7
04.06.2019
stationary radial fan
WPA
-
14
-
S
-
N
Before connection to the power supply, make sure whether the parameters of the exis-
ting electrical
installation are corresponding
the
data on the nominal plate
.
In case of in
-
consistency, the connection cannot be executed
.
Connection to the electrical
power system has to be executed
by User on one’s own.
It is impor
-
tant to select the right type and section of the supply cable, and choose the appropriate short-
circuit- and overload protection, according to the local conditions.
Connection to the
power supply system ought
to be carried out by an au-
thorized
person with electrical qualifications,
and according to valid
regulations and the
Connection Diagram in the Fig. No.4
.
Prior to the start-up, check the connection between the motor and
the PE protective cable, and
the correctness of the electrical connections (
the impeller rotation sense should be accor-
ding to the arrow on the housing
–
if this is not the case, change the phase connection
sequence
).
Approaching with loose clothes or putting the hand near the open inlet
of the running fan,
can cause hazard of accident and disability.
Absolutely, do not look
into the working fan as this could cause the face injury of the operator
.
In case of any activities carried out on the fan,
it is important
to disconnect the device
from the power supply system
.
7.
Operational Use
Construction of the
device guarantees its reliable function
, without
continuous technical routine
supervision after the start-up
. If the place of
operational use is changed, repeat the steps men-
mentioned in Section 6, according to the installing
and adapting the ventilation system to the
new conditions / another place of use. In case when
any defective function of the unit occurs
(e.g. annoying noises or the outlook of the device) follow steps as in Section 8.
Caution
:
1. Insulation class
I
2. Ingress protection
IP54
3. Setting of the motor switch
Q1
:
It
= 1,1 x
In
where
In
means rated current
of the motor.
*
S1
– isolating switch (safety switch)
It is suggested to install it near the fan
Purchase and installing ought to be
carried out by the investor.
Connect the motor windings
according to the Connection
diagram on the terminal box cover.
Fig. No.4
– Connection Diagram of the fans type WPA-14-S-N