68
Disturbance in comfort
Alarm
nr.
Alarm text on the
display
Description
May be due to
279
Sensor fault from heat
pump
Sensor fault, hot gas in FDCW (Tho-D).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board in FDCW
280
Sensor fault from heat
pump
Sensor fault, suction gas in FDCW (Tho-S)
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Service valve closed
■ Defective control board in FDCW
281
Sensor fault from heat
pump
Sensor fault, low pressure transmitter in FDCW.
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Service valve closed
■ Defective control board in FDCW
■
Fault in the refrigerant circuit
294
Incompatible heat pump
Heat pump and indoor module do not work
properly together due to technical parameters.
■ Outdoor module and indoor module are not
compatible.
343
Low temp water out
Low water out temperature during cooling or
tank defrost operation
■ Too low water fl ow
■ Too low return temperatur
347
Temp high press
Temporary high pressure alarm
■ No/low water fl ow
■ Air in water system
403
Sensor fault from PCA
154
Sensor fault, Sensor incoming water in indoor
unit (BT3).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board AA23 in indoor unit.
404
Sensor fault from PCA
154
Sensor fault, Sensor high pressure heating/
low pressure cooling in indoor unit (BP4).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board AA23 in indoor unit.
412
Sensor fault from PCA
154
Sensor fault, Sensor outgoing water in indoor
unit (BT12).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board AA23 in indoor unit.
415
Sensor fault from PCA
154
Sensor fault, Sensor fl uid pipe in indoor unit
(BT15).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board AA23 in indoor unit.
418
Low temp water out
Anti-freeze protection water heat exchanger
during defrost.
■ Too low water fl ow
419
Freeze prot. exch. defr.
Anti-freeze protection water heat exchanger
during defrost.
■ Too low water return temperature
Содержание HMK60
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Страница 104: ...1 2 FDCW71VNX FDCW100VNX LEK LEK ...
Страница 189: ...85 Technical data Electrical circuit diagram HSB100 ...
Страница 190: ...86 Technical data HMK100 RC HY FDCW FDCW FDCW ...
Страница 191: ...87 Technical data FDCW FDCW RC HY RC HY RC HY ...
Страница 192: ...88 Technical data RC HY RC HY RC HY ...
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Страница 199: ...95 Technical data sheet 3 ...
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Страница 277: ...71 Technical data Electrical circuit diagram HSB140 ...
Страница 280: ...74 Technical data sheet 3 ...
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Страница 286: ...80 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Страница 287: ...81 Technical data sheet 6 ...