Daikin LX10F10A - 1.2 Set Point and Protection Device

1-3
1.2 Set Point and Protection Device
Component Name Detector Symbol Setting Value Alarm
High pressure switch HPS
OFF≧2400kPa（24.47kg/cm
2
）
ON≦1900kPa（19.37kg/cm
2
）
E101
F101
Pressure control valve PCV Open≧2450kPa（25.0kg/cm
2
）−
Fusible plug − 95〜100℃（203〜212℉） −
Built-in thermal protector
for condenser fan motor
Q1M
OFF≧135℃±5℃（275℉±41℉）
ON≦86℃±15℃（187℉±59℉）
−
Built-in thermal protector
for evaporator fan motor
−
OFF≧145℃±5℃（293℉±41℉）
ON≦94℃±15℃（201℉±59℉）
−
Circuit breaker (with earth leakage
breaker)
CB 30A −
Inverter
circuit
Fin temperature
(IPM protection)
VOT ON＞90℃ E52C
Instantaneous overcurrent
NIDC
ON 51Ap±10%
E52E
F52E
Electronic thermal 1
(Compressor overcurrent
protection 1)
ON＞22.5A, OFF≦0.3A E523
Electronic thermal 2
(Compressor overcurrent
protection 2)
ON＞30A, OFF≦1A E524
Lightning detection
VDC
ON≧125r/s (actual r/s - designated r/s) E526
Power-supply voltage imbalance ON≧DC35V (Ripple voltage) E531
Undervoltage ON≦DC290V
E532
Overvoltage ON≧DC790V
●Fuse and Protection Circuit
Board Fuse Type Protection Circuit Alarm
I/O board
（EC2）
F1U
F10A 250V
fast-acting type
I/O board control power（DC13.5V, 5V, 3.3V） −
F2U
PCC1, PCC2, CFH, CFL, EFH, EFL
HSV, RSV, LSV, ESV
F703
F707
E115
E117
F3U Spare −
PT/CT
board
（EC7）
F11U 8A 600V PT/CT board control power −
Noise filter
board
（EC9）
F5U
12.5A 300A
Surge absorber 1 (Lightning protection) −
F6U Surge absorber 2 (Lightning protection) −
F7U Surge absorber 3 (Lightning protection) −
F8U 8A 600V Inverter control circuit −
I/O board
（EC2）
TH1
2.5A 72V
Automatic reset
RM (Remote Monitoring) circuit −
TH2 TransFresh circuit −