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KEEP WIRING IN
SHADED AREA
G
C
R
W1
Y
MOUNTING
SCREW HOLE
WIRING
ENTRANCE HOLE (2)
Fig. 4. Restrict wiring to shaded area.
THERMISTOR
SENSOR
THERMOSTAT
LOGIC
POWER
SUPPLY
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
REMOVE JUMPER, WHEN SUPPLIED, FOR SYSTEMS WITH SEPARATE HEATING COMPRESSOR CONTACTOR (W1 SEPARATE FROM Y).
3
NOT ALL MODELS HAVE BOTH O AND B TERMINALS.
Fig. 6. T8011F two-stage heat, one-stage cool wiring diagram with manual changeover.
T8011F FLUSH MOUNT PROGRAMMABLE HEAT PUMP THERMOSTAT
KEEP WIRING IN
SHADED AREA
L
W2
E
B
O
MOUNTING
SCREW HOLE
M20158
STAGE 2 RELAY
STAGE 1 RELAY
FAN SWITCH
ON
AUTO
The T8011F Thermostat is powered directly from the
system transformer and is adaptable to most 18 to
30 Vac heating-cooling systems. All T8011F Thermostats
require a common wire to supply power. Refer to Fig. 6
for a typical wiring hookup.
Mounting Thermostat to Wallplate
1. Slide SYSTEM switch to the Off position.
2. Slide the thermostat straight into the wallplate until
it is flush against the wall. See Fig. 5.
PRESS THERMOSTAT STRAIGHT
BACK ONTO WALLPLATE
Fig. 5. Mounting thermostat to wallplate.
SYSTEM
SWITCH
EM. HT.
HEAT
OFF
COOL
3
L1
(HOT)
R
L2
AUXILARY
HEAT RELAY
1
W2
RELAY
L
CHANGEOVER
VALVE HEAT
B
CHANGEOVER
3
VALVE COOL
O
COMPRESSOR
CONTACTOR
Y
2
COMPRESSOR
CONTACTOR
HEAT
W1
EMERGENCY
HEAT RELAY
E
FAN RELAY
G
C
M11333A
M20159
69-1558
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