Daikin AKZ8 Series, Instruction Manual

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6
Installation Pr
ocedure
Installation
10
mm 2 /s
10,000 50,000
SUS
Saybolt second
Kinematic viscosity coefficient
5,000
3,000
2,000
1,000
500
400
300
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 30 40 50 60
–10 0 10 20 30 40 50 60 70˚C
20 30 40 50 60
Temperature
70 80 90 100 110 120 130 140 150 ˚F
10 20 30 40 50 60
Temperature
70 80 90 100 110 120 130 140 150 ˚F
30,000
20,000
10,000
5,000
3,000
2,000
1,000
68
46
32
22
10
5
2
500
300
200
150
100
80
60
50
45
40
35
ISO VG
Reference for Pipe Selection
Connection pipe diameter (Standard model)
Condition: ISO VG32, Viscosity: 200 mm
2
/s
∗
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
4
(For general hydraulic oil/lubrication oil)
∆
P: Pipe resistance (MPa)
V: Kinematic viscosity coefficient (mm
2
/s)
.....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 .
Oil Inlet
Model
Connection pipe
AKZ148 AKZ328/438 AKZ568/908
Oil Drain
Oil Outlet
Rc3/4
Rc3/4
Rc1/4
Rc1 1/4
Rc1 1/4
Pipe size/maximum pipe length chart
Suction pipe (Hose inner diameter)
Unit: m
AKZ148
φ
19
Size (mm)
Model
φ
25.4
φ
31.8
φ
38.1
AKZ568
AKZ908
AKZ328
AKZ438
(15)
∗
1
(12)
∗
1
6.7
5.5
5
4
6.3
5.1
2.8
2.3
–
–
2.1
1.7
–
–
–
–
–
–
10
8
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
–
–
Discharge pipe
Unit: m
AKZ148
φ
12.7
φ
19
φ
25.4
φ
31.8
AKZ568
AKZ908
AKZ328
AKZ438
∗
2
∗
2
28
23
20
16
21
17
9
7
–
–
4.2
3.4
1.8
1.4
–
–
–
–
48
40
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
–
–
∗
For menu models, refer to “Model Identification and Specifications” on page .
Example of viscosity (Kinematic viscosity coefficient)
(1) In winter: 195 mm
2
/s (ISO VG32, Oil temperature: 5˚C)
(2) In summer: 29 mm
2
/s (ISO VG32, Oil temperature: 40˚C)
(2)
(1)
12·13
12·13
Size (mm)
Model
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