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VITOTRONIC 100 GC1B
Service Manual
Viessmann VITOTRONIC 100 GC1B Service Manual Page 126
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Table of contents
TROUBLESHOOTING
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Additional information
126
Wiring
Diagrams
(continued)
Low-voltage
motherboard
5351 338
v1.6
A1
1
A8
A9
A6
A7
A2
A10
34
-
-
pole
1
2
...
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Installation and
1
Service Instructions
1
VITOTRONIC 100, GC1
1
General information
2
Product Information
4
General Information
5
Heating System Types
5
Start-up
6
Scanning Service Information
6
Troubleshooting
6
Functional Description
6
Additional Information
6
Circuit Diagram 1
8
Circuit Diagram 1 (continued)
9
Circuit Diagram 2
10
Circuit Diagram 3
11
Circuit Diagram 3 (continued)
12
Circuit Diagram 4
13
Circuit Diagram 4 (continued)
14
Circuit Diagram 5
15
Circuit Diagram 5 (continued)
16
Circuit Diagram 6
17
Circuit Diagram 6 (continued)
18
Circuit Diagram 7
19
Circuit Diagram 7 (continued)
20
Circuit Diagram 8
21
Circuit Diagram 8 (continued)
22
Circuit Diagram 9
23
Circuit Diagram 9 (continued)
24
Circuit Diagram 10
25
Heating system types
26
IMPORTANT
26
Circuit Diagram 11
27
Circuit Diagram 12
29
Circuit Diagram 13
31
Circuit Diagram 14 (CM2 only)
33
Circuit Diagram 15 (CM2 only)
35
Installation
37
Sensor Connection
49
(CM2 only)
72
Procedure (overview)
84
Steps (continued)
86
Overview of Service Levels
92
Scanning service information
93
Troubleshooting Steps
99
Diagnosis
100
Diagnosis (continued)
101
Boiler Temperature Control
105
Heating Circuit Control
106
DHW Tank Temperature Control
106
Functional description
107
Overview
108
Technical Data
109
System Components
109
System Components (continued)
110
Coding 1
115
Coding 1 (continued)
116
Coding 2
117
Coding 2 (continued)
118
Coding 2 ((continued)
119
Wiring Diagrams
125
Wiring Diagrams (continued)
126
GC1 Series
130
Parts List
131
Additional information
132
Quick Reference
132
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