GB-6
GB
WARNING
The pre-purge duration is not included in the pro-
gram. Pre-purge until the combustion chamber has
been adequately ventilated.
5 Press the Reset/Information button for 1 s.
▷ The display indicates step
03
.
▷ The PFUs start the burners.
6 Press the Reset/Information button for 1 s.
▷ The display indicates step
00
.
▷ The PFUs switch off all the burners.
▷
By pressing the Reset/Information button repeat-
edly, the PFUs are activated to switch between
pre-purge (the display indicates step
01
),
burner
start (the display indicates step
03
) or burner off
(the display indicates step
00
).
PFA 70 in conjunction with PFU 780..L
Parameter 43 = 3
4 Press the Reset/Information button for 1 s.
▷ The display indicates step
01
.
▷ The PFUs start the burner pre-purge procedure.
WARNING
The pre-purge duration is not included in the pro-
gram. Pre-purge until the combustion chamber has
been adequately ventilated.
5 Press the Reset/Information button for 1 s.
▷ The display indicates step
02
.
▷ The PFUs start the pilot burners.
6 Press the Reset/Information button for 1 s.
▷ The display indicates step
03
.
▷ The PFUs start the main burners, the pilot burn-
ers remain switched on.
7 Press the Reset/Information button for 1 s.
▷ The display indicates step
00
.
▷ The PFUs switch off all the burners.
▷
By pressing the Reset/Information button repeat-
edly, the PFUs are activated to switch between
pre-purge (the display indicates step
01
),
pilot
burner start (the display indicates step
02
),
main
burner start (the display indicates step
03
) or
burner off (the display indicates step
00
).
High/Low operating mode
PFA 700 in conjunction with PFU 760..L
Parameter 43 = 4
4 Press the Reset/Information button for 1 s.
▷ The display indicates step
01
.
▷ The PFUs start the burner pre-purge procedure.
WARNING
The pre-purge duration is not included in the pro-
gram. Pre-purge until the combustion chamber has
been adequately ventilated.
5 Press the Reset/Information button for 1 s.
▷ The display indicates step
03
.
▷ The PFUs start the burners.
6 Press the Reset/Information button for 1 s.
▷ The display indicates step
04
.
▷ The PFUs 760..L activate the external air valves,
the burners switch to high-fire rate.
7 Press the Reset/Information button for 1 s.
▷ The display indicates step
03
.
▷
The PFUs 760..L deactivate the external air
valves, the burners switch to low-fire rate.
▷
Each time the Reset/Information button is
pressed, the air valves are opened (the burners
switch to high-fire rate, the display indicates
04
)
or closed (the burners switch to low-fire rate, the
display indicates
03
)
.
PFA 70 in conjunction with PFU 780..L
Parameter 43 = 4
4 Press the Reset/Information button for 1 s.
▷ The display indicates step
01
.
▷ The PFUs start the burner pre-purge procedure.
WARNING
The pre-purge duration is not included in the pro-
gram. Pre-purge until the combustion chamber has
been adequately ventilated.
5 Press the Reset/Information button for 1 s.
▷ The display indicates step
02
.
▷ The PFUs start the pilot burners.
6 Press the Reset/Information button for 1 s.
▷ The display indicates step
03
.
▷ The PFUs start the main burners, the pilot burn-
ers remain switched on.
7 Press the Reset/Information button for 1 s.
▷ The display indicates step
04
.
▷ The PFUs 780..L activate the external air valves,
the main burners switch to high-fire rate.
8 Press the Reset/Information button for 1 s.
▷ The display indicates step
03
.
▷
The PFUs 780..L deactivate the external air
valves, the main burners switch to low-fire rate.
▷
Each time the Reset/Information button is
pressed, the air valves are opened (the burn-
ers switch to high-fire rate, the display indi-
cates
04
) or closed (the burners switch to low-
fire rate, the display indicates
03
)
.