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Tekmar 670 - WiFi Snow Melting Control, Boiler and Mixing, Electric

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. When connected to the Internet, the Watts® Home mobile app allows the 670 to be controlled remotely.

Features:

EconoMelt
Equipment exercising
Mobile app for iOS and Android, automatic software updates
Slab protection
Tandem snow/ice detection
Cold weather cut-out
Automatic snow/ice detection, Supports both inslab and retrofit aerial sensors
Auto storm, warm weather shut down
Supports multiple zones with priority, Idling

Specifications:

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
Analog Mixing Output: 0-10 V (dc) 500 ohms min impedance / 4-20 mA 1 k ohms max impedance
Boiler Modulation Output: 0-10 V (dc) 500 ohms min impedance / 4-20 mA 1 k ohms max impedance
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
Floating Mixing Output: 230 V (ac), 5 A
Injection Mixing Output: 230 V (ac), 2.4 A, 1/6 hp, fuse T2.5 A 250V
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
Snow Melting Control Type: Snow Melting Control

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Tekmar 670 - WiFi Snow Melting Control, Boiler and Mixing, Electric