Sanyo CM1972 Technical & Service Manual page 65

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 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
1-2. Accessories Supplied with Unit
Table 1
Parts Figure
Hex wrench
Labels for inter-unit
A B C D
cable and tube
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 A/C 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
Outer Dia.
KMS0772 1/4" (6.35 mm)
KMS0972 1/4" (6.35 mm)
KMS1272 1/4" (6.35 mm)
KMS1872 1/4" (6.35 mm)
KMS2472 1/4" (6.35 mm)
Q'ty Parts
1 Cushion rubber
Reducer
4 each
(3/8" 1/2")
Narrow Tube
Thickness Outer Dia.
0.0314" (0.8 mm) 3/8" (9.52 mm)
0.0314" (0.8 mm) 3/8" (9.52 mm)
0.0314" (0.8 mm) 3/8" (9.52 mm)
0.0314" (0.8 mm) 1/2" (12.70 mm)
0.0314" (0.8 mm) 5/8" (15.88 mm)
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
Figure Q'ty
Reducer
4
(1/2"
1972 1
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
Wide Tube
Thickness
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0314" (0.8 mm)
0.0393" (1.0 mm)
3
Parts Figure
2472
3/8")
3172
Packed in the outdoor unit.
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions or
limitations.
Q'ty
1
2