Hitachi UTOPIA RAS-4 Series - Page 97

9 Piping work and refrigerant charge
Refrigerant piping range
TCGB0136 rev.1 - 05/2021
89
9
2 indoor units system
(mm)
Outdoor Unit HP
Pipe Size (A)
Branch pipe
Gas Liquid
3 - 6 Ø15.88 Ø9.52 E-102SN4
(mm)
Indoor unit capacity
Pipe Size (B, C)
Gas Liquid
≤ 1.5 HP Ø12.70 Ø6.35
1.8/2.0HP Ø15.88 Ø6.35
≥ 2.3 HP Ø15.88 Ø9.52
Connections including Indoor Units 8 and 10 HP are not possible
3 indoor units system
(mm)
Outdoor Unit HP
Pipe Size (A)
Header Branch
Gas Liquid
4 / 5 / 6 Ø15.88 Ø9.52 MH-84AN1
(mm)
Indoor unit capacity
Pipe Size (B, C, D)
Gas Liquid
≤ 1.5 HP Ø12.70 Ø6.35
1.8/2.0HP Ø15.88 Ø6.35
≥ 2.3 HP Ø15.88 Ø9.52