5
Warning: Suspended loads
• During any work in the vicinity of the fan, the protective equipment must be worn, see 2.2 Personal protective
equipment,
• Never step under suspended load.
• Ensure that no one is under a suspended load.
Delivery
Every fan leaves our factory in perfect electrical and mechanical condition. It is recommended that the fan be transported to
the installation site in its original packaging.
Check delivery
• Check the packaging for transport damage. Any damage must be noted in the cargo manifest.
• Check if the delivery is complete.
Unpacking
Warning
When removing the transport packaging, there is a risk of damage from sharp edges, nails, staples, splinters, etc.
• Carefully unpack the fan.
• Check the fan for obvious transport damage.
• Do not remove the packaging until just before assembly.
• During any work in the vicinity of the fan, the protective equipment must be worn, see . Personal protective
equipment
Transportation
Safety instructions
• The fan must never be carried by the connecting cable, plenum box, impeller, guard grille, inlet nozzle or silencer.
• In the case of open transport, ensure that no water can penetrate the motor or other sensitive components.
• It is recommended that the fan be transported to the installation site in its original packaging.
Caution: Careless loading or unloading may cause damage to the fan.
• Carry out the loading or unloading carefully.
• Use lifting equipment designed for the load.
• Observe the transport arrows on the packaging.
• The packaging serves exclusively as transport protection and must not be used for lifting.
Storage
• Store the fan in its original packaging in a dry, dust-free place protected from the weather.
• Avoid exposure to extreme heat or cold.
Important
Danger due to loss of function of the motor bearing
• Avoid too long storage periods (recommendation: max. year).
• Before installation, check that the motor bearing is working correctly.
5. Description
5.1. Roof fans EC motor series WDV-A
The fans are driven by EC motors. The fans must be controlled with a potentiometer (0-10V). All motors are suitable for
50/60 Hz. The input voltage for single-phase devices is in the range of 200 and 277 V; for three-phase devices, the input
voltage is 380 and 480 V.
The maximum temperature of the pumped medium is +120°C.
Note
When installing EC motors, it must be ensured that the residual current circuit breaker of type
class: B or B+ are present in the circuit.
