19
Function and Control
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 " " and "
" button for 5 seconds to enter the AP mode to
reconfigure the network.
2.If the Wi-Fi feature is not provided, the Wi-Fi icon and fault code are not displayed.
