cold-water pressure
arrangements and be complete with flushing kit & inline strainer and isolation valve
assemblies.
The showers shall incorporate motorised on off automatic control by way of coin operated
activation. The type and extent of the system shall be agreed with the employer.
The contractor shall include for individual coin activation control to each of the 7no showers.
The units shall be installed in accordance with the manufacturer’s requirements and the
installations shall comply with the Water Regulations, the Water Supply and Fittings
Regulations 1999. Showers - Mira. Basins -/Hornes Engineering or equal.
4.12
Existing CWS Storage Tanks.
The existing campers area is currently serviced by two gravity fed HWS storage cylinders
each of approximately 300 litres capacity located at ground level in the male campers area.
These existing cylinders are to be removed and replaced with ATWHP system cylinders of
greater capacity. The cylinders are fed by two GRP tanks located above the male camper’s
area.
Each tank is approximately 2000x1000 x1500h (2500litres each), See also 4.44
It is envisaged that that these tanks can be retained and utilised to provide a stored water
reservoir source for the proposed boosted water pump set/HWS cylinder(s) feed and cold
water supply.
The contractor shall provide additional supplementary storage capacity as may be required
for his design proposals.
The contractor shall allow for inspecting, draining down, cleaning and adapting the tanks as
may be required for incorporation into his design strategy and for specification compliance.
Tank outflows shall be symmetrical in design to ensure equal through flow in each tanks.
Additional supplementary storage capacity shall be provided as required
The tanks shall be suitable for and provide a potable water service supply.
The completed tank installation shall conform to local water utility company requirements and
the WSWF Regulations 1999. All systems are to be sterilised prior to completion and
handover.
4.13
Site Water Pressure.
The Contractor shall site test the existing incoming mains cold water infrastructure water
pressure It is currently proposed to provide a boosted water services (BCWS) water storage
system to the new ATW HP hot water services cylinder(s) feed cold water service as noted
above.
The boosted water services shall be designed to operate at a minimum working pressure of 3
bars and pressure tested to 5 bars. The Contractor shall ensure ‘fit for their’ purpose
functional designs and systems.
4.14
Boosted Water Services
The Contractor shall install within the designated ground floor level plant room, a cold-water
booster set complete with storage water break tanks. (Existing 2no storage tanks utilised See
4.12)
The unit shall provide a boosted water facility to the ATW HWS service feed and cold water
appliances and shall incorporate the following design features:

Duplicate ball valve assemblies and normally open/closed valved interconnections.
Pipeline arrangement to ensure equal and adequate water flow/drawn of through each
tank.

Sequenced inverter duty pumps (2No) and standby pump (1no). Low noise pumps.
Integral control panel with pump high/low water alarm controls.
AV mounting kit and flexible delivery & suction pipeline connectors

Anti-surge valve protection

Normally closed bypass linking incoming MCW service & outgoing boosted water service

Raised out of tank ball valve assembly/housing to maximise tank water storage capacity.

Pre insulated tank and insulated pipework services.

Overflows and valved drain to each tank section.

Concrete plinth and bearing base for pump set.

Electrical isolation and automatic control panel with volt free contacts
The booster pump set shall be a proprietary packaged set and shall be installed and
commissioned by a specialist contractor/manufacturer or equal approved.
Design arrangements shall be configured accordingly and the combined booster pump set/
tanks installations shall be suitable for a potable water storage supply.
The system shall be suitable for the peak drawn off hot and cold water service flow rate and
capacity demands.
The installations shall conform to the requirements of the water utility company requirements
and the WSWF Regulations 1999.
4.15
GSHP LTHW Heating Underfloor & Radiator Space Heating Systems
The existing ground source heat pump (GSHP) associated underfloor heating (Exhibition
area)
pumped circuit is to remain unaltered.
The existing ground source heat pump (GSHP) associated radiator (Farm House) pumped
circuit is to be modified to accommodate the new architectural layout arrangements.
Specific existing radiators are to be repositioned and selective new steel panel radiators of
appropriate thermal output are to be installed. All heat emitters shall be appropriately sized
are to cater for the building fabric, natural air infiltration and mechanical ventilation loads in
accordance with BSEN 12832 and shall have localised thermostatic control. Systems shall
incorporate drain and air venting provisions. The contractor shall refer to the room data
sheets for details.
The contactor shall allow for all necessary drain downs, refills, venting and recommissioning
of the
GSHP installations as may be required to facilitate these works and provide fit for purpose
systems. Water treatment chemical additives contained in the system shall be replenished by
the contractor.
All new sections of pipework shall be pressured tested to twice the normal operating
pressure.
All new system components shall be suitable for the existing GSHP F/R temperatures and
system pressures.
4.16
ATWHP LTHW Radiator Space Heating Systems
The contractor shall install new radiant wet panel radiator installations/pipe coils to the Farm
House and Campers areas as noted in the room data sheets. The primary energy source
shall be via the new ATWHP installation.
A dedicated automatically controlled pump set two pipe heating circuit shall be provided.
A separate circuit shall be provided to the camper’s area and to other areas. (2no zones)
This is facilitate heat metering of the camping zone area.
All heat emitters shall be appropriately sized are to cater for the building fabric, natural air
infiltration and mechanical ventilation loads in accordance with BSEN 12832 and shall have
localised thermostatic control. Systems shall incorporate drain and air venting provisions.
All new system components shall be suitable for the ATWHP F/R temperatures and the
respective system pressures.
New commissioning valve stations and isolation arrangements shall be installed as required.
All concealed pipework within voids and in plant room & stores shall be insulated to the
specification requirements.
All new sections of pipework shall be pressured tested to twice the normal operating
pressure.
Systems shall be designed to operate at the ATWHP flow & return design conditions.
(50C flow/35C return @-5C –TBC/ATWHP manufacturer to advise)
All radiators/radiant panels are to be tested to 6.9 bar and are to be complete with the
manufacturer’s special brackets, concealed air vents and connections noted below. Radiators
shall be free from distortion, have pressings/castings, which are regular in contour, and
uniform in appearance.
Radiators shall be finished in standard white primer and shall be decorated by others.
Contractor is to allow for removing and re-fixing the radiator casings once for decoration. All
radiators shall be finished in RAL 9003 standard powder coated finish.
A two-pipe conventional mild steel distribution pipe system shall be installed as indicated on
the drawings. Cross-over/rising services to radiators shall be carefully co-ordinated.
Radiators shall be complete with 15mm BOE connections, key operated air vent, drain cock
and thermostatic and locksheild valves. Myson/Stelrad or equal
4.17
Isolating, Regulating and Commissioning Valve Stations
The Contractor shall supply and install valve stations to efficiently and adequately balance the
space heating hot and cold water services installations.
.
All valves shall be installed in strict accordance with the recommendations of the
manufacturer. Crane, Hattersley or equivalent.
4.18
Draining Down, Venting, Setting to Work & Recommissioning
The Contractor shall include for draining down/venting, setting to work and re-commissioning
all new, retained/utilised existing LTHW,CW,BCWS & HWS plant and services as necessary
to ensure complete and proper operation of the systems.
Where necessary the contractor shall consider freezing of pipelines to minimise disruption to
the primarily distribution services and to expedite the works.
The contractor shall undertake a detailed survey of the existing isolation valve stations
arrangements and prepare method statements including cause and affects outcomes prior to
any attempted isolation of pipeline services.
This is to ensure as far as reasonable practical the contractor determines the requirements for
any pipe freezing/new valve installation and the degree of potential disruption to the building
centre services.
4.19
Air to Water Heat Pump System (ATWHP)
General
The Contractor shall supply and install ATWHP systems as noted in section 4.0.
Systems capacities and performance shall conform to the guidance requirements of B&SE
TR30 & BSEN 8558,BSEN 12831 and BSEN14825
The system shall be a packaged unit of proprietary manufacture complete with all integral
parts and associated engineering components and features including the following;

Fully sealed and pressurised HP cycle and LTHW loops

External/internal condenser, evaporator, compressors, expansion, control valves.

