IMO DVV

Operation
DVV 16.08.2021 11
 The safety devices have been fitted (protection against contact with rotating impeller).
 The protective conductor and external earth conductor have been connected.
 The thermal protection is properly connected to the motor protective device:
- the motor protective device is functional;
- the thermal protection is functional.
 The cable glands are tight.
 Provided mains connection complies with the data on the nameplate.
 The current (from the nameplate) does not exceed the mains data.
8.2 Safety elements
DANGER
Hazard from injurie from rotating parts, if not covered with protective grid!
The outlet protective grid is serially provided.
Check if the safety elements e.g. protective grids are fastened.
8.3 Commissioning
WARNING
Hazard from electrical voltage!
 Commissioning by trained and instructed qualified personnel only!
Switch the ventilator on as planned.
WARNING
Hazard from bursting parts!
 When checking the direction of rotation, wear safety goggles.
Check:
- the direction of rotation (all speed!). Switch the fan for a short period on and then off to check the direction
of rotation of impeller. It is visible through a hole on the casing. The rotation must comply with the arrow
on the casing. If wrong, swap two phases.
- leave the fan running, check, if running smoothly (eventual vibrations and noise);
- measure current with appropriate instrument (it may exceed nominal current by a max. 5%);
- tightness of all joints.
Fill in the attached test protocol of the fan and submit it in case of warranty claim.
9 Operation
9.1 Safety notes
WARNING
Hazard from electrical voltage!
 The device may only be operated by persons
- instructed in function and risks,
- who have understood handling and can accordingly react.
 Ensure access only to persons, who can safe handle the device.