Operating instructions

1. Clos e the gas shut-off v alve.
2. Releas e screw A inside test nip-
ple "PE" on the gas combination
valve, but do not remove it; then
connect th e pressure ga uge.
3. Open the ga s shut-off valve.
4. Record the staticpressureand
record it in the service report on
page 117.
Set value: max. 57.5 mbar
5. St art up the boi ler.
Note
During commis sioning, the boi ler
can enter a fault state because of
airlocks in the gas pipe. After
approx. 5 s press "E"toresetthe
burner.
6. Check the supply (flow) pressure.
Set value:
&
Natural gas: 20 mbar
&
LPG (only 26 kW): 50 mbar
Note
Use suitable tes t equipment, wi th a
resolution of at least 0.1 mbar, to
measure the s upply press ure.
7. Record the actual value in the ser-
vice report on page 117.
Taketheactionshowninthetable.
Supply (flow)
pressure for nat-
ural gas
Supply (flow)
pressure for
LPG (onl y 26 kW)
Measures
below 17.4 mbar below 42.5 mbar Never start up. Notify your mains gas
or LPG sup plier.
17.4 to 57.5 mbar 42.5 to 57.5 mbar Start up the boiler.
in excess of
57.5 mbar
in excess of
57.5 mbar
Install a separate ga s governor down-
stream of the system and regulate the
inlet pressure to 2 0 mbar for natural
gas or 50 mbar for LPG. Notify your
mains gas o r LPG suppl ier.
Further details regarding the individual steps (cont.)
14
Initial start-up, inspection, maintenance
5692 619 GB