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Date

Title

Reference

Summer 2009

DelValle Administration Building (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access for remote monitoring and control of system variables.

Provide BACnet Rooftop Unit controllers from American Auto-Matrix for unit control and monitoring.

Provide zone temerature control with limited user adjustment ranges and adjustment duration as well as provide the Facilities group  the interface to be in control for increased energy savings.

Provide control and monitoring of Heat Recovery Unit and associated damper control.

Provide monitoring and notification for fire alarm trouble contacts and building phase loss.

Provide light level monitoring for exterior security and parking lot lighting to increase control and energy savings.

Provide outdoor temperature and humidity monitoring.

Provide critical temperature alarming and notification to owners staff for quick response.

 

info@dacaustin.com

Spring 2009

919 Congress (DDC Upgrade)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access for remote monitoring and control of system variables to existing BACnet system.

Provide and add programming and sequence of operation for variable frequency motor drives on all single zone air handlers for the building HVAC control.

Develop and integrate graphic displays and chiller optimization control with facility managements input stressing simplicity in logic.

Provide commissioning of existing pneumatic DDC interface control features like chilled water valve control and outdoor air damper operation.

Provide critical temperature alarming and notification to owners staff for quick response.

Develop after hours override application with integration to existing access card reader system for pre-assigned HVAC duration by floor with associated badge swipe.

info@dacaustin.com

Spring 2009

DelValle Transportation Center (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access for remote monitoring and control of system variables.

Provide control and monitoring of split system air conditioning units and gas  heat with the American Auto-Matrix line of BACnet controllers.

Provide zone temerature control with limited user adjustment ranges and adjustment duration as well as provide the Facilities group  the interface to be in control for increased energy savings.

Provide control and monitoring of bay area exhaust fans and overhead gas heaters.

Provide control and monitoring of conditioned outdoor make up air handler.

Provide monitoring and notification for fire alarm trouble contacts and building phase loss.

Provide light level monitoring for exterior security and parking lot lighting to increase control and energy savings.

Provide outdoor temperature and humidity monitoring.

Provide critical space temperature alarming and notification to owners staff for quick response.

info@dacaustin.com

Spring 2009

Region XIII  (Upgrade Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access.

Edit existing front end graphics to meet customers needs and expectations.

Altered programming sequence of opeation for increased efficiency.

Provided American Auto-Matrix BACnet controllers to provide interface with chiller control interface addition allowing for chilled water temperature reset control for increased efficiency and energy savings.

Adding variable frequency drive for building exhaust fan to increase energy savings and building pressure control during outdoor economizer cycles.

info@dacaustin.com

Winter 2008

UFCU BenWhite (Plan and Spec)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access for remote monitoring and control of system variables.

Provide control and monitoring of split system 2 speed high efficiency heat pumps witht the American Auto-Matrix line of BACnet controllers.

Provide control and monitoring of conditioned outdoor make up air handler.

Provide indoor and outdoor humidity and temperature monitoring for building control strategy and energy savings as well as comfort control.

Provide critical space temperature alarming and notification to owners staff for quick response.

info@dacaustin.com

Fall 2008

Southpark One (Upgrade Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide replacement of existing air handler controllers with the American Auto-Matrix line of BACnet controllers using the NB-GPC2.

Edit existing front end graphics with additional control strategy points for increased building operator control and management for energy savings adjustments.

Altered programming sequence of opeation following the replacement of the building cooling tower for increased efficiency.

Provided monitoring of cooling tower overflow for conservation.

info@dacaustin.com

June 2008

UFCU Steck (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access.

Design and provide custom web graphic user interface for monitoring and system adjustments including scheduling control on or off site.

Develope intuitive floor plan graphics for point and click monitoring or navigation of color coded Rooftop unit  vertical building zones.

Provide digital controllers for project point control.

Retrofit 6 rooftop package units with Trane Generic BAS control boards.

Provide and install 6 NB-V3Tb Bypass controllers for rooftop package control and discharge bypass damper control based on monitored duct pressure.

Retrofit existing VVT zone control dampers with custom fabricated shaft adapters.

Provide and retrofit zone dampers with NB-VAVtf controllers.

Retrofit existing zone thermostats with Digital display

Provide outside air temperature and humidity readings for seasonal lockout of heating or cooling stages of rooftop package units.

Provide various temperature monitoring points of critical areas for alarming on conditions out of expected range.

info@dacaustin.com

February 2008

Atrium Office (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access.

Design and provide custom web graphic user interface for monitoring and system adjustments including scheduling control on or off site.

Provide digital controllers for project point control.

Retrofit 150 various model vavs with NB-VAVtf integrated digital controllers including live feedback for damper position.

Retrofit existing pneumatic thermostats with Digital display

BACnet Interface with 3 Carrier Air Cooled Chillers.

