Main Control Board - Lennox VRF VVCA Series Installation Instructions Manual

TR
PUMP
XP4 XS4
GROUND
RED
BLACK
XT1
L1 L2
INDOOR POWER
KEY COMPONENT
FM INDOOR FAN
ELECTRONIC
EEV
EXPANSION VALVE
INLET AIR TEMP.
T1
EVAP OUTLET TEMP
T2B
IN COOLING MODE
T2
COIL TEMP.
PLUG
XP1-10
XS1-10 JACK
TR TRANSFORMER
PUMP MOTOR
PUMP
WATER LEVEL SWITCH
CS
TERMINAL BLOCK
XT1-2
Typical wiring diagram. Refer to wiring diagram on the unit for actual wiring.
CS
CN1 1 CN5
CN1
O N
SW1
CN13

MAIN CONTROL BOARD

CN2 7
P1
P2
CN2 8
XP5
XS5
Y/G
GREEN
GROUND GROUND
F M
：
NOTE
COMPONENT IN DASH
LINE IS OPTIONAL
OR FIELD WIRING
Figure 13. VVCA018-054H4-1 Wiring Diagram
XS2
XP2
CN2 0
CN1 5（WH I TE）
CN1 0（YELL OW）
ON
ON
O N
J1 P O WE R _ S
SW 2
SW5
SW6
ENC 1
CN6
CN3 1 CN7 CN8
BLACK
WHITE
T2B
T1 T2
14
W IR E D
DISPLAY BOARD
C ON T ROLL ER
CO N TR OL INTE R FACE
MO D UL E
XP3 XS3
CN16
CN 3
ALARM
C N1 2
XS1 XP1
WEEKLY TIMER
WIRED CONTROLLER
CN 9
CN1 7
XT2
Y (E)
X P Q (E)
EEV
CONNECT TO
CONNEC T TO
WIRED CONTROLLER
OUT DOO R UNIT
N OTE 1: R EFE R TO MA NUAL FO R
CO MMU NICAT ION WI RIN G
2: PLEA SE US E THE
3- CON DUCTO R
SH IEL DED CA BLE
WIRE D
CONT ROL L ER