5
2000225065A
Protection Against Freezing
The appliance has a built in frost protection programme as long
as the electricity and gas are left switched on.
Any other exposed areas of the system should be protected by
a separate frost thermostat.
If the mains electricity and gas are to be turned off for any long
periods during severe weather, it is recommended that the
whole system, including the boiler, should be drained to avoid
the risk of freezing. Make sure that, if fitted, the immersion
heater in the cylinder is switched off.
This appliance operates on a sealed water system, contact your
installation/servicing company as draining, refilling and
pressurising MUST be carried out by a competent person.
Important Information
Draining and filling
Caution: The boiler is installed as part of a sealed system which
must only be drained and filled by a competent person.
If the boiler is to be out of use for any long periods during severe
weather conditions, it is recommended that the whole system,
including the boiler, be drained to avoid the risk of freezing.
If in doubt, consult your servicing company.
The cxi boilers are wall mounted modulating combination
boilers with electronic ignition providing central heating and
instantaneous hot water.
The boiler is of the
I
2H
category for use only with Natural Gas
(G20) .
The boiler has a fan assisted balanced flue which both discharges
the products of combustion to and draws the combustion air
from the outside of the room.
The boiler has a top outlet flue connection and can be fitted with
horizontal flue, vertical flue or twin-pipe flue. Refer to flue
options guide for further information, this is available from your
nearest stockist.
Both the central heating and domestic hot water temperature
are user adjustable.
Domestic hot water demand always has priority over heating
demand.
The boiler is designed for use as part of a sealed water central
heating system with fully pumped circulation. The pump,
expansion vessel and associated safety devices are all fitted
within the boiler.
The boiler can be installed against either an external wall or on
an adjacent inside wall, that is, the flue system will pass directly
to the rear or to either side to the terminal fitted on the outside
wall face.
The installation of this boiler must be carried out by a competent
person in accordance with the rules in force in the countries of
destination.
Manufacturer’s instructions must not be taken as overriding
statutory requirements. Reference in these instructions to British
standards and statutory regulations/requirements apply only to
the United Kingdom. For Ireland the current edition of I.S.813
"Domestic Gas Installations" must be used.
These instructions should be carefully followed for the safe and
economical use of your boiler.
Note: The boiler serial number is marked on the data label
attached to the inner front panel. The 'Operating the
Appliance' section describes how to safely use the boiler.
Accessories
A range of accessories are available.
For further information contact your supplier.
Draining and Filling
Appliance Introduction
BOILER DRAIN
VALVE
11501
