Daikin FTYN25DV3B ATY20DV2 Service Manual

Contents

Daikin FTYN25DV3B ATY20DV2 Service Manual Manual pdf 4 page image

SiBE01-503Table of Contents iiiPart 6 Service Diagnosis............................................................. 511. Caution for Diagnosis............................................................................522. Problem Symptoms and Measures .......................................................533. Service Check Function ........................................................................544. Troubleshooting ....................................................................................574.1 Error Codes and Description ..................................................................574.2 Indoor Unit PCB Abnormality .................................................................584.3 Freeze-up Protection Control or High Pressure Control.........................594.4 Fan Motor or Related Abnormality (AC motor).......................................614.5 Thermistor or Related Abnormality (Indoor Unit)....................................624.6 High Pressure Control in Cooling ...........................................................634.7 Thermistor or Related Abnormality (Outdoor Unit).................................655. Check ....................................................................................................675.1 Thermistor Resistance Check ................................................................675.2 Installation Condition Check...................................................................685.3 Outdoor Unit Fan System Check............................................................695.4 Hall IC Check .........................................................................................69Part 7 Removal Procedure .......................................................... 711. Indoor Unit.............................................................................................721.1 Removal of Air Filter...............................................................................721.2 Removal of Front Grille ..........................................................................751.3 Removal of Horizontal Blades / Vertical Blades .....................................781.4 Removal of Electrical Parts Box / PCB / Swing Motor............................801.5 Removal of Heat Exchanger ..................................................................861.6 Install of Drain Plug ................................................................................891.7 Removal of Fan Rotor / Fan Motor.........................................................902. Outdoor Unit..........................................................................................942.1 Removal of Panels .................................................................................942.2 Removal of Bellmouth and Left Side Plate.............................................962.3 Removal of Electrical Device Mounting Plate.........................................972.4 Removal of Propeller Fan and Fan Motor ..............................................982.5 Removal of Sound Blanket.....................................................................992.6 Removal of Partition Plate....................................................................1012.7 Removal of Compressor.......................................................................103Part 8 Others ............................................................................. 1051. Others .................................................................................................1061.1 Trial Operation and Testing..................................................................1061.2 Pump Down Operation .........................................................................1061.3 Jumper Settings ...................................................................................107Part 9 Appendix......................................................................... 1091. Piping Diagrams..................................................................................1101.1 Indoor Units ..........................................................................................1101.2 Outdoor Units .......................................................................................1112. Wiring Diagrams..................................................................................1132.1 Indoor Units ..........................................................................................1132.2 Outdoor Units .......................................................................................113