Install Instructions

IS-WR-PM2C 1446 EDP#81018841 © 2014 Watts Radiant
USA: Tel: [phone] • Fax: [phone] • WattsRadiant.com
Canada: Tel: [phone] • Fax: [phone] • Watts.ca
Latin America: Tel: [phone] • Fax: [phone] • WattsRadiant.com
A Watts Water Technologies Company
Recommended Switch Settings
Function Trigger LTC DEL RAIN SNOW LD Off LD On
Snow sensor w/o LTC TT>AT OFF OFF OFF ON 2 Min 2 Min
Snow sensor w/LTC TT>AT>15°F (9.5°C) ON OFF OFF ON 2 Min 2 Min
Snow controller w/o LTC TT>AT OFF ON OFF ON 30-90 Min 2-6 Hr
Snow controller w/LTC TT>AT>15°F (9.5°C) ON ON OFF ON 30-90 Min 2-6 Hr
Do Not set the Rain switch to "ON". Possible overheating of the snow melt cables
may result.
Specifications
Supply Voltage 100 - 277 VAC
Trigger Temperature Range (TT) 34°F to 44°F (1°C to 6.5°C)
Configuration Modes
Snow Only
Rain Only
Snow or Rain
Delay Settings (post melting)
30 to 90 minutes
2 to 6 hours
Low Temperature Cutoff (LTC)
Prevents system operation when Ambient Temperature (AT)
is below 5°F (-15°C)
Operation Modes
Automatic
Standby/Reset
Manual
TEMPERATURE ADJUST
DELAY OFF ADJUST
SENSITIVITY ADJUST
CONFIGURATION SWITCH
GRID JACK
CONTROL/MONITOR JACK
SWITCH JACK
LOAD
INPUT POWER
CDP-2
Deice On
Snow Sensor
Control/Display Panel
Standby
Automatic
Manual On
SYSTEMS
AUTOMATED
ENGINEERING
Indoor monitoring
and control of the PM
2C is available with
the optional PM DP
snow melt sensor
remote control.
For more information
see the PM DP sub-
mittal or installation
instructions.
Limited Warranty: Watts Radiant (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within
the warranty period, the Company will, at its option, replace or recondition the product without charge.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. THE
COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special or consequential damages, including without
limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material,
damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control. This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance
or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above limitations may not apply to you. This Limited
Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY
IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF
ORIGINAL SHIPMENT.
At least once every four months the PM 2C should be powered down and the sensor grid
be wiped clean with clear water. Heavy deposits left behind by evaporated water may be
removed by gently scrubbing with a non-metallic scouring pad.
Sensor Maintenance
Circuit Breaker Panel
120 / 208 /
240 / 277 VAC
Ground
L1
L2 / N
Ground Fault type breaker
PM-2C
Snow Control
Waterproof
Junction Box
Gr
Ground
Yel
L2 / N
Blu
Brn
Yel
L1
Gr
Wh
Wh
ProMelt
Mat/Cable
PM-2C ControlProMelt Display Panel
WARNING: This product contains chemicals known to the State of California to cause cancer
and birth defects or other reproductive harm. For more information: www.watts.com/prop65