53
12-9. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-RP200YHA PUHZ-RP200YHA
1
PUHZ-RP250YHA PUHZ-RP250YHA
1
Communication
power supply
D71 Voltage
developed across:
16-30V DC
–
+
CNS
(Indoor/outdoor unit
connecting wire)
CNAC
2
to
4
: Power supply for
outdoor controller
circuit board
(220V-240V AC)
1
to
3
: Power supply for
indoor/outdoor unit con-
nection wire
(220V-240V AC)
CN2
Connect to the outdoor
power circuit board (CN2)
1
-
5
:
Power circuit board
➔
Transmitting signal to
the controller circuit board
(0-5V DC)
2
-
5
: Zero cross signal
(0-5V DC)
3
-
4
: Not used
6
-
5
: 15V DC
7
-
5
: 15V DC
[
5
: –
1
,
2
,
6
,
7
: + ]
21S4
Four-way valve
63H
High pressure switch
63L
Low pressure switch
SV2
Replace valve
CN4
Transmission
to outdoor
power circuit
board (CN4)
LED1, LED2
Operating inspection
indicators
SW10
Model setup
CN31
Emergency
operation
SW4
Test operation
SW6
Model setup
SW8
Model setup
Replacement operation
SW5
Function switch
SWP
Pump down
SW1
Forced defrost,
detect history
record reset,
refrigerant address
CNMNT
Connected to outdoor
M-NET board
CNM
A-control service
inspection kit
CNVMNT
Connected to outdoor
M-NET board
CNDM
1
to
2
: Input of silent mode
1
to
3
: Input of external
contact point
LEV-A
Linear expansion
valve
TH4
Thermistor
<Discharge>
TH3
Thermistor
<Outdoor pipe>
TH7
Thermistor<Outdoor>
TH6
Thermistor
<Outdoor 2-phase pipe>
CN331
Control signal for
outdoor FAN
controller circuit board
(CN6)
CNDC
310V~340V DC
Connect from
outdoor noise fil-
ter circuit board
(CNDC)
–
+
}
CN332
Power supply for outdoor
FAN controller circuit
board (CN2)
1
—
2
: 18VDC
[
2
: –
1
: + ]
OC338B-2.qxp 06.7.11 10:54 AM Page 53
