Operation
Under normal conditions, the controller measures the temperature in the solar collector
(T1) and the water tank (T2). If the temperature difference between the solar collector and the
tank is greater than the preset value, the pump starts and runs until the temperature in the solar
collector (T1) is less than T1+ half of the set value.
Example:
Temperature difference = 10 degrees (difference between T1 and T2)
T1 => reaches 60°C and T2 = 50°C
The controller starts the pump and runs it until T1 cools below 55°C (50 + (10 / 2)).
Normal mode
Without antifreeze mode
The controller starts the pump at the
Temperature Without Antifreeze
of 4°C, thus
preventing freezing. If the temperature in the solar collector exceeds 5°C, the controller will
return to normal mode. Antifreeze mode is enabled by default, so if your system is loaded
with antifreeze, uncheck the box.
Pump protection
If the pump has not been in operation for 8 days, the controller will start it and run it
for 3 minutes.
Levtech Service
& Prodtuction SRL
T2
T
1
Power ON
P
ump ON
Error
WATER TANK
TEMP
COLLECTOR
TEMP
SOLAR
CONTROL
This mode can be used to keep the tank temperature at 50 degrees Celsius. It does
this so that when the temperature of the solar collector drops below 18 degrees Celsius
during the night, the controller starts the pump and runs until the temperature of the tank
drops below 50 degrees Celsius.
Holiday
mode