7.7. Connecting the appliance to the smoke exhauster
7.7.1. In order to remove all gas combustion products and to provide safe operation of the appliance the following
requirements to the smoke exhauster and gas fue pipe, connecting the appliance and the smoke exhauster, must be
fulfilled::
The smoke exhauster must be air-tight and resistant to thermal load and combustion products impact.
It is
unacceptable to use ventilation channels for combustion products removal;
The draught in the smoke exhauster must be in the range from 1,96 to 29,40 Pa (see table 1 and scheme 7);
The gas flue pipe material must be corrosion-resistant, non flammable and endure long-term operation at the
temperature up to 200
С (the recommended materials are: stainess, zinc plated or enameled steel, aluminum,
copper with wall thickness not less than 0,5 mm);
Gas flue pipe must have inner diameter not less than 110 mm;
Gas flue pipe
’s vertical section length from the appliance must be not less than 500 mm;
Gas flue pipe
’s length from the vertical section to the smoke exhauster must be not less than 2 m;
Gas flue pipe must have a slope of not less than 2
upwards toards the place of joint with the smoke exhauster
and a minimal number of turns (not more than three);
Gas flue pipe and its connection with the appliance must be airtight,
it is recommended to effect the connection
of the pipe to the appliance in accordance with scheme 10.
Variant
1
– gas flue pipe;
2
– hose of the gas removal device of the appliance
3
– thermoresistant sealer;
4
– thermoresistant aluminum tape.
Scheme 10. Scheme of gas flue pipe connection
7.7.2. A variant of connecting the appliance to the smoke exhauster is shown on scheme 11.
Smoke exhauster Gas flue pipe
Scheme 11. Connecting the appliance to the smoke exhauster
Correct
Wrong
The gas flue pipe
’s end is too
close to the opposite wall of the
smoke exhauster.
In the smoke exhauster there is a
hole on the level of the place of
connection of the gas flue pipe
(also with another device
connected to it).
Two devices have the same
connection to the smoke
exhauster.
