Immergas 3.033210 Instruction And Warning Book page 53

3
CONTROLS AND
MAINTENANCE
3.1 MAINTENANCE.
The solar heat system must be serviced every year.
This ensures that the optimal safety, performance and operation
characteristics of the appliance remain unchanged through time.
3.2 ANNUAL MAINTENANCE METHODS.
The following checks and maintenance should be performed at
least once a year.
- Visually check for water leaks or oxidation from/on connections.
- Check visually that the safety and control devices have not been
tampered with and in particular, the regulator probe, the expan-
sion vessel and the safety valve.
- In case of hard water it is advised to carry out, at least once a
year, the decalcification of the boiler.
- Check the status of the glycol present in the system.
- Carry out the cleaning of the solar collector.
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