Internal Leak Test - Buderus Logano GE434 Maintenance Instructions Manual

Heating system inspection and maintenance
! Clean and assemble the pilot burner.
! Fit the clean-out cover above the gas burner.
PLEASE NOTE
When fitting the gas burner, ensure that
the spacers are located on the threaded
studs.
! Carry out the gas burner assembly and installation in
reverse order to their removal (see "Removing the
gas burner", page 36).
! Replace gaskets, if necessary.
RISK TO LIFE
through the explosion of volatile gases.
Leaks may have been created on pipes
WARNING!
and fittings by the maintenance work.
! Carry out a proper leak test.
! Only use approved leak test agents to
discover leaks.
8.5

Internal leak test

! Check the inlet side of the gas train with a test
pressure of at least 100 mbar and maximum
150 mbar for internal leaks.
After one minute, the pressure drop may be a maximum
of 10 mbar.
Should the pressure drop be greater, carry out a full leak
test with foaming leak detector spray on all gas train
sealing points. Repeat the leak test, if you discover a
leak.
Replace the gas train, if you cannot detect a leak, and
the pressure drop is again greater than 10 mbar per
minute.
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
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
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