Operation manual of solar controller SR1568
Page 29 of 87
System 15: Solar system with 1 collector field, 2 tanks, valve switch loading tank,
thermal energy transferring between 2 tanks
Description:
The controller calculates the temperature
difference between collector sensor T1 and tank
sensor T2 or T4. If the difference is larger than or
identical to the adjusted switch-on temperature
difference, then the corresponding solar
circulation pump (R1) will be switched on, and
simultaneously valve R4 turns to the
corresponding tank and the tank will be loaded
until the switch-off temperature difference or the
maximum tank temperature is reached.
The priority logic effects prior loading of the tank
1.
Another temperature difference between heat
source T3 of tank 1 and object tank T4 can be
used to control the pump R2 to load the tank 2.
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