Buffer storage vessel. HWS cylinder(s), Wet heat exchange coils/elect immersions

LPHW/HWS primary circulation pumps

Control panel with BMS interface volt free contacts

Fully automatic controls and localised electrical isolation
The LTWH side has be of appropriate F/R temperatures to satisfy the required of the HWS
and LPHW flow rates and thermal demands at peak times and maximum temperature
differences. The wet water system side shall be complete with

Line isolating/commissioning stations/ strainers.

Dial immersion temperature gauges on HWS F/R and LPHW F/R

System fill and chemical treatment facilities

Pressurised system components.

Fully automatic controls and localised electrical isolation
Both internal and external HP sections shall be installed to the manufacturer’s technical
and space planning requirements with appropriate maintenance arrangements.
The ATWHP sectional components shall be sited in allocated locations as indicated on the
architectural layout plans
The unit shall be sized to cater for the HWS and space heating demands of which the HWS
instantaneous demand shall take precedence in the control philosophy.
Microgeneration Certification Scheme (MCS) accredited contractors shall undertake all
Renewable Heat Incentive (RHI) heat pump installations under the requirements and
guidelines of Ofgem.
The contractor shall be accredited under the Microgeneration Certification Scheme (MCS)
and shall undertake all heat pump installations as per Microgeneration Installation Standard
(MIS) 3005 (issue 4.3) and any other requirement deemed by OFGEM in order to enable the
«client» to successfully claim the non-domestic Renewable Heat Incentive (RHI). Upon
commissioning, the contractor will deliver a valid and compliant MCS Certificate for the
installation(s).
The contractor shall at the earliest opportunity determine the design electric peak/diversified
electrical loadings and associated run amperage to enable the Employer/design electrical
contractor to undertake a feasibility of the proposed connected load against the existing
building incoming power take.
Under no circumstances shall the project proceed on site and or plant and materials be
ordered until this feasibility study has taken place and the contractor is authorised to proceed
in writing.
The ATWHP shall be supplied by Dimplex or equal and installed by Geowarmth or equal
approved
Contact Dimplex Mark Deeney 07977 982230
Con’td
Microgeneration Certification Scheme (MCS) Installer Standards
The systems shall conform to the standard requirements of the MCS including in the
categories





Material supply
Design
Installation
Setting to work and commissioning,
Energy Metering and reporting.
Approved guidance and reference materials to be used with the standards can be found
below and within MCS guidance MIS3001/2/3/4/5 and 3072
The completed installations must be MCS or equivalent EN45011 or ISO 17065 accredited if
installed capacity is 45kWth or under the requirements heat pumps
Energy Related Products (ErP) Designation
Manufacturer’s equipment and the installer’s completed system shall carry an energy related
products ErP designation as required post March 2016.
The ErP comprises of two directives: Ecodesign and Energy Labelling. Ecodesign will set a
minimum energy performance and environment criteria for energy related products, and
Energy Labelling will see the introduction of a product label with an efficiency band between
A+++ to G (with A+++ being the highest performing product).There will also be an energy
label for the complete installed system.
The contractor shall provide system components and completed integrated system of not less
than A+++rating. (coming into force March 2016)
Energy Metering
The contractor shall supply and install metering station equipment to satisfy the requirements
of Ofgem for RHI systems and installations. Guidance is given in the Ofgem publication
‘Essential Guide to Metering’
Space heating, domestic hot water services, heat pump electrical consumption and hot water
service immersion heater circuits shall be appropriately metered .Metering positioning and
span of control guidance is given in Appendices 3 and 4 of the above publication.
Meters shall be positioned in accordance with the manufacturer’s requirements to ensure
accuracy of readings. Wet meters sham be installed with appropriate free length inlet and
outlet runs to ensure laminar flow and prevent turbulent flow inaccuracies.
In addition to the metering equipment the contractor shall be responsible for provision of all
associated requirements such as remote temperature detection/sensing facilities.
All meters shall be complete with system ID and be of the smart meter type.
The contractor shall liaise with the electrical contractor to ensure adequate electrical power
requirements are made for all metering stations
End User Interfacing
The contractor shall allow for appropriate liaison and support with the designated end
user/client representative to ensure a seamless and coordinated approach in respect of
particular applications for any available grant/funding,in the RHI scheme allocation progress
and in preparation of Ofgem/MCS submission documentation at the design, installation and
completion stages of the project.’
4.20
Server Room /Compartment Comfort Cooling Heat Pump System
The Contractor shall supply and install a wall mounted comfort cooling/heating heat pump
systems to service the server cabinet compartments. a specialist approved contractor shall
install installations on behalf of the contactor to the arrangements noted below.
The electrical contractor shall provide power supplies for the systems.
GPR/plastic off white covering systems shall be provided to contain all internal visible control
and refrigeration pipeline systems. All external refrigeration pipelines/wiring to/from condenser
areas shall be protected by removable containment systems.
Internal heat pump terminal unit shall be complete with a switched fused spur contained in a
non-conspicuous location. (Not a rotary isolator).The system shall be complete with all
interconnecting components/controls/refrigeration lines and small bore pumped hose
condensate drainage line taken to the gravity condense drainage collection system.
The internal terminal condensate discharge shall be piped in 22/28mm diameter to a
convenient waste water drainage system located in the staff kitchenette or other agreed
location via condensate lifting pumps.
The external condenser shall be located in an agreed location (Exhibition disabled WC -TBC).
The external condenser shall be concealed in a builders work timber compound with hit/miss
fencing to the HP manufacturer requirements
The system shall be complete with refrigeration pipeline/indoor & outdoor unit ID
The system shall incorporate an automatic wall mounted key pad controller and which
shall be located in the kitchen office
The systems shall contain R410A refrigerant or equal and shall be complete with volt
free contacts/hardware IQL’s for Trend interface connection.
Each individual terminal unit and outdoor condenser shall be complete with a piped
condensate discharge/ drainage system taken to a convenient foul waste drainage
system.
A removable security cage shall be provided unless otherwise directed by the CA
Systems shall be installed by a specialist refrigeration contractor in accordance with the
manufacturer’s requirements. Mitsubishi Electric or equal
4.21
The F Gas Regulations and Refrigeration Pipework.
The contractor shall design and install refrigeration systems in accordance with the F gas
Regulations and shall employ competent and qualified site personnel.
The contractor shall provide an ‘as-built’ log book/manual of all particular site refrigeration
systems. The manual shall contain the following information for each system.

