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HVAC DDC Open Systems
HVAC DDC Open HVAC DDC Open SystemsSystems
Frank Shadpour, P.E.SC Engineers, Inc.
Frank Shadpour, P.E.Frank Shadpour, P.E.
ASHRAE FellowASHRAE TC 1.4Past President - ASHRAE Instructor - UCSDUSC GraduateAuthor of “Fundamentals of HVAC DDC”
President of SC Engineers, Inc.
www.scengineers.netFrank@scengineers.net
Our Distinguished GuestsOur Distinguished GuestsOur Distinguished Guests
� Sara Page Rady Children’s Hospital
� James Page Amylin Pharmaceuticals
� Mike Tarantino Poway School District
� Jason Lawrence Advanced Media Works
HVACDDC.comHVACDDC.com
AgendaAgendaAgenda
� The Book Overview� DDC Open Systems� Global Commissioning� Online Training� Panel Discussion
� The Book Overview�� The Book OverviewThe Book Overview
� The Book Overview� DDC Open Systems� Global Commissioning� Online Training� Panel Discussion
The Book OverviewThe Book OverviewThe Book Overview
� A. The basics… 1,2,3�
� B. DDC Networking… 4,5,6
� C. Hybrid Systems… 7,8
� D. Control Components…9,10,11
� E. Practical Scenarios… 12,13,14,15
� F. Specifying DDC 16,17
� DDC Open Systems�� DDC Open SystemsDDC Open Systems
� The Book Overview� DDC Open Systems� Global Commissioning� Online Training� Panel Discussion
Chapter 4, 5 and 6.
The Big QuestionsThe Big QuestionsThe Big Questions
1. Can I use an Open DDC system for my new facility?
2. Can I use an Open DDC system for my new addition?
3. Can I upgrade my existing DDC system to Open?
4. Can I utilize open DCC system for commissioning?
The Big QuestionsThe Big QuestionsThe Big Questions
1. Can I use an Open DDC system for my new facility?
2. Can I use an Open DDC system for my new addition?
3. Can I upgrade my existing DDC system to Open?
4. Can I utilize Open DCC system for commissioning?
Evolution of BASEvolution of BASEvolution of BAS
OpenWeb Services2010’s
Open & Proprietary
Networking2000’s
ProprietaryASC’s1990’s
NoneGPC’s1980’s
ProtocolSystemHVAC DDC Evolution
Web Services are self-contained, modular
applications that can be run over the Internet and can be
integrated into other applications.
DDC - Open vs. ClosedDDC DDC -- Open vs. ClosedOpen vs. Closed
?BACnetNon-Proprietary
Well-knownManufactures
LonWorksProprietary
ClosedOpenType
A BACnet Solution ModelA BACnet Solution ModelA BACnet Solution Model
Native BACnet
Native BACnet
SOAP: Simple object Access protocol. A protocol that provides a standardized XML envelop for carrying application specific XML payloads.
BACnet BACnet BACnet
o BACnet Web-Services supersedes BACnet/IP
o BACnet/IP: Or BACnet 2001. Conveys messages between BACnet LAN via IP using a technique called Tunneling. It supersedes BACnet 95.
o PICS: Protocol Implementation Conformance Statement. The capabilities of any particular device that should accompany that device.
o BIBBs: BACnet Interoperability Building Blocks. Each BIBB states what BACnet feature must be implemented for client or server to achieve communication. B-ASC and B-AAC are standard BIBB replacements.
BACnet – ResourcesBACnet BACnet –– ResourcesResources
o ASHRAE SPC 135, http://www.bacnet.org/
o BTL BACnet Testing Laboratory, http://www.bacnetassociation.org/
o ASHRAE Guideline 13-2000,Specifying Direct Digital Control Systems
o oBIX Open Building Information Exchangehttp://www.obix.org/
o OASIS: Organization for the Advancement of Structured Information Standards http://www.oasis-open.org/home/index.php
What is oBIXWhat is oBIXWhat is oBIX
OASIS: Organization for the Advancement of Structured Information Standards
"Open Building Information Change"
� BACnet/IP: Or BACnet 2005. Conveys messages between BACnet LAN via IP using a technique called Tunneling. It supercedes BACnet 95.
� PICS: Protocol Implementation Conformance Statement. The capabilities of any particular device that should accompany that device.
� BIBBs: BACnet Interoperability Building Blocks. Each BIBB states what BACnet feature must be implemented for client or server to achieve communication. B-ASC and B-AAC are standard BIBB replacements.
A LonWorks Solution ModelA LonWorks Solution ModelA LonWorks Solution Model
LonTalk
LonTalk
LonTalk
A Router is intelligent hardware
that filters the passing of message
between two network segments.
LonWorks…LonWorksLonWorks……
LonWorks: is a family of hardware products developed by the Echelon Corporation
LonTalk: is the communication protocol for LonWorks networks. Similar to Ethernet LonTalk is CSMA. However, does not have CD.
