A. O. Smith VF1500 User Manual

Boiler/Building Management Interface (BMI) For Hydronic and Domestic Hot Water Heating Boilers

FEATURES

NEW BOILER/BUILDING MANAGEMENT INTERFACE (BMI) - Provides

connections for energy management systems and/or boiler sequencing controls and

allows these systems to control the firing rate of all Genesis and VF Boiler models.

WORKS WITH GENESIS STAGE FIRED MODELS AND MODULATING VF BOILER MODELS -

systems or boiler sequencers to control the stage firing of 2, 3, and 4 stage Genesis

Boilers. When used with modulating VF Boilers the BMI accepts a 0 to 10 volt signal

from energy management systems or boiler sequencers for a fully modulating

system with optimum temperature control and maximum system efficiency.

PROVIDES SMOOTH SYSTEM OPERATION AND PREVENTS BOILER SHORT CYCLING

systems and/or boiler sequencing controls are used to control the firing rate to

match the heat demand of the facility. By providing access to the firing rate of

the boiler, the energy management systems and/or boiler sequencing controls can

better control the system temperature which helps to prevent boiler short cycling

and provides smoother overall system operation.

Note - Can be ordered with the boiler and factory installed or ordered as a kit for

field upgrade.

Provides contacts and allows energy management

- The BMI is recommended wherever energy management

A. O. Smith

Part

# 9007866005

RECOMMENDED FOR USE WITH A. O. SMITH PROVIDED TEKMAR CONTROLS



9005409105 - tekmar 274 Control - Can manage 4 - on/off boilers, 2 - 2-stage boilers, 1 - 3-stage boilers, or 1 - 4-Stage boiler (Has set point for domestic hot water and outdoor reset for hydronic heating systems)



9005408105 - tekmar 268 Control - Can manage 9 - on/off boilers, 4 - 2-stage boilers, 3 - 3-stage boilers, or 2 - 4-Stage boilers (Has set point for domestic hot water and outdoor reset for hydronic heating systems)



9007563005 - tekmar 275 Control - Can manage 1 to 4 modulating boilers with 0 to 10 Volt Signal (Has set point for domestic hot water and outdoor reset for hydronic heating systems)

Please note that the above listed tekmar controls can all be used for both hydronic heating

and/or domestic hot water heating systems. All three controls include a remote 1/2” tank

temperature probe well to be installed in the hot water storage tank or hydronic heating

return loop for optimum temperature sensing.

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Boiler/Building Management Interface (BMI) For Hydronic and Domestic Hot Water Heating Boilers

Factory Mounting Location

VF 500, 750, 1000

5.5"

12"

1.5"

2.25"

VF 1500 and 2000

6.75"

1.5"

Genesis 300 to 750

Genesis 1000 to 2500

For Technical Information and Automated Fax Service, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

July 2011R

www.hotwater.com

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