4.3 Replacing the fan tray or airfilter mat
Before replacing the fan tray, set the power supply into standby-mode, disconnect from mains and wait a few minutes.
Needed tool is a Phillips-screw driver. Begin with removing the blue sticker on the module side of the crate, unscrew the four Phillips-
head screws and detach the lid. Now the airfilter mat is accessible for service. To remove just turn the retainers to the side and pull out
the sheet metal holder.
Figure 4: remove cover to replace fan tray
Figure 6: pull out tray
After removing the case lid, use the Allen-head screw driver to unscrew the two tray retainers and pull out the fan tray assambly.
Reassemble in reverse order. UPS – uninterruptible power supply (optional)
The ECH 5XA can be optionally equipped with a battery driven uninterruptible power supply (UPS) for the HV-module power rail. Its
purpose is to provide emergency power to the HV-modules and CC24 / CC23 controller boards in case the mains power is failing. The
battery backup is intended to securely shut the running system down, to prevent damage on the high voltage source- and load-side.
ECH5xA – 10 Slot MMS Crate | Last modified on: 07.10.2019| www.iseg-hv.com
9/16
Figure 5: remove fan tray
