Check  that  the  condensate  discharge  system  in  the  indoor  unit 
works correctly. To do so, check the level of the drain pan using a 
spirit level or a clear exible pipe full of water. The side of the unit 
on which  the  drain  hose is located must  be  around  5 mm lower 
than the front side.
N O T E
The drainage connection on the RPIM unit is located at the rear.
 
Once adjusted, tighten the suspension bracket nuts.
Apply  a  thread-locking  product  to  the  bolts  and  nuts  to  prevent 
them from loosening. Otherwise, abnormal noise may be caused 
by mechanical vibrations and the indoor unit may become loose.
Apply protective paint to the bolts and nuts to prevent rusting. 
Secure the drain hose with the clamp and adhesive supplied.
 
C A U T I O N
Completely cover the unit with a sheet of plastic to protect it during installation work.
 
2.5.3  Air duct connection
N O T E
•  Useeld-suppliedexibleductstoavoidabnormalacousticvibrations.
•  RPIunitsaresuppliedwithastandardairlteronthesuctionside.Thislterissuppliedforcaseswhereno
suction duct is applied (or when the duct is very short).
 
Secure the exible air duct to the outsides of the hoses supplied with the unit.
Bear in mind the following instructions depending on the installation type:
1  Where the suction duct is not used, keep the standard air lter.
2  Where the suction duct is used, t the air lter at the suction duct inlet point, removing the standard air lter from the 
unit. This air lter must be eld-supplied or a factory-adapted one must be used.
3  In the case of the RPIM unit, low static pressure is produced in the suction duct and, therefore, a short duct must be 
used.