Mitsubishi Electric PUHZ-W50VHA-BS Service Manual page 78

Air to water heat pump
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SW2 setting
Comp. surface temperature (TH33)
(for W50VHA(R1,R2)/W85VHAR1)
Comp. surface temperature (TH34)
ON
(for HW
3~217
1
2 3 4 5 6
Outdoor suction pipe temperature (TH33)
(for HW112/140) -39~88
ON
1
2 3 4 5 6
LEV-C opening pulse (for HW112/140)
0~500
ON
1
2 3 4 5 6
Requested capacity step (Q STEP)
ON
0~7
1
2 3 4 5 6
U9 Error details (To be shown while
error call is deferred.)
ON
1
2 3 4 5 6
OCH439H
Display detail
HA2R3)
The black square (
Explanation for display
3~217
(When the temperature is 100: or more, the
hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 130:;
0.5 secs.
-39~88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 secs.
0~500
(When it is 100 pulse or more, hundreds digit are
displayed by turns.)
0~7
Error details
(No error)
Over voltage
Power PCB
Insuffi cient voltage
Power PCB
Input current sensor
Control PCB
error
Abnormal power
synchronous signal
Power PCB
(W50)
PFC error (W50)
(Over voltage,
Power PCB
insuffi cient voltage,
over current)
ACTM error
Control PCB
78
) indicates a switch position.
0.5 secs. 2 secs.
1
30
0.5 secs. 2 secs.
15
Cause
Code
00
01
02
04
08
10
20
Unit
:
:
:
Step
Code
display

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