Modes And Operating Conditions; Terms And Definitions; Protection Functions; Auto Mode - EdgeStar Koldfront WAC8002WCO Service Manual

6 Modes and Operating Conditions

6.1 Terms and Definitions


TA: Temperature of indoor ambient.

TE: Temperature of evaporator.

TS: The set temperature.

DAHT: Heater sensor.

6.2 Protection Functions


The compressor restart protection has a delay of 3 minutes.

Sensor protection against an open or short circuit.

6.3 Auto Mode


AUTO Mode is a setting that allows the unit to automatically switch between COOL and FAN in order
to achieve and maintain the desired set temperature.

In Auto mode the unit will choose cooling or fan-only mode based on ΔT(ΔT=TA-TS)
ΔT = TA - TS
ΔT ＞ 4F
-2F ≤ ΔT ≤ 4F

The unit will default to running mode when in auto mode under the following circumstances:

Powering on, changing mode to auto mode or adjusting temperature in auto mode will cause the
unit to default to running mode again.

A: In auto mode, if the compressor does not run for 15 minutes check condition B.
B: If ΔT<-8℉ or ΔT ＞2℉, the unit will default to running mode again according to ΔT until the

compressor stops.
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Running mode
Cooling
Fan-only
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