Test Point Diagram Outdoor Controller Circuit Board - Mitsubishi Electric Mr.SERVICE PUHZ-HRP71VHA Service Manual

11-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-HRP71VHA
SW7
Demand control setting
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,B,C
Linear expansion
valve
63L
Low pressure
switch
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Outdoor pipe>
TH7/6
Thermistor
<Outdoor/
2-phase pipe>
63H
High pressure
switch
TH32, TH33
Thermistor
<Outdoor pipe>
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
(when operated)
CNF1, CNF2
Connect to the fan motor
1-4: 280 - 380V DC
5-4: 15V DC
6-4: 0-6.5V DC
7-4: 15V DC(When stopped)
7.5V DC(When operated)
(0V-15V pulse)
PUHZ-HRP100VHA
SW1
Forced defrost, detect history record reset,
refrigerant address
<CAUTION> TEST POINT1 is high voltage.
PUHZ-HRP100YHA
CNDC
+ -
280 - 380V DC (1+, 3-)
Communication power supply
(Outdoor power circuit
D71 Voltage
board for HRP71, 100V)
24V DC
(Noise filter circuit board
for HRP100, 125Y)
62
PUHZ-HRP125YHA
CN51
External signal output
• Compressor operat-
ing signal
• Abnormal signal
CNDM
1 to 2:
Input of low-level
sound priority mode
1 to 3:
Input of external con-
tact point
CN52C
Connect to the noise fil-
ter circuit board (CN52C)
(HRP71,100V)
CN4
Transmission to out-
door power circuit
board (CN4)
SV2
Bypass valve
21S4
Four-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
(HRP100, 125Y)
18V DC
(HRP71, 100V)
6-5: 16V DC
7-5: 16V DC
CNAC
2 to 4:
Power supply for outdoor
controller circuit board
(220V-240V AC)
1 to 3:
Power supply for indoor
and outdoor unit connec-
tion wire
(220-240V AC)
CNS
S1-S2: 220-240V AC