in IE reference should be made to the current
edition of IS 813 “Domestic gas Installations”
which makes clear the conditions that must be
met to demonstrate that sufficient ventilation is
available.
3.16
Propane gas appliances must not be
installed in a room, which is built entirely
below ground level (See BS 5871 Pt2).
3.17
If the appliance is to be fitted against a
wall with combustible cladding, the cladding
must be removed from the area covered by the
fascia. The cladding must also not touch the
fascia (See figure 4). We suggest that the
actual fascia is used as a template to mark the
area for combustible cladding removal and that
this area is increased by at least 2mm all round.
3.18
The minimum allowable distance from the outside of the appliance fascia to a
corner wall having combustible material or any other combustible surface which
projects beyond the front of the appliance is shown in figure 5.
Figure 5 also gives the necessary access clearance from a non-combustible surface at
both sides.
3.19
Proprietary terminals must comply with BS 715 or BS 1289. Any terminal or
termination must be positioned in accordance with BS 5440 Part 1 to ensure that the
products of combustion can be safely dispersed into the outside atmosphere. Where the
appliance is connected to an unlined brick chimney it is generally unnecessary for the
chimney pot to be replaced or for a terminal to be fitted unless the flue has a diameter
smaller than 170mm.
3.20
The appliance is fitted with an A.S.D (Atmosphere sensing device). If the
appliance closes down after a period of operation for no apparent reason, the consumer
should be informed to stop using the appliance until the installation and appliance have
been thoroughly checked. The A.S.D will shut the appliance down if an unacceptable
amount of harmful products of combustion accumulate. Under no circumstances should
the A.S.D be altered or bypassed in any way. Only a genuine manufacturers replacement
part should be fitted. The individual A.S.D components are not replaceable.
3.21
A fireguard complying with BS 8423 should be fitted for the protection of young
children, the elderly, or the infirm.
Page 11
INSTALLER GUIDE
Figure 4. Removal of combustible
cladding (Fascia may differ from that
shown)
