15
INSPECTION AND MAINTENANCE INSTRUCTIONS
15.1 General
The Remeha Gas 610 ECO has been designed to need
minimum maintenance, but to ensure optimum efficiency
we advise that once a year each boiler module should
be checked and if necessary cleaned and reset.
All service and maintenance must be carried out by a
qualified Engineer with the relevant training and certifi-
cation (ie CORGI - ACOPS - etc.).
15.2 Cooling mode
This mode enables maintenance on the burner and/ or
the heat exchanger to be carried out more efficiently. In
this mode, the fann runs at maximum speed for two min-
utes, which cools down the boiler module rapidly. When
this mode is active, the system does not respond to heat
demands.
g
Important!!
This mode can only be activat-
ed if there is no heat demand on the boiler module.
The code c[l indicates that the mode is active (
c[l for cooling).
The mode is activated by pressing the s and [+] keys
simultaneously (during normal operating status with no
heat demand).
The mode can be terminated prematurely by pressing
the [+] and [-] keys simultaneously.
15.3 Annual Inspection
The annual inspection of the Remeha Gas 610 (per
module) as follows:
- Check combustion characteristics, full and part load
(see section 10.1).
Note: When checking combustion the C0
be in accordance with the values in table 11 with a
tolerance of +/- 0.5%. If the levels are outside these
tolerances, adjustment to the levels must be made in
accordance with a tolerance of +/- 0.15%.
- Check flue gas temperature. If flue gas temperature
is more than 30°C above the boiler return water tem-
perature the heat exchanger must be cleaned (see
par. 15.4.5).
- Check/clean the condensate siphon (refill with clean
water).
- Check for leaks (waterside, 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 boiler parameters.
- Check ionisation level, minimum 3 μA dc (see 12.2,
parameter G).
If ionisation level < 3 μA dc or not present, check:
- Is flame shape stable and colour as described in
commissioning instructions.
- Check ignition probe earth.
- Check condition of ignition/ ionisation probe replace if
necessary.
- Replace electrode at least every 2 years.
- Clean any oxides/deposits with sandpaper or fine
emery cloth.
- Check shape of probe and ignition gap, i.e. 3 to 4 mm
(see fig. 35).
- Check temperature sensors for resistance values
against fig. 27 (humidity on sensors).
- Check and clean if necessary the gas filter.
-
Check air box and dirt trap (see section 15.4.1).
fig. 27 Sensor resistance graph
15.4
If during the annual inspection combustion results indi-
levels should
cate that the boiler module is no longer operating at the
2
optimum level, additional maintenance should be carried
out as follows:
NOTE:
Please ensure that the gas supply and mains power
supply is isolated before any maintenance work is car-
ried out on the boiler module.
Care should be taken when stripping the boiler module
for maintenance making sure that all parts nuts, wash-
ers and gaskets etc. are kept safe, clean and dry for
re-assembly.
Following maintenance/ cleaning, the boiler module
should be re-assembled in the reverse order re-placing
gaskets and joints where found necessary.
All general cleaning should be carried out with
compressed air, a soft brush or damp cloth to avoid
damaging components. (Solvents must not be
used).
Remove front and end casing panels – lift casing panel
slightly upwards and tilt toward you lift again clear of the
bottom rail.
47
Maintenance