Specification for HUNT Dimming Simplicity® Series Model SSD Digital Dimming Systems
 
Performance Specification SSD-2004
Section 26 09 33
Central Dimming Controls
 
 
PART 1 GENERAL
 
1.01         SUMMARY
A.    The following specification details the minimum performance and related criteria for a lighting control system proposed for this project.  Any deviations from this specification must be documented in writing and submitted to the Architect prior to the issuance of any contracts and must also include all associated cost savings or additions, including, but not limited to, equipment, equipment installation, power wiring labor and materials, programming, documentation and project management.
 
1.02         SECTION INCLUDES
A.    Provide, install and test an architectural lighting control system as specified herein for the areas indicated on the drawings, specifications and load schedule(s).
 
1.03         RELATED SECTIONS
A.    Section 26 09 36 (Modular Dimming Controls)
B.     Section 26 51 13 (Interior Lighting Fixtures, Lamps and Ballasts)
 
1.04         REFERENCES
A.    Underwriters Laboratories Inc.
B.     American National Standards Institute
C.    Institute of Electrical and Electronic Engineers
 
1.05         SYSTEM DESCRIPTION
A.    System shall consist of factory pre-assembled, convection-cooled, dimming and switching panels, and low voltage wallstations and/or control interfaces.  Additional items may also be required and are described herein and/or shown on the drawings.
 
1.06         SUBMITTALS
A.    Shall include a load schedule, which indicates the actual connected load and load type per circuit, circuits and their respective control zones, circuits that are on emergency (if applicable), and the capacity, phase, and corresponding circuit numbers (per the electrical drawings).
B.     Shall include a complete schematic of the system.
C.    Shall include catalog cut-sheets with performance specifications demonstrating compliance to the specifications herein.
D.    Shall include all exceptions taken to the Specification.
E.     Manufacturer shall provide additional information as required by Specifier to demonstrate conformance with Part 2 of this specification.
 
1.07         QUALITY ASSURANCE
A.    Manufacturer shall have a minimum of 40 years continuous experience in the manufacturing of lighting controls.
B.     Lighting control system shall be UL and cUL listed.  Manufacturer shall provide evidence of compliance on request.
C.    Lighting control system shall be bid separately from all other lighting equipment.  Packages of lighting equipment and dimming systems shall not be acceptable.
 
1.08         PROJECT/SITE CONDITIONS
A.    Lighting controls shall operate in an ambient temperature range of 0C (32F) to 40C (104F) and 90% non-condensing relative humidity without the requirement of a regularly scheduled maintenance program for air filtration components.
 
1.09         WARRANTY
A.    Manufacturer shall provide a full one-year warranty on all equipment supplied.  Warranty shall cover 100% of the cost to repair or replace any parts required during the first one year, which are directly attributable to the manufacturer.
 
1.10         FACTORY START-UP
A.    The contractor shall provide the manufacturer with 20 working days notice of the requested factory start-up date.
B.     Upon completion of the installation, if factory start-up has been chosen as an add-on option, the system shall be completely field verified for proper functionality by a factory-certified technician.  The check-out will be performed after all loads have been tested live for continuity and freedom from defects and that all control wiring has been connected and checked for proper continuity.  The factory-certified technician shall demonstrate and educate the owner's representative(s) on the system capabilities, operation, and maintenance.
C.    Manufacturer shall offer the additional option of an extended warranty, based upon successful factory start-up.
 
PART 2    PRODUCTS
 
2.01         ACCEPTABLE MANUFACTURERS
A.    HUNT Dimming
      200 Rome Court
      Fort Collins, CO  80524
  
      Tel: (970) 484-9048  
      Fax: (970) 493-4125 
 
      www.huntdimming.com
 
B.     The listing of a manufacturer as "acceptable" does not imply automatic approval.  It is the sole responsibility of the electrical contractor to ensure that any price quotations received and submittals made are for products/systems that meet or exceed the specifications included herein.
 
