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Guideform Specification
ezDALI Dimming Controls
AIA Division 16 Specifications - Section 16570
OVERVIEW
The Watt Stopper designs and manufactures lighting control products and systems including occupancy sensors,
daylight sensors, lighting control panels and DALI fluorescent dimming controls.
ezDALI fluorescent dimming controls work in combination with DALI dimming ballasts. A complete system includes a
power supply, wall box controller, DALI ballasts and a DALI data bus. ezDALI allows the lighting within a room to be
assigned to up to four functional groups. The light level for each group can be controlled independently to create
lighting scenes (or presets). Up to four scenes can be stored and recalled with the push of a directory button.
The maximum level for each lighting group may be set and occupancy sensors integrated to automatically turn off
lighting when the space is unoccupied. Both of these functions save energy and ensure compliance with energy codes.
IDEAL APPLICATIONS
Conference rooms
Classrooms
Lecture halls
Small auditoriums
Churches
Executive offices
Restaurants
If you have any questions regarding this specification, please contact your local Watt Stopper sales person, or call
technical support at: 800-879-8585.
Please note that certain items in the specification are optional and not required on all projects. These items are
highlighted in the text and should be removed from the specification if not required for your application.
Thank you for allowing us to help with your project.
AIA Division 16 Specifications – Section 16570
ezDALI Dimming Control
PART 1 GENERAL
1.01 INTRODUCTION
The work covered in this section is subject to all of the requirements in the General Conditions of the Specifications.
Contractor shall coordinate all of the work in this section with all of the trades covered in other sections of the
specification to provide a complete and operable system.
1.02 SYSTEM DESCRIPTION
Install a stand alone fluorescent dimming system in each of the rooms equipped with DALI dimming ballasts. The
control system shall consist of a controller (one per system), a power supply and a data bus connecting these devices
to the DALI ballasts in the room. The system may optionally include a remote scene switch, an occupancy sensor and
relay module(s). The operation of the dimming control system shall include:
Four lighting groups: Each of up to 64 ballasts in a system may be assigned to one of four lighting groups and
controlled by a button on the controller. Groupings may be changed without rewiring.
Four lighting scenes: The light level of each group may be adjusted and then stored to one of four scene buttons for
instant recall.
Maximum level set: The maximum level for each of the four functional lighting groups may be used to tune lighting.
Master OFF/Restore: The last scene or user-selected lighting combination shall be recalled when toggling the Master
OFF button on a controller or remote scene switch.
Remote Scene Switch (option): Up to 10 remote scene switches can be added to provide multilocation recall of the four
lighting scenes with an LED indicator showing the scene in effect.
Occupancy sensing (option): Multiple occupancy sensors providing full coverage of the space may be integrated into
the system through the power supply using low voltage, class 2 wiring. The number of occupancy sensors is limited by
occupancy sensor power consumption and the rated power output of the ezDALI power supply. When the occupancy
sensor detects an absence of occupancy, and its time delay elapses, it shall initiate a five-minute shut-off warning
sequence consisting of controlled lighting groups dimming to 10% output, then off. The last scene or user selected
lighting combination shall be recalled when the area becomes occupied.
20 Amp relay control (option): A relay control module shall allow non-DALI loads to be switched ON/OFF as part of a
group.
1.03 QUALITY ASSURANCE
Manufacturers: Firms regularly engaged in the manufacture of lighting control equipment and ancillary equipment, of
types and capacities, whose products have been in satisfactory use in similar service for not less than five years.
NEC compliance: Comply with NEC as applicable to electrical wiring work.
NEMA compliance: Comply with applicable portions of NEMA standards pertaining to types of electrical equipment and
enclosures.
UL approvals: UL listed under UL 916 Energy Management Equipment.
FCC emissions: Compliance with FCC Emissions Standards specified in Part 15 Subpart J for Class A application.
1.04 SUBMITTALS
Shop Drawings: Submit dimensional drawings of all lighting control system components and accessories.
