SFU MECHANICAL SYSTEMS DESIGN CHECKLIST/STANDARDS
General SFU Standards For Building Mechanical Systems:
The goal for Simon Fraser University’s built environment is to provide institutional quality, durable, low
maintenance and simple operations, to maintain occupant comfort control, with the minimum of energy
use and energy cost expenditure. The Goal of a building design team working on any SFU project is to
maximize energy efficiency and comfort, at the lowest life cycle cost, in the most sustainable way.
Durable building envelopes with high quality passive design approaches are required to achieve these
goals.
Building systems must exceed the minimum local Code requirement for energy performance by at least
25%, and must be documented, regardless of whether or not any High Performance, or Sustainable
Building program is being applied. In the City of Vancouver, this means ASHRAE 90.1-2010 Standard,
and in areas outside the City of Vancouver this means ASHRAE 90.1-2004 Standard (to be updated in
the next Provincial Building Code Cycle in 2015). Heat recovery systems shall be used for all air
systems that use more than 2,000 l/s of outdoor air as the minimum fresh air flow, with a minimum
sensible heat recovery efficiency of not less than 60% seasonal efficiency, or 68% peak conditions
efficiency. In keeping with the SFU Carbon Neutrality Plan, the design of any new building or major
renovation must take into account a Carbon Offsets study, as well as an energy use, and energy cost
study to determine best-fit building systems.
Where CO2 Controlled Demand Ventilation systems and controls are used for ventilation air control, the
maximum indoor CO2 setpoint shall be not greater than 850 ppm. Indoor summer air temperature
setpoint shall be 26C unless specifically required otherwise for the particular project. Indoor winter
minimum occupied space air temperature shall be 20C, unless specifically required otherwise for the
particular project. Unoccupied/night setback winter indoor air temperature shall be 17C, unless
specifically required otherwise for the particular project. Summer unoccupied/night setback air
temperature where mechanical cooling is used, shall be 28C, unless specifically required otherwise for
the particular project.
All building heating systems shall be designed to be able to provide an amount of building heating
during normal power failures to maintain freeze-protection to all building systems. This means that
primary and potentially some or all secondary heating pumps will require emergency power, and as
well, a low energy perimeter hydronic heating system is strongly preferred. Using “all-air systems”
where building heating requires air handlers to be operated in a power failure condition is not
acceptable, unless specific written permission is obtained from the SFU Project Manager, and
adequate emergency power is available.
Simon Fraser University has a policy of avoiding mechanical cooling except as required where high
internal heat gains and equipment performance requirements dictate otherwise. In all cases where
mechanical cooling via refrigerant or chilled water systems are deemed necessary, these shall be
discussed and only used with prior written authorization of the SFU Project Manager. All building
ventilation systems shall be designed and controlled to allow 100% fresh air for free cooling and night
pre-cooling/flushing.
All main mechanical rooms shall be sized and arranged for ease of maintenance and access to all
Mechanical Equipment, including duct dampers and access panels, pipeline devices (strainers, check
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valves and flow meters), control valves, and isolation valving, with at least manufacturers required
minimum service clearances. Main air handlers must be provided with full access to allow full width coil
removal as well as knock-down floor crane/lift access (minimum 2 meter wide maintenance paths).
Rooftop equipment is to be avoided wherever possible except for: small unitary roof mounted exhaust
fans; fume exhaust systems; small refrigerant condensing units; cooling towers or other specifically
“designed for outdoors” HVAC equipment that cannot be located indoors. It is strongly preferred that all
main mechanical plant equipment be located in weather protected roof penthouses, or inside interior
mechanical rooms that are on grade level, with at least one outside wall for maintenance access.
Access to mechanical spaces and major equipment above or below the main (ground floor) shall be via
1 meter (42”) minimum width full stair access complete with handrails. Alternative ships ladder style
stair access shall only be acceptable if stair access is cost-prohibitive or other constraints are present,
and specific permission from the SFU Facilities Representative must be provided. Any and all roof
mounted equipment shall be provided with catwalks with handrails, ladders, fall protection, fabricated
metal duct and pipe walk-over steps and service platforms. Where major HVAC Plant equipment is
located on the roof as a last resort, a full protected stair access and vestibule landing to the roof shall
be provided, complete with an exterior canopy to provide a weather protected space around the exterior
door.
