JULY 2005
SOLICITATION FOR OFFERS
OUTPATIENT CLINIC
SFO NO. V101-183R-xxx-xxx-xx
[INSERT LOCATION OF FACILITY]
The physical location of the cooling unit should be coordinated with the magnetic field line and should
be away from the 10 gauss (unit for magnetic field intensity) line.
The supply air entering the computer room shall be at 65 degrees F dry-bulb temperature and 60
percent RH maximum.
6.5.7.6.2 MRI Cooling Units:
To cool the MRI and control equipment, dedicated, closed-loop water-cooling equipment shall be provided.
The equipment shall be comprised of a dedicated air-cooled chiller, circulating pump, and interconnecting
piping.
The pH level, total solid content, total hardness, and alkalinity of the circulating water shall be within
the limits prescribed by the equipment manufacturer.
The limits of the inlet water temperature, pressure drop through the equipment, and maximum inlet
water pressure shall be in accordance with the equipment manufacturer' recommendations.
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The water piping design shall meet the "Radio Frequency" requirements. The piping laid in walls and
chases shall be provided with clearly marked and identified access doors for servicing valves and
other piping specialties.
While the environmental and computer air handling units shall be connected to the building central
chilled water system, for back-up, the capacity of the dedicated air-cooled water chiller shall also
include the cooling loads of the environmental air handling unit and computer room cooling unit. The
selection of the leaving chilled water temperature shall, therefore, be such that the requirements of
entering water temperature to the water cooled equipment and the supply air temperatures of the air
cooling units are simultaneously satisfied.
6.5.7.6.3 Alarms:
Ambient Temperature Alarm: Provide a high temperature alarm local and at the ECC, if available, for the
temperature sensor. The sensor is to be located near the top rear of the computer cabinets. The sensor
will be supplied by the MRI equipment manufacturer.
Water Alarm: Provide water sensor alarms (local and the ECC, if available) on the raised deck and under
the raised flooring. It shall close and sound the alarm upon detection of moisture water supply to the
equipment.
6.5.7.6.4 Gas Storage:
The storage rooms housing helium and nitrogen cylinders shall be ventilated in accordance with the
criteria in NFPA 30, Flammable and Combustible Liquids Code, and NFPA 45, Fire Protection for
Laboratories Using Chemicals.
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6.6 PLUMBING:
6.6.1
WATER DISTRIBUTION SYSTEMS:
Size the piping for the hot and cold water systems not to exceed the maximum velocity allowed by the
National Standard Plumbing Code. Provide necessary water hammer arrestors in accordance with ASSE
1010 for sealed wall installations without an access panel. Size and locate arrestors per Plumbing
Drainage Institute (PDI) requirements.
Provide wall hydrants a maximum of 200 feet apart, at loading docks and at building entrances, with a
minimum of one wall hydrant on each exterior wall.
Maintain a minimum pressure of 35 psi at the plumbing fixtures on top floor.
Part I: Basic Solicitation Requirements Page 103 of 169
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