Crestron SolarSync GLS-LCCT Quick Start

GLS-LCCT
Crestron SolarSync™ Outdoor Daylight and Color Temperature Sensor
The Crestron® GLS-LCCT SolarSync™ photosensor measures the
correlated color temperature (CCT) and illuminance (lux) of outdoor,
natural sunlight. Measurements from the sensor are relayed to the
Crestron control system, which adjusts indoor lighting to match
outdoor lighting conditions.

Check the Box

Item
GLS-LCCT
Connector, 4-Pin, Male, White (P/N 2042613)
Connector, 4-Pin, Female, White (P/N 2042614)
Nut, 1/2 in.-14 (P/N 2047626)
O-ring, 1.64 in. OD, 1.36 in. ID, 50 Durometer (P/N 2052793)

Installation

The GLS-LCCT is designed to be mounted outdoors (on a roof)
or indoors (beneath a skylight). When determining the mounting
location, provide the GLS-LCCT with an unobstructed view of the
sky. Use a 1/2 in. knockout (0.885 in. (22.5 mm) actual hole size) when
mounting.
WARNING: To avoid personal injury and equipment damage, consider
the following when mounting the GLS-LCCT outdoors:
• Secure the GLS-LCCT to an IP67 or better J-box to ensure that
the enclosure remains waterproof.
• Use a CSP-LSP Lighting Strike Protector to prevent personal
injury or damage to the control system and other devices on the
Cresnet® network from a lighting strike.
•
Mount the CSP-LSP inside the building at the point where the
Cresnet network cable enters the building. The CSP-LSP must
be properly grounded.
• For installation, wiring, and operation of the CSP-LSP,
refer to the CSP-LSP Installation and Operation Guide at
www.crestron.com/manuals.
Install the GLS-LCCT:
1. Disconnect power to the system.
2. Seat the O-ring in the groove on the bottom of the sensor.
3. Thread the wire pigtail and the threaded nipple through the
knockout. Ensure that the sensor sits flush with the J-box.
4. Secure the sensor to the J-box using a 1/2 in.-14 NPT locknut.
Tighten the locknut to ensure a proper seal with the J-box.
GLS-LCCT
1/2 in.-14 NPT nut
5. Make the Cresnet network connections inside the box using the
provided connectors.
6. Reconnect power to the system.
Qty
1
1
1
1
1
IP67 or better box
1/2 in. knockout
(0.885 in. (22.5 mm)
actual hole size)

Wiring Diagram - Indoor Mounting Location

GLS-LCCT inside
Cresnet to the
control system

Wiring Diagram - Outdoor Mounting Location

Wiring the
GLS-LCCT to the
CSP-LSP inside
the building
space.
To a properly
grounded point
in the building.
Wiring the
the J-box.
Terminal Wire Color
24: Red
Y: White
Z: Blue
G: Black
Wiring the
GLS-LCCT inside
the IP67 or
greater box.
Terminal Wire Color
24:
Y:
Z:
G:
Cresnet to the
control system
Red
White
Blue
Black