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5-29
5
P29 Lack of INV compressor wiring, INV compressor actuation failure
(including locked), DCCT failure
Error Diagnosis
2.
Error Detection Method
1.
Abnormal current is detected at DCCT before start-up.
Open-wire of compressor and/or backspin detected.
Start-up failed during overcurrent and/or step-out detected.
Secondary current is not detected during INV compressor is running.
1-1
1-2
2-1
Yes
No
1 Wiring
Correct wiring
connections.
1-2
Disconnected parts, miswiring and/or poor connections (loose)
are observed in the connections of outdoor board(s) that are
connected by wiring from the HIC PC board. *1
Yes
No
Correct wiring
connections.
Disconnected parts, miswiring and/or poor connections (loose)
are observed in the connections of HIC PC board(s) that are
connected by wiring to a compressor. *1
2-1
2-2
3-1
Yes
No
2
Compressor
wiring
Correct
2-2
Conditions such as burned terminal covers and/or discolored
terminals are observed at the connectors of the compressor
terminals. *1
Yes
No
Eliminate looseness
by changing the
terminals, or crimping
the terminals again.
Disconnections and/or miswiring is observed in the connections
of the compressor terminals. *1
4
4-1
Check the
outdoor
control
PC board
Replace the control PC board and operate the unit.
3-1
3-2
4-1
Yes
No
3 Check the
HIC PC
boards
Replace the HIC board.
3-2
Replace the HIC PC board and operate the unit. (Apply putty
and screws must not be loose) Does it operate normally?
Yes
No
See what happens.
See what happens.
The results of the pass/fail tests for the following HIC PC board
IPM show it to be outside the range of the resistance of a
conforming part.
Checking for looseness of compressor terminals by wiggling them has the adverse effect of loosening them, so do not do it.
Evaluate them by discoloration of wire insulation near the terminal.
*1
Measure with an analog tester. (Set to the k ohm range)
Measure the board by itself. (Remove wires connected from other parts.)
Measure using IPM terminals.
Conforming part resistance value (measure with an analog tester)
Excepting the parts of “
value is “0 = short-circuit”.
”, it is acceptable if a small resistance value appears as a reference value unless the
HIC board IPM Pass/Fail Tests
Tester terminals
-
Resistance value (ohm)
U
V
W
U
1 k to 5 k
V
1 k to 5 k
W
1 k to 5 k
NU
U
V
W
P
U
N
P
+
Tester terminals
+
Resistance value (ohm)
U
N
P
-
U
100 k to
100 k to
V
100 k to
W
100 k to
1 k to 5 k
1 k to 5 k
1 k to 5 k
5 k to 10 k 100 k to 100 k to 100 k to 100 k to
Excepting the parts of “
value is “0 = short-circuit”.
”, it is acceptable if a small resistance value appears as a reference value unless the
Tester terminals
-
Resistance value (ohm)
U
V
W
U
1 k to 10 k
V
1 k to 10 k
W
1 k to 10 k
HIC-
U
V
W
HIC+
-
C
I
H
+
C
I
H
+
Tester terminals
+
Resistance value (ohm)
-
C
I
H
+
C
I
H
-
U
20 k to
20 k to
V
20 k to
W
20 k to
1 k to 10 k 1 k to 10 k 1 k to 10 k 5 k to 20 k 20 k to
20 k to
20 k to
20 k to
SM830262-00_大洋州向け シングル天埋_TD&SM.indb 2
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Содержание S-160PE1R5A
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