Daikin VRV Inverter K Series - Functions PLUS Series

SiE-05C
Functions PLUS Series 199
Part 6
Functions
PLUS Series
1. Outdoor Unit Refrigerant System Diagrams........................................200
1.1 Function Unit ....................................................................................... 200
1.2 Outdoor Unit ........................................................................................ 208
2. Function of Thermistors and Pressure Sensors..................................216
2.1 Function of Thermistors and Pressure Sensors .................................. 216
3. List of Safety Devices and Functional Parts Setting Values ...............219
3.1 Outdoor Unit ........................................................................................ 219
3.2 Function Unit ....................................................................................... 219
4. Outline of Control ................................................................................220
4.1 Starting Control.................................................................................... 220
4.2 Pressure Equalizing Control Before Starting....................................... 224
4.3 Oil Return Control................................................................................ 225
4.4 Defrost (For Heat Pump System) ........................................................ 227
4.5 Oil Equalization Control....................................................................... 228
4.6 Heating Pump Down Residual Operation (For Heat Pump System).. 232
4.7 Compressor Oil Temperature Protection Control ................................ 233
4.8 Low Pressure Protection Control Step ................................................ 234
4.9 High Pressure Control Step................................................................. 236
4.10 Discharge Temperature Protection Control......................................... 237
4.11 Cooling Overload Control .................................................................... 238
4.12 Inverter Protection Control................................................................... 238
4.13 Standby by Outdoor Temperature When Heating
(For Heat Pump System)..................................................................... 238
4.14 Low Outdoor Temperature Control When Cooling .............................. 239
4.15 Low Noise and Demand Control.......................................................... 240
4.16 Compressor Capacity Control ............................................................. 241
4.17 Backup Operation................................................................................ 243
4.18 Emergency Operation.......................................................................... 244
4.19 Pump Down Operation ........................................................................ 248
5. Flow of Refrigerant in Each Operating Mode......................................251
5.1 Heat Pump Model................................................................................ 251
5.2 Cooling Only Model ............................................................................. 264
SI-05C.BOOK Page 199 Monday, November 6, 2000 4:13 PM
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