Ras-(2-3)Hvrc3; Refrigerant Piping Length; Piping System For Header Branch - Hitachi UTOPIA R32 Series Installation And Operation Manual

6.1 RAS-(2-3)HVRC3

6.1.1 Refrigerant piping length
The refrigerant piping between the indoor unit and the outdoor unit should be designed using the
following chart.
Keep the design point within the area of the chart, which is showing the applicable height
difference according to piping length.
Height difference (m)
When outdoor unit
is installed higher
than indoor unit
When outdoor unit
is installed lower
than indoor unit
6.1.2 Piping system for header branch
1 indoor unit system (2, 2.5 or 3 HP outdoor unit)
(Pictures are as example)
PMEN0654 rev.0 - 12/2023
Total length between outdoor unit and each indoor unit
2 indoor units system (3 HP outdoor unit)
RAS-(2-3)HVRC3
DSW302
Setting
before
shipment
28
6