Mitsubishi Electric Mr.Slim PUHZ-SHW230YKA2, Руководство по обслуживанию

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33
OCH594B
Outdoor controller circuit board
PUHZ-SHW230YKA2R2
CNS
S1-S2: 230 V AC
CNAC
2
–
4
:
Power supply for outdoor
controller circuit board
(230 V AC)
1
–
3
:
Power supply for
indoor and outdoor unit
connection wire
(230 V AC)
CNF1, CNF2
Connect to the fan motor
1
–
4
: 250–330 V DC
5
–
4
: 15 V DC
6
–
4
: 0–6.5 V DC
7
–
4
: 15 V DC(When stopped)
7.5 V DC(When operated)
(0–15 V pulse)
21S4
4-way valve
63H
High pressure
switch
CN4
Transmission to
outdoor power circuit
board (CN4)
SW4
Test operation
SW6
Model select
SW5
Function switch
Model select
SW1
Manual defrost, detect history record reset,
refrigerant address
CNDM
1
–
2
:
Input of low-level
sound priority mode
1
–
3
:
Input of external
contact point
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Liquid>
TH7/6
Thermistor
<Ambient,
2-phase pipe>
CNDC
280 V DC (
1
+,
3
−)
(Noise filter circuit board)
V
FG
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
(CNF1
7
(+)-
4
(−))
V
SP
(Voltage between pins
of C5A, C5B):
0 V DC (when stopped),
1–6.5 V DC (when oper-
ated)
SW7
Demand control setting
CN51
External signal output
• Compressor
operating signal
• Abnormal signal
LEV-A,B,C
Linear expansion
valve
SWP
Pump down
SW8
Pipe replace
Wiring replace
CNM
Connect to A control
service tool
CN2
Connect to the outdoor
power circuit board (CN2)
1
–
5
: Reception from
power circuit board
2
–
5
: Zero cross signal
(0–5 V DC)
3
–
4
: Not used
6
–
5
: 16 V DC
7
–
5
: 16 V DC
TH32
Thermistor
<Suction>
63L
Low pressure switch
63HS
Pressure sensor
TH34
<Comp. Surface>
SW9
Function switch
SV1
Option
(Drain hose heater output)