Building Automation Guide for Therma-Fuser™ Systems · operational costs is a significant...

Building Automation Guide for Therma-Fuser™ Systems

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Option 1: Therma-Fuser™ stand alonediffusersThis simple configuration provides the comfort and energy savings of individual temperature control with easy adaptibility to office changes, no maintenance VAV terminals and low installation cost due to no diffuser wiring. The BAS monitors and controls only the parts of the system that require periodic maintenance.

Option 2: Therma-Fuser™ stand alone diffusers with Room Temperature SensorsMonitor room air temperatures with the BAS. The BAS can read an analog room temperature signal from a sensor installed in each diffuser.

Option 3: Therma-Fuser™ stand alone diffusers with Wall Adjusters Adjust room temperature set point with the BAS. The BAS can read and reset the room temperature setpoint of each diffuser using analog signals from an Acutherm Wall Adjuster. The Wall Adjuster may be installed on the diffuser or on the wall and may be either wireless or wired to the diffuser.

Option 4: Therma-Fuser™ stand alone diffusers with Room Temperature Sensors and Wall Adjusters A combination of Options 2 and 3, this option monitors room air temperatures and adjusts the setpoint with the BAS. The BAS can read an analog room temperature signal from a sensor installed in each diffuser and can read and reset the room temperature setpoint of each diffuser using analog signals from an Acutherm Wall Adjuster.

Option 5: Combination of Therma-Fuser™ stand alone diffusers with Therma-Fuser™ DDC interoperable diffusersThis option offers complete BAS digital input and output on selected diffusers and the simplicity of no wiring to the others. Key spaces are monitored and controlled by the BAS. Other spaces have the benefit of simplicity and low installation cost due to no diffuser wiring.

Option 6: Therma-Fuser™ DDC Interoperable diffusers This option offers complete BAS digital input and output. Each diffuser has the ability to supply room temperature, airflow and supply air temperature and receive signals for room temperature setpoint, minimum airflow setpoint, maximum airflow setpoint, override open, override closed, CO2 override and more. Digital signals can be either BACnet or LonWorks.

BUILDING AUTOMATION OPTIONS FOR THERMA-FUSER™ SYSTEMSAs energy costs continue to rise, the management of energy while balancing tenant comfort and operational costs is a significant challenge for commercial building Owners and Managers. A Building Automation System (BAS) is an option that provides monitoring of entire building systems with single source control and troubleshooting.

Acutherm’s Therma-Fuser™ VAV System is designed to work cooperatively with the wide range of BAS options available. Whether you're looking for simple individual temperature control, requiring no energy for operation, or full-scale networking for system scheduling, monitoring, reporting, troubleshooting and more, this guide will help you determine what is best for your building needs and budget. Six basic options are compared using the quick chart on the following page, then each option is described in more detail throughout the guide. A Pressure Independence Module (PIM) is also described.

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QUICK CHART FOR THERMA-FUSER™ SYSTEM BUILDING AUTOMATION OPTIONS

Features

Ë Comfort - Individual temperature control ü ü ü ü ü üË Comfort - Superior

air distribution ü ü ü ü ü üË Energy - Energy

saving system ü ü ü ü ü üË Sustainability -

Adaptable system ü ü ü ü ü üË Sustainability - No

diffuser maintenance ü1 ü1 ü1 ü1 ü1 üË Simplicity - No

diffuser wiring üË Simplicity - BAS

only monitors parts of system requiring periodic maintenance

üË BAS monitors room

air temperature ü ü ü2,4 üË BAS monitors

and adjusts room temperature setpoints

ü ü ü3,4 üË BAS monitors

diffuser supply air temperature ü4 üË BAS monitors

diffuser supply air volume ü4 üË Other BAS functions

(see description) ü4 üË Installed cost $ $$ $$ $$$ $$$ $$$$NOTES:1. 10-year warranty on Therma-Fuser™ stand alone diffusers. (Not applicable to diffuser options and accessories.)2. Available on Therma-Fuser stand alone diffusers with options 2 and 4.3. Available on Therma-Fuser stand alone diffusers with options 3 and 4.4. Only on Therma-Fuser DDC diffusers.

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BUILDING AUTOMATION OPTIONS FOR THERMA-FUSER™ SYSTEMS4

BUILDING AUTOMATION OPTIONS FOR THERMA-FUSER™ SYSTEMS

Supply AirTemperature Sensor

Sta�c Pressure Sensor

Stand Alone Diffusers

BAS Computer

Programmable Controller

Power wiring not shown.

Achieve all the benefits of Therma-Fuser VAV and only use the BAS to monitor the parts of the system that need periodic maintenance. This simple configuration provides the comfort and energy savings of individual temperature control, easy adaptability to office changes, and no maintenance VAV terminals along with simplicity and low installation cost due to no diffuser wiring. The BAS monitors and controls only the portions of the VAV system requiring maintenance including the fan, VSD, coils and filters plus other HVAC equipment such as the chiller, boiler, pumps, cooling tower, etc...

