Trane Variable Refrigerant Flow System Mini Outdoor Unit Series Instrukcja Instalacji Pobierz pdf (Strona 13)

VRF-SVN33A-EN 13

Refrigerant Piping

This section contains information on selecting, storing, and connecting refrigerant piping.

Selecting Refrigerant Piping

Refrigerant piping diameter, thickness, and temper is selected according to length, as specified in

this section.

Notes:

• Use insulated, unwelded, degreased, and deoxidized copper pipe (Cu-DHP type according

to ISO 1337 or UNI EN 12735-1) suitable for an operating pressure of at least 609.15 psi

(4200 kPa) and a burst pressure of at least 3002.28 psi (20,700 kPa). Copper pipe for hydro-

sanitary applications is unsuitable.

• If there is a risk of decreased performance caused by pipe length, use piping that is one

size larger than that specified in this section.

Pipe Diameter

Table 3 specifies the diameter of the main pipe based on unit capacity.

Table 4 specifies the pipe size between branch joints.

Table 3. Mini outdoor unit main pipe size based on unit capacity

Mini outdoor unit

capacity

Liquid pipe

in. (mm)

Gas pipe

(a)

in. (mm)

(a) Increase the gas pipe from the outdoor unit to the first branch joint by one size if the pipe length between the outdoor

unit and the farthest indoor unit, including the elbow, exceeds 295 ft (90 m); or if the outdoor unit capacity declines due to

pipe length.

Ton MBH

338

3/8 in. (9.52 mm)

5/8 in. (15.88 mm)

448

553 3/4 in. (19.05 mm)

Table 4. Pipe size between branch joints

Indoor unit total capacity

(MBH)

Pipe size (OD)

Liquid

in. (mm)

Gas

in. (mm)

Less than 51

3/8 (9.52)

5/8 (15.88)

51-79.2 3/4 (19.05)

Main pipe

First branch joint

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 51 52

Komentarze do niniejszej Instrukcji

Brak uwag

Trane Variable Refrigerant Flow System Mini Outdoor Unit Series Instrukcja Instalacji Strona 13

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Klimatyzatory typu split Trane Variable Refrigerant Flow System Mini Outdoor Unit Series