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UNITS INSTALLATION
3.1.2 Connecting field supply duct and suction air filter servicing
Field supply duct installation
Fix the flexible air duct to external faces of unit flanges (the unit is equipped with factory supply flanges for this purpose).
It is recommended to use a flexible field supply duct portion in order to avoid any abnormal sound vibration.
RPI units are supplied with standard air filter at the suction side. This filter is provided for the cases in which no suction duct is
applied (or it is very short).
Fig. 1
Fig. 2
It is recommended the following indications depending on the installation.
-
Keep the standard air filter in case of no suction duct is applied (fig.1).
-
In case of applying suction duct, it is recommended to apply air filter at the inlet point of suction duct, removing the standard
air filter of the unit (fig. 2).
Suction air filter servicing
Do not remove this
screw
1 Remove the stay support (4 screws) from the unit.
2 Remove the cover.
3 The filter is held by a tab (2x) in the cover. The filter must be gently pushed in order to make it come off from the tab.
4 To put the filter back in place, pass the filter through the lateral guides and fit it in the upper tabs. Then push the filter in order to
insert it in the bottom tabs.
9
PMML0385 rev.2 - 12/2018
Standard air filter
(factory-supplied)
Air filter (factory-supplied or
adapted factory one)
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