background image

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

DS-2C RAIN/SNOW SENSOR CONTROLLER
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, OPENED AND REPAIRED BY QUALIFIED 

PERSONNEL ONLY!

2.  To avoid shock hazard do not open the front cover with power 

connected to the DS-2C or any controlled equipment.

SELECTING A MOUNTING LOCATION FOR THE DS-2C

The interleaved grid on the top of the DS-2C is the precipitation or “moisture” sensor. The brass cylinder 

protruding from the bottom of the enclosure is the temperature sensor. For reliable rain and snow detection 

the unit must be mounted in a location that exposes the moisture sensor to a clear view of the sky.

The unit should not be mounted directly under eaves or overhangs. It should not be mounted so close to the 

ground that it may become buried in snow. For proper temperature detection the DS-2C must be mounted 

outdoors, away from furnace vents, dryer vents, and other sources of heat. Note that, when powered, the 

DS-2C moisture grid will always remain hot. This is normal. This allows the sensor to continuously melt 

snow and evaporate both rain and snow from the grid.

The DS-2C can be mounted by screwing 

the base conduit hub onto an appropriate 

size free-standing conduit or by using 

the mounting holes in each corner of the 

enclosure. 

DO NOT DRILL HOLES THROUGH THE 

ENCLOSURE FOR MOUNTING! 

This can allow 

water into the enclosure causing a potential 

shock hazard. It is recommended that a 

weatherproof junction box be mounted 

below the DS-2C for termination of the power 

and load pigtails to the building wiring.

Use Care When Replacing the Front Cover. Do Not Pinch the Gasket or Overtighten the Screws.

ALWAYS FOLLOW LOCAL AND NATIONAL ELECTRICAL CODES.

Summary of Contents for DS-2C

Page 1: ...cation that exposes the moisture sensor to a clear view of the sky The unit should not be mounted directly under eaves or overhangs It should not be mounted so close to the ground that it may become buried in snow For proper temperature detection the DS 2C must be mounted outdoors away from furnace vents dryer vents and other sources of heat Note that when powered the DS 2C moisture grid will alwa...

Page 2: ... temperature If selected the snow sensor will clear a trigger below 5 F 15 C even if snow is still falling It will resume normal operation above 9 F 13 C However the sensor will remember if it was triggered before the drop below 5 F or if snow was detected during the cold period If so the sensor will execute one Delay Off cycle when the temperature rises above 9 F in order to melt any snow left be...

Page 3: ...stant triggers from snow falling from trees or overhangs may be reduced by adjusting SENSITIVITY The Delay Off time can also be adjusted to provide clean melt off without excessive running time Fine adjustment can both save operating expense and provide more reliable operation However to keep reliability high always make adjustments in small increments Use Care When Replacing the Front Cover Do No...

Page 4: ...While not as convenient as directly supplying power for the load this allows you to operate the DS 2C from one voltage while controlling a load of a different voltage without adding an external relay or contactor For example the DS 2C can be powered from 120VAC but can directly control a 24VAC signal for a boiler system or 277VAC for heating wire The following diagrams show a possible wiring schem...

Page 5: ...eft behind when water is evaporated out of the moisture grid will eventually damage the grid rings The moisture grid can be easily replaced by ordering and installing an MG 5 Moisture Grid Assembly and following the procedure below THIS PROCEDURE SHOULD ONLY BE PERFORMED BY QUALIFIED PERSONNEL Open all power and load breakers connected to the DS 2C Open the front cover and remove the cable connect...

Page 6: ... of 6 inches from the base conduit hub Repair costs of a modified unit will be quoted as the unit must be returned to the original unmodified condition prior to return shipping The customer shall be responsible for all costs incurred in the removal or reinstallation and shipping of the product for repairs Within the limitations of this warranty inoperative units should be returned freight prepaid ...

Reviews: