Lennox LCH092H Unit Information page 71

LCH150H - G, J, M - CONSTANT SUPPLY AIR, BELT DRIVE BLOWER
P268
J268
A55
T43
L14
L14
L30
K251
RSV
T43
A55
K252
T43
GND
R
DI 4
1
J268
P268
GND
T1
24 VAC COMMON
GND
CB10
J268
P268
F4/F61
S48
TB2
J11
4
B3
S42 USED ON "M" VOLTAGE UNITS AND UNITS WITH
HIGH EFFICIENCY MOTORS
ONLY IN UNITS WITH HUMIDITROL OR PHASE AND
VOLTAGE DETECTION OPTION
EXTERNAL HUMIDITROL CONTACTS
S49 AND S50 ARE PART OF 5VDC CIRCUIT
J268-1,-3 AND J268-2,-4 ARE CONNECTED ON UNITS
WITHOUT HUMIDITROL OR PHASE DETECTION OPTIONS
B10 IS NOT USED ON UNITS WITH ERV
USED ON UNITS WITH ERV SINGLE POINT
POWER. SEE ERV DIAGRAM
USED ON LCH AND UNITS WITH ERV SINGLE
POINT POWER ONLY
NOTE: FOR USE WITH COPPER CONDUCTORS
ONLY. REFER TO UNIT RATING PLATE FOR
MINIMUM CIRCUIT AMPACITY AND MAXIMUM
OVERCURRENT PROTECTION SIZE.
P268
NOTE - IF ANY WIRE IN THIS APPLIANCE IS REPLACED
IT MUST BE REPLACED WITH WIRE OF LIKE SIZE,
J268
RATING, TERMINATION AND INSULATION THICKNESS.
DISCONNECT ALL POWER BEFORE SERVICING !
A55
RT17
S11
S84
S5
A55
P265
P265
J265A
J265C
P265
J265C
A
10
K1
8
A A
B
K10
K68
B B
J265C J265A
P265 P265
1
C
NC
B1 B2
HR1 HR2
14
9
J/P JACK/PLUG DESCRIPTION
A55
S49 S50
S87 S88
S4
S7
S8
A55 A55
P265
J265A
P265 P265
A
J265E
J265B
13
K2
A A
B
3
K3 K65
B B
5
J265E
P265
F10
7
11
4
7
C1
C
1
NC
7
4
Supersedes
537898-01
Page 71
24 VAC POWER
KEY COMPONENT
PANEL, MAIN
A55
B1 COMPRESSOR 1
B2 COMPRESSOR 2
B3 MOTOR, BLOWER
MOTOR, OUTDOOR FAN 1
B4
MOTOR, OUTDOOR FAN 2
B5
MOTOR, EXHAUST FAN
B10
CAPACITOR, OUTDOOR FAN 1
C1
CAPACITOR, OUTDOOR FAN 2
C2
CAPACITOR, EXHAUST FAN
C6
CIRCUIT BREAKER, TRANSFORMER T1
CB8
CIRCUIT BREAKER, UNIT MAIN DISCONNECT
CB10
CIRCUIT BREAKER, TRANSFORMER T43
CB31
FUSE, UNIT
F4
FUSE, OUTDOOR FAN MOTOR
F10
FUSE, SCCR OPTION UNIT
F61
HEATER, COMPRESSOR 1
HR1
HEATER, COMPRESSOR 2
HR2
JACK, GFI RECEPTICLE
J11
K1,−1 CONTACTOR, COMPRESSOR 1
K2,−1 CONTACTOR, COMPRESSOR 2
K3, −1 CONTACTOR, BLOWER
K10,−1,2 RELAY, OUTDOOR FAN 1
K65−1,2 RELAY, EXHAUST FAN
K68,−1,2 RELAY, OUTDOOR FAN 2
K251−1,2 RELAY, 2SPEED MOTOR HIGH
K252−1,2 RELAY, 2SPEED MOTOR LOW
VALVE,SOLENOID REHEAT COIL 2
L30
SENSOR, OUTSIDE AIR TEMPERATURE
RT17
SWITCH, LIMIT HI PRESS COMP 1
S4
SWITCH, LIMIT HI TEMP COMPRESSOR 1
S5
SWITCH, LIMIT HI PRESS COMPRESS 2
S7
SWITCH, LIMIT HI TEMP COMPRESSOR 2
S8
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 1
S11
SWITCH, OVERLOAD RELAY BLOWER MOTOR
S42
SWITCH, DISCONNECT
S48
SWITCH, FREEZESTAT COMP 1
S49
SWITCH, FREEZESTAT COMP 2
S50
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 2
S84
SWITCH, LOW PRESS, COMPRESSOR 1
S87
SWITCH, LOW PRESS, COMPRESSOR 2
S88
TRANSFORMER, CONTROL
T1
TRANSFORMER, HUMIDITROL
T43
TERMINAL STRIP, UNIT
TB2
24 VAC COMMON
7
7 9
4
C2
4 6
9
J18
P18
3
C6
9
J132
6
P132
B10
WIRING DIAGRAM
COOLING
LCH/LGH 150H - G, J, M
SECTION B
New Form No.
537898-02
6
07/18
REV 0