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Commissioning, inspection, maintenance
Checking the combustion quality
Fuel cell module
1. Connect a flue gas analyser at flue gas port
the boiler flue connection.
Note
The fuel cell module must be in operation (power
generation) for the measurement.
2. Check the CO content.
The CO content must be < 1000 ppm for all gas
types.
Checking the flue system for unrestricted flow and leaks
Adjusting heating curves
The heating curves represent the relationship between
the outside temperature and the flow temperature.
To put it simply, the lower the outside temperature, the
higher the flow temperature.
The flow temperature in turn affects the room tempera-
ture.
Factory settings:
■
Slope = 1.4
■
Level = 0
90
80
70
60
50
40
30
10
Fig. 70
Slope setting ranges:
Underfloor heating systems: 0.2 to 0.8
■
Low temperature heating systems: 0.8 to 1.6
■
80
on
A
Slope
5
0
-5 -10 -15 -20
Outside temperature in °C
(cont.)
Note
A CO
or O
test on the fuel cell module is not neces-
2
2
sary.
Note
If the heating system includes heating circuits with
mixer, then the flow temperature of the heating circuit
without mixer is higher by a selected increase (8 K in
the delivered condition) than the flow temperature of
the heating circuits with mixer.
The set flow temperature increase can be adjusted via
parameters.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
-25
-30
Set room temperature
Standard room temperature or comfort room tem-
perature
Individually adjustable for each heating circuit.
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