664
Discontinued - Replaced By: 670
Part of the Snow Melting Controls Series
Ordering Code: 664
UPC: 779655066401
664 Snow Detector & Melting Control
The Snow Detector & Melting Control 664 is designed to operate mechanical equipment to melt snow off of up to 2 outdoor slabs. It can be used in hydronic snow melting applications consisting of up to 2 zones and 2 boilers where each zone can operate at an independent temperature. This product uses a tekmar snow/ice detection sensor in order to automatically melt snow in a priority sequence while protecting the boiler plant with a mixing device. It is capable of controlling up to 2 boilers, a variable speed or modulating (4-20 mA) mixing device, a mix system pump, and 2 zone pumps.
Features
- Automatic snow detection and melt control (with 090 Sensor), Control up to 2 zones
- Control up to 2 boilers, Slab temperature control
- Mixing control (floating, variable speed, or proportional), Temporary Idle
- Optional priority zoning operation, slab protection for the snow melting system
| Specifications | |
|---|---|
| Agency Approvals | CSA C US, meets class B: ICES & FCC Part 15 |
| Ambient Conditions | Indoor use only, 32 to 122 degree F (0 to 50 degree C), RH less than or equal to 90 percent non-condensing |
| Control Type | Microprocessor control, this is not a safety (limit) control |
| Demand | 20 to 260 V (ac) 2 VA |
| Dimensions | 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm) |
| Enclosure Material | Blue PVC plastic |
| Enclosure NEMA Rating | NEMA 1 |
| Power Supply | 115 V (ac) plus / minus 10 percent, 50/60 Hz, 600 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 |