Division 16 Electrical

Section 16900 Distributed Intelligence, Wide Area Low Voltage Lighting Control System

PART 1 GENERAL

1.1 SUMMARY.

A. Scope:

This section includes the distributed intelligence wide area low voltage lighting control system.

B. Related Documents:

Refer to the following sections for related work requirements:

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1.2 QUALITY ASSURANCE.

A. Acceptable Manufacturers:

Lighting Control Manufacturer shall have not less than five years successful experience with lighting control projects of this size and scope. Examples of acceptable manufacturers are MicroLite and General Electric. Other manufacturers may be considered provided they supply a detailed line-by-line compliance comparison for the Engineer's review at least 10 days prior to the bid date. It is the sole responsibility of the Electrical Contractor to ensure that all equipment meets the specifications. The MicroLite representative for Northern California is Karen Inkelis, 925-485-0497; e-mail karen@inkelis.com.

B. Standards:

A. All equipment shall comply with appropriate portions of the National Electrical Code.

B. The lighting control system shall be UL listed under UL916 - Energy Management Equipment.

C. All lighting control equipment shall be in compliance with FCC Emission Standards specified in Part 15 Subpart J for Class A applications.

D. Where government regulatory agencies have established a review and/or certification procedure for lighting control systems (for example California Title 24), it shall be the responsibility of the lighting control manufacturer to supply approved product.

1.3 SUBMITTALS.

Submittal documentation shall be furnished by the manufacturer for approval by the Engineer and must be approved in writing prior to shipment of any equipment from the manufacturer. It shall consist of:

A. Bill of Materials. The manufacturer shall submit in bill of material form an itemized list of all materials being supplied to meet the specifications.

B. Shop Drawings. Manufacturer shall submit dimensional drawings of all equipment.

C. Riser Diagram. Manufacturer shall submit a line diagram of the system configuration in sufficient detail to show the relative placement of all equipment and interconnection with equipment supplied by other manufacturers.

D. Wiring Diagrams. Manufacturer shall submit typical wiring diagrams for all components. Detailed interconnection diagrams are required only if proper interconnection of components is not clearly indicated on typical wiring diagrams.

A. Product Overview. Manufacturer shall submit data sheets on all components of the system. These shall describe all hardware and software items provided. A detailed line by line specification compliance shall also be included.

B. Copies. Manufacturer shall provide ___ copies of submittals

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C. If a graphical user interface is required on the computer monitor, the Lighting Control Manufacturer shall submit conceptual examples of graphic screens for preliminary approval by the engineer. Final graphical screen layout shall incorporate 100% accurate as-wired information supplied by the electrical contractor.

D. Warranty Statement. Submittal shall contain a true and complete copy of the manufacturer’s warranty.

1.4 CUSTOMER SUPPORT SERVICES.

A. Commissioning. The manufacturer shall supply a factory-trained technician to commission the lighting control system. Contractor shall contact the lighting control manufacturer in writing at least three weeks prior to schedule the factory startup visit. Contractor shall cooperate fully with the manufacturer’s field service technician to locate and gain access to all lighting control panels and circuits. Technician shall test and verify that the contractor has properly installed and connected all supplied components. It is the contractor’s responsibility to correct all wiring and installation errors as noted by the technician in a timely manner. Manufacturer shall allot sufficient time to complete a thorough testing of the entire lighting control system.

B. Training. As part of the commissioning procedures, the manufacturer shall train the owner’s representatives in the operation of the system. It is the responsibility of the owner to send qualified personnel to the training class who will be responsible for operation of the system.

C. Technical support. The manufacturer shall supply telephone support at no additional cost to the owner for the duration of the warranty period.

D. Replacement Components. The manufacturer shall be able to ship replacement parts within 24 hours for any component that fails during the warranty period.

E. Extended Service Coverage. Maintenance agreements shall be available from the manufacturer to provide service for the system both during and after the warranty period.

1.5 WARRANTY.

A. Installation Warranty. The electrical contractor shall warrant that it will provide the on-site labor to replace any portion of the lighting control system equipment or wiring that fails due to defect in materials or workmanship during the warranty period.

B. Manufacturer's Warranty. The lighting control manufacturer shall provide a written warranty agreeing to replace any equipment it has supplied that fails due to materials or workmanship.

C. Warranty Period. The manufacturer’s warranty shall be for a period of one year after commissioning and owner training has been completed, or 18 months after shipment from the manufacturer’s factory, whichever occurs first.

PART 2 MATERIALS.

2.1 GENERAL.

The lighting control system shall consist of one or more relay panels, interconnecting wiring, and related control hardware (such as switches, occupancy sensors, photocells, computers, software, firmware, and telephone or other system interfaces) as indicated on the drawings. Optional system hardware and capability mentioned herein but not shown on drawings and schedules related to this project are not required in the base bid, but must be currently available from the manufacturer as a plug-in upgrade.

