System Design
3. Refrigerant piping design
D-11
(5) Equivalent length of refrigerant piping
The following table shows the equivalent straight piping length of connectors that may be used in the piping
system.
Table 3. Equivalent straight piping length of connectors
Units (m)
Inlet pipe or thick pipe
(gas pipe)
φ
9.52
φ
12.7
φ
15.88
φ
19.05
φ
22.22
φ
25.4
φ
28.58
φ
31.75
φ
38.1
90º elbow
0.15
0.3
0.35
0.42 0.48 0.52 0.57 0.7 0.79
45º elbow
0.1
0.23
0.26
0.32 0.36 0.39 0.43 0.53 0.59
T-tee 0.2
0.5
0.5
0.6
–
0.8 0.9 0.9
–
Socket 0.05
0.1
0.11
0.12
–
0.14 0.16 0.18
–
U bend (R60 -100mm)
0.7
0.9
1.05 1.26 1.44 1.56 1.71 2.1 2.37
Trap bend
1.8
2.3
2.8
3.2
3.8 4.3 4.7 5.0 5.8
Branch pipe
0.5
Header pipe
1
Ball valve for service
Not applicable to equivalent length calculation
Table 4. Equivalent straight piping length of bent pipe
Equivalent length
R
d
45º bend
90º bend
180º bend
0.5 25.0×d 40.0×d 53.5×d
1.0 12.0×d 18.5×d 25.8×d
1.5 7.8×d 12.2×d 16.4×d
2.0 6.4×d 10.0×d 13.4×d
2.5 5.9×d 9.2×d 12.3×d
3.0 5.7×d 9.0×d 12.0×d
3.5 5.9×d 9.2×d 12.2×d
4.0 6.4×d 10.0×d 13.4×d
4.5 7.1×d 11.0×d 14.8×d
Calculation example
d: OD R: Bend radius
-
=
-
=1.57
Example:
For a 19 mm dia. Pipe bent 90º with 30 mm radius
(d=19
・
R=30)
From the table,
Length = 12.2 x 19 =231 mm
The result is 0.23
R
d
30
19
Summary of Contents for ECO G SGP-EW120M2G2W
Page 3: ...A 1 System Configuration Contents 1 Type Configuration 1 Outdoor unit A 2 ...
Page 12: ...Outdoor Unit 3 External Dimensions B 8 ...
Page 13: ...Outdoor Unit 4 Wiring Diagram B 9 ...
Page 14: ...Outdoor Unit 5 Performance Characteristics B 10 Cooling Heating SGP EW120M2G2W ...
Page 15: ...Outdoor Unit 5 Performance Characteristics B 11 Cooling Heating SGP EW150M2G2W ...
Page 16: ...Outdoor Unit 5 Performance Characteristics B 12 Cooling Heating SGP EW190M2G2W ...
Page 17: ...Outdoor Unit 5 Performance Characteristics B 13 Cooling Heating SGP EW240M2G2W ...
Page 18: ...Outdoor Unit 6 Operating Sound Level Characteristics B 14 1 Standard Mode ...
Page 19: ...Outdoor Unit 6 Operating Sound Level Characteristics B 15 ...
Page 20: ...Outdoor Unit 6 Operating Sound Level Characteristics B 16 ...
Page 21: ...Outdoor Unit 6 Operating Sound Level Characteristics B 17 ...
Page 22: ...Outdoor Unit 6 Operating Sound Level Characteristics B 18 2 Quiet Mode ...
Page 23: ...Outdoor Unit 6 Operating Sound Level Characteristics B 19 ...
Page 24: ...Outdoor Unit 6 Operating Sound Level Characteristics B 20 ...
Page 25: ...Outdoor Unit 6 Operating Sound Level Characteristics B 21 ...
Page 28: ...Control Related 1 System Block Diagram C 2 ...
Page 29: ...Control Related 2 Remote Control Warning List C 3 ...
Page 30: ...Control Related 2 Remote Control Warning List C 4 ...
Page 31: ...Control Related 2 Remote Control Warning List C 5 ...
Page 76: ...Installation Work 1 Points regarding refrigerant pipe work E 3 APR P680BG ...
Page 77: ...Installation Work 1 Points regarding refrigerant pipe work E 4 APR P1350BG ...
Page 78: ...Installation Work 1 Points regarding refrigerant pipe work E 5 APR CHP680BG APR CHP1350BG ...
Page 86: ...Installation Work 2 Points regarding electrical work outdoor unit E 13 ...
Page 87: ...Installation Work 3 Outdoor unit installation work E 14 ...
Page 88: ...Installation Work 3 Outdoor unit installation work E 15 ...
Page 89: ...Installation Work 3 Outdoor unit installation work E 16 ...
Page 90: ...Installation Work 3 Outdoor unit installation work E 17 ...
Page 91: ...Installation Work 3 Outdoor unit installation work E 18 ...
Page 92: ...Installation Work 3 Outdoor unit installation work E 19 ...
Page 93: ...Installation Work 3 Outdoor unit installation work E 20 ...
Page 94: ...Installation Work 3 Outdoor unit installation work E 21 ...
Page 95: ...Installation Work 3 Outdoor unit installation work E 22 ...
Page 96: ...Installation Work 3 Outdoor unit installation work E 23 ...
Page 97: ...Installation Work 3 Outdoor unit installation work E 24 ...
Page 98: ...Installation Work 3 Outdoor unit installation work E 25 ...
Page 99: ...Installation Work 3 Outdoor unit installation work E 26 ...
Page 100: ...Installation Work 3 Outdoor unit installation work E 27 ...
Page 101: ...Installation Work 3 Outdoor unit installation work E 28 ...
Page 102: ...Installation Work 3 Outdoor unit installation work E 29 ...
Page 103: ...Installation Work 3 Outdoor unit installation work E 30 ...
Page 104: ...Installation Work 3 Outdoor unit installation work E 31 ...
Page 105: ...Installation Work 3 Outdoor unit installation work E 32 ...
Page 106: ...Installation Work 3 Outdoor unit installation work E 33 ...