Buttons And Switches; Thermostat Quick Reference; The Display - White Rodgers 1F87-0261 Installation And Operating Instructions Manual

WIRING DIAGRAMS
Optional Jumper for
Single Stage Heat Pump
O/B Y G
Changeover Fan
Relay* Relay
Compressor
Contactor
COMMON
* Changeover Relay is energized in COOL when O/B switch is in the "O" position
Changeover Relay is energized in HEAT when O/B switch is in the "B" position
Figure 4. Typical wiring diagram for two transformer single stage systems with safety circuits in BOTH systems

THERMOSTAT QUICK REFERENCE

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 and switches (see
fig. 5). Your thermostat consists of two parts: the thermostat
cover and the base. To remove the cover, pull it straight out
from the base. To replace the cover, line up the cover with the
base and press until the cover snaps onto the base.
The Thermostat Buttons and Switches
1
Raises temperature setting.
2
Lowers temperature setting.
3
TIME button.
4
SYSTEM switch (COOL, OFF, HEAT, EMER).
5
PRGM (program) button.
FAN switch (ON, AUTO).
6
RUN/HOLD (program) button.
7

The Display

8
Indicates days of the week.
Indicates setpoint temperature. This is blank when system
9
switch is in the OFF position. Setpoint temperature is
displayed (flashing) if the thermostat is in lockout mode to
prevent the compressor from cycling too quickly.
10
"Save" indicates the Cool Savings feature is enabled in
the configuration menu. "Save" (flashing) indicates Cool
Savings feature is active.
11
Flame icon ( ) is displayed when the SYSTEM switch is
in the HEAT position. Flame icon ( ) is displayed flashing
when thermostat is calling for heat. Snowflake icon ( )
is displayed (non-flashing) when the SYSTEM switch is
in the COOL position. Snowflake icon ( ) is displayed
(flashing) if the thermostat is calling for cool.
W C
Optional
Heat
Relay
TWO COMMONS MUST
BE JUMPERED TOGETHER!
Polarity must be observed. If the HOT side of the
second transformer is jumpered to the COMMON side
of the first transformer a short will be made. Damage
to equipment will occur when power is restored.
R
Limit or
Safety
24 VAC
Switches
24 VAC
ACCESSORY
RELAY N.O.
CONTACT
COMMON
Limit or
Safety
Switches
24 VAC
Heat Pump Transformer
(Class II Current Limited)
12
Displays current temperature.
"Service" indicates a diagnostic fault in the heating/cooling
13
system. It does not indicate a fault in the thermostat.
"Change Filter" is displayed when the system has run for
14
the programmed filter time period as a reminder to change
or clean your air filter.
" " indicates power level of batteries. "Change
15
indicates batteries should be replaced.
16
Indicates time.
"A" "P" indicates time as Morning (A) Evening (P).
17
"Temp Hold" indicates temporary hold or "Hold" indicates
18
hold mode.
Figure 5. Thermostat display, buttons, and switches
SYSTEM
3
4
17
16
15
14
13
4
NOTE
THERMOSTAT
SYSTEM
Limit or
Safety
HOT
Switches
120 VAC
NEUTRAL
Auxiliary
NOTE
Heating
Transformer The accessory relay scheme
(Class II
is required when
Current Limited)
circuits exist in both systems.
Limit or
Safety
HOT
Switches
120 VAC
NEUTRAL
7
6
5
18
9
10
12
11
safety
"
2