System cooling capacities and pipeline/plant refrigerant charges in kg.

As installed locations of refrigeration pipelines

Condenser and coil locations and arrangements

Manufacturer’s inspections/maintenance requirements
The contractor shall provide pipeline system identification and reference on all individual
refrigerant lines. Cross-references to internal cassette/cooling coils and external heat
rejection condenser plant shall be incorporated on the individual pipelines.
Refrigerant pipelines shall be finished in Armaflex black and be contained in
trunking/containment systems within all internal and undercroft distribution areas
4.22
Pipework and Ductwork Services
The Contractor shall install new services in the following materials:-
4.23
Service
Material
LTHW heating
Copper Tube to BS.2871 Part 1 Table Xl
BCWS &MCS/HWS
Copper Tube to BS.2871 Part 1 Table X.
Condense trap drains
UPVC plastic to system manufacturer’s specifications
Ductwork
DW144 galvanised above 110mm dia
Ductwork
UPVC 110mmdia
Valve Regimes
The Contractor shall include for adequate and proper valve arrangements for the regulation
and control of the wet building services systems. Individual valves shall be provided to:




ATW HP/cylinder/tank connections as detailed in this document.
Sanitary ware appliances & Bib taps.
White goods appliances & electric water heaters
Buffer vessels and water appliances and distribution services as detailed in this
document.

Domestic sprinkler services as required by the specialist contractor.
Valves
shall
also
be
requirements/recommendations
4.24
provided
as
the
equipment
manufacturers
Galvanised Ductwork Systems
The contractor shall install galvanised air distribution ductwork to DW144 as indicated In the
data sheets. Ductwork systems shall be complete with access inspection/cleaning door
provisions and fire dampers and shall be installed in accordance with the requirements of
section 3.0.
A specialist contractor on behalf of the contractor shall undertake the galvanised ductwork
installations. The contractor shall produce fabrication drawings of ductwork arrangements and
support details for review prior to fabrication and erection of the installations. The contractor
shall supply and install the grilles, diffusers and terminals noted in accordance with the
manufacturer’s requirements.
All supply, return and extract grilles/diffusers run off branches shall be complete with line
volume control (VCD’s), together with an adjacent clean out access door. In addition all
terminal grilles /diffusers shall be complete with OBD’s or other form of damper control.
Acoustic lined flexible connection ductwork with a maximum section length of 750mm shall be
provided off the diffuser/grille spigot box for connect to the associated rigid galvanised
ductwork.
Ductwork fire dampers od appropriate design and rating shall be provided to all systems were
required as an integral part of the building fire compartmentation and fire prevention/spread
strategy. Ductwork access and cleaning doors shall be provide a strategic locations, fire
dampers and bends and configurations as noted in section 3.0 and
4.25
Diffusers, Grilles and Air Terminals
The contractor shall supply and install appropriate fit for purpose diffusers & grilles.
All terminal units shall be installed in accessible locations and be of adequate density in number
All diffusers/grilles to be complete with OBD’s, acoustic flexible ductwork connections
All diffusers/ grilles to be colour coded white
All eggcrate grilles shall be complete with removable core grilles
Exhaust/extract ductwork shall not be insulated but shall be complete with ID
4.26
All diffusers and grilles shall be installed in accordance with the manufacturer’s requirements.
Gilberts (Blackpool) Ltd or equal
Mechanical Extract/Exhaust Ventilation Systems
The Contractor shall supply and install mechanical ventilation systems as noted below and in
the room data sheets. The Contractor shall provide all air movement fans, ductwork and
grilles as is necessary to provide efficient and proper ventilation in accordance with the
Building Regulations and this specification. The primary systems concepts are noted on
indicative drawing 536/M/01.
The contractor shall include for the mechanical ventilation concepts as noted on the indicative
drawing within his cost submissions. Alternative design solutions/cost may be tabled
separately.
Primary system concepts as follows;

Ducted extract to the female and male changing/toilets with gable discharges

Ducted extract first floor offices accommodation with gable discharges

Ducted systems to Laboratory , Manager and Kitchen areas

Wall fan exhaust to open plan area

Air transfer system to interview room. See below.
All design concepts shall be agreed with the contract Administrator and Local Authority
planners
All discharge terminal locations and designs shall be clearly defined:
All exhaust terminals shall be colour coded and co coordinated with the building construction
details
All exhaust locations and types must be agreed with the project design team and LA planners
Fans shall be of a ducted or wall mounted type as noted on the room data sheets.
Individually fans shall be complete be complete with automatic control facilities as follows:
Appropriate IP rated/ Low voltage fans shall be installed in ‘wet’ zone areas.
System fans to be ceiling recessed type where possible and complete with:






Appropriate IP rating & local electrical isolation
Speed control.
Dual speed-trickle/boost to female and male toilets.
Boosted speed operation by humidistat over-run timer
/PIR operation with adjustable over-run timer.
Local electrical isolation
Minimum air change rates are noted in the room data sheets
4.27
Interview room Air Transfer System Mechanical Ventilation System
The Contractor shall provide an air transfer fan(s) system (ATF) to the open plan area cellular
interview room. The system shall incorporate the following features/components.

Ducted room SA input sourcing from the open plan area and discharging into the
interview room. 2way diffuser in corner of room, line fan and speed control

Ducted room ExA discharge exhausting from the interview room to atmosphere at high
level.
2way diffuser in corner of room, line fan and speed control

Speed /on/off control to each of the air input and air exhaust systems.

Low noise system and fans. NC 35

Minimum 10ac/h input and exhaust
The interview room is to have a false ceiling and the ductwork/fans shall be installed above
this level in accessible locations. Fresh air is to be transferred from the open plan area which
is naturally ventilated.
4.28
All design concepts shall be agreed with the contract Administrator and Local Authority
planners
All discharge terminal locations and designs shall be clearly defined and concepts shall
include:
Thermal Insulation of Services
A specialist-approved contractor on behalf of the contractor shall execute the whole of the
insulation works under this contract.
Services shall be provided with insulated vapour barriers (VP) where noted and are to be
insulated in accordance with the specification tables and with Kooltherm or equivalent thin
section products and finished as follows:
All plant room services to be finished in foil faced insulation with VP were appropriate

All concealed/boxed in LTHW heating services to be finished in foil faced insulation.

