26
02.
Turn rotary selector "
tr
" anti-
clockwise as far as it will go.
03.
Release the screw inside test con-
nector
A
but do not remove, then
connect the pressure gauge.
04. Open the gas shut-off valve. Start
the boiler.
05.
Turn rotary selector "
tw
" clockwise
as far as it will go (leave at that posi-
tion briefly), then turn it back.
"Serv" appears.
06.
Turn potentiometer
B
anti-clock-
wise with a screwdriver until the noz-
zle pressure indicated by the pres-
sure gauge corresponds to the
required heating output in accord-
ance with the nozzle pressure table
on page 24.
07. Close and pivot up the control unit.
08. Turn off the ON/OFF switch on the
control unit. Close the gas shut-off
valve, remove the pressure gauge
and close test connector
A
.
09. Turn rotary selectors "tw" and
"
tr
" back to their original posi-
tions.
10. Record the adjustment of the max.
heating output in the "Reports"
table.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5848 649 GB
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