background image

 

2

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, then exit the state of parameter setting. (The setting temp range is 

limited by the parameters F13 and F14, please refer to the advanced operation). Pressing the key “M” in the 
setting process means cancel and exit, but the setting value will not be saved. 

*

 

How to defrost manually? 

    When in the state of displaying current temperature, press the key “

” and hold it at least 5 seconds, 

then the controller enters the defrosting state. In defrosting state, press the key “

” and hold it at least 5 

seconds again, this can finish the defrosting forcibly. 

*

 

How to read the temperature of the evaporator sensor? 

When displaying current temperature, press “

” key, Controller will display defrosting temperature. 

Loose “

” key, then return to current temperature. Notice that if you press the key and hold it for 5 

seconds, the controller will enter or exit the defrosting state forcibly. 

*

 

How to refrigerate (or heat) forcibly? 

When displaying current temperature, the temperature is between “setting temperature

temperature 

difference” and “setting temperature

temperature difference”, the system may or not refrigerate, here you 

press the key “

” and hold it for 5 seconds, the controller will enter the refrigeration state forcibly when in 

the refrigeration state, and stop refrigeration when the temperature is below “setting temperature

temperature difference”; the controller will enter the heat state forcibly when in the heat state, and stop 
heating when the temperature is above “setting temperature

temperature difference”. 

 

9

 

Advanced Operation 

Press the key “M” and hold it for 5 seconds, and if you have set the password, the LED display the 

“PAS” to hint you to enter the password, you can use the key “

” and “

” to enter the password, if the 

password is correct, the LED will display the parameter code, use “

” or “

” to select the parameter 

code

Pressing the “set” key can make it to show the value of the parameter after select the parameter, here 

you use “

” or “

” to set the parameter(pressing the key and not release can add or minus rapidly), then 

press the “set” key to return to the state of showing parameter code after finishing setting. Pressing the key 
“M” can exit the parameter setting state when display the parameter code, pressing the key “M” means 
cancel when in the process of setting parameter, and the parameter will not be changed. 

Internal parameter code is showing below: 

Sort Code  Parameter Name 

Range 

Factory 

setting

Unit Remark 

F11 

Setting temperature 

F14 – F13 

/

 

The setting range is limited by 
F13 and F14   

F12 

Temperature difference 

0.1 – 20 

1.0 

/

 

Control the temperature 

difference, please refer to the 
temperature controlling 

F13 

Max setting temperature 

-58 - 302 

302 

/

 

F14 

Min setting temperature   

-58 – 302 

-58 

/

 

Notice: the controller will 

follow the rule of 
F14<F11<F13 forcibly, if you 
find out that one parameter can 
not be adjusted, it is because 
the parameter is limited by 
other parameters, you must 
first adjust other parameters     

F18 

Evaporator sensor adjustment 

-20 – 20 

0.0 

/

 

Adjust the evaporator sensor 
bias 

Temperature 

F19 

Temp sensor adjustment 

-20 – 20 

0.0 

/

 

Adjust the temperature sensor 
bias 

F21 

Compressor delay time 

0 -- 10 

min

 

Compressor 

F29 

Compressor controlling mode 
(temp controlling mode) 

COOL / HEAT 

COOL

COOL: refrigeration mode 
HEAT: Heat mode 

F31 

Defrost alternation time 
(Enable when F35=1 and 2) 

0.1 – 99.9 

12 

hour 

 

F32 

Defrost end temperature 

0.0 – 100 

15.0 

/

   

F33 

Defrost time 

1 -- 99 

15 

min

 

F34 

Dripping time 

0 -- 99 

min

 

Defrosting 

F35 

Defrost start mode 

OFF 

1 -- 2 

1 - 

OFF: defrost is off 
1: time alternation start 
2:time alternation start, the 
alternation is  compressor 
accumulative running time 

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