Tekmar Snow Melting Solutions Brochure

Tekmar 671 User Manual

Tekmar 671 Operation Manual

Tekmar 671 Application Brochure

Tekmar 671 Submittal

Tekmar 671 - WiFi Snow Melting Control, Pulse Width Modulation

The WiFi Snow Melting Control 671 operates hydronic and electric heating equipment designed to melt snow and/or ice from roads and walkways surfaces. The control works with 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. The Watts® Home mobile application allows for remote operation and monitoring of the snow melting system from anywhere in the world.

Features:

• Automatic software updates
• Idling
• Economelt
• Manual storm
• Automatic snow/ice detection
• Supports both inslab and retrofit aerial sensors
• Supports multiple zones with priority
• Cold weather cut off
• Warm weather shut down

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
• Relay Capacity: 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 Detector and Melting Control

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