Before Installation; Installation Regulations; Installation Requirements; Gas Supply - Baxi COMBI 224 Installation And Service Manual

5

Before installation

5.1

Installation regulations

5.2

Installation requirements

7661586 - 2 - 12072016
Warning
Installation, repair and maintenance must only be carried out by a
competent person. This document is intended for use by compe­
tent persons.
Installation must be carried out in accordance with the prevailing regula­
tions, the code of practice and the recommendations in these instructions.
Installation must also respect the following points:
This instruction manual and any other applicable documentation.
Building Regulations.
British Standards.
Gas Safety Regulations.
Water Supply Regulations,

5.2.1 Gas supply

The gas installation should be in accordance with the relevant standards.
In GB this is BS 6891 (NG). In IE this is the current edition of IS 813 Do­
mestic Gas Installations.
The connection to the appliance is a 22mm copper tail located at the rear
of the gas service cock.
Ensure that the pipework from the meter to the appliance is of adequate
size, and the demands of any other gas appliances in the property are tak­
en into consideration. Do not use pipes of a smaller diameter than the boil­
er gas connection (22mm) UNLESS the stated gas rate can be achieved
with pipe of lesser diameter and with all other gas appliances operating at
maximum rate.

5.2.2 Electrical supply

External wiring must be correctly earthed, polarised and in accordance
with relevant regulations/rules. In GB this is the current IEE Wiring Regula­
tions. In IE reference should be made to the current edition of ETCI rules.
The mains supply is 230V ~ 50Hz fused at 3A.
Note
The method of connection to the electricity supply must facilitate
complete electrical isolation of the appliance.
Connection may be via a fused double-pole isolator with a contact
separation of at least 3mm in all poles and servicing the boiler and
system controls only.

5.2.3 Hard water area

Note
Only water that has NOT been artificially softened must be used
when filling or re-pressurising the primary system. If the mains
cold water to the property is fitted with an artificial softening/treat­
ment device the source utilised to fill or re-pressurise the system
must be upstream of such a device.

5.2.4 Bypass

The boiler is fitted with an automatic integral bypass.
5 Before installation
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