Danfoss iC7 Series Installation Manual page 8

Installation Guide | iC7 Series Liquid-cooled dU/dt Filter OF7U1/OF7U2
OF7U1, 820 A: 1.34 l (0.354 gal)
l
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
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Figure 8: Pressure Drop with Water, dU/dt Filter OF7U1/OF7U2, 416 A
1.6
1.5
1.4
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1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
7 8 9 10 11 12
Figure 9: Pressure Drop with Water, dU/dt Filter OF7U1, 820 A
Cooling Circuit Connectors
3.3
The dU/dt Filter has cooling circuit connectors in the manifold plate. The internal thread size is G1/2. The depth of the threads is 13 mm
(0.51 in). The maximum tightening torque is 30 Nm (265 in-lb). Push-in connectors are available as option +ANN1.
The inlet and outlet connectors are at the bottom of the filter. An alternative outlet connector is available at the top of the filter.
If the optional outlet connector at the top is used, the outlet connector at the bottom must be closed with a plug.
Do not connect filters in series. Connecting in series requires high flow rates and high pressure because of the temperature rise of the
coolant in the filters.
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Cooling Requirements
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AN447722773363en-000201 / 172K1108B