APC DX Manual de Serviço descarregar pdf (Página 11)

Standard Features

APC NetworkAIR™ FM-DX 7

Steam Generating Humidifier

The humidifier utilizes a pure steam

generator specifically designed for

precision environmental control.

The pure steam eliminates contami-

nating mineral deposits, potentially

harmful bacteria, white dust and

excessive humidity. The humidifier

requires little scheduled mainte-

nance. Automatic flushing

combined with a communication

link to the controller signals when

the canister is to be changed.

Humidifier is proportionally con-

trolled to meet the humidification

demands of the conditioned space.

The communication link to the

main controller provides diagnostic

capability for the humidifier.

High Return Air Temperature

Capability

All NetworkAIR FM units are

equipped to handle the high return

air temperatures associated with

today’s high density applications.

Refrigerant Charge Isolation

For compressor protection, the Net-

workAIR FM utilizes charge

isolation and crank case heaters

during compressor off-cycles. This

eliminates the threat of liquid

refrigerant migration that could lead

to compressor slugging and lubrica-

tion issues.

Refrigeration System Monitoring

The system reports real time moni-

toring of both suction and discharge

pressures to the controller. Pres-

sures shall be logged and displayed

at the proper menu selection on the

controls.

High Lift, Dual Float Condensate

Pump

The factory installed and wired con-

densate pump is capable of

pumping 60 gal/hr (0.06 L/s) at 60

ft. (18.3 m) head.

30% ASHRAE 52.1 Filters

The filtration of conditioned air is

extremely vital to maintaining the

clean, particle-free environment

required by electrical equipment.

The system uses 30% efficient (100

microns) (ASHRAE 52.1-92), 4”

(102 mm) deep filters, with full

depth filter pleats. Deeper filters

produce a lower pressure drop,

requiring less energy during normal

operation. Filters are replaceable

through the front of the upflow unit,

and through the top of the down-

flow unit.

SCR Controlled Electric Reheat

Electric reheat elements are low

watt density, wired for 3-phase and

loaded equally on all three phases,

SCR controlled, and electrically

and thermally protected by both

automatic and manual reset thermal

cut outs. Reheat coils are stainless

steel, fin tubular construction.

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