Mitsubishi Electric PUHZ-P100VHA2 Service Manual page 78

Outdoor controller circuit board
PUHZ-P100VHA3R2.UK
PUHZ-P100VHA4.UK
PUHZ-P100YHA.UK
PUHZ-P100YHAR1.UK
PUHZ-P100YHA2.UK
SW1
Forced defrost,
SW7
detect history
Demand control setting
record reset,
refrigerant address
SW6
Model select
SW4
Test operation
SWP
Pump down
SW5
Function switch
SW8
Pipe replace
Wiring replace
CNM
Connect to A control
service tool
CNMNT
Connect to
M-NET adapter (CN5)
CNVMNT
Connect to
M-NET adapter (CND)
LEV-A
Linear Expansion
Valve
TH3
Thermistor
<Liquid>
TH7/6
Thermistor
<Ambient/
2-phase pipe>
63H
High Pressure
Switch
TH32
Thermistor
<Comp. Surface>
V
FG
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
7 4
(CNF1 (+)- (-))
V
SP
(Voltage between pins of
C5A, C5B): DC 0V (when
stopped), DC 1– 6.5V
CNF1, CNF2
(when operated)
Connect to the fan motor
1-4: 250-330V DC
5-4: 15V DC
6-4: 0-6.5V DC
7-4: 15V DC(When stopped)
OCH415F
PUHZ-P125VHA3R2.UK
PUHZ-P125VHA3R3.UK
PUHZ-P125YHA.UK
PUHZ-P125YHAR1.UK
PUHZ-P125YHAR2.UK
CNDM
1 to 2: Input of low-level sound priority mode
1 to 3: Input of external contact point
7.5V DC(When operated)
(0V-15V pulse)
<CAUTION> TEST POINT 1 is high voltage.
PUHZ-P140VHA3R2.UK
PUHZ-P140VHA3R3.UK
PUHZ-P140YHA.UK
PUHZ-P140YHAR1.UK
PUHZ-P140YHAR2.UK
CNDC
+ -
280V DC
Communication power supply
(1+, 3-)
D71 Voltage
(Outdoor power circuit
24V DC
board for P100-140V)
(Noise filter circuit board
for P100-140Y)
78
CN51
External signal output
• Compressor operating signal
• Abnormal signal
CN52C
(Connect to the noise
filter circuit board
(CN52C)) (P100-140V)
CN4
Transmission to out-
door power circuit
board (CN4)
SV1/CH
Crankcase heater
(P125,P140 only)
SV2
Bypass valve
(P125,P140 only)
21S4
4-way valve
CN2
Connect to the outdoor
power circuit board (CN2)
1-5: Reception from
power circuit board
2-5: Zero cross signal
(0-5V DC)
3,4: Not used
6-5: 16V DC
7-5: 16V DC
CNAC
2 to 4: Power supply for
outdoor controller circuit
board (230V AC)
1 to 3: Power supply for
indoor and outdoor unit
connection wire
(230V AC)
CNS
S1-S2: 230V AC