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Viessmann KW10A Installation, Start-Up And Service Instructions
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Installation, Start-up
and Service Instructions
for use by engineers and heating contractors
5712 717 v1.0 06/2011
Read and save these instructions
for future reference
.
Vitotronic 100
Model KW10B
For modulating temperature heating systems
Part No. 7834 238
VITOTRONIC 100
Please file in Service Binder
IMPORTANT
Ce
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part for Viessmann boilers
2
Table of Contents
Safety, Installation and Warranty Requirements
2
Product Documentation
2
Licensed Professional Heating Contractor
2
Advice to Owner
2
Warranty
2
Table of Contents
3
Safety
5
Approvals
5
Codes
5
Working on the Equipment
5
Technical Literature
5
Important Regulatory and Installation Requirements
6
Power Supply
6
Working with an Open Control
6
About These Installation Instructions
7
Typical System Layout
8
One Direct-Connected Heating Circuit Without Mixing Valve
8
Opening the Control
9
Overview
10
Control PCB
10
Front Panel
11
Summer Mode Switch
11
Override Switch
11
Power Switch
11
Routing Cables
12
Power Supply
12
Burner Connection
13
Terminal Codes
13
Room Thermostat Connection
14
Boiler/Space Heater Pump Connection
14
Boiler Sensor Connection
14
Installation of the Boiler Sensor
14
Electrical Connections
14
DHW Pump Connection
15
DHW Sensor Connection
15
Alarm Output
15
Outdoor Temperature Sensor Installation
16
Fixed High Limit
17
Adjustment to 100 C for Side Scales
17
Adjustable High Limit
18
Altering the Indoor/Outdoor Control Settings Internal
19
Factory Settings
19
Slope Adjustment
19
Warm Weather Shut-Down Adjustment
20
Start-Up
21
After Installation
21
Checklist
21
Service Binder
21
Start-Up Instructions
21
Switches
22
Front Panel Switches
22
Dial Switches
22
DIP Switches
23
Boiler Pump Post Purge
23
Boiler Pump Continuous Operation
23
Minimum Boiler Water Temperature Protection
23
Opentherm Thermostat Enable
23
Internal Outdoor Reset Function
23
Auxiliary Contact Function(A1)
23
DHW Pump Post Purge Timer
23
DHW Pump Post Purge Timer Delay
23
DHW Boiler Temperature Function
23
Pump Start-Up Operation
25
Boiler Pump Sequence
25
DHW Pump Sequence
25
Alternate Control Function
26
A1 Auxiliary Input - Heat Demand
26
A1 Auxiliary Input - 0-10VDC
26
Diagnostics
27
Failure, Cause, Correction
27
Test Points
28
120V Power Flow
28
Dial Switch
29
Front Panel Leds
29
Temperature Sensors
29
Outdoor Temperature Sensor Resistance Chart
29
Boiler and DHW Temperature Sensor Resistance Chart
29
Testing the FHL
30
Flow Chart
31
Replacement Components
32
Fuse
32
Fixed High Limit
32
Adjustable High Limit
32
Parts List
33
Ordering Replacement Parts
33
Parts
33
Wiring Diagram
34
Technical Data
35
Protocol
35
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4
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Viessmann KW10A Specifications
General
Category
Control Unit
Brand
Viessmann
Model
KW10A
Power supply
230 V AC
Power consumption
5 W
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