7
Subject to change without notice.
83054500bUK – Translation into English of the original German operating manual ait-deutschland GmbH Subject to change without notice.
Subject to change without notice.
83054500bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Care of the unit
You can use a damp cloth and standard cleaning products to
clean the outer surfaces of the unit.
Do not use cleaning or care products that contain abrasives,
acids and/or chlorine. Such products would irreparably
damage the surfaces and could also cause technical damage
to the unit.
Maintenance of the unit
The cooling circuit of the heat pump requires no regular
maintenance.
According to EU regulation (EC) 842/2006, certain heat
pumps must be checked for leakage and a log book of the
inspections must be kept!
The criteria for whether or not it is necessary to check
for leakage and keep a log book are the hermetic tightness
of the refrigerating circuit (hermetically sealed system) and
the refrigerant capacity of the heat pump! Heat pumps with
refrigerant capacity < 3 kg do not require a log book. For
all other heat pumps, the log book is supplied with the heat
pump.
Log book for heat pumps, “Information on use of
the log book” section.
The components of the heating circuit and the heat source
(valves, expansion vessels, circulation pumps, filters, dirt
traps) should be checked and cleaned as necessary, but at
least annually, by qualified personnel (heating or cooling
system fitters).
The intake and discharge openings must be checked for dirt
at regular intervals (depends on where the unit is installed)
and cleaned if necessary.
ATTENTION
Check regularly to ensure that the condensate can
drain out of the unit freely, without obstruction. To
this end, check the condensate pan in the unit and
the condensate drain regularly for dirt / blockages
and clean as necessary.
Icing of the protective grating
If temperatures fall below freezing and high levels of
humidity are present, ice can form on the protective grating
of the air deflector hoods. In order to ensure fault-free
operation, the ice must be removed regularly!
It is best to sign a maintenance agreement with a heating
installation company. It will arrange for the necessary
maintenance work at regular intervals.
CLEANING AND FLUSHING UNIT COMPONENTS
CAUTION!
Unit components may be cleaned and
flushed only by customer service personnel
authorised by the manufacturer. Only use
liquids recommended by the manufacturer.
After flushing the condenser with chemical
cleaning agent, any residues must be neu-
tralised and the system flushed intensively
with water. Always note and follow the tech-
nical data of the respective heat exchanger
manufacturer.
Malfunctions
In the event of a fault, you can read out the cause of the
fault from the diagnostic program of the heating and heat
pump controller.
Operating manual of the heating and heat pump
controller.
CAUTION!
Only customer service personnel authorised
by the manufacturer may carry out service
and repair work on the components of the
unit.
Note that no fault is displayed if the safety temperature
limiter on the electric heating element has triggered
(depending on model).
“Commissioning”, “Safety temperature limiter”
section.