All concealed/boxed in MCW/BCWS to be finished in foil faced insulation with VP

All concealed/boxed in HWS cooling services to be finished in foil faced insulation with
VP

Direct exhaust or extract air ductwork shall not be insulated.
All distribution services to be adequately identified and band coded to BS.1710 with
directional arrows together the respective service designation.
Armaflex or similar insulation products are not acceptable as insulation systems
4.29
Sanitary Ware, Tap Ware and Waste Systems
These systems and appliances are detailed under separate cover and are to be provide by
others.
The Main Contractor will supply and install all sanitary ware appliances and tap ware in the
positions indicated on the drawings.
The contractor shall allow to connect directly to all sanitary and white goods appliances
The Contractor shall set WC cistern levels and ensure systems are suitable for operation on
the boosted cold water pressure.
The Contractor shall include for connection to kitchen/laundry appliances including washing
machines dryer, dishwashers etc provided by the Main Contractor.
4.30
Control Systems.& BMS Trend Controls
The contractor shall provide all automatic controls as required for the complete and energy
effective operation of the systems. Automatic controls shall be provided as follows.
The ATWHP shall be complete with a manufacturer’s control system & panel incorporating
pump set selection/changeover, pressure set, buffer HWS and cylinder storage vessel(s).
Time programmes/ temperature control/pressure
sensors/detectors/immersion heaters.
control
and
including
all
remote
The server comfort cooling system shall be complete with time and temperature key pad
control.
The boosted water pump set shall be complete with a manufacturer’s control system & panel.
Mechanical ventilation systems fan control facilities such as humidity/temperature/presence
detection/speed & reverse controls as noted in the room data sheets.
The following fan systems shall incorporate dedicated (individual) multi- channel time control
with pre- set trickle speed and boosted speed selection.

Male campers……….Female campers…………..Pot wash
The following plant and equipment shall incorporate volt free contacts and have future
capability for remote control via a BMS Trend system house

ATWHP……….Server comfort cooling………..Boosted water pump set
Controls shall be of a propriety manufacturer and supplied as an integral part of the
respective system. All control shall be set to work and commission
by the
manufacturer/component person
4.31
Water Treatment Regimes Etc
The Contractor shall include for chemical dosing of the space heating system in accordance
with the ATW HP manufacturer’s/underfloor heating specialist’s requirements.
Provision shall be made in the system design for drainage, sampling and fill of chemical
additives for life time maintenance regimes.
The domestic hot and cold water services systems shall be cleaned and sterilised in
accordance with the WSWF Water Regulations 1999.
4.32
Materials for Salvage & Reuse
The contractor shall carefully remove and reuse one Zip Aqua III electric point of use water
heater within the new exhibition visitors WC.
All other redundant Zip Aqua III electric point of use water heaters and associated
accessories shall be carefully removed and deposited with the Employer for his potential
reuse.
The contractor shall include for disposal of the said plant and materials in part or full should the
Employer decided to retain specific parts or decline the offered salvaged items
4.33
Fire Strategy and Building Compartments
The Contractor shall note the individual building fire compartments as indicated on the fire
strategy architectural plans available from the Main Contractor.
All mechanical services passing between these areas shall be fire stopped in accordance with
the Building Regulations and Building Control requirements
4.34
Acoustic Engineering
The contractor shall install services so as to minimise the outbreak/transference of sound.
Appropriate hangers and bracketing arrangements shall be incorporated on all plant,
equipment and systems.
Anti-vibration mountings and fixings shall be used on all ATW HP, boosted water pump sets &
rotating fan equipment and shall be installed in accordance with the manufacturer’s
requirements.
All fans and other noise producing plant/equipment shall comply to the NC requirements of
the specification
4.35
Steelwork Support Systems and Access Provisions
The Contractor shall include for all secondary and specialist support systems and
suspensions to adequately fix and suspend plant and services from the building structure. All
mild steel systems shall be primed and finished in gloss paint to an agreed colour.
The Contractor shall include for providing working drawings for approval prior to fabrication of
the installations.
4.36
Mechanical Services and Interior Finishes/Design
The development is to be built to a high standard with attention to interior design excellence
and the mechanical services will be required to be effectively co-ordinated and integrated.
Distribution services shall generally be concealed in voids and boxing details as indicated in
this document and on the accompanying Architect’s drawings.
4.37
Commissioning
The Contractor shall include for commissioning for all new and retained/reused existing plant
and services. This is to ensure complete and proper operation of the mechanical building
services systems both to the proposed refurbishment areas and the retained exhibition areas
shall include GSHP……AWTHP….LTHW…./HWS….MCW&BCWS…..Mechanical ventilation
system.
The Contractor shall include for the testing and commissioning of the systems in accordance
with B&ES and CIBSE Commissioning Codes of Practice and the Building Regulations
including parts L2A/L2B. Component persons shall undertake commissioning and certificates
shall be provided.
4.38
Room Data Sheets
The Contractor shall refer to the room data sheets attached in appendix A.
4.39
Indicative Mechanical Services Drawings
The Contractor shall refer to the accompanying indicative drawings. Mechanical Services
536/M01
4.40
Electrical Services
The Main Contractor shall be responsible for all electrical services associated with the
mechanical building service installations. The works shall be carried out by a suitably qualified
ECA/NICECI registered electrician and shall comply with BS.7671 including all amendments
The contractor shall provide a schedule of electrical heat pump system requirements
including all associated energy metering requirements.
The Contractor shall provide all necessary wiring diagrams/control logic diagrams and other
details as may be reasonably requested to enable installation of the works.
4.41
Builders work
The contractor shall be responsible for detailing all builders work requirements necessary
for the integration and co-ordination of the building services installations.
The main contractor shall undertake these works
4.42
Tender Inclusions and Schedules
The contractor shall include within his tender return for the manufacturer’s plant and materials
noted in the specification. The contractor may offer separately alternatives for the employer’s
consideration. Any cost adjustments must be declared.
The contractor shall complete in full the itemised summary of costs form. The successful
contractor may be required to complete a full schedule of rates prior to commencement on
site.
4.43
Programme and Order of Works
The contractor shall undertake his works in consultation with other trades and to the Contract
Administrator’s (CA) TARGET programme and associated detailed order of works.
The programme is available under separate cover from the CA
The centre is to remained operational throughout and personnel and equipment shall be
decanted at strategic time window slots to specific areas of the centre.
The contractor shall minimise service downtimes and plan his works to effectively engineer
new works and retain operational of existing services and systems wherever possible.
The contractor shall produce an interfacing detailed programme/order of works schedule of
his work packages for incorporation into the master programme
The general order of works is as follows.
4.44

Provide external remote temporary ‘Portacabin’ camping toilet/shower facilities.

Relocate camp manager’s accommodation

Undertake new female showers/males showers etc works in toilet/shower wing

Complete visitor centre works (VC)

Decant central Farm house GF/FF personnel into VC

Complete central Farm house GF/FF works.
Temporary Mechanical Services Works
The contractor shall include for the following temporary works in connection with the proposed
programme and order of works.
4.45

Provide a 22mm underground MCW service from the existing camp female toilet/shower
incoming location to the new temporary ‘Portacabin’ toilet/shower facilities.

