Watts Tekmar WiFi Snow Melting Control 671

WiFi Snow Melting Control 671

The WiFi Snow Melting Control 671 is specifically engineered to oversee hydronic and electric heating systems, effectively melting snow and ice from road and walkway surfaces. It seamlessly integrates with the tekmar Snow/Ice Sensor 090 or Snow Sensor 095 for automatic detection of snow or ice, ensuring efficient operation. The control can manage a single boiler, steam valve, or electric cable to supply heat to the slab.

Key Features:

  • Automatic software updates keep the control system current with the latest features and enhancements.
  • Automatic snow/ice detection functionality ensures prompt response to changing weather conditions.
  • Compatible with both in-slab and retrofit aerial sensors for versatile snow and ice detection options.
  • Supports multiple zones with priority settings for optimized heating in designated areas.
  • Auto storm feature enhances system performance during inclement weather conditions.
  • Idling capability for efficient standby operation.
  • Warm weather shut down prevents unnecessary operation during warmer temperatures.
  • Cold weather cut off protects the system from damage during extreme cold.
  • EconoMelt feature helps manage energy consumption for cost-effective operation.


Agency Approvals CSA C US, meets Class B: ICES & FCC Part 15
Ambient Conditions -4 to 122 degree F (-20 to 50 degree C), less than 90 percent RH non-condensing, outdoor use permitted when installed inside an NEMA 3 enclosure
Communications Type WiFi 802.11n, 2.4 GHz, WPA2 encryption
Control Type Microprocessor control. This is not a safety (limit) control
Dimensions 6-5/8″ H x 7-9/16″ W x 2-13/16″ D (170 x 193 x 72 mm)
Display 3.5″ color touchscreen
Enclosure Material Blue PVC plastic
Enclosure NEMA Rating NEMA 1
Manual Melt Call Short or 0 – 32 V(ac)
Power Supply 115 V (ac)plus / minus 10 percent, 60 Hz, 20 VA
Relay 230 V (ac), 5 A, 1/3 hp
Sensor NTC thermistor, 10 k ohms at 77 degree F (25 degree Cplus / minus 0.2 degree C) Beta =3892