56
3U52S2SG1FA 3U68S2SG1FA
PMV_A
PMV_B
PMV_C
PMV_RE
1 2 3 4 56 7 8
FILTER
SW3 SW4
SW2SW1
CN12 CN13
CN9
GND
CN11
CN8
DISP
TO Module
ELECTRONIC
CONTROL UNIT
P2(N)
POWER
CIRCUIT
BOARD
Y/G
M
CN16
Td
Te
Ts
Ta
Tc
CN17
CN18
LED_G
LED_R
CN34
DC FAN
MOTOR
250VAC
FUSE
M
To Indoor
Units C
CN14
LP
250VAC T3.15A
FUSE
CN5
4-WAY VALVE
Toci
M
M
FG
Vsp
Vcc
CN7
CN15
HP
ACN
ACL
W
U
COMPRESSOR
V
+
-
BR
BL
REACTOR
U
V
W
N(-)
P(+)
MODULE
ON
4321
ON
M
DISP
COMM
2
1
3
Y/G
To Indoor
Units B
2
1
3
Y/G
To Indoor
Units A
2
1
3
CON8
CON9
Vdc
L N
4
3
Power
CN2
CN23
CN21
SW6 SW5
Tm
CN12
P1(L)
CN1
RL1
Y/G
ON
4321
CN2 CN3
CN1
CN4
SW1
OR: Orange B: Black BL: Blue R: Red
Y/G: Yellow/Green W: White BR:Brown
Toci: Outdoor Condensing inlet Temp. sensor
Tc: Condensing Temp. Sensor
Ts: Compressor Suction Temp. Sensor
Ta: Ambient Temp. Sensor
Td: Compressor Discharge Temp. Sensor
Te: Defrosting Temp. Sensor
Tm: Module Temp. Sensor
Tc1(a/b/c):Condensing Temp. Sensor for
Indoor Units a/b/c (Gas Pipe)
Tc2(a/b/c):Condensing Temp. Sensor for
Indoor Units a/b/c (Liquid Pipe)
*
The dashed part is optional.
B
W
W
W
B
B
R
Definition of SW5
1
2
3
4
5
6
7
8
Restrict of Max Current: ON→Less than 15A; OFF→Adjust by machine types
3U52S2SG1FA
Temperature Correction: ON→Available; OFF→Unavailable (Default)
Definition of SW1
1
2
3
4
Normal Operating(Default)
OFF
OFF
OFF
OFF
ON
OFF OFF
OFF
OFF
ON OFF
OFF
OFF
OFF
ON
OFF
Compulsive Heating
Compulsive Cooling
Rated Operating
Definition of SW6
1
2
3
4
OFF
OFF
OFF
OFF
OFF
OFF OFF
ON
ON
ON
ON ON
Centralized Control
Address=1
Address=2
Address=16
---------------
---- ---- ---- ----
CRANKCASE
HEATER
R
R
R
Y/G
W
B
OFF
OFF
ON
P7
P6
P5
P4
P3
W
B
1 2 3 4 56 7 8
ON
SW7
4321
5
W
B
OFF
0150520843
CN24 A-TC1
CN25 B-TC1
CN26 C-TC1
CN29 A-TC2
CN30 B-TC2
CN31 C-TC2
3
4
A
B
Center
Controller
3U68S2SG1FA
OFF
OFF
ON
R
BR
CN10
ACL ACN
RI
RO
Time Defrost Valid
OFF
OFF OFF ON
CN2
PTC
CN6
Defrosting Parameter: ON→6° ; OFF→8°(Default)
OFF OFF
ON ON
ON
Cooling & Heating
(Default)
Cooling Only
Available
Heating Only
Available
REACTOR
CAPACITOR
BOARD
ON ON ON ON
Detection for Wrong Wiring
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