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On receipt the fan must be visually inspected, and the shipment must be checked for proper
quantity.
3.2 Storage
Store the fans in a dry, weather and dust protected place. If this is impossible, it is important
to raise the fan above the ground surface and cover it with a PE foil.
4.0 INSTRUCTIONS FOR INSTALLATION
4.1 Inspection before installation
Each fan is controlled by the manufacturer before delivery.
After unpacking and before installing, check the following:
•
if any eventual damage occurred during transport;
•
mounting of service switch and vertical outlets (DVG-V only) up to Appendix 1;
•
check by hand if impeller is rotating smoothly.
4.2 Safety instructions for installation, commissioning, maintenance and controlling
Installation and electrical connection must be accomplished only by
authorized technical personnel and in agreement with the valid regulations.
Any hazard of unintended touching the impeller (risk of injury!) has to be
prevented (with a duct long enough or a protective guard)!
Commissioning is allowed only after installation into the ventilation system
or after installation of protective guard (EN 13857). After installation impeller
must not be accessible anymore.
During
installation,
commissioning,
maintenance
and
controlling,
unauthorized personal should not have access to the fan and installation
place.
Any risk of unintended start-up of the fan and any risk of touching the
impeller during above mentioned works has to be excluded (switch off the
fan and exclude possibility of unintended start-up).
Before removing the casing cover, protective guard on the pressure side or
an eventual protective guard on the suction side make sure the fan is
separated from the mains supply.
Common rules for safety work have to be strictly observed.
4.3 Installation of the fan
•
Fans type DVG should be installed outside fire zones (on roofs over heated buildings);
•
Fans DVG must not be mounted in explosion hazardous zones;
•
Before installation check the carrying capacity and stability of the roof;
•
Fans must be installed upright in a vertical position (shaft vertical) and raised above the roof
surface on a base with minimum height of 250 mm (respectively according to expected snow
height);
•
The fan shall be fixed to the base with 4 screws on the corners;
•
The fan housing should not be deformed during mounting;
•
Check, if impeller rotating smoothly;
•
Access to the fan for maintenance must be assured.
