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The Rittal SK 3326 ventilation fan has been discontinued, so if it malfunctions, you must order the Rittal SK
3243 ventilation fan.
To install the new fan, see the installation instructions included with the fan.
Filters
Heat exchanger air filters
There are two heat exchanger air filters per cooling zone for a total of six filters.
You do not need any tools to remove or replace the heat exchanger air filter.
Removing the heat exchanger air filter
Pull the locking tabs away from the filter to release it.
1.
Pull the filter down through the frame channels to remove it.
2.
Replacing the heat exchanger air filter
Angle the filter to position the top corners in the frame channels, and then push the filter up to the top of
1.
the frame.
Removal and replacement procedures 26
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