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Tekmar Snow Detector & Melting Control - Two Zone, Two Boiler |
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Tekmar Snow Detector & Melting Control - Two Zone, Two Boiler
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)
- Boiler Protection
- CSA C US certified (approved to applicable UL standards)
- Cold Weather Cut Out
- Control up to 2 boilers
- Control up to 2 zones
- Equipment Exercising
- Manual Override
- Mixing control (floating, variable speed, or proportional)
- Optional priority zoning operation
- Remote display and adjustment capabilities
- Slab protection for the snow melting system
- Slab temperature control
- Temporary Idle
- Test sequence to ensure proper component operation
- Warm Weather Shut Down
Specifications
| Control |
Microprocessor control. This is not a safety (limit) control |
| Packaged weight |
3.5 lb. (1600 g) |
| Dimensions |
6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm) |
| Enclosure |
Blue PVC plastic, NEMA type 1 |
| Approvals |
CSA C US, meets class B: ICES & FCC Part 15 |
| Ambient conditions |
Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% Non-condensing |
| Power supply |
115 V (ac) ±10%, 50/60 Hz, 600 VA |
| Floating relays |
230 V (ac) 5 A, 1/6 hp |
| Stage/Zn/P1 relays |
230 V (ac) 5 A, 1/3 hp |
| Var. pump |
230 V (ac) 2.4 A max (FLA) 5 A max (LRA), fuse T2.5 A 250 V |
| Demands |
20 to 260 V (ac) 2 VA |
| Sensors |
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
| -Included |
Outdoor Sensor 070 and 3 of Universal Sensor 082 |
| -Optional |
tekmar type #: 039, 040, 072, 073, 090, 091, 094, 741 |
| Warranty |
Limited 3 Year Warranty |
Current Literature
Installation & Operation Manual Addendum |
Jun 2004 - Present |
664_B |
Product Submittal |
Jan 2011 - Present |
664_C |
Installation & Operation Manual |
Jul 2009 - Present |
664_D |
User Manual |
Jul 2001 - Present |
664_U |
Application Brochure |
Jul 2001 - Current |
664_A |
See Also
Part Number: 664
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