Installation Instructions

11
• Coupling size of brazed pipe
(Unit: mm)
Connected section
External size Internal size
Connected section
External size Internal size
Standard outer dia. (Allowable difference)
Min. depth
of insertion
Standard outer dia. of
connected copper pipe
CFKG
Oval value
Min. thickness
of coupling
6.35 6.35 (±0.03) 6.45 (
+0.04
–0.02
) 7 6 0.06 or less 0.50
9.52 9.52 (±0.03) 9.62 (
+0.04
–0.02
) 8 7 0.08 or less 0.60
12.70 12.70 (±0.03) 12.81 (
+0.04
–0.02
) 9 8 0.10 or less 0.70
15.88 15.88 (±0.03) 16.00 (
+0.04
–0.02
) 9 8 0.13 or less 0.80
19.05 19.05 (±0.03) 19.19 (
+0.03
–0.03
) 11 10 0.15 or less 0.80
Minimum wall thickness for R410A application
Soft Harf Hard or Hard OD (Inch) OD (mm) Minimum wall thickness (mm)
OK OK 1/4” 6.35 0.80
OK OK 3/8” 9.52 0.80
OK OK 1/2” 12.70 0.80
OK OK 5/8” 15.88 1.00
NG * OK 3/4” 19.05 1.00
* If the pipe size is Ø19.0 or more, use a
suitable material.
Table 1 Table 2
Capacity code Capacity code
Total capacity code of
connectable indoor units
Indoor unit
capacity type
Equivalent to HP Equivalent to capacity
Outdoor unit
capacity type
Equivalent to HP
No. of
connectable
indoor units
Min. (HP) Max. (HP)
007 type 0.8 2.2 0401 type 4 6 3.2 5.2
009 type 1 2.8 0501 type 5 8 4.0 6.5
012 type 1.25
3.6
0601 type 6 9 4.8 7.8
015 type 1.7
4.5
018 type 2
5.6
024 type 2.5
7.1
027 type 3
8
030 type 3.2
9
036 type 4
11.2
048 type 5
14
K
ØC
G
ØF
Selection of pipe materials and size
• Selection of pipe material
Material: Phosphorus deoxidation seam-less pipe
• Capacity code of indoor and outdoor units
• For the indoor unit, the capacity code is decided at each capacity rank.
• The capacity codes of the outdoor units are decided at each capacity rank.
The maximum No. of connectable indoor unit and the total value of capacity codes of the indoor units are also
decided.
3 REFRIGERANT PIPING