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CIRCUIT 1
CIRCUIT
BREAKERS OR
TERMINAL
BLOCK
THERMOSTAT HEAT ANTICIPATION SETTING 0.4 AMP ELECTRIC HEAT
FACTORY INSTALLED JUMPERS
MOVE JUMPER BETWEEN TERMINALS "R' AND "W2."
EMERGENCY HEAT RELAY (USED ONLY IF OUTDOOR T'STAT IS USED) FIELD PROVIDED AND
INSTALLED NEAR INDOOR UNIT. 24VAC 5VA MAX NEC/CEC CLASS 2
USING SERVICE LIGHT OPTION (S54) WITH SOME ELECTRONIC THERMOSTATS MAY REQUIRE
MOVING S54 COMMON WIRE TO Y1 IN HEAT PUMP UNIT.
COMMON USED ONLY ON SOME THERMOSTATS.
Y2 USED ONLY WHEN TWO SPEED COMPRESSOR IS USED
(HP21).
STATS.
L3 CONNECTION USED ON Y VOLTAGE 3 PHASE ELECTRIC HEATERS ONLY.
FIGURE 12. Typical Field Wiring – Heat Pump Applications with Electric Heat
4
6
1
3
9
7
CB1
CIRCUIT
BREAKER
E
Page 7
C
G
O Y1 R
L
W1
C
O
R
L
W1
Y1
Y2
T
T
Y2
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