LightFair Seminar 22 May 8, 2003 8:30 AM. Owner - HOK Daryl Dalling - Dynalectric Pete Horton – The Watt Stopper Richard Miller – RNM Engineering Charles Knuffke – The Watt Stopper. DALI Installation: A Case Study. The Owner. Represented by: Rick Miller. One Bush Street.
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LightFair Seminar 22May 8, 2003 8:30 AM Owner - HOK Daryl Dalling - Dynalectric Pete Horton – The Watt Stopper Richard Miller – RNM Engineering Charles Knuffke – The Watt Stopper DALI Installation: A Case Study
The Owner Represented by: Rick Miller
One BushStreet Historic Landmark
Design Team • Interior designed by HOK • Structural designed by Middlebrook + Louie • Lighting designed by J.S.Nolan & Associates • MEP systemsdesign/built by the Contractor
Design Parameters • Economic Climate • Landmark Building • Concealed Spline Ceiling • 1 x 4 Parabolic Lighting Fixture • Landlord’s Tenant Design Requirements • LEED™ CI Prototype Certification
The Engineer By: Rick Miller
1 x 4 Parabolic Luminaire • 2-F40T12 over/under lamps, magnetic ballast, tandem wired, pre-fabricated wiring • Hello DALI ! • 1-F32T8 single lamp, DALI ballast • Power reduction from 92 watts to 35 watts
DALI Design Parameters • Decide DALI Bus to run with Lighting Circuit • Max loading of circuits based on lighting watts • Max DALI address per bus • DALI ballast and DALI controllers consume power • DALI power supply is limited to 250 ma • Actual power supply is 150 ma
LEED EA Credit 1.1 Reduce lighting power density to 30% below the standard, (2 points)
The Contractor By: Daryl Dalling
Design Build Guidelines • Specifications- Provide outline of minimum quality and expectations • Historical Requirements- Dictate a portion of the scope or design (ie. Cannot penetrate or deface existing surfaces) • Building Management Requirements- In this case we had specific fixture requirements, as well as set back restrictions, lamp colors, BMS and lighting control interface
(cont’d) Design Build Guidelines • Lighting Restrictions- Lighting (fluorescent vs. incandescent), especially in California can get tricky with Energy Conservation Act Title 24. Lighting budget also plays into lighting design • Lighting Control- Title 24 has minimum guidelines. Design criteria and use of space are also implemented
(cont’d) Design Build Guidelines • All Applicable Codes- This dictates wiring methods, egress, fire-life safety,etc. • Budget- Small budget, Fewer options
Process of Selecting Lighting Package • Package:Package is the keyword. Key resource is the Light Representatives • Design Criteria:Understanding Spec & Scope • Budget: Critical element is to match dollars with space requirements • Communication: Sales & marketing insure client understanding final package
Use of Space Conference Rooms Small Offices Large Open Areas Title 24(must be implemented) Building Management Interface Owner Design Criteria Base Bid Lighting Controls Criteria
Control Methods: Standard Lighting Control • Individual switching of office and open areas • LV Lighting Control Panel and Local Devices • Multi-Level Switching • Two Gang Devices/Two Ballast Fixtures • Dimming of a single room or fixture • Fluorescent Dimmers & Dimming Ballast (continued)
Control Methods: Standard Lighting Control • Dimming to a pre-set scene sequence • Full Grafik Eye System • Occupancy Sensors
Control Methods: DALI Lighting Control • Individual switching of office and open areas • via DALI • Multi-Level Switching – via DALI • Dimming of a single room or fixture – via DALI • Dimming to a pre-set scene sequence – via DALI • Occupancy Sensors – non DALI
Bringing the System Together • Fixture Package • Fixture Control • DALI Protocol • DALI Ballast - Coordinate with fixture manufacture • Electrician - Willing electrician; Education of the simple install • DALI Magic - DALI compatible switching, interface solutions (non DALI fixtures), and startup & commissioning)
PRO-Electrical Quotes • More forgiving(all switching options are always available, whereas conventional switching requires multiple switch legs) • Smaller pipe and fewer wires to pull • Layout is simple • Changes or added switches are easy • Quicker lighting control installation
(cont’d) PRO Electrical Quotes • Change order friendly (owner & contractor) • Non-electrical programming (software based) • Ballast self-addressing (no dip switches) • Troubleshoot wiring easier (fewer wires and make-up)
CON-Electrical Quotes • Interface wiring between ballast and fixture manufacturer was poor/bad wiring (a few mis-wired ballasts) • Electricians worried about mixed voltages and make-up in common boxes • DALI on a non-conduit installation (ie. MC) no value savings in labor • Call backs could be confusing to service people
Summary • When questioned, all of the electricians involved would do another DALI system. All were impressed and thought it was a good education.
