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WB2B 80
Viessmann WB2B 80 User Manual
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5685 827 - 14 04/2020
Installation Instructions
Vitodens 200-W, B2HA
Models 80 to 100, 285 to 352
Wall-mounted, gas-fired condensing boiler
For operation with natural gas and liquid propane gas
Heating input: 71 to 352 MBH
20
to
103
kW
VITODENS
r
200-W
Read and save these instructions
for future reference.
Product may not be exactly as shown
IMPORTANT
H
2
Table of Contents
Safety
2
Safety, Installation and Warranty Requirements
2
Product Documentation
2
Warranty
2
Licensed Professional Heating Contractor
2
Contaminated Air
2
Advice to Owner
2
Carbon Monoxide
2
Fresh Air
2
Equipment Venting
2
About These Installation Instructions
3
Table of Contents
4
General Information
6
Important Regulatory and Installation Requirements
6
Codes
6
Instructing the System User
6
Initial Start-Up
6
Working on the Equipment
6
Technical Literature
6
For Installations on the Commonwealth of Massachusetts
7
CSD-1 Field Testing of High Limit Switches
7
Applicability
8
Product Information
8
Multi Boiler System
8
Mechanical Room
9
Set-Up
10
Before Set-Up
10
Minimum Clearances
10
Recommended Minimum Service Clearances
10
Preparing the Connections
11
Wall Mounting
13
Fitting the Wall Mounting Bracket
13
Installing the Wall Mounting Bracket
13
Installation of Mounting Bracket on Brick/Concrete Wall
13
Boiler Mounting Bracket
14
Installation on Wood Studs
14
Installation on Metal Studs
14
Frame Mounting
16
Models B2HA 80 to 100, 285 to 352 Frame Mounting
17
Connections
18
Connecting Power
18
Boiler Venting
18
Proper Piping Practice
18
Gas Shut-Off Valve Connection
18
Gas Connection and Piping
19
Gas Piping Pressure Test
20
Heating Water Connections
20
DHW Storage Tank Information
21
Making the DHW Connections
21
Accessing the Control Unit Connections
22
Routing the Connecting Cables
24
Connecting DHW Sensor
25
Setting Altitude Parameters
25
Control Base
26
External Accessory Connection Box
27
Condensate Connection
28
Safety Connections
29
Installing Boiler Safety Devices
29
Low Water Cut-Off
30
Waterside Flow
30
Waterside Flow (Primary Circuit)
30
Installation Examples
32
General
32
Clearances
32
System Layout 1-10
33
Alternative DHW Connection
43
Boiler in Heating/Cooling
44
Boiler in Heating/Cooling Application
44
Boiler with Low Water Cut-Off
45
Boiler with Low Water Cut-Off (Remote-Mounted Field Supplied)
45
Venting Connection
45
Control Connections
46
Electrical Connections
46
Power Supply Connection of Accessories
46
Connection of Accessories
46
Overview of Electrical Connections, Models B2HA 80 to 100, 285 to 352
47
Accessing the X3 Plug
49
Connecting the Low-Loss Header Sensor
49
Connecting the Outdoor Temperature Sensor
50
External 0-10 Volt Signal Connection
51
Connecting a 24VAC Thermostat
52
Thermostat Connection
53
Pump Connection
54
LON Module
55
Installing the LON Module to the Boiler Control Board
55
Connecting the LON Module Cable
55
Accessory Kit
56
Accessory Kit Connections for Heating Circuit with Mixing Valve
56
Closing the Control Unit
56
Closing the Control Cover
56
Closing the External Accessory Connection Box
57
Reinstalling the Front Enclosure Panel
58
Instructing the System User
58
Additional Information
59
Installation Fittings
59
Technical Data
60
Lighting and Operating Instructions
62
4
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Viessmann WB2B 80 Specifications
General
Brand
Viessmann
Model
WB2B 80
Category
Industrial Equipment
Language
English
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