66
CN2
Connect to the outdoor controller circuit board (CN2)
1
-
5
:Outdoor power circuit board
➔
Transmitting signal
to the outdoor controller circuit board (0-5V DC)
2
-
5
: Zero cross signal (0-5V DC)
3
-
4
: Not used
6
-
5
: 16V DC
7
-
5
: 16V DC
1
7
Outdoor power circuit board
PUZ-A18/24NHA
PUZ-A18/24NHA-BS
PUY-A18/24NHA
PUY-A18/24NHA
1
PUY-A18/24NHA
1
-BS
1
3
(Red)
(White)
1
,
2
,
6
,
7
: +
5
: –
]
[
–
+
P1
N
L
N1
N1
W
V
U
P2
N2
Brief check of DIP-IPM and DIP-PFC
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 DIP-IPM
P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W
2. Check of DIP-PFC
P1 - L , P1 - N , L - N1 , N - N1
Note:The marks, L , N , N1 , N2 , P1 , P2 , U , V and W
shown in the diagram are not actually printed on the board.
LD1-LD2
280-380V DC
Connect to
the outdoor
controller
circuit board
(CNDC)
R, S
Connect to the ACL
208/230V AC
U, V, W
Connect to the compressor (MC)
Voltage among phases: 5V to 180V AC
CN5
Primary current detection
(Connect to the outdoor
noise filter circuit board
(CN5))
CN4
Connect from the
outdoor controller
circuit board
(CN4)
CN3
Thermistor
<Heat sink>
(TH8)
DIP-IPM
DIP-PFC
OC367C--3.qxp 07.6.20 0:54 PM Page 66
Содержание PUY-A12NHA
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