Installation; Boiler - DeDietrich GT 123 A Installation And Maintenance Manual

1 Installation

Water level
Check the water level in the installation regularly, and if necessary
top it up without allowing sudden inlet of cold water into the hot boiler.
This operation should only be necessary a few times per season; if it
has to be done more frequently, there is probably a leak which should
be found and corrected without delay.

2 Boiler

Please note that an efficient boiler is a clean boiler.
The boiler must be cleaned as often as necessary and, like the
chimney, at least once a year or more depending on:
- the regulations in force,
- the insurance contract taken out.
The boiler cladding front panel has to be removed to access the
various devices to be maintained and checked.
Proceed as follows :
Lift the window.
Unscrew the two front cap side attachment screws.
Unclip the front cap from the clips near the top.
Remove the front cap from the notches at the bottom of the side
panels.
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Savety devices
Check that safety devices, and particularly the heating circuit safety
valve, are working correctly at regular intervals, and at least when the
boiler is cleaned.
Note
It is recommended that an boiler should never be drained unless
absolutely necessary.
For example: when leaving for several months when there is a risk of
frost in the building.
The operations described below shall always be performed
with the boiler and the power supply switched off.
Shutoff the fuel supply when servicing or if the boiler is intended
to be shutdown for an extended period of time.
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GT 120 A - GT 1200 A
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