7
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Service and maintenance
98
FA ROTEX HeatPumpSolarUnit - Part 2 - 05/2009
Maintenance work to be carried out annually:
– Cleaning the water filter in the Indoor Module (RKHB).
– Cleaning the inside of the Outdoor Module (RRHQ).
– Cleaning the plastic surfaces of the HybridCube hot water storage tank.
– Checking the outer covers on the Indoor Module (RKHB).
– Replacement of the wearing parts if required).
7.2
Service and maintenance tasks
Due to its construction, the HybridCube hot water storage tank is practically maintenance-free. No corrosion
protection equipment is required (such as expendable anodes). This means there is no need for maintenance work
such as changing the protective anodes or cleaning the inside of the storage tank.
– Check the filling level, if necessary replenish water.
WARNING!
Improperly carried out work on the ROTEX HeatPumpSolarUnit and its components that have been connected
as an option can endanger human life and health and adversely affect the operation of the these components.
• Work on the ROTEX HeatPumpSolarUnit (such as maintenance or servicing) is only to be carried out by
persons who are authorised and who have successfully completed
qualifying technical or vocational
training
and who have taken part in advanced training sessions recognised by the appropriate responsible
authorities. These include in particular
certified heating engineers, qualified electricians and HVAC
specialists
, who because of their
professional training
and
expert knowledge
, have experience in the
professional installation and maintenance of heating, cooling and air conditioning systems and heat
pumps.
WARNING!
The gaseous refrigerant is heavier than air.
In pits
or in badly ventilated
rooms
it can collect in
high concen-
trations
.
Breathing in high concentrations
of gaseous
refrigerant
leads to
feelings of faintness and suf-
focation
.
Toxic gases
can be formed if
gaseous refrigerants
come into contact
with open fire or hot
objects
.
• When working on the refrigerant circuit, ensure that the workplace is well ventilated.
• If necessary, before starting work, evacuate the refrigerant system completely.
• Never carry out work on the refrigerant circuit in closed rooms or work pits.
• Do not let refrigerant come into contact with open fire, embers or hot objects.
• Never allow refrigerant to escape into the atmosphere (forms high concentrations).
• After removing the service pipes from the filling connections, carry out a leakproof test on the refrigeration
system. Refrigerant can escape through leaks.
WARNING!
At normal atmospheric pressure and ambient temperatures,
liquid refrigerant
vaporises so suddenly that on
contact with skin or eyes
it can cause the
tissue to freeze
(danger of going blind).
• Always wear safety goggles and protective gloves.
• Never allow refrigerant to escape into the atmosphere (high pressure at the point of the leak).
• When removing the service pipes from the filling connections, never hold the connections in the direction of
your body. Residual refrigerant could escape.
WARNING!
During operation of the ROTEX HeatPumpSolarUnit,
hot water temperatures >60 °C
occur. The is the risk
of
getting burnt
on contact with components during operation. Water discharged during maintenance and
servicing work can cause
scalding
on contact with the skin.
• Before carrying out servicing and maintenance work, allow the ROTEX HeatPumpSolarUnit to cool down
sufficiently.
• Wear protective gloves.
