Sanyo SPW-C0705DXHN8 - Page 45

2-35
Design of W-2WAY ECO-i SYSTEM Unit Specifications
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8
4. Installation Instructions
Connection method Supplied parts used?
Gas tubing
Liquid tubing
Balance tube
Brazing
Flare connection
Flare connection
No
No
No
1
2
3
1
2
3
Refrigerant tubing
0705 type (8 hp)
1
2
3
Ye s ( ø 19.05 ø 25.4)
Connection method Supplied parts used?
Gas tubing
Liquid tubing
Balance tube
Brazing
Flare connection
Flare connection
No
No
1
2
3
Refrigerant tubing
1155 type (12 hp)
1
2
3
Yes (ø25.4 ø28.58)
Connection method Supplied parts used?
Gas tubing
Liquid tubing
Balance tube
Brazing
Flare connection
Flare connection
No
No
1
2
3
Refrigerant tubing
1405 type (16 hp)
Ye s ( ø 19.05 ø 22.22)
1
2
3
Connection method Supplied parts used?
Gas tubing
Liquid tubing
Balance tube
Brazing
Flare connection
Flare connection
No
No
1
2
3
Refrigerant tubing
0905 type (10 hp)
1
2
3
Connection method Supplied parts used?
Gas tubing
Liquid tubing
Balance tube
Brazing
Flare connection
Flare connection
No
No
No
1
2
3
Refrigerant tubing
1305 type (14 hp)
4-11. 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 ø22.22 or larger, use 1/2H material or H material. For all others use O material.)
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
or taping to prevent dust, moisture, or other foreign substances from entering the tubes.
Refrigerant tubing (Existing tubing can be used.)
Tubing size (mm)
Outer dia. Thickness Outer dia. Thickness
ø6.35 t0.8 ø22.22 t1.0
ø9.52 t0.8 ø25.4 t1.0
ø12.7 t0.8 ø28.58 t1.0
ø15.88 t1.0 ø31.8 t1.1
ø19.05 over t1.0 ø38.1 over t1.15
ø41.28 t1.2
4-12. Connect the Tubing
Except for 0705 and 1305 types, use the supplied connector tubing. (See figure below.)
CAUTION