TCL TCC-09C2HRH/DV, Руководство по обслуживанию, Страница: 15 / 75

TCL Air Conditioner Service Manual
15
5.2.10 Protection
5.2.10.1 Overload protection
1. Overload protection for Cooling or Dry mode
1). if:
a. OPT≥62 ℃ , unit stops working for overload protection.
b. OPT ＜ 55 ℃ , after compressor stopped for 3 min, can the unit be started to operate.
2). When OPT≥55 ℃ , the compressor will be frequency limited/reduced for over load protection.
3). If unit have 6 times of over load 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 start a new counting process.
The failure and times for protection will eliminate immediately once the unit to be switched off, on fan
mode or changed to be heating mode from others.
Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed.
2. Overload protection for Heating mode
1). If:
a. IPT≥62 ℃ , unit stops working for overload protection.
b. IPT
＜
55
℃
, after compressor stopped for 3 min, can the unit be started to operate.
2). When IPT≥55 ℃ , the compressor will be frequency limited/reduced for over load protection.
3). If unit have 6 times of over load 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 start a new counting process.
The failure and times for protection will eliminate immediately once the unit to be switched off, on fan
mode or changed to be heating mode from others.
Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed.
5.2.10.2 The compressor discharge temperature protection
1. If ODT≥115
℃
, unit stops working for over temperature protection;
While ODT ＜ 100 ℃ , & after compressor stopped for 3 min, the unit can be started to operate.
2. If ODT≥100 ℃ , the compressor will be frequency limited/reduced for over temperature protection.
3. If unit have 6 times of discharge 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
discharge over temperature stop working protection will be reset to zero and 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.
5.2.10.3 The current protection
1. If the unit A/C working current more than Limited current (I
LC
) , the compressor will be frequency limited /
reduced for over current protection.
2. When unit A/C working current more than Stopped current (I
SC
) , AC unit stops working. Only when the
compressor stops for 3 min can the unit be recovered operation.
3. If unit have 6 times of
over current stop-working protection continuously, this protection can’t be
recovered unless press ON/OFF button.
In the process of unit operation, once the compressor runs continuously more than 6 min, the counter of
stop-working protection will be reset to zero and re-start a new counting process.
Note: For different models, I
LC
and I
SC
have different programmed value.