Solar working station operation manual SR881
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►Open the cover of display,
►Press and hold down, then switch-off the power of controller, wait several seconds,
then switch-on power again.
Buzzer makes “du-----“ 3 times, then release button.
Controller recovers to factory set, a new password can be reset now.
4.8 LOAD Recovery factory setting
Setup steps:
To access main menu LOAD,
►Press “SET” button, “YES” displays on the screen.
►Hold down “SET” button, buzzer makes “du-----“ 3 times,
then release
“SET” button. Controller recovers to factory
set, new paramters can be reset now.
►Press “ESC” button to exit set program or wait for 20 seconds to exit automatically.
4.9 On/OFF button
Under the standby status,
►Press button for 3 seconds; controller is switched off, “OFF” displays on the screen.
►Repress button, controller is switched-on again.
4.10 Holiday function
Description:
This function activates at night, solar liquid will flow from storage tank to collector to cool the
tank, and therefore to prevent high thermal loads problem of the solar system due to
completely heated storage tank. The function is activated at night between 10 pm and 6 am,
when the collector temperature drops 8
o
C below the storage tank temperature (T2), solar
circuit pump starts to work; when the temperature of collector is 2
o
C below the tank
temperature, and solar circuit pump is ceased.
Activate this function if:
You intend to be absent for an extended period (holiday)
No hot water is required for an extended period.
Note:
The function is deactivated when the temperature in lower section of storage tank
falls down to 35
o
C.