One-Line Diagram: Submit a one-line diagram of the proposed system configuration if it differs from that illustrated in
the riser diagram included in the contract drawings.
Typical Wiring Diagrams: Submit typical wiring diagrams for all components including, but not limited to, lighting group
controllers, group and scene controllers, power supply, remote scene switches, occupancy sensors and relay modules.
1.05 MANUFACTURERS
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AIA Division 16 Specifications – Section 16570
ezDALI Dimming Control
The basis of the specified system is the ezDALI dimming system manufactured by The Watt Stopper. Any other system
to be considered must submit descriptive information 10 days prior to bid. Prior approval does not guarantee final
approval by the electrical engineer. The contractor shall be completely responsible for providing a system meeting this
specification in its entirety. All deviations from this specification must be listed and individually signed off by the
consultant.
PART 2 MATERIALS AND COMPONENTS
2.01 GROUP AND SCENE CONTROLLER (ONLY ONE CONTROLLER PER SYSTEM)
1)
Description
a) Group and scene controller shall be UL listed and consist of the following:
i) 2-gang wall box mounted device
ii)
2-wire, Class 2 DALI bus
iii) 4-group buttons and 4-scene buttons with directory
iv) Master OFF/Restore button
2)
Features
a)
Controller shall be the source of all commands, the data input device, and the primary occupant interface for
controlling up to 64 DALI ballasts and relay modules.
b)
The controller shall have a 2-wire connection to the class 2 DALI bus and receive its operating power from the
bus thus allowing a low voltage, Class 2 connection to the power supply.
c)
It shall provide the means for assigning each ballast to one of four lighting groups. Each lighting group shall
be dimmed or switched ON/OFF to create a lighting scene that may be assigned to a scene button for instant
recall. LEDs shall indicate the scene status and a directory with lens cap on each button shall be provided to
indicate the group or scene controlled.
d)
The controller shall also provide the means for setting the maximum light level for each of the four lighting
groups.
e)
Locator light for visibility in a darkened room.
f)
Lexan construction of all exposed plastic parts for durability.
g)
Screwless wall plate with hidden latch for limited access to programming buttons.
h)
All programming to be accomplished without the use of a personal computer or external programming tool. A
maximum of three programming buttons shall be required: SELECT, STORE and MAX.
Choice of colors to include white, ivory, almond, gray.
i)
2.02 GROUP CONTROLLER (ONE CONTROLLER PER SYSTEM)
3)
Description
a) Group controller shall be UL listed and consist of the following:
i) Single-gang wall box mounted device
ii)
2-wire, Class 2 DALI bus
iii) 4-Group (or 2-Group) buttons with directory
iv) Master OFF/Restore button
4)
Features
a)
Controller shall be the source of all commands, the data input device, and the primary occupant interface for
controlling up to 64 DALI ballasts and relay modules.
b)
The controller shall have a 2-wire connection to the class 2 DALI bus and receive its operating power from the
bus thus allowing a low voltage, Class 2 connection to the power supply.
c)
It shall provide the means for assigning each ballast to one of the lighting groups. Each of the lighting groups
shall be controlled by a labeled button, which will dim that group or switch it ON/OFF creating a temporary
lighting preset. Pressing the Master switch on the controller will turn all of the groups OFF. When pressed
again, the previous lighting scene will be recalled.
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ezDALI Dimming Control
d)
The controller shall also provide the means for setting the maximum light level for each of the lighting groups.
e)
Locator light for visibility in a darkened room.
f)
Lexan construction of all exposed plastic parts for durability.
g)
Screwless wall plate with hidden latch for limited access to programming buttons.
h)
All programming to be accomplished without the use of a personal computer or external programming tool. A
maximum of three programming buttons shall be required: SELECT, STORE and MAX.
