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PYROGAS VARINO 65 - 300
We reserve the right to make changes to dimensions and construction 15 Edition 02.09.2015
© Copyright YGNIS AG CH-Ruswil
6.8. Gas connection
The maximum gas connection pressure (flow pressure) must not exceed the value given in the chapter
"Technical data". For this purpose, the customer may have to install a gas admission pressure regulator
( available as accessory for models PYROGAS VARINO 150-300).
The model VARINO 300 is optionally also available as 100-300 mbar version. This version comprises a gas
pressure regulator with filter that is to be mounted directly on the boiler's gas train. Mounting and regulating
instructions come with the equipment. Make sure that the outlet pressure of the regulator corresponds to 20-25
mbar.
Before the condensing unit is connected to the gas line, it must be made sure that the line has been blown
through and is free from particles and chips.
A shut-off valve must be installed in the gas supply line to the burner.
If boiler rooms without pressure relief openings are located in the basement, a shut-off device automatically
controlled by the burner may have to be fitted in the gas line (observe local regulations). In this process, the gas
supply is interrupted during operational stand-still of the burner. A supply terminal is available on the boiler for
this purpose (external gas valve).
Notes: The whole gas installation may only be carried out by a licensed installation company.
Installation must be in accordance with local regulations.
At commissioning as well as after each opening the gas train is to be checked for
leakage (leak spray).
The installation may only be operated with the intended gas quality observe
additional plate on burner!
VARINO 300 / 100-300 mbar version: Before the condensing unit is connected to the
gas line, the supplied gas pressure regulator with filter must be fitted directly on the
gas train of the unit!
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