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1. Introduction
This is three/five-core communication wired controller with WIFI controlled
function.
2. Description of the line controller
The wired controller communicates with the system control mainboard
through its mainboard, controls the operating state of the system through the
keys, and displays the working state of the entire system through LCD.
The appearance of this wired controller is shown in the cover page image.
3. Functional description
The wired controller detects communication after power-on. If the communi-
cation is successful, it displays normally. Otherwise, the "---" icon will flash. The
fault code E9 will appear if communication is not successful within 1 minute.
Functions of keys:
3.1 ON/OFF key
(1) Control the ON/OFF state of the system.
(2) When the wired controller enters the function setting, parameter setting
or engineering parameter setting, press the "ON/OFF" key to exit the setting
and return to the main display interface.
3.2 Mode key
Automatic mode→Cooling→Dehumidification→Heating→Fan→Automatic
mode
Cycle switching
3.2.1 Dehumidification mode: The temperature of the wired controller can
be set, and the fan speed cannot be set.
3.2.2 Fan mode: mandatory display of T1 temperature;
3.2.3 Forced cooling mode: set the 6th item in the engineering parameter
setting. In forced mode, press the shutdown or mode key to switch to other
modes.
3.3 Fan + and Fan -key
Adjust the indoor fan speed. Each time you press the fan speed key, the
fan speed will change as below:
Level 6 ← Level 4 ← Level 2 ← Automatic fan (3 Windshield indoor unit)
Level 4 ← Level 3 ← Level 2 ← Level 1← Automatic fan
(4 Windshield indoor unit)
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