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VITOTRONIC 300 GW2
Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions
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VITOTRONIC
300
Installation
and
Service
Instructions
Vitotronic
300,
Model
GW2
Outdoor-reset
logic
digital
boiler
and
heating
c
ircuit
control
unit
Certified
as
a
component
part
of
Viessmann
boilers
only
Read
and
save
these
instructions
for
future
reference.
IMPORTANT
for
use
by
heating
contractor
5285
941
-
01
06/2015
Please
file
in
Service
Binder
2
Table of Contents
Installation
4
Service Instructions
1
General Information
2
Product Information
3
Table of Contents
4
System Types for Modulating Boilers
6
System Types for Condensing Boilers
12
Overview of Electrical Connections
18
Routing and Strain Relief of Cables
21
Inserting the Boiler Coding Card
22
Adjustment of the Fixed High Limit
23
Adjustment of the Adjustable High Limit
24
Connection of the Outdoor Temperature Sensor
25
Connection of the Boiler Temperature Sensor
26
Connection of Boiler Return Mixing-Valve or Modulating Valve Actuator
32
Compiled Failure Alarm Indicator
36
Connection of External Equipment to Plug Avh
39
Connection of External Controls
40
Connection of Combustion Air Device
45
Connection of Low Water Cut-Off Device
49
Burner Connection, Burner Control Wiring
51
Power Supply Connection, Boiler Control
55
Mounting the Front Part of the Control Unit
57
Opening the Control Unit
59
Start-Up Procedure (Overview)
63
Default Chapter
63
Procedure (Overview)
63
Controls and Indicators
64
Check Assignment of Heating Circuits
64
Steps
64
Check the Fixed High Limit
65
Select the Language (if Required)
65
Integrate the Control Unit in the LON BUS System (in Conjunction with Heating Circuits Connected Downstream)
66
Carry out Participant Check
67
Match the Control Unit to the System Type
68
Check Outputs (Actuators) and Sensors
68
Match the Coding Addresses
69
Adjust the Heating Curves
71
Overview of Service Levels
72
Scanning Operating Status Information
77
Scanning and Resetting the "Service" Display
78
Troubleshooting Steps
79
Diagnosis
80
Troubleshooting
81
Boiler Temperature Control
86
Heating Circuit Control
87
Functional Description
88
DHW Tank Temperature Control
90
Overview
92
Technical Data
93
System Components
94
Line-Voltage Motherboard
94
Low-Voltage Motherboard
94
Power Supply Unit Board
94
Electronics Board
94
Optolink/Emissions Test Switch Board
95
Programming Unit
95
Additional Information
95
Fuses
96
TEST Button
96
Adjustable High Limit
96
Outdoor Temperature Sensor
99
Strap-On Temperature Sensor/Immersion Temperature Sensor
102
Flue Gas Temperature Sensor
104
Installation Examples
105
Vitotrol 200
106
Remote Control
107
Vitotrol 300
108
Room Temperature Sensor
112
Input Module 0 to 10V
113
Coding 1
114
Call up Coding Level 1
116
Coding 2
116
Call up Coding Level 2
116
Reset Codings to Factory Settings
117
Overview of All Codings
117
Wiring Diagram
135
Wiring Diagram
139
Quick Reference
146
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Viessmann VITOTRONIC 300 GW2 Specifications
General
Brand
Viessmann
Model
VITOTRONIC 300 GW2
Category
Network Router
Language
English
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