Relocate the existing central HWS cylinders from the male camper’s toilet/shower boxing
to the adjacent ranger’s workshop due to become the office/laboratory. Re commission to
temporarily service the refurbished female/male shower areas in event that the
ATWHP/HWS cylinder plant is not up and running at this time.

Undertake localised space heating (GSHP & AWTHP) and HWS/CWS/BCWS as required
for the general decants, relocations and new works.

Temporarily retain electric point of use HWS in specific areas until the ATWHP central
HWS system is commissioned and then remove at appropriate time.
Metering of Services
The contractor shall include for the following sub-metering;

MCW feed to CWS storage tanks.

HWS supply to camping areas

Campers ATWHP heating circuit
In addition the contactor shall provide all necessary energy metering of the Air to Water Heat
Pump installation as noted in 4.19
TENDER RETURN FORMS
MECHANICAL BUILDING SERVICES
APPENDICES A & C
MOORLAND CENTRE
EDALE
A.1
MECHANICAL BUILDING SERVICES
MOORLAND CENTRE EDALE
REFURBISHMENT
FORM OF TENDER
Sirs,
I/We the undersigned having visited the site hereby offer to execute and complete the whole of the
Works in accordance with the Tender Conditions, Specification, Conditions of Contract, Drawings and
Letter of Invitation to Tender, to the entire satisfaction of the Employer for the fixed sum of:
£ ........................................excluding VAT.
(in words) ..................................................................................................................................
.........................................................................................................................................................
In addition I/We note the following % schedule for Dayworks
Percentage required for Dayworks:
................% on Materials
................% on Plant
................% on Labour
Signed ......................................................................
Dated ................................................................
Print Name ...............................................................
Position .............................................................
For and on behalf of .........................................................................................................................................
Address ............................................................................................................................................................
..........................................................................................................................................................................
A2
MECHANICAL BUILDING SERVICES
MOORLAND CENTRE EDALE
REFURBISHMENT
SUMMARY OF TENDER
1.
Removal & Modification of Existing Services
£……………………
2
ATWHP & Central Plant
£……………………
3
ATWHP & GSHP Space Heating Systems
£……………………
4
Hot & Cold Water Systems
£……………………
5
Comfort Cooling systems
£……………………
6
Mechanical Ventilation Systems
£……………………
7
Sundry Systems
£……………………
8
Control & BMS Systems
£……………………
9
Testing & Commissioning
£……………………
10
As-Built Information & Demonstrations
£…………………….
________________
TOTAL (excluding VAT) CARRIED FORWARD TO FORM OF TENDER:
In Words:
£
________________
..........................................................................................................................
..........................................................................................................................
Signed:
..........................................................................................................................
Date:..............................For……………………………………………………………………………………
…
The Contractor shall complete all individual itemised costs.
C1
MECHANICAL BUILDING SERVICES
MOORLAND CENTRE EDALE
REFURBISHMENT
ATWHP TECHNICAL APPRAISAL
1.
Base cost of system (Item 2 from appendix A2)
£……………………
2
ATW Heat pump and system ErP rating
……………………
3
ATWHP design output (kW)
……………………
4
System design F/R temperatures
……………………
5
External design temperature
……………………
6
Building heat loss (kW)
……………………
7
ATHW Electrical max consumption (kW)
……………………
8
Buffer vessel storage capacity
……………………
9
HWS Cylinders Storage capacity (Litres)
……………………
10
HWS immersion heater electrical max consumption (kW)
.……………………
11
ATHW SPF (Seasonal Performance Factor)
…………………….
12
(Litres)
Other information ………………………………………………………………………………………
In Words:
..........................................................................................................................
..........................................................................................................................
Signed:
..........................................................................................................................
Date:..............................For……………………………………………………………………………………
…
The Contractor shall complete all itemised sections
EDALE MOORLAND CENTRE
APPENDIX B
MECHANICAL ROOM DATA SHEETS
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Meeting Room
Issue Date: December 15 /01
(Existing exhibition space)
ITEM
Sheet: 00 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
8no…. others transient/hot desking
(2)
Heating Mode
Existing underfloor heating (UFH)
Zones retained as existing
(3)
Mechanical ventilation systems
No
(4)
Minimum occupancy fresh air
Natural infiltration via openable windows
Automatic window control to be modified*
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None
(10)
Electrical requirements ICW
none
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing UFH utilised. Internal design condition 21C
Design contractor to recommission UGH room detector/sensor set points as required.
*Main contractor to modify automatic actuator window opening system control functions
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Interview Room
Issue Date: December 15 /01
(Existing exhibition space)
ITEM
Sheet: 01 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
4no…. others transient/hot desking
(2)
Heating Mode
Existing underfloor heating (UFH)
Zones retained as existing
(3)
Mechanical ventilation systems
Yes. Exhaust system and input system
Each 10ac/h minimum
(4)
Minimum occupancy fresh air
Air transfer fan system input /discharge from
open plan office to atmosphere. See specification
(5)
Direct exhaust air
Yes see above
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None
(10)
Electrical requirements ICW
Yes. ATF systems
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing UFH utilised. Internal design condition 21C
Design contractor to recommission UGH room detector/sensor set points as required.
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Open Plan Office
Issue Date: December15 /01
(Existing exhibition space)
ITEM
Sheet: 02 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
6no…. others transient/hot desking
(2)
Heating Mode
Existing underfloor heating (UFH)
Zones retained as existing
(3)
Mechanical ventilation systems
Yes. Intermittent exhaust air. See below
(4)
Minimum occupancy fresh air
Natural infiltration via openable windows
Automatic window control to be modified*
(5)
Direct exhaust air
Yes. High level wall fan discharge above flat roof
4-6ac/h. With reverse direction/speed control
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
Room controller for wall fan.
(10)
Electrical requirements ICW
Wall fan power supply
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing UFH utilised. Internal design condition 21C
Design contractor to recommission UGH room detector/sensor set points as required.
*Main contractor to modify automatic actuator window opening system control functions
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Visitors WC
Issue Date: December 15 /01
(Existing retail space)
ITEM
Sheet: 03 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
Existing underfloor heating (UFH)
Zones retained as existing
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
NA.
(5)
Direct exhaust air
Room fan with lighting/PIR on/off/overrun control
Door transfer grille DTG as required 8ac/h
(6)
Hot & Cold water
Yes. Complete with basin thermostatic mixing
valve.(TMV ) Mains pressure H&C
(7)
Internal waste systems
WC and basin by others
(8)
Sanitary appliances
WC and basin by others
(9)
Controls
Integral fan control.
(10)
