Description
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
Specs
| 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 Contro |
