88
5.
Enter the actual value into the report.
6.
Set the upper heating output (see page 88).
7.
Check the CO
2
content. Should the actual value
deviate from the aforementioned ranges by more
than 1 %, implement steps detailed on page 87.
8.
After testing, press
OK
.
9.
Enter the actual value into the report.
Select higher/lower heating output
Service menu
1. Press
OK
and
å
simultaneously for approx. 4 s.
2.
"Actuator test"
3. Select the lower heating output:
Select
"Base load OFF"
. Then
"Base load ON"
appears and the burner operates at its lower heating
output.
4. Select the upper heating output:
Select
"Full load OFF"
. Then
"Full load ON"
appears and the burner operates at its upper heat-
ing output.
5. Ending output selection:
Press
ä
.
Fuel cell module
1.
Connect a flue gas analyser at flue gas port
B
on
the boiler flue connection.
2.
Check the CO content.
The CO content must be < 1000 ppm for all gas
types.
If the fuel cell module is not operating, see the
"Emissions test mode" chapter in the operating
instructions.
Checking the flue system for unrestricted flow and tightness
Matching the control unit to the heating system
The control unit must be matched to the system equip-
ment level.
■
To do this, select the applicable system scheme.
"System examples"
■
Set the codes according to the accessories fitted:
Accessories installation and service instruc-
tions
Note
Various system components are recognised automati-
cally by the control unit and the relevant codes are set
automatically.
For individual coding steps, see page 92.
Adjusting the heating curves
The heating curves illustrate the relationship between
the outside temperature and the boiler water or flow
temperature.
To put it simply, the lower the outside temperature, the
higher the boiler water or flow temperature.
The boiler water or flow temperature in turn affects the
room temperature.
Settings in the delivered condition:
■
Slope = 1.4
■
Level = 0
Note
If the heating system includes heating circuits with mix-
ers, then the flow temperature of the heating circuit
without mixer is higher by a selected differential (8 K in
the delivered condition) than the flow temperature of
the heating circuits with mixers.
The differential temperature is adjustable via coding
address "9F" in the
"General"
group.
Commissioning, inspection, maintenance
Checking the combustion quality
(cont.)
5775 636 GB
Summary of Contents for C3TB
Page 136: ...136 Troubleshooting Repairs gas condensing module cont 5775 636 GB Diagnosis ...
Page 143: ...143 Parts lists Heat cell assembly 5775 636 GB Components ...
Page 160: ...160 Parts not shown 0009 PCB IU100 B30 Parts lists Fuel cell assembly 5775 636 GB Components ...
Page 161: ...161 Parts lists Fuel cell assembly cont 5775 636 GB Components ...
Page 187: ...187 5775 636 GB ...
