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What to do if a fault occurs
Menu outline for Basic functions (Customer level 1)
Motor cut-out compressor (MB1)
Possible cause 1: Intermittent fault or overload on the power
supply.
Action:
1.Press the Ackn. button. The alarm indication goes
out even if the fault has not been rectified.
2. Reset the motor cut-out on the heat pump (Fuse
1).
3. Wait for the heat pump to start.
Possible cause 2: Current level (A) on the motor cut-out is set
too low.
The current drawn by the compressor varies during
summer/winter operations.
Action:
1. Contact the Technical Department.
Possible cause 3: Contactor or cut-out faulty, or loose electrical
connections to the compressor.
Action:
1. Contact the Technical Department.
Possible cause 4: Compressor error.
Action:
1. Contact the Technical Department.
Motor cut-out HTF pump (MB2)
Possible cause 1: The HTF pump is blocked due to
contamination.
Action:
1. Press the Ackn. button.
2. Loosen the vent screw and remove the dirt.
3. The pump may be freed with the aid of a small
screwdriver. The alarm indication goes out even if
the fault has not been rectified.
Possible cause 2: Faulty electric motor on HTF pump.
Action:
1. Contact the Technical Department.
Possible cause 3: Temporary error.
Action:
1. Contact the Technical Department should
repeated faults occur.
Each menu is numbered in the lower
right-hand corner. This indicates which
main display it is associated to.
Select scrolling information on the menu display
If you press the Info button in the initial menu, you will receive continuous
information about the heat pumps operation and working temperatures. This is what
to do:
Press the Info button in the initial menu. The following windows are displayed:
The reset switch for the compressor
can be found under heading Fuses and
resetting buttons on the heat pump.
The menu display shows:
The alarm indication goes out when
acknowledging the alarm even if the
fault has not been rectified.
The menu display shows:
Basic functions - Customer level 1
Note
Note
Note
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
Reg 637 K1
040622 16:08:15 Tu
Heat Info Menu
Reg 637 K1
040622 16:08:15 Tu
Heat Info Menu
Heat. +/-
Page 16
Heat. Fine-tune
Page 17
Room temperature
Page 18
Extra hot water
Page 19
Page 15
Page 15
Page 15
Page 15
STANDBY
no rad heat required
No need
for hot water mode
HOT WATER MODE
Heat pump only
HEATING MODE
HP and add. heat
Heat rad required
Heat pump starts
in #### seconds
Page 19
Page 16
Page 17
Page 18
Main menu
Indoor temperature
settings
1
Temperature settings
Heat. incr. / decr.
range 0-10 1.1
Heat. settings
Adjust Heat.
range -0/+10 1.2
Heat. settings
Int. Heat 1.10
Page 19
Page 18
Main menu
Adjusting the hot
water settings 2
Hot water setting
Duration of
add. hot water 2.1
Page 19
Main menu
Monitor all
temperatures 3
Temperature readings
Return radiator GT1
Temperature readings
Out GT2
Temperature readings
Hot water GT3
Temperature readings
Shunt. flow GT4
Temperature readings
Room GT5
Temperature readings
Compressor GT6
Temperature readings
Heat tr fluid out GT8
Temperature readings
Heat tr fluid in GT9
Temperature readings
Ht trfld(coll) in GT10
Page 20
Temperature readings
Httrfld(coll) out GT11
The menu display is standard on
all heat pumps
The menu display is only shown on
the heat pump in combination with
an extra sensor of for a specific
model.
Alarm
(MB1)
Compr. circ. switch
040622 16:08:15
Info
Ackn.
Alarm
(MB2)
HTF c-pump switch
040622 16:08:15
Info
Ackn.