Maintenance - Ariston Genus 27 Plus Installation Instructions Manual

5.

MAINTENANCE

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It is recommended that the following checks be made on the boiler at least
once a year:
1 - Check the seals for the water connections; replacement of any faulty seals.
2 - Check the gas seals; replacement of any faulty gas seals.
3 - Visual check of the entire unit.
4 - Visual check of the combustion process and cleaning of the burners if needed.
5 - If called for by check no. 3, dismantling and cleaning of the combustion chamber.
6 - If called for by check no. 4, dismantling and cleaning of the injectors.
7 - Visual check of the primary heat exchanger:
- check for overheating in the blade assembly;
- clean the exhaust fan if needed.
8 - Adjustment of the flow rate of the gas: flow rate for lighting, partial load and full load.
9 - Check of the heating safety systems:
- safety device for maximum temperature;
- safety device for maximum pressure.
10 - Check of the gas safety systems:
- safety device for lack of gas or flame ionisation (detection electrode);
- safety device for gas cock.
11 - Check of the electrical connection (make sure it complies with the instructions
in the manual).
12 - Check of domestic hot water production efficiency (delivery rate and temperature)
13 - Check pressure in the Domestic Expansion Vessel and top up as necessary.
14 - Check manually by turning the test knob the Temperature & Pressure Relief Valve.
15 - Check manually by turning the test knob the Expansion Relief Valve.
16 - Check discharge pipes from both the central heating and domestic hot water
for obstructions.
17 - Check of the general performance of the unit.
18 - General check of the discharge/ventilation of the combustion by products.
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