TCL TCC-09C2HRH/DV, Service Manual, Page: 16 / 75

TCL Air Conditioner Service Manual
16
5.2.10.4 IPM overheating protection
1. When IPM temperature T
IPM
≥87
℃
, the compressor will be frequency limited / reduced for IPM over
temperature protection.
2. When T
IPM
≥95
℃
, the AC unit stops working for AC system protection.
If T
IPM
＜
87
℃
,and after compressor stopped for 3 min, can the unit be started to operate.
3. If unit have 6 times of IPM over temperature stop working protection continuously, this protection can’t
be recovered unless press ON/OFF button, and unit will show failure code.
In the process of operation, once the compressor runs continuously more than 6 min, the counter of over
load stop working protection will be reset to zero and re-start a new counting process.
The failure and times for protection will eliminate immediately once the unit to be switched off, or
changed to fan mode.
Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed.
5.2.11 Complementary
5.2.11.1 Energy saving (ECO)
Function effective on Cooling and Heating mode only.
On cooling mode, the set temperature range from 26
℃
to 31
℃
,on heating mode, from 16
℃
to 25
℃
.
5.2.11.2 TURBO
Function effective on Cooling, Heating, Fan and Auto modes, and fan speed operates on highest.
5.2.11.3 The communication control
If ODU PCB can’t get signal feedback from IDU for 2 min continuously, AC unit stops working and shows E0
error code as IDU/ODU communication failure.
Once the IDU & ODU communication recovery, and also the compressor stopped for 3 min already, can the
unit be recovered to operate.
5.3WIFI OPERATION MAUAL
5.3.1 The WIFI control logic
IDU PCB
IDU WIFI
module
Home
wireless
router
TCL
CLOUD
Internet
controller
TCL AC
APP
Remote
controller
ODU