Choice of colors to include white, ivory, almond, gray.
j)
2.03 POWER SUPPLY
1)
Description
a) Power supply shall be suitable for use in a plenum space and consist of the following:
i) J-box mount through 1/2 inch knock out
ii)
Three power wires (hot, neutral, ground) and two DALI bus in class 1 wiring to ballasts
iii) Low voltage class 2 plug-in connections for DALI bus to controller and optional occupancy sensor
2)
Features
a)
Clear separation of Class 1 and Class 2 wiring in conformance to the NEC. Note: systems that require class
2 wires to enter a line voltage compartment or conduit shall not be accepted.
b)
Supports DALI bus and power wiring to fixtures in the same conduit.
c)
Provides separate Class 2 DALI bus for communications with the DALI controller and optional Remote Scene
Switches.
d)
Provides 150mA power to the Class 1 DALI bus for control of up to 64 ballasts. Provides separate 150mA
supply to the Class 2 bus for the Controller and optional occupancy sensors.
e)
Plug-in connector for low voltage control devices.
f)
Automatic message routing between Class 1 and Class 2 DALI buses, which are optically isolated to maintain
isolation of Class 2 wiring.
g)
LED status indicator for the DALI bus indicating correct wiring and normal operation versus open or shorted
wiring of the DALI bus. A red LED indicates unoccupied, green LED indicates occupied, flashing red LED
indicates Class 2 DALI bus is shorted, flashing green LED indicates Class 1 DALI bus is shorted.
2.04 REMOTE SCENE SWITCH (OPTIONAL)
1) Description
a) Single gang wall box mount.
b) Two-wire connection to either Class 1 or Class 2 DALI bus.
c) Requires Group and Scene Controller.
2) Features
a) Four scene control buttons with LED status indication and removable lens cap for labeling.
b) Master OFF/Restore button for normal operation.
c) Up to 10 Remote Scene Switches on a data bus providing Scene and Master recall from multiple locations.
Scenes may be activated from any location and the LED for that scene will be lit in each of the remote
switches.
d) Locator light for visibility in a darkened room.
e) Lexan construction with matching screwless wallplate.
2.05 RELAY MODULE (OPTIONAL)
1) Description
a) 20 Amp power pack and ezDALI control module pre-wired in a standard junction box.
b) Universal supply 120/277 VAC.
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2)
c) Suitable for use in a plenum space.
Features
a) Digital control of non-DALI electrical loads.
b) Zero Crossing circuitry for minimum inrush and extended relay life.
c) Compatible with ezDALI controller commands.
d) Can be wired as either a Class 1 or Class 2 device.
2.06 APPROVED MANUFACTURERS
1)
The Watt Stopper or approved equal.
a) The contractor shall be completely responsible for providing a system that meets this specification in its
entirety. All deviations from this specification must be listed and individually signed off by the consultant.
2)
The Watt Stopper catalog numbers.
a) Group and Scene Controller: DLCSS4
b)
Group Controller: DLC2 (4)
c)
Power Supply: DPS150-1 (2)
d)
Remote Scene Switch: DSS4
e)
Relay Module: DRM
PART 3 EXECUTION AND SUPPORT SERVICES
3.01 INSTALLATION
The controller and power supply for each room will be mounted as indicated on the reflected ceiling plans as will the
following optional devices: remote scene switches, occupancy sensors and relay modules. Use only properly colorcoded, stranded wire as indicated on the drawings. Each of these devices shall be tested after installation to confirm
proper operation. Lighting groups will be created and each button of the controller and Remote Scene Switch will be
labeled per the table supplied on the dimming control schedule. The contractor will confirm the operation of each
lighting group and provide the initial programming for each scene.
3.02 CONTRACTOR PROVIDED INFORMATION
1)
Contractor shall provide system documentation after the equipment has been installed:
a) Lighting control operational summary and programming record sheet for each controller.
b)
Labels for each Group and Scene button.
c)
Instruction Sheets for all devices and a Design and Application Guide.
3.03 WARRANTY
Manufacturer shall provide a five year warranty for all system components.
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