It controls the water circulation system based on the difference of temperature between the solar collector and the storage tank or swimming pool the instrument contains two ntc type temperature sensors and a control output for activating the water circulation pump.
Differential temperature controller t2 t1.
When the compressor is off the fans remain on as long as the temperature difference t2 t1 is greater than fdt.
The fans are turned on again with the fdh differential.
When the temperature reaches the differential set value t2 t1 it automatically runs the circulation pump until the two temperature zones reach equilibrium according to your setting the second relay can be used to control electric heating when the solar heating has failed to reach the set temperature.
Fixed differential is less than 1 degree f.
Solar temperature controller keenso all purpose digital temperature difference controller differential thermostat with sensor probe for solar water heater ew 801ah ac 220v 5a 3 2 out of 5 stars 5 27 69.
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When the temperature reaches the differential set value t2 t1 it automatically runs the circulation pump until the two temperature zones reach equilibrium according to your setting the s relay can be used to control electric heating when the solar heating has failed to reach the set temperature.
It is possible limit the maximum temperature of the storage tank and also activate a freeze protection function.
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When the temperature reaches the differential set value t2 t1 it automatically runs the circulation pump until the two temperature zones reach equilibrium according to your setting the second relay can be used to control electric heating when the solar heating has failed to reach the set temperature.
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.
It provides protections against overheating and.
The n321s is a controller intended for solar water heating applications.
Tmp temperature based control.
The controller reads the temperatures of the storage tank t1 and of the collector t2 when this differential temperature t2 t1 is higher than a set value dt it will switch on the water pump.
Solar powered differential temperature controllers.