Use and Care Manual
41
Code  Symbol  Function  Setting Range 
Default 
Setting 
HS  HS  
Humidity Setting 
Value 
5.0%RH ~99.0%RH   50.0%RH 
HD 
Humidification 
Difference Value 
1.0%RH ~20.0%RH   5.0%RH  
DD 
Dehumidification 
Difference Value 
1.0%RH ~20.0%RH   5.0%RH  
AH  AH  
Alarm High Humidity 
Limit 
5.0%RH ~99.0%RH   99.0%RH  
AL 
Alarm Low Humidity 
Limit 
5.0%RH ~99.0%RH   5.0%RH  
PT   
Compressor Delay 
Time 
0~10 minutes  0 minute 
CA  CA   Humidity Calibration  -20.0%RH ~20.0%RH   0.0%RH  
3.2 Setting Menu Instruction
4.Control Function Instruction
4.1 Setting Humidity Control Function ( HS ,HD, DD )
When the controller works normally, PV shows the measured 
humidity, meantime SV shows the humidity setting value, and 
automatically recognizes and converts for the humidification 
and dehumidification working mode .WORK1 is the humidifica-
tion output, furthermore the red led is the WORK1 humidifica-
tion output status indicator; WORK2 is dehumidification 
output, furthermore the green led is WORK2 dehumidification 
output status indicator.
When PV(measured humidity) ≤ HS(humidity setting value) – 
HD(humidification difference value), the controller will enter 
into the humidification state, the red led is on, WORK1 output 
works. When PV(measured humidity) ≥ HS(humidity setting 
value), the red led is off and the WORK1 output turns off.
When PV(measured humidity) ≥ HS(humidity setting value) + 
DD(dehumidification difference value), the controller will enter 
into the dehumidification state, the green led is on, WORK2 
output works; green led flashes, indicating that the dehumidi-
fication device is in delay protection state. When PV(measured 
humidity) ≤HS( humidity setting value), the green led is off and 
the WORK2 output turns off.
For example, when setting HS=50.0%RH,DD=5.0%RH,
HD=8.0%RH, measured humidity value ≥55.0%RH(HS+DD),the 
controller will enter the dehumidification state, when 
measured humidity value ≤50.0%RH, dehumidification will 
 Functions on screen
PV:
In normal mode, the measured humidity is displayed. In 
settings mode, it will display menu code.
SV:In normal mode, the humidity setting value is displayed. 
In setting mode, it will display the setting value.
 Output(WORK1/WORK2) Instruction
WORK1: 
The humidif ication output
WORK2: The dehumidif ication output
  Indicator LED:
●Red LED is on        WORK1 output is on.
●Green LED is on          WORK2 output is on.
●Green LED is blinking         WORK2 output is performing the 
function of compressor delay.
●Yellow LED is on          The controller is in the setting mode.
 Button Instruction
Please read the detail on 2.Button Operation Instructions  
below
Probe interface
Humidity probe can be insert into P1 or P2 interface.
 humidity probe
 If the controller display Er, you may get a false humidity 
probe, please try harder to insert the probe and rotate it to 
make good contact. If the problem is still persists, it is likely 
the internal probe wire has been damaged by the moisture or 
heat temperature.
 The probe and cable cannot be touched by the flame.
     Do not exceed the probe humidity or temperature range to 
avoid damaging
2  Button Operation Instructions
2.1 Restore Default Settings
Press " " button to power on, the buzzer will make a short 
call, indicating that all parameters of the user's humidity probe 
function return to the default setting value.
2.2 “ ” and “ ”Button Function in Normal Operation 
Mode
Press " ", PV shows HD, SV shows humidif ication difference 
value; press " ", PV shows DD, SV shows dehumidification 
difference value, and it will be back to the normal display if 
there is no operation for 3 seconds or pressing the "
SET" 
button. 
2.3 “SET” Button Function in normal operation mode 
Short press the “
SET” button to enter the quick setting 
humidity setting value mode. SV shows the humidity value 
and flashes, and short press “ ” or “ ” button to increase or 
decrease the setting value, long press “ ” or “ ”button to 
quickly increase or decrease the setting value, and press the 
"
SET" button again to confirm and exit. If there is no operation, 
it will automatically exit after 10 seconds and save the setting 
value.
2.4 Button Function in Setting Mode
When the controller is working normally, press the “SET” 
button for 2 seconds to enter the setting mode, the PV screen 
shows the first menu code “
HS” and the SV shows the 
corresponding setting value. Press “
SET” button to scroll 
down the menu item and save the parameters of the previous 
menu item. Press “ ” or “ ”button to change the current 
setting value. If in the setting state, there is no button 
operation within 30 seconds or long press "
SET" button for 2 
seconds, exit and save the setting state, return to normal 
operation mode.
 Output(WORK1/WORK2) Instruction
WORK1: The P1 heating/cooling output
WORK2: The P2 heating/cooling output
 Indicator LED:
●Red LED is on  WORK1 output is on.
●Red LED is blinking WORK1 output is performing the 
function of compressor delay.
●Green LED is on WORK2 output is on.
●Green LED is blinking WORK2 output is performing the 
function of compressor delay.
●Yellow LED is on The controller is in the setting mode.
 Button Instruction
Please read the detail on 2.Button Operation Instructions  below
Probe interface
Two temperature probes can be insert into P1 and P2 interface.
 Temperature probe
●If the controller display Er, you may get a false temperature 
probe, please try harder to insert the probe and rotate it to make 
good contact. If the problem is still persists, it is likely the 
internal probe wire has been damaged by the moisture or heat 
temperature. 
●The probe and cable cannot be touched by the flame. 
●Do not exceed the probe temperature range to avoid 
damaging.
2 Button Operation Instructions
2.1 Restore Default Settings
Press and hold the “ " button to power on, the buzzer will 
make a short call, indicating that all parameters of the user's 
temperature and humidity probe function return to the default 
setting value.
2.2 “ ” and “ ”Button Function in Normal Operation 
Mode
Press the “ ", PV shows the current temperature setting 
value , SV shows current humidification value; press “ ", PV 
shows current temperature value, SV the current humidification 
setting value , and It will be back to the normal display if there is 
no operation for 3 seconds orpressing the "
SET" button. 
2.3 “SET” Button Function in Normal Operation Mode 
Short press the “
SET” button to enter the quick setting 
temperature and humidity value mode. PV shows the current 
temperature setting value and flashes, and short press “ ” or 
“ ” button to increase or decrease the setting value, long 
press “ ” or “ ”button to quickly increase or decrease the 
setting value, Short press the “
SET” button again,SV shows 
the current humidity setting value and flashes, and short press 
“ ” or “ ” button to increase or decrease the setting value, 
long press “ ” or “ ”button to quickly increase or decrease 
the setting value and lastly press the "
SET" button again to 
confirm and exit. If there is no operation, it will automatically 
exit after 10 seconds and save the setting value.
2.4 Button Function in Setting Mode
When the controller is working normally, press the “SET” button 
for 2 seconds to enter the setting mode,the PV shows the first 
menu code“
 ”, SV shows the corresponding setting value. 
Press “
SET” button to scroll down the menu item and save the 
parameters of the previous menu item. Press“ ” or 
“ ”button to change the current setting value. Selected T to 
enter the temperature parameter modification mode; selected H 
to enter the humidity parameter modification mode. If in the 
setting state, there is no operation within 30 seconds or long 
press "
SET" button for 2 seconds, it will exit and save the 
setting state and return to normal operation mode.










