Dar Conversion To Roof Fan; Electrical Connection; Connection Information For Electrics; Connecting The Fan Electrically - Maico DAR 63/4 Montage- Und Betriebsanleitung

12 Electrical connection

11.2 DAR conversion to roof fan

A DAR duct fan can be converted into a
roof fan with the DAD conversion kit that
matches the unit variant. The DAD conversion
kit is available for the following nominal sizes:
DAR 63.., DAR 71.., DAR 80.. and DAR 90..
1 Fixing screw with washer
2 Weather protection hood
3 Brackets (4 pcs.)
4 Transport eye
5 Metal base
6 Protective grille on exhaust side
1. Fasten the DAR fan to the metal base with all
associated screws and tighten them firmly
(tightening torque 20 Nm).
2. Attach the upper protective grille and the 4
brackets to the upper fan flange. Tighten the
screws firmly (tightening torque 20 Nm).
3. Fit the weather protection hood (tightening
torque of the 4 fastening screws 10 Nm).
For transport and roof installation, observe
the installation and operating instructions for
DAD roof fans at www.maico-ventilatoren.com.
12 Electrical connection
The electrical connection may only be un-
dertaken by qualified electricians.
12.1 Connection information for
electrics
• Make sure that the details on the rating plate
match the fan's connection values.
• Install appropriate overload protection (PTC
thermistor triggering system) → Overload pro-
tection chapter and Maico's range of accessor-
ies at www.maico-ventilatoren.com.
• Only connect fan in terminal box according to
circuit diagram.
• Observe tightening torques for the terminal
box's screw connections.
• The fan must be correctly earthed to an earth-
ing system in accordance with IEC 60364-5-54.
• Motors <4 kW with full voltage, motors >4 kW
with star/delta starter.
• A star/delta switch, provided by the cus-
tomer, must be installed for fans with a
power consumption >4 kW in order to re-
strict the starting current. If desired, use a
frequency converter or soft starter.
• For fans controlled using frequency converters,
use PTC thermistors to protect the motor from
excessive motor temperatures. Running with
frequency converters may result in higher vibra-
tions and more noise.
• When using thermal protection devices, take
appropriate measures to prevent the fan from
starting unexpectedly. Use separate cables to
connect heaters for unit standstill and do not
supply them with voltage when the motor is run-
ning. Observe the motor's connection diagram,
which you will find in the terminal box, at all
times.
• Install the command equipment needed for
starting, stopping, emergency stops or resetting
after an emergency stop in compliance with the
relevant standards (EN 60204-1, EN 14118,
EN 14119, EN 14120).

12.2 Connecting the fan electrically

Note: Risk of damage to unit in the event of
short-circuits. Insulate any cable cores that are
not needed.
Note prescribed tightening torques.
Components
Terminal box cover: M4 stain-
less steel cylinder head bolts
Sheath terminal M7 x 0.75
mm
Motor terminals TK
1. Disconnect the system from the power supply
and secure it against being switched on again.
Tightening
torque
1.0 Nm
0.7 Nm
0.7 Nm
19