Electrical requirements ICW
Exhaust fan power supply
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
(Point of use pressurised under sink water heater sited in LL boxing for hot water service
REUSED from Farm House Area)
Mains cold water service in existing disabled visitors WC to be utilised/ extended.
Existing UFH utilised. Internal design condition 19C
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Server room
Issue Date: December 15 /01
(Part existing kitchen)
ITEM
Sheet: 04 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
None
(2)
Heating Mode
Yes. See below
(3)
Comfort cooling
Yes. See below
(4)
Minimum occupancy fresh air
Other supply air
None
(5)
Mechanical ventilation systems
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
Condense drainage
(8)
Sanitary appliances
None
(9)
Controls
AC control with BMS interface
(10)
Electrical requirements ICW
External condenser supply
NOTES/SPECIAL REQUIREMENTS:
New comfort cooling heat pump to server room. Condenser sited externally to Architect’s details
Internal design condition 21C
External Design Temperature - Winter:
Design Temperature - Summer:
-4°Cdb Saturated.
29°Cdb, 19°Cwb.
Heat rejection equipment shall be sized to deliver the required cooling with an external ambient temperature of 30°C.
Internal Heating:
Cooling:
Humidity:
32°Cdb +/- 2°C.
32°Cdb +/- 2°C.
40-60% variable.
Humidification is not to be provided.
The cooling systems will be designed to incorporate heat gains from occupancy, equipment, incidental, and solar
gains. The system is to be capable of automatic operation 24 hours per day.
Equipment to be complete with BMS volt free contacts.
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Access Toilet
(Existing store)
Issue Date: December 15 /01
ITEM
Sheet: 05 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New LPHW radiator.
Existing fan radiator to be relocated to adjacent
lobby.(shift approx. 300mm)
F&R distribution mains retained as existing
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
NA.
(5)
Direct exhaust air
Room fan with lighting/PIR on/off/overrun control
Door transfer grille DTG. 8ac/h
(6)
Hot & Cold water
Yes. Complete with basin thermostatic mixing
valve.(TMV ) Mains pressure H&C
(7)
Internal waste systems
WC and basin by others
(8)
Sanitary appliances
WC and basin by others
(9)
Controls
Integral fan control.
(10)
Electrical requirements ICW
Exhaust fan power supply
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
HWS provided via ATW heat pump
MCW supplied from new from campers location
Existing LPHW F&R/ radiator system utilised. Internal design condition 21C @-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location WC1 (Small)
(Existing store)
Issue Date: December 15 /01
ITEM
Sheet: 06 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
Via adjacent lobby radiator
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
NA.
(5)
Direct exhaust air
Room fan with lighting/PIR on/off/overrun control
Door transfer grille DTG 8ac/h
(6)
Hot & Cold water
Yes.
.
(7)
Internal waste systems
WC and basin by others.
(8)
Sanitary appliances
WC and basin by others
(9)
Controls
Integral fan control.
(10)
Electrical requirements ICW
Exhaust fan power supply
(11)
Special requirements
None
NOTES/SPECIAL REQUIREMENTS:
HWS provided via new ATW HP system
MCW extended from existing campers location.
Existing LPHW F&R/ radiator system utilised. Internal design condition 19C @-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location WC2 (Large)
(Existing WC)
Issue Date: December 15 /01
ITEM
Sheet: 07 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New LPHW radiator.
(3)
Mechanical ventilation systems
Yes. Existing exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
NA.
(5)
Direct exhaust air
Existing system utilised
Room fan with lighting/PIR on/off/overrun control
Door transfer grille DTG
(6)
Hot & Cold water
Yes.
(7)
Internal waste systems
WC and basin by others
(8)
Sanitary appliances
WC and basin by others
(9)
Controls
Integral fan control.
(10)
Electrical requirements ICW
Exhaust fan power supply
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
HWS provided via new ATW HP system
MCW supplied from new from campers location
Existing LPHW F&R/ radiator system utilised. Internal design condition 19C @-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Store1
Issue Date: December 15 /01
(Existing small store)
ITEM
Sheet: 08 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
Existing radiator relocated clear of new doorway
to new agreed location in store (19c)
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
None
(5)
Direct exhaust air
None
(6)
Hot & Cold water
Existing MCW/HWS to be removed.
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None
(10)
Electrical requirements ICW
None
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
Existing point of use pressurised water heater currently sited in small store to be relocated /utilised
provide hot water service to exhibition WC. See data sheet 03.
Existing LPHW F&R/ radiator system utilised. Internal design condition 19C@-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Toilet -Camp Manr Issue Date: December 15 /01
(Existing large office)
ITEM
Sheet: 09 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
Via camp manager’s office (19C)
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
NA
(5)
Direct exhaust air
Room fan with lighting/PIR on/off/overrun control
Door transfer grille DTG 8ac/h
(6)
Hot & Cold water
Yes.
(7)
Internal waste systems
WC and basin by others
(8)
Sanitary appliances
WC and basin by others
(9)
Controls
Integral fan control.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
HWS provided via new ATW HP system
MCW supplied from new from campers location
Existing LPHW F&R/ radiator system extended/utilised. Internal design condition 19C@-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Camp Managers
Issue Date: December 15 /01
(Existing large office)
ITEM
Sheet: 10 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
One
(2)
Heating Mode
New LPHW fan radiator sited on external wall l
(21C)
(3)
Mechanical ventilation systems
Ducted exhaust fan 2ac/h
Inlet Located over sink worktop area
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
None
(6)
Hot & Cold water
Yes. Sink
(7)
Internal waste systems
Yes. Sink
(8)
Sanitary appliances
Yes. Sink
(9)
Controls
On/off fan control.
(10)
Electrical requirements ICW
Exhaust fan
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R radiator system extended/utilised. Internal design condition 21C@-5c
HWS provided via new ATW HP system
MCW supplied from new from campers location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Ramped Lobby
Issue Date: December 15 /01
(Existing ramped lobby)
ITEM
Sheet: 11 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
Existing LPHW fan radiator l (21C)
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
None
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None.
(10)
Electrical requirements ICW
None
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R radiator system extended/utilised. Internal design condition 21C@-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Kitchen/Welfare
Issue Date: December 15 /01
(Existing large office)
ITEM
Sheet: 12 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Two & transient
(2)
Heating Mode
New LPHW radiator sited under window (21C)
(3)
Mechanical ventilation systems
Yes. Ducted exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
Ducted fan with on/off control. 4ac/h
Inlet Located over sink worktop area
(6)
Hot & Cold water
Yes. Mains pressure H&C
(7)
Internal waste systems
Sink others
(8)
Sanitary appliances
Sink by others
(9)
Controls
Fan on/off control.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
None Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
HWS provided via new ATE HP
MCW supplied from from campers location
Existing LPHW F&R/ radiator system extended/utilised. Internal design condition 21C @-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Camp Office
Issue Date: December 15 /01
(Existing camp office)
ITEM
Sheet: 13 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New LPHW fan radiator sited on storage partition
wall (21C)
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
None
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None.
(10)
Electrical requirements ICW
