Lennox CBX32M Elite Series Installation Instructions Manual page 11

CIR-
CUIT 1
CIRCUIT BREAKERS
OR TERMINAL BLOCK
LINE VOLTAGE FIELD
INSTALLED
CLASS 2 VOLTAGE FIELD
INSTALLED NEC/CEC
NOTE − ALL REMAINING WIRES
ARE FACTORY INSTALLED
THERMOSTAT HEAT ANTICIPATION
SETTING 0.4 AMP ELECTRIC HEAT
FACTORY INSTALLED JUMPERS
WHEN OUTDOOR THERMOSTAT IS
USED, CONNECT LEADS TO
TERMINALS R" AND W2" AND
REMOVE JUMPER BETWEEN
TERMINALS R' AND W2."
EMERGENCY HEAT RELAY (USED
ONLY IF OUTDOOR T'STAT IS
USED) FIELD PROVIDED AND
INSTALLED NEW INDOOR UNIT.
24VAC 5VA MAX NEC/CEC CLASS 2
Figure 13. Typical Field Wiring − Heat Pump Application with Electric Heat
CIRCUIT 1
FIELD−SUPPLIED WIRE NUTS
4 6
1 3
9
7
CB1
CIRCUIT
BREAKER
OR FUSE
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)
AMBIENT COMPENSATING THERMISTOR CONNECTION USED ONLY ON
SOME THERMOSTATS.
4
1
(Black) 7
(Orange)
CB1 CIRCUIT BREAKER OR
FUSE
Figure 14. Typical Field Wiring − Cooling Only Application
K22
E
S23
HEAT PUMP CLASS 2
VOLTAGE TERMINALS
NOTE − USE COPPER CONDUCTORS ONLY.
REFER TO UNIT RATING PLATE FOR MINIMUM
6
CIRCUIT AMPACITY AND MAXIMUM OVERCUR-
3
RENT PROTECTION SIZE.
9
NOTE − ALL REMAINING WIRES ARE FACTORY
INSTALLED
TO EXTERNAL LOAD 24VAC AT .50 AMP MAXIMUM.
FACTORY INSTALLED JUMPERS
Page 11
6
C W1 G O Y1 R
C O R
W1 Y1
LINE VOLTAGE FIELD INSTALLED
CLASS 2 VOLTAGE FIELD INSTALLED
NEC/CEC
L Y2
T
7
L
T Y2
8
CBX32M SERIES