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INSTALLATION MANUAL
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 ........................................................... 3
3. INSTALLATION WORK
3.1. Selecting an installation location ........................... 3
3.2. Installation dimension ............................................ 4
3.3. Installation the unit................................................. 4
4. PIPE INSTALLATION
4.1. Selecting the pipe material .................................... 5
4.2. Pipe requirement ................................................... 6
4.3. Flare connection (pipe connection) ....................... 6
4.4. Installing heat insulation ........................................ 7
5. INSTALLING DRAIN PIPES ......................................... 7
6. ELECTRICAL WIRING
6.1. Electrical requirement ............................................ 9
6.2. Wiring method ....................................................... 9
6.3. Unit wiring .............................................................. 9
6.4. Connection of wiring ........................................... 11
7. FIELD SETTING
7.1. Setting the address.............................................. 11
7.2. Custom code setting ............................................ 12
7.3. Function setting ................................................... 12
8. TEST OPERATION
8.1. Test operation using PCB (Outdoor unit) ............. 13
8.2. Test operation using remote controller ................ 13
9. CHECK LIST ............................................................... 13
10. ERROR CODES ......................................................... 13
PART NO. 9373870036-02
For authorized service personnel only.
VRF SYSTEM
INDOOR UNIT
Duct Type
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