Overload Protection; Compressor Discharge Temperature Protection; Current Protection - Pioneer Diamante Pro Wyt009Alsi20Rl Service Manual

Note: The function setting:
Within 3 min of powering On the unit, set the unit to Cooling mode, temperature to
Press the Eco button 10 times consecutively within 8s and the Auto-Restart function activates.
5.2.10 Protection

5.2.10.1 Overload Protection

1. Overload Protection for Cooling or Dry Mode
1). If:
144 ℉, the unit stops operating for overload protection.
a. OPT≥
131 ℉ and after the compressor stopped for 3 min, the unit can be started to operate.
b. OPT＜
131 ℉, the compressor will be frequency limited/reduced for overload protection.
2). When OPT≥
3). If the unit has entered overload stop-working protection 6 times consecutively, the protection can't be recovered
unless pressing the On/Off button. The unit will show a failure code. Once the compressor runs more than 6 min
continuously, the counter of the overload stop-working protection will be reset to zero, restarting the counting
process. The failure and times for protection will eliminate immediately once the unit is switched Off or changed to
Fan or Heating mode.
Note: If the defective failure can't be recovered, the failure can't be eliminated even if the operation mode changes.
2. Overload Protection for Heating Mode
1). If:
144 ℉, the unit stops operating for overload protection.
a. IPT≥
131 ℉ and after the compressor stopped for 3 min, the unit can be started to operate.
b. IPT＜
131 ℉, the compressor will be frequency limited/reduced for overload protection.
2). When IPT≥
3). If the unit has entered overload stop-working protection 6 times consecutively, the protection can't be recovered
unless pressing the On/Off button. The unit will show a failure code. Once the compressor runs more than 6 min
continuously, the counter of the doverload stop-working protection will be reset to zero, restarting the counting
process. The failure and times for protection will eliminate immediately once the unit is switched Off or changed to
Fan or Heating mode.
Note: If the defective failure can't be recovered, the failure can't be eliminated even if the operation mode changes.

5.2.10.2 Compressor Discharge Temperature Protection

239 ℉, the unit stops operating for over-temperature protection;
1. If ODT≥
212 ℉ and after the compressor stopped for 3 min, the unit can be started to operate.
While ODT＜
212 ℉, the compressor will be frequency limited/reduced for over-temperature protection.
2. If ODT≥
3. If the unit has entered discharge over-temperature stop-working protection 6 times consecutively, the protection
can't be recovered unless pressing the On/Off button. The unit will show a failure code. Once the compressor runs
more than 6 min continuously, the counter of the discharge over-temperature stop-working protection will be reset to
zero, restarting the counting process. The failure and times for protection will eliminate immediately once the unit is
switched Off or changed to Fan mode.
Note: If the defective failure can't be recovered, the failure can't be eliminated even if operation mode changes.

5.2.10.3 Current Protection

1. If the A/C unit's working current is more than Limited current (I
reduced for over-current protection.
2. If the A/C unit's working current is more than Stopped current (I
compressor stops for 3 min can the unit be recovered.
Air Conditioner Service Manual
LC
86 ℉, and mid fan speed.
), the compressor will be frequency limited/
), the AC unit stops working. Only when the
SC
23