CONTENTS
Page
IMPORTANT! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-1.
Tools Required for Installation (not supplied)
1-2.
1-3.
Type of Copper Tube and Insulation Material
1-4.
Additional Materials Required for Installation
2-1.
3-1.
3-2.
3-3.
Placing the Unit Inside the Ceiling
3-4.
3-5.
3-6.
3-7.
3-8.
Placing the Unit Inside the Ceiling
3-9.
3-17. Wiring Instructions for Inter-unit Connections
3-28. Required Minimum Space for Installation and
Service
SUPPLEMENT
3-33. Installing the Remote Controller
4-1.
4-2.
4-3.
5-1.
5-2.
5-3.
5-4.
5-5.
7-1.
7-2.
7-3.
7-4.
7-5.
7-6.
7-7.
7-8.
Removing the Ceiling Panel for Servicing
8. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
■ Care and Cleaning
■ When Using Wired Remote Controller Instead of
Wireless Remote Controller
■ Tips for Energy Saving
5
1. GENERAL
This booklet briefly outlines where and how to install the
Page
air conditioning system. Please read over the entire set of
instructions for the indoor units and make sure all accessory
parts listed are with the indoor units before beginning.
1-1. Tools Required for Installation (not supplied)
1.
Flathead 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)
1-2. Accessories Supplied with Unit
See Tables 1-1 to 1-4.
Table
1-1
1-Way Cassette
1-2
2-Way Cassette
1-3
1-4
Floor Standing & Concealed Floor Standing
1-3. 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.
Cut each tube to the appropriate lengths +30 cm to 40 cm
to dampen vibration between units.
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.
CAUTION
Check local electrical codes and regulations before
obtaining wire. Also, check any specified instructions or
limitations.
1-4. 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
Table 1-1 (1-Way Cassette)
Part Name
gauge (Use the
packaging side
pad.)
Washer
Screw
Insulating tape
Flare insulator
Drain hose
Hose band
Packing
Drain insulator
●
Use 3/8" or M10 for suspending bolts.
●
Field supply for suspending bolts and nuts.
Table 1-2 (2-Way Cassette)
Type
Part Name
Figure
Flare insulator
Insulating tape
Vinyl clamp
Hose band
Packing
Drain insulator
Installation
gauge (Use the
packaging side
pad.)
(Black screw,
with washer)
Special washer
Drain hose
Putty
Table 1-3 (Wall Mounted)
22, 28, 36 types
Part Name
Truss-head
Tapping screw
Phillips
4 × 30 mm
Clamp
6
Q
'
ty
Remarks
Gauge A (Install on
1
tubing side.)
Gauge B (Install
1
on opposite side of
tubing.)
Suspension brackets,
8
upper/lower
For full-scale
4
installation diagram
For gas and liquid
2
(White)
tube flare nuts
1
For liquid tubes
1
For gas tubes
1
For drain joint
1
For drain joint
1
For drain joint
1
For drain joint
Q
'
ty
Remarks
For gas and liquid
2
tubes
For gas and liquid
2
(White)
tube flare nuts
For flare insulator
8
and drain insulator
For securing drain
1
hose
1
For drain joint
1
For drain joint
Gauge A (Install on
1
tubing side.)
Gauge B
1
(Install on opposite
side of tubing.)
For fastening
4
installation gauges
8
For suspension bolts
For securing drain
1
hose
For sealing
1
recessed portion of
power supply
Figure
Q'ty
8
1