17
7 - POSITIONING AND INSTALLATION
7.5 - Change in the air
fl
ow direction
Depending on the unit assembly, is possible to convert on-site a
unit from lower air
fl
ow to horizontal.
■
Supply: all “Standard” assemblies, except when it incorporates
the options of gas burner or boiler.
■
Return: in B1, B2, R1 assemblies and models 070 to 093 with
R2 asembly.
Note: on units with the “Very low outdoor temperature” option, air
supply only may be lateral (factory-con
fi
gured).
Supply
The side panel for supply air is supplied closed. The two parts
required to change direction are connected to the inside of this
panel: the locking part and the pro
fi
le for the outlet.
Locking part
Pro
fi
le for outlet
Positioning the unit on the roofcurb
Once the previous work has been carried out, the machine can
be mounted on the roofcurb. The machine
fi
ts perfectly on the
roofcurb, no connecting element is necessary.
Important:
All roofcurb are supplied with a return safety grille
intended for plenum installations. For installations with ducted
return, the grille must be removed prior to place the machine on
the roofcurb.
This grille is fastened using 4.8 self-tapping hex screws.
Important:
It’s the responsibility of the installer the insulation and
sealing upsweep around the roofcurb, as explained above.
Electric
cabinet
Electric power supply
The power cables can be routed into the electric cabinet of the unit
via the panel located under the electric cabinet or via the base of
the unit, depending on the client’s requirements.
If the connection of the power cables is to be carried out via the
machine base they will have to go through the roofcurb using the
sheet metal precuts for this purpose.
These precuts are located in the roofcurb area below the electric
cabinet. Its position can be consulted in the dimensional drawings.
Safety grille
Detail of
the precuts
Important:
The installer must ensure the sealing in all
the precuts after passing through them the hoses of the
power supply.
Summary of Contents for 50FC 020
Page 79: ......