Operation manual of solar water controller SR530C8/SR530C8Q
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4.5.1 EM Emergency collector temperature
（
Emergency switch-off temperature of
collector
）
Function description:
When collector temperature rises up to the limited temperature (EM), this function is
activated, solar circulation pump is stopped in order to avoid the damage of system
other components caused by high temperature. The adjustable range of this EM
temperature is
（
120
℃～
200
℃）
, factory set is 130
℃
. When the temperature of
collector rises up to EM limited temperature, solar circuit pump is ceased, but when
collector temperature drops to 127
℃
, solar circuit pump restarts, and this function is
deactivated.
Setup steps:
to access main menu TEMP, then select submenu EM, “EM 130
℃
” displays on screen
►Press “SET” button, parameter “130
℃
” blinks.
►Press “+”“-” button, adjust EM temperature, adjustable range (120
℃～
200
℃
),
factory set is 130
℃
.
►Repress “SET” button, activate and deactivate this function, if deactivate the function,
“EM - - -” displays on screen.
►Press “ESC” button to exit menu or wait for 20 seconds to exit automatically, set
parameters are saved automatically.
When this two signals of EM blinks on the screen, it indicates this function
is in 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 this function is also
activated, but temperature of tank doesn’t reach to its maximum limited temperature
4.5.2 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 in order to cool down the heat transfer fluid using the heat losses occurring in
pipelines and storage cylinder.
