Selection Of Refrigerant Pipe Size - Daikin VRV System R-22 PLUS Series Manual

Si33-102.book Page 98 Tuesday, June 26, 2001 3:18 PM
Appendix
7.2

Selection of Refrigerant Pipe Size

Capacity of indoor unit and size of refrigerant pipe (G)
Class 20
Cooling kcal/h 2,000 2,500
Capacity
Btu/h 7,900 9,900
(19.5 ˚CWB)
kW 2.3 2.9
Cooling kW 2.2 2.8
Capacity
(19 ˚CWB)
Heating kcal/h 2,200 2,800
Capacity
Btu/h 8,500 10,900
kW 2.5 3.2
Liquid Pipes
Gas Pipes
Selection of branch kit...REFNET joint (A) and REFNET beader (B)
Less than 100
100 or more to 160 (160 excluded)
160 or more to 330 (330 excluded)
330 or more to 640 (640 excluded)
640 or more
Note: 1. KHRJ26K40/75TP or KHRJ26K40HP are pipe size reducer.
2. For system with total capacity of 640 and over, connect REFNET header after the REFNET joint branch
kit.
98
25 32 40 50 63
3,150 4,000 5,000 6,300
12,500 15,900 19,900 25,000
3.7 4.7 5.8 7.3
3.6 4.5 5.6 7.1
3,400 4,300 5,400 6,900
13,600 17,000 21,500 27,300
4.0 5.0 6.3 8.0
φ6.4 φ9.5
φ12.7 φ15.9
Capacity REFNET joint (A)
KHRJ26K11T
KHRJ26K18T
KHRJ26K37T
KHRJ26K40T + KHRJ26K40TP
Note 1
KHRJ26K75T + KHRJ26K75TP
: http://splitoff.ru/tehn-doc.html
SiE33-102
80 100 125 200 250
8,000 10,000 12,500 20,000 25,000
31,800 39,700 49,600 79,000 99,000
9.3 11.6 14.5 23.0 28.8
9.0 11.2 14.0 22.4 28.0
8,600 10,800 13,800 21,500 27,000
34,100 42,700 54,600 85,300 107,500
10.0 12.5 16.0 25.0 31.5
φ9.5 φ12.7 φ12.7
φ19.1 φ25.4 φ28.6
REFNET header (B)
KHRJ26K11H (Max. 4 branches)
KHRJ26K18H (Max. 6 branches)
KHRJ26K37H (Max. 8 branches)
KHRJ26K40H (Max. 8 branches) +
KHRJ26K40HP Note 1
Note 2
General Information