Installation and operating instruction
Gas burner WG40…/1-A ZM-LN
5 Installation
83300002 1/2019-02 La
24-128
5 Installation
5.1 Gas supply
DANGER
Risk of explosion due to leaking gas
Gas leaks can lead to a build-up of explosive gas/air mixture. With an ignition
source present this can result in an explosion.
Install gas supply with care.
Observe all safety instructions.
Only an approved gas installer may carry out the gas side connection. Observe
local regulations.
The following should be obtained from the gas supply company:
Type of gas
Gas connection pressure.
Maximum CO
2
content in the flue gas.
Calorific value in normal condition [kWh/m
3
].
Observe maximum permissible pressure of all components of the gas valve train.
Close all fuel shut off devices prior to commencing work and protect from acci-
dental re-opening.
General installation instructions
Install manually operated shut off device (gas isolating valve) in the supply.
Ensure correct mounting alignment and cleanliness of sealing surfaces.
Mount valve train free of vibration. It must not be allowed to swing. Suitable sup-
ports should be fitted.
Mount gas valve train free of stresses.
The distance between burner and Multifunction assembly and/or double gas
valve and pressure regulator should be as small as possible. If the distance is too
great, it is possible that a gas/air mixture is formed, which will influence burner
start.
Observe sequence and flow direction of gas valve train.
If necessary, fit thermal shut off device (TAE) in front of the gas isolating valve.
Installation position
Multifunction assembly and/or double gas valve and pressure regulator can be in-
stalled with the axis standing vertical to lying horizontal.
