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CONTENTS
Page Page
IMPORTANT! . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Please Read Before Starting
Check of Density Limit
Precautions for Installation Using New Refrigerant
New refrigerant R410A cannot be used for earlier models
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1-1. Tools Required for Installation (not supplied)
1-2. Accessories Supplied
1-3. Type of Copper Tube and Insulation Material
1-4. Additional Materials Required for Installation
1-5. Tubing Length
1-6. Tubing Size
1-7. Straight Equivalent Length of Joints
1-8. Additional Refrigerant Charge
1-9. System Limitations
1-10. Installation Standards
1-11. Check of Limit Density
1-12. Installing Distribution Joint
1-13. Optional Distribution Joint Kits
1-14. Optional Solenoid Valve Kit
Example of Tubing Size Selection and
Optional Distribution Joint Kits
1-15.
Refrigerant Charge Amount
2. SELECTING THE INSTALLATION SITE . . . . 23
2-1. Indoor Unit
2-2. Outdoor Unit
2-3. Precautions When Installing in Heavy Snow
Areas
2-4. Dimensions of Wind Ducting
2-5. Dimensions of Snow Ducting
3. HOW TO INSTALL THE INDOOR UNIT . . . . . 28
4-Way Air Discharge Semi-Concealed Type
(X Type)
3-1. Preparation for Suspending
3-2. Suspending the Indoor Unit
3-3. Placing the Unit Inside the Ceiling
3-4. Installing the Drain Piping
3-5. Checking the Drainage
3-6. How to Install the Ceiling Panel
3-7. Special Remarks
Concealed Duct Type (U Type)
3-20. Required Minimum Space for Installation and
Service
3-21. Suspending the Indoor Unit
3-22. Installing the Drain Piping
3-23. Checking the Drainage
3-24. Increasing the Fan Speed
Concealed Duct High-Static Pressure Type
(D Type)
3-25. Required Minimum Space for Installation and
Service
3-26. Suspending the Indoor Unit
3-27. Installing the Drain Piping
3-28. Caution for Ducting Work
3-29. Indoor Fan Performance
Ceiling-Mounted Type (T Type)
3-30. Required Minimum Space for Installation and
Service
3-31. Suspending the Indoor Unit
3-32. Duct for Fresh Air
3-33. Shaping the Tubing
3-34. Installing the Drain Piping
Wall-Mounted Type (K Type)
3-35. Removing the Rear Panel from the Unit
3-36. Selecting and Making a Hole
3-37. Installing the Rear Panel onto the Wall
3-38. Removing the Grille to Install the Indoor Unit
3-39. Preparing the Tubing
3-40. Shaping the Tubing
3-41. Installing the Drain Hose
3-42. When Using Wireless Remote Controller
Instead of Wired Remote Controller
4. HOW TO INSTALL THE OUTDOOR UNIT . . . 64
4-1. Transporting
4-2. Installing the Outdoor Unit
4-3. Remove the Brackets Used for Transport
4-4. Routing the Tubing
4-5. Prepare the Tubing
4-6. Connect the Tubing
(XM Type)
3-8. Preparation for Suspending
3-9. Suspending the Indoor Unit
3-10. Placing the Unit Inside the Ceiling
3-11. Installing the Drain Piping
3-12. Checking the Drainage
3-13. How to Install the Ceiling Panel
1-Way Air Discharge Semi-Concealed Type
(A Type)
3-14. Suspending the Indoor Unit
3-15. Placing the Unit Inside the Ceiling
3-16. Installing the Drain Piping
3-17. Checking the Drainage
3-18. Electrical Power Wiring
3-19. How to Install the Ceiling Panel