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4.
TESTING THE BOILER
4.1.
Preliminary checks
Before testing the boiler, it is recommended to check the following:
- the installation is compliant with the prevailing standards;
- the flue gas venting duct and the relative terminal are installed in conformity with the instructions: with the boiler operating there must be no
leakage of combustion by-products from any of the gaskets;
- the boiler is powered by a 230 V - 50 Hz mains supply;
- the heating system is correctly filled with water (pressure gauge reading 1 to 1.3 bar);
- any shut-off cocks in the system pipes are open;
- the mains gas type is correct for the boiler calibration: convert the boiler to the available gas when necessary (see paragraph 3.6.); this operation
must only be performed by qualified technical personnel;
- the gas supply cock is open;
- there are no fuel gas leaks;
- the main switch installed ahead of the boiler is turned on;
- the safety valves of the CH and DHW circuits are not stuck;
- there are no water leaks;
- pumps are not stuck;
- the condensate trap installed on the boiler is discharging condensate correctly and is not stuck.
Should the boiler not be installed in compliance with the prevailing laws and standards, notify the system supervisor and do not
test the boiler.
4.2.
Switching on and switching off
To switch the boiler on and off, refer to the “Instructions for the User”.