3
English
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 and outdoor units and
make sure all accessory parts listed are with the sys-
tem before beginning. If the electric wiring diagram
does not appear in this manual, please check for the
diagram on the indoor unit.
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)
16. Vacuum pump (For R410A)
17. Manifold valve
1-2. Accessories Supplied with Unit
Table 1
1-3. Optional Copper Tubing Kit
Copper tubing for connecting the outdoor unit to the
indoor unit is available in kits which contain the narrow
and wide tubing, fittings and insulation. Consult your
nearest sales outlet or air conditioning workshop.
1-4. 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 as detailed in Table 2.
Cut each tube to the appropriate l30 cm
to 40 cm to dampen vibration between units.
Table 2
2. Foamed polyethylene insulation for the specified
copper tubes as required to precise length of tub-
ing. 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 5. Wiring Instructions for details.
CAUTION
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions or
limitations.
Model
Narrow Tube
Wide Tube
Outer Dia.
Thickness
Outer Dia.
Thickness
KMRV74/76
6.35 mm
0.8 mm
9.52 mm
0.8 mm
KMRV94/96
6.35 mm
0.8 mm
9.52 mm
0.8 mm
KMRV124/126
6.35 mm
0.8 mm
9.52 mm
0.8 mm
KRV184/186
6.35 mm
0.8 mm
12.70 mm
0.8 mm
KRV244/246
6.35 mm
0.8 mm
15.88 mm
1.0 mm
KRV96/126
6.35 mm
0.8 mm
9.52 mm
0.8 mm
4 each
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08-253 CMRV3146EH_OU EN 10/14/08 2:39 PM Page 3
