Technical data

791342 Inst. Gas 2.0 9

5. Installation instructions

5.1 Setting–up possibilities

The DVGW (DVGW = German technical scientific association on gas and water)

and the Technical regulations for liquid gas installations TRGI 86/96 give systematic

information about the different types of gas appliances, their exhaust gas evacuation

and their combustion air supply. Consequently, do observe vigorously the local

regulations, prescriptions and standards of your country for the installation of

catering gas appliances. Prior to setting up discuss the construction of the exhaust

gas system with the local chimney-sweep in charge and record the approved construction.

• Appliances of Type A are defined as units that can be operated without exhaust gas

evacuation installations. (A 3 with blower before the burner)

• Appliances of Type B are defined as units that must be operated with exhaust gas

evacuation installations. (B13, B23 with blower before the burner)

5.1.1 Set up under extractor hood

Exhaust air evacuation system in accordance with DVGW (DVGW = German technical

scientific association on gas and water) work sheet G 634.

Install in accordance with local prescriptions.

Gas appliances in accordance with type B

which are set up under an extractor hood, do not

need a flow safeguard. The pipe must end under

the flame protection filter with a clearance of 1,25

to 2 times its pipe diameter.

• The filters of the extractor hood must be

capable to withstand a waste gas temperature

of 500°C/932° F. Use a flame protection filter.

• If the exhaust gas of gas appliances type B

is extracted by a hood, precautions have to be

taken to ensure that the gas supply to the

burner is not released unless an extraction is

guaranteed.

5.1.2. Set-up unobstructed in the room (natural ventilation)

• If waste gas out of appliances type B 13 is

exhausted via ventilation ceilings, they must be

equipped with updraft lines and flow guards.

• The ceiling/cover materials must be heat

resistant and fireproof.

• The gas fitter

- assesses whether the combustion air supply

and the exhaust gas evacuationare sufficient,

- arranges suitable measures, if these

insufficient (e. g. increase of the ventilation

slots, forced ventilation, connection to waste

gas system).

Flame protection filter

Flow safeguard