Panasonic ECOi 3 Way Manual de instalación descargar pdf (Pagina 9)

1-6. Tubing Size

Table 1-3 Main Tubing Size (LA)

Unit: in. (mm)

BTU/h (kW)

72,000

(21.1)

96,000

(28.1)

139,000

(40.7)

168,000

(49.2)

192,000

(56.3)

203,000

(59.5)

240,000

(70.3)

264,000

(77.4)

288,000

(84.4)

Total system tonnage 6 8 12 14 16 18 20 22 24

Combined outdoor models

U-72MF1U9(E) U-96MF1U9(E) U-72MF1U9(E)

U-72MF1U9(E)

U-96MF1U9(E)

U-72MF1U9(E)

U-96MF1U9(E)

U-72MF1U9(E)

U-96MF1U9(E)

U-72MF1U9(E)

U-96MF1U9(E)

U-72MF1U9(E)

U-96MF1U9(E)

Suction tubing

ø3/4"

(ø19.05)

ø7/8"

(ø22.22)

ø1-1/8"

(ø28.58)

ø1-3/8"

(ø34.92)

Discharge tubing

ø5/8"

(ø15.88)

ø3/4"

(ø19.05)

ø7/8"

(ø22.22)

ø1-1/8"

(ø28.58)

Liquid tubing

ø3/8"

(ø9.52)

ø1/2"

(ø12.7)

ø5/8"

(ø15.88)

ø3/4"

(ø19.05)

*1: If future extension is planned, select the tubing diameter based on the total tonnage after extension.

However extension is not possible if the resulting tubing size is two ranks higher.

*2: The balance tube (outdoor unit tube) diameter is ø3/8" (ø9.52).

*3: Type 1 tubing should be used for the refrigerant tubes.

*4: If the length of the longest tube (L1) exceeds 295 ft. (equivalent length), increase the main tube (LM) size by 1 rank for the

suction, discharge, and liquid tubes. (Use field-supply reducers.) (Select from Table 1-3 and Table 1-9.)

*5: If the longest main tube length (LM) exceeds 164 ft., increase the main tube size at the portion before 164 ft. by 1 rank for the

suction tubes and discharge tubes.

(For the portion that exceeds 164 ft., set based on the main tube sizes (LA) listed in the table above.)

■ Size of tubing (LO) between outdoor units

Select the size of tubing between outdoor units based on the main tubing size (LA) as given in the table above.

Table 1-4 Main Tubing Size After Distribution (LB, LC...)

Unit: in. (mm)

Total capacity

after distribution

Below BTU/h 24.200 54.600 85.300 102.400 124.200 143.300 162.400 200.600 238.900

Over BTU/h – 24.200 54.600 85.300 102.400 124.200 143.300 162.400 200.600

Tubing size

Suction tubing

ø5/8"

(ø15.88)

ø3/4"

(ø19.05)

ø3/4"

(ø19.05)

ø7/8"

(ø22.22)

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

Discharge tubing

ø1/2"

(ø12.70)

ø5/8"

(ø15.88)

ø5/8"

(ø15.88)

ø3/4"

(ø19.05)

ø3/4"

(ø19.05)

ø7/8"

(ø22.22)

ø7/8"

(ø22.22)

ø7/8"

(ø22.22)

ø1-1/8"

(ø28.58)

Liquid tubing

ø3/8"

(ø9.52)

ø3/8"

(ø9.52)

ø3/8"

(ø9.52)

ø3/8"

(ø9.52)

ø1/2"

(ø12.70)

ø1/2"

(ø12.70)

ø1/2"

(ø12.70)

ø5/8"

(ø15.88)

ø5/8"

(ø15.88)

Total capacity

after distribution

Below BTU/h 258.000 334.400 –

Over BTU/h 238.900 258.000 334.400

Tubing size

Suction tubing

ø1-3/8"

(ø34.92)

ø1-3/8"

(ø34.92)

ø1-1/2"

(ø38.10)

Discharge tubing

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

Liquid tubing

ø3/4"

(ø19.05)

ø3/4"

(ø19.05)

ø3/4"

(ø19.05)

Table 1-5 Outdoor Unit Tubing Connection Size (

–

)

BTU/h

(kW)

72,000

(21.1)

96,000

(28.1)

*1 If the size of tubing (LA) is less than 16.4 feet,

it is recommended that the tubing diameter be

larger than ø7/8" (ø22.22).

*2 If the size of tubing (LA) is less than 16.4 feet,

it is recommended that the tubing diameter be

larger than ø1-1/8" (ø28.58).

Suction tubing

ø3/4"*¹

(ø19.05)*¹

ø7/8"*²

(ø22.22)*²

Brazing connection

Discharge

tubing

ø5/8"

(ø15.88)

ø3/4"

(ø19.05)

Brazing connection

Liquid tubing

ø3/8" (ø9.52) ø3/8" (ø9.52)

Flare connection

Balance tubing

ø3/8" (ø9.52)

Flare connection

Unit: in. (mm)

*1: The outdoor unit connection tubing (LO) is

determined by the total capacity of the outdoor

units connected to the tube ends. The tubing

size is selected based on the table of main

tube sizes after the branch.

*2: If the total capacity of the indoor units

connected to the tube ends is different from

the total capacity of the outdoor units, then the

main tube size is selected based on the total

capacity of the outdoor units.

(For LA, LB, and LF in particular)

W-3WAY_ECO-i_U.indb 9W-3WAY_ECO-i_U.indb 9 2011/11/07 16:29:302011/11/07 16:29:30

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Panasonic ECOi 3 Way Manual de instalación Pagina 9

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