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Due to its design, the device does not emit any hazardous radiation.
Despite the fact that the device has been designed and manufactured in accordance with the
standards valid as for the moment of the manufacture start, probability of injury and damage
to health when using the device is unavoidable. This probability is related to frequency of using,
cleaning and repairing the device, presence of persons within the danger area, and not respecting
the safety rules as set out in the instruction.
Severity of the bodily injury and deterioration of health is dependant on numerous conditions which
can be foreseen partially only by considering them when designing the device and by providing
descriptions and warnings in the instruction manual.
Therefore residual risk is present if recommendations and instructions are not respected by the
operator.
9. INSTALLATION
The fans are bolted trough seals on roof bases, ventilation ducts or damping roof bases with use of
M8 bolts (4, 6 or 8 pcs. depending on size of roof fan).
The support plate of roof fan is equipped with laminaded nuts for bolting with spring washers.
The fans should be installed upright.
Installation of the fan and additional equipment should conform to the construction
design covering the manner of placing and the fan whilst taking into consideration
strength of the roof structure and tightness of the roofing.
Connection ducts ate the fan suction side should have their own supports and
mountings.
Roof fans mounted on silencers over the roof and ventilation ducts need to perform
adequately durable support structure.
10. ELECTRICAL INSTALLATION
Connections of electrical installation and power supply to the fans must be carried out in accordance
with relevant construction standards and regulations.
Electrical connections to the fans can only be carried out by an authorized electrician
familiar with the instruction manual.
Before connecting make sure that the voltage and frequency rating of the power supply are in
accordance with the data given on the fans data plates. Otherwise, do not connect the device.
The fans are equipped with three-phase (3~400V/50Hz) or single-phase motors (1~230V/50Hz)
which should be power-supplied with the voltage from the main switchgear fitted with main circuit-
breaker and differential protection. The electrical connection of the fan itself should be carried out
taking into account the service switch located directly by the fan, as well as the overload and short-
circuit protection inside the power supply/control box.
Warning! Make sure to provide the required motor protections, otherwise the warranty is
void.
Insert the power cord of the fan motor into the terminal box and fix it on protective grate or supports
of the fan with cable ties.
Electrical connection of the motor must be in accordance with electrical diagrams provided in the
terminal box.
Example of electrical diagrams - Fig. 1 to 4.