5. Temperature setting function: in temperature setting interface, press the arrow buttons
of “△” and “▽” to adjust the setting temperature within the range of 15 to 30℃. If the supply air
temperature is higher than the setting temperature, the electric heater will stop, and the p-heat and r-
heat icons will disappear. If the supply air temperature is equal to or lower than the setting tempera-
ture (temperature difference within 5 celsius), the first stage electric heater will start and the p-heat
icon appear, If the supply air temperature is 5 celsius lower than the setting temperature, the first and
the second stages electric heater will both start and the p-heat and r-heat icons appear. If the supply
air temperature is 2 celsius lower than the setting temperature, the second stage heater will stop, If
the supply air temperature is higher than the setting temperature, 2 stage heaters stop. Please note
that this function is only effective when the electric heater is connected to the PCB. And parameter
6. Setting parameters: long press the "MODE" button for more than 6 seconds under the power
on state to enter into the interface for parameters setting.
COMM
Parameter
number
Parameter
value
And then shortly press the "SET" button, the parameter number will increased accordingly. After choos-
ing the corresponding parameter item, press the arrow buttons of "△" and "▽" to adjust the parameter
values. When all setting is done, press the "SET" button to switch to the next item.
Attention:
1) After parameters setting, system need around 15 seconds to record, during this period power should
not be off.
2) Please refer to below valid parameters table to set the suitable parameters according to different re-
quests.
No. Contents Range Default Unit Record Position
1 Power to auto restart 0 - invalid, 1-valid 1 Main control
2 Automatic bypass function 0 - invalid, 1-valid 0
Main control
3
Bypass opening temperature
X
5-30 19
℃
Main control
4
Bypass opening temperature
range Y
2-15 3
℃
Main control
5 Electric heating setting
0 Electric heating off
1 Electric heating on
0
Main control
6 Conventional defrosting 0 - invalid, 1-valid 1
Main control
7 Defrost interval 15-99 30 Minute Main control
8
Defrost entering tempera-
ture
+5~-9 - 1
℃
Main control
9 Defrosting duration time 2-20 10 Minute Main control
10 CO2 display/ valid/ invalid 0 - invalid, 1-valid 0
11 CO2 sensor function CO2 concentration 1500 800-2000
12 Humidity display 0 - invalid, 1-valid 0
13 Humidity sensor function humidity setting 70
50-100
14 IP address 1-66 1
15 Fan speed control
1=3 speeds(AC)
2=10 speeds (DC)
1
17
Touch Screen Controller Introduction
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