Children’s Hospital Colorado
Radiology / Procedure Department Renovation
MECHANICAL SCOPE OF WORK
This is a multi-phased project that takes place in the main Hospital and in the Administrative
Pavilion. All work is in or adjacent to occupied spaces. The scope of work will include the
following:
General
Refer to Architectural Phasing plans.
All construction shall be done to minimize disruption to adjacent occupied spaces. Ventilation
and pressurization standards must be maintained in occupied spaces throughout the project
duration.
Heating, ventilation and air-conditioning for renovated spaces will be design to achieve comfort
control and to comply with current healthcare design standards including:
1. Colorado Department of Public Health and Environment – CDPHE
2. Facility Guideline Institute – FGI Design and Construction of Hospital and Health Care
Facilities
3. Children’s Hospital Colorado – CHC Facility, Construction and Infection Control
Requirements
4. International Code Counsel – ICC
5. National Fire Protection Association – NFPA 101 (2000), NFPA 99 (1999), NFPA 13
(1999)
The Owner has the option of retaining any fixtures and equipment removed during demolition.
Move retained items to storage as directed by the Owner. Dispose of all items not retained by
Owner.
Requirements for the demolition of, or addition to, any portion of air, plumbing or hydronic
systems
The following shall apply to all systems affected by construction activities. Systems include
but are not limited to: HVAC, exhaust, equipment, ductwork, hydronics, coils, filters,
plumbing, temperature controls, life safety controls and pressurization controls.
1. Air quality, quantity and pressure relationships shall comply with the latest,
ANSI/ASHRAE/ASHE Standard 170 requirements.
2. Comply with the facility’s infectious control risk assessment (ICRA) requirements.
3. Existing air quality requirements, air pressurization and other utility requirements for
occupied areas shall be maintained during any renovation or construction.
4. Verify which areas are served by the systems being affected.
5. Take air and/or water balance readings of the systems being affected.
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Children’s Hospital Colorado
Radiology / Procedure Department Renovation
6. If there are occupied spaces being served outside of the renovation area, the following
procedures must be taken:
a. Take air and/or water balance readings as needed to quantify the air / water flows
being delivered to the systems outside the affected area.
b. During demolition, take appropriate measures to maintain the correct air / water flows
to the systems that are remaining.
c. After the completion of demolition, verify that air / water flows are correct.
d. After completing any additions to the system, verify that air / water flows are correct.
7. The contractor is to provide temporary air / water systems as needed to maintain proper
temperature and pressure relationships of spaces required to be occupied during
construction.
8. All temporary air supply systems must utilize final filters that are a minimum of 90%
efficient (MERV 14). Final filters must be downstream of all air supply components.
Fire Protection
All spaces are currently sprinkled. This system will be modified by relocating sprinkler heads to
accommodate the new space and ceiling arrangements. Work is to be done in accordance with
NFPA-13.
Plumbing
New plumbing fixtures will be installed per the new Architectural design.
All new plumbing fixtures shall be per CHC standards and ADA requirements. New fixtures
shall be placed per the architectural floor plan. Typical fixtures indicated below are included as
a representation of the quality anticipated and are not necessarily fixtures that will be specified
on the project.
China Fixtures
1. S-1: Wall Mounted barrier free, porcelain, sink. The sink shall come with carrier,
chrome gooseneck faucet with wrist blade handles.
American Standard Lucerne
0356.028
Chicago Faucet
786-E3
2. S-2: PACU hand sinks will be: Wall Mounted barrier free, porcelain, sink. The sink
shall come with carrier, chrome gooseneck faucet with foot controls.
American Standard Lucerne
0356.028
Chicago Foot Valve
625CP
3. Exposed traps and supplies sinks will be wraped with Pro-Wrap insulation.
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Children’s Hospital Colorado
Radiology / Procedure Department Renovation
4. CSS-1: Clinical Service Sink. Sink shall include a flush valve, foot controlled wand
type bed pan washer, and wrist blade operated service sink fittings.
Representative Clinical Service Sink:
American Standard
9512.999.020
Sloan Flush Valve
Royal 117
Chicago Service Faucet
445-897SRCXKCP
Chicago Foot Valve
625CP
Chicago Bed Pan Washer
809-CP
Stainless Steel Sinks
1. S-3: Hand Washing Sink: 6” deep, 19 x 19 stainless steel sink. Sink shall have
goose neck faucet with wrist blade handles. Sink shall be barrier free and have an
adjacent wall box to serve coffee maker and ice machine.
2. S-4: Nourishment Sink: 7-1/2 ” dep, 22 x 19 stainless steel sink. Sink shall have a
goose neck faucet with wrist blade handles. Sink shall be barrier free and have an
adjacent wall box to serve coffee maker and ice machine.