SFU requires that a drawing, coordinated with all other trades requiring access behind any drywall
ceiling, for any reason, be submitted to the SFU Project Manager, 4 weeks before the access panel
AND service requiring access, is located and installed. Mechanical and Electrical access shall be
coordinated to minimize the number of access points required. The access panel shall be large enough
to allow easy access, large enough to remove and replace what ever is behind it that can break. It shall
have a face flange and be installed flat, smooth, parallel to the perimeter and be the same finish and
color as the surrounding finishes.
The Design Team shall include and allow for a portion of their fees to provide Post-Occupancy Design
and Operations Support to the SFU Facilities and Operations Teams for all new and major renovations
to buildings. This is in addition to the One Year Warrantee Review allowance.
External References and Resources:
http://www.aibc.ca/pub_resources/environment/enviro_resources.html
http://www.sfu.ca/content/dam/sfu/sac/documents/Towards%20Campus%20Climate%20Neutrality.pdf
http://www.sfu.ca/policies/gazette/general/gp38.html
http://www.sfu.ca/fs/Green-Services/Energy.html
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Specific Requirements:
Where specific items are not listed herein, then the default shall be “best design practice” for
institutional type projects, with equipment and system operation designed and selected for best life
cycle cost, durability, ease of maintenance, and longest possible service life.
Fire Protection System Piping:
o
Minimum standard of acceptance for sprinkler and fire protection systems piping is threaded
Schedule 10 piping. No Press-Fit or other similar mechanically joined pipe fittings are
permitted.
o
Where mechanically clamped and grooved pipe assembly is used, it shall be either Grinnell
Gruv-Lok or Victaulic brand coupling systems.
Sprinkler Systems and Sprinkler Head Types
o
Royal flush type concealed sprinkler heads are to be used in all finished ceiling areas, including
tee-bar suspended ceilings, hard surface ceilings and integrated with feature ceilings.
o
Exposed sprinkler heads in open ceilings in exposed occupancies shall be upright chrome
plated heads unless specific colours are required (eg: blackout painted ceilings- use black
enamelled sprinkler heads).
o
Exposed sprinkler heads in non-occupied areas such as storage rooms, server rooms, and
utility rooms shall be brass finish, upright or pendant, complete with protective cage for damage
protection.
Fire Extinguishers, Cabinets and Accessories
o
In all regularly occupied and public spaces, all fire extinguishers shall be located in fully
recessed cabinets unless impossible to do otherwise.
o
Exposed hanging fire extinguishers shall only be acceptable in Electrical rooms, Mechanical
rooms or Communications/Server Rooms.
Plumbing Piping
o
All domestic hot, cold and recirculation piping shall be Type K hard drawn copper tube, all
soldered.
o
Press-fit, Tee-Drill or other mechanical joining systems for domestic water piping are not
permitted.
o
Certified cross linked polyethylene (PEX) piping is acceptable, and all components, clamping
and joining elements and fittings shall be of the same manufacturer – Uponor Aquapex as a
standard of acceptance. CPVC type plastic domestic water piping is not permitted.
o
All waste drain connections to all toilets shall be minimum 100mm (4”) diameter, and connected
to main sanitary drains by staggered wye connections.
o
Provide “Group” and “Zone” isolation valves on all domestic cold, hot and recirculation water
piping to each washroom group and floor zone for maintenance isolation.
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Plumbing Fixtures
o
All Lavatories and sinks domestic water piping shall be designed such that there is a Maximum
15 second wait time for hot water at the faucet.
o
All plumbing fixtures shall be connected with a braided stainless steel flexible hose connection,
complete with a quarter-turn ball valve stop (Dahl Mini-ball as a standard of acceptance).
o
Trap primers for floor drains shall be installed with at least one union to facilitate servicing.
o
The following plumbing fixtures are strongly preferred where no other constraint or interior
design requirement dictates otherwise:
Lavatories shall be stainless steel vanity type with an infrared faucet and fully adjustable
under-counter concealed actuator and mixing valve, hard wired to local electrical power.
Optional main washroom lavatory configuration can consist of a trough type sink with
individual hard-wired infrared faucets, counter mounted, or wall mounted.
Wall hung toilets are strongly preferred for both tank type (concealed flush tank type) and
flush valve type. Concealed in-wall infrared, hard-wired flush valves shall be used. Where
flush tank toilets are used, they shall be pressure assist type. Dual flush type tank type
toilets are not to be used unless specific requirements dictate otherwise, with specific
permission by SFU Facilities Representative. Floor mounted toilets are to be used only if
budget and/or other constraints require their use, and with specific permission by SFU
Facilities Representative.
All toilets shall be selected based on the latest Maximum Performance Flush Tests, and
shall consistently eliminate a minimum of 900 grams per flush.
Wall hung urinals shall be used, with maximum 1.9 litre (0.5 gallon) per flush fully recessed
concealed hard-wired infrared flushometers. Waterless urinals are not permitted.
General Service Sinks shall be based on commercial quality stainless steel sinks, with bowl
sizes to suit specific installations, complete with a drilled ledge-back to accommodate a
single lever handled gooseneck faucet.
Plumbing Equipment
o
Where gas-fired domestic hot water heaters are used, they shall be selected based on
condensing, high efficiency type, equal to AO Smith Cyclone as a standard of acceptance.
o
Where hot water heat exchanger type domestic water heaters are used, a double-walled heat
exchanger with leak detection shall be used, with a standard of acceptance equal to PVI
Aquaplex tank.
o
Minimum domestic hot water supply temperature shall be not less than 57.5C (136F), and not
more than 63C (146F)
o
All domestic hot water systems shall be equipped with a temperature controlled all bronze pump
and recirculation system, connected and balanced such that a maximum wait time for hot water
at any fixture is less than 15 seconds.
o
All mixing valves for showers, lavatories and other mixing applications shall be certified as an
anti-scald device. Showers must be equipped with a pressure and temperature compensating
mixing valve.
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o
Provide Solar water heating piping rough-ins in all new buildings and major renovations from the
roof to the main domestic hot water heater location, and provide an identified space allowance
for future solar hot water tank and controller system. Minimum solar water heating piping size to
be as per main domestic hot water service pipe leaving the domestic hot water heater.
Motors
o
ALL mechanical motors shall be equipped with twist-lock or other form of quick-connection
electrical power connection.
o
All motors for mechanical pumps and fans over ½ Hp shall be Premium Efficiency Inverter Duty
type.
o
Provide variable frequency drives complete with load and line side protection, complete with
manual power bypass for all variable flow duty motors over 7.5 Hp. (Pumps, fans, process
applications)
Mechanical Identification
o
All piping and ductwork shall be identified with permanent stencilled high contrast labelling, in all
visible locations, on both sides of walls in ceiling spaces and plenums, and at all terminal
connections, from main AHU coils to the smallest reheat coil.
o
Self-adhesive colour banding shall be applied and re-wrapped with clear permanent re-covering
to prevent peeling, in the same frequency as the pipe and duct labelling.
Testing Adjusting and Balancing (TAB)
o
All Building Systems and equipment shall be Tested, Balanced, and Adjusted, with a final draft
of the balancing report required in-hand before any hope of Project Substantial Performance
can be established.
o
The TAB Agent shall include for a minimum of 6 man-days of return visits during seasonal
periods during the first year of Warrantee, for checking, adjusting and verification of system part
load performance and occupant behavioural reviews.
Commissioning
o
SFU has a strong preference to directly hire their own Commissioning Authority to oversee the
Testing, Adjusting, and Balancing (TAB) scope of work, as well as the Contractors’
Commissioning Agent scope. The Design Team on any new project shall coordinate with the
SFU Project Manager to confirm the project scopes of Commissioning, and to assist SFU with
the procurement of a Commissioning Authority.
o
All Building Systems shall be fully commissioned with a minimum standard to comply with CanCSA Standard Z320-11 Standard for Building Commissioning.
o
The Contractors’ Commissioning Agent shall include a minimum of 6 man-days to revisit the
buildings systems during seasonal periods during the first year of Warrantee, for checking,
adjusting, and verification of system part load performance and occupant behavioural reviews.
o
The Commissioning Authority shall include an allowance for 3 full days of staff training on the
Building Systems, to cover all maintenance and operations items as well as controls operations.
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Mechanical System Operations and Maintenance Manuals
o
The Building Maintenance manuals shall be compiled in both hard and soft (electronic copy) for
final turnover to SFU Facilities Representatives. Adobe.pdf or other acceptable format shall be
used for the electronic version of the manual.
o
The Building Maintenance Manuals shall include final and complete copies of the Testing,
Adjusting, and Balancing Report; Commissioning Reports; controls verifications checklists and
minimum 2 week trend logs of selected functions; complete controls points lists and systems
architecture diagram with as-built adjustments to show system network, panels locations and
terminal controls locations with labels. Project Substantial Performance and release of
Schedule C Letters of Assurance from the Mechanical Engineer shall not occur unless an
acceptably complete copy of the above information and the Maintenance Manuals and Record
Drawings are in-hand for review.
o
A mandatory requirement of the Maintenance Manuals is a summary list of key maintenance
routines needed and/or service contracts recommended for the installed equipment. Typically
these are listed in each equipment section, but a single comprehensive overall summary list of
periodic and preventative maintenance requirements and tasks is required.
