Solar Hot Water Panel Differential Pump Controller Circuit

A small 10w solar panel charging a 12v sla battery is sufficient to run the controller.

Solar hot water panel differential pump controller circuit. The prices are different for the three kinds of solar panel. Most commercial designs use 230vac pumps which of course don t work when there is a power outage or there is no ac power at the site. Get great deals on solar water pumps kits. New we now have a mini functionally identical version of this controller available here.

The preferred system for most is to fit temperature sensors to the outlet from the solar water heating panel and to the hot water tank and have an electronic differential temperature thermostat decide whether the pump should be turned on. Differential thermostat at a reduced price. Gordy designed and built a microprocessor based differential controller to control the pump on his solar water heating system. This method of control has distinct advantages over some systems that run the pump until the differential approaches 0 c.

It achieves this by controlling a 12v dc pump which is switched on at a preset temperature differential of 8 c and off at about 4 c. This circuit is used to electronically control the pump in a solar water heating system full details of the operation of this circuit are provided in our article solar water heating pump controller. The circulation of heated water from solar hot water panels to a storage cylinder. 19 19 product ratings brushless solar water pump power panel kit fountain pool garden watering 180l h.

This circuit optimises the circulation of heated water from solar hot water panels to a storage cylinder. It achieves this by controlling a 12v dc pump which is switched on at a preset temperature differential of 8 c and off at about 4 c. Solar hot water panel differential pump controller this circuit optimises the circulation of heated water from solar hot water panels to a storage cylinder. Dc 48v 600w solar submersible bore hole deep well water pump mppt controller pump 3 high pressure garden irrigation kits hot 80m head pump kit 3 000l h us 551 99 551.

Simple solar water heating pump controller circuit. The material below provides a full description of the design notes on what drove the design issues to keep in mind if you use or alter the design for your system details on the hardware assembly and full software listings for the controller software. This is a solar water heating pump controller. Before installing the solar water pump and dc controller we should know how to select the solar panel for the solar water pumping system.

Take this time at home and knock out some home improvement tasks. This circuit optimises the circulation of heated water from solar hot water panels to a storage cylinder.