Mitsubishi Heavy Industries FDCW60VNX-W, Installation Manual

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70
Disturbance in comfort
Alarm list
Alarm
nr.
Alarm text on the
display
Description May be due to
157 Low lp cooling Protection against freezing in water HX during
cooling operation Ŷ/RZQRZDWHUÀRZ
162 High condenser out
temperature Too high temperature out from the condenser.
Self-resetting. Ŷ/RZÀRZGXULQJKHDWLQJRSHUDWLRQ
Ŷ7RRKLJKVHWWHPSHUDWXUHV
163 High condenser in
temperature Too high temperature into the condenser.
Self-resetting. Ŷ7HPSHUDWXUHJHQHUDWHGE\DQRWKHUKHDWVRXUFH
183 Defrosting in progress Not an alarm, but an operating status. Ŷ6HWZKHQWKHKHDWSXPSUXQVWKHGHIURVWLQJ
procedure
220 High pressure alarm BP4 has been above 4,15MPa 5 times within 60
minutes. Ŷ,QVX൶FLHQWDLUFLUFXODWLRQRUEORFNHGKHDW
exchanger
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Ŷ6HUYLFHYDOYHFORVHG
Ŷ'HIHFWLYHFRQWUROERDUGLQ)'&:
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Ŷ'HIHFWLYHIXVH)$
224 Fan alarm from heat
pump Deviations in the fan speed in FDCW. Ŷ7KHIDQFDQQRWURWDWHIUHHO\
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228 Failed defrosting 10 aborted defrost due to alarm: 418,419 or 343 Ŷ7RRORZZDWHUÀRZ
Ŷ7RRORZUHWXUQWHPSHUDWXU
230 Hot gas alarm Temperature deviation on the hot gas sensor
(Tho-D) twice within 60 minutes or for 60
minutes continuously. Ŷ6HQVRUGRHVQRWZRUNVHHVHFWLRQ$PELHQW
temperature sensor")
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261 High HWX temp Temperature deviation on the heat exchanger
VHQVRU7KR55¿YHWLPHVZLWKLQ
minutes or for 60 minutes continuously.
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"Disturbances in comfort")
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exchanger
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262 Inv. err. When IPM (Intelligent power module) displays
)2VLJQDO)DXOW2XWSXW¿YHWLPHVGXULQJD
60-minute period.
Can occur when 15V power supply to the
inverter PCB is unstable.