6
The fan casing is made of galvanized steel soundproofed on the inside
with 50 mm thick mineral wool.
The pivot design of the swing-out motor-impeller unit ensures easy
access to the fan internals for quick and efficient cleaning.
The inlet and outlet fitting diameters match the standard duct sizes.
The fittings have rubber seals.
The fan in mounted on RN-VRPK load-bearing frames with integral vibration
dampers and mounting brackets KM-VRPK (ordered separately).
The fan benefits from a steel high-performance centrifugal impeller with
forward-curved vanes.
The impeller is mounted on the electric motor shaft and is jointly balanced
statically and dynamically.
The high-performance single-phase or three-phase electric motor with a
squirrel-cage rotor is completely maintenance-free.
The power is adjusted by means of transformer control units.
The fan is connected to the power mains via the terminal box mounted
on the electrical motor.
Provide an additional electric cable length to ensure unobstructed
opening of the swing-out motor-impelle r unit.
Check the unpacked fan casing (no dents or deformations are allowed)
and make sure that the impeller has smooth rotation and does not touch
the flange and the casing.
Follow the safety regulations during the make-ready procedures and
operation.
Fig. 3 shows the fan wall mounting option using KM-VRPK mounting
brackets.
KM-VRPK mounting brackets are not included in the delivery package.
Ensure a direct air duct section of at least one air duct diameter long
on the inlet side and at least three air duct diameters long on the
outlet side.
The fans undergo continuous design improvement - therefore, some
models may slightly differ from those described in the manual.
FAN DESIGN
FAN INSTALLATION
