Worcester 26CDi Xtra User Instructions & Customer Care Manual page 4

TO LIGHT AND STOP THE
APPLIANCE
TO LIGHT THE APPLIANCE
Check that the water valves to the central heating circuit are open.
Check that the grey needle on the pressure gauge is not below
the required pressure.
Switch on the mains electricity. The green power on indicator
will light. Set the room thermostat, if fitted, to maximum. Turn the
central heating temperature control knob to 'MAX'. The red central
heating demand indicator will light.
The burner will light and the red flame detection indicator will light.
Set the central heating and hot water temperature control knobs
and the room thermostat, if fitted, to the desired temperature.
TO STOP THE APPLIANCE
For Short Periods
Turn the central heating temperature control knob fully anti-
clockwise to the 'O' position.
For Long Periods
Turn the operating switch to the 'O' position. Switch off the
mains electricity.
A facia mounted electronic programmer will retain its settings for
about two weeks, after which it will return to the factory set
Fig. 4. 26CDi Xtra with front panel removed.
Clip
Circulating pump
Locating peg
10
programme. The display will disappear
after approximately 12 hours.
A facia mounted mechanical
programmer will require resetting once
the operating switch has been set to 'O',
or the mains supply has been
disconnected.
ELECTRICITY SUPPLY
FAILURE
If the electricity supply fails the
appliance will not operate. Once the
supply is restored the appliance will
Expansion
return to normal operation. If a
vessel
programmer is fitted, check that the
settings have been maintained.
OVERHEAT CUT-OFF
THERMOSTAT
Gas valve
The appliance will enter a lockout
condition in the event of overheating.
An overheat cut-off thermostat is
fitted to the appliance which will
interrupt the electricity supply to the
gas valve.
If the overheat cut-off has
operated, both the central heating and
the hot water demand indicators will
flash together.
VENTILATION OF ROOM SEALED FANNED
FLUE (RSF) APPLIANCES
This is a room sealed appliance and any ventilation openings in a
wall or door must not be obstructed. Do not allow the flue terminal
fitted on the outside wall to become obstructed or damaged.
NOTE: Do not place anything on top of the appliance. If the
appliance is fitted in a compartment do not use the compartment for
storage purposes unless it conforms to the requirements of
BS 6798:1987: Section 6. It is essential that the airing space is
separated from the boiler space by a perforated non-combustible
partition as described in BS 6798:1987.
CIRCULATING PUMP
This may be fitted with a speed adjuster. If so it will be factory
set at maximum and should not be changed.
FROST PRECAUTIONS
If the appliance is not to be used for a long period of time and
there is a likelihood of freezing, then the appliance should be drained.
The Worcester Technical Helpline will advise you on suitable frost
precautions. For short periods the built-in frost protection of the
appliance will be adequate.
SERVICE
Annual servicing is important in order to ensure continuing high
efficiency and long life for your appliance. In the event of any
difficulty in making suitable servicing arrangements, Worcester
personnel or other competent persons will be happy to discuss regular
servicing arrangements and offer a comprehensive maintenance
contract.
WARNING
If a gas leak exists, or is suspected, turn off the gas supply to the
appliance at the service cock and consult your local service engineer.
Do not touch any electrical switches to turn them either on or off.
Open all windows and doors. Do not smoke. Extinguish all naked lights.
CLEANING
Do not use abrasive cleaners on the outer casing. Use a damp
cloth and a little detergent.
CONDENSATE DRAIN
Your installer will have provided a plastic condensate drain pipe
from the appliance.
The pipe should discharge into the household drainage system,
outside gully or soak away.
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