Record Drawings
o
Building Record drawings must be verified complete and accurate by the Building Designers
prior to turnover to SFU Facilities Representatives. It is SFU’s strong preference to have the
Design Team take the Contractor’s Mark-ups and produce the Record Drawings, once the
accuracy has been verified. Design Teams must provide a separate fee in their proposals for
the Record Drawing work, preferably in the form of an hourly to an upset maximum, or a fixed
fee as required for the particular project.
o
Electronic REVIT/BIM model files that have been verified to reflect as-built conditions shall be
turned over to SFU Facilities Representatives for their use to operate and maintain the building.
AutoCAD format plans may also be required for other facilities maintenance operations, to be
verified with the SFU Project Manager prior to turn-over of the REVIT/BIM Model files.
Duct Insulation
o
All supply air, return air, exhaust air and outdoor air ducts shall be insulated to the minimum
standards of ASHRAE 90.1-2010 based on the temperature differential between the ducted air
and the ambient surroundings.
o
All exposed rectangular ductwork that requires insulation shall be clad with rigid board type
insulation with all joints and seams sealed with permanent type materials.
o
All exposed round ducts shall be insulated with pre-formed rigid insulation with mitred sections
at elbows and fittings to match duct construction.
o
Flexible insulation blanket style insulation is acceptable in concealed areas and other nonoccupied service areas where ducts are more than 3M above the floor.
o
Where any and all insulated ducts are within 3M of the floor, in all exposed locations, the duct
insulation shall be re-covered with canvas, sealed and painted with white paint.
o
All exposed outdoor ductwork where external insulation is required/used shall be re-covered
with 5 mil aluminum sheet, with all end to end seams overlapped and sealed, and all
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longitudinal seams placed along the bottom of the duct. All seams shall be caulked and sealed
with at least two layers of sealant.
Equipment Insulation
o
All tanks, pump bodies, strainers, valve bodies, main pipeline expansion joints, water meters,
heat exchangers shall be insulated to the minimum standards of ASHRAE 90.1-2010 based on
the temperature differential between the equipment operating temperature and the ambient
surroundings.
o
All exposed equipment that requires insulation shall be clad with rigid board type insulation with
all joints and seams sealed with permanent type materials where the equipment is suitable for
that application. Otherwise use vinyl-jacketted flexible insulation complete with Velcro seams
and fastening around irregularly shaped equipment.
o
Where any and all insulated fixed tanks, heat exchangers and equipment with rigid board type
insulation are within 3 m of the floor, in all exposed locations, the insulation shall be re-covered
with canvas, sealed and painted with white paint.
Piping Insulation
o
All piping shall be insulated to the minimum standards of ASHRAE 90.1-2010 based on the
temperature differential between the equipment operating temperature and the ambient
surroundings.
o
All “cold” piping where the temperature may be below the ambient dewpoint shall be sealed
completely to insure a high quality vapour barrier integrity. This shall include all cut ends,
beveled ends, valve-handle cut-outs.
o
Where any and all insulated pies are within 3M of the floor, in all exposed locations, the
insulation shall be re-covered with canvas, sealed and painted with white paint.
o
All exposed outdoor piping where external insulation is required/used shall be re-covered with 5
mil aluminum sheet, with all end to end seams overlapped and sealed, and all longitudinal
seams placed along the bottom of the pipe. All seams shall be caulked and sealed with at least
two layers of sealant.
o
All ball valve handles on all insulated pipes shall have sealed bevelled cut-outs to allow full
valve handle travel without binding on the insulation.
Hydronic Piping
o
All hydronic system piping shall be Schedule 40 black iron, threaded connections and fittings up
to 65mm (2-1/2 inch) diameter, and all welded with flanged connections and fittings for all piping
75mm (3 inches) and larger.
o
Mechanically joined piping systems such as Press-fit and Tee-Drill are not permitted on any
hydronic systems.
o
No mechanical joint systems shall be used on any heating water systems (no Victaulic or GruvLok pipe joining shall be used for any hydronic heating systems)
o
Cross-linked polyethylene piping (PEXa Engle method only)) may be used only for in-slab
radiant heating systems and for pre-insulated buried PEX piping up to 75mm (3”) diameter. All
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PEXa piping, fittings, connections, manifolds, and accessories shall be of the same
manufacturer.
o
Unions or flanged connections shall be used at all equipment connections, with piping offsets
and isolation valve locations to allow equipment access and removal without interference with
main connecting piping.
o
All strainers, check valves, control valves, hydronic meters, and main isolation valves shall be
located in clear, accessible locations to allow full servicing and removal. Where these pipeline
devices cannot be located within 2.5M of the floor, a clear path and floor space for stepladder
access shall be provided.
o
In addition to terminal element isolation valves, provide zone isolation valves at each floor of
riser system branch connections, and at large floor are main branch distribution piping to
minimize hydronic system drainage and other zones’ disruption.
HVAC Pumps
o
Base mounted main hydronic circulating pumps are strongly preferred.
o
Vertical In-line close coupled centrifugal pumps may be acceptable provided isolation valving,
flanges, and inlet and outlet piping is arranged for minimum flow restriction and fully accessible
pumps seal access and pump and motor body removal and replacement. Triple duty valves
and suction guides shall not be used except with prior written acceptance by SFU Maintenance
Staff.
o
All primary building heating pumps shall be selected with two pumps for duty/standby operation,
with controls to enable equalized run-time. At least one heating pump shall be connected to
emergency power for normal power failure operation. Heating system shall be designed for
building temperature maintenance and freeze protection during normal power failures.
Chemical Treatment for Hydronic Systems
o
Hydronic system chemical treatment for the SFU Main Burnaby Campus and for Downtown
Campus Buildings shall be IPAC Chemicals or Pace Chemicals, as directed by the SFU
Facilities Maintenance Representative for the particular Project where it is an addition or major
renovation of an existing building. All New Buildings shall be specified to be based on IPAC
Chemical Treatment systems.
o
Hydronic chemical treatment for the Surrey Central Campus is provided by the Base Building
Landlord.
Piping Expansion Compensation and Vibration Isolation
o
All hydronic piping expansion compensators for heating and cooling piping that is 65mm (2-1/2”)
diameter and larger shall be equal to lined stainless steel bellows type, minimum 150mm (6”)
long, and as needed for the expansion requirements specific to the project.
o
All hydronic piping expansion compensators for heating and cooling piping smaller than 65mm
(2-1/2”) diameter, shall be bellows type with stainless steel braid, minimum 100mm (4”) long,
and as required for specific project conditions.
SFU Mechanical Systems Standards
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o
All flexible hydronic heating and cooling pipe connectors to all mechanical equipment (fan-coils,
heat pumps, air unit coils, etc.) shall be a minimum of 300mm (12”) long, and a maximum of
450mm (18”) long, complete with union or flanged connections for servicing.
Gauges and Meters
o
All pressure gauges provided at hydronic pump stations and at all main AHU coil supply and
return connections and other main system points shall be minimum 75mm (3”) diameter,
selected for the pressure range as required to have the working pressure in the middle of the
gauge range.
o
All temperature gauges shall be 75mm (3”) diameter dial type, selected for the temperature
range as required to have the working temperature in the middle of the gauge range. Stem type
thermometers are to be avoided. For every dial type temperature gauge, provide a
corresponding electronic DDC temperature sensor in a thermowell.
o
Provide utility grade energy and flow meters as follows, for all new buildings and major
renovations:
Energy to domestic hot water heating
Cooling plant/equipment energy
Total heating system energy
Ventilation air heating and cooling energy
Lighting energy
Plug loads power energy.
Main building gas, campus district energy water, potable water, and electrical meters must
be connected and trended at the Building DDC workstation.
o
Hydronic Energy meters for building systems energy metering shall be equal to Onicon,
Danfoss, Kalstrup MultiCal. Meters shall read directly in energy units and shall not
require conversion - they shall be configured to give a Pulse signal for monitoring, and directly
link to ESC Delta or Andover Campus DDC controls.
o
Main building district heating energy meters shall be as follows: New Installations at New
Buildings – as per above hydronic meters, installed in main HWS/HWR piping to the building
from the SFU DES system. Retro-fit installations for older buildings where an existing campus
DES connection exists – provide Dynasonics Ultrasonic strap on meters, meters shall read
directly in energy units and shall not require conversion - they shall be configured to give a
Pulse signal for monitoring, and directly link to ESC Delta or Andover Campus DDC controls.