None
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
LTHW radiator supplied from ATW HP system. Internal design condition 21C@-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Storage2
Issue Date: December 15 /01
(Existing small office)
ITEM
Sheet: 14 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New LPHW pipe coil sited under external wall
storage cupboard system* (19C)
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via adjacent windows
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None.
(10)
Electrical requirements ICW
None
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R/ radiator system extended/utilised. Radiator removed
Internal design condition 19C@-5c
*Primary heat provide by oversized storage 3 area new ATW HP system radiator
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Storage3 –New build
Issue Date: December 15 /01
ITEM
Sheet: 15 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New LPHW radiator sited under windows.
Sized for storage 2 & 3 (19C)
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via adjacent windows
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None.
(10)
Electrical requirements ICW
None
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
LTHW radiator supplied from ATW HP system. Internal design condition 19C @-5c
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Male Campers
Issue Date: December 15 /01
(Ex .female campers)
ITEM
Sheet: 16 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system. Min 2no panel radiators
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration
(5)
Direct exhaust air
(6)
Hot & Cold water
(7)
Internal waste systems
3no showers /4no basins /3no WC by others
Floor gully
(8)
Sanitary appliances
3no showers /4no basins /3no WC by others
(9)
Controls
Fan controller. Shower coinage/MV valves
(10)
Electrical requirements ICW
Exhaust fan power
Shower coinage/MV valves
(11)
Special requirements
Cold water wash down key bib tap
Roof cowl fan or
Ducted fan with on/off /speed control. 10ac/h
Controller sited in camp managers office
Yes. Complete with shower & basin thermostatic
mixing valve(s).(TMV ) Mains pressure H&C
Boosted water service
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system. 23C shower area/21C Wc’s @ -5c
New air to water (ATWHP) heat pump space hot water system (HWS).
Existing cold water storage tanks utilised for boosted water service
Fan control to incorporate tickle ventilation and peak boost automatic time control
See indicative drawing for mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Female Campers Issue Date: December 15 /01
(Ex. male campers)
ITEM
Sheet: 17 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system. Min 2no panel radiators
(3)
Mechanical ventilation systems
Yes. Ducted Exhaust air system. Minimum 4no
grille terminals. See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration
(5)
Direct exhaust air
(6)
Hot & Cold water
(7)
Internal waste systems
3no showers /4no basins /3no WC by others
Floor gully
(8)
Sanitary appliances
3no showers /4no basins /3no WC by others
(9)
Controls
Fan controller. Shower coinage/MV valves
(10)
Electrical requirements ICW
Exhaust fan power
Shower coinage/MV valves
(11)
Special requirements
Cold water wash down key bib tap
Roof cowl fan or
Ducted fan with on/off /speed control. 10ac/h
Controller sited in camp managers office
Yes. Complete with shower & basin thermostatic
mixing valve(s).(TMV ) Mains pressure H&C
Boosted water service
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system. 23C shower area/21C Wc’s@-5c
New air to water (ATWHP) heat pump space hot water system (HWS).
Existing cold water storage tanks utilised for boosted water service
Fan control to incorporate tickle ventilation and peak boost automatic time control
See indicative drawing for mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Drying Room
(Ex. disabled WC)
Issue Date: December 15 /01
ITEM
Sheet: 18 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system panel radiator (21C) at
high level over appliances
(3)
Mechanical ventilation systems
Yes. Ducted Exhaust air system. Minimum 4no
grille terminals .See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration.
(5)
Direct exhaust air
Room fan with HUMIDISAT on/off/overrun control
10ac/h
(6)
Hot & Cold water
Yes. White goods .Boosted pressure H&C
(7)
Internal waste systems
White goods by others
(8)
Sanitary appliances
White goods by others
(9)
Controls
Humidistat fan control
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
New air to water (ATWHP) heat pump space hot water system (HWS).
Existing cold water storage tanks utilised for boosted water service)
Ladder CP towel rail below coats -TBC
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Access Shower/WC
(Existing laundry)
Issue Date: December 15 /01
ITEM
Sheet: 19 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system panel radiator (23C)
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration.
(5)
Direct exhaust air
Room fan HUMIDISAT on/off/overrun control
10ac/h
(6)
Hot & Cold water
Yes. Complete with shower & basin thermostatic
mixing valves.(TMV ) Boosted pressure H&C
(7)
Internal waste systems
Shower, WC and basin by others
Floor gully
(8)
Sanitary appliances
Shower, WC and basin by others
(9)
Controls
Humidistat fan control.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
Cold water wash down key bib tap
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
New air to water (ATWHP) heat pump space hot water system (HWS).
Existing cold water storage tanks utilised for boosted water service
.
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Pot Wash
(New build)
Issue Date: December 15 /01
ITEM
Sheet: 20 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system panel radiator
Frost protection only (12C)
High level above worktop
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration.
(5)
Direct exhaust air
Room fan with lighting/PIR on/off/overrun control
10ac/h
(6)
Hot & Cold water
Yes.
(7)
Internal waste systems
3no sinks by others. Floor gully
(8)
Sanitary appliances
3no sinks by others
(9)
Controls
Integral fan control.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
New air to water (ATWHP) heat pump space hot water system (HWS).
Existing cold water storage tanks utilised for boosted water service
.
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Laboratory/Offices
(Ex. Ranger’s)
Issue Date: December 15 /01
ITEM
Sheet: 21 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Four
(2)
Heating Mode
New ATWHP system 2no panel radiators (21C)
(3)
Mechanical ventilation systems
Speed controlled on/off
Ducted exhaust fan extracting from sink area
See specification
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via openable glazed screen
windows
(5)
Exhaust air
Ducted on/off extract fan 6ac/h –sink area
(6)
Hot & Cold water
Yes.
(7)
Internal waste systems
1no Sink by others
(8)
Sanitary appliances
1no Sink by others
(9)
Controls
Exhaust fan speed control
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
New air to water (ATWHP) heat pump space hot water system (HWS).
Existing cold water storage tanks utilised for boosted water service
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Workshop
Issue Date: December 15 /01
(Ex. camp site manager store)
ITEM
Sheet: 22 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system panel radiator (19C)
On office wall
(3)
Mechanical ventilation systems
Natural infiltration
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration
(5)
Exhaust air
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
No
(9)
Controls
NA
(10)
Electrical requirements ICW
None
(11)
Special requirements
Low noise NC40
None
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system. (Internal design 19C@-5C)
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Racking
Issue Date: December 15 /01
(Ex. camp site manager WC)
ITEM
Sheet: 23 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
(3)
Mechanical ventilation systems
Exhaust fan extracting from drying area
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration
(5)
Exhaust air
Room fan with HUMIDISAT on/off/overrun control
10ac/h
(6)
Hot & Cold water
Yes. CW bib tap
(7)
Internal waste systems
Yes Gully
(8)
Sanitary appliances
No
(9)
Controls
Exhaust fan/humidistat
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
None
