Test Point Diagram Outdoor Controller Circuit Board - Mitsubishi Electric PUHZ-P100VHA2 Service Manual

11-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-P100VHA2.UK
PUHZ-P125VHA2 .UK
1
PUHZ-P100VHA3.UK
PUHZ-P100VHA3R1.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,
model select
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
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Outdoor Pipe>
TH7/6
Thermistor
<Outdoor/
2-Phase Pipe>
63H
High Pressure
Switch
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: 250-330V 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)
OCH415G
PUHZ-P125VHA2.UK
PUHZ-P140VHA2 .UK
1
PUHZ-P125VHA3.UK
PUHZ-P125VHA3R1.UK
CNDM
1 to 2: Input of low-level sound priority mode
1 to 3: Input of external contact point
CNDC
280V DC
(1+, 3-)
(Outdoor power board)
<CAUTION> CNF1 and CNF2 are high voltage.
PUHZ-P140VHA2.UK
PUHZ-P140VHA3.UK
PUHZ-P140VHA3R1.UK
+ -
Communication power supply
D71 Voltage
24V DC
78
CN51
External signal output
• Compressor operating signal
• Abnormal signal
CN4
Transmission to out-
door power circuit
board (CN4)
SV1/CH
Crankcase heater
(P125, P140 only)
SV2
Bypass valve
(P125, P140 only)
21S4
Four-way valve
CN2
Connect to the outdoor
power circuit board
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