
18
1.53
TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
9.3.2 AC single-phase motors
The fan motors (230 V/50 Hz) are equipped with a single-
phase winding with capacitor auxiliary phase. The speed can
be changed using a 7-stage single-phase controller by voltage
reduction (transformer principle), a continuously variable
single-phase controller, a continuously variable power module
or a KaControl recirculation air module.
9.3.2.1 Single-phase controller
The fan motor has a 230 V main winding with capacitor
auxiliary winding. The units are factory-wired to the correct
direction of rotation (wiring diagram 1, page 18).
If there is no air output then the direction of rotation is
incorrectly wired!
Parallel connection of AC single-phase motor
Several TOP units, even of different sizes, can be connected
in parallel to a single-phase controller up to the maximum
switching power of the single-phase controller. If several TOP
unit heaters are connected to a single-phase controller, we
recommend the use of intermediate terminal boxes.
Important:
Switch the thermal contacts of all fan motors in
series!
Important:
Switch the motor windings of all fans in parallel!
Suitable controllers for AC single-phase motors
Different controllers from our range are available to switch and
control the speed of the motors. The table at the bottom of
page 18 provides an overview of the available controllers, their
switching power and the resulting max. number of TOP unit
heaters, which can be connected to a controller.
TOP with motor junction
box
Содержание Lufterhitzer TOP Series
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