Operation manual of solar water controller SR530C8/SR530C8Q
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CFR signal displays on screen, it indicates that this function is in activated.
Note:
this function is only available in special solar system which using no-anti-freezing
liquid; this kind of system is only suitable in area where the ambient temperature is near
to 0
o
C in only few days. If safety requirement is very high , then anti-freezing is
necessary, we suggest to use suitable anti-freezing liquid to avoid frost problem.
4.5.5 SMX Maximum temperature of tank
Description:
When the DT between collector T1 and Tank 2 caters the switch-on DT of circulation,
solar pump is triggered, but in order to avoid the high temperature inside tank,
controller will check whether the temperature (T3) of top part of tank is higher than
maximum temperature of tank, when T3 is higher than preset SMX temperature, solar
pump is ceased even at the case that DT caters condition. When tank temperature
drops and is 2
o
C below the SMX, solar pump restarts when DT caters condition.
Setup steps:
To access main menu TEMP, then select submenu SMX, “SMX 60
℃
” displays on
screen.
►Press “SET” button, parameter “60
℃
”blinks
►Press “+”“―” button to adjust the value of
maximum temperature of tank1 adjustable
range is
（
2
℃～
95
℃）
, default set is 60
℃
►Repress “SET” button to activate and deactivate this function, if function deactivated,
“SMX - - -” displays on the screen.
► Press “ESC” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.
SMX signal displays on screen, it indicates that this function is in activated.
4.5.6 REC Tank re-cooling function
Description:
If tank temperature is over tank’s maximum temperature, and at the same time,
collector temperature is 5
o
C lower than tank temperature, then solar pump is triggered,
through this reversed circulation, tank temperature is reduced by heat loss occurs in
collector, solar pump keep in working until tank temperature drops below its
maximum temperature.
