Download - Buderus
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11<br />
Inspection<br />
11.3 Internal leak testing<br />
• Switch off the heating system using the main switch.<br />
• Test for internal leaks of the gas burner fitting on the inlet<br />
side, applying a test pressure of 7.0 inch W.C.<br />
(17.4 mbar) in case of natural gas and 11.0 mbar<br />
(27.4 mbar) in case of LPG.<br />
After one minute the pressure must not have dropped by<br />
more than 3.8 inch W.C. (10 mbar).<br />
• If the pressure has dropped more, you must check all<br />
gaskets and joints upstream of the gas burner fitting for<br />
leaks using a foaming agent. Repeat the pressure test if<br />
no leaks are found. If the pressure has again dropped by<br />
more than 3.8 inch W.C. (10 mbar) per minute you will<br />
have to replace the gas burner fitting.<br />
11.4 Measuring the ionization current<br />
See subsection 8.12 "Measuring the ionization current",<br />
page 37.<br />
11.5 Measuring the inlet gas pressure<br />
See subsection 8.7 "Inlet gas pressure", page 33.<br />
11.6 Checking and adjusting the gas/air ratio<br />
See subsection 8.8 "Checking and adjusting the gas/air<br />
ratio", page 34.<br />
11.7 Carrying out a gas leak test in operating<br />
conditions<br />
See subsection 8.9 "Carrying out a leak test in operating<br />
conditions", page 36.<br />
11.8 Measuring the carbon monoxide content<br />
(CO)<br />
See subsection 8.10 "Measuring the carbon monoxide<br />
content (CO)", page 36.<br />
11.9 Carrying out a pressure test of the<br />
heating system<br />
See chapter 8 "Start-up procedure", page 30.<br />
11.10 Checking the functioning and the safety<br />
of the air intake and flue gas conduit<br />
See subsection 8.5 "Checking the combustion air/flue gas<br />
connection", page 32.<br />
11.11 Checking venting systems<br />
Check air intake and flue gas for obstruction or damage.<br />
48<br />
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!