Representative Stainless Steel Sink:
Elkay
Lustertone
Chicago Faucet
786-E3
3. Exposed traps and supplies sinks will be wraped with Pro-Wrap insulation.
Toilets
1. WC-1: Toilet: Toilets throughout the space shall be wall mounted with flush valve
operation. Toilets shall include wall support and shall be rear outlet. Toilets shall be
ADA accessible.
Representative Toilet:
American Standard
Sloan Flush Valve
Preliminary Plumbing Fixture Count
ROOM TYPE
# OF ROOMS
Radiology Intake
3
Induction
3
Enviro. Services
1
Clean
3
Meds
1
Soiled
2
Ultrasound
3
Toilet
8
PACU
19
New Pre-OP
5
Nourishment
2
Other
3
Afwal
Royal 117
FIXTURES PER ROOM
S-3
S-1
S-1 + Mop Service Basin
S-4
S-3
S-4
S-3
WC-1 + S-1
S-2
S-1
S-4
S-3
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Children’s Hospital Colorado
Radiology / Procedure Department Renovation
Medical Gas Systems
Medical gas piping, outlets, valve boxes and alarms will be modified. All installations will comply
with NFPA 99. Medical gas certifications during each phase of work will be required.
There will be approximately 6 medical gas zones with zone valve boxes and area alarm panels.
All new medical specialties shall be by Beacon Medaes
Hydronic Systems
Heating water piping will be modified to serve new and relocated VAV boxes. There will be
approximately 32 VAV Temperature Control Zones.
Assumptions: 20 new VAV boxes (Titus DESV)
6 existing to remain VAV boxes
6 existing relocated boxes
All hydronic shut-off valves are to be Nibco, full-port ball valve.
Coil assemblies will consist of shut-off valves, strainers, flow measuring devices and pressure
ports. FDI or approved equivalent
Control valves will be provided by the temperature controls contractor.
See discussion under the MRI heading for chilled water scope of work.
MRI
A new 1.5 tesla (1.5T) MRI will be installed in the space currently occupied by the Radiology
Reading Room. An existing 1.5T MRI will be replaced with a 3T MRI.
Chilled water piping will be modified to serve new MRI equipment and two new Equipment
Room AC units. A new, nominal 3 ton, Data Air ceiling mounted CRAC unit will be installed in
the expanded Equipment Room that will serve the new 1.5T MRI. In the Equipment Room for
the new 3T MRI; the existing 3 ton CRAC unit will be removed and a new nominal 5 ton unit will
be installed.
The chilled water supply assembly for the MRI equipment will consist of:
2” supply and return piping
Shut-off valves
Visual flow meter; Hedland EZ-View H617-050
2” pressure gauges on supply and return, 0-160 psi.
2” dial thermometers on supply and return, 25-125 degree F.
6” x 20” filter with differential pressure gauge, drain port and shut-off valves.
The new 1.5T MRI room will be conditioned from the existing VAV supply and return system.
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Children’s Hospital Colorado
Radiology / Procedure Department Renovation
A new exhaust / purge system will be installed. The exhaust / purge system ductwork will be
routed up through an existing shaft to a new exhaust fan in the 10th Floor Penthouse.
MRI Cryovent
The existing MRI cryovents are 10” diameter and route to the west approximately 230 feet to
discharge above the Emergency Department roof. The new 1.5T MRI will require a 12”
insulated cryovent and will discharge in approximately the same area as the existing vents. The
3T MRI will require that the existing an 10” vent be removed and a new 18” vent be installed in
its place. Per the manufacturer, vents will be welded stainless steel or aluminum.
Air Distribution
The air distribution system is comprised of: VAV boxes with hot water heat and ducted return;
general exhaust; and Hot Lab exhaust. Air change rates and pressure relationships will be
maintained in all spaces throughout the project.
Supply, return and exhaust mains will remain.
Refer to the discussion under the Hydronics heading for VAV Box information.
Each room or patient bay will have a supply and return register.
All ceiling devices will be new.
The maximum supply flow per diffuser will be 300 CFM.
The Hot Lab exhaust fans EF-45a and EF-45b will be upsized and relocated. The associated
HEPA filter assembly will be replaced to accommodate the increased air flow.
Two 60 x 20, make-up air supply ducts for the Atrium smoke control system are currently
located above the Rad – Pro Waiting Room. These ducts will be extended to the wall
separating the Waiting Room from the Atrium with a new plenum and linear wall diffusers into
the Atrium.
Test and Balancing
Test and balancing for air and hydronic systems will be required for each phase of work.
Temperature Controls
All temperature controls work will match the Hospitals current standard (Johnson Controls)
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