Service manual

21
OUTDOOR UNIT
GROUND
FROM INDOOR UNIT
CONNECTING WIRES
12V DC
TO INDOOR UNIT
CONNECTING
115V
1 phase 60Hz
FROM
INDOOR UNIT
POWER
SUPPLY
208/230V
1 phase 60Hz
L63
TB1
L62
CY62
CY61
CY63
CY64
P.C. BOARD
NOISE FILTER
P.C. BOARD
CT61
DS62
T801
TB2
SSR61
RELAY
X61
F901
C65
X64
DSA61
NR61
R64
DS61
RT64
L61
C61
C63
LEV
R61
F801
IPM
ELECTRONIC
CONTROL
P.C. BOARD
RT61 RT62
MC
21S4 MF61
L2
N
L1
L1
+
–
(–)
(~)
(~)
(+)
(–) (~)
(+)
(~)
123
W
V
U
P
N
U
V
W
N
1
3
4
3
53
1
642
21
4321
123
+
–
12
6
4
3
CN726
TAB68
LDE1
LD64
LDE2
TAB66
TAB69
CN725
LD62
TAB
P
TAB65
CN641
CN601
CN721
CN771
CN723
TAB
67
TAB
N
CN722
CN724
CN642
BLU
BLK
ORN
RED
RED
BLK
GRN
ORN
BLU
GRN
BLU
WHT
BLK
VLT
WHT
BLK
WHT
RED
YLW
RED
BLK
BLK
YLW
YLW
VLT
ORN
WHT
RED
BLK
RED
RED
BLK
WHT RED
RED
TABU
TABW
TABV
R.V. coil
heating ON
cooling OFF
SYMBOL
CT61
C61
C63
C65
CY61~64
DSA61
DS61,62
F801
F901
IPM
SYMBOL
LEV
L61
L62,L63
MC
MF61
NR61
RT61
RT62
RT64
R61
SYMBOL
R64
SSR61
TB1,2
T801
X61
X64
21S4
NAME
CURRENT TRANSFORMER
POWER-FACTOR CAPACITOR
SMOOTHING CAPACITOR
OUTDOOR FAN CAPACITOR
CAPACITOR
SURGE ABSORBER
DIODE STACK
FUSE (2A)
FUSE (1A)
INTELLIGENT POWER MODULE
NAME
EXPANSION VALVE COIL
REACTOR
COMMON MODE CHOKE COIL
COMPRESSOR
OUTDOOR FAN MOTOR(INNER PROTECTOR)
VARISTOR
DEFROST THERMISTOR
DISCHARGE TEMPERATURE THERMISTOR
FIN TEMPERATURE THERMISTOR
CURRENT-DETECTING RESISTOR
NAME
CURRENT-LIMITING RESISTOR
SOLID STATE RELAY
TERMINAL BLOCK
TRANSFORMER
FAN MOTOR RELAY
RELAY
R.V. COIL
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block, : Connector
MODELS WIRING DIAGRAM
MUZ09UN
MUZ12UN
OB297--1.qxp 04.2.4 4:20 PM Page 21