hvac ddc open systems hvac ddc open systems

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.