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Subject to change without notice | 83056700fUK – Translation of the original operating manual | ait-deutschland GmbH
11 Maintenance
NOTE
We recommend that you sign a maintenance
agreement with an accredited heating
company.
11.1 Basic principles
The cooling circuit of the heat pump requires no
regular maintenance.
Local regulations – e.g. EU Regulation (EC) 842/2006
– among other things, require leak checks beforehand
and/or for a logbook to be kept for certain heat pumps.
The hermetic tightness and refrigerant fill quantity are
criteria for whether a logbook has to be kept and leak
tests performed or not, and at what time intervals.
►
Ensure compliance with local regulations with
regard to the specific heat pump system.
11.2 Maintenance as required
● Checking and cleaning the components of the
heating circuit and the heat source, e.g. valves,
expansion vessels, circulation pumps, filters, dirt
traps
●
Test the function of the safety valve for the heat-
ing circuit
11.3
Clean and flush the evaporator
and condenser
► Clean and flush the evaporator/condenser strictly
according to the manufacturer's regulations.
► After flushing the evaporator/condenser with
chemical cleaning product: neutralise any
residues and flush the evaporator/condenser
thoroughly with water.
11.4 Yearly maintenance
►
Record the quality of the heating water analytically.
In case of deviations from the specifications, take
suitable measures without delay.
12 Faults
►
Read out the cause of the fault via the diagnostics
program of the heating and heat pump controller.
►
Contact the local partner of the manufacturer or
the factory's customer service. Have the fault
message and unit number (
“Unit sticker”,
page 3) to hand.
12.1
Unlock the safety temperature
limiter
A safety temperature limiter is installed in the electric
heating element. If the heat pump fails or there is air in
the system:
► Check whether the Reset button (2) of the safe
-
ty temperature limiter (1) has jumped out (by ap-
prox. 2 mm).
► Press the reset button back in again.
►
If the safety temperature limiter trips again, con-
tact the local partner of the manufacturer or the
factory‘s customer service.