Provide start stop and status of chillers, chilled water pumps, air handlers, exhaust fans and zone vavs.

Provide staging and lead lag control of chillers and chilled water pumps.

Provide and control four 50 HP variable frequency drives for East and West Air Handlers. Provide Static Pressure sensors for control of VFD frequency response to maintain adequate duct pressures.

Retrofit all pneumatic return air, outside air, and relief air damper actuators with analog actuators for digital control.  Provide building pressure sensor for monitoring relief damper needs during economizer operation.

Provide monitoring and control of  cold deck temperatures and retrofit pneumatic air handler chilled water valves with analog actuators for digital control.

Provide adjustable and automatic temperature control of air handler supply temperatures for cold deck reset.

Provide outdoor light level monitoring for interior and exterior building lighting points of control.

Provide control of fountain pumps and filter pumps including fountain level control.

Provide monitoring of existing card access relay system for after hours tenant usage of HVAC.

info@dacaustin.com

Aug 2007

Crossings (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access.

Provide digital controllers for project point control.

Retrofit 64 vavs with Pneumatic Zone Control through digital points.

Interface with 2 existing McQuay centrifugal chillers.

Provide start stop and status of chillers, chilled water pumps, condenser water pumps, cooling tower fans and bypass valve control.

Provide staging and lead lag control of chillers.

Monitor and control dual motor output variable frequency drives for East and West Air Handlers.

Retrofit all pneumatic controls in central plant with digital control points.

Provide monitoring and control of hot water pump and heating boiler.

Provide digital control of hot deck and cold deck valves. 

Provide adjustable and automatic temperature control of air handler supply temperatures.

Digitally control economizer damper operation and minimum outside air dampers.

info@dacaustin.com

June 2007

Central Christian Church  (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Provide local area controller with embedded web access.

Provide digital controllers for project point control.

Retrofit 3 classroom and administration air handlers with full digital control.

Provide digital thermostats for occupied adjustments.

Provide scheduling and graphical interface.

Provide full temperature control of two pipe system with intuitive building summer winter changeover operation.

Provide electronic changeover valves for summer winter changeover of two pipe system.

Provide start stop and status of chiller, loop pumps, boiler and sanctuary fan coil units and air handlers.

Retrofit all pneumatic control valves in central plant, classroom and administration with digital control points.

Provide monitoring and control of air cooled chiller and boiler.

Provide adjustable and automatic temperature control of air handler supply temperatures.  

Digitally control outside air dampers.

info@dacaustin.com

March 2007

Chase Bank Building (DDC Retrofit)

Reference by Request

PreviousProject

Brief Project Outline:

Tower Side:

Provide local area controller with embedded web access.

Provide intuitive graphic floor plans for internet access and control.

Provide digital controllers for project point control.

Retrofit 80 vavs with digital controllers and thermostats.

Interface with 2 existing air cooled chillers.

Provide start stop and status of chillers and chilled water pumps.

Provide isolation valves on tower chillers for energy savings.

Provide staging and lead lag control of chillers.

Monitor and control air handler chilled water valves for maintaining necessary supply air temperatures as required by building feedback.

Provide, install, monitor and control variable frequency drives for two 50hp Tower Air Handlers.

Monitor and maintain duct static pressure control.

Provide scheduling for all building HVAC equipment.

Provide, monitor and control building Co2 levels with digital control of outdoor air damper.

Provide full digital control of atrium air handler and electric duct heat staging.

Provide monitoring of control air pressure for control of existing pneumatic chilled water valves.

Provide monitoring of sump pump operation and alarms.

Provide control and monitoring of building exhaust fans. 

Bank Side:

Provide digital control and monitoring of 4 bank air handlers.

Provide digital control and monitoring of 18 duct reheat zones with digital space temperature thermostats.

Provide and monitor building Co2 levels for digital control of pneumatic outside air dampers.

info@dacaustin.com

Oct 2006

Las Cimas Office ( DDC Retrofit)

Reference by Request

Top

Brief Project Outline:

Merge control system with existing web based access by owners.

Provide intuitive floor plans for monitoring and adjusting space temperatures.

Retrofit 118 existing VAVs with digital controllers and space thermostats.

Interface with 6 existing McQuay package water cooled DX cooling units with variable speed fans for digital control and monitoring.

Retrofit control of closed loop cooling tower.  Monitor and control staging of fans for loop temperature control.

Monitor and control lead/lag sequence of control loop pumps and cooling tower fans.

Install variable frequency drives on outdoor air fans.

Retrofit existing fresh air dampers with analog controlled actuators.

Monitor and control duct static pressures.

Monitor and control outside air dampers to maintain desired space Co2 levels.

info@dacaustin.com

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Page last updated Oct 26th, 2009