Sanyo SPW-C1155DXHN8 Technical Data & Service Manual page 45

4. Installation Instructions
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.
CAUTION
Refrigerant tubing (Existing tubing can be used.)
Outer dia.
ø6.35
ø9.52
ø12.7
ø15.88
ø19.05
4-12. Connect the Tubing
Except for 0705 and 1305 types, use the supplied connector tubing. (See figure below.)
0705 type (8 hp)
1
3 2
Refrigerant tubing
Gas tubing
1
Liquid tubing
2
3 Balance tube
1155 type (12 hp)
1
3 2
Refrigerant tubing
Gas tubing
1
Liquid tubing
2
3 Balance tube
1405 type (16 hp)
1
3 2
Refrigerant tubing
Gas tubing
1
Liquid tubing
2
3 Balance tube
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.
Tubing size (mm)
Thickness
t0.8
t0.8
t0.8
t1.0
over t1.0
Connection method Supplied parts used?
Brazing No
Flare connection No
Flare connection No
Connection method Supplied parts used?
Brazing Yes (ø19.05
Flare connection No
Flare connection No
Connection method Supplied parts used?
Brazing Yes (ø25.4
Flare connection No
Flare connection No
Design of W-2WAY ECO-i SYSTEM Unit Specifications
Outer dia.
ø22.22
ø25.4
ø28.58
ø31.8
ø38.1
ø41.28
0905 type (10 hp)
1
2
3
Refrigerant tubing
Gas tubing
1
Liquid tubing
2
3 Balance tube
1305 type (14 hp)
1
2
3
Refrigerant tubing
ø25.4) Gas tubing
1
Liquid tubing
2
3 Balance tube
ø28.58)
2-35
Thickness
t1.0
t1.0
t1.0
t1.1
over t1.15
t1.2
Connection method Supplied parts used?
Brazing Yes (ø19.05 ø22.22)
Flare connection No
Flare connection No
Connection method Supplied parts used?
Brazing No
Flare connection No
Flare connection No
1
2
3
4
5
6
7
8