The Manufacturer By: Pete Horton
Minimum Requirements to Build a System • DALI Ballast • DALI power supply (Bus controller / Bus Master) • Local Controller
HOK DALI Schematic Tridonic DALI CFL Ballasts H/N/G plus 2 DALI wires CFL Ballasts AdditionalDALIBusses Tridonic DALI Linear Fluorescent Dimming ballasts Tridonic DALI Relay / Watt Stopper ON/OFF Relays DALIwired bus - 2-wire topology & polarity independent - up to 64 devices DALI Ballast Blind/Motor controller DALI Controls Non-DALI Devices Watt Stopper / Starfield Scene Switches WinDim Control Interface Starfield Interface Switches Employee Workstation for lighting overrides Tridonic DALI Bus Controllers WinDimNet Server Router IP over LAN
Tridonic Ballasts Linear fluorescent1/2 F32T8 & 1/2 F54T5HO. CFL Loop Controller (Bus Masters) Software Palm-Dim Win-Dim Win-Dim net DALI System Components Watt Stopper • Scene Controls • 4 button scene switches • Relay Modules • Non dimmed lighting
Starfield Scene Controls In Conference rooms to match A/V controls Switch / relays Shade Controls Projector Lift Screen up/down Key Issue was that devices could coexist with other manufacturer’s devices without causing the system to crash or other devices not to work (“play nice” requirement) DALI System Components
Ballast • Supports two way communications • Stores group / scene programs • Monitors lamp performance, provides energy consumption data. • Provides predictable dimming response • Issue – CFL ballast were not available until after the space was occupied, which created the need for a UL DALI relay module.
DALI Loop Controller(Bus Master) • Required for any DALI System • Provides power for the DALI dataline • Actual power supplied was 150 ma, not 250 ma as specified. • Ballast quantity or power consumption dictates bus quantities. • Provides protocol translation from DALI - RS-232 • One required for every 64 DALI ballasts
Scene / Group Switches Single gang four button switches • Individual office control. • Ballast and non dimmed CFL control • Open Office Control • Arrive / Depart Group Control • Includes group raise / lower function.
Scene Control - Presets Scene 1 Meeting Scene 2 Projection Scene3 Presentation Scene 4 Discussion
DALI Relay Controls • Available in Power Packs or switch configuration. • Used for ON/OFF control off non DALI loads. • Used for: • Non DALI lighting loads • Audio Video Equipment • Shades / Blinds NON DALI Ballast or other load PowerWiring DALI RelayModule Watt Stopper Power Pack DALI Bus
Router • Used to convert eight RS-232 DALI bus controllers to single Ethernet I./P address. • Expensive and provides little value.
Software for Commissioning • Assigned unique address for each ballast • Address routine brings one ballast to 100%, dims all other ballasts on network. • Supports replacement or addition of ballasts • Allows manual control of ballasts • Configures scenes and groups.
PC based Manages single DALI bus control Allows monitoring and control Server Features Manages multiple DALI bus controls Provides Scheduling Multi bus communication. Allows employee workstations to interface to DALI network. Stores historical data Software for Operation
Lessons Learned • Significant IT requirements for this project. • One manufacturer doesn’t have everything yet. • Scheduling needs additional development. • Distributed Processing
The Commissioner By: Charles Knuffke
The Goal of Commissioning • Verify all components are installed properly and working as specified. • To ensure that the owner has complete documentation on the system as it was installed.
Why DALI Commissioning is extra important • More points of control than ever before • More wire in the ceiling than most systems • More capabilities means more settings to deal with
DALI Requirements • All components must be completely installed • Line Voltage Wiring, DALI Communication Bus, All Ballasts and Fixtures, and any DALI Override devices • No Faking It! • If power is shut off to DALI bus, all lamps go to 100% by default.
Start by reviewing the Hardware 5 Bus Masters and a Router in a Custom Enclosure