White Rodgers 1F87-51 specifications Operation, The Thermostat Base, Cooling System, The Display

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.

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.

!CAUTION

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

OPERATION

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 1 cover, line up the cover with the base and press gently until the cover snaps onto the base.

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WHITE-RODGERS

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

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

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

11

3	4	5	6
9		10
MO TU WE TH FR		HEAT
AM

BATTERY

12 13

78

9

SA SU

HOLD COOL

11 14 10

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

The Display

9 Indicates day of the week.

10HEAT is displayed when the SYSTEM switch is in the HEAT

position. COOL is displayed (non-flashing) when the SYS- TEM switch is in the COOL position. COOL is displayed (flashing) when the compressor is in lockout mode.

Figure 11. Thermostat display, buttons, and switches

11Alternately displays current time and temperature.

12BATTERY is displayed when the 3 “AA” batteries are low and should be replaced. Nothing else will be displayed.

13Displays currently programmed set temperature (this is blank when SYSTEM switch is in the OFF position).

14The word HOLD is displayed when the thermostat is in the HOLD mode.

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