PART NO. 9371022055-02
English
INSTALLATION MANUAL
VRF SYSTEM
INDOOR UNIT
Compact Cassette Type
For authorized service personnel only.
Contents
1. SAFETY PRECAUTIONS ............................................. 2
2. ABOUT THE UNIT
2.1. Precautions for using the R410A refrigerant .......... 2
2.2. Special tool for R410A ............................................ 2
2.3. Accessories ............................................................ 2
3. INSTALLATION WORK
3.1. Selecting an installation location ............................ 4
3.2. Installation dimensions ........................................... 4
3.3. Discharge direction setting ..................................... 5
3.4. Installing the unit .................................................... 5
4.
PIPE INSTALLATION
4.1. Selecting the pipe material ..................................... 6
4.2. Pipe requirement .................................................... 6
4.3. Flare connection (pipe connection) ........................ 6
4.4. Installing heat insulation ......................................... 7
5. INSTALLING DRAIN PIPES .......................................... 8
6. ELECTRICAL WIRING
6.1. Electrical requirement .......................................... 10
6.2. Wiring method ...................................................... 10
6.3. Unit wiring ............................................................ 10
6.4. Connection of wiring ............................................. 12
7. FIELD SETTING
7.1. Setting the address .............................................. 13
7.2. Custom code setting ............................................ 14
7.3. Function setting .................................................... 14
8. DECORATION PANEL INSTALLATION
8.1. Remove the intake grille ....................................... 16
8.2. Install panel to indoor unit .................................... 16
8.3. Attach the intake grille .......................................... 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
