Mitsubishi Electric PUHZ-P100VHA2 Service Manual page 98

SW2 setting
Discharge super heat on error occurring
SHd
0 - 255
ON
Cooling = TH4-TH6
Heating = TH4-TH5
1 2 3 4 5 6
Cooling = TH32-TH6
Heating = TH32-TH5
Sub cool on error occurring. SC
0 - 130
ON
Cooling = TH6-TH3
Heating = TH5-TH2
1 2 3 4 5 6
Thermo-on time until error stops
0 - 999
ON
1 2 3 4 5 6
Indoor pipe temperature/Liquid
ON
(TH2 (3))
Indoor 3
−39 - 88
1 2 3 4 5 6
Indoor pipe temperature / Cond./ Eva.
(TH5 (3))
ON
Indoor 3
−39 - 88
1 2 3 4 5 6
U9 error details (To be shown while
error call is deferred.)
ON
1 2 3 4 5 6
OCH415F
Display detail
( )
VHA2
(1)
VHA3(R1)
( )
VHA3R2,
VHA3R3, VHA4
YHAR1,
YHAR2, YHA2
The black square (■) indicates a switch position.
Explanation for display
0 - 255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 150°C;
0.5 secs.
0 - 130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 115°C;
0.5 secs.
0 - 999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
0.5 secs.
−39 - 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
−39 - 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
When there is no indoor unit, "00" is displayed.
Description
Normal
Overvoltage error
Undervoltage error
Input current sensor error
L -phase open error
1
Abnormal power synchronous signal
ACTM/IGBT error (P100-140V)
Undervoltage
* Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
L phase open error (04) + ACTM/IGBT error (20) = 24
1
98
0.5secs. 2 secs.
1 50
0.5secs. 2 secs.
1 15
0.5secs. 2 secs.
4 15
Display
00
01
02
04
08
20
Unit
:
:
Minute
:
:
Code
display