47
Gas system boiler (heat only)
A
Test connector
B
Cap
C
Bolt
D
Phillips screw
01. Turn off the ON/OFF switch on the
control unit (the boiler shuts down).
02. Close the gas shut-off valve.
03.
Undo screw in test connector A,
but do not remove. Connect the
pressure gauge.
04. Open the gas shut-off valve. Turn
ON the system ON/OFF switch on
the control unit.
05. Set the upper heating output
Ensure heat is being drawn off by
the heating system.
1. Hold down MODE and simul-
taneously for approx. 5 s.
■
"SEt" and flash.
■ "PL:1" is shown on the addi-
tional display.
2. Press MODE.
"P01" is shown on the main dis-
play.
3. OK to confirm
4. Use to select "On".
5. OK to confirm
"LO" is shown in the additional
display.
6. Press MODE.
7. Use to select "HI".
The burner now operates at the
upper heating output.
06.
Undo cap B from the gas train.
07. Test the nozzle pressure at the
upper rated heating output. In the
case of deviations from the value
shown in the following table, adjust
the nozzle pressure for the upper
rated heating output at screw
C
(spanner size 10).
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5837146
Service
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