Heat pump - Maintenance

January 24, 2022
/
Unkategorisiert

Air source heat pumps and heating systems: it is impossible to imagine modern house construction without them! Especially as they are used in buildings for heating and hot water preparation.

For optimum energy yield and the longest possible service life, regular maintenance should be a top priority. In order to maintain operational safety, heat pumps containing more than 1.5 kg of refrigerant in accordance with § 22 of the Refrigerant Ordinance must also be checked regularly every year. This inspection must be carried out by qualified persons. According to the Refrigerant Ordinance, a system test log must be kept for documentation purposes.

For systems that are not covered by the Refrigerant Ordinance, an interval check within 1-3 years is recommended, depending on the manufacturer.

Air, air-water and heat pumps must be maintained! These work with ambient air. This means that contamination of the filters and other components is unavoidable!

Depending on the federal state, there may also be different requirements.

Maintenance

The following work should be carried out during maintenance:

Checking the filters
Checking the pumps and the heat pump’s cooling circuit
Checking the heat transfer
Testing the tightness of the heating circuits
Testing the electrical and hydraulic connections
Checking the connections
Pressure cleaning
Removal of residues
Check and clean the condensate pump
Check safety circuit
Measure evaporation and condensation
Measure the current consumption of the compressor
Function test of the switching sequences
Entry in the refrigeration logbook (if required)
Labor Inspection Act 1993 § 2. para. 3 – for business premises

The following heat pumps should be subjected to further checks:

Air and water heat pumps:

Check the condensate tray and drains for dirt and blockages
Checking the intake and exhaust openings

Brine and water heat pump:

Maintenance and inspection of the heating and brine circuit filters
Checking the antifreeze content in the brine pipe
For groundwater systems, check the well water quality and water levels

To make sure you don’t miss any more appointments in future, download the MyBuilding24 app. There you can record all your devices requiring maintenance and manage the associated appointments. With a complete list of maintenance work available at all times, you are always on the safe side.