157 - Tekmar Difference Setpoint Control, Variable Speed, 24VAC, Microprocessor Control

157 - Tekmar Difference Setpoint Control, Variable Speed, 24VAC, Microprocessor Control

List Price: $513.00

$246.75

Availability: Non-Stock Item

157 - Tekmar Control Systems
DESCRIPTION

The difference setpoint control 157 is designed to use a variable speed pump to transfer heat from an intermittent heat source to a storage tank. It can be used in many different solar applications, including closed systems, drainback, or heat dump installations. Two sensors are used to measure the temperature at the source and at the storage location, and begin heat transfer when there is a positive difference between them. This product uses variable speed technology to operate a permanent capacitor wet rotor circulator to vary the rate at which heat transfer occurs.

• 120VAC powered pump outputs
• Certified to CSA and UL standards for use in the USA and Canada
• Displays and logs total amount of energy transfer in BTU or kWh
• Drainback capability
• External heat exchanger mode

• Freeze protection
• Heat dump operation
• Heat supplement mode
• Optional auxiliary sensor input to be used in heat dump and heat supplement modes
• Second On/Off pump

OR
Product Information

Additional Information

Manufacturer Tekmar Control Systems
Part Number 157
Short Description 157 - Difference Setpoint Control, Variable Speed, 24VAC, Microprocessor Control, White PVC Plastic, NEMA Type 1, 10K Ohm NTC Thermistor
Product Series Classic Series
Temperature Type Temperature Sensors
Enclosure Type NEMA 1
Sensor Type: Thermistor
Includes 071 Universal Sensor; 085 Solar Sensor
Voltage 24 Volts AC
Max Temperature 32 to 104
Applications For Indoor
Construction White PVC Plastic
Standards/Approvals CSA and CUS Approved for use in USA and Canada, Meets Class B: ICES & FCC Part 15
Warranty Information 3-Year Limited Warranty
Dimensions 7/8" x 2-7/8" x 4-3/4"
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Product Data Sheet Product Data Sheet
Technical Data Sheet Technical Data Sheet
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