Electrical Connection - Elektor D 052M Instrucciones De Servicio

2.6 Generation of noise
The noise generated by a blower is not constant over the whole
performance curve (see diagrams below).
D 052M, E 052 50 Hz
2 4 6 8
120 240 360 480 600
Volumetric flow rate V
D 052M, E 052 60 Hz
2 4 6 8
120 240 360 480 600
Volumetric flow rate V
D 060M, E 060 50 Hz
5 10 15
300 600 900
Volumetric flow rate V
D 060M, E 060 60 Hz
5 10 15
300 600 900
Volumetric flow rate V
In certain unfavourable cases a sound-absorbing device may
be required (measurements by the operator are recommended).
Sound-absorbing measures are to be carried out by the operator
so as not to exceed the legally permitted peak values at the
work places near the blower.
3 Installation
3.1 Transport
G Check all parts for damage during transport before installati-
on and starting of operation.
G Do not store the blower unprotected in the open (protect
against moisture).
G Attach hoist securely. Only use hoists and load suspension
devices with sufficient load-carrying capacity.
3.2 Installation, assembly
G Install the blower horizontally and weather-protected.
G Do not subject the blower to any vibrations or shocks.
G Blower with foot base; to be secured tightly at site of
operation on solid, even ground.
G Open intake and discharge ports are to be protected by wire
guards in accordance with DIN EN 294.
G Ensure adequate motor ventilation. Permissible ambient
temperatures for:
Standard motors –20° C to +60° C
with a rated voltage (max. ± 10 % voltage tolerance) and a
rated frequency of 50 Hz or 60 Hz
Special-purpose motors –20° C to +40° C
multi-voltage range (50 Hz and/or 60 Hz)
FU/FUK series
UL approval
dB(A)
85
80
75
70
10 12 14 16 18 m
720 840 960 1080 m
.
dB(A)
85
80
75
70
10 12 14 16 18 m
720 840 960 1080 m
.
dB(A)
85
80
75
70
20 25 m
1200 1500 m
.
dB(A)
85
80
75
70
20 25 m
1200 1500 m
.

3.3 Electrical connection

☛
Note!
The work described under this section may be
executed by a qualified electrician only. Connections
to be carried out in accordance with wiring diagram
in terminal box and relevant local regulations.
As drive motor for the D blower a three phase a.c. motor is
fitted, the E blower with a single phase a.c. motor with
operating capacitor.
G The drive motor has to be safeguarded by a motor circuit-
3 /min
breaker.
3 /h
G The safety earth terminal can be found in the terminal box.
3.3.1 Connection of three phase units
3 /min
3 /h
L1 L2 L3
(L3) (L1)
-configuration
(lower voltage)
Checking direction of rotation
Start operation of blower. The direction of rotation of the impel-
3
/min
ler must correspond to the directional arrow on the housing.
3 /h
If the direction of rotation is incorrect, the two connecting wires
L1 and L3 have to be interchanged.
3.3.2 Connection of single phase units
3 /min
3 /h
L1 N
Clockwise
4 Operation
If the rated current of the drive motor is exceeded during opera-
tion, voltage and frequency of the power supply should be
checked and compared with the data on the blower rating plate.
If the blower cannot be operated over the whole range of the
characteristic curve, an overload of the motor may occur in case
of insufficient system resistance (excessive current consumption).
The volumetric air flow should be reduced in this case by
means of a throttle valve fitted on the intake or discharge side.
The blower must not be subjected to vibration or shock loads.
5 Maintenance
Wearing parts are subject to the recommended maintenance
intervals and are a constituent part of the applicable warranty
claims. The service life of wearing parts (ball bearings and filters)
depends on the operating hours, the load and other influences,
such as temperature, etc.
5.1 Ball Bearings
The fan is equipped with enclosed deep groove ball bearings,
which do not have be to re-greased and have a minimum service
life of approx. 12,000 hours. We recommend exchanging the
ball bearings before the end of service life (at least 12,000 hours).
The 18-month operating time is not to be exceeded given con-
tinuous operations of 24 hours a day.
GB IRL
L1 L2 L3
(L3) (L1)
-configuration
(higher voltage)
L1 N
Anti clockwise
7