2.2 PANEL HARDWARE.

Provide factory assembled and tested relay panels as indicated on the drawings. Each panel shall contain the quantity of assigned relays, spare relays, and available spaces as indicated on the panel schedules. Each panel shall consist of:

D. Backbox. The rough-in enclosure shall be shipped separately from the remainder of the equipment to allow for rough in of all conduits. It shall be made of code gauge steel and painted the manufacturer’s standard color. Labels shall indicate the areas restricted to low voltage Class 2 wiring.

E. Chassis. The panel interior shall be pre-assembled, factory tested, and shipped as a unit containing the specified number of relays, required electronics, and power supply. The chassis shall be divided into line voltage and low voltage compartments. The chassis shall be permanently marked at the factory with identifying numbers and letters that correspond with the engineer’s drawings and panel schedules. The chassis shall bear the U.L. label (or equivalent) indicating the approved uses. The chassis shall bear a label indicating inspection and acceptance by the manufacturer’s quality assurance department.

F. Trim. Manufacturer shall supply heavy gauge painted or coated steel trim that incorporates a lockable door for access to the low voltage compartment. Trim shall include all necessary mounting hardware and be keyed alike to all other panels in the system.

G. Power Supply. The panel shall have a dual rated 120/277 VAC, 60 Hz, power supply that supplies all power for the panel. The power supply shall be protected with a replaceable time delay fuse. A switch shall be provided to turn the power supply on and off.

H. Relays. Each controlled circuit shall be connected through a single pole, single throw mechanically latching relay,

1. Each relay shall have two sets of contacts.

2. The load contacts shall be rated 20A, 125 VAC Tungsten; 20A 277 VAC Ballast; 1.oHP, 125 VAC; 1.5HP,250VAC.

3. Auxiliary contacts rated at 0.16A, 28VDC

4. Dual poke-home holes to accept #10 - #14 wire

5. Low voltage relay leads shall terminate in a molded connector for quick attachment

2.3 STANDARD PANEL ELECTRONICS.

Each panel shall be constructed in a modular fashion with removable circuit cards that provide the following functions.

A. One or more relay module(s) to activate relays as needed.

B. One or more switch modules to sense the position of external switches connected to the panel.

C. A network module to communicate with other panels and with the computer.

2.4 OPTIONAL PANEL CONFIGURATIONS AND ELECTRONICS

Manufacturer shall offer alternative panel and electronics solutions to suit the specific requirements of the installation. These shall include as a minimum.

a) alternative size panels to suit the application

b) optional weather resistant enclosures

c) optional internal heaters and air conditioning units for severe climates

d) multipole options for outdoor lighting

e) automatic transfer switching for proper sequencing of emergency power

f) interface to building automation systems

2.5 CONTROL CAPABILITIES.

The system shall provide the following standard features.

A. Positive system status. The system shall continuously monitor the position of all relays to provide real-time indication of status (on or off). The system shall annunciate and record relay operation failures.

B. Configurable Switch Inputs. Each switch input shall be user definable as follows

6. Maintained Input. The relay is turned on when the switch closes, and turned off when it opens.

7. Momentary Input. The load toggles to the opposite state with each closure. No action is taken on opening.

8. Time Delay. The load turns on when the switch closes and remains on for the user selected period of time (1 minute to 10 hours), after which it automatically turns off

9. Pulse Accumulator. When connected to an energy meter containing output pulse contacts, this input records the number of pulses received, corresponding to the amount of energy used.

10. Zoning. The user may define logical groups of relays and assign them to any individual switch or combination of switches regardless of location.

11. Alarm. This input is a momentary input that causes an alarm to be raised at the operator's station and adds an entry into the alarm log each time it is operated.

12. Interlock. This input is used for cleaning crews. It will turn on its associated load. When the next interlocked load is activated, the previous one is turned off Interlocked loads shall not cancel a time schedule or occupant override.

13. Priority Override On. The relay remains on as long as the priority switch is on. The relay ignores all time schedules and other commands while the priority switch is on.

14. Priority Override Off The relay is off as long as the priority switch is off The relay ignores time schedules and all other commands when the priority switch is off

C. Memory Loss Protection. Program and setup memory shall be protected against power failure for at least one year.

D. Power Fail Recovery. When line power fails, the system shall halt program execution in a safe and orderly manner. The internal clocks shall continue to keep time during the power outage. Upon return of power, the system shall automatically resume and return the system to normal operation without operator attention. Any time schedule events that would have occurred during the power outage shall be automatically updated

E. Real Time Clock . A digital clock shall provide time of day, day of week and date. Leap year adjustment and daylight savings time shall be automatically compensated when and as required. Daylight savings time shall be deselectable for those communities that do not observe daylight savings time.

F. Astronomical Clock. The system shall incorporate an astronomical clock that automatically calculates local sunrise and sunset based on the date and geographic location. Time based relay activation may be linked to sunrise and/or sunset and may be offset by any amount up to 120 minutes before or after.

