Serak-tech VNCF, User Manual, Page: 6 / 28

6
Don't use the fan for operation in explosive dust-air mixture environment.
Do not operate the fan beyond the specified operating temperature conditions as well as
in environments containing aggressive mixtures.
Take precautions to prevent penetration of smoke, carbon monoxide and other flame
products into the room through open chimney flues or other fire-protection devices.
Take also measures to disable gas back draft in case of using gas or open flame devices.
The operating medium must not contain any dust or other solid particles, sticky
substances and fibrous materials.
The fan operation in the environment containing flammable substances or vapours such
as spirit, gasoline, insecticides etc. is not allowed.
Do not close or block unit inlet and outlet vents to ensure the most effective air passage.
Do not sit or put objects on the unit.
The owner of the goods should follow the requirements set forth herein.
PROHIBITED: PROHIBITED:
!
Disconnect the fan from power mains prior to all installation, connection, adjustment and
repair works.
!
WARNING
WARNING
VNCF