Mitsubishi Electric TRANE NTXAMT12A112AA Manuel D'installation page 2

Table of Contents
NTXAMT12, 18, 24, 30, 36A112AA ............................................................................................................................. 4
1. Dimensions ................................................................................................................................................... 4
2. Inspect shipment ............................................................................................................................................ 5
3. Safety precautions ......................................................................................................................................... 6
3.1. Before installation and electric work ...................................................................................................... 6
Symbols used in the text .................................................................................................................... 6
3.2. Precautions for devices that use R410A refrigerant ............................................................................... 9
3.3. Before getting started ........................................................................................................................ 10
3.4. Before getting installed (moved)-electrical work .................................................................................... 11
3.5. Before starting the test run ................................................................................................................. 12
4. Indoor unit accessories ................................................................................................................................. 13
5. Selecting an installation site .......................................................................................................................... 14
6. Combining indoor units with outdoor units ...................................................................................................... 15
7. Installing the unit .......................................................................................................................................... 16
8. Duct connection ........................................................................................................................................... 17
9. Mount positions ............................................................................................................................................ 18
9.1. Vertical installations ........................................................................................................................... 18
9.2. Horizontal right installations ............................................................................................................... 18
9.3. Horizontal left installations ................................................................................................................. 20
Horizontal Mounting ......................................................................................................................... 29
10. Air filter ...................................................................................................................................................... 30
11. Refrigerant piping work ............................................................................................................................... 31
11.1. Insulation ........................................................................................................................................ 33
11.2. Piping size ...................................................................................................................................... 33
12. Drain connections ...................................................................................................................................... 34
13. Electrical wiring .......................................................................................................................................... 37
13.1. Remote controllers .......................................................................................................................... 38
13.2. Connecting line voltage .................................................................................................................... 40
Electrical Characteristics .................................................................................................................. 41
13.3. Condensate overflow safety switch connection (CN4F) ...................................................................... 42
13.4. Changing blower external static pressure .......................................................................................... 42
13.5. ERV (Energy Recovery Ventilation) .................................................................................................. 44
13.6. Humidifier ....................................................................................................................................... 46
Humidistat: ...................................................................................................................................... 47
14. Test run ..................................................................................................................................................... 48
14.1. Before test run ................................................................................................................................ 48
14.2. Test run .......................................................................................................................................... 48
14.3. Self-check ....................................................................................................................................... 49
[Output pattern A] Errors detected by indoor unit ................................................................................ 49
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.) ............................. 49
14.4. AUTO RESTART FUNCTION ........................................................................................................... 51
Indoor controller board ..................................................................................................................... 51
NTXAMT12, 18, 24, 30, 36A112AA ........................................................................................................................... 52
1. Dimensions ................................................................................................................................................. 52
2. Inspection du matériel livré ........................................................................................................................... 53
3. Mesures de sécurité ..................................................................................................................................... 54
3.1. Avant l'installation et les travaux électriques ........................................................................................ 54
Symboles utilisés dans le texte ......................................................................................................... 54
3.2. Précautions pour les dispositifs qui utilisent du frigorigène R410A ........................................................ 57
Specifications are subject to change without notice.
NTXAMT12, 18, 24, 30, 36A112AA
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