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Solar Powered Differential Temperature Controllers
4 models of Solar Differential Temperature Controller
DTC-1 solar differential temperature controller DTC-AT solar differential temperature controller DTC-D solar differential temperature controller
DTC-1
Basic model.
Fixed differential is
less than 1 degree F.
DTC-AT
Adjustable differential from 5 to 32F and max shut down or
over temp warning/shut down
 for storage tank adjustable from 80 to 200F.
DTC-D
Many features including audible freeze and high temp alarms,  stored max/min temperatures, digital accuracy.
SIMPLE HOOKUP DIAGRAM
Unit wires in between the solar panel and pump.
Sensors are attached to collector pipe, and storage tank wall.
Solar Differential Temperature Controller hookup diagram
Video overview of the product line

Improves the efficiency of solar heating systems!

Designed to control solar powered pumps in closed loop solar heating systems,  these differential temperature controllers will improve performance by preventing a solar powered pump from running if the collectors become cooler than the storage tank.  This typically occurs on overcast days and early and late on cold days when there is enough sunlight on the solar panel to power the pump, but the collectors are not hotter than the storage tank.


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