Lennox ELA Series

Page 24
V - Wiring Diagrams
Lennox Commercial
BLOWER
REV 0
B3
K43-1
K43
J/P246
K43,-1
JACK/PLUG POWER TO VFD
RELAY-ECONOMIZER BLOWER
G
W1
COMMON
K220
S149
K220,-1
RELAY-OVERFLOW
S149
SWITCH-OVERFLOW
Y1
H1
H2
C2
C1
TB1
TB1
C
TB1
TERMINAL STRIP-CLASS II VOLT
5
7
2
A
B
A
B
W2
GROUND
DENOTES OPTIONAL COMPONENTS
1
1
S49
S50
SWITCH-FREEZESTAT COMPRESSOR 1
SWITCH-FREEZESTAT COMPRESSOR 2
3
3
FOR USE WITH COPPER
CONDUCTORS ONLY
IF ANY WIRE IN THIS APPLIANCE IS REPLACED, IT
MUST BE REPLACED WITH WIRE OF LIKE SIZE,
RATING, INSULATION THICKNESS AND TERMINATION
WARNING-ELECTRIC SHOCK HAZARD, CAN CAUSE
INJURY OR DEATH. UNIT MUST BE GROUNDED IN
ACCORDANCE WITH NATIONAL AND LOCAL CODES
DISCONNECT ALL POWER BEFORE SERVICING
S50 LOCATION ON UNITS WITH TWO
SINGLE SPEED COMPRESSORS
S149 SWITCH AND K220 RELAY MAY BE
FIELD SUPPLIED OR USE AVAILABLE KIT
COMPONENTKEY
2
1
VFD CONTROL (G)
Y2
R
K220-1
7
2
1
S50
2
TB1
24VAC
K232
9
6
K232
A
B
1
2
3
4
5
A96
H2
A183
PC
STF
RL
B
C
SD
RH
SD
RH
RL
STF
PC
A183
CONTROL, VFD BOARD
A96
CONTROL, INVERTER
RST
WVU
G
G
A96
K232,-1
RELAY-INVERTER PROTECTION
S49
P248
J248
TB13
TERMINAL BLOCK, POWER DISTRIBUTOR
J/P247
JACK/PLUG VFD TO MTR
J/P248
JACK/PLUG VFD CONTROL
B3
MOTOR-BLOWER
S50
4
4
S50 LOCATION ON UNITS WITH ONE
DUAL SPEED COMPRESSOR
FIGURE 7. Typical Wiring Diagram