SR981S/SR982S operation manual of solar pump station
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197
o
C, factory set is 120
o
C
►Repress “SET” button to activate and deactivate this function, if deactivate the function,
“EMON - - -” shows on the screen.
► Press “ESC” button to exit menu or wait for 20 seconds to exit automatically, set
parameters are saved automatically.
When these 2 signs of collector emergency close function simultaneously blink
on the screen, it indicates the function is activated, and tank temperature reaches to its
maximum limitation.
When only this sign of collector emergency close function blinks on the screen, it
indicates the function is al
so activated, but temperature of tank doesn’t reach to its
maximum limited temperature
8.4.2 CMX Maximum limited temperature of collector (collector cooling function)
Description:
If hot water in tank isn’t used for long time, then the capacity that solar system absorbs
solar energy 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) 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 on 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 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 emergency stop function is activated, and tank temperature is
