4.17
The minimum height from the base of the fireplace opening to the underside of
any shelf made from wood or other combustible materials is shown below:-
•
For a shelf up to 150mm deep
Minimum height = 750mm.
•
For a shelf deeper than 150mm
Minimum height = 750mm + 12.5mm for every 25mm depth over 150mm.
(See graph 1).
4.18
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.
4.19
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.
4.20
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.
Page 13
INSTALLER GUIDE
©
Baxi Heating U.K. Limited 2007.
Graph 1. Combustible shelf clearances
