Filling The Condensate Siphon; Checking The Gas Setting - Vaillant ecotec plus Installation And Maintenance Instructions Manual

6 Start-up
appears in the display. Fill the system up with
water before you start up the boiler again. This
message also appears if you switch the boiler
on when it is empty and disappears
automatically when it is filled.
Caution!
a
Risk of damage from leaking water!
If the pressure drops frequently the reason for
the loss of heating water must be identified and
eliminated.
• Open the combined filling and emptying valve and the
draw-off valve slowly and add water until the required
system pressure is shown on the pressure
gauge/display.
• Close the draw-off valve.
Note!
h
Use the check program P.0 to bleed the heating
installation: The boiler does not start up. The
internal pump runs intermittently and bleeds
the appliance circuit. The pressure is displayed
digitally. Ensure that the system pressure does
not fall below 0.8 bar when bleeding is in pro-
gress. Otherwise the bleeding will not be carried
out properly. The bleeding program takes about
6.5 minutes to complete.
• Bleed all the radiators.
• Check the system pressure again.
a Caution!
If too much air is still in the system after the
bleeding program is finished it must be started
again! Once the filling procedure is complete
the system pressure should be at least 0.2 bar
above the back-pressure from the expansion
 P
vessel (P
system
• Check all connections for leaks.
h Note!
When the boiler starts operating a maintenance
or fault message may occur due to falling
system pressure. The message disappears
automatically when the boiler is refilled.
26
+ 0.2 bar).
ADG

6.2.3 Filling the condensate siphon

Fig. 6.3 Filling the condensate siphon
Danger!
d
If the boiler is operated with an empty
condensate siphon, there is danger of poisoning
through escaping flue gases. Therefore it is
mandatory to fill the siphon as described below
before start-up.
• Screw off the bottom (1) of the condensate siphon.
• Fill the bottom about 3/4 with water.
• Screw the bottom back on the condensate siphon.
6.3

Checking the gas setting

Caution!
Malfunctions or reduction in working life of the
boiler!
If the boiler version does not correspond to the
local gas family, there will be malfunctions or
you have to change components of the boiler
ahead of schedule, e. g. do not use a LPG boiler
on natural gas.
• Before starting up the boiler compare the
details of the type of gas specified on the
identification plate with the type of gas
supplied at the installation site.
If the boiler version corresponds to the local gas family:
• Proceed as described below.
If the boiler version does not correspond to the local gas
family:
• Perform the gas conversion in accordance with the
gas conversion kit 0020010641.
Installation and maintenance instructions ecoTEC plus 0020214490_00
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