Lennox LGH156H - Page 25

Page 25
CONTROL BOX PARTS ARRANGEMENT
(ADD ONS FOR 180U, 240U & 300U)
SECOND SECTION
HEAT RELAY (K19)
COMBUSTION AIR
INDUCER (K13)
COMPRESSOR
1 CONTACTOR
(K1)
COMPRESSOR
2 CONTACTOR
(K2)
COMPRESSOR
3 CONTACTOR
(K14)
COMPRESSOR
4 CONTACTOR
(K146)
BLOWER MOTOR
OVERLOAD RELAY
(S42)
BLOWER CONTACTOR
RELAY (K3)
TERMINAL
BLOCK (TB13)
BURNER 2
CONTROL
(A12)
BURNER 1
CONTROL
(A3)
CONTROL
TRANSFORMER
(T1)
TRANSFORMER
C.A.I. (T13) OR
UVC (T49)
TRANSFORMER
C.A.I. (T3)
POWER EXHAUST
RELAY (K65)
(PED ONLY )
OUTDOOR FAN
MOTOR FUSE
BLOCK (F10)
CONTACTOR
TRANSFORMER
(T18)
CONTROL MODULE
C3 (A178)
EXHAUST FAN
MOTOR FUSE
BLOCK (F6)
SEE
DETAIL A
DETAIL A
THERMOSTAT
CONNECTIONS
(J297)
CONTROL MODULE
(A55, M3)
OUTDOOR FAN
TRANSFORMERS (4)
CRANKCASE
HEATER RELAY (4)
FIGURE 4