Liquid Cooling ACU / ANG /AEC
3.3 Cooling and installation types by assemblies
L, N: stainless steel, open cooling circuit, standard installation
M: aluminum, closed cooling circuit, standard installation
N: stainless steel, open cooling circuit, through-hole installation
O: aluminum, closed cooling circuit, through-hole installation
3.4 Storage
Damage caused by incorrect storage
Wrong or inappropriate storage may result in damage, e.g. due to moisture and dirt.
Avoid major temperature variations and high air humidity.
During storage, protect the device against moisture and dirt.
The frequency inverters must be stored in an appropriate way. During storage, the devices must
remain in their original packaging.
The units may only be stored in dry rooms which are protected against dust and moisture and are
exposed to small temperature deviations only. The requirements of DIN EN 60721-3-1 for storage,
DIN EN 60721-3-2 for transport and labeling on the packaging must be met.
The duration of storage without connection to the permissible nominal voltage may not exceed
one year. After one year of storage, connect the device to mains voltage for 60 minutes.
Damage due to incorrect transportation
Liquid cooled devices may be transported only with the heat sink completely drained of
the coolant.
Use compressed air to drain the heat sink radiator.
4 Technical data
4.1 General technical data
For the general technical data of your device, refer to the relevant Operating Instructions.
4.2 Technical data - Liquid Cooling, general
Aluminum design: suitable for closed cooling circuits only
Stainless steel design: suitable for open and closed cooling circuits
according to Coolant Directive VGB-R 455 P,
hydrological data, see Chapter 4.4 "Hydrological data"
Connection with threaded lock or PTFE sealing tape, ½” internal thread
5 … 45°C, typical value: 25°C
Coolant temperature (in) for
open cooling circuit size 8 de-
vices
Coolant temperature (out)
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