78
<CAUTION> CNF1 and CNF2 are high voltage.
11-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-P100VHA2.UK PUHZ-P125VHA2.UK PUHZ-P140VHA2.UK
PUHZ-P125VHA21.UK PUHZ-P140VHA21.UK
PUHZ-P100VHA3.UK PUHZ-P125VHA3.UK PUHZ-P140VHA3.UK
PUHZ-P100VHA3R1.UK PUHZ-P125VHA3R1.UK PUHZ-P140VHA3R1.UK
CNS
S1-S2: 230V AC
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)
21S4
Four-way valve
SV2
Bypass valve
(P125, P140 only)
CN4
Transmission to out-
door power circuit
board (CN4)
CN51
External signal output
• Compressor operating signal
• Abnormal signal
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
SV1/CH
Crankcase heater
(P125, P140 only)
Communication power supply
D71 Voltage
24V DC
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)
CNDC
280V DC
(1+, 3-)
(Outdoor power board)
+ -
63H
High Pressure
Switch
SW4
Test operation
SW6
Model select
SW5
Function switch,
model select
SW1
Forced defrost,
detect history
record reset,
refrigerant address
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Outdoor Pipe>
TH7/6
Thermistor
<Outdoor/
2-Phase Pipe>
VFG
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
(CNF1
7(+)-4(-))
VSP
(Voltage between pins of
C5A, C5B): DC 0V (when
stopped), DC 1– 6.5V
(when operated)
LEV-A
Linear Expansion
Valve
SWP
Pump down
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)
CNDM
1 to 2: Input of low-level sound priority mode
1 to 3: Input of external contact point
SW7
Demand control setting
To Next Page
Loading...
Need help?
General
