Table of Contents
Advertisement
PIM00318A_EN.fm Page 7 Tuesday, October 26, 2010 12:37 PM
Reference for Pipe Selection
Connection pipe diameter (Standard model)
Model
Connection pipe
Oil Inlet
Oil Outlet
Oil Drain
Pipe size/maximum pipe length chart
Suction pipe (Hose inner diameter)
Size (mm)
φ19
Model
50 Hz
2.1
AKZ149
60 Hz
1.7
50 Hz
–
AKZ329
AKZ439
60 Hz
–
Condition: ISO VG32, Viscosity: 200 mm
∗1: The above pipe size may not be applied to the unit, depending on the pipe specifications. For details, contact DAIKIN.
∗2: Refer to the pipe resistance calculation formula.
Pipe resistance calculation method
To determine the oil pipe size, calculate it based on the following
formula:
Pipe resistance: ∆P = 0.595 × V × Q × L/D
(For general hydraulic oil/lubrication oil)
∆P: Pipe resistance (MPa)
V: Kinematic viscosity coefficient (mm
.....See "Viscosity vs.Temperature" chart.
Q: Flow rate (L/min)
L: Pipe length (m)
D: Pipe inner diameter (mm)
∗For flow rate (Q), refer to "Oil pump discharge rate" in
"Model Identification and Specifications" on page
Example of viscosity (Kinematic viscosity coefficient)
2
(1) In winter: 195 mm
/s (ISO VG32, Oil temperature: 5˚C)
2
(2) In summer: 29 mm
/s (ISO VG32, Oil temperature: 40˚C)
∗ For menu models, refer to "Model Identification and Specifications" on page
Discharge pipe
Unit: m
φ25.4
φ31.8
φ38.1
∗1
6.3
(15)
–
∗1
5.1
(12)
–
2.8
6.7
–
2.3
5.5
–
2
/s
4
2
/s)
13
.
AKZ149 • 329 • 439
Rc3/4
Rc3/4
Rc1/4
Size (mm)
φ12.7
Model
50 Hz
4.2
AKZ149
60 Hz
3.4
50 Hz
1.8
AKZ329
AKZ439
60 Hz
1.4
Temperature
10
20
30
40
50
60
70
mm
2
/s
–10
0
10
20
10,000
5,000
3,000
2,000
1,000
500
400
300
(1)
200
150
100
75
50
40
30
20
15
10
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
–10
0
10
20
10
20
30
40
50
60
70
Temperature
13
.
Unit: m
φ19
φ25.4
φ31.8
∗2
21
–
∗2
17
–
9
28
–
7
23
–
80
90
100 110 120 130 140 150 ˚F
30
40
50
60
68
46
(2)
32
22
10
5
2
30
40
50
60
70˚C
80
90
100 110 120 130 140 150 ˚F
7
Hide quick links:
Advertisement
Table of Contents