G. Time Schedules. System shall permit each load in each panel to be uniquely programmable with respect to timed events. Separate schedules shall be provided for each of the seven days of the week. System shall incorporate a perpetual calendar that permits special schedules to be predefined for future dates such as holidays.

H. Switch Groups. All switches shall be software programmable to control any relay or combination of relays even if they are members of multiple groups (group overlapping). Any switch input shall be able to control loads anywhere in the network. All programming changes shall be made via software programming.

I. Occupant Warning. As defined by the system operator/owner, each load shall be programmable to provide a warning blink prior to each scheduled "Off' time. Once the warning has occurred, the occupant may cancel the upcoming "Off' command by operating a local override switch. The load shall remain "On'¹ until expiration of the time out period, or another "Off' command is received. Occupant warning time shall be adjustable between 5 and 30 minutes.

J. Load Sequencing. To limit demand spikes, multiple loads shall not operate simultaneously Loads shall be operated in sequence to reduce the inrush.

2.6 NETWORK REQUIREMENTS.

A. The lighting control system shall be a distributed intelligence system, consisting of multiple panels that operate on a network.

B. Independent Operation. Each panel shall continue to function independently of other panels in case of any failure.

C. Network Capacity. The maximum number of panels and the maximum network wire length shall be more than sufficient to build this system with spare capacity for possible future expansion.

D. Network Cable. Contractor shall strictly adhere to the manufacturer’s specifications with regard to network cable and network routing.

E. Network panel sequence. Contractor shall wire the network exactly as indicated by the manufacturer.

2.7 LIGHTING CONTROL COMPUTER.

The manufacturer shall provide an appropriate computer including all necessary software to operate this system. The computer shall include a modem for purposes of off-site troubleshooting and operator training. The computer shall be provided and fully configured by the lighting system manufacturer. When shown on plans related to this project, manufacturer shall provide a touch-screen control station in each location shown on the drawings.

2.8 SOFTWARE.

The manufacturer shall supply software as follows.

A. Windows-based software shall be supplied that provides for programming and monitoring of the lighting control system.

1. The software shall be fully Windows compliant, complete with multiple windows, point and click operation, dialog boxes, menu bar, scroll bars, status bar, control buttons, and context sensitive help screens.

2. The software shall be icon driven with each button corresponding to a major function of the lighting control system. Icons for optional features shall be enabled if the option is installed in the panel being accessed.

3. Security codes shall be assignable by the owner so that various operators may have different levels of access to the system.

4. Configuration dialog boxes shall be provided that allow assignment of descriptions to individual loads and inputs. These descriptions shall be carried over automatically to other screens.

5. A time schedule editor shall be provided that allows time schedules for multiple loads to be viewed and edited on the same screen.

6. The system operator shall have the means to view and/or change the state of any relay or group of relays directly from the computer screen.

7. The system shall permit the assignment of time schedules to individual relays and to groups of relays.

2.9 OPTIONS.

When indicated on drawings and panel schedules related to this project, the manufacturer shall supply all necessary hardware and software to implement the following features

A. Pilot Lighted Switches.

B. Telephone Override Interface

C. Low-Voltage Relay interface to other building systems such as HVAC

D. Photo controller with external light sensor.

E. Remote Operator Control Station. (touch sensitive display to act as a virtual switch panel)

PART 3. EXECUTION

3.1 INSTALLATION.

A. General. Install the lighting control equipment according to the manufacturer's written instructions.

3.2 CONTROL WIRING INSTALLATION.

A. Provide and install all wiring between control devices as indicated in the contract drawings, details, and/or indicated in the manufacturer's submittal package.

B. Bundle, train and support wiring in enclosures.

3.3 FIELD QUALITY CONTROL.

A. Manufacturer's Field Services. Arrange the services of factory-authorized service representatives to commission, test and program the lighting control system.

B. Reports. Prepare written reports of tests and observations. Report defective materials and unsatisfactory test results. Record repairs and adjustments made.

C. Test Labeling. Upon satisfactory completion of tests and inspections, apply a label to tested panels indicating test results, date and testing organization and person.

3.4 CLEANING.

A. Cleaning. The contractor shall remove all paint spatters and other spots, dirt and debris from the equipment. Clean all equipment and devices internally and externally using methods and materials recommended by the manufacturer.

3.5 COMMISSIONING.

A. Operational Tests. The electrical contractor shall provide a complete set of "as wired" drawings of the lighting control system to the owner. These drawings shall be prepared and verified prior to commissioning of the system

B. Training. Arrange for the services of factory-authorized service technicians to demonstrate the lighting control system and train owner's maintenance personnel. Provide 3 weeks notice of desired training dates.

C. Programming. Arrange for the services of a factory authorized service technician to install an initial lighting control program into the system. Coordinate schedules with the owner so that a complete schedule is available at the time of commissioning. The electrical contractor shall be responsible for schedule updates until system is turned over to owner.