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INSTALLATION MANUAL
VRF SYSTEM
INDOOR UNIT
Wall Mounted Type
Contents
1. SAFETY PRECAUTIONS ............................................. 2
2. ABOUT THE UNIT
2.1. Precautions for using R410A refrigerant ..................2
2.2. Special tool for R410A ............................................ 2
2.3. Accessories ............................................................ 2
3. INSTALLATION WORK
3.1. Selecting an installation location ............................ 3
3.2. Installation dimension ............................................. 3
3.3. Installation the unit ................................................. 4
4. PIPE INSTALLATION
4.1. Selecting the pipe material ..................................... 6
4.2. Pipe requirement .................................................... 6
4.3. Flare connection (pipe connection) ........................ 6
5. FORMING THE DRAIN HOSE AND PIPE.................... 7
6. ELECTRICAL WIRING
6.1. Electrical requirement .......................................... 10
6.2. Wiring method ...................................................... 10
6.3. Unit wiring ............................................................ 10
6.4. Wiring ................................................................... 12
7. FIELD SETTING
7.1. Setting the address .............................................. 12
7.2. Custom code setting ............................................ 14
7.3. Function setting .................................................... 14
8. FINISHING
8.1. Connection pipe, cable and drain hose ................ 16
8.2. Installing front cover ............................................. 16
8.3. Piping outlet sealing ............................................. 17
9. TEST OPERATION
9.1. Test operation using PCB (Outdoor unit) ............. 17
9.2. Test operation using remote controller ................. 17
10. CHECK LIST ............................................................... 17
11. ERROR CODES ......................................................... 18
PART NO. 9371057033-02
For authorized service personnel only.
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