Lennox LGH094U Unit Information page 78

GAS HEAT FOR LGH092/150 UNITS
KEY DESCRIPTION
A3 CONTROL, BURNER 1
CONTROL, MAIN BOARD LENNOX
A55
B6 MOTOR COMBUSTION AIR BLOWER
C3 CAPACITOR, COMB AIR BLOWER 1
E1 SPARK
FUSE, OUTDOOR FAN MOTOR
F10
FS1 SENSOR FLAME
GV1 VALVE GAS 1
HR6 HEATER, −50C LOW AMBIENT KIT
JACK, BURNER 1
J15
JACK, COMBUSTION AIR BLOWER 1
J19
J135 JACK, PRIMARY LIMIT
J228 JACK, VESTIBULE HEATER
JACK, VESTIBULE HEATER CONTROL 1
J229
JACK, CONTACTOR RELAY
J265C
J266A JACK, HEATING CONTROL STG 1
J271A,B JACK, HEATING SENSORS STG 1
K13,−1 RELAY, COMBUSTION AIR BLOWER
K123, −1 RELAY, SINGLE THROW LIMIT
K125,−1 RELAY, HEAT SHUT OFF
PLUG, BURNER 1
P15
PLUG, COMBUSTION AIR BLOWER 1
P19
P135 PLUG, PRIMARY LIMIT
P228 PLUG, VESTIBULE HEATER
P229 PLUG, VESTIBULE HEATER CONTROL 1
PLUG, CONTACTOR RELAY
P265
P266 PLUG, HEATING CONTROL
PLUG, HEATING SENSORS STG 1
P271
S10 SWITCH, LIMIT PRIMARY GAS
S18 SWITCH, COMBUSTION AIR BLOWER PROOF
S47 SWITCH FLAME ROLLOUT BURNER
TSTAT, OPEN −20F, CLOSE 10F
S59
S60 TSTAT, OPEN 20F, CLOSE −10F
S61 TSTAT, OPEN 50F, CLOSE 20F
T3 TRANSFORMER COMB AIR BWR 1
FROM F10
A55
2
(24 VAC)
S10-C 1
7
2
S10-NC
3
S10-NO
S21-C
4
S21-NC
5
H1
6
7
S18
8
S18
CAB
9
GV1
10
A8,
2
K15
W2,
K16
COMM
K13
P265
9
J265D
12
3
Supersedes
537705-03
Page 78
S59 (1)
8
F10 USED ON UNITS WITH SCCR OPTION
T3 NOT CONNECTED TO F10 ON 575V SCCR UNITS
WIRING DIAGRAM
HEATING
GAS HEAT, 130, 180 AND 240
SECTION A
New Form No.
537705-04
S60
13
S61
10
5
12
07/18
REV. 0