Main Control Board - Lennox VWMA007S4 Installation Instructions Manual

TR
DM
XP2 XS2
HEAT
HEAT_N
RED
BLUE
XT1
L1 L2
INDOOR UNIT POWER
208-230V
Typical wiring diagram. Refer to wiring diagram on the unit for actual wiring.
WHITE(GRAY)
Y/G
ANION
WHITE
GROUND
CN20
CN2 CN21
(BLUE)
(RED)
CN3
(WHITE)
CN7
(WHITE)

MAIN CONTROL BOARD

CN24
(WHITE)
HEAT_L
CN1
(BLUE)
Z
Y/G
Y/G
GROUND
KEY COMPONENT
FM
INDOOR FAN
ELECTRONIC
EEV
EXPANSION VALVE
INLET AIR TEMP.
T1
EVAP OUTLET TEMP.
T2B
(COOLING MODE)
COIL TEMP.
T2
PLUG
XP1-7
JACK
XS1-
7
TRANSFORMER
TR
XT1-2 TERMINAL BLOCK
WATER LEVEL SWITCH
CS
C FAN CAPACITOR FAN CAPACITOR
GM SWING MOTOR
PUMP MOTOR
DM
HEAT AUXILIARY HEATER
ANION ANION GENERATOR
Figure 12. Typical VWMA007 to 018 Wiring Diagram
GM
C
Y/G
FM
EEV
GROUND
CN4
CN15
(WHITE)
ON
SW6 ENC1
POWER_S
CN10
ON ON ON
SW1 SW2 J1J2 SW5
(WHITE)
CN19
WHITE BLACK
T1 T2
T1
NOTE - Dashed line indicates optional or field-
wired components.
NOTE - If indoor unit is the final unit in a group
wired in series, install provided resistor across
terminals P and Q.
NOTE - Use 3-conductor, shielded cable for
communication wiring.
10
GM
DISPLAY BOARD
CN1 CN2
CONTROLLER
CN5
WHITE
REMOTE
CN14
ON / OFF
YELLOW
CN13
YELLOW
XS1XP1
WEEKLY TIMER
CN17
(WHITE)
CN16
(RED)
CN9
CN8
(E)
X Y
CONNECT TO
CONNECT TO
WIRED CONTROLLER
T2B
WIRED
TROLLER
Q(E)
P
XT2
OUTDOOR
UNIT