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Features
- Automatic snow/ice detection
- Warm Weather Cut Off
- Cold Weather Cut Off
- Accurate slab temperature control
- Slab Outdoor Reset
- Automatic snow'ice detection
- Outdoor reset to compensate for sudden outdoor temperature changes before the slab surface freezes
- Idling for faster pick up times
- Slab thermal shock protection
- Maximum Supply temperature limit for tubing protection
- Boiler shock protection
- Prevention of boiler flue gas condensation
- Viscosity compensation for faster slab pick up times
- Cold weather shut off (Manual)
- Minimum melting time (Manual)
- On time (Manual)
- Remote enable
- Slab outdoor reset
- Idling setpoint (Manual)
- Melting setpoint (Manual)
- Warm Weather Cut Off (Automatic Adjustment)
- Number of Zones (1)
- Pulse Width Modulation
- Exercise
- Temperature display
- Electric snow melting system
- Hydronic snow melting system using an on/off injection valve
- Hydronic snow melting by a boiler
Snow melting can be an expensive operation; however, proper energy saving controls can help reduce the operating costs. Safety is another consideration in snow melt system design. Most snow melt systems are designed to provide snow and ice free surfaces for the safety of pedestrial or vehicular traffic. These systems also require a control strategy that prevents damage to the slab and equipment.
Energy Saving Functions
Operational Functions
Hydronic Snow Melting System Protection Functions
The Snow Melting Control 650 is a microprocessor-based manual start / stop control that maintains a set temperature in a snow melting slab. The 650 uses pulse width modulation (PWM) to operate an on / off injection valve, pump, boiler or contactor for electric cables. Other 650 features include Slab Outdoor Reset, Warm Weather Cut Off, Cold Weather Cut Off, Snow Melting Setpoint and Snow Idling Setpoint. The control also has a built-in timer for timed melting events. Tekmar 070 outdoor sensor and Tekmar 072 slab sensor included.
Control Functions - Snow Melting Operation
Mixing Operation
System Protection
Display
Applications
Specifications
650

Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
3 Years
General Information
Switch Contact Type
Digital
System Type
Heating
Voltage Type
Low-Voltage
Power Source
Hardwired
Interface
Button
Dimensions
Product Height
4 3/4 Inches
Product Width
2 7/8 Inches
Product Depth
13/16 Inch
Product Weight
1.3 Pounds
Reviews
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Tekmar 650 Snow Melting Control Pulse Width Modulation - Tekmar 650
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