2
EN
Specifications are subject to change without notice.
© 2022 Mitsubishi Electric US, Inc.
Contents
1. Dimensions ..................................................................................................................................................................
3
2. Inspect shipment .........................................................................................................................................................
4
3. Safety precautions .......................................................................................................................................................
4
3.1. Before installation and electric work ......................................................................................................................
4
3.2. Precautions for devices that use R410A refrigerant ..............................................................................................
5
3.5. Before starting the test run ....................................................................................................................................
6
3.3. Before getting started ............................................................................................................................................
6
3.4. Before getting installed (moved)-electrical work ....................................................................................................
6
4. Indoor unit accessories................................................................................................................................................
7
5. Selecting an installation site ........................................................................................................................................
7
6. Combining indoor units with outdoor units...................................................................................................................
7
7. Installing the unit..........................................................................................................................................................
7
8. Duct connection ...........................................................................................................................................................
8
9. Mount positions ...........................................................................................................................................................
9
9.1. Vertical installations ...............................................................................................................................................
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9.2. Horizontal right installations.................................................................................................................................10
9.3. Horizontal left installations ...................................................................................................................................
11
9.4. Downflow installations .........................................................................................................................................
15
10. Air filter.....................................................................................................................................................................
17
11. Refrigerant piping work ............................................................................................................................................
18
11.1. Insulation ...........................................................................................................................................................20
11.2. Piping size .........................................................................................................................................................20
12. Drain connections ....................................................................................................................................................21
13. Electrical wiring........................................................................................................................................................22
13.1. Remote controllers ............................................................................................................................................23
13.2. Connecting line voltage .....................................................................................................................................25
13.3. Condensate overflow safety switch connection (CN4F) ....................................................................................26
13.4. Changing blower external static pressure .........................................................................................................27
13.5. Humidifier ..........................................................................................................................................................28
13.6. Fan indication ....................................................................................................................................................29
