Sanyo ECO-i AHX0752 Technical Data Manual page 48

4. Installation Instructions
4-12. 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 ø1" (ø25.4 mm) 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 suffi cient care to avoid crushing or damaging the tube
For fl aring, use a fl are tool, and be sure that fl aring is performed correctly.
CAUTION
Refrigerant tubing (Existing tubing can be used.)
Outer dia.
ø1/4" (ø6.35)
1
ø3/8" (ø9.52)
ø1/2" (ø12.7)
ø5/8" (ø15.88)
4-13. Connect the Tubing
2
Use the supplied connector tubing. (See fi gure below.)
09053 type (10 horsepower)
4 3 2
3
4
014053 type (16 horsepower)
2
4 3
5
6
Refrigerant tube port
Use caulking, putty, or a similar material to fi ll any gaps
at the refrigerant tube port (
7
rainwater, dust or foreign substances from entering the
unit.
* Perform this work even if the tubing is routed out in a
downward direction.
8
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 Outer dia.
t1/32" (t0.8) ø3/4" (ø19.05)
t1/32" (t0.8) ø7/8" (ø22.22)
t1/32" (t0.8) ø1-1/8" (ø28.58)
t5/128" (t1.0) ø1-3/8" (ø34.93)
1
Refrigerant
tubing
1
Suction tube
2
Discharge tube
3 Liquid tube
4
Balance tube
1
Refrigerant
tubing
1
Suction tube
2
Discharge tube
3 Liquid tube
4 Balance tube
) in order to prevent
Design of W-3WAY ECO-i SYSTEM Unit Specifi cations
Thickness
over t5/128" (t1.0)
t5/128" (t1.0)
t5/128" (t1.0)
t3/64" (t1.1)
Use supplied
Connection method
connector tube?
Brazed connection
Yes (ø3/4"
Brazed connection Yes (ø5/8"
Brazed connection
Flared connection
Use supplied
Connection method
connector tube?
Brazed connection Yes (ø1"
Yes (ø3/4"
Brazed connection
Brazed connection
Flared connection
Tubing routed out forward
2-38
ø7/8")
ø3/4")
No
No
ø1"–1/8")
ø7/8")
No
No
Tubing
cover
Tubing routed out downward
Base plate