Mitsubishi Electric EHGT17D-YM9ED Service Manual page 76

SW2 setting
Error postponement code history (3)
of heat pump unit
ON
1 2 3 4 5 6
Error history (3) (Oldest)
Alternate display of abnormal unit num-
ON
ber and code
1 2 3 4 5 6
Error thermistor display
ON
When there is no error thermistor,
"–" is displayed.
1 2 3 4 5 6
Operation frequency on error occurring
0 to 255
ON
1 2 3 4 5 6
Fan step on error occurring
ON
0 to 10
1 2 3 4 5 6
Return water temperature on error occurring
ON
0 to 100
1 2 3 4 5 6
Liquid pipe temperature (TH2) on error
occurring
ON
−39 to 88
1 2 3 4 5 6
Pressure saturation temperature (T
Indoor pipe temperature/Cond./Eva.(TH5)
ON
on error occurring
−39 to 88
1 2 3 4 5 6
Outside temperature (TH7) on error
occurring
ON
−39 to 88
1 2 3 4 5 6
Heat pump unit heat sink temperature
(TH8) on error occurring
ON
−40 to 200
1 2 3 4 5 6
OCH722A
Display detail
)/
63HS
The black square (
Explanation for display
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
"00" is displayed in case of no postponement.
When no error history, "0" and "– –" are displayed by
turns.
3: Liquid pipe temperature (TH3)
4: Discharge pipe temperature (TH4)
7: Ambient temperature (TH7)
8: Heat sink temperature (TH8)
32: Brine inlet temperature (TH32)
33: Comp. surface temperature (TH33)
34: Brine outlet temperature (TH34)
0 to 255
(When it is 100 Hz or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 125 Hz;
0.5 s
0 to 10
0 to 100
−39 to 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
(Example) When −15°C;
0.5 s
−39 to 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
(Example) When −15°C;
0.5 s
−39 to 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
(Example) When −15°C;
0.5 s
−40 to 200
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by turns.)
76
■
) indicates a switch position.
0.5 s 2 s
1 25
0.5 s 2 s
15
0.5 s 2 s
15
0.5 s 2 s
15
Unit
Code
display
Code
display
Code
display
Hz
Step
:
:
:
:
: