Wiring Diagram
(1) Indoor Unit
–11–
(INDOOR)
DISPLAY PCB
ASSY.
MAIN PCB
ASSY.
TRANS-
FORMER
THERMISTOR
CN-TH
CN-TRANS
CN-FAN
RY-L
OR
RD
BL
BL
BL
BR
BK
MOTOR
CAPACITOR
BR
YL
GN/YL
GN/YL
FUSE
T3.15A
STEP
MOTOR
RY-COMP
CN-4WAY
RY
RD
BK
WH
CN-UP/DOWN 1,2
POWER
INPUT
GN/YL
CN-DISP
DOOR S/W 1,2
3
RY-M
RY-H
TERMINAL
BLOCK
1(L) 2(N) 3 4 5 6
7 8
CONVERTIBLE(HEAT PUMP)
STEP
MOTOR
TO OUTDOOR UNIT
(INDOOR)
DISPLAY PCB
ASSY.
MAIN PCB
ASSY.
TRANS-
FORMER
THERMISTOR
CN-TH
CN-TRANS
CN-FAN
RY-L
OR
RD
BL
BL
BL
BR
BK
MOTOR
CAPACITOR
BR
YL
GN/YL
GN/YL
FUSE
T3.15A
STEP
MOTOR
RY-COMP
CN-4WAY
RY-4WAY
RT-OUTFAN
RD
BK
WH
CN-UP/DOWN 1,2
POWER
INPUT
GN/YL
CN-DISP
DOOR S/W 1,2
3
RY-M
RY-H
TERMINAL
BLOCK
1(L) 2(N) 3 4 5 6
7 8
CONVERTIBLE(HEAT PUMP)
STEP
MOTOR
TO OUTDOOR UNIT
TO OUTDOOR UNIT
(INDOOR)
DISPLAY PCB
ASSY.
MAIN PCB
ASSY.
TRANS-
FORMER
THERMISTOR
CN-TH
CN-TRANS
CN-FAN
RY-L
OR
RD
BL
BL
BK
MOTOR
CAPACITOR
BR YL
GN/YL
GN/YL
GN/YL
FUSE
T3.15A
STEP
MOTOR
RY-COMP
CN-4WAY
CN-UP/DOWN 1,2
POWER
NPUT
BR
BL
WH
CN-DISP
DOOR S/W 1
4
3
RY-M
RY-H
TERM NAL
BLOCK
1(L) 2(N)
3
4
CONVERTIBLE(COOLING ONLY)
STEP
MOTOR
1. LV-B1820CL/1821CL/2420CL/2421CL
2. LV-B1820HL/2420HL
3. LV-B1821HL/2421HL