LonMark: is a brand name and an association formed in 1994 to promote and support those manufacturers that produce LonWorks products
What is PLC?What is PLC?What is PLC?
PLCs are miniature industrial computers that contain hardware and software that is used to perform control functions. A PLC consists of two basic sections: the central processing unit (CPU) and the input/output interface system.)
The first PLC can be traced back to 1968 when Bedford Associates, a company in Bedford, MA, developed a device called a Modular Digital Controller for General Motors (GM). .
PLC, DDC or PAC ? PLC, DDC or PAC ? PLC, DDC or PAC ?
1. Real Time Operating System2. Industrial Use3. Rugged Mechanical Package4. Reliable5. Easy to expand6. Large Central Plants
1. General Purpose2. Easy Expansion3. Commercial Use4. Larger Memory Expansion5. Windows Application 6. Not as Reliable
1. Real Time Operating System2. Predefined Fixed Software3. Rugged Mechanical Package4. Limited Applications5. Simple control process6. No Motion Control
PACProgrammable Automation Controller
DDC/ PCDirect Digital Controller
PLCProgrammable Logic Controller
RS Logic 500 PLC National Instrument PLC Fandom RS Christmas Light PLC Ladder Logic HVAC DDC
� Global Commissioning �� Global Commissioning Global Commissioning
� The Book Overview� DDC Open Systems� Global Commissioning� Online Training� Panel Discussion
Using DDC as a Commissioning ToolUsing DDC as a Commissioning ToolUsing DDC as a Commissioning Tool
� Green Building Management� Preventive Maintenance� Trouble Shooting� What is beyond?
XXXXTraining VerificationStep 10
XXFunctional Performance TestStep 9
XXXStart up VerificationStep 8
XXDDC Cx VerificationStep 7
XXInstallation VerificationStep 6
XXShop Drawings VerificationStep 5
XXXProceduresStep 4
XXXBasis of Design VerificationStep 3
XXXXXScheduleStep 2
XXPlanStep 1
Post –Accept.
Accept.Const.designPre-designStep
Phase 5Phase 4Phase 3Phase 2Phase 1Phase
Commissioning Phases & StepsCommissioning Phases & StepsCommissioning Phases & Steps
Open Solution for energy EfficiencyOpen Solution for energy EfficiencyOpen Solution for energy Efficiency
Energy Efficiency Energy Efficiency Through Commissioning Through Commissioning Creates a Better WorldCreates a Better World52 & UpPlatinum
39-51Gold
33-38Silver
26-32Certified
Certification Level
� GREEN is Money… Money is GREEN!
� Building Automation System strategies can be applied to approximately 40% of the criteria of the U.S. Green Building Council’s Leadership in Energy & Environmental Design (LEEDTM).
� Online Training �� Online Training Online Training
� The Book Overview� DDC Open Systems� Global Commissioning� Online Training� Panel Discussion
LonWorks Lessons Learned…LonWorks Lessons LearnedLonWorks Lessons Learned……
LonMark Compatible DevicesLonMark Certified Devices
Generic interfacesLon Object list
Generic sequencesClear Sequence of Operation
Vender’s hooksGeneric open specification
Specify in two placesResponsibility for integration
Access only by one venderOwnership of tools and licenses
Specify only one methodFlexible Field bus architecture
Assume stand alone systemCoordinate with IS admin
Vender specific ArchitectureLon over IP backbone
General Definition of LonWorksDefine Interoperability Goals
Don’tsDo’s
BACnet - Lessons Learned…BACnet BACnet -- Lessons LearnedLessons Learned……
BACnet compatible devicesBLT certified devices
Generic interfacesBACnet object list
Generic sequencesClear Sequence of Operation
Vendor’s hooksGeneric open specification
Specify in two placesResponsibility for integration
Access only by one vendorOwnership of tools and licenses
Specify only one methodFlexible field bus architecture
Assume stand alone systemCoordinate with IS admin
Vendor specific architectureBACnet / IP backbone
General Definition of BACnetDefine Interoperability Goals
Don’tsDo’s
Specialized CertificateDesign and Control of HVAC Systems
Specialized CertificateSpecialized CertificateDesign and Control of HVAC SystemsDesign and Control of HVAC Systems
HVAC System Design . . . . . . . . . . . . .. . .April 2007
HVAC DDC Basics – Online. . . . . . . . . . . .June. 2007
HVAC Design Calculations. . . . . . . . . . . . .Sep. 2007
HVAC DDC Systems Design . . . . . . . . . . .. March 2008
HVAC DDC Networking . . . . . . . . . . . . .. . . June. 2008
http://onlinex.ucsd.edu/
� Panel Discussion �� Panel Discussion Panel Discussion
� The Book Overview� DDC Open Systems� Global Commissioning� Online Training� Panel Discussion
HVAC DDC Open Systems
HVAC DDC Open HVAC DDC Open SystemsSystems
Frank Shadpour, P.E.SC Engineers, Inc.