COOLING SYSTEM

!CAUTION

To prevent compressor and/or property damage, if the outdoor temperature is below 50°F (10°C), DO NOT operate the cooling system.

1.Press PROGRAM RUN .

2.Press SYSTEM until COOL is displayed.

3.Press to adjust thermostat setting below room temperature. The fan should come on (after the fan-on delay time, if any), followed by cold air circulation.

4.Press to adjust tempera- ture setting above room temperature. The cooling system should stop operating, and the fan should stop

running (after the fan-off delay time, if any).

MULTI-STAGE/HEAT PUMP AUXILIARY OPERATION TEST

Follow these steps to energize all stages of heat or cool to permit system checks during installation.

HEAT: Press to raise temperature setting to 99°F, then hold for five seconds. The second and third stage heat relays will energize immediately for test purposes. The LED indicator will glow green for first stage and yellow for second stage.

COOL: Press to lower temperature setting to 45°F, then hold for five seconds. The second stage cool relay will energize immediately for test purposes. The LED indicator will glow green for first stage and yellow for second stage.

EMERGENCY (heat pump only): Press SYSTEM to select EMER mode. The LED indicator will glow red for emergency mode. A flashing light indicates a malfunction in the system.

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Emerson 1F92 manual Cooling System, MULTI-STAGE/HEAT Pump Auxiliary Operation Test