SR981S/SR982S operation manual of solar pump station
Page 76 of 85
Warning!
If the password is forgot, it is impossible to recover, but you can recover the
password to factory set, then you can reedit a password like above descript steps, doing
like following to recover to factory set.
►Switch-off the power of controller firstly,
►Press “ ” button and hold it down, then reconnect the power supply.
►Buzzer makes “du-----“ 3 times, then release “ ” button. Controller recovers to the
factory set password (factory set possword is 0000), a new password can be reset now.
8.8 REST Recovery to factory set
Setup steps:
To access main menu REST (recovery to factory set),
►Press “SET” button, “YES” displays on the screen.
►Hold down “SET” button, buzzer makes “du-----“ 3
times, then release “SET” button and wait for display
recovery to initial interface, that means 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.
8.9 “ON/OFF” Controller switch on/off button
Under standby status,
►Press “ ” button for 3 seconds, controller is closed, “OFF” displays on the screen
►Repress “ ” button, Controller recovers to open status.
8.10 Holiday function
Description:
This function activates in night, solar liquid will flow from tank to collector to cool the tank,
and as a result to prevent overheating problem of the solar system in the case that tank is
already heated completely. The function is activated at night between 10 pm and 6 am,
when the temperature of collector is 8
o
C below the tank temperature (T2), solar circuit
pump starts to work until the temperature of collector is 2
o
C below the tank temperature,
and then solar circuit pump is ceased.