Lennox Elite CB30U Series

L2 LI
LL
CIRCUN
HEAT ELEMENT _1
BREAKERS f %_€'*_
_'_ERMINAL
1 i_ O_}
K32
HEAT RELAY _I
GROUND
I-., /-_ _ TERMINALI O
'L_,
r.i I L
L-
Ir
K 3 INDOOR
BLOWER RELAY
BR ........
OR TRANSFORMER
FUSE
I I
__i__ __ .j I
J
NOTE-USE COPPER
CONDUCTORSONLY,
REFER TO UNIT RATING PLATE
FOR MINIMUM CIRCUIT AMPACITY
AND MAXIMUM OVERCURRENT
PROTECTION SIZE
NOTE-ALL REMAINING WIRES
FACTORY INSTALLED
LINE VOLTAGE FIELD INSTALLED
.... CLASS 2 VOLTAGE FIELD INSTALLED
NEC/GEC
Z_ TO EXTERNAL LOAD 24VAC
AT .50 AMP MAXIMUM
Z_THERMOSTAT HEAT ANTICIPATION
SETTING .€ AMP (ELECTRIC HEAT)
Z_ WHEN TWO STAGE THERMOSTAT IS USED,
CONNECT SECOND STAGE HEAT BULB TO
TERMINAL "W2," AND REMOVE JUMPER
BETWEEN TERMINALS "R" AND "W2."
_FACTORY INSTALLED JUMPERS
L3 CONNECTION USED ON (Y VOLTAGE) THREE PHASE ELECTRIC
HEATERS ONLY.
Figure 6. Cooling Only and with Electric Heating Applications
CIRCUIT BREAKERS
OR TERMINAL BLOCK
---D
[]
GROUND
L2 LI
IL
CIRCUI"
K 3 INDOOR
BLOWER RELAY
TRANSFORMER
CB1 CIRCUIT
BREAKER OR
FUSE
TBI
TERMINAL
I I
J I
J s, Z_
THERMOSTAT
fILl II
,,I----
_ uJI LI
HEAT PUMP CLASS 2
VOLTAGE TERMINALS
TO EXTERNAL LOAD 24VAC AT
.50 AMP MAXIMUM
FACTORY INSTALLED JUMPERS
/_ Y2 USED ONLY WHEN TWO SPEED COM-
PRESSOR IS USED (HP21).
USING SERVICE LIGHT OPTION ($54) WITH
SOME ELECTRONIC THERMOSTATS MAY RE-
CLASS 2 VOLIADE FIELD INSIALLEO "h
NEC/CEC
NOTE-ALL REMAINING WIRES FACTORY INSTALLE
IJ
[__.11
I II
I II
I II
I II
L_
F
QUIRE MOVING S54 COMMON WIRE TO Y1 IN
HEAT PUMP UNIT
/_ COMMON USED ONLY ON SOME THERMOSTATS.
Z_ AMBIENT COMPENSATING THERMISTOR CONNECTION USED ONLY
ON SOME THERMOSTATS.
Figure 7. Heat Pump Only
Page 9
CB30U/CBX27UH SERIES