Operation Instruction
3
6
Set
Parameter
Code
Parameter Name
Parameter Range
and Meaning
Description
A01
Setting for a master
indoor unit
00: do not change
settings
01: enabled
1.When set to 00, the current
master and slave states are not
changed;
When set to 01, the current indoor
unit will be changed to the master.
A02
Refrigerant recycling
00: invalid
01: valid
When set to 01, the wired
controller issues the after-sales
refrigerant recycling instructions.
A15
Timer setting
00: countdown timer
01: scheduled timer
A16
Scheduled timers
repetition validity
00: repetition invalid
01: repetition valid
A19
Set temperature in
auto cooling mode
17°C to 31°C
A20
Set temperature in
auto heating mode
16°C to 30°C
LL
Test
00: not testing
01: testing
Wi-Fi Connection
The wired controller will perform self-tests on startup to check whether the Wi-Fi feature is
provided.
1. If the Wi-Fi feature is provided, the "
" icon will display, and the following applies:
The wired controller displays " " and flashes when there is no connection with a server.
When connected to a server, the wired controller will display an icon according to the
connection signal strength with the server. When the wired controller cannot detect a Wi-
Fi module or when the Wi-Fi module is faulty, the Wi-Fi icon will not be displayed and the
temperature display area will show the fault code "A4" for 1 second every 10 seconds.
When any button is pressed, the fault code "A4" is hidden and the wired controller
displays as normal. When the wired controller is inactive for 5 minutes, the fault code
"A4" is displayed again as mentioned above.
Button operations
To reselect a hotspot and server, proceed as follows:
Press and hold the "
" button for 5 seconds to enter the STA mode to reconfigure the
network.
2. If the Wi-Fi feature is not provided, the Wi-Fi icon and fault code are not displayed.
