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Installation to Natural Gas
Installation to Natural Gas must conform to the Code of Practice, etc.
The supply pressure for Natural Gas is 20 mbar.
The installation must conform to the relevant British Standards.
Installation to LP Gas
When operating on Butane gas a supply pressure of 28-30 mbar is required.
When using Propane gas a supply pressure of 37 mbar is required.
The installation must conform to the relevant British Standards.
Warning: Only a suitably qualified and registered installer, also with technical knowledge
of electricity should install the appliance. He should observe the Regulations and Codes of
Practice governing such installation of gas appliances.
Note: It is recommended that the gas connection to the appliance is installed with a flexible
connecting tube made to BS5386.
Notes:
Flexible hoses can be used where the sited ambient temperature of the hose
–
does not exceed 70°C. These hoses must be manufactured in accordance with
BS669 part 1 and be of the correct construction for the type of gas being used.
Gas hoses designed for natural gas MUST NOT be used for supplying LPG gas
–
(LPG gas hoses can be identified by a either a red band or stripe on the rubber
outer coating of the hose). The hose should not be crushed or trapped or be in
contact with sharp or abrasive edges.
If installation is to be carried out using a flexible connector (to BS669), then the following
points must be adhered to:
Note: The gas installation pipes and the final connection to the appliance connecting pipe
shall be sufficient size to maintain the heat output of the appliance as specified under in-
stallation.
1.
The appliance flexible connector should not be subject to undue forces, either in nor-
mal use whilst being connected or disconnected.
2.
The appliance flexible connector should not be subject to excessive heat by direct
exposure to flue products or by contact with hot surfaces.
3.
The socket into which the plug of the ap-
pliance flexible connector fits should be per-
manently attached to a firmly fixed gas in-
stallation pipe and positioned such that the
hose hangs freely downwards.
4.
The appliance flexible connector should
be positioned such that it will not suffer
mechanical damage; eg abrasion from the
surrounding kitchen furniture which may be
moved in use, such as a door or drawer, or
by being trapped by a stability device.
5.
The plug-in connector should be accessible
for disconnection after moving the appliance.
Fig. 6.1
29
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