Viessmann Vitopend 100-W Installation And Service Instructions Manual page 25

Further details regarding the individual steps
06.
Turn potentiometer B with a screw-
driver anti-clockwise, until the noz-
zle pressure at the pressure gauge
corresponds to the required heating
output in accordance with the nozzle
pressure table on page 23.
Commissioning, inspection, maintenance
(cont.)
07. Close and flip up the control unit.
08. Switch OFF the ON/OFF switch on
the control unit, close the gas shut-
off valve, remove the pressure
gauge and close test nipple A.
09. Turn the rotary selectors "tw" and
"tr" back to their original posi-
tions.
10. Record the adjustment of the max.
heating output in the "Reports"
table.
11. Open the gas shut-off valve and
start the appliance.
Danger
Gas escaping from the test
nipple leads to a risk of
explosion.
Check the test nipple for gas
tightness.
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