Hitachi RAS-4-HNCE - Page 83

3. Piping work and refrigerant charge
69
SMGB0079 rev.0 - 01/2013
3
Line branch system
A
B
C
D
(mm) Multi-kit model A Multi-kit model B
Outdoor Unit HP
Pipe Size (D) IVX Premium Series IVX Standard Series IVX Premium Series IVX Standard Series
Gas Liquid
3 / 4 / 5 / 6 Ø15.88 Ø9.52
E-102SN2 E-102SN2 E-102SN2 E-102SN2
8 Ø25.40 Ø9.52
(1)
E-162SN2 E-162SN2 E-102SN2 E-102SN2
10 /12 Ø25.40 Ø12.70
E-162SN2 E-162SN2 E-102SN2 E-102SN2
(1) In case that total pipe length from the outdoor to the farthest indoor unit exceeds of 70m in 8 HP unit, please use a Ø12.7 pipe as a liquid pipe.
(mm)
Indoor Unit capacity
Pipe Size (C)
Gas Liquid
≤ 1.5 HP Ø12.70 Ø6.35
1.8 / 2.0 HP Ø15.88 Ø6.35
> 2.3 HP Ø15.88 Ø9.52