Troubleshooting
The following tips can be used to rectify comfort dis-
ruption:
Basic actions
Start by checking the following possible fault sources:
႑
That the heat pump/air collector module is running
or that the supply cable to AMB 30 is connected.
႑
Group and main fuses of the building.
႑
The building's earth circuit breaker.
႑
The air collector module's miniature circuit breaker
(FA1).
AMB 30 is not operational
The control system has not given the start
signal.
Cause:
Check that the heat pump is operating.
Action:
Fuses have tripped.
Cause:
Replace the fuse or reset the MCB. If the
fuse trips again the installation engineer
should be contacted.
Action:
Outdoor temperature is colder than set
value in menu "BT28 min.". Indicated as
"Low BT28" in the control unit.
Cause:
Wait until the outdoor temperature is
higher than the set stop value (menu
"Low BT28").
Action:
Outdoor temperature hotter than 50 °C.
Indicated as "High BT28" in the control
unit.
Cause:
Wait until the outdoor temperature is
below 48 °CC.
Action:
Fan stopped.
Cause:
Ensure that the air flow is not blocked. If
the fault remains contact the installation
engineer.
Action:
The alarm is acknowledged automatically when the
fault is rectified or according to the instructions on
page 36.
Interference when defrosting
AMB 30 does not defrost.
Cause:
Check that the reversing valve (QN20)
functions and is correctly connected.
Action:
AMB 30 does not defrost completely.
Cause:
Increase set temperature in menu
"Stop active".
Action:
AMB 30
Chapter 10 |
Disturbances in comfort
38
Содержание AMB 30
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