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APC NetworkAIR CM Series: Standard Features 7

Standard Features

Thermostat

controller

The unit control provides two separate heat and cool temperature setpoints

with a minimum 2° F spacing between them. The controller shall activate

heating or cooling functions automatically in regards to setpoint versus

measured conditions. The control setpoint range shall be 60° F to 85°F. Units

requiring humidity control have separate humidity and dehumidity setpoints

with a minimum 4% RH spacing between them. The controller activates

humidifying or dehumidifying cycles as a function of setpoint versus

measured return air conditions.The humidity setpoint range shall be 20% RH

or 80% RH. As an option, the control shall also allow daily or 5 day/2 day

program scheduling at a maximum of 2 programs per day.

Overall cabinet The frame is constructed of heavy gauge steel for maximum strength. Hanger

mounting brackets shall be part of the chassis and shock mounts are provided

for vibration isolation. The unit offers service access to all components

through removable access panels lined with 1/2" thick insulation for noise

reduction.

Blower assembly The CM series includes a centrifugal blower assembly that has been

engineered for quite, reliable operation. Lower blower speeds reduce noise.

Permanently lubricated bearings, a single-belt variable pitch drive, and an

adjustable motor base insure dependable operation on the 4 and 5 ton models.

The 1 to 3 ton models are direct drive selections. In addition, the air return

patterns evenly distribute air across the cooling coil.

Electrical panel The electrical panel contains the contactors, starters, overload protection

devices, and input power circuit breakers. Each wire (except jumpers) is

numbered every 3" (80 mm), or color coded to facilitate circuit tracing when

installing and servicing the unit. Each AC power circuit is individually

branch circuit fused on all three phases. All compressor and motor devices

are thermally and short circuit protected. The electrical panel is easily

accessible from the front of the unit, and its modular construction allows

access to major components within the unit cabinet. All electrical

components are UL-listed and-recognized and all wiring conforms to NFPA

70 (NEC) and UL 1995 requirements.

Humidifier The humidifier utilizes a pure steam generator specifically designed for hi-

tech area environmental control. The pure steam eliminates contaminating

mineral deposits, potentially deadly bacteria, white dust and excessive

humidity. The humidifier requires little or no scheduled maintenance.

Automatic flushing combined with an indicator that signals when the canister

is to be changed, ensure maintenance free operation.

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APC CM Series Manual do Utilizador Página 12