ATMOS MULTI version 2002 Page 5
1. Installation Regulations.
1.1 A qualified registered installer in accordance with
the Gas Safety (Installation and Use) Regulations;
October 1994 must only install this appliance. Failure to
install appliances correctly could lead to prosecution.
1.2.The manufacturer instructions must not be taken as
overriding statutory requirements.
1.3 The installation of this appliance must be in
accordance with the relevant requirements of the Gas
Safety (Installation and Use) Regulations 1984 as
amended, Building Regulations, Building Standards
(Scotland), lEE Wiring Regulations (BS 7671), Health
and Safety Document No.635 (Electricity at Work
Regulations) and local Water Authority bye laws.
1.4 Installation should also be in accordance with the
relevant recommendations contained within the current
versions of the following British Standards.
qBS 6798 Specification for installation of gas fired
hot water boilers of rated input not exceeding 60
kW.
qBS 5449 Central Heating for Domestic Premises.
qBS 5546 Installation of gas hot water supplies for
domestic purposes.
qBS 5440 Flues and Ventilation for gas appliances of
rated input not exceeding 60 kW. (Part 1 Flues).
qBS 5440 Flues and Ventilation for gas appliances of
rated input not exceeding 60kw (Part 2 Air Supply).
qBS 6891 Installation of low pressure gas pipework
installations up to 28mm (R1).
Reference should also be made to British Gas Guidance
Notes for the Installation of Domestic Gas Boilers.
1.5. To ensure that the installation will perform to the
highest standards, the system and components should
conform to any other relevant British Standards in
addition to those mentioned in these instructions.
1.6. For Installation in Ireland the appliance must be
installed in compliance with I.S.813 ‘Installation of gas
appliances’.
1.7. Asbestos and CFC’s are not used in the
manufacture of these products.
2. General Information.
2.1 The Atmos Multi is a wall mounted, fully automatic gas
fired condensing combination boiler designed to provide
'unvented' domestic hot water at mains pressure via an
integral hot water storage cylinder.
2.2 Classified as an 'Unvented hot water system' the
installation of the Atmos Multi falls within the scope of the
Building Regulations 1995 (Part G.). These require that a
competent person as defined in the Approved Document G3
must only undertake the installation of an unvented system.
2.3 For central heating applications the Atmos Multi is
suitable only for use on a fully pumped, pressurised, sealed
primary system with a design (cold)pressure of between 0.5
and 2.5 bar.
2.4 The boiler may be installed in any room or internal space
without the need for purpose made ventilation, although
attention is drawn to the current IEE Wiring Regulations with
respect to installation in a room containing a bath or shower.
In such installations, it must not be possible for a person
using the bath or shower to touch any mains electricity fed
switch or boiler control.
2.5 In areas where the temporary hardness of the supplied
water exceeds 200mg/litre, a proprietary in-line scale control
device such as the 'Hydroflow' (available from Atmos
Heating Systems) should be fitted in the cold feed to the
boiler.
2.6 Although fitted with an automatic air release valve it
should be ensured that the boiler's heat exchanger is not a
natural collecting point for air. Air vents must be fitted at the
highest positions of the heating flow and return pipes and at
any other point in the system where air is likely to collect.
2.7 The Atmos Multi is suitable to acceptpre-heated water
such as that supplied from solar panel installations.
2.8 To ensure economic use of domestic hot water, it is
recommended that pipe runs between the boiler and taps be
in 15mm copper, as short as possible and, where practical, be
insulated to reduce heat loss.
2.9 Where the boiler is intended for use on Propane gas the
boiler must not be installed in a room or internal space below
ground level.
