Filling The Condensate Trap; Bleeding The Gas Supply Valve; Checking The Combustion Air/Flue Gas Connection - Buderus Logamax Plus GB142-24 Installation Instructions Manual

8 Start-up procedure
For first time start up it is necessary to set the DHW temper-
ature knob and the space heating water temperature knob
to the desired setting (see subsection 9.3.2 and 9.3.3).
Factory setting is "0".
WARNING
There is a hot water scald potential if the BC10
is set too high.
8.3

Filling the condensate trap

 Make sure that you fill the condensate trap with water.
This is to prevent exhaust gases from entering the room.
 Remove the condensate trap (see fig. 32) by discon-
necting the connection to the heat exchanger and the
connection to the condensate bypass pipe.
 Fill with water and refit the condensate trap in reverse
order.
WARNING
Danger of fatal accident due to poisoning. If the
condensate trap is not filled with water, flue gas
can escape and put people's lives at risk.
8.4

Bleeding the gas supply valve

 Loosen the screw plug on the testing nipple for the gas
connection and venting (fig. 33, pos. 1) by two turns and
fit a hose.
 Slowly open the gas shut-off valve.
 Run the gas that is discharged through a water bath.
 Close the gas shut-off valve when no more air is
released.
 Remove the hose and tighten the screw plug again.
8.5 Checking the combustion air/flue gas
connection
Check the following points:
– Is the prescribed combustion air/flue system used?
– Have the instructions for configuring the flue system as
specified in the relevant Installation instruction for the flue
gas system been observed?
32 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
110 110
100 120
90
90 130
140
Fig. 32 Filling water into the condensate trap
1
Fig. 33 Bleeding the gas supply conduit
130
150
170
190