MPB-R/U/2016
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During mechanical connection special attention need to be paid to prevent from falling sold objects into fan, which would lead
to it damage.
3.2 Assembly information
Fan need to by mounted in possition presented on fig. 1 - with inlet flange on bottom. All holes placed in inlet flange (A) have to be used. We
recommend installation with dedicated roof base and adapter. Fasteners secured against loosing need to be applied. Due to the use of the fan
outdoor – prevent form leakage of water between fan inlet flange and montage construction by proper sealing.
Fig. 1
Where:
A – inlet flange
B - cover
C – outlet silencer
Supporting construction has to be solid enough in order to carry the weight of the fan and generated vibration (including fan damage). The fan
cannot be exposed to vibration.
Inlet cover need to be applied. Cover need to protect from touching the impeller according to ISO 13857.
Note:
Although normally used shields the device need to be installed in such a way that prevent people from getting access to the device
(rotor) from the outlet.
Fan need to be secured from sucking foreign elements (see paragraph 1.2.3). Inlet cover must comply with IP20 (EN 60529). If there is still risk
of sucking foreign objects - additional protection need to be used.
It is recommended to apply measures minimizing transmission of vibration from/to the fan.
Keep safe distance between installed device and inflammable elements (special attention to hot surfaces of device need to be paid).
Measures protecting user from burn by hot elements need to be applied.
3.3 Electrical connection guidelines
The fan and power supply network must be protected in accordance with local law requirements.
Detailed guidelines related to electrical connection are located in motor and isolating switch operation manuals and on markings - those
guidelines need to be applied.
Protection against short-circuits, protection against overload and voltage asymmetry need to be applied. It is necessary to use switch that
cmpletely disconnect fan from voltage.
Use appropriate protection against electric shock. Fan need to be connected to grounding system with designed for such purpose ground
terminal (PE) placed in isolating switch.
Voltage and frequency of supply network cannot exceed those indicated on the fan nameplate.
Use electrical wires with proper insulation and cross-section. Supply wires need to be placed in way excluding contact with moving elements
and in a way that liquid (e.g. from condensation) does not run over them in the isolating switch. Cable glands need to be properly tightened.
3.4 Impeller rotation direction
Make sure that after installation and during using the fan the impeller would rotate in correct direction. After mounting fan to proper
construction, with special care taken and in accordance with sector 1 and 4, launch the fan in impulse way (less than 1 second) and check, if
the impeller rotates in correct direction, generating airflow in proper direction. The work with impeller rotating in the wrong direction reduces
fan parameters and may damage it. In case of improper impeller rotation, turn of power supply, wait until impeller stops and change proper
power supplying wires in junction box.
4. USE
4.1 Use guidelines
Make sure that turning on of the fan does not make any hazard for personnel and property. Follow the guidelines featured in section 1.2.
The fan is designed for continuous operations (S1) – too high frequency of starting a fan may lead to motor overheat and damage.
Fan cannot work with voltage, frequency, current higher than shown on the fan
nameplate (even if motor nameplate/manual allows it).
Applying of higher frequency may cause motor damage or mechanical damage of the fan.
Use of fan with lowered voltage is not allowed
- it may cause e.g. lack of fan start-up and motor overheating and damage.
The device cannot work with current consumption exceeding the value indicated on the nameplate.
In case of activation of any electrical protection, detection of damage, unit must by immediately turn out off use.
The device is adapted to work in certain range of characteristic. Too high volume flow rate of medium, start/work of device with completely
opened inlet and/or outlet may lead to motor overheat caused by current consumption exceeding value on the rating plate (current consumed
by fan grows as resistance of installation decreases)
Units work parameters (temperature of medium, ambient temperature, min and max flow rate....) refer to rated speed.
