Mitsubishi FDUA125VNPWVH - (18) Silent mode; (19) Broken wire detection on temperature sensor; (20) Refrigerant ejection control

'22 • PAC-SM-412
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(19) Broken wire detection on temperature sensor
(a)Outdoorunitheatexchangertemperaturesersor,outdoorairtemperaturesensor
Ifthe following is detectedfor5secondscontinuously within 2minutesto2minutesand 20secondsafterthe
compressorONorwithin20secondsafterpowerON,thecompressorstops.Afteradelayof3minutes,itrestarts
but,ifthesameisdetectedrepeatedly3timeswithin40minutes,thecompressorstopswiththeanomalousstop.
Note(1)Duringdefrostoperationandfor3minutesaftertheendofdefrostoperation,itisnotdetected.
•Outdoorunitheatexchangertemperaturesensor:-55°Corlower
•Outdoorairtemperaturesensor:-55°Corlower
(b)
Dischargepipetemperaturesensor
If the following is detectedfor 5 seconds continuously within 10 minutes to 10 minutes and 20 secondsafter the
compressorON,thecompressorstops.Afteradelayof3minutes,itrestartsbut,ifthesameisdetectedrepeatedly3
timeswithin40minutes,thecompressorstopswiththeanomalousstop.
Note(1)Duringdefrostoperationandfor3minutesaftertheendofdefrostoperation,itisnotdetected.
•Dischargepipetemperaturesensor:-25°Corlower
(20) Refrigerant ejection control
(a) Purpose
Countermeasuresagainstinsucientoillevelunderlowoutdoorairtemperature
(b) Operating conditions
Whenallofthefollowingconditionsaresatised
(i)Whentheoperationmodeisheating
(ii)Whentheoutdoorairtemperatureislessthan10°C
(iii) When the relation between the compressor stop time and the outdoor air temperature
(TH2) falls under the shaded area
TH2 (Outdoor air temperature) °C
Compressor stop time (h)
(c) Reset condition
(i)Whentheoperatingmodeischangedfromheatingtonon-heating
(18) Silent mode
As“Silentmodestart”signalisreceivedfromtheremotecontrol,itoperatesbydroppingtheoutdoorfantap.
Model
Outdoor fan tap (Upper limit)
FDC125VNP-W Cooling:7thspeed,Heating:7thspeed
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