PART NO. 9371022208-02
English
INSTALLATION MANUAL
VRF SYSTEM
INDOOR UNIT
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
2.4. Optional parts ......................................................... 3
3. INSTALLATION
WORK
3.1. Selecting an installation location ............................ 3
3.2. Installation dimensions ........................................... 4
3.3. Installing the unit .................................................... 5
4.
PIPE INSTALLATION
4.1. Selecting the pipe material ..................................... 7
4.2. Pipe requirement .................................................... 7
4.3. Flare connection (pipe connection) ........................ 7
4.4. Installing heat insulation ......................................... 8
5. INSTALLING DRAIN PIPES .......................................... 9
6. ELECTRICAL
WIRING
6.1. Electrical requirement .......................................... 11
6.2. Wiring method ...................................................... 11
6.3. Unit wiring ............................................................ 11
6.4. Connection of wiring ............................................. 13
6.5. External input and external output
(Optional parts) .................................................. 14
7. FIELD
SETTING
7.1. Setting the address .............................................. 16
7.2. Custom code setting ............................................ 17
7.3. Function setting .................................................... 18
8. DECORATION PANEL INSTALLATION ...................... 19
9. TEST
OPERATION
9.1. Test operation using PCB (Outdoor unit) ............. 19
9.2. Test operation using Remote Controller ............... 19
10. CHECK LIST ............................................................... 19
11. ERROR CODES ......................................................... 20
9371022208-02_IM_EN.indd 1
9371022208-02_IM_EN.indd 1
8/31/2012 2:41:51 PM
8/31/2012 2:41:51 PM