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3-4. Prepare the Tubing
● Material: Use C1220 phosphorous deoxidized copper as described in JIS H3300, "Copper and Copper Alloy Seamless Pipes
and Tubes." (For tubes that are ø7/8"
● Tubing size
Use the tubing size indicated in the table below.
● When cutting the tubing, use a tube cutter, and be sure to remove any burrs.
(The same applies to distribution tubing (optional).)
● When bending the tubes, bend each tube using a radius that is at least 4 times the outer diameter of the tube.
When bending, use sufficient care to avoid crushing or damaging the tube.
● For flaring, use a flare tool, and be sure that flaring is performed correctly.
Use sufficient caution during preparation of the tubing. Seal the tube ends by means of caps
CAUTION
or taping to prevent dust, moisture, or other foreign substances from entering the tubes.
Refrigerant tubing (Existing tubing can be used.)
Material O
ø1/4" (ø6.35)
t1/32" (t0.8)
ø3/8" (ø9.52)
t1/32" (t0.8)
ø1/2" (ø12.7)
t1/32" (t0.8)
ø5/8" (ø15.88)
t5/128" (t1.0)
ø3/4" (ø19.05)
over t5/128" (t1.0)
3-5. Connect the Tubing
● Use the supplied connector tubing. (See figure below.)
07263 type (8 hp)
1
3
2
Refrigerant tubing
Gas tubing
1
Liquid tubing
2
3
Balance tube
09663 type (10 hp)
1
3
2
Refrigerant tubing
Gas tubing
1
Liquid tubing
2
3
Balance tube
(
ø22.22 mm) or larger, use 1/2H material or H material. For all others use O material.)
Tubing size (in. (mm))
Material 1/2H • H
ø7/8" (ø22.22)
ø1" (ø25.4)
ø1-1/8" (ø28.58)
ø1-1/4" (ø31.75)
ø1-3/8" (ø34.92)
Connection method Supplied parts used?
Brazing
Yes (ø3/4"
Flare connection
Flare connection
Connection method Supplied parts used?
Brazing
Yes (ø1"
Flare connection
Flare connection
t5/128" (t1.0)
t5/128" (t1.0)
t5/128" (t1.0)
t3/64" (t1.1)
over t3/64" (t1.1)
ø7/8")
No
No
ø1-1/8")
No
No
22
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