Liquid Cooling ACU / ANG /AEC
6 Coolant connection
The permissible type of cooling system depends on the design of the liquid-cooled frequency inverter:
Non-stainless steel designs are only suited for closed cooling circuits.
Stainless steel designs can be used both for closed and open cooling circuits.
Device damage
Wrong coolant specifications can result in device damage.
Note the design-specific requirements to be met by the coolant, see Chapter 4.4
"Hydrological data".
The coolant supply connection is implemented via ½ inch internal thread connections on the bottom or
rear of the frequency inverter.
When connecting the coolant, note the specified flow direction.
Close unused ports using the relevant plugs.
Use thread-seals or PTFE sealing tape to seal all coolant connection ports.
Install a solenoid valve in the coolant supply line, see Chapter 6.4.2 "Coolant supply
control".
After installation, verify tightness.
The following sub-chapters show the connection ports for the different sizes.
6.1 Size 6
Rear coolant connection ports:
Bottom coolant connection ports:
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