21
Ultra
1.54
Comfortable indoor climate in high-end interiors
Installation and operating instructions
KaControl recirculation air module type ...16C1
The thermal contacts switch off the motor via the KaControl module each
time the motor heats up inadmissibly. In addition, the KaControl system sets
the speed signal to 0 V. In both cases, there is no locking shutdown!
The unit is not short circuit-proof! The device will be damaged beyond
repair if the motor cable short circuits. Even when the motor is idle, the
motor cables (U1 and U2) still carry mains potential!
10.2.2 EC fans
All EC fans have integral overload protection; no upstream motor protection
device is therefore needed.
Electromechanical control
The motor junction box contains a relay with a potential-free changeover
24 to 250 V/ 2 A. This reports a fault message for the fan or power failure
only for models 96 and 97. In fault mode, the relay is energised (Contact
C – NO closed). In the event of a fault, the relay becomes de-energised
(Contact C - NO open).
There is no fault signal contact in the fans in models 84 and 85 and
therefore no fan fault or power failure is reported!
KaControl recirculation air module type ... 33C1/34C1
This is signalled to the KaControl system in the event of a fan fault with
models 96 and 97.
There is no fault signal contact in the fans in models 84 and 85. In the event
of power failure at the unit heater, this is not reported via the KaControl
system!
10.3 Electrical wiring
The electrics are preferably wired before the intake grille is fitted. If the
intake grille has already been fitted, a segment of the intake grille next to
the terminal box, continuously variable power module or the KaControl
module (recirculation air) merely has to be removed. To do this, the screws
are unscrewed through the second louvre opening from the bottom.
Damage can be caused by the use of incompatible switching devices
and by the use of inadequate protective equipment. In these cases, the
manufacturer does not accept liability.