Bosch 28CDI - Manual (Page 7)

7
The water hardness may be determined using the standard test
paper or by reference to the local Water Company.
Further information may be obtained from Worcester Bosch
Technical Helpline.
AIR SUPPLY FOR OPEN FLUED (O.F.)
APPLIANCES
Your installer will have made arrangements for an adequate sup-
ply of fresh air to the appliance. Fresh air is required for combustion.
Do not block up any air ways which may be let into a wall or door. Do
not hang clothes or other combustible materials over the appliance or
against the flue pipe.
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. In particular, the flue pipe should not pass
through an airing cupboard space unless protected by a guard (such as
wire mesh) concentrically spaced 13mm (
1 /
2
in), as described in BS 6798:1987.
VENTILATION OF BALANCED FLUED (BF)
AND ROOM SEALED FANNED FLUE (RSF)
APPLIANCES
These are room sealed appliances and any ventilation openings
in a wall or door must not be obstructed. Do not allow the flue termi-
nal 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 separat-
ed 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 suit-
able frost precautions. For short periods, the built-in frost protection
of the appliance will be adequate.
SERVICE
Annual servicing is important to ensure continuing high efficiency
and long life of your appliance. Suitable servicing arrangements should be
made with a competent third party. In the event of any difficulty in making
suitable service arrangements, Worcester personnel will be happy to dis-
cuss regular servicing and offer a comprehensive maintenance contract.
IMPORTANT: Do not touch or adjust any sealed compontent.
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.