The regular maintenance for air source heat pump is required to ensure optimal performance and prevent issues. Here are some important considerations:
I.Precautions for reactivation:
After a long period of inactivity, it is necessary to conduct a comprehensive inspection of the system before reactivating the air source heat pump for heating.
Check the following:
- Thoroughly inspect and clean the unit.
- Clean the pipeline system.
- Check the water pump, control valves, and other equipment in the system.
- Ensure all electrical connections are secure.
- If any components are damaged and need replacement, contact the manufacturer for the appropriate replacement parts. Do not replace any parts with incompatible ones.
- Prioritize safety and remember to disconnect the power before any disassembly.
- Before starting the air source heat pump for winter heating, add a certain amount of antifreeze solution to the water circulation loop to prevent freezing.
- Ensure there are no obstructions around the air source heat pump during operation. Leave at least 80 cm of space around the main unit, and ensure there are no obstacles within 2 meters in front of the fan to avoid recirculating cold air back to the unit.
II. System pipeline inspection:
Check that all valves in the distribution system are fully open.
If there are separate zones, check that each electric actuator is functioning properly. The easiest way to check is to see if there is flow indicated on the flow meter of the manifold (it is recommended to use manifolds with flow meters for easier maintenance and adjustment in underfloor heating systems).
Procedure:
① Set the room thermostat to heating mode and set the temperature higher than the current room temperature.
② Wait for 2-3 minutes and observe if the electric actuator is open or if there is flow indicated on the flow meter.
The water system pipelines are exposed to sunlight and rain for a long time, which may damage the insulation layer.
These are the regular maintenance for air source heat pump, the inspection and maintenance are necessary to ensure optimal performance of the air source heat pumps.