Commissioning; Maintenance / Cleaning - Vortice VHD Betriebsanleitung

ENGLISH
CONNECTION TO THE DUCT INSTALLATION: In the cases where the fan should be connected to a duct network
for air distribution, it should be connected to the corresponding suctioning inlet and outlet with adapting flanges
accepted by the manufacturer. It is advised to use elastic joints together with such flanges whenever possible (both
accessories should be purchased aside from the fan). In addition, centrifugal fans of the VCMAPD and VCMAPT
groups are recommended to use elastic buffers. In case the flanges are connected directly make sure stress and
tensions do not appear and damage the fan. Under no circumstances the fan should support the duct system weight;
it should have its own separate supporting system. It is also advised to leave a part of the duct system detachable
on both sides to facilitate access to both inlet and outlet and the space left once the flanges are removed is enough
so the operator can easily reach inside the fan. In the cases of axial fans (VHD and VHT) no reductions in the ducts
will be applied keeping the minimum nominal diameter of the fan.
PROTECTION AGAINST UNVOLUNTARY ACCIDENT: For all fan models, Vortice can provide protection
accessories against rotating bodies ( impeller and propeller) like stipulated in the EN ISO 13857:2008 regulation. The
installer or final user should request and assemble such protection elements to guard any openings left in the fan
after being installed.
NOTE: the impeller and propeller could not be visible when rotating under poor illuminating conditions.

Commissioning

Once all previous measures are done and in case of not encountering any problems, the fan can be started up. But
before doing the first start up it is advised to check again and directly that there is no friction with any rotating element
because maybe when being installed the fan could be forced or damaged. Also double check no external element
or left over material from the installation is inside the fan or its ducts.
The first start up should be short time wise and aimed for checking only that the direction is in accordance to the
specifications and to check no strange noises or frictions appear. In case the direction of the rotation is wrong the
connection should be changed as previously indicated.
In the second start up, the fan should be allowed to reach the maximum nominal speed once finished the controlled
start-up. If regulating doors are used, open them so the fan can adapt to the required installation conditions.
NOTE: At this moment is when a strict real consumption control should be done with a hook-on meter,and
checking it does not exceed the nominal consuption "IN' specified in the plae for the working use of the fan.In case
it exceeds the consuption immediately stop the fan. An excessive consumption could be caused by a possible defect
of the fan, motor, friction, or an electrical connection error, but the main cause usually is a wrong adaptation of the
installation due to excess or faulty charge. If the fan is an axial fan VHD and VHT chances are that an element
obstructs excessively the air flow. On the contrary, if the problem appears in a centrifugal fan of VCBPD, VCBPT,
VCMAPD and VCMAPT groups, the air flow should be obstructed with the regulating door if existing or by placing
any element that can obstruct partly the suctioning inlet. In this latest case, amongst anything check that no elements
are loose that can be suctioned inside the fan. Once readjusted the installation check again that the consumption is
within the range. After this readjustment is achieved, the fan should be started up and work correctly without any
problems.
Maintenace/Cleaning
MAINTENACE OF THE FAN: It is recommended a complete check up of the fan and its installation after the first 24
hours after start up, by electronically disconnecting it from the network in order to avoid accidents. We suggest
usage of security switches specially made for this purpose. Review that no element has been loosened and
especially for the transmission groups VHT, VCBPT and VCMAPT retighten all elements: pulleys, tensors, motor
base support, shafts, etc. Also check the motor bearings and transmissions by manually rotating the impeller or
propeller. If any odd noise or problem occurs check with the manufacturer. In installations where the fan is usually
not operating, periodically inspect the fan maximum every 6 months. Checking all components keep the initial state
and no signs of stiffness appear or noises in the bearings. It is also advised a complete start up and working at least
1 hour. NOTE: All models of the VCCPD range and other indicated models, have a thermal protector that can
temporarily make the motor stop. Therefore do not access to the fan without previously disconnecting it from the
network. In three-phase models such protection activates the contactor circuit of the electrical installation.
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