2.02         POWER PANELS
A.    Panels shall be UL and cUL listed.  Panels dimensions shall not exceed 29 H x 10.75 W x 7.5 D (120V) or 37 H x 10.75 W x 7.5 D (277V) for twelve or less circuits.  Panel weight shall not exceed 53 lbs. (120V) or 69 lbs. (277V) for twelve or less circuits.  Applications requiring more than twelve circuits shall utilize additional panels of the referenced size and weight until the required number of circuits has been met.  Panels exceeding these size and weight parameters shall not be acceptable.  
B.     Panels shall be wall-mounted and NEMA grade, of a gauge as required by UL508.  Contractor shall reinforce wall, if structurally necessary.
C.    Panels shall be completely pre-assembled and factory tested by the manufacturer.  The contractor shall be required to provide input feed wiring, load wiring, and control wiring.  No other wiring or assembly by the contractor shall be permitted.  All input feed, load, and control terminals shall be front accessible without the need to remove dimmer assemblies or other components.
D.    Unless the panel is a dedicated feed-through switching panel or otherwise indicated, panels shall contain branch circuit protection for each dimming assembly.  Dimming panel or branch circuit breakers shall have the following performance characteristics:
1.     Be UL Listed under UL 489 as a molded case circuit breaker for use on lighting circuits.
2.     Contain a visual trip indicator and shall be rated at 10,000 AIC (120V) or, optionally, up to
14,000 AIC (277V).  Manufacturer shall be able to provide up to 100,000 AIC (120V) 
or 150,000 AIC (277V) fault current rating for the panel, as an option.
3.     Be thermal-magnetic or thermal-hydraulic in construction for both overload and dead short protection. 
4.     Be replaceable without removing dimmer assemblies or other components of the panel.
E.     Activation of a circuit protection device shall affect only the single circuit that it is wired to protect.
F.     Panels requiring the neutral feeder to be sized larger than any individual phase feeder shall not be acceptable.
G.    Panels shall be capable of maintaining dimmers at current light levels in the event of a control failure.  Systems that fail-to-OFF during a control failure are not acceptable.
H.    Panels shall be convection-cooled.  Specifically, panels shall be passively cooled via free-convection, unaided by fans.  Systems that are fan dependent or fan assisted, or that recommend regularly scheduled maintenance for air filtration components are not acceptable.
I.      Panels shall provide a minimum of 54 square inches of cooling surface area for each semiconductor.
J.      Panel shall provide the capability to electronically assign each circuit to any zone in the dimming system.  Panels using mechanical switches, rewiring, or EPROMs shall not be acceptable.  All circuits shall be capable of being operated (dimmed or switched where appropriate) from the panel.
K.    Multiple panels shall be capable of being linked together and operated as one large system.
L.     For panels fed with a normal/emergency feeder, panel shall have available optional electronics to bring all circuits to an emergency full-ON condition upon the loss of normal power and the subsequent presence of emergency power.  Designated circuits shall be controlled simultaneously with other lighting circuits within the designated control zone during the presence of normal utility or generator power.
M.   Panels listed as emergency shall have all circuits immediately go to a full-ON condition.  All dimmers shall operate at 100% of input voltage.  All local control stations are inoperable during this period.  Once normal power is restored, all lighting zones shall revert back to their status prior to the emergency condition without requiring any action on the part of the user.  Restoration to some other "default" level is not acceptable.
N.    This type of emergency full-ON may be used with a normal/emergency generator, a UPS, or IPS system with true sine wave output and maximum of 10% THD.  The generator, UPS, or IPS system must be capable of operating under no load conditions or a constant hot secondary utility feed where the emergency transfer occurs on the line side (upstream) of the dimming panel and requires that only a single normal/emergency feeder be brought to the Emergency Dimmer Panel.
O.    System shall be capable of meeting local jurisdictions requiring special conditions such as minimum light levels during normal operation or full function, even during emergency power.
 
