Mitsubishi PUY-A24NHA6 - Page 89

89
SW2setting
Displaydetail
Explanationfordisplay Unit
˚F
[:]
32to360[0to182˚C]
(Whenthetemperatureis100˚Formore,
hundredsdigit,tensdigitandonesdigitare
displayedbyturns.)
(Example)When150˚F;
0.5s0.5s2s
Subcoolonerroroccurring.SC
32to266
Cooling=TH6-TH3
Heating=TH5-TH2
32to266[0to130˚C]
(Whenthetemperatureis100˚Formore,
hundredsdigit,tensdigitandonesdigitare
displayedbyturns.)
(Example)When115˚F;
0.5s0.5s2s
Thermostat-ontimeuntilerrorstops
0to999
0to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s0.5s2s
50
1
1
ON
2 3 4 5 6
Dischargesuperheatonerroroccurring
SHd
32to360
Cooling=TH32−TH6
Heating=TH32−TH5
1
ON
2 3 4 5 6
1
ON
2 3 4 5 6
˚F
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Minute
15
1
15
4
1
ON
2 3 4 5 6
Normal
Overvoltage error
Undervoltage error
Input current sensor error.
L1 or L2-phase open error.
Abnormal power synchronous signal
PFC error (A12, 18, 24NHA)
(Overvoltage/Undervoltage/Overcurrent)
PFC/ACTM error
Undervoltage
Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
L
1 phase open error (04) + PFC error (10) = 14
Power circuit board
Controller circuit board
Controller circuit board
Power circuit board
Power circuit board
Check CNAF wiring.
Defective ACTM/P.B.
–
Description Detection point Display
00
01
02
04
08
10
20
U9ErrorstatusduringtheError
postponementperiod
Code
display
Theblacksquare(■)indicatesaswitchposition.
1
ON
2 3 4 5 6
Pipetemperature/Suction(TH33)
−58to194
−58to194[−50to90:]
(Whenthecoilthermistordetects0˚Forbelow,“–”
andtemperaturearedisplayedbyturns.)
(Example)When-10˚F;
0.5s0.5s2s
˚F
[:]
10
OCH577A