Trianco TRISTAR OPTIMA JUNIOR K CB, Руководство по установке, Страница: 37 / 44

37
To ensure safe and efficient operation of the
appliance, the boiler
must be serviced at least once a
year by a CORGI-registered engineer. Failure to do so
will invalidate the guarantee.
Before and after servicing, a combustion analysis
must be performed, in accordance with the
instructions given in
section 10 , page 35 .
To access the internal chamber of the boiler, refer to
section 4 , page 16 .
Before carrying out any work on the gas-carrying
parts, always switch off the supply to the appliance.
Always isolate the electrical supply to the boiler before
carrying out any work on electrical components.
- Call up the last fault stored by the appliance onto
the multifunction display (see
section 7.4 , page
33 for visualisation codes).
- The display will now show the last fault to occur
with the boiler (see
section 13.1 , page 40 for fault
codes). It should then be ascertained whether this
fault was rectified. Carry out any action as
necessary.
- Perform a visual check of the flue and associated
seals for evidence of gaps and splits. Repair as
necessary.
- Check the gas supply pressure against the figures
specified on the technical specification table
(
section 2 , page 7 ).
- Check the combustion analysis figures for the
CO
2
against those given in section 10 , page 35 .
- Check the gas and water systems for leaks.
- On the combi (CB) model only, check the hot
water outlet temperature does not exceed that
given on the technical specification table.
- Check and clean the burner and heat exchanger
(see
section 12.2 , page 38 ).
- Remove the condensate trap pipe ( item 9 , fig 47 )
from the bottom plate ( 10 ). Remove bolt ( 11 ) and
the bracket ( 12 ).
-
Disconnect the condensate bottom plate by
pulling downwards, then away from the right side
of the shaft (
13 ).
- Clean the condensate trap by unscrewing the
plastic cover on the underside of the boiler. Check
inside for deposits and clean as necessary. Refill
to halfway with water.
-
Check all condensate run-off pipework for leaks.
- Check that the pressure charge of the expansion
vessel matches that given on the technical
specification table (
section 2 , page 7 ).
- Check the central heating water pressure. If
outside required parameters, adjust as necessary
(see
section 3.6 , pages 13/14 ).
- Visually inspect the wiring to the appliance for
physical damage.
-
Check the programmer settings are to those
required by the user.
- Check the peripheral controls for correct operation.
-
Refit all components in reverse order, ensuring
that all seals are checked for damage and
replacing if necessary.
12 SERVICING AND MAINTENANCE
12.1 SERVICE PROCEDURE