55
<CAUTION> TEST POINT
1
is high voltage.
10-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-FRP71VHA
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/
Outdoor 2-phase pipe>
V
FG
(Voltage between
right pins of PC5D,
pin 3 and pin 4)
(Same as
(CNF1
7
(+)-
4
(
–
))
V
SP
(Voltage between pins
of C5B): DC 0V
(when stopped),
DC 1– 6.5V
(when operated)
LEV-A,B,C
Linear expansion
valve
SWP
Pump down
CNM
Connect to A control
service tool
Communication power supply
DC Voltage
24V DC
CNF1
Connect to the fan motor
1
-
4
: 250-370V 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
250-370V DC
(
1
+,
3
–
)
Outdoor power
circuit board
+ –
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
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 (CN2)
1
-
5
: Reception from
power circuit board
2
-
5
: Zero cross signal
(0-5V DC)
3
,
4
: Not used
6
-
5
: 15V DC
7
-
5
: 15V DC
CN52C
(Connect to the noise
filter circuit board
(CN52C))
CNDM
1
to
2
: Input of low-level sound priority mode
1
to
3
: Input of external contact point
SW7
Demand control setting
Model select
SV3
Solenoid valve
SV2
Solenoid valve
SV1
Solenoid valve
CNS2
S1-S2: 230V AC
(+: D72 Cathode, –: CNS-A 2pin)
TH34
Thermistor
<Comp. surface>
63HS
High pressure
sensor
OCH544
