Check the operation of the fan (noise, vibration, the possibility to control the rotation speed).
Operate the fan only with the front bezel installed, as it is a direct touch guard on the suction side. Depending on the actual installation conditions, the fan may require a
protection against touching the moving parts on the delivery side. Suitable delivery-side direct guards can be provided on request. If the fan is guarded against direct
touch due to their installation conditions (e.g. in line with the air ductwork), no direct touch guard is required if the installation conditions provide an equivalent level of
safety. Note that the fan user is liable for compliance with current safety standards and may be held liable for accidental injury or death caused by failure to provide the
required safety equipment.
Electrical connections
•
Electrical connections and commissioning of the fan shall only be completed by qualified professional electricians.
•
Always follow the applicable standards, safety regulations and technical requirements specified by the power company!
•
The power supply line for the fan requires a multi-pole circuit breaker / isolation switch with a minimum contact break gap of 3 mm (ref. PN-EN 60335-1)!
•
The mains system, voltage and frequency must match the nameplate ratings of the fan.
•
Fans with the stop delay timer: the maximum voltage limit on terminal T to initiate the stop delay time countdown or start the fan is approx. 130 V AC.
Dimensions
The dimensions of specific fan models are shown in Fig. 6.
MAINTENANCE AND CLEANING
Servicing and maintenance
•
Use protective footwear and gloves during maintenance!
•
During all maintenance and servicing works the electrical and OHS regulations (PN-IEC 60364-3) must be observed.
•
Before servicing the fan, isolate it from the mains voltage with the circuit breaker. Secure the circuit breaker against inadvertent operation!
•
The fan ductwork must be clear of foreign bodies: hazard of injury by objects blown out at a high speed!
•
Do not attempt any maintenance when the fan is running or at live voltage!
•
If excessive vibrations are felt or heard, have the technical inspection carried out by a qualified electrician.
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