valves, oil separators, refrigerant receivers, etc., shall be shown clearly
on the floor plans and schematic layout drawings.
2.12.7 REFRIGERATION SYSTEMS FOR SURGERY SUITES
2.12.7.1 AREAS SERVED: Separate refrigeration system(s) shall be provided to
serve surgery suite, intensive care units, and recovery rooms.
2.12.7.2 SYSTEM TYPE: To facilitate easy start in mild weather, the dedicated
chiller(s) serving the surgery suite and the associated areas shall be air
cooled water chiller with dedicated chilled water distribution piping and
pumps. The chilled water system for surgery area shall be cross connected to
the central chilled water plant, if existing.
2.12.7.3 SYSTEM CAPACITY/OPERATION:
(a) Capacity: The chiller(s) capacity shall match the cooling load required
for the surgery suite and the associated areas. Two chillers of equal
capacity with chilled water at about 5 degrees C (42 degrees F) shall be
provided. However, with a central chilled water plant, in service, a single
chiller with multiple compressors can be used.
(b) Operation: The air-cooled chillers shall be the prime source of cooling
for the surgery suite because it requires lower space temperatures. The
surgery chiller and the air handling unit operate at temperatures, typically
5 degrees C (42 degrees F) or below compared to normally 6.57.0 degrees C
(44-45 degrees F) temperatures associated with a central chilled water plant.
2.12.8 REFRIGERATION SYSTEMS FOR ANIMAL RESEARCH AREAS
2.12.8.1 AREAS SERVED: Separate refrigeration system(s) shall be provided to
serve animal research areas including holding areas, surgical facilities,
laboratories, and associated support areas.
2.12.8.2 SYSTEM TYPE: Same as 2.12.7.2 above.
2.12.8.3 SYSTEM CAPACITY/OPERATION: Same as 2.12.7.3 above.
2.12.9 REFRIGERATION SYSTEMS FOR SPECIALTY AREAS
2.12.9.1 GENERAL: Dedicated refrigeration systems are required for the
following areas. See Chapter 3 for specific details. The refrigeration
systems can be DX or chilled water type, preferably air-cooled and shall be
cross-connected to the central chilled water plant, if feasible.
2.12.9.1.1 LINEAR ACCELERATORS: See Article 3.15.
Article 3.17.
2.12.9.1.3 TELEPHONE EQUIPMENT ROOMS: See Article 4.8.
2.12.9.1.4 ELEVATOR MACHINE ROOMS: See Article 2.10.5.
2.12.9.1.5 MEDICAL MEDIA SERVICE (MMS): See Article 3.16.
HVAC DESIGN MANUAL
2-45
HVAC SYSTEMS AND EQUIPMENT
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