Hydronic Specialties
o
All chilled water systems that use an outdoor air cooled chiller, or air cooled heat pump chiller,
shall be equipped with a minimum 20% propylene glycol solution equal to Dowfrost, complete
with inhibitors. Maximum glycol solution shall not exceed 25%. All glycol systems must insure
that pumps, and terminal equipment has been selected for the de-rating required, and all drain
valves labelled with “Glycol-Drain and Recover”.
Ductwork – General
o
All main ductwork from the AHU to within 15 meters of the furthest branch to an air terminal
shall be pressure tested and double-sealed. Pinhole leaks, and seam leaks are unacceptable,
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and shall be treated as a deficiency until all whistling, hums, and audible duct leaks have been
sealed.
o
All ductwork shall be designed and fabricated to the latest SMACNA Standards, and sized to
reduce air turbulence, and air friction to a minimum. Consult with the SFU Project Manager for
specific project air velocity and acoustic requirements to be used for all spaces within the
Project Area.
o
Provide main branch balancing dampers as well as air terminal branch dampers in all supply
and ducted return/exhaust air systems. All balancing dampers, regardless of whether the duct
is insulated or not, shall be mounted on stand-off bridges with lockable handles.
o
Provide as large as possible access doors and panels on all ductwork for all air valves (VAV
Boxes), duct mounted coils, dampers and damper motors, filters, inlet side of turning vanes at
elbows, sensors and any other device that requires servicing.
HVAC Fans General
o
All HVAC fans shall be equipped with easily accessed lubrication points and grease
connections. Where fans and bearings are located inside an Air Unit casing, extension tubes to
labelled grease connections located on the outside of fan guards and protective enclosures
shall be provided.
Air Terminals and Louvres
o
All exterior air intake louvers shall be equipped with a 25mm (1 inch) channel frame to allow a
slide-in temporary insect screen to be used for cottonwood season and any other local seasonal
airborne large particulates.
o
All Louvres shall be equipped with a 12mmx12mm (1/2 inch x ½ inch) bird-screen on the rear
face, including louvers that are part of built-up or packaged Air Handling Units.
o
All exterior Louvres for any type of ventilation service shall be specified as custom colour baked
enamel to suit Architectural aesthetics, unless directed otherwise.
o
All exterior Louvres shall be specified to be complete with exterior face flange with mounting to
suit the exterior wall, unless otherwise required to suit the Wall construction and Architectural
requirements. All Louvres and the rough openings in the walls shall be completely sealed on
the exterior perimeter of the opening, as well as sealed and insulated around the interior of the
wall opening.
o
Air terminals shall be selected for maximum throw and mixing with minimum generated noise for
overhead fully mixed air distribution systems, specific type to suit Architectural Aesthetics.
o
Air terminals fro low level displacement style sir systems shall be selected for a maximum 0.40
m/s (80 fpm) face velocity, at a supply air temperature of not less than 17C (63F).
o
All in-floor air terminals shall be selected as the heaviest duty extruded aluminum linear style,
with pencil-proof grille spacing.
o
Do not use neck or face balancing dampers except as a last resort for all air terminals. It is
strongly preferred that duct branch dampers be used where possible to effect air terminal
balancing, and keep air terminal necks clear for minimized air noise potential.
o
Provide general exhaust air system and extract grilles for all printers, photocopiers, microwaves,
coffee stations, and other potential indoor air pollution generating equipment. Extract grilles and
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local extract air quantities shall be placed directly over or on the wall beside any equipment for
the most direct exhaust extraction possible.
o
Where floor grilles are used – they shall be based on heavy duty linear aluminum mandrel type
grilles, with 6mm (1/4 inch) bar spacing Maximum. Where underfloor air supply systems are
used, round diffusers equal to EH Price ARFID and ARFHD aluminum grilles with DBV type
adjustable air balancing buckets.
Air Filters
o
All air filters in air handling equipment with a supply air flow capacity of up to 1,400 l/s (3,000
cfm) shall be equipped with single stage MERV-8 rated air filters, in standard panel sizes.
o
All air filters in air handling equipment with a supply air flow capacity of over 1,400 l/s (3,000
cfm) shall be equipped with two stage filtration consisting of MERV-8 rated air pre-filters and
MERV-13 rated final filters, in standard panel sizes.
