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Outdoor power circuit board
PUZ-ZM60VHA(-ET/-ER)
PUZ-ZM71VHA(-ET/-ER)
PUZ-ZM71VHAR1(-ET)
LI, NI
Voltage of 230 VAC is
input (Connect to the
terminal block (TB1))
CNAC1, CNAC2
230 VAC
Connect to the out-
door controller circuit
board (CNAC)
U, V, W
Connect to the com-
pressor (MC)
Voltage among phases:
5 to 180 VAC
IC600
DIP-IPM
CN4
Connect from the
outdoor controller
circuit board
(CN4)
CN6
Thermistor
<Heat sink> (TH8)
OCH653C
Brief Check of DIP-IPM and DIODE MODULE
If they are short-circuited, it means that they are broken.
Measure the resistance in the following points (connectors, etc.).
1. Check of DIP-IPM
P2 - U2 , P2 - V2 , P2 - W2 , N2 - U2 , N2 - V2 , N2 - W2
P3 - U3 , P3 - V3 , P3 - W3 , N3 - U3 , N3 - V3 , N3 - W3
2. Check of DIODE MODULE
P1 - L , P1 - N , L - N1 , N - N1
Note: The marks,
L , N , N1 , N2 , N3 , P1 , P2 , P3 , U2 , U3 , V2 , V3 , W2 , and W3
shown in the diagram are not actually printed on the board.
E2, EI, E3, E4
Connect to earth
U3
W3
N3
P3
V3
68
U2
W2
P2
V2
N2
CN2
Connect to the outdoor controller circuit board (CN2)
1–5: Outdoor power circuit board
to the outdoor controller circuit board (0–5 VDC)
2–5: Zero cross signal (0–5 VDC)
[
3–4: Not used
1, 2, 6, 7 : +
6–5: 16 VDC
7–5: 16 VDC
CNDC
280–380 VDC (1: +, 3−)
Connect to the out-
door controller circuit
board (CNDC)
TB1A, TB3A, TB1B,
TB3B
Connect to DCL
IC500
DIP-IPM
Transmitting signal
→
]
5 : –
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