Altek SR1128 - EMON Collector Maximum Switch-On Temperature (for Collector Emergency Close Function); CMX Maximum Limited Collector Temperature (Collector Cooling Function)

SR1128 operation manual
~18~
5.3.2 EMON Collector maximum switch-on temperature (for collector emergency
close function)
Setup steps:
To access main menu TEMP, then select submenu
EMON, “EMO 120
o
C” displays on screen
►Press “SET” button, parameter “120
o
C” blinks.
►Press “+” “-” button, to adjust this maximum
switch-on temperature, adjust range 80
o
C ~ (OF-3
o
C),
factory set is 120
o
C
►Repress “SET” button to activate and deactivate this function, if deactivate the function,
“EMON - - -” displays on 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 collector
emergency close function is activated, and at this moment temperature of
tanks reaches to its maximum limited temperature
When only this signal of EM blinks on the screen, it indicates collector emergency
close function is also activated, but temperature of tank doesn’t reach to its
maximum limited temperature
5.3.3 CMX Maximum limited collector temperature (collector cooling function)
Function description:
If hot water in tank isn’t used for long time, then the capacity that solar system absorbs solar
irradiation reduces, when tank temperature rises to its preset maximal temperature, solar
circuit pump is ceased compulsively even the temperature difference is satisfied. then when
more solar irradiation shines in, as a result collector temperature will rise continuously,
temperature of collector maybe rise up to the evaporated temperature of heat fluid, this
phenomenon names collector - overheat, it should be avoided. Through set the Maximum
limited collector temperature˄collector cooling function˅ it can delay 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 using the heat losses
occurring in pipelines and storage cylinder.
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 drops because of this reversed