Hydronic Heat Exchangers
o
Simon Fraser University Main Campus on Burnaby Mountain is served by a high temperature
district heating system (DES) from a main gas-fired boiler plant. Where connections are made
to the DES to provide heating in a building, a shell and tube heat exchanger shall be used,
selected for the closest possible approach from the DES Temperature to the desired building
heating system design temperature.
o
Heat exchangers within a building system for hydronic heating and cooling systems purposes
are strongly preferred to be shell and tube type. Where plate type heat exchangers are required
for specific purposes (very close temperature approaches/gradients), they shall be serviceable
plate and frame type. Brazed fixed type plate heat exchangers shall only be used with prior
written acceptance by the SFU Facilities Maintenance Representative.
o
Domestic Hot Water heat exchangers shall be double-walled type with visible leak detection.
Refrigeration Equipment (Chillers, Condensing Units, Split Systems, etc.)
o
Mechanical Cooling is only to be used with prior discussion and written acceptance by the SFU
Project Manager.
o
Where water chilling equipment is required (water to water heat pumps, air to water heat
pumps, water cooled chillers/cooling towers), such equipment is strongly preferred to be located
in an indoor/protected location for servicing access. Where air-cooled equipment is used, it
shall be located in an accessible roof area with adequate airflow and maintenance circulation
space around it.
o
Split system local refrigerant fan-coil/condensing unit sets shall be used for 24/7 cooling
applications for small computer rooms, server rooms, communications rooms and similar
equipment conditioning applications. Outdoor units shall be located as close as possible to a
roof access point and where multiple units are used, the outdoor units shall be grouped in a
common access area. In all cases the most environmentally friendly refrigerant shall be used.
SFU Mechanical Systems Standards
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Controls Systems - General
o
All Main SFU Burnaby Campus buildings shall be equipped with a DDC controls system based
on either ESC Delta or Andover (Houle Controls), complete with network connection to the SFU
central energy control head end computer network.
o
All SFU Vancouver Campus facilities shall be equipped with either Modern Systems
Management DDC Systems or Control Solutions DDC Systems.
o
All SFU Surrey Central City facilities shall be equipped with an ESC Delta (Energrated) DDC
controls system.
o
All SFU building DDC systems at all campuses shall be equipped with secured IP protocol and
connected via the SFU Communications network and be accessible via internet, with suitable
levels of secure access.
o
All new buildings connected to the SFU Burnaby Campus main heating plant central heating
water distribution system shall be equipped with industrial utility grade energy meters on the
main supply/return pipes at the heating mains connections. Meters shall be located in a main
accessible mechanical room.
o
Energy sub-metering shall be applied as follows: domestic hot water total energy consumption;
total domestic water consumption; total domestic hot water consumption; total cooling energy
used; total heating energy used for ventilation air heating; lighting energy; plug loads energy.
Refer to the Gauges and Meters section of this document for meter types.
o
Controls sequences of operation must be specified in a high level of detail with plain English
overview narratives to describe the general operations and goals, as well as detailed system by
system operation, down to individual terminal equipment control operation.
o
Room temperature and CO2 sensors shall be located and detailed with respect to room
furniture layout, and manufacturers installation instructions. All room sensors shall be equipped
with a programmed system override button for after hours operation/local zone systems
operation, an LED digital room temperature display, and a programmed +/- occupant
temperature adjustment capability limited to +/- 2C around a room setpoint of 24C unless
otherwise directed by the SFU Project Manager and room program and use.
o
Integrated room occupancy controls with the lighting is strongly desired, such that a room
occupancy sensor can turn off the lights, isolate/shut off the local ventilation air supply and set
back the room temperature when the room is unoccupied, even while the main building systems
schedule is in a general “occupied” mode.
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SPECIAL REQUIREMENTS FOR SIMON FRASER UNIVERSITY SURREY
CENTRAL CITY CAMPUS RENOVATIONS:
General: The SFU Surrey Central City Campus is equipped with an Underfloor Air Distribution System,
supplied from central AHU’s managed and operated by a Base Building Landlord. The Controls
System is an ESC Delta Controls system with a stand-alone operation set up for SFU Facilities Control,
but maintained on and overall basis by the base building Landlord Operations Office.
Warm-up Checklist: Base Building Systems items required to be complete, tested, and proven before
SFU Space Improvements begin and end at Surrey Central City Facilities :
Confirm floor diffuser edge and insert detail with respect to floor finishes and rolling castors on
chairs, desks and tables.
Where floor grilles are used – they shall be based on heavy duty linear aluminum mandrel type
grilles, with 6mm (1/4 inch) bar spacing Maximum. Where underfloor air supply systems are
used, round diffusers equal to EH Price ARFID and ARFHD aluminum grilles with DBV type
adjustable air balancing buckets.
