Roof fans - Troges

RF Fans
Example E
RF Fan without Output Control
and with Control Unit
Figure 9 – Fan connection
Application of the RF fan as an exhaust fan in a sophisticated
air-handling assembly. The inlet branch is not
displayed.
This connection ensures:
Full thermal protection of the fan
Fan switching on/off manually/automatically by the
control unit (or its external switch) in conjunction with
the inlet fan.
The air-handling assembly can be started by the control unit, manually
or automatically following the program.
The protection of motors equipped with TK contacts must always be
ensured by the control unit while TK, TK thermo-contact terminals are
connected to terminals in the control unit.
Fans of smaller size are protected against overloading by thermocontacts
connected in series with the power supply. If the motor
overheats, the thermo-contacts automatically disconnect the power
supply circuit of the motor winding. After cooling down, the contacts
will close and the fan starts up automatically.
control
unit
24V=
230V / 50Hz
(3x 400V / 50Hz)
230V / 50Hz
(3x 400V / 50Hz)
Example F
RF Fan with Single-Phase Motor,
Output Controller and Control Unit
Application of the RF fan as an exhaust fan in a sophisticated
air-handling assembly. The inlet branch is not
displayed.
This connection ensures:
Manual selection of the fan output within the stage
range 1–5.
Thermal protection of the fan (by connecting the
TK thermo-contact terminals to terminals in the control
unit).
Fan switching on/off manually or automatically, and
switching on of the entire assembly by the control unit
(or its external switch) in conjunction with the inlet fan.
Figure 10 – Fan connection
24V=
TRN
In this connection, all additional functions of the controller
must always be blocked by interconnecting the PT2
and E48 terminals in the controller.
control
unit
230V / 50Hz
24V=
230V / 50Hz
230V / 50Hz
(3x 400V / 50Hz)
20