2.03         MODULAR DIMMING ASSEMBLIES
A.    Semiconductor devices shall be back-to-back SCRs.  Products utilizing single triac construction shall not be acceptable.
B.     Dimmer shall be capable of withstanding inrush current of 40 times operating current.  In addition, under fully-loaded operating conditions, all semiconductor devices shall operate at a minimum 20C (68F) safety margin below the component temperature rating.
C.    A positive air gap switch shall be employed with each dimmer in the panel to ensure that the load circuits are open when the "OFF" function is selected from the control system.
D.    Each dimmer shall compensate for incoming line voltage variations such as changes in RMS voltage, frequency shifts, harmonics and line noise.  Dimmer shall be capable of maintaining constant light level with no visible flicker under the following conditions:
1.     2% change in RMS voltage/cycle
2.     2 Hz change in frequency/second
Dimmers that do not regulate the dimmer output in real time shall be unacceptable.
E.     Each dimmer shall incorporate an electronic "soft-start" default at initial turn-on that smoothly ramps the lights up to the appropriate levels within 0.5 seconds.
F.     Once installed as part of a complete system, the semiconductor used to control the power furnished to the loads shall be both designed and tested to withstand surges, without impairment to performance, of 6000V, 3000A (equivalent to a near lightning strike) as specified by ANSI/IEEE std. C62.41.
G.    One type of dimmer shall be used for all sources, line voltages, and frequencies.  Systems requiring different types of modules shall not be acceptable.  Dimmer shall be capable of electronic assignment to any source and any zone.  Upon replacement of a dimmer, only that dimmer shall require replacement, and no re-programming shall be required.
H.    Filtering shall be provided for each dimmer so that current rise time shall be at least 350sec as measured from 10-90% of the load current waveform and at least 525sec as measured from 0-100% of the load current waveform at 50% rated dimmer capacity at a 90 conduction angle.  Current rise time shall be at least 400sec as measured from 10-90% of the load current waveform and at least 600sec as measured from 0-100% of the load current waveform at 100% rated dimmer capacity at a 90 conduction angle.  At no point should current rise faster than 30mA/sec.
I.      Dimmer output voltage shall be a minimum 95% of input voltage at maximum intensity setting.
J.      Dimmer shall include diagnostic LEDs to verify proper operation and assist in any system troubleshooting.
 
2.04         MODULAR SWITCHING ASSEMBLIES
A.    Semiconductor devices shall be back-to-back SCRs.  Products utilizing single triac construction shall not be acceptable.
B.     Assembly shall be capable of withstanding inrush current 75 times operating current.  In addition, under fully-loaded operating conditions, all devices shall operate at a minimum 20C (68F) safety margin below the component temperature rating.
C.    A positive air gap switch shall be employed with each circuit in the power panel to ensure that the load circuits are open when the "OFF" function is selected from the control system.
D.    Once installed as a complete system, the relays used to control the power furnished to the loads shall be both designed and tested to withstand surges, without impairment to performance, of 6000V, 3000A (equivalent to near lighting strike) as specified by ANSI/IEEE std. C62.41.
E.     Relays shall be rated for at least 17 Amps continuous duty.  Relays rated only for resistive loads shall not be acceptable.
F.     Average rated life of relay shall be at least 1,000,000 cycles.
 
2.05         SOURCES
A.    Dimming assemblies shall operate the following sources/load types with a smooth continuous Square Law dimming curve.  Dimmers that have visible "steps" of light intensity throughout the control range shall not be acceptable.  Dimmers shall also be capable of operating the following sources on a non-dim basis.  Dimmers shall be electronically assigned to the appropriate load type/dimming curve and can be reassigned at any time.  Universal-type dimmers that do not adjust the dimming curve shall not be acceptable.
 
         Simplicity® Series digital dimming panels for two-wire, phase-control loads:
1.     Incandescent, Tungsten and Magnetic Low Voltage Transformer
2.     Electronic Low Voltage Transformer (selected transformers as approved by factory, only)
a.      Dimming shall not adversely affect sound rating of the electronic transformers.  In addition, no flicker or interaction shall occur at any point in the dimming range.
b.     Dimmers shall provide the ability to dim lamps down to 0% (blackout).  Minimum light levels shall be user adjustable in order to compensate for different loading of each dimmer.
3.     Fluorescent Electronic Dimming Ballast (two-wire, phase-control)
a.      Refer to general section 16580 for dimming ballast specifications and performance.
b.     See fixture schedule and/or load schedule for specific ballast model numbers.
c.      Contact factory for a current list of approved two-wire, phase-control ballast manufacturers and their model numbers.
4.     Neon and Cold Cathode (magnetic transformers, only)
a.      Dimmer shall provide the ability to dim lamps down to 10% of full light output when used with normal (low) power factor transformers.
b.     The lamp performance over the range specified shall be continuous and free of flicker or striations.
c.      Neon/cold cathode lamps shall be manufactured with strict attention paid to proper lamp pressurization and exclusion of any impurities to ensure best dimming performance.
d.      Transformers shall be sized per transformer sizing tables developed by the dimming manufacturer.
e.      The electrical contractor is responsible for proper neon or cold cathode lamp and wiring installation.
 
