Mounting The Condensate Trap; Checking Gas Pressure - Slant/Fin VHG-100-CH Installation And Service Manual

Mounting the Condensate Trap

When mounting the bottom part of the condensate trap, before commissioning the boiler and/or after maintenance,
it must ALWAYS be completely filled with water.
WARNING
Figure 16.1
When the boiler receives a heat demand the electronics will start the operation of the boiler. Before the boiler is
used, the boiler must be adjusted and set to the minimum and maximum load/temperature.

Checking gas pressure

Check the gas pressure available at the gas connection pipe of the boiler. Use the pressure nipple [3] of the gas
safety valve for this measurement. Figure 17.1 shows the position of the gas pressure nipple [3]
Min. and max. gas supply pressures:
Type of Gas
Natural gas
Propane
Table 16.1
When mounting the bottom part of the condensate trap, before commissioning the
boiler and/or after maintenance, the condensate trap must ALWAYS be completely
filled with water.
This is a safety measure: the water in the condensate trap keeps the flue gases
from leaking out of the heat exchanger via the condensate drain.
The condensate trap must always be
filled to the edge with water, before
connecting it to the appliance.
p nom
[inch W.C./ mbar]
7.0 / 17.4
11.0 / 27.4
E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO
p min
[ inch W.C./ mbar]
3.5 / 8.7
8.0 / 19.9
p max
[ inch W.C./ mbar]
10.5 / 26.2
13.0 / 32.4
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