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CONTENTS

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

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

2. Dimensions....................................................................................................3

2-1. Models: ARXG45KHTA and ARXG54KHTA ....................................................................3

2-2. Installation space requirement .........................................................................................4

2-3. Maintenance space requirement......................................................................................5

3. Wiring diagrams ............................................................................................6

3-1. Models: ARXG45KHTA and ARXG54KHTA ....................................................................6

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

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

4-2. Heating capacity ..............................................................................................................8

5. Fan performance ...........................................................................................9

5-1. Fan performance curve....................................................................................................9

5-2. Airflow ............................................................................................................................13

6. Operation noise (sound pressure).............................................................15

6-1. Noise level curve............................................................................................................15

6-2. Sound level check point .................................................................................................16

7. Safety devices .............................................................................................17

8. External input and output...........................................................................18

8-1. Preparation ....................................................................................................................18

8-2. External input.................................................................................................................19

8-3. External output...............................................................................................................20

9. Function settings .......................................................................................24

9-1. Models: ARXG45KHTA and ARXG54KHTA ..................................................................24

9-2. Function settings by using remote controller..................................................................26

10. Accessories.................................................................................................29

10-1.Models: ARXG45KHTA and ARXG54KHTA .................................................................29

11. Optional parts .............................................................................................30

11-1.Controllers ....................................................................................................................30

11-2.Others...........................................................................................................................31

Fujitsu ARXG54KHTA Design & Technical Manual

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