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11 INSPECTION AND SERVICING INSTRUCTIONS
11.1 General
The Remeha Quinta 45 and 65 has been designed to need minimum maintenance, but
to ensure optimum efficiency we advise that once a year the boiler should be checked
and if necessary cleaned and reset.
All service and maintenance must be carried out by a qualified Engineer with the rele-
vant training and certification (ie CORGI - ACOPS - etc.).
11.2 Annual Inspection
The annual inspection of the Remeha Quinta 45 and 65 as follows:
- check combustion characteristics, ref. table 16.
- clean the condensate siphon (re-fill with clear water)
- check for leaks (water side, flue gas side and gas soundness)
- check flue and air inlet system is clear and gas/water tight
- check system pressure
- check control settings
- check ionisation level, minimum 4
µ
A dc (ionisation measurement in Volts between
terminal 4 and earthing, 1V dc
≡
1
µ
A dc) If ionisation level < 4
µ
A dc, check:
- CO
2
at both part and full flame
- is flame core visible?
- is flame geometry stable?
- ignition probe earthing
- temperature sensors for loss current (humidty on sensors)
Visual check of ignition/ionisation probes:
- if white oxydes show, use sand paper or screwdriver for cleaning
- check geometry and distance between both probes, i.e. 3 to 4 mm.
- clean and re-set the ignition electrode
Note
: If flue gas temperature is more than 30°C above the boiler return water tempe-
rature the heat exchanger must be cleaned
see section 11.3.
11.3 Maintenance
If during the annual inspection combustion results indicate that the boiler is no longer
operating at the optimum level, additional maintenance should be carried out as fol-
lows:
- wash the heat exchanger through using clean warm water. If badly contaminated it
may be necessary to use the special cleaning tool (can be supplied as an option).
Compressed air can also be used, but care should be taken to ensure that the dis-
turbed dust etc. does not contaminate the rest of the boiler and controls.
- clean the burner assembly (using compressed air only)
- clean the fan
- Re-commission boiler
