10/2010 - Art. Nr. 4200 1030 6900A
12
Commissioning
Burner power adjusting sequence
SQM actuator switch assignment
Description
Pre setting
Function
I
125°
Max. power
(air and gas)
II
5°
Closed flaps
(air and gas)
III
20°
Gas min.
power
IV
-
Not used
V
-
Not used
Setting sequence (short description)
• In electrical cabinet, set switch on
"local control / hand" position or
• Adjust min. power switch (minimum
flame power), for example on 20°
• Adjust max. power switch (maximum
flame power) for example on 125°
• Check air shut-off switch (0°)
• Switch burner on
• Air flow-rate setting (min. power).
Screws (Pos.
1
) allow the combustion
air flow-rate setting. Rotation to the
left : less air. Rotation to the right :
more air.
• Increase power gradually up to max.
power, either using "higher - lower"
"
+/-
" switch, either by disengaging the
actuator. During adjustment,
continuously check emissions of CO,
CO
2
and soot!
• Adjustment of max. power by setting
the air flow-rate and adjusting the gas
pressure. Adjust the max. power
switch again. Burner power should
never exceed the max. heat generator
allowed flame power.
(see chapter entitled ’’Exhaust gas test’’)
• Decrease power gradually down to
min. power using "higher - lower" "
+/-
"
switch, while accurately refining the air
flow according to the new defined gas
pressure.
• Register in a measurement report the
main data (flow rates, power, gas
pressure, air pressure, combustion
values) for at least three power levels
(min. power, intermediate power,
max. power).
• Adjust min. power switch (minimum
flame power) on the desired min.
power.
• Switch burner off
• Set switch on "automatic operation /
remote control" position
.
• If fitted : go on with the electrical
modulating power controller setting
Gas pressure setting
Gas train VGD
• Remove protection cap on SKP25
• Set gas pressure
pBr
using screw
S1
(hidden by the cap)
• Check setting : position of the index in
relation with the scale
X
Gas train MBC
• Set gas pressure
pBr
using screw
S2
Caution!
Gas output pressure (regulator output
pressure) must be adjusted lower than
the input pressure, but
higher than the
total gas pressure loss of the heating
plant.
Q
·
F
Q
·
N
η
-
-
-
-
-
-
-
-
=
VGD ...
MBC ...