Option 1: Therma-Fuser™ stand alone diffusers

FeaturesË Comfort - Individual temperature control üË Comfort - Superior air distribution üË Energy - Energy saving system üË Sustainability - Adaptable system üË Sustainability - No diffuser maintenance ü1

Ë Simplicity - No diffuser wiring üË Simplicity - BAS only monitors parts of system

requiring periodic maintenance üNOTES:1. 10-year warranty on Therma-Fuser™ stand alone diffusers.

(Not applicable to diffuser options and accessories.)

Possible BAS Inputs to VAV System

Possible VAV System Outputs to BAS

Occupancy ScheduleEmergency OverrideStatic Pressure SetpointDischarge Air Cooling SetpointDischarge Air Heating SetpointMinimum Outdoor Air Setpoint

Discharge Air TemperatureStatic Pressure ModeChilled Water TemperatureHot Water TemperatureSupply Fan CapacityExhaust Fan CapacityReturn Air CapacityEconomizer EnabledOutdoor Air TemperatureOutdoor Air Damper PositionOutdoor AirflowReturn Air TemperatureMixed Air TemperatureSpace TemperatureFilter Differential Pressure

Text in italics are VAV system possibilities. BAS inputs and outputs are available from other HVAC equipment such as the chiller, boiler, pumps, cooling tower, etc...

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Option 2: Therma-Fuser™ stand alone diffusers ËRoom Temperature SensorsAchieve benefits of Therma-Fuser VAV and monitor room air temperatures with the BAS. The BAS can read an analog room temperature signal from a sensor installed in each diffuser. The BAS also monitors and controls the portions of the VAV system requiring periodic maintenance. This approach provides the Therma-Fuser VAV advantages of comfort and energy savings from individual temperature control, easy adaptability to office changes, and no maintenance VAV terminals.



Stand Alone Diffuserswith Room Temperature Sensors

BAS Computer






Ë BAS monitors room air temperature üNOTES:1. 10-year warranty on Therma-Fuser™ stand alone diffusers.





Room Temperatures



WirelessWall Adjuster

DigitalWall Adjusters

ADJ-W

ADJ-D



Stand Alone Diffusersand Wired or Wireless Wall Adjusters

BAS Computer








Ë BAS monitors and adjusts room temperature setpoints üNOTES:1. 10-year warranty on Therma-Fuser™ stand alone diffusers.




Room Temperature Setpoints





Option 3: Therma-Fuser™ stand alone diffusers ËWall Adjusters

Achieve benefits of Therma-Fuser VAV and make room temperature set point changes with the BAS. The BAS can read and reset the room temperature setpoint of each diffuser using analog signals from an Acutherm Wall Adjuster. The Wall Adjuster may be installed on the diffuser or on the wall and may be either wireless or wired to the diffuser. The BAS also monitors and controls the portions of the VAV system requiring periodic maintenance. This approach provides the Therma-Fuser VAV advantages of comfort and energy savings from individual temperature control, easy adaptability to office changes, and no maintenance VAV terminals.

WirelessWall Adjuster

DigitalWall Adjusters

ADJ-W

ADJ-D



Stand Alone Diffuserswith Room Temperature Sensorsand Wired or Wireless Wall Adjusters

BAS Computer





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Ë BAS monitors room air temperature üË BAS monitors and adjusts room temperature setpoints ü

1. 10-year warranty on Therma-Fuser™ stand alone diffusers. (Not applicable to diffuser options and accessories.)





Room Temperature Setpoints Room Temperatures



Achieve benefits of Therma-Fuser VAV and both monitor room air temperatures and make setpoint changes with the BAS. The BAS can read an analog room temperature signal from a sensor installed in each diffuser and can read and reset the room temperature setpoint of each diffuser using analog signals from an Acutherm Wall Adjuster. The BAS also monitors and controls the portions of the VAV system requiring periodic maintenance. This approach provides the Therma-Fuser VAV advantages of comfort and energy savings from individual temperature control, easy adaptability to office changes, and no maintenance VAV terminals.

Option 4: Therma-Fuser™ stand alone diffusers ËRoom Temperature Sensors and Wall Adjusters


Option 5: Combination of Therma-Fuser™ stand alone ËTherma-Fuser™ DDC interoperable diffusersAchieve benefits of Therma-Fuser VAV, complete digital input and output with the BAS on selected diffusers and the simplicity of no wiring to the others. Key spaces are monitored and controlled by the BAS. Other spaces have the benefit of simplicity and low installation cost due to no diffuser wiring. All spaces have the Therma-Fuser VAV advantages of comfort and energy savings from individual temperature control and easy adaptability to office changes. The BAS also monitors and controls the portions of the VAV system requiring periodic maintenance.



