Leviton Provolt Line Voltage Photocell, Ceiling Mount

Line Voltage Ceiling Mount Photocell, Low profile: Set/Off, Fade Rate: 30 Min, Demand Response: 75% (MFG Range 1-1600FC), Title 24 Compliant, ASHRAE 90.1 Compliant

• Self-contained, open and closed loop daylight harvesting system
• Includes two removable light pipes (flat or angled) for open and closed loop daylight harvesting applications
• Leviton-exclusive auto-calibration eliminates the need for on-site configuring at a specific time of day
• Industry exclusive "fail-safe" circuitry assures lights ON to meet life safety requirements (NFPA101)
• Auto-detects momentary or maintained wall station for manual override control
• Manual calibration — used for precise fine tuning and open loop applications
• Low voltage contact closure uses:
• Wall station — dimming/switching and daylight harvesting control
• Emergency lighting — energy savings and safety
• Demand response — meets energy codes
• BMS integration — incorporate into whole building controls
• Dim to OFF — switches load off when minimum level is reached for maximum savings
• Forced ON — user forces lights on for 2 hours through wall station, auto-exit to daylighting state
• Forced OFF — user forces light off through wall station
• Test Mode — fade rate is set to 30 seconds for 60 minutes and then product auto-exits to normal operation
• Power-Up Restore — if manual switch is forced off after a power outage, the lights will remain off
• LED Enable/Disable — flexibility for light sensitive requirements
• 1-10V sinking operation for dimmable LED driver or electronic ballast
• Lamp Burn-In Mode — seasons fluorescent lights

Brand Features:

Leviton Provolt™ Line Voltage Photocell is a first-of-its-kind, self-contained mini daylight harvesting system offering the functionality of a 1-10V dimming photocell combined with the robustness of a Leviton power pack. Ideal for daylight harvesting applications and lighting control in airports lobbies, commercial lobbies, conference rooms and classrooms. The integrated design eliminates the need for additional components such as a separate power pack and low voltage photocell making it a low-cost, efficient energy solution for new construction and retrofits.

The Provolt Line Voltage Photocell uses patented daylighting design level technology to autocalibrate a room or corridor for a more accurate daylight harvesting operation. The photocell maintains the architectural lighting design level through calculation and measurement of ambient (natural and artificial) lighting and fine dimming adjustment.

For installers, the Provolt Line Voltage Photocell provides a simple all-in-one solution for new construction and flexible retrofitting. This revolutionary photocell auto-detects existing momentary or maintained switches and will work automatically with either. The photocell also complies with growing energy regulations and includes a connection for emergency lighting and demand response to meet California Title 24 and ASHRAE Standard 90.1 2010.

LED Indicators:

• Red or Blue — solid during device failure
• Red — blinking during manual calibration
• Green
• Solid during auto calibration
• Blinking during burn-in (dimming models only)
• Blue — blinking when lights are off (daylight, wall station, demand response)
• Yellow
• Solid when device is in emergency mode
• Blinking in test mode

Daylight Harvesting Applications:

Daylight harvesting is an automated lighting control strategy that maximizes the use of natural daylight and minimizes the use of electrical (artificial) light in response to the availability of natural light in a space. The photocell uses three types of daylight harvesting applications:

• Closed loop — photocell detects total photo-metric light from daylight or electric sources in the space
• Open loop — photocell detects daylight or electric light only; requires manual calibration
• Adjustable daylight design levels — Normal (OFF) and Auto-Calibration

Dimming:

The photocell controls a 1-10 VDC dimmable ballast or LED Driver to achieve maximum Energy savings while maintaining a minimum light level referred to as the "DDL". When no daylight is available, the photocell allows the load to operate at its full bright level. As daylight increases in the room, the photocell dims the load. When the minimum dim level is reached (and if the Dim to Off setting is enabled), the device will switch off the lights when the light level is above the DDL for 30 seconds. The lights will remain off until the light level drops below the DDL for 30 seconds. The lights will then be turned on, with the light source set at its minimum dim level. The photocell will increase the light output until the DDL is reached. As the light levels change, the photocell will reduce or increase the dim level in order to maintain the DDL. There is an adjustable Fade Rate dial to make the light level transitions unnoticeable to room occupants.

In The Box:

• 1 x Photocell
• 2 x Removable light pipes (flat or angled)
• 1 x Mounting Plate, 4" x 4"
• 2 x Screws, #6-32 x 1-1/2"
• 1 x Low Voltage Connector
• 1 x Tubing Barrier
• 1 x Emergency Label

NOTE: The connected light switch must have a neutral wire. Model PCC1D-W does not include dual zone operation feature.