4no 40mm north-south pipeline coil runs under
racking. Full height CP drying ladder in drying
area with electric immersion heater back
up.(21C)
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system. (Internal design 21C@-5C)
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location GF Plant Areas
Issue Date: December 15 /01
(Ex. Camp site manager)
ITEM
Sheet: 24 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system plant
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration
(5)
Exhaust air
None
(6)
Hot & Cold water
MCW incomer
New ATWHP system plant
Boosted water pump set
(7)
Internal waste systems
Floor gully. HP drains/Safety valves
(8)
Sanitary appliances
None
(9)
Controls /BMS interface
New ATWHP system plant
(10)
Electrical requirements ICW
New ATWHP system .BCWS plant
(11)
Special requirements
External heat pump located adjacent racking area
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
New air to water (ATWHP) heat pump space hot water system (HWS).
See indicative drawing for gable end mechanical ventilation ductwork discharge location
Existing cold water storage tanks utilised for boosted water service. SEE SPECIFICATION
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF office1 (6wstations)
(Existing office)
Issue Date: December 15 /01 Sheet: 25 of 32
ITEM
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Six
(2)
Heating Mode
Existing LPHW radiator retained. (21C)
(3)
Mechanical ventilation systems
Yes. Ducted exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
Ducted fan with on/off /speed control. 6ac/h
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
Fan controller.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R/ radiator system extended/utilised
(Internal design 21C@-5C)
Summertime intermittent exhaust air fan system
See indicative drawing for gable end mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF Multi-purpose
(Existing office)
Issue Date: December 15 /01
ITEM
Sheet: 24 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Two
(2)
Heating Mode
Existing LPHW radiator retained. (21C)
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
Ducted fan with on/off /speed control. 6ac/h
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
Fan controller.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R/ radiator system extended/utilised
(Internal design 21C@-5C)
Summertime intermittent exhaust air fan system
See indicative drawing for gable end mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF office 2(1workstations
(Existing office)
Issue Date: December 15 /01 Sheet: 25 of 32
ITEM
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
One
(2)
Heating Mode
Existing LPHW radiator retained. (21C)
(3)
Mechanical ventilation systems
No
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None
(10)
Electrical requirements ICW
None
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R/ radiator system extended/utilised
(Internal design 21C@-5C)
Summertime intermittent exhaust air fan system
See indicative drawing for gable end mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF Office 3(3workstations) Issue Date: December 15 /01 Sheet: 26 of 32
(Existing office)
ITEM
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Four
(2)
Heating Mode
Existing LPHW radiator retained. (21C)
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
Ducted fan with on/off /speed control. 6ac/h
(6)
Hot & Cold water
Remove existing sink and water heater*
(7)
Internal waste systems
Remove
(8)
Sanitary appliances
Remove
(9)
Controls
Fan controller.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
Existing LPHW F&R/ radiator system extended/utilised
(Internal design 21C@-5C)
Summertime intermittent exhaust air fan system
See indicative drawing for gable end mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Toilet-Offices
(Existing WC)
Issue Date: December 15 /01
ITEM
Sheet: 27 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New radiator (21C)
(3)
Mechanical ventilation systems
Yes. Existing exhaust air system.
(4)
Minimum occupancy fresh air
Other supply air
NA
(5)
Direct exhaust air
Existing system utilised.
Room fan with lighting/PIR on/off/overrun control
Door transfer grille DTG
(6)
Hot & Cold water
Yes.
(7)
Internal waste systems
WC and basin by others
(8)
Sanitary appliances
WC and basin by others
(9)
Controls
Integral fan control.(existing)
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
No
.
NOTES/SPECIAL REQUIREMENTS:
LTHW radiator & HWS provided via new ATW HP system (Internal design 19C@-5C)
Boosted water services
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Lobby Toilet-Offices
(Existing lobby
Issue Date: December 15 /01
ITEM
Sheet: 28 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New radiator (21C) under window
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
NA
(5)
Direct exhaust air
None
(6)
Hot & Cold water
None.
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
None
(10)
Electrical requirements ICW
None
(11)
Special requirements
No
.
NOTES/SPECIAL REQUIREMENTS:
LTHW radiator via new ATW HP system
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF office 4(3wtations)
(Existing Rangers office)
Issue Date: December 15 /01 Sheet: 29 of 32
ITEM
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Four
(2)
Heating Mode
New ATWHP system panel radiator (21C)
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
Ducted fan with on/off control. 6ac/h
(6)
Hot & Cold water
None
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
Fan controller.
(10)
Electrical requirements ICW
Exhaust fan power
(11)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
(Internal design 21C@-5C)
Summertime intermittent exhaust air fan system
See indicative drawing for gable end mechanical ventilation ductwork discharge location
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF Printer Issue Date: December 15 /01
(Existing Store)
Sheet: 30 of 32
ITEM
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
New ATWHP system panel radiator (21C)
(3)
Mechanical ventilation systems
Yes. Exhaust air system.
See below
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration via window
(5)
Direct exhaust air
Ducted fan with on/off control. 6ac/h
Activated on high temperature with ORT
(6)
Hot & Cold water
Yes. Complete with sink thermostatic mixing
valve.(TMV ) Mains pressure H&C
(7)
Internal waste systems
None
(8)
Sanitary appliances
None
(9)
Controls
Fan controller.
(10)
Electrical requirements ICW
Exhaust fan power
(10)
Special requirements
Low noise NC35
.
NOTES/SPECIAL REQUIREMENTS:
New air to water (ATWHP) heat pump space heating system.
Internal design condition 21C@ -5C)
Summertime intermittent exhaust air WALL fan
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location FF Tank Areas
(Ex. Tanks)
Issue Date: December 15 /01
ITEM
Sheet: 31 of 32
QUANTITY/REQUIREMENTS
(1)
Notional Design Occupancy
Transient
(2)
Heating Mode
None
(3)
Mechanical ventilation systems
None
(4)
Minimum occupancy fresh air
Other supply air
Natural infiltration
(5)
Exhaust air
None
(6)
Hot & Cold water
MCW incomer
Boosted water pump set storage tanks
(7)
Internal waste systems
Tank overflows
(8)
Sanitary appliances
None
(9)
Controls /BMS interface
None
(10)
Electrical requirements ICW
None
(11)
Special requirements
None
.
NOTES/SPECIAL REQUIREMENTS:
Existing cold water storage tanks modified & utilised for CW boosted water service
2X 2000X 1500X1000 . Approx 2500litres each
See specification
EDALE MOORLAND CENTRE
DERBYSHIRE
MECHANICAL SERVICES
ROOM DATA SHEETS
Location Other Areas
Issue Date: December 15 /01
ITEM
Sheet: 32 of 32
QUANTITY/REQUIREMENTS
(1)
Remodelling/strip outs
Refer to ERS documents t
(2)
Heating Mode
Refer to ERS documents
(3)
Mechanical ventilation systems
Refer to ERS documents
(4)
Hot & Cold water
Refer to ERS documents
(5)
Internal waste systems
Refer to ERS documents
(6)
Sanitary appliances
Refer to ERS documents
(7)
Electrical requirements ICW
Refer to ERS documents
(8)
Other
Refer to ERS documents
(9)
Special requirements
See below
(10)
-
-
NOTES/SPECIAL REQUIREMENTS:
Allow for removing and making good of all redundant hot & cold water services and ventilation
systems to facilitate new building arrangements in;






Former toilet/utility areas
Ranger’s workshop
Laundry room and wash room
Camp managers/adjacent WC
Ground and first floor offices
Circulation areas