               Simplicity® Series digital dimming panels for four-wire, 0-10VDC controlled loads:
1.     Fluorescent Electronic Dimming Ballast (four-wire, 0-10 VDC controlled)
a.      Refer to general section 16580 for dimming ballast specifications and performance.
b.     See fixture schedule and/or load schedule for specific ballast model numbers.
c.      Contact factory for a current list of approved four-wire, 0-10VDC controlled ballast manufacturers and their model numbers.
 
 
2.06         CONTROLS
A.    Definitions: A "scene" or "preset" is a specific look or mood created by different lighting zones set at different intensities.  A "zone" is one or more lighting circuits that are controlled together as a group.
B.     Control shall provide power failure memory.  Should power be interrupted and subsequently returned, the lights will come back on to the same levels set prior to the power interruption without requiring any actions on the part of the user.  Restoration to some other default level is not acceptable, unless specifically noted elsewhere.
C.    Wiring from dimming and switching panel(s) to preset control unit(s) and wallstations and control interfaces shall be low voltage type Class 2 wiring (PELV).
D.    Faceplate shall attach using no visible means of attachment.
E.     Controls shall be engraved with appropriate zone and/or scene descriptions, furnished to the manufacturer prior to fabrication.  Size and style of engraving type shall be determined by the Architect.  Any silk-screened borders, logos, graduations, etc., shall use a graphic process that chemically bonds or engraves the graphics to the faceplate, resisting removal by scratching, cleaning, etc.
F.     Controls shall provide an immediate, local LED response upon button activation to indicate that a system command action has been requested.  LED will remain lit contingent upon receiving system confirmation of the successful completion of the command.
G.    Each system shall contain a minimum of 1 control, up to a maximum of 256 controls.
H.    Up to 1024 circuits may be programmed to be controlled via any control.
I.      Wall controls and control interfaces shall be capable of recalling preset lighting scenes.
 
2.07         0-10 BUTTON CONTROL(S)
A.    Control shall mount individually in standard manufacturer supplied single gang U.S. wallbox.
B.     Control shall be available with zero to 10 buttons, configurable in any design fitting a standard 
       H-shaped pattern.
C.    Each button can be programmed to be Raise, Lower, OFF, or scene selections.  Each button can be programmed to control any circuit or zone.
D.    Control shall have the capability to be used with an infrared wireless remote control.
E.     Lighting levels shall fade smoothly between scenes at time intervals of 0 seconds to 63 minutes.  The fade time shall be separately selectable for each scene.  Pressing a scene select button will illuminate the corresponding scene LED and simultaneously begin changing the lighting levels to reflect the currently selected scene.  
 
2.08         0-24 BUTTON CONTROL(S)
A.    Control shall mount individually in standard manufacturer supplied 3-gang U.S. wallbox.
B.     Control shall be available with zero to 24 buttons, configurable in any design fitting six across and four down.
C.    Each button can be programmed to be Raise, Lower, OFF, or scene selections.  Each button can be programmed to control any circuit or zone.
D.    Control shall have the capability to be used with an infrared wireless remote control.
E.     Lighting levels shall fade smoothly between scenes at time intervals of 0 seconds to 63 minutes.  The fade time shall be separately selectable for each scene.  Pressing a scene select button will illuminate the corresponding scene LED and simultaneously begin changing the lighting levels to reflect the currently selected scene.  
 
2.09         LCD TOUCHSCREEN CONTROL(S)
A.    LCD Touchscreen shall mount individually in manufacturer-supplied wallbox.
B.     Each LCD Touchscreen shall have the capability of emulating any pushbutton control in the system.
C.    The LCD Touchscreen can have up to 30 custom graphics pages.  Password protection is optional.
D.    LCD Touchscreen shall have the capability to be used with an infrared wireless remote control.
 
