Technical Information

Piping work and
refrigerant charge
TCGB0079 rev.0 - 01/2013
126
9.6.3 Permissible range for existing Air-Conditioning Pipes
(Pipe length in the case of “without cleaning process”.
IVX Premium series
Liquid
(mm)
Ø6.35 Ø9.52 Ø12.70 Ø15.88
Thickness (mm)
0.8 0.8 0.8 1.0
Gas
(mm) Ø9.52 Ø12.70 Ø15.88 Ø19.05 Ø12.70 Ø15.88 Ø19.05 Ø22.20 Ø25.40 Ø15.88 Ø19.05 Ø22.20 Ø25.40 Ø28.58 Ø22.20 Ø25.40 Ø28.58
Thickness (mm) 0.8 0.8 1.0 1.0 0.8 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Material Soft-annealed x x x x x x x x x
Material Draw x x x x x x x x x x x
Performance
capacity (m)
2 HP 15
(1)
50 30 - 15
(3)
15
(3)
- - - - - - - - - - -
2.5 HP - 50 30 - 20
(3)
20
(3)
- - - - - - - - - - -
3 HP -
30
(1)(2)
30
(2)
- 30
(1)
50 - - - - - - - - - - -
4 - 5 - 6 HP - - 5
(2)
5
(2)
40
(1)
50 50
(4)
- - 30
(3)
30
(3) (4)
- - - - - -
8 HP - - - - - -
50
(1)(4)
50
(1)
50 -
50
(1)(3)(4)
50
(1)(3)
50
(3)
-
50
(1)(3)
50
(3)
-
10 - 12 HP - - - - - - - - - - - 50
(1)
50 50
50
(1)(3)
50
(3)
50
(3)
(1).Reducing gas pipe size will lower cooling capacity due to larger pressure loss in gas piping and narrow operation range.
(2).Reducing liquid pipe size will narrow operation range due to indoor unit relation with expansion valve capacity.
(3).Increasing liquid pipe size will require additional refrigerant charge.
(4).When using Ø 19.05 gas pipe (soft-annealed), please switch ON DSW2-4# in the Outdoor Unit PCB.
Standard
IVX Standard series
Liquid Ø Ø6.35 Ø9.52 Ø12.70 Ø15.88
Thickness (mm)
0.8 0.8 0.8 1.0
Gas
Ø9.52 Ø12.70 Ø15.88 Ø19.05 Ø12.70 Ø15.88 Ø19.05 Ø22.20 Ø25.40 Ø15.88 Ø19.05 Ø22.20 Ø25.40 Ø28.58 Ø22.20 Ø25.40 Ø28.58
Thickness (mm) 0.8 0.8 1.0 1.0 0.8 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Material Soft-annealed x x x x x x x x x
Material Draw x x x x x x x x x x x
Performance
capacity (m)
3 HP -
30
(1)(2)
30
(2)
- 30
(1)
50 - - - - - - - - - - -
4 HP - - 5
(2)
5
(2)
40
(1)
50 50
(4)
30
(3)
30
(3)(4)
- - - - - -
5 - 6 HP - - 5
(2)
5
(2)
40
(1)
50 50
(4)
30
(3)
30
(3)(4)
- - - - - -
8 HP - - - - - -
50
(1)(4)
50
(1)
50 -
50
(1)(3)(4)
50
(1)(3)
50
(3)
-
50
(1)(3)
50
(3)
-
10 - 12 HP - - - - - - - - - - - 50
(1)
50 50
50
(1)(3)
50
(3)
50
(3)
(1).Reducing gas pipe size will lower cooling capacity due to larger pressure loss in gas piping and narrow operation range.
(2).Reducing liquid pipe size will narrow operation range due to indoor unit relation with expansion valve capacity.
(3).Increasing liquid pipe size will require additional refrigerant charge.
(4).When using Ø 19.05 gas pipe (soft.annealed), please switch ON DSW2-4# in the Outdoor Unit PCB.
Standard
C A U T I O N
In case that its thickness is less than the R410A piping specications, set DSW2, pin 4 ON. With this setting the control
system adjusts the pressure in order to avoid damage to the existing pipe for R22.
TCGB0079_rev0_11-2012.indb 126 29/01/2013 14:27:32