Viessmann B2HA 80

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Vitodens 200-W B2HA 80 to 100, 285 to 352 Installation

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Safety2
Safety, Installation and Warranty Requirements2
Product Documentation2
Warranty2
Licensed Professional Heating Contractor2
Contaminated Air2
Advice to Owner2
Carbon Monoxide2
Fresh Air2
Equipment Venting2
About These Installation Instructions3
Table of Contents4
General Information6
Important Regulatory and Installation Requirements6
Codes6
Instructing the System User6
Initial Start-Up6
Working on the Equipment6
Technical Literature6
For Installations on the Commonwealth of Massachusetts7
CSD-1 Field Testing of High Limit Switches7
Applicability8
Product Information8
Multi Boiler System8
Mechanical Room9
Set-Up10
Before Set-Up10
Minimum Clearances10
Recommended Minimum Service Clearances10
Preparing the Connections11
Wall Mounting13
Fitting the Wall Mounting Bracket13
Installing the Wall Mounting Bracket13
Installation of Mounting Bracket on Brick/Concrete Wall13
Boiler Mounting Bracket14
Installation on Wood Studs14
Installation on Metal Studs14
Frame Mounting16
Models B2HA 80 to 100, 285 to 352 Frame Mounting17
Connections18
Connecting Power18
Boiler Venting18
Proper Piping Practice18
Gas Shut-Off Valve Connection18
Gas Connection and Piping19
Gas Piping Pressure Test20
Heating Water Connections20
DHW Storage Tank Information21
Making the DHW Connections21
Accessing the Control Unit Connections22
Routing the Connecting Cables24
Connecting DHW Sensor25
Setting Altitude Parameters25
Control Base26
External Accessory Connection Box27
Condensate Connection28
Safety Connections29
Installing Boiler Safety Devices29
Low Water Cut-Off30
Waterside Flow30
Waterside Flow (Primary Circuit)30
Installation Examples32
General32
Clearances32
System Layout 1-1033
Alternative DHW Connection43
Boiler in Heating/Cooling44
Boiler in Heating/Cooling Application44
Boiler with Low Water Cut-Off45
Boiler with Low Water Cut-Off (Remote-Mounted Field Supplied)45
Venting Connection45
Control Connections46
Electrical Connections46
Power Supply Connection of Accessories46
Connection of Accessories46
Overview of Electrical Connections, Models B2HA 80 to 100, 285 to 35247
Accessing the X3 Plug49
Connecting the Low-Loss Header Sensor49
Connecting the Outdoor Temperature Sensor50
External 0-10 Volt Signal Connection51
Connecting a 24VAC Thermostat52
Thermostat Connection53
Pump Connection54
LON Module55
Installing the LON Module to the Boiler Control Board55
Connecting the LON Module Cable55
Accessory Kit56
Accessory Kit Connections for Heating Circuit with Mixing Valve56
Closing the Control Unit56
Closing the Control Cover56
Closing the External Accessory Connection Box57
Reinstalling the Front Enclosure Panel58
Instructing the System User58
Additional Information59
Installation Fittings59
Technical Data60
Lighting and Operating Instructions62

Viessmann B2HA 80 - Page 64

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