GB-10
D
GB
F
NL
I
E
6
Place the analyzer sensor in the test point.
7
Ensure that there is no air in the gas system.
8
Switch on the power supply.
9
Release the gas supply.
0
Measure the CO and CO
2
values simultaneously
and observe them.
Switch on the burner control unit. Press ON/OFF
OFF
1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
until an LED lights up.
▷
The burner control unit switches on in the last
operating mode selected.
Select operating mode
2
Heating.
Display and selection of the capacity setting
▷
This display is only possible when the heater is
switched on.
▷
The current capacity setting can be displayed by
pressing and holding the MODE selection button
in operating mode
2
Heating.
min.
max.
▷
If the top dash is lit, the heater is operating at
full capacity.
▷
If the bottom dash is lit, the heater is operating
at minimum capacity.
▷
If the dash flashes, the heater has not yet
reached the capacity setting.
▷
When the capacity setting has been reached,
the dash will be lit for 15 s. During this time, you
can switch between minimum and maximum
capacity setting by pressing and holding the
MODE selection button again.
▷
The display will go out after 15 s. The display
can be reactivated by pressing and holding the
MODE selection button again.
▷
The display can be cancelled at any time by
pressing the RESET button.
Setting the high-fire rate
CAUTION
To avoid damage to the heater TR, please observe
the following:
– CO
2
adjustment may only be made at the re-
strictor
D
.
–
The zero point setting is sealed and should not
be changed.
▷
The heater must be operated at maximum ca-
pacity.
▷
Having initiated the ignition process, the burner
should start within 4 s.
▷
If the burner does not ignite after several at-
tempts, the CO
2
value is set too low.
▷
Turn the restrictor half a turn in the + direction
using the Allen key.
+ –
D
+–
N
k
p
u
–
+
CO
2
–
+
CO
2
▷
If the burner still does not ignite, turn the restrictor
further in the + direction.
▷
If the burner starts successfully, you can watch
on the flue gas analyzer how the CO
2
value rises.
Monitor the CO value.
▷
During a normal start-up, the CO value will rise
briefly and then fall quickly again.
CAUTION
To avoid damage to the heater and flue gas analyzer,
please observe the following:
–
The CO value may rise briefly to 500 ppm im-
mediately after ignition.
If the CO value does not drop after a short time,
immediately reduce the CO
2
value by turning
the restrictor
D
clockwise.
Take the flue gas analyzer sensor out of the
test point immediately.
4
Allow the heater to operate for 10 minutes.
▷
During a normal start-up, it may take up to 15 s
for the main fan to start the cooling process.
5
Set the CO
2
value on the combination control
to the correct value shown in the table.
CO
2
[%-by-
vol.]
Inlet pressure
p
u min.
[mbar]
p
u max.
[mbar]
Natural gas L G 25
9.6
18
70
Natural gas H G 20
9.6
17
70
Butane G 30 LPG
13.4
25
70
Propane G 31 LPG
12.3
42.5
70
▷
If the measured CO
2
value corresponds to the
details on the type label and in the table, the
heater has been set correctly. Otherwise, con-
tinue with the measurement and fine adjustment
until the heater is correctly set.
▷
High-fire rate adjustment is now complete.
6
The low-fire rate setting must be checked.
