APC INROOM ACPSC3000 Operations Instructions Page 38

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InRoom CW/DX – Operating Instructions
Pipe diameter
mm
(inch)
15
(5/8)
18
(3/4)
22
(7/8)
28
(1 1/8)
35
(1 3/8)
42
(1 5/8)
Refrig. capacity
kW
(MBH)
4.41
(15)
5.17
(17.7)
7.14
(24.4)
10.0
(34.2)
16.58
(56.6)
25.9
(88.4)
100
70
50
30
20
10
7
5
3
5 10 20 30 50 70 100
28
22
18
16
12
10
R407C
100
70
50
30
20
10
7
5
3
5 10 20 30 50 70 100
42
35
28
22
18
16
12
10
kW
kW
17 34 68 103 170 240 340 MBH
17 34 68 103 170 240 340 MBH
ft
330
230
164
100
66
33
23
16
10
m
ft
330
230
164
100
66
33
23
16
10
m
1 1/2
1 1/4
1 1/8
7/8
5/8
1/2
3/8
1 1/8
7/8
5/8
1/2
3/8
3/4
3/4
38
Pressure lines
Depending on the overall pipe
lengths and refrigeration outputs
with a permissible pressure loss of
30 kPa (10 ft of water)
Further conditions:
Condensation temperature
tc = 45°C (113°F)
Evaporation temperature
to = 3°C (37.4°F)
Subcooling: 3K (5.4R)
Superheating: 7K (12.6R)
Liquid lines
Depending on the overall pipe
lengths and refrigeration outputs
with a permissible pressure loss of
15 kPa (5 ft of water)
Selection of the pipe diameters
Diagrams for designing the refrigerant lines
Refrigeration output
Overall pipe length
Overall pipe length
Refrigeration output
Outside diameter [mm/inch]
Outside diameter [mm/inch]
Minimum refrigeration outputs which are required for oil transportation in rising pipes of pressure lines for
R407C at tc (dew point) 48°C (118.4°F).
Table 2: Selecting the pipe lines
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