Operation; Cooling System; The Display - White Rodgers 1F87-51 Installation And Operation Instructions Manual

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.
!
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
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
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.
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.
10 HEAT 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.
CAUTION
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.
1
SET TIME VIEW PRGM RUN PRGM HOLD TEMP
SET TEMP
3 4 5
9 10
MO TU WE TH FR
HEAT
AM
11
BATTERY
12 13
Figure 11. Thermostat display, buttons, and switches
11 Alternately displays current time and temperature.
12 BATTERY is displayed when the 3 "AA" batteries are low
and should be replaced. Nothing else will be displayed.
13 Displays currently programmed set temperature (this is
blank when SYSTEM switch is in the OFF position).
14 The word HOLD is displayed when the thermostat is in the
HOLD mode.
4
WHITE-RODGERS
FAN ON AUTO COOL OFF HEAT
ADV DAY
6 7 8
9
SA SU
COOL
HOLD
11 14 10
2