General; Tools Required For Installation (Not Supplied); Accessories Supplied With Unit; Optional Copper Tubing Kit - Panasonic CU-3KS19NBU Technical & Service Manual

1. General

This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instruc-
tions for the indoor and outdoor units and make sure all accessory parts listed are with the system 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

1-2. Accessories Supplied with Unit

Table 1
Parts Figure
Labels for inter-unit
A B C D
cable and tube
Reducer
(3/8" 1/2")

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 tub-
ing as detailed in Table 2.
Cut each tube to the appropriate lengths 1' to 1'4"
(30 cm to 40 cm) to dampen vibration between units.
Table 2
Model
CS-MKS7NKU, CS-MKS9NKU, CS-MKS12NKU
CS-MKS18NKU
CS-MKS24NKU
CS-MKS9NB4U, CS-MKS12NB4U
CS-KS18NB4UW

1-5. Additional Materials Required for Installation

1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See local codes.)
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
Q'ty Parts
4 each Cushion rubber
CU-3KS19NBU 1
Outer Dia.
1/4" (6.35 mm)
1/4" (6.35 mm)
1/4" (6.35 mm)
1/4" (6.35 mm)
1/4" (6.35 mm)
Figure
2. Foamed polyethylene insulation for the specified
copper tubes as required to precise length of tubing.
Wall thickness of the insulation should be not less
than 5/16" (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
Narrow Tube
Thickness
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0314" (0.8 mm)
3. Putty
4. Refrigeration lubricant
5. Clamps or saddles to secure refrigerant tubing
4
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
16. Vacuum pump (For R410A)
17. Manifold valve
Q'ty Parts
Reducer
4
(1/2" 3/8")
Packed in the outdoor unit.
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions or
limitations.
Wide Tube
Outer Dia.
3/8" (9.52 mm)
1/2" (12.70 mm)
5/8" (15.88 mm)
3/8" (9.52 mm)
1/2" (12.70 mm)
Figure Q'ty
1
CU-4KS24NBU
2
CU-4KS31NBU
Thickness
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0393" (1.0 mm)
0.0314" (0.8 mm)
0.0314" (0.8 mm)