and controlling of solar thermal energy systems having
a collector array and a storage tank. Apart from controlling
the solar system, the controller also has important system
monitoring and safety functions. This controller satisfies
all the requirements of a solar thermal system. The system
parameters and measured values can be viewed and
modified via a 16-digit LCD-Display. The controller has
two inputs for temperature measurement and an output
for controlling a speed controlled solar pump. Installation
mistakes are avoided by the automatic recognition of
temperature sensors by the controller. The components
delivered with the controller include a collector temperature
sensor and a storage tank temperature sensor in
the lower part of the storage tank to allow limiting of the
maximum storage tank temperature. Alternatively, the
controller can be used for loading a domestic hot water
or buffer tank through a solid fuel or multifuel burning
stove.
· Software-controlled collector cooling function
· Speed control of solar circuit pump
· Limitation of storage tank temperature
· Temperature sensor monitoring and fault
· Minimum and maximum displays of the