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1. GENERAL
This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of
instructions for the indoor unit and make sure all accessory parts listed are with the system before beginning.
1-2. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately
from a local source, you will need:
1. Deoxidized annealed copper tube for refrigerant
tubing.
2. Foamed polyethylene insulation for copper tubes as
required to precise length of tubing. Wall thickness
of the insulation should be not less than 8 mm.
3. Use insulated copper wire for field wiring. Wire
size varies with the total length of wiring. Refer to
4. Electrical Wiring for details.
1-3. Additional Materials Required for Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See your local codes.)
3. Putty
4. Refrigeration tubing lubricant
5. Clamps or saddles to secure refrigerant tubing
6. Scale for weighing
CAUTION
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions
or limitations.
4
IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Please Read Before Starting
Check of Density Limit
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-1. Tools Required for Installation (not supplied)
1-2. Type of Copper Tube and Insulation Material
1-3. Additional Materials Required for Installation
2. HOW TO INSTALL THE UNIT . . . . . . . . . . . . . .5
2-1. Duct for fresh air
3. TEST OF THE SYSTEM AND CONTROL OF THE
AIR VOLUME TO THE OUTLET GRILLES . . . .7
CONTENTS
Page
Page
1-1. Tools Required for Installation (not supplied)
1. Standard screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Carpenter’s level
6. Sabre saw or key hole saw
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . .8
4-1. General Precautions on Wiring
4-2. Recommended Wire Length and Wire Diame-
ter for Power Supply System
4-3. Wiring System Diagrams
5. HOW TO PROCESS TUBING . . . . . . . . . . . . . .12
5-1. Connecting the Refrigerant Tubing
5-2. Connecting Tubing between Indoor and Out-
door Units
5-3. Insulating the Refrigerant Tubing
5-4. Taping the Tubes
5-5. Finishing the Installation
6 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . .16