Pressure Setting - Lincoln Electric WALLFLEX Serie Manual De Instalación Y De Uso

A B C
Connections:
A Mains cable
B Motor cable
C Control cable
D Air hoses
Fig. 4.16 Control box
4.9.2

Pressure setting

Applies to all types
of units
The differential pressure switch inside the control panel
activates the filter cleaning system as soon as the pressure
drop reaches the threshold value. This guarantees the
optimum performance of the unit. The pressure setting
depends on the specific configuration and motor frequency.
• Determine the required threshold value (pressure in mbar)
from the table below.
Wallflex Fan power
1200 1,1 kW
2400 2,2 kW
Fig. 4.17
• Demount the transparent cover of the differential pressure
switch.
• Set the required pressure according to the table.
• Install the cover.
• Close and lock the control box.
Fig. 4.17 Differential pressure switch
86958015
D
to mains
to fan
to filter unit
to filter unit
Pressure setting
9 mbar
14 mbar
4.10 Fan outlet
The fan has a rectangular outlet with grid for recirculation
the filtered air into the workshop. In that case the supplied fan
outlet transition –from rectangular to round– is redundant.
For mounting to the optional silencer
must install the fan outlet transition first. The table below
shows the various outlet possibilities.
Fan outlet
Outlet
transition
4.10.1 Fan outlet transition
Fig. 4.18
• Determine the desired outlet configuration.
In case of direct recirculation of the air, the outlet transition is
redundant.
If applicable:
• Disassemble the grid (A).
• Install the outlet transition (B) to the fan with the bolts and
nuts of the grid.
• Install the optional silencer and/or the outlet duct to the
outlet transition.
Fig. 4.18 Fan outlet transition
25. Make sure that recirculation is allowed by state or local regulations
26. Refer to paragraph 1.3
or an outlet duct, you
26
Recirculation
Outlet duct
Exhaust to atmosphere
Silencer Recirculation
Outlet duct
of
25
Exhaust to
atmosphere
EN | 11