Checking The Air Inlet Diaphragm; Bleeding The Gas Supply Pipe; Making The Heating System Ready For Operation; Commissioning The Control Unit And Burner Without Controller Rc35 - Buderus Logano plus GB312 Installation And Service Instructions Manual

7.5

Checking the air inlet diaphragm

▶ Check that the air inlet diaphragm on the air inlet connection is
present and in contact with the pipe.
▶ Check that the air inlet diaphragm on the air inlet connection is able
to move and does not stick to the pipe.
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2 1
Fig. 39 Checking the air inlet diaphragm
[1] Air inlet diaphragm
[2] Air inlet connection
[3] High gas pressure switch (accessory)
[4] Low gas pressure switch (accessory)
7.6

Bleeding the gas supply pipe

▶ Remove threaded plug from test point for gas supply pressure on gas
valve inlet flange.
▶ Install the pressure test port.
▶ Attach hose to pressure test port.
▶ Slowly open the gas shutoff valve on the back of the boiler.
▶ Burn off the escaping gas through a water seal.
▶ Once no more air is expelled, remove the hose.
▶ Remove the pressure test port.
▶ Carefully reinstall and tighten threaded plug in test point for gas
supply pressure.
▶ Close the gas shutoff valve on the back of the boiler.
Logano plus GB312 – 6 720 806 273 (2013/01)
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Placing the heating system in operation
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2
Fig. 40 Bleeding the gas supply pipe
[1] Pressure test port for measuring the gas supply pressure and
bleeding Gas valve: Honeywell V4730C
[2] Threaded plug
7.7

Making the heating system ready for operation

▶ Turn on the fuel supply on the main fuel container and downstream of
the gas valve.
▶ Switch on the heating system emergency stop switch (if present)
and/or the appropriate circuit-breaker.
7.8 Commissioning the control unit and burner without
controller RC35
Follow the instruction manual for the BC10.
Refer to the AM10 Application Manual for GB312 start-up instructions.
If the boiler is not being used with an RC35 user interface, it can be
commissioned by means of a PC with the Logamatic Eco-Soft 400/EMS
software and a service key.
Please contact Buderus for more detailed information.
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