Stand AloneDiffuser

Stand AloneDiffuser

Stand AloneDiffuser

Stand AloneDiffuser

Stand AloneDiffuser

Stand AloneDiffuser

DDC Interoperable

DDC Interoperable

BAS Computer





Room Temperature Setpoints*Room Minimum Airflow Setpoints*Room Maximum Airflow Setpoints*Override Open*Override Closed*CO2 Override*


*Only for select rooms

Room Temperature Setpoints*Room Temperatures*Room Airflows*Room Supply Air Temperatures*


*Only for select rooms



Ë BAS monitors room air temperature ü2, 4

Ë BAS monitors and adjusts room temperature setpoints ü3, 4

Ë BAS monitors diffuser supply air temperature ü4

Ë BAS monitors diffuser supply air volume ü4

Ë Other BAS functions (see description) ü4

NOTES:1. 10-year warranty on Therma-Fuser™ stand alone diffusers.

(Not applicable to diffuser options and accessories.)2. Available on Therma-Fuser stand alone diffusers with options 2 and 4.3. Available on Therma-Fuser stand alone diffusers with options 3 and 4.4. Only on Therma-Fuser DDC diffusers.


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DDC Interoperable Diffusers

BAS Computer



Option 6: Therma-Fuser™ DDC interoperable diffusers

Achieve benefits of Therma-Fuser VAV and complete digital input and output with the BAS. Each diffuser has the ability to supply room temperature, airflow and supply air temperature and receive signals for room temperature setpoint, minimum airflow setpoint, maximum airflow setpoint, override open, override closed, CO2 override and more. Digital signals can be either BACnet or LonWorks. The BAS also monitors and controls the portions of the VAV system requiring periodic maintenance. This approach provides the Therma-Fuser VAV advantages of comfort and energy savings from individual temperature control and easy adaptability to office changes.

FeaturesË Comfort - Individual temperature control üË Comfort - Superior air distribution üË Energy - Energy saving system üË Sustainability - Adaptable system üË Sustainability - No diffuser maintenance üË BAS monitors room air temperature üË BAS monitors and adjusts room temperature setpoints üË BAS monitors diffuser supply air temperature üË BAS monitors diffuser supply air volume üË Other BAS functions (see description) ü



Room Temperature SetpointsRoom Minimum Airflow SetpointsRoom Maximum Airflow SetpointsOverride OpenOverride ClosedCO2 Override


Room Temperature SetpointsRoom TemperaturesRoom AirflowsRoom Supply Air Temperatures



Option for Pressure Independence Module (PIM):



BAS Computer



PIM

Sta�c Pressure Probe



BAS Computer


E-PIM

Sta�c Pressure Probe





Analog & Interoperable:

Static Pressure Setpoint

Override

Analog & Interoperable:

Static Pressure

Damper Position

ANALOG (PIM)

INTEROPERABLE (E-PIM)

Note: Diffusers can be Stand Alone or DDC Interoperable.

Note: Diffusers can be Stand Alone or DDC Interoperable.

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Should the air source operate at a higher static pressure level than suitable for quiet Therma-Fuser diffuser performance, static pressure control is required. The Acutherm PIM is ideal for Therma-Fuser diffusers to operate quietly at both full flow and turndown conditions. There are two ways to integrate to the BAS system; analog (PIM) and interoperable (E-PIM). Both offer static pressure control for zone or by-pass applications. The diagrams below show zone applications.

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Proven Building Automation Options

Comfort

With each Therma-Fuser™ VAV diffuser acting as an

individual VAV zone of control, every area of a building

can have separate, optimized temperature settings.

The individual occupant selects a personal comfort

setting and average temperature is maintained within

1½°F/0.9°C. Therma-Fuser™ VAV diffusers also provide

a constant discharge velocity with comfort benefits of

higher throws, no dumping, better room air movement

and uniform temperature distribution.

Experience

Since 1978 Acutherm’s thermally powered VAV

diffusers have been exceeding people’s individual

comfort requirements. Our dedication to innovation

began with the Acutherm Therma-Fuser™ VAV

diffuser and continues with our associated

products and accessories.

Square VAV Diffusers Round VAV Diffusers Linear VAV Diffusers Accessories Pressure Control Temperature control

ACuThERm PRODuCTS

Integration

Therma-Fuser™ VAV Systems offer a wide spectrum

of building integration options from stand-alone

diffusers that provide simple global temperature

changes, requiring no energy for operation, to full-scale

networking for system scheduling, monitoring, reporting

and more.

Energy Savings

Therma-Fuser™ VAV diffusers allow for all low-pressure,

low-energy system designs. As U.S. Green Building

Council members, Acutherm is proud to produce

energy efficient VAV diffusers that prevent over

cooling and over heating — producing 15%-47% energy savings when compared to other VAV

Systems.

© 2012 Acutherm FORM 010-112 REV 1201

ACUTHERM HEADqUARTERS 1766 Sabre Street Hayward CA 94545, USA Tel: +1 510 785 0510 Fax: +1 510 785 2517

AVAILABLE ONLINEAccess digital brochures, CAD files, performance data and more!

www.acutherm.com

CALL USTalk to our customization and specification experts

+1 800 544 1840

EMAIL SUPPORTSend us your questions and we’ll get you the answers you need.

[email protected]

For additional details on Therma-Fuser™ VAV system, Acutherm products or system design

please contact our Engineering Department directly at (510) 785-0510 or [email protected].

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