102
14.1.5 A
DJUSTMENT ACTIONS
:
GENERAL SCHEME
General scheme for adjustment of the gas valve(s). Consult this scheme for an overview.
To complete all necessary adjustments in right order, follow case
A
or
B
top-down through the scheme (
B
involves
a few extra steps (grey text blocks)):
GENERAL SCHEME: ADJUSTMENT STEPS
Case A
New boiler or
service check
Case B
Valve replacement or
gas conversion
Start
Adjusting the top burner
– upper measuring hole
T
o
p
bu
rn
er
Go to service mode
In case of gas conversion: set parameter
P4BD to the correct gas type at the left panel
(top burner).
First close screw [2] of the valve,
then open it according to table 2.
Go to service mode.
I
f burner doesn’t start,
open screw [2] ¼ turn extra.
1) Maximum load: check and adjust
2) Minimum load: check and adjust
Repeat steps 1) and 2) until measurements match table 1 or figure 1 or 2
Switch top burner off, proceed with bottom burner
Next
Adjust the bottom burner
– lower measuring hole
B
o
tt
o
m b
u
rn
er
Go to service mode
In case of gas conversion: set parameter
P4BD to the correct gas type at the right
panel (bottom burner)
First close screw [2] of the valve,
then set it in accordance with table 2
Go to service mode
I
f burner doesn’t start,
open screw [2] ¼ turn extra
1) Maximum load: check and adjust
2) Minimum load: check and adjust
Repeat steps 1) and 2) until measurements match table 1 or figure 1 or 2
Check
check with both burners burning -
1.
upper measuring hole
2.
lower measuring hole
B
o
th
bu
rn
er
s
Set bottom burner to 50% load, start top burner and set it to 50% load
Set both burners simultaneously to maximum load
(▲ 2x)
1)
Check at maximum load. Measure 2x: top and bottom, and average
Set both burners simultaneously to minimum load
(▼ 2x)
2)
Check at minimum load. Measure 2x: top and bottom, and average
If measurements 1) and 2) match table 1 or figure 1 or 2, adjustment is correct
If the deviation is to large start all over again: check and adjust burners sepa-
rately
Boiler returns to NORMAL MODE after 40 min. OR by pressing [SERVICE] button