 
 
2.10         INFRARED REMOTE TRANSMITTER(S)
A.    Standard Remote
The system shall have an accessory infrared remote control unit consisting of a hand-held customized transmitter.  The transmitter shall have the capability to select up to 32 scenes, master scene raise/lower and select the scenes relating to the control at which it is aimed.  
B.     Programming Remote
A programming infrared remote control shall be available for the basic re-programming or fine-tuning of preconfigured light levels consistent with adjustments made during LEED commissioning of a lighting control system.  Systems not offering this capability shall not be acceptable.
 
2.11         CONTROL INTERFACE(S)
A.    RS232 Interface(s)
Control shall provide integration of preset control unit(s) to user-supplied PC or digital audiovisual equipment using RS232 serial communication.  Control provides access to scene selections, scene lockout (prohibits manual light level changes), sequencing, zone lockout (prohibits permanent scene changes), and fine-tuning of light levels with individual zone raise/lower.  Control shall provide status monitoring through button feedback and scene-status updates.  Control must be mounted within 50 feet (15 meters) of the RS232 source.
B.     Programmer Interface(s)
Control shall provide an integral timeclock with a minimum of 60 events per schedule.  Control shall provide integration of preset control unit(s) to user-supplied PC or digital audiovisual equipment using RS232 serial communication.  Control shall provide access to scene selections, scene lockout (prohibits manual light level changes), sequencing for a minimum of 60 steps, zone lockout (prohibits permanent scene changes), and fine-tuning of light levels with individual zone raise/lower.  Control shall provide status monitoring through button feedback and scene-status updates.  Where indicated, control shall provide capability of complete setup of all parameters via an IBM-compatible PC.  Parameters shall include scenes (including both light levels in 0.5% increments and fade times), load types, low-end trim, tamperproof protection of scenes, and communication between control units (if applicable).  Interrogation of the above parameters, including control unit type, shall also be available via the RS232 connection.  Permanent installation of the PC shall not be required unless indicated on the drawings.  Manufacturer must supply windows-based software.  Control must be mounted within 50 feet (15 meters) of the RS232 source.
C.    DXM512 Interface(s)
Control shall be capable of receiving DMX512 input for control, as an option.
D.    Contact Closure Interface(s)
Control shall provide two way interface between four scene preset controls and dry contact closure devices such as from Timeclock Inputs, Building Management Systems, Fire Alarm Systems, Security Systems, and Occupancy Sensors.  Control shall provide a minimum of five input and five output terminals.  Input terminals must be able to accept maintained or momentary inputs with a minimum pulse time of 40msec.  Inputs must have an on-state saturation voltage less than 2.0VDC and an off-state leakage current less than 10mA.  Outputs must be capable of controlling other manufacturers' equipment.  Customer provided output indicators must not exceed 200mA at 30VDC.  Control shall be capable of providing the following functions: scene selection, panic mode, sequencing, zone and scene lockouts, and partitioning.
 
2.12         SOURCE QUALITY CONTROL
A.    Equipment shall be 100% tested for proper operation at two different levels: printed circuit board, end of line prior to shipment from the factory.  Manufacturers sample testing at the end of the production line shall not be acceptable.
 
PART 3    EXECUTION
 
3.01         INSTALLATION
A.    Equipment shall be installed utilizing manufacturer's catalog cut sheets and installation instructions and in accordance with these specifications.
B.     Contractor shall furnish all equipment, labor, system setup and other services necessary for the proper installation of the products/system as indicated on the drawings and specified herein.  System setup shall include defining each dimmer's load type, assigning each load to a zone and setting the control functions.
 
3.02         MANUFACTURERS' FIELD SERVICES
A.    Upon completion of the installation, if factory start-up has been chosen as an add-on option, the system shall be completely field tested by a factory-certified technician.  The check-out will be performed after all loads have been tested live for continuity and freedom from defects and that all control wiring has been connected and checked for proper continuity.  The factory-certified technician shall demonstrate and educate the owner's representative on the system capabilities, operation, and maintenance.
B.     Manufacturer shall offer an upgraded warranty, as an additional option, based upon a successful factory start-up.
C.    Manufacturer shall provide technical support during normal business hours.