Floor space plenums must be completely sealed at all perimeter edges, core interfaces, and
column to raised floor interfaces.
Review and confirm air distribution to all points of the floor, balancing report must show plenum
pressure and floor outlet meeting design at furthest point from supply fan. Design criteria=12.5
pa min. to 50 pa max. (0.05 to 0.2 ins WG) @ 40 l/s per round floor diffuser, with supply air
temperature=63F (17.2C)
Underfloor plenum is completely cleaned, dust free, and concrete has been sealed with low
VOC sealer prior to raised floor installation.
All in-floor fan-coils to have coil headers completely insulated and sealed on both coils.
Test and verify operation of in-floor water sensors at fan-coil locations. Insure that main
domestic water supply, as well as chilled and heating water mains supplying the local floor area
are equipped with automatic shutoff valves for leak detection and flood control, and annunciate
an alarm at the DDC system.
Test and verify floor plenum water sensors at all plumbing locations for flood/leak alarm.
Provide automatic main water feed isolation control valve and alarm at the local DDC system for
a water leak/flood detection incident.
Confirm adequate in-floor fan-coil distribution piping expansion/contraction and flexible
connections are allowing sufficient pipe movement and piping is not under stress.
Provide copies of in-floor pipe pressure test sign-off sheets.
Confirm all in-floor pipe insulation is completely insulated including valves, fittings and around
support clamps. It is especially critical that the vapour barrier around the chilled water piping is
intact, and fully sealed.
All new motor driven equipment (fans, fan-coils) to be equipped with quick-connect electrical
power connection (plug or twist lock)
Confirm return air balance, return air velocities and noise levels at main fans and supply/return
ducts serving the SFU spaces.
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Confirm interior ambient air pressure relative to outdoors, not to exceed 0.05 ins WC (12.4 pa)
at all AHU modes (min. OA to max OA).
Confirm a deep seal floor plenum drain(s) with primed trap seal is present in the raised floor
plenum area for flood control and house-keeping, minimum 100mm diameter full flow drain.
Confirm stock and numbers of spare floor diffusers available for each area.
Signed-off air and water balancing reports for all base building systems in the areas of SFU
Occupancy. Must contain maximum and minimum fresh air damper position performance and
outdoor air quantity limits for maximum winter fresh air capability at main supply air units serving
SFU Spaces.
Signed off commissioning reports and checklists for base building systems in the area of SFU
Occupancy, including seismic restraints and vibration isolation elements.
Signed off controls set-up and checklists for base building systems in the area of SFU
Occupancy
Provide signed off fire and life safety for base building systems in the regions of the SFU Tenant
Areas: sprinklers, smoke control, fire alarm.
Clean air filters installed in all existing and new air handling units, including base building
equipment, and floor plenum fan-coils serving SFU spaces.
SPECIAL REQUIREMENTS FOR SIMON FRASER UNIVERSITY VANCOUVER
CAMPUS PROJECTS:
The Simon Fraser University Downtown Vancouver Campus is managed from the SFU Vancouver
Operations Office located in the HarbourCentre Building. Facilities Operation and Maintenance
Oversight on all Downtown SFU Vancouver Facilities is provided from this office. The SFU Vancouver
Campus Buildings are generally maintained by outside Contractors under service contracts, including
the Controls Systems.
Capital Projects for SFU Vancouver Campus Buildings are managed from the Simon Fraser University
Facilities Planning Office at the main campus in Burnaby. Capital Improvements and small projects for
the SFU Vancouver Campus buildings are managed by the SFU Vancouver Campus Operations office.
Current SFU Vancouver Facilities are connected to Central Heat Distribution (CHDL) district steam
energy services for building heating and domestic hot water heating. In keeping with the SFU Carbon
Neutrality Plan, the design of any new building or major renovation must take into account a Carbon
Offsets study, as well as an energy use, and energy cost study to determine if connections to the CHDL
Steam System versus a standalone alternate heating plant in the building will satisfy the operating cost,
capital cost, and carbon reduction goals for the Project.
Controls Systems for the SFU Vancouver Buildings shall be specified as Control Solutions (Reliable
Controls product with Automated Logic add-on), and Modern Systems (Siebe DDC products). All
building automation and controls systems shall be connected to the SFU Computer network through a
firewalls, secured network IP Connection for access through the SFU IT network system, and have
Internet access capability with secured password access for outside Contractor and SFU Vancouver
Operations Representatives use.
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