Combustion Analysis - Elco R601 Betriebsanleitung

Commissioning

Combustion analysis

1
R601
2
4
R602 - R607
2
4
3
Combustion check at full load
Start the boiler in controller stop mode
and go to 50% load. Now the boiler
operates at 50% load. Allow the boiler
to stabilise the combustion for 3 minu-
tes. Then increase the boiler load step
by step up to 100%. Check the gas
pressure on the inlet of the gas valve
while increa-sing the boiler load: the
gas pressure should never go below
the minimum required value
technical data. Set the minimum gas
pressure switch (1) at 75% of the
required gas pressure.
Check the combustion settings via the
test point in the chimney connection(3).
If necessary, correct the settings with
the flat adjustment screw on the outlet
of the gas valve (2).
Combustion check at minimum load
Switch the boiler to minimum load (0%).
Check the combustion settings the sa-
me way as described for full load. If
necessary, correct the settings with the
allen key adjustment screw on either
side of the gas valve (4).
Combustion check at 50% load
An additional reference check of
combustion values at 50% load is
recommended in order to check if the
gas valve is set in such way, that the
modulating behaviour is normal. The
CO value should be in between the
2
settings of full load and minumum load.
CO value should be equal to full load
and minimum load values.
Make sure that the boiler is set to
automatic operation and controller stop
mode is disabled after the combustion
test is finished.
Combustion settings
for natural gas G20 / G25
CO %
2, max
Combustion settings
for LPG G31
see Convert boiler before operation
(see coversion kit instruction)
CO %
2, max
Combustion settings
for natural gas G20 / G25
CO %
2, min
Combustion settings
for LPG G31
Convert boiler before operation
(see coversion kit instruction)
CO %
2, min
R601-R607
10.2 ± 0.2
R601-R607
11.9 ± 0.2
R601-R607
9.4 ± 0.2
R601-R607
10.0 ± 0.2
21