36
Outdoor power circuit board
PUHZ-W85VHA2.UK
PUHZ-W85VHA2R1.UK
PUHZ-W85VHA2R3.UK
PUHZ-W85VHA2R4.UK
PUHZ-W85VHA2R5.UK
PUHZ-W85VHA2-BS.UK
PUHZ-W85VHA2R1-BS.UK
PUHZ-W85VHA2R3-BS.UK
PUHZ-W85VHA2R4-BS.UK
PUHZ-W85VHA2R5-BS.UK
TABP1 *1
Connect to
ACTM
+
TABP2
Connect to the
ACTM
CN4
Connect to the
outdoor controller
circuit board (CN4)
CN2
Connect to the outdoor controller circuit board
(CN2)
1
–
5
: Transmitting signal to the outdoor
controller circuit board (0–5 V DC)
2
–
5
: Zero cross signal (0–5 V DC)
3
,
4
: 18 V DC
6
–
5
: 16 V DC
7
–
5
: 16 V DC
CN3
Thermistor (TH8)
<Heat sink>
CN5
Detection of input
current
Connect to the
outdoor noise filter
circuit board (CN5)
CNDC
280–380 V DC (
1
+,
3
–)
Connect to the outdoor
controller circuit board
TABS/TABT
Connect to the
outdoor noise
filter circuit
board
Voltage among
phases: 230 V
AC
Brief Check of POWER MODULE
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 diode bridge
TABP1-TABS, TABN1-TABS, TABP1-TABT, TABN1-TABT
2. Check of DIP-IPM
P-U, P-V, P-W, N-U, N-V, N-W
TABN2
Connect to ACTM
TABU/V/W
Connect to the compressor (MC)
Voltage among phases: 10–180 V AC
TABN1 *1
Connect to
ACTM
—
DIP-IPM
CNAF
Connect to ACTM
*1 Voltage between TABP1
and TABN1:207VDC
OCH465D
