not adjusted; however, it is available for temperature controlling.
•Setting Parameter: Press 
for 6 seconds. Start parameter menu and PA (menu password) flashing. Enter the password by pressing 
or
. Press 
again to choose the parameter. Press 
or 
then the parameter can be displayed and adjusted. After the adjustment, if no button has been pressed after 30 seconds, the system will restore the new parameter and go back to normal operations.
•Changing menu password (CPA): The CPA can be checked or changed only after the correct menu password has been entered. When it shows CPA, press 
or 
then the present password is displayed and can be changed to a new password. Press 
to confirm the new password. (Please memorize the new password or you can never adjust other parameters.)
•The factory default resumption: Press 
button for 1 second and then press 
button simultaneously for 6 seconds. The indicator will flash and then all parameters will be restored to back to the factory defaults. After 10 seconds, it will return to normal operation.
Parameter details
•Temperature controlling: After turning on for the delay time (e4), the compressor starts
operating when cold‐room temperature (set temperature +hysteresis), and will off when cold‐room temperature set temperature. To protect the compressor it can be re‐started, unless the time when the compressor stops every time is longer than the delay time (E4).
•Evaporator fan operating function: F5 is set “00”, parallel with compressor.
F5 is set “01”, continuous running (except defrost).
•Electric heater defrost: evaporator sensor temperature < defrost termination temperature
(F3), the heater will switch on and the defrost will start.
After a defrost interval, it begins the automatic defrost function. e.g.: When the evaporator sensor temperature < defrost termination temperature (F3), the defrost LED will turn on, the compressor and fan will stop, and the heater will start. When the evaporator sensor temperature defrost termination temperature or defrost duration (F1) ends, the heater and defrost will stop after the draining time (F6). The cold‐room temperature (set temperature + hysteresis), the compressor will starts and go back to refrigeration status.
When the defrost interval time (f2) is set”00”, the function of the automatics defrost will be cancelled. Temperature displayed when defrost: If F4 is set “01”, it displays the temperature when the defrost starts. After defrost, It will continue to display this temp for 20 min and the defrost LED will begin flashing. It will then come back to normal temperature.
•Controlling the evaporator fan after defrost: Controlling by time: When F7 is set “00” after defrost, the compressor works for F8 and then the fan restarts. After defrost and the first working mode, the fan will follow the mode of F5.
Controlling by temperature: When F7 is set “01” after defrost, when the evaporator temperature reaches F9, the fan restarts. After defrost and the first working mode, the fan will follow the mode of F5.
•Sensor failure work mode: If the cold‐room sensor is short circuited or overheated, “HH” will be displayed. If the cold‐room sensor is in an open circuit or the temperature is too low then “LL” is displayed. At that time the compressor will automatically go to a cycle of 45 min on and 15 min off. When the evaporator sensor fails or surpasses the displayed range, the defrost termination will be just controlled by the defrost duration.
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