Contents
1 Safety Precautions ............................................................... 1
2 Outline of the Unit and Main Parts ....................................... 3
3 Preparative for Installation ................................................... 4
3.1 Standard Accessory Parts ............................................................ 4
3.2 Selection of the Installation Location ............................................ 5
3.3 Connection Pipe Requirement ..................................................... 7
3.4 Electrical Requirement ................................................................. 8
4 Installation of the Unit .......................................................... 9
4.1 Installation of the Indoor Unit ........................................................ 9
4.2 Installation of the Outdoor Unit ................................................... 12
4.3 Installation of the Connection Pipe ............................................. 13
4.4 Vacuum and Gas Leakage Inspection ....................................... 17
4.5 Installation of the Drain Hose ..................................................... 19
4.6 Installation of the Duct ................................................................ 23
4.7 Electrical Wiring .......................................................................... 25
5 Installation of Controllers ................................................... 29
6 Test Running ..................................................................... 30
6.1 Trial Operation and Testing ........................................................ 30
6.2 Working Temperature Range ..................................................... 32
7 Unit Function...................................................................... 33
7.1 Setting of Double Indoor Room Sensors.................................... 33
7.2 Checking of Outdoor Ambient Temperature .............................. 33
7.3 Fresh Air Control ........................................................................ 34
8 Troubleshooting and Maintenance ..................................... 34
8.1 Troubleshooting .......................................................................... 34
8.2 Routine Maintenance.................................................................. 35