Hitachi SET FREE-Serie Bedienungsanleitung Seite 34

Vorschau ausblenden Andere Handbücher für SET FREE-Serie:

Verfügbare Sprachen

PIPING WORK AND REFRIGERANT CHARGE

Ⓑ First branch

outdoor unit HP

total indoor unit HP

Ⓓ Multi-Kit after first CH-Box or cooling only section (2 pipes

total indoor unit HP

Ⓔ Header branch for 3 pipes section

number of header

total indoor unit HP

Ⓕ Header branch for 2 pipes section

number of header

total indoor unit HP

 Diameter of the main pipe (from the base unit or connection

kit 1 to the first branch) (3 pipes).

outdoor unit

When the maximum length of the equivalent refrigerant pipe from the

piping connection kit 1 to the indoor unit is over 100m, the pipe size

of liquid line from the piping connection kit 1 to first branch should be

increased by one size with reducers (field-supplied).

PMML0479 rev.2 - 02/2018

Gas, high/low

 Pipe diameter after first branch or between Multi-Kits in the

main branch (3 pipes section)

Even if the equivalent refrigerant piping length is more than 100m, no

need to increase the pipe size after first branch. If the multi-kit size is

larger than the first branch,adjust the multi-kit size to the first branch. In

case that the selected pipe size after the first branch is larger than the

pipe size before the first branch, use the same pipe size as before the

 Pipe diameter for 2 pipes and Multi-Kit.

total HP indoor unit

 Pipe diameter between Multi-Kit and indoor unit

HP indoor unit

(*): When the liquid piping length is longer than 15m, use Ø9.52 pipe

and reducer (field-supplied).

The pipe diameter should be the same as the indoor unit piping

connection size.

Check the corresponding Indoor unit connection sizes.

Gas, high/low