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> New tekmar 664 snow detector & melting control 2 zone
New tekmar 664 snow detector & melting control 2 zone
LOOK AT ALL OF MY TEKMAR HVAC CONTROLS AND PARTS!
* Model: Snow Detector & Melting Control 664 - Two Zone, Two Stage Boiler, Mixing
* Control: Microprocessor PId control; This is not a safety (limit) control
* Enclosure A, blue PVC plastic
* Dimensions: 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm)
* Approvals: CSA C US, meets ICES & FCC regulations for EMI/RFI
* Ambient conditions: Indoor use only, 32 to 122°F (0 to 50°C), < 90% RH non-condensing
* Power supply: 115 V ±10% 50/60 Hz 600 VA
* Relays: 230 V (ac) 5 A 1/3 hp, pilot duty 240 VA
* Sensors Included: NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
Outdoor Sensor 070 and 3 of Universal Sensor 071
* Variable Pump: 230 V (ac) 2.4 A 1/6 hp, fuse T2.5 A 250 V
* Demands: 20 to 260 V (ac) 2 VA
* Optional Devices: tekmar type #: 011, 039, 040, 072, 073, 090, 091
* Brand New In Box - Factory Seal Still Affixed
* Compare On-Line at $1979.95
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The Snow Detector & Melting Control 664 is a microprocessor-based two zone snow melting control capable of providing priority. The 664 operates either a floating action output, variable speed output or a modulating output (4-20 mA) to provide slab and boiler protection. The 664 is also capable of staging and / or rotating either a single two stage boiler or two single stage boilers. With separate melting and idling setpoints for each zone, the 664 can accommodate different slab construction types.
