Integration of Controls

Transcription

1 Integration of Controls Rick Aeder Glumac Patty Anderson McKinstry

2 AIA Quality Assurance Learning Objectives 1. Provide an understanding of how expanding the utilization and function of the Building Automation System, the commissioning process can maximize a facilities energy savings and operating quality for years into the future. 2. Best practices to support tomorrow s intelligent design methods, advanced technologies, and the associated benefits of these systems. 3. Highlight the challenges Owner s face with building and operating green and sustainable buildings. And, how the commissioning process is interrelated will be discussed including how the Intelligent Design methods and technologies support commissioning as well as what specific concerns to be aware of for integrated building designs and systems.

3 Zero Defects

4 Table of Contents Part 1 of Session Rick Aeder Zero Defects DDC Enhanced Weather Forecast Global VAV testing Energy Consumption Alarming Balance Valves Pressure Independent Valve control w/ standard valves Part 2 of Session Patty Anderson Continuing the Discussion into the Future

5 Cx / Coordination Eliminate Retest at no cost. Limit meetings, no issue log Review, test and enhance Search for Simplicity Work the Process Team Profits

6 DDC and Natural Ventilation Consideration Limited Recovery Weather Anticipation 90+% success Weather Forecast 98% success

7 Global VAV Records Test: - Set AHU SAT setpoint to 55 - Command all VAV to min. airflow (record SF hz.) - Close reheat valves (maintain heating pump operation). - Record ea. VAV CFM. - Record SAT at each VAV

8 Global VAV Records OSAT = 50 deg VAV Log - dated AHU-7 Min Hz - 37 SAT= 55 VAV number VAV CFM DAT Deviation TU TU TU TU TU TU TU TU TU TU

9 Energy Consumption Alarming DDC Monitor and Control: - Build a Base-line, learn your building. - What are the conditions when the AHU attains full speed - How often and when do the control valves go full open? - Floating alarm limits for SAT based on OSA & Valve pos. - Max opening required of valves?

10 Balance Valves Sequence Set balance valve full open. Command open control valve until design criteria is met (temperature or flow). Adjust balance valve for noise/cavitation or isolated issues.

11 Pressure Independent Valve Control Differential Pressure Transmitter Location

12 Pressure Independent Valve Control Branch-Line Pressure Control

13 Pressure Independent Valve Control VAV Box Valve Sizing

14 Continuing the discussion into the Future.. Discussion topics Where We Are Today Transformation of Commissioning Best Practices Process

15 Where We Are Today.. Commissioning of Traditional Systems Mechanical HVAC Equipment DDC Controls Electrical Switchgear, Major disconnects Backup Generators and UPS

16 Today s Building Technologies Data Network Data Cente r Lighting Supervisor Video Matrix Switch Access Controller I HVAC Control Panel DATA Lighting Video ACCESS HVAC FIRE Source: Panduit

17 Suggestion: environment/sustainability Hey look someone s finally coming, we ve been on for hours My lights are on when no one is here

18 Transformation of Commissioning What s driving the change Owner Frustrations LEED, Energy Star Continuous Commissioning Green / High Performance Buildings Smart Buildings / Smart Grid Demand Response Interoperability of Technologies

19 Best Practices Process pre-design Move the finish line to make sure the Owner s Goals are satisfied design construction certification STOP building specs satisfied? GO until building works RIGHT Stable, Sustainable & Optimized Operations Commissioning Commitment Traditional finish line for construction projects FINISH LINE Introduce Continuous Commissioning

20 Continuous / Smart Commissioning One time or Periodic Commissioning Introduction of technologies is enabling Smart Commissioning Real-time commissioning using sophisticated, rules based software Currently seen in the Retail market

21 Green / High Performance Buildings THE COMMONALITY OF SMART AND GREEN BUILDINGS GREEN BUILDINGS Sustainable Sites Water Efficiency Energy and Atmosphere Materials and Resources Indoor Environmental Quality Innovation and Design Process Optimize Energy Performance Additional Commissioning Measurement and Verification Carbon Dioxide (CO2) Monitoring Controllability of Systems Performance Monitoring Systems Innovation in Design Data Network VOIP Video Distribution A/V Systems Video Surveillance Access Control HVAC Control Power Management Programmable Lighting Control Facilities Management Cabling Infrastructure Wireless Systems SMART BUILDINGS * Caba Homes & Buildings; Spring 2008 Volume 5, Number 1 High performance buildings need not be green or smart, but must be both.

22 Smart Buildings. Smart Grid Smart Grid Smart Buildings

23 Demand Response Auto Demand Response Voluntary reduction of electric demand at the end-user level in response to high peak demand periods. Pilot Program in Pacific NW 8-10 facility participants - Implement Winter peak reducing strategies - Goal to reduce Peak by 10% Challenges - Found programmed strategies that would have started the events without the demand response signal - Lack of understanding of Auto Demand Response in PNW

24 Interoperability of Technologies Interoperability Testing Series of tests proving protocol functions used in the project Protocol Analyzer Examines the protocol service and data message packets Identifies if there is incorrect usage of the protocol between products Use during Functional Testing to ensure the protocols are being properly implemented.

25 Interoperability of Technologies Commissioning Issues Building Automation Systems (BAS) Final databases need to be provided to System Integrator Commission BAS systems prior to System Integration testing Data Center - Case Study - Integration to over eight sub systems - Electrical Infrastructure system was not fully commissioned at time of occupancy and owner acceptance - UPS alarmed that all 4 units had no bypass available - Error was caught and corrected due to the 3 rd party integration

26 Interoperability of Technologies Advanced Technologies Systems of the past will re-appear Personnel RFID systems Public safety systems Personal rapid transit Occupant Safety & Alert Notification Systems Dust sensors Occupancy counters Intelligent middleware Future systems are already here

27 Questions

28 Rick Aeder (503) Thank-you Patty Anderson (206)