Checking The Mains Gas Pressure - Buderus Logano GE434 Maintenance Instructions Manual

Heating system start-up

6.1.8 Checking the mains gas pressure

PLEASE NOTE
! Ensure that both gas burners are
operating for the following checks.
! Release the plug on the test port for gas supply
pressure and venting (Fig. 9, Item 1) on the gas train
by two turns.
! Push the test hose of the U-tube pressure gauge
onto the test nipple (Fig. 9, Item 1).
! Check the gas supply pressure when the burner
operates. Record the value in the commissioning
report.
– Contact your local gas supplier if insufficient gas
supply pressure (Table 13, page 26) is entering your
system.
– Install a secondary gas pressure regulator upstream
of the gas train, if the gas supply pressure is too high.
! Pull the test hose off again.
! Carefully tighten the plug on the test port for gas
supply pressure and venting (Fig. 9, Item 1).
We reserve the right to make any changes due to technical modifications.
Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003
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Fig. 9 Checking the mains gas pressure
Item 1: Test port for gas supply pressure and venting
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
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