![background image](http://html.mh-extra.com/html/daikin/2mxs-n-series/2mxs-n-series_service-manual_501096006.webp)
SiUS121736EA
v
Table of Contents
7.11 Four Way Valve Abnormality .................................................................... 193
7.12 Discharge Pipe Temperature Control....................................................... 195
7.13 High Pressure Control in Cooling ............................................................. 196
7.14 Compressor Sensor System Abnormality ................................................ 197
7.15 Position Sensor Abnormality .................................................................... 199
7.16 CT or Related Abnormality ....................................................................... 201
7.17 Thermistor or Related Abnormality (Outdoor Unit) ................................... 203
7.18 Electrical Box Temperature Rise.............................................................. 205
7.19 Radiation Fin Temperature Rise .............................................................. 206
7.20 Output Overcurrent Detection .................................................................. 207
Thermistor Resistance Check .................................................................. 209
Indoor Fan Motor Connector Check ......................................................... 210
Power Supply Waveform Check............................................................... 211
Electronic Expansion Valve Check........................................................... 212
Four Way Valve Performance Check ....................................................... 213
Inverter Unit Refrigerant System Check ................................................... 213
Rotation Pulse Check on the Outdoor Unit PCB ...................................... 215
8.10 Installation Condition Check ..................................................................... 216
8.11 Discharge Pressure Check....................................................................... 216
8.12 Outdoor Fan System Check ..................................................................... 217
8.13 Main Circuit Short Check.......................................................................... 217
8.14 Capacitor Voltage Check.......................................................................... 218
8.15 Power Module Check ............................................................................... 219
Part 7 Trial Operation and Field Settings.................................... 220
1. Pump Down Operation ............................................................................221
2. Forced Cooling Operation .......................................................................222
3. Wiring Error Check Function ...................................................................223
4. Trial Operation ........................................................................................ 225
6. Silicone Grease on Power Transistor/Diode Bridge ................................ 249
Part 8 Appendix............................................................................ 250