SR882 operation manual
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4.3.2 EMON Switch-off temperature of collector emergency function
Select EMON submenu, “EMON 120
o
C” displays
►Press “SET” button, 120
o
C blinks.
►Press “+”“-” button, adjust the EMON temperature,
adjustable range: 80
o
C ～
(OF-3)
o
C
, factory set is
120
o
C.
►Press “SET” button, activate and deactivate this function, if the function is deactivated,
then “EMON ----“displays on the screen.
►Press “ESC” button to exit menu or wait for 20 seconds to exit automatically, set
parameters are saved automatically.
When these two signals of EM blink on the screen, it indicates this function is
activated, and at this moment temperature of tank reaches to its maximum limited
temperature
When only this signal of EM blinks on the screen, it indicates this function is also
activated, but temperature of tank doesn’t reach to its maximum limited temperature
4.3.3 CMX Maximum limited collector temperature (collector cooling function)
Function description:
The collector cooling function delays the vaporization of the heat transfer fluid. Shortly
before reaching the maximum temperature of the collector, the solar pump starts working to
cool down the heat transfer fluid by the heat losses occurring in pipelines and storage
cylinder.
When tank temperature rises to its preset maximal temperature, solar circuit pump is
ceased compulsively even the temperature difference is satisfied. If the sunshine is very
good, as a result collector temperature will rise continuously, when collector temperature
rises up to its maximal temperature, solar pump will be triggered again even at the case that
tank temperature is already to its maximal temperature. And solar pump works until the
temperature of collector is decreased by this reversed circulation or when tank temperature
rises its emergency temperature (95
o
C).
When displays, and blinks on the screen, it indicates that tank emergency
temperature reaches, tank temperature
is ≥95
℃
