Daikin DPS - Page 3

Operator’s Guide .......................................82
Determining Unit State..................................82
Off Operating State ....................................82
Start Up Operating State ................................83
Recirculating Operating State ............................83
Fan Only ............................................83
Min DAT .............................................83
Heating..............................................83
Economizer ..........................................83
Mechanical Cooling ....................................84
Compressor Cooling Operation State ......................84
Inverter Compressor Cooling Operation ....................85
Compressor Control PI_Loop ............................86
Inverter Compressor Cooling State Descriptions..............87
Normal Cooling .......................................89
Determining Unit Status .................................91
Determining Control Mode ...............................91
Determining Cooling Status ..............................92
Determining Heat Status ................................92
Determining Supplemental Heat Status (Heat Pump only) ......93
Determining Economizer Status ..........................93
Determining Cooling Capacity ............................93
Determining Heat Capacity ..............................93
Determining Supplemental Heat Capacity (Heat Pump only) ....93
Determining Supply Air Fan Capacity ......................93
Determining RF/EF Capacity .............................93
Determining Outside Air Damper Position ...................94
Determining Emergency Mode ...........................94
Determining Application Mode ............................94
Determining Occupancy Status ...........................94
Determining Occupancy Mode............................95
Determining Occupancy Source ..........................95
Unoccupied Operation ..................................96
Scheduling ...........................................96
Heat/Cool Changeover .................................97
Control Temperature ...................................98
Dehumidication .....................................100
Modulating HGRH Control ..............................101
Energy Recovery .....................................101
Outside Air Damper Control .............................104
Cold Start Operation ..................................104
Airside Economizer ...................................106
Cooling.............................................107
Heating Control ......................................108
Modulating ..........................................108
Gas Heating .........................................109
Minimum Discharge Air Temperature (Min DAT) .............109
Discharge Air Temperature Setpoint Reset - Heating ......... 110
Fan Control ......................................... 111
Heat Pump Control ................................... 113
Heat Pump Operating State............................. 115
Heat Pump............................................ 116
Inverter Compressor Heating State Descriptions............. 116
Heating Off.......................................... 116
Normal Heat Pump Control ............................. 118
Normal Heating ...................................... 118
Pumpdown .......................................... 119
Standby for Restart ................................... 119
Defrost Control.......................................120
Defrost Operation– Heat Pump Units Only .................120
Defrost Operation State ................................120
4 Way Reversing Valve Control (4WV) – Heat Pump Units Only. 121
Receiver Solenoid Valve Control (SVR)....................121
Bypass Solenoid Valve Control (SVB) .....................121
Troubleshooting .......................................122
Inverter Board Fault Codes .............................122
Troubleshooting Module-to-Module Communication ..........123
ERROR CODE: E5 – Inverter Compressor Motor Lock ...... 130
ERROR CODE: E7 – Malfunction of Outdoor Unit Fan Motor . 132
ERROR CODE: H7 – Abnormal Outdoor Fan Motor Signal ..134
ERROR CODE: L1 – Defective Inverter PC Board ........135
ERROR CODE: L4 – Malfunction of Inverter Radiating Fin
Temperature Rise ..................................137
ERROR CODE: L5 – Momentary Overcurrent of Inverter
Compressor ......................................140
ERROR CODE: L8 – Momentary Overcurrent of Inverter
Compressor ......................................142
ERROR CODE: L9 – Inverter Compressor Starting Failure ..144
ERROR CODE: P1 – Inverter Over-Ripple Protection ......146
ERROR CODE: P4 – Malfunction of Inverter Radiating Fin
Temperature Rise Sensor ............................148
ERROR CODE: PJ – Faulty Field Setting after Replacing Main PC
Board or Faulty Combination of PC Board ...............151
ERROR CODE: U2 – Power Supply Insufcient or Instantaneous
Failure ...........................................152
Appendix .............................................154
Supply Fan Failure Codes ..............................154
Trending Selection Lists................................157
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