Technical data

6 720 611 443 GB (03.11)
Installation
13
Fig. 7 System layout if using twin zone valves (S) plan
Fig. 8
3.3 Siting the appliance
Regulations concerning the Installation Site
B Relevant national regulations must be complied with
section 3.8.1.
B Consult the installation instructions for details of min-
imum clearances required.
Combustion air
In order to prevent corrosion, the combustion air must
not contain any corrosive substances.
Substances classed as corrosion-promoting include
halogenated hydrocarbons which contain chlorine and
fluorine compounds and are contained in some sol-
vents, paints, adhesives, aerosol propellants and house-
hold cleaners, for example.
Surface temperature
The max. surface temperature of the casing and the flue
is less than 85 °C.
This means that, no special safety precautions are
required with regard to flammable building materials
and fitted furniture. The specified clearances must be
maintained.
Cupboard/Compartment
The appliance can be installed in a cupboard/compart-
ment need for airing clothes providing that the require-
ments of BS 6798 and BS 5440:2 are followed. The
low casing losses from the appliance eliminate the need
for ventilation openings in the compartment.
6 720 610 601-06.1O
RV
LV LV
RV
RV
RV
LV LV
INDIRECT
CYLINDER
APPLIANCE
Refer to
Appliance
Water
Flow
Diagram
Heating Return
Heating Flow
Safety Discharge
Cylinder Return
Hot Water Flow
BS
Stop Valve Fixed Cylinder Type
Mains Cold Water
Radiator Valve - Flow RV
Lockshield Valve - Return LV
Note:
A drain cock
should be fitted
at the lowest
point of the
heating circuit
and beneath
the appliance
CH
Zone
Valve
DHW Zone Valve