Difference Setpoint Control - On/Off Zoom

Difference Setpoint Control - On/Off


Brand: Tekmar

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Application: Alternative Energy
Width: 2-7/8"
Height: 4-3/4"
Difference Setpoint
User Interface: Push Button
Depth (Inches): 7/8"
Ambient Conditions: Indoor Only: -20°-120°F < 90% RH non-condensing
Power Supply: 24V (ac)
24V (dc)
Relays: 240 V (ac) 10 A-1/3 hp-pilot duty 240 VA
Max Temp (F): 284°F
Min Temp (F): -76°F
Temperature Range (F): -76°-284°F
Control: Microprocessor Control
Weight (lbs): .7 lbs
Sensors: NTC Thermistor
10 k ohm @ 77°F
Enclosure Type: C

Description for Tekmar 156

Control Description The Difference Setpoint Control 156 is designed to operate an on/off pump to transfer heat from a heat source to a storage tank. The control operates based on a setpoint temperature difference (ΔT). The relay turns on when the ΔT rises above the setpoint and turns off when the ΔT falls below the setpoint less the differential. The Source Minimum and Storage Maximum settings turn off the relay when heat transfer is no longer desirable. Potential applications include using solar collectors or a wood boiler as a heat source.

LiteratureD 156, A 156, D 001, D 070
ControlMicroprocessor control; This is not a safety (limit) control
Packaged Weight0.8 lb. (360 g)
Enclosure C, White PVC plastic
Dimensions4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm)
ApprovalsCSA certified to CSA 22.2 No 24 and UL 873
Ambient ConditionsIndoor use only, -20 to 120¼F (-30 to 50¼C), < 90% RH non-condensing
Power Supply24 V ¼10% 50/60 Hz 2 VA
24 V (dc) ¼10% 0.04 A
RelayRelay 240 V (ac) 10 A 1/3 hp, pilot duty 240 VA
Sensors IncludedNTC thermistor, 10 kΩ @ 77¼F (25¼C ¼0.2¼C) +=3892 Two of Universal Sensor 071

Difference Setpoint Control - On/Off

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