Siting The Appliance - Benchmark CS1 Installation And Servicing Instructions

Note:
A drain cock
should be fitted
RV
at the lowest
point of the
heating circuit
and beneath
the appliance
RV
Fig. 7 System layout if using twin zone valves (S) plan
Sealed system filling and make up
Heating return
Non return Non return
valve valve
Test cock
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
household cleaners, for example.
6 720 610 601 GB (03.02)
LV
RV
LV
RV
Radiator Valve - Flow RV
Lockshield Valve - Return LV
Hose union
Stop cock
Temporary hose
INDIRECT
LV
CYLINDER
APPLIANCE
LV
Refer to
Appliance
Water
Flow
Diagram
Safety Discharge
CH
DHW Zone Valve
Zone
Valve
BS
Stop Valve Fixed Cylinder Type
Auto
Heating return
air vent
Non return
valve
Stop
cock
Fill point
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 clearences 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.
Installation
Mains Cold Water
Make up
vessel
1000mm (39 in)
above the highest
point of the system.
6 720 611 137 - 29.1O
13