Ariston ACO 32 RFFI SYSTEM Installation And Servicing Instructions page 76

10. ANNUAL MAINTENANCE
CHECKLIST
To ensure that the five year guarantee applies, the following checks must be carried out once a year and the service
history completed in the Service Interval Record (Section 12, page 79) by a CORGI registered engineer:
1. Visually check the appliance for correct installation;
2. Check the appliance for the correct operation;
3. Check the flue and flue installation for correct siting, installation and that it is in good condition.;
4. Remove the casing as described in Section 7.2;
5. Check the operation of the safety devices:
- Air Pressure Switch;
- Overheat Thermostat;
- Safety Valve;
- Low Water Pressure Switch;
- Ionisation (Flame Detection);
6. Drain the boiler and check the pressure in the expansion vessel, ensuring it is 0.7 bar;
7. Remove, clean and refill the condensate trap and condensate hoses (see Section 7.3.6 and 7.3.7), check
the drain system for correct discharge of condensate and clean if necessary;
8. Remove and clean the DHW flow switch;
9. Remove and clean the fan;
10. Remove and clean the electrodes with an emery cloth;
11. Remove and clean the burner;
12. Check and clean the primary heat exchanger as necessary;
13. Refill the boiler and check the following;
14. Check all electronic operation parameters are correct (see Section 3.6);
15. Check gas inlet pressure and correct working pressure;
16. Check the CO (see Section 3.6.3) and adjust as necessary;
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17. Check the gas rate;
18. Check the correct operations of the timeclock and room thermostat;
19. Check the DHW flow rates;
20. Advise the customer on the correct use of the appliance (clock setting and operation, repressurising etc.);
21. Complete the necessary paperwork, Service Interval Record (page 79, Section 12) and Annual Maintenance
Checklist.
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