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Master/slave operation
7�4 Connecting the water supply
For motor and frequency converter cooling, the hydraulic power unit must be
connected to a cooling water supply.
Fig� 14: Cooling water connections
1 Cooling water ports K: 2 x G1/2 (DIN EN ISO 1179-2)
▶ Connect the lines to the intended cooling water ports, see Fig. 14, item 1,
and close the connections according to the circuit diagram.
▶ Route the cooling water connections K: G1/2 with cylindrical fittings.
▶ Tighten the fittings according to manufacturer specifications.
▶ Make sure that the cooling water supply temperature does not fall below the
dewpoint of the ambient air around the hydraulic power unit.
▶ Observe the following requirements:
– Cooling water input temperature: 15
– Minimum cooling water flow: 8 l/min
– Maximum cooling water pressure 10 bar
– Maximum glycol content: 30 %
▶ Connect both hydraulic power units in parallel to the water cooling.
1)
Note the dewpoint.
Assembly | CytroPac
1)
... 30 °C
RE 51055-B, Edition 07.2022, Bosch Rexroth AG
35/80
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