670
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(R) Home mobile app allows the 670 to be controlled remotely.
Features
- Mobile app for iOS and Android, automatic software updates
- Automatic snow/ice detection, Supports both inslab and retrofit aerial sensors
- Supports multiple zones with priority, Idling
- Auto storm, warm weather shut down
- Cold weather cut-out
- EconoMelt
- Slab protection
- Tandem snow/ice detection
- Equipment exercising
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) |
Markets | Multifamily Homes, Small Commercial Buildings |
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 |
Literature
-
- Applications - 670 (Sep 2016 - Present)
- Brochure - 670 Product Spotlight (Sep 2016 - Present)
- Brochure - Snow Melting Solutions
- Catalog - tekmar Controls
- Installation and Operation - 670 (May 2022 - Present)
- Installation and Operation - Watts Home App (Nov 2024 - Present)
- Job Record - 670 (Oct 2016 - Present)
- SB083 - Maximum Number of Thermostats on a tekmarNet Bus (Jan 2018 - Present)
- SB095 - Replacing Snow Melting Controls 664 and 667 with WiFi Snow Melting Control 670 (Oct 2016 - Present)
- Service Bulletin - Satellite Internet Connections to Wi-Fi Controls (July 2018 - Present)
- Specification Sheet - 670 (Sep 2020 - Present)
- User Manual - 670 (May 2022 - Present)
- Visio and AutoCAD Applications - 670
Archived
- Installation and Operation - 670 (Feb 2017 - Jan 2018)
- Installation and Operation - 670 (Feb 2020 - May 2022)
- Installation and Operation - 670 (Jan 2018 - Feb 2020)
- Installation and Operation - Watts Home App (Sept 2024 - Nov 2024)
- SB111 - WiFi FAQ, Setup and Troubleshooting Guide (March 2021 - May 2022)
- SB112 - Watts Home App – FAQs (March 2021 - May 2022)
- Specification Sheet - 670 (Sep 2016 - Jan 2018)
- User Manual - 670 (Feb 2020 - May 2022)