1
1
.
.
O
O
P
P
T
T
I
I
O
O
N
N
L
L
I
I
S
S
T
T
A.Connect the controlling cable with upper cover terminal as the figure above.
B.Connect the other attached controlling cable with indoor unit control board.
C.Connect the 2 controlling cables with attached connecting terminal as the figure below:
Controlling cable
YL
YL
BL BL
RD RD
BK
Controlling cable
BK
Firmly fasten the connection cord after connection.
GND
RXD
TXD
+12V
GND
RXD
TXD
+12V
5. Securing the lower cover.
Please secure the lower cover with the attached screws (2 pcs) on the wall or embedded box.
Custom parameters
The internal parameters of the wired controller can be set with the actual usage conditions.
The catalogue of custom-setting parameters is shown as follows:
Custom-
setting
parameter
code
Implication of code display
Description Remarks
3 boot
When “bo” blinks, press “ ” to restore to
factory default and quit parameter set.
6
Temperature display setting
0-Display the set temperature;
1-Display the indoor environment temperature
The
factory
setting
defaults to
0
7
Temperature measurement
unit display setting
0-Display in Celsius;
1-Display in Fahrenheit degree
8
Cooling only setting
0-Heat pump type air conditioner;
1-Cooling only air conditioner
10
Temperature limits revision
setting
0-Not permitted; 1-Permitted
11
Environment temperature
revision setting
0-Not permitted;1-Permitted
Self-setting parameter code
Function code
The method of setting the custom parameters
1
Press and hold " ", " " and " " buttons at the same time for 5s, to access the
parameter custom-setting mode, and the screen will display the self-setting parameter code
and icon .
Press the “ " button to select the custom-setting parameter code, and function code will
also be displayed on the LCD.
Press the " " (up) button or " " (minus) button to select the function code and press
2
3
"ON/OFF" button to confirm the setting.
NOTE:
It will directly exit custom setting mode without saving the setting if there is no operation within 30s.
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