Warmup CDP-2 Installation Instructions Download Page 1

The world’s 

best-selling electric floor heating brand

The world’s 

best-selling electric floor heating brand

WARMUP INC. 

USA: [email protected]
Tel.: 1-888-927-6333 
www.warmup.com

CANADA: [email protected] 
Tel.: 1-888-592-7687
www.warmup.ca

CDP-2 SNOW SENSOR CONTROL/DISPLAY PANEL 

INSTALLATION INSTRUCTIONS

CAUTION: Read all instructions carefully before installation. 
Save this Installation Manual for future reference.

GENERAL SAFETY INSTRUCTIONS

1.  THIS UNIT SHOULD BE INSTALLED BY QUALIFIED PERSONNEL ONLY!
2.  To avoid shock hazard do not open the front cover of the attached 

rain/snow sensor controller with power connected to the controller 
or any controlled equipment.

3.  Always open any circuit breakers and remove power from any high 

voltage electrical circuits installed in close proximity to or sharing an 
enclosure with the CDP-2 prior to removing the enclosure cover plate.

OVERVIEW
The 

CDP-2 Snow Sensor Control/Display Panel 

is used in conjunction with a DS-2C or DS-5 Rain/Snow 

Sensor Controller. The sensor is typically mounted on a roof, near a gutter, or in a similarly difficult location 
to reach. The CDP-2 provides a method of remotely monitoring and controlling the attached sensor. The 
user may monitor both the operating mode and the activation state of the sensor. The user may also set 
the sensor to prohibit automatic operation, to automatically operate, or to manually operate one snow 
melting cycle, then return to automatic operation. The CDP-2 derives its power from the snow sensor and 

requires no batteries or AC power

. With an operating temperature range of -40°C to +85°C the CDP-2 is 

designed for use either indoors or outdoors with proper protection from the elements.
INSTALLING THE CDP-2 CONTROL/DISPLAY PANEL
Installation requires a CS-1 Remote Control/Monitor Pigtail for the snow sensor and an appropriate 5- 
conductor cable for installation between the snow sensor and the CDP-2. The cable conductors must be 
tinned, stranded, minimum 22 AWG copper and overall shielding is required. An appropriate selection is 
Belden® 9941 or equiv. The CDP-2 can be installed as much as 500 feet away from the snow sensor if 
proper cable is used. Remove all power to the snow sensor, open its cover, and install the CS-1 pigtail. 
Install the 5-conductor cable between the sensor and the CDP-2 enclosure. Ground the “drain” wire on 
one end only and terminate the cable leads to the CS-1 following the table below:

CS-1 Color

Function

Your Color

CDP-2 TB-1

Black

Manual On

5

White

Return

6

Green

Standby/Reset

7

Orange

Deice On Mon

8

Red

Deice On Mon

9

The CDP-2 may be installed in a conventional single or multi gang standard electrical enclosure. If installed 
in a multi gang enclosure next to high voltage equipment the CDP-2 and its interconnecting cable must 
be isolated from high voltage wires and devices. Consult local electrical codes to determine the isolation 
methods required. Remove 2 in. (50mm) of outer insulation and shield from the 5-conductor cable. 
Remove ¼ in. (6mm) of insulation from the individual inner conductors. 
Following the above table press the clamp button on the terminal block, insert the bare lead into the 
clamp hole, then release.

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