APC NETWORKAIR ACPA4000 User Manual download pdf (Page 37)

Operation: Responding to Alarms

NetworkAIR

ACPA4000 User Manual 31

Remote temperature

high

Alarm set point may be too low.

Check that the sensor is not near a direct heat source like an equipment

discharge fan, a room supply duct, a window, direct sunlight, or a room

entrance.

Unit capacity may be too small for room load.

Check that the unit is cooling. Verify that there is at least a 15° F

(9.4° C) temperature difference between supply and return.

Remote temperature

low

Alarm set point may be too high.

Verify that the return air is not coming from a cold air supply source

like a room discharge duct or an open window.

Remote humidity

high

Alarm set point may be too low.

Alarm delay may be too short. Sufficient time must be allowed to let the

unit bring space humidity under control. This is especially true with

new equipment start-ups.

Remote sensor may be located near a moisture source like an open sink,

a window, or an entrance to an unconditioned space.

Unit capacity may be too large for space. Reduce fan speed to low.

Remote humidity low Alarm set point may be too high.

Air filter clogged Change the filter.

Water collection pan

full

Check the drain line.

User contact 1 alarm

Check the connected device.

User contact 2 alarm Check the connected device.

User contact 3 alarm Check the connected device.

Unit shutdown via

remote stop

Verify remote stop.

Alarm Message Action Required

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APC NETWORKAIR ACPA4000 User Manual Page 37