APC CM Series User Manual download pdf (Page 35)

30 APC NetworkAIR CM Series: Guide Specifications

Air distribution and air pattern. The evaporator airflow pattern shall be

________ (spot-cooler or ducted). The spot-cooler configuration shall be

supplied with a 2’ × 4’ (610 mm × 1220 mm) supply/return air filter

assembly. The filter assembly shall include one-way supply and return air

grilles with a 20" × 20" × 1" (508 mm × 508 mm × 25 mm) 30% efficient

ASHRAE 52.1-92 return air filter. The ducted configuration shall be supplied

with 1" (25 mm) duct flanges on the supply and return air openings. A 20" ×

20" × 1" (508 mm × 508 mm × 25 mm) 30% efficient ASHRAE 52.1-92

return air filter shall be integrally mounted on all CM15 throughCM40

systems. Two 16" × 25" × 1" (406 mm × 635 mm × 25 mm) 30% efficient

ASHRAE 52.1-92 return air filters shall be integrally mounted on all CM50

through CM65 systems. The air distribution system for the CM15 through

CM40 shall be comprised of a direct-drive fan motor with a double-inlet

blower and permanently sealed ball-bearing type blower bearings. The air

distribution system for the CM50 through CM65 shall be comprised of a belt

drive fan motor with a double-inlet blower and permanently sealed ball-

bearing type blower bearings.

High efficiency filter (ducted applications only). A _______% efficient

_______ in. (_______ mm) ASHRAE 52.1-92 return air filter shall be

supplied in-lieu-of the standard filter.

Bi-metallic thermostat/humidity controls. The system shall be supplied

with a wall-mounted bi-metallic thermostat for temperature control. The

thermostat shall have an external lever and scale for temperature setting.

When equipped with a humidifier and/or reheat, a hair-element humidistat

and/or dehumidistat shall be supplied to control humidification and/or

dehumidification.

Compressor short-cycle controls. The control system shall prevent

excessive compressor cycling.

Remote on/off control. A terminal board jumper connection shall be

provided for remote on/off control.

Direct Expansion

Systems

DX (Direct Expansion) coil. The evaporator coil shall be constructed of

copper tubes and aluminum fins and be mounted in a stainless steel

condensate drain pan. The drain pan shall be equipped with dual condensate

overflow safety switches. The coil shall have a minimum face area of

_______ ft² (______ m²) and be ______ rows deep. The maximum coil face

velocity shall be _______ ft/m (_______ m/s) at ______ CFM (_______ L/s).

Air-cooled with close-coupled or remote indoor centrifugal con-

denser.

The evaporator section and condenser section shall be factory

assembled and ship as one-piece. The system shall be pre-charged with

refrigerant an require no inter-connecting piping or brazing. The refrigeration

system shall consist of hermetic compressor with vibration isolators, high

pressure switch, filter/drier, sight glass, and externally equalized expansion

valve. The condenser section shall be equipped with 1" (25mm) duct flanges

for inlet and discharge ducting. The coil shall be constructed of copper tubes

and aluminum fins. The centrifugal condenser fan shall deliver ______ CFM

(______ L/S) at ______ in. wg. (______ Pa). For the CM15 through CM40,

the condenser fan shall cycle from high speed to low speed based on entering

condenser air temperature. The condenser section shall be sized to provide

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APC CM Series User Manual Page 35

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