DeDietrich AWHP-V220, User Manual

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5 Checking and maintenance
5.1 General instructions
CAUTION
4
An annual inspection is compulsory.
4
We recommend taking out a maintenance contract.
4
Maintenance operations must be done by a qualified
engineer.
4
Only original spare parts must be used.
5.2 Periodic checks
WARNING
Only qualified professionals are permitted access to the
inside of the appliance.
If the pressure gauge is not accessible, contact the
installer.
4
Have the installation's water pressure checked.
If the water pressure is lower than 1 bar, more water should
be added. If necessary, top up the water level in the heating
system (recommended hydraulic pressure between 1,5
and 2,0 bar).
¼ See chapter: "Top up the installation with water",
page 20.
4
Carry out a visual check for the presence of any water leaks.
4
Open and close the radiator valves several times a year (this
prevents the valves from seizing up).
4
Clean the outside of the heat pump using a damp cloth and a mild
detergent.
CAUTION
Only qualified professionals are permitted to clean the
inside of the appliance.
T001507-B
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T000181-B
5. Checking and maintenance AWHP-V220
19 26/10/2011 - 300026802-001-B