
12
W2 U2 V2
U1 V1 W1
W2 U2 V2
U1 V1 W1
(L3) (L1) (L3) (L1)
L1 L2 L3 L1 L2 L3
EN
Operating and assembly instructions RDF www.elektror.com
016315 03.14/07
Note!
The eye bolt on the motor must not be used to lift
the entire blower. This is used if the motor needs
to be (dis-)assembled.
2.2 Storage
• Ensure that the air intake connection and pressure
connection are closed.
• Store the blower
-> in its original packaging if possible
-> in a closed room
-> in a dry, dust-free and vibration-free area.
• Storage temperature range from -20°C to +60°C
• After a storage period of 6 months, the blower bearings
and/or motor bearings should be checked before they are
mounted in the blower.
3 INFORMATION ON TRANSPORT,
HANDLNG AND STORAGE OF THE
MACHINE
3.1 Installation and assembly
• Protect the blower from the weather and install it in a hori-
zontal position, see also 1.1. For outdoor use, protection
from the weather must generally be provided that fulfils
the requirements listed in 1.1 Intended Use and protects
the blower from the influences of the weather.
• Do not subject the blower subsequently to vibration or
impact loads during operation. Permissible vibrational load
on blower: refer to ISO 14694, BV-3.
• Bolt the base of the blower securely to the floor at the
place of use without vibration transmission or vibration
load. Make sure that the floor has adequate load bearing
capacity.
• Installation of standard blowers with a vertical drive shaft is
possible with RD F blowers up to the following models:
maximum to RD 64F.
• On open intake or discharge connections a hose or pipe
of a minimum lenght of 1m must be connected.
• Ensure adequate motor ventilation. Permitted ambient
temperature for:
Standard version with rated voltage
( voltage tolerance max. ±10% ) and a design frequency of
50 Hz or 60 Hz.
• Ambient temperature -20°C to +60°C
Special voltage, multi voltage motors, FU (frequency con-
verter) suitable versions, FUK (motor integrated frequency
converter) versions, units with air control:
• Ambient temperature generally -20°C bis +40°C
3.2 Electrical connection
Note!
The work described in this section may only be
performed by a qualified electrician. Connect ac-
cording to the wiring diagram placed in the termi-
nal box complying with relevant local regulations.
Three-phase or a.c. motors can be used as drive motors.
In the appliance designation, the letter D stands for three-
phase a.c. and the letter E for single-phase a.c.
• The drive motor must be protected using a motor overload
switch (this does not apply to frequency converter oper-
ated appliances). Where appliances are frequency-
converter-operated, the existing temperature sensor (PTC
resistor sensor) or temperature switch (normally closed
contact) must be connected to the converter and evalu-
ated.
• The safety earth terminal can be found in the terminal box.
• Install Electrical ON/OFF switches that can be locked as
maintenance / repair switches.
• Suitable electrical controlling must ensure the blower runs
long enough to clear the line system of any residual media
and avoid its blockage.
• Check that the mains voltage corresponds to the voltage
specified on the nameplate.
Note!
For operation of the drive motor with a frequency
converter, the following points should also be
noted:
• Motors may only be operated on a frequency
converter if they have “/FU” (which denotes
“frequency converter compatible”) marked on
the rating plate, or if they have been ordered as
“frequency converter compatible” motors and
confirmed.
• The frequency converter supply voltage must
only be a maximum of 400 V without the motor
filter. Appropriate measures, such as a motor
filter to protect the motor, must be installed on
the motor terminals with longer cables, higher
frequency converter supply voltages and/or if
the pulse voltages are exceeded (max. 1000 Vpk
for drive motors up to 0.75 kW, maximum 1300
Vpk for drive motors larger than 0.75 kW). Please
contact the converter supplier in this case. If a
motor filter is included in the delivery, this must
be installed between the converter and the motor.
Please ensure that there is sufficient space in the
switch cabinet and take into account the installa-
tion and assembly requirements in the operating
instructions of the frequency converter/motor
filter manufacturer.
• The wire running between the motor and the
frequency converter must not exceed a length of
20 m, configured as a suitable, shielded cable and
laid by as direct a route as possible, without any
additional plug/clamp connections.
• The braided screen in the connecting cable
must cover the full length of the cable on both
sides, i.e. be connected to the earthing system at
the frequency converter and to the motor using a
low electrical resistance. For this purpose, suit-
able EMC cable couplings must be used on the
motor side. They must contact the cable shield
around its full circumference and have a low
resistance.
For further information about EMV compliant installation refer
to the operating and assembly instructions of the frequency
converter’s manufacturer.
3.3.1 Configuration for three-phase current blowers
circuit Y circuit
(low voltage) (high voltage)
Checking the direction of rotation
Switch on the blower. The running direction of the impeller