Operation, Thermostat Base, Cooling System

Cooling System

This thermostat has a built-in short-term (5-minute) time delay. This feature is activated after the compressor shuts down and the setpoint is changed within the 5-minute period. During this 5-minute period, COOL will flash on the display indicating that the thermostat has locked out the compressor to allow head pressure to stabilize. This thermostat does not sense AC power loss and therefore does not activate the short term compressor protection feature when power is restored.

!CAUTION

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

1.Move SYSTEM switch to COOL position.

2.Press to adjust thermostat setting below room tempera- ture. The blower should come on immediately on high speed, followed by cold air circulation

3.Press to adjust temperature setting above room tem- perature. The cooling system should stop operating.

Before you begin programming your thermostat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of two parts: the thermostat cover and the base. To remove the cover, gently pull it straight out from the base. To replace the cover, line up the cover with the base and press gently until the cover snaps onto the base.

THE THERMOSTAT BASE

Other than and , the following buttons and switches are

located behind the door on the bottom of the thermostat cover (see fig. 11). Pull the door down to open it.

The Thermostat Buttons and Switches

OPERATION

	SET TIME VIEW PRGM RUN PRGM HOLD TEMP		FAN ON AUTO COOL OFF HEAT

1	(Red arrow) Raises temperature setting.
2	(Blue arrow) Lowers temperature setting.
3	SET TIME button.
4	VIEW PRGM (program) button.
5	RUN PRGM (program) button.

3 4 5 6

HEAT

BATTERY

11 12

7 8

HOLD COOL

10 13 9

6	HOLD TEMPerature button.
7	FAN switch (ON, AUTO).
8	SYSTEM switch (COOL, OFF, HEAT).

The Display

9HEAT is displayed when the SYSTEM switch is in the

HEAT position. COOL is displayed (non-flashing) when the SYSTEM switch is in the COOL position. COOL is dis- played (flashing) when the compressor is in lockout mode.

Figure 11. Thermostat display, buttons, and switches

10Alternately displays current time and temperature.

11BATTERY is displayed when the 3 “AA” batteries are low and should be replaced. Nothing else will be displayed.

12Displays currently programmed set temperature (this is blank when SYSTEM switch is in the OFF position).

13The word HOLD is displayed when the thermostat is in the HOLD mode.