GB-11
D
GB
NL
RUS
PL
F
E
UA
CN
Display and selection of the capacity setting
CAUTION
Only for testing in modulating operation. The
RGA 100 is optimally adjusted and sealed for the
low-fire rate. Afterwards, it is essential to switch
back to maximum capacity operation.
▷
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
maximum 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
2
4
To avoid damage to the heater
RGA 100, please observe the
following:
– CO
2
adjustment may only
be made using the adjusting
screw
2
.
–
The zero point setting
4
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 3 s.
▷
If the burner does not ignite after several at-
tempts, the inlet pressure is too low or the burner
pressure is set too low.
▷
Turn the adjusting screw
2
half a turn in the
+ direction using the Allen key.
2
0.8
1
1.5
2 2.5
3
4
5
+
▷
If the burner still does not ignite, turn the adjust-
ing screw further in the + direction.
▷
The burner pressure p
G
can be read during the
start-up process. The burner pressure should
not exceed the values in the table.
▷
If the burner starts successfully, you can observe
the flue gas analyzer to see how the λ and O
2
values change.
▷
Check the limit values for λ and O
2
.
16
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 adjusting screw
2
anti-clockwise.
Take the flue gas analyzer sensor out of the test
point immediately.
▷
The RGA is suitable for the following gas types:
Natural gas, LPG
Gas type
Heating
value
Wobbe
index
[MJ/m
3
]
Natural gas L G 25
32.49
41.53
Natural gas H G 20
37.78
50.71
LPG G 30
125.81
87.34
G+ K gas*
Gas type
Wobbe index [MJ/m
3
]
min.
max.
G+ K gas
43.46
45.3
* see page 27 (The Netherlands)
17
Allow the heater to operate for 10 minutes.
▷
During a normal start-up, it may take a few sec-
onds for the main fan to start the cooling process.
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