MA-003 – MULTITRANS User Guide – Rev 3.0  18-Jan-16  Page 24 of 30 
8  AIR FILTER CLEANING 
The product draws air from the bottom and expels it on the right-hand side. The intake 
air is filtered to remove the largest particles, so depending on environmental conditions 
the air filter may need occasional cleaning. The outlet filter may also require attention. A 
higher temperature in zone two can be an indication that such action is required. 
To clean the air intake filter: 
1.    First  isolate  the  product  through  the  external  circuit  breaker  or  external 
switch before opening the inner door on the right. Isolate any other power sources 
to the system board relays and apply LOTO. Note: Remove the AC cover to gain access to 
the filter assembly. 
2.  If a cable-tie is fitted to the filter holder, first carefully remove it. Remove the filter 
holder by pulling off the black snap-off cover to the filter. 
3.  If  the  filter  mat  is  just  dusty,  clean  it  with  dry  compressed  air  or  by  beating  it 
against a hard clean surface. 
4.  If  the  filter  mat  is  oily,  clean  it  with  mild  detergent  and  water,  and  then  dry  it 
thoroughly. 
5.  Replace the filter mat and snap the cover back in place. Note: The cable tie only secures 
the filter holder during shipping so there is no requirement to replace. 
6.  Close the inner door and re-energise the product. 
 
Figure 8—1: Air filter