'21 • KX-T-380
CONTENTS
1. GENERAL INFORMATION ............................................................................ 1
1.1 Specific features ..................................................................................... 1
1.2 How to read the model name .................................................................. 2
1.3 Table of models ...................................................................................... 2
1.4 Outdoor units combination table ............................................................. 3
2. OUTDOOR UNIT ............................................................................................ 4
2.1 Specifications .......................................................................................... 4
2.2 Exterior dimensions .............................................................................. 12
2.3 Electrical wiring ..................................................................................... 14
2.4 Noise level ............................................................................................. 17
3. RANGE OF USAGE & LIMITATIONS ......................................................... 18
4. PIPING SYSTEM .......................................................................................... 28
5. SELECTION CHART .................................................................................... 31
6. WARNINGS ON REFRIGERANT LEAKAGE .............................................. 56
7. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ................ 57
7.1 Remote control (Option parts) ............................................................... 57
7.2 Operation control function by the wired remote control ......................... 60
7.3 Operation control function by the indoor control .................................... 65
7.4 Operation control function by the outdoor control .................................. 81
8. SYSTEM TROUBLESHOOTING PROCEDURE ........................................ 127
8.1 Basics of troubleshooting ..................................................................... 127
8.2 Explanation of troubleshooting ............................................................ 128
8.3 Contents of troubleshooting ................................................................. 130
8.4 Outdoor unit control PCB exchange procedure ................................... 193
8.5 Outdoor unit power PCB exchange procedure .................................... 194
8.6 Outdoor unit noise filter PCB exchange procedure ............................. 195
8.7 Outdoor unit inverter PCB exchange procedure .................................. 196
8.8 Check points of inverter outdoor unit ................................................... 200
9. APPLICATION DATA ................................................................................. 202
9.1 Installation of outdoor unit .................................................................... 202
9.2 Instructions for installing the branch pipe set ....................................... 251
9.3 Procedure to attach or remove the service panel ................................ 255
9.4 Voltage check point ............................................................................. 257
APPENDIX ......................................................................................................... 260
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