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CONTENTS

Part 1. INDOOR UNIT...........................................................................1

1. Specifications................................................................................................2

2. Dimensions....................................................................................................4

2-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 ....................................4

2-2. Installation space requirement .........................................................................................5

3. Wiring diagram ..............................................................................................6

3-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 ....................................6

4. Capacity table................................................................................................7

4-1. Cooling capacity...............................................................................................................7

4-2. Heating capacity ..............................................................................................................9

5. Fan performance .........................................................................................11

5-1. Air velocity distributions..................................................................................................11

5-2. Airflow ............................................................................................................................17

6. Operation noise (sound pressure).............................................................20

6-1. Noise level curve............................................................................................................20

6-2. Sound level check point .................................................................................................22

7. Safety devices .............................................................................................23

8. External input and output...........................................................................24

8-1. External input.................................................................................................................24

8-2. External output...............................................................................................................26

8-3. Combination of external input and output.......................................................................28

8-4. Details of function ..........................................................................................................31

9. Function settings .......................................................................................56

9-1. Function settings on indoor unit .....................................................................................56

9-2. Function settings by using remote controller..................................................................57

10. Accessories.................................................................................................66

10-1.Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 .................................66

11. Optional parts .............................................................................................67

11-1.Controllers ....................................................................................................................67

11-2.Cassette grille ...............................................................................................................67

11-3.Others...........................................................................................................................68

Fujitsu ACUH09LUAS1 Design & Technical Manual

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