Watts Tekmar WiFi Snow Melting Control 670 User Manual

User Manual
WiFi Snow Melting Control 670
Introduction
The WiFi Snow Melting Control 670 operates hydronic and electric heating equipment designed to melt snow and/or
ice from roads and walkway surfaces. The control works with the tekmar Snow/Ice Sensor 090 or Snow Sensor 095 to
automatically detect snow or ice and operates a single boiler, steam valve, or electric cable to supply heat to the slab.
Boiler return protection is provided to non-condensing boilers using a mixing valve or variable speed injection mixing
pump. The tekmar Connect mobile application allows for remote operation and monitoring of the snow melting system
from anywhere in the world.
Manual Melting Operation
Manual Start and Timed Stop
• Start from Control display
• Start from tekmar Connect mobile app
• Start from manual switch contact
• Start from tekmarNet
®
Automatic Melting Operation
Automatic Start and Stop
• The Snow/Ice Sensor 090 or 094 is installed in the road or sidewalk.
OR
Automatic Start and Timed Stop
• The Snow Sensor 095 is installed on a pole outside the building.
The automatic sensors require regular cleaning at least once per year to ensure reliable operation. Clean the sensor with hot
soapy water and scrub with a nylon brush, then rinse and wipe clean with a cloth.
© 2016 tekmar 670 _ U - 10/16
User Switch
Snow Melting Replaces: New
Press Melt button to start melting operation
670 _ U
10/16