126
13-2-6. Outdoor Power circuit board
PUHZ-RP4VHA PUHZ-RP4VHA-A
PUHZ-RP5VHA PUHZ-RP5VHA-A
PUHZ-RP6VHA PUHZ-RP6VHA-A
PUHZ-RP4VHA
1
PUHZ-RP4VHA
1
-A
PUHZ-RP5VHA
1
PUHZ-RP5VHA
1
-A
PUHZ-RP6VHA
1
PUHZ-RP6VHA
1
-A
CN5
Detection of
primary current
(Connect to the
outdoor noise filter
circuit board (CN5))
CN3
Temperature
<Heat sink>
(TH8)
CN4
Connect to the outdoor
controller circuit board
(CN4)
CNAF
Connect to
ACTM
TAB-U, TAB-V, TAB-W
Connect to the compressor (MC)
Voltage among phases:
5V-180V AC
SC-R, SC-S
Connect to the outdoor
noise filter circuit board
(LO, NO)
220V-240V AC
SC-P2, SC-N2
Connect to ACTM and
the soothing capacitor
SC-P1
Connect to 52C
SC-N1
Connect to ACTM
13-2-6. Outdoor M-NET board (optional)
LED1
Energizing
display of
M-NET board
(5V power
supply)
LED5
Energizing
display of
M-NET board
(12V power
supply)
CN2M
Connect to M-NET
LED4
Receiving
LED3
Transmitting
LED3
Outdoor unit
connecting display
CN5
Serial
communication
with outdoor board
SW11
M-NET address (Ones digit)
SW12
M-NET address
(Tens digit)
SW1
Switch for
communication
display between
M-NET and board
CND
Power supply (5V/12V) input
2
to
3
5V DC Input
1
to
3
12V DC Input
)
)
CNDC
300V-370V DC
Connect to the outdoor controller circuit board
(CNDC)
–
+
}
CN2
Connect to the outdoor controller circuit
board (CN2)
1
-
5
: Power circuit board
➔
Transmitting
signal to the controller board (0-5V DC)
2
-
5
: Zero cross signal (0-5V DC)
3
-
4
: 18V DC
6
-
5
: 15V DC
7
-
5
: 15V DC
[
5
: –
1
,
2
,
6
,
7
: + ]
[
4
: –
3
: + ]
1
,
2
: +
3
: –
]
[
Brief Check of POWER MODULE
W
Usually, they are in a state of being short-circuited if they are broken.
Measure the resistance in the following points (connectors, etc.).
If they are short-circuited, it means that they are broken.
1. Check of POWER MODULE
1
.Check of DIODE circuit
L - P1 , N - P1 , L - N1 , N - N1
2
.Check of IGBT circuit
P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W
P1
P2
N1
L
N
N2
U
V
W
POWER
MODULE
Note:The marks, L , N , N1 , N2 , P1 , P2 , U , V and W
shown in the diagram above are not actually printed on the board.
OCT04A-5.qxp 04.9.29 9:18 AM Page 126
