80
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
■ Low/no water fl ow
162
High condenser out
temperature
Too high temperature out from the condenser.
Self-resetting.
■ Low fl ow during heating operation
■ Too high set temperatures
163
High condenser in
temperature
Too high temperature into the condenser.
Self-resetting.
■ Temperature generated by another heat source
183
Defrosting in progress
Not an alarm, but an operating status.
■ Set when the heat pump runs the defrosting
procedure
220
High pressure alarm
BP4 has been above 4,15MPa 5 times within 60
minutes.
■ Insuffi
cient air circulation or blocked heat
exchanger
■ Expansion valve not correctly connected
■ Service valve closed
■ Defective control board in FDCW
■ Low or no fl ow during heating operation
■ Defective circulation pump
■ Defective fuse, F(4A)
221
Low pressure alarm
Tool low value on the low pressure semsor 3
times within 60 minutes
■ Open circuit or short circuit on input for low
pressure sensor
■ Defective low pressure sensor
■ Defective control board in FDCW
■ Open circuit or short circuit on input for
suction gas sensor (Tho-S)
■ Defective suction gas sensor (Tho-S)
223
Com. fl t from the heat
pump
Communication between the control board and
the communication board is interrupted. There
must
■ Any circuit breakers for FDCW off
■ Incorrect cable routing
224
Fan alarm from heat
pump
Deviations in the fan speed in FDCW.
■ The fan cannot rotate freely
■ Defective control board in FDCW
■ Defective fan motor
■ Control board in FDCW dirty
■ Fuse (F2) blown
228
Failed defrosting
10 aborted defrost due to alarm: 418,419 or 343
■ Too low water fl ow
■ Too low return temperatur
230
Hot gas alarm
Temperature deviation on the hot gas sensor
(Tho-D) twice within 60 minutes or for 60
minutes continuously.
■ Sensor does not work (see section "Ambient
temperature sensor")
■ Insuffi
cient air circulation or heat exchanger
■ Blocked
■ If the fault persists during cooling, there may
be an insuffi
cient amount of refrigerant.
■ Defective control board in FDCW
Summary of Contents for HMK60
Page 2: ...1 2 ...
Page 87: ...85 Technical data Electrical circuit diagram HSB60 ...
Page 88: ...86 Technical data HMK60 RC HY FDCW60VNX A FDCW60VNX A 2 FDCW60VNX A 3 ...
Page 89: ...87 Technical data FDCW60VNX A 2 FDCW60VNX A 3 RC HY RC HY RC HY ...
Page 90: ...88 Technical data RC HY RC HY RC HY ...
Page 93: ...91 Technical data sheet 3 ...
Page 94: ...92 Technical data sheet 4 ...
Page 97: ...95 Technical data sheet 3 ...
Page 98: ...96 Technical data sheet 4 ...
Page 99: ...97 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Page 100: ...98 Technical data sheet 6 ...
Page 101: ......
Page 104: ...1 2 FDCW71VNX FDCW100VNX LEK LEK ...
Page 189: ...85 Technical data Electrical circuit diagram HSB100 ...
Page 190: ...86 Technical data HMK100 RC HY FDCW FDCW FDCW ...
Page 191: ...87 Technical data FDCW FDCW RC HY RC HY RC HY ...
Page 192: ...88 Technical data RC HY RC HY RC HY ...
Page 195: ...91 Technical data sheet 3 ...
Page 196: ...92 Technical data sheet 4 ...
Page 199: ...95 Technical data sheet 3 ...
Page 200: ...96 Technical data sheet 4 ...
Page 201: ...97 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Page 202: ...98 Technical data sheet 6 ...
Page 203: ......
Page 206: ......
Page 277: ...71 Technical data Electrical circuit diagram HSB140 ...
Page 280: ...74 Technical data sheet 3 ...
Page 281: ...75 Technical data sheet 4 ...
Page 284: ...78 Technical data sheet 3 ...
Page 285: ...79 Technical data sheet 4 ...
Page 286: ...80 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Page 287: ...81 Technical data sheet 6 ...