Vents; Gas Connection Procedures - GEM KMG Series Installation And Maintenance Manual

10.1 • U nder no circumstances must vents A
and B be shut, blocked or ducted into
other pipes.
A - Vent to extract vapours from the oven
B - Safety vent
11.1 • GAS CONNECTION
The section of the gas supply pipe must be
chosen according to the type of gas and
the consumption of the appliance to be
connected. The system must be designed
and installed in accordance with current
regulations. T h e g a s c o n n e c t i o n o n
the oven is R 1/2" or R 3/4", and this
section must never be reduced.
A fast acting shutoff valve must be installed
on the gas inlet line to the oven. The valve
must be type test approved in accordance
with current regulations.
The connection to the gas main can be
permanent or detachable; if flexible metal
tube is used, this should be made of a
stainless and corrosion resistant material
(rubber hose is not recommended).
If when making the connection you use any
sealing materials, they must be type test
approved for this purpose.
11.2 • LEAK TEST
All connections between the mains and
the appliance must be tested for leakage.
The recommended method is to use a
proprietary leak detection spray; alternatively,
a non-corrosive foamy liquid of any general
description can simply be brushed onto
the fittings: whichever method is used, no
bubbles should appear.
Never under any circumstances test for
gas leaks with a naked flame!
10 • VENTS
11 • GAS CONNECTION PROCEDURES
11.3 • EXHAUSTING FLUE GASES
Model with 5, 6 and 7 pans GN 1/1
Since this appliance due to its capacity has
installation type A3, it is not necessary to
connect it to a stack for extracting the flue
gases. The flue gases can be exhausted into
the installation room. It is especially important
to have good, continuous ventilation!
Remaining models
As these ovens have a power rating of
>14 kW, type B installation is required. The
installer must select one of the methods
described below, according to the design
of the building and of the room where the
appliance is sited. The diameter of the flue
pipes must be as indicated in the installation
diagrams.
Warning:
flue gases may reach temperatures of 400
°C!
Fumes must never be ducted away utilizing
an extraction system!
Clear the gas supply system of any
machining debris before connecting the
oven!
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90027360rev00
A B