4
Ⅴ、
Operation instruction
Panel:
What¡s the meaning of the index lights on the panel?
The function of the LED on the panel is showing below:
Index
Light
Name
Light
Flash
Temp
Setting
In the state of
temp setting
-
Refrigeratio
n
Refrigerating
Ready to refrigerate, in the state of
compressor start delay protection
Heat
Heating
Ready to heat, in the state of compressor
start delay protection
Defrost
Defrosting
Ready to defrost, in the state of compressor
start delay protection
Fan
Fan running
-
Alarm
-
Alarm state
The meaning of the LED display
The LED usually shows temperature, if it shows ¡SHr¡, it means the temperature
sensor is short, and ¡OPE¡ means the temperature sensor is open. The temperature
and the alarm code (Axx) will show alternately when in the alarm state.
The code is showing below:
Code
Signification
Explanation
A11
External alarm
Alarm from external alarm signal, please refer to the internal
parameter code ¡F50¡
A21
Water temperature
sensor error
Open or short
（
showing ¡OPE¡ or ¡SHr¡
）
A22
Outdoor machine
sensor error
Open or short
（
showing ¡OPE¡ or ¡SHr¡ when press the key
“↓”
）
A99
Over probation time
If you have set the probation time F87, the alarm occurs
when the accumulative running time is over probation time,
and the controller can not work.
How to set the temperature?
Press the key ¡set¡ for at least 2 seconds, then enter the state of temperature setting,
here the LED displays the setting temperature, then using ¡
¡ key or ¡
¡ key can
change the parameter
（
the key¡
¡adds 0.1¡C, the key¡
¡minuses 0.1¡C, press and
hold it over 0.5 seconds can add or minus rapidly
）
. After setting, press ¡set¡ again,
