Viessmann VITOTRONIC 100 GC1B Service Manual Page 89

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Start-up
89
Steps (continued)
5. Match the control unit to the system type
Set the following coding addresses in
coding 2:
”00” System type
”01” Single or multi-boiler system
”02” Burner type
”03” Oil or gas-fired operation
”07” Boiler number
”0C” Return temperature raising
”0d” Therm-Control is effective for ...
”4C” plug function
”4d” plug sL function
”4E” plug gS function
See page 117 for coding 2.
6. Check outputs (actuators) and sensors
Carry out relay test
1. Press and simultaneously for
approx. 2 seconds.
2. Select relay outputs with the or
button.
3. Press .
Relay test is activated.
Relay test is terminated.
The following relay outputs can be
selected depending on the system
equipment installed:
Display Relay function
11
Burner/stage 1 ON
12
Burner stage 1 and 2
ON/modulation open
13
Burner modulation neutral
14
Burner modulation closed
15
Output 20 ON
16
Output 29 ON
17
Output 52 open
18
Output 52 neutral
19
Output 52 closed
10
DHW pump ON
11
Central fault indicator ON
Check sensors
1. Press .
2. Scan sensors with or .
3. Press .
Scanning of operating status
information is activated
(see page 97).
Scanning is terminated.
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