21
4 Installation
4
.3 Gas supply
Risk of explosion!
Gas leaks can lead to the build up of explosive gas - air mixtures. With the presence of an
ignition source, these could lead to an explosion.
To avoid accidents, please comply to the following safety information on the gas train
installation:
• Observe the maximum permitted gas pressure feeding the gas train. Contact
your local gas supplier to obtain the connection pressure of the gas supply. The
connection pressure must not exceed the maximum pressure indicated on the burner
rating plate.
• Before beginning of work, close all the relevant shut off devices and ensure that they
cannot be accidentally reopened.
• Ensure the gas train components are correctly aligned and that all the joints are clean.
• Flange seals must be fitted correctly on the machined faces.
• Evenly tighten screws, diagonally opposite.
• Gas trains must be mounted stress free. Do not compensate misalignment by over
tightening. Do not tighten or seal pipe thread connections on the mounted burner.
• The gas train must be fixed and supported securely. It must not be allowed to
vibrate during operation. Supports suitable for the site should be fitted during
installation.
IMPORTANT
Ensure that all gas train components are installed in the correct order and that the flow
direction is correct for each component. Gas valves, actuators and gas pressure
regulators must only be installed in the vertical (upright) position. The gas train should be
supported in several places.
Additional installation notes:
In order to achieve better start conditions, the distance between the burner and the gas
valves should be as short as possible. Observe gas train layout and flow direction.
Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)
83055116 • 1/2016-05
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