Imagination Solar

Simple, Affordable, Effective: Using the suns energy to heat water

The Control System PDF Print E-mail

The solar hot water system power supply provides both controller and pump with 21 volts DC. The pump will start when there is enough sunlight, which is measured by a sensor within the solar collector. The signal is interpreted by a microprocessor controller, which also controls the safety functions and a time delay.

Because the control operates on low voltage DC it is suitable for operating from a small PV (photovoltaic) panel (see picture below).

Deltasol controller for use
with mains powered systems


Solar Water Heating Panel with Photovoltaic Panel for Powering Pump





Control unit for use with PV powered systems

Control unit with cover removed.