Installation Requirements - Potterton Envoy 30 Installation & Service Instructions Manual

INSTALLATION REQUIREMENTS – Page 5
GENERAL INFORMATION
Both the user and the manufacturer rely heavily on the
installer, whose job it is to install the boiler and connect
it to a correctly designed heating system. Acquaint
yourself with the British Standards concerning
installation requirements. If you need advice on any
points, Potterton Service Operations will be pleased to
help (see back page).
CODES OF PRACTICE
I.E.E. Regulations
Model Water Bye Laws
Building Regulations/Building Standards for Scotland.
Health and Safety Document No.635. (The Electricity
at Work Regulations 1989).
BS.6891 Installation of low pressure pipes.
BS.6798 Installation of gas boilers of rated input
not exceeding 60kW.
BS.5449 Forced circulation hot water CH
systems. Including smallbore and
microbore domestic central heating
systems.
BS.5546 Installation of gas hot water supplies
for domestic purposes.
BS.5440:1 Flues (for gas appliances of rated input
not exceeding 60kW).
BS.5440:2 Air supply (for gas appliances of rated
input not exceeding 60kw).
BG.DM2 Guide for gas installation in timber
framed buildings.
Note: Samples of Envoy boiler have been examined by
the Netherlands Notified Body, Gastec and the range is
certified to comply with the essential requirements of
the GAD and is permitted to carry the CE Mark.
It is important that no external control devices e.g. flue
dampers, economisers etc, be directly connected to this
appliance unless covered by these Installation and
Service instructions or otherwise recommended by
Potterton in writing. If in doubt please enquire.
Any direct connection of a control device not
recommended by Potterton could invalidate the
certificate and the normal appliance warranty and could
also infringe the Gas Safety Regulations.
Manufacturers instructions must not be taken in any way as
over-riding statutory obligations.
ELECTRICITY SUPPLY
A 230 volts - 50Hz, single phase electricity supply fused to 3
amperes, must be provided in accordance with the latest
edition of the lEE Wiring Regulations and any other local
regulations that apply. The current rating of the wiring to the
boiler must exceed 3 amperes and have a cross sectional
2
area of at least 0.75mm
16.
The supply to the boiler and its associated equipment
should be controlled by an exclusive 3A fused double pole
switch (having at least 3mm contact separation in both
poles) so that complete isolation from the supply can be
achieved to enable servicing work to be carried out in
safety.
GAS SUPPLY
A gas supply pressure of 20 mbar is required at the inlet to
the appliance. Performance data is based on use of
reference gas G20.
CONDENSATE DRAIN
The condensate outlet on the boiler is designed to accept
21.5mm (314 in) plastic overflow pipe, which if possible
should discharge into the household drainage system and
have an internal termination. If this is not practical,
discharge into an outside gully or soak away is acceptable.
To avoid blockage of this pipe due to freezing it should be
routed internally where possible and have sufficient fall over
its entire length to dispose of condensate quickly. See
British Gas Guidance Notes for the Installation of Domestic
Gas Condensing Boilers'.
LOCATION OF BOILER
These boilers are not suitable for external installation and
should not be fitted directly above a cooking appliance. The
boiler may be installed in any room, although particular
attention is drawn to the requirements of the current lEE
Wiring Regulations and in Scotland, the electrical provisions
of the Building Standards applicable in Scotland with
respect to the installation of the appliance in a room
containing a bath or shower.
5
in accordance with BS.6500, Table