Colasit CMVpro 125, Operating Instructions Manual, Page: 47 / 76

Placement in service | 8
Operating instructions CMVpro 125-400 | Version 1-en 47 / 76
8 Placement in service
8.1 Safety instructions
These safety instructions warn against dangers that can arise when placing the
fan in service.
WARNING Risk of injury when placing the fan in service.
Injuries due to electrical, mechanical, and chemical hazards.
u Installation work on the fan as well as final inspection have been completed
in their entirety
_ Chap. 6 [ } 30], _ Chap. 7 [ } 39].
u Initial and subsequent placement in service is only to be completed by au-
thorized mounting personnel.
u
Secure the isolation switch with a personal padlock to prevent unauthorized
energization until all checks and preparations have been carried out. Hang
tag on isolation switch.
u For free sucking or blowing out installation of the fan:
Before energization, ensure that no one remains in the hazardous area of
the inlet and/or outlet connections.
u
Do not place a fan in service that is iced over. Pieces of ice can then come
off and cause serious injuries and material damage. Do not remove ice from
the fan forcibly or with chemical deicers.
u An electrician is responsible for energization of the fan.
8.2 Carrying out placement in service
Open the shut-off or damper valves of the fan’s supply air duct and discharge
duct.
8.2.1 Check motor rotation direction
Procedure:
• Briefly turn the fan on and off with the isolation switch.
• Check motor rotation direction and compare with direction of rotation arrow
on the fan housing
_
Chap. 4.2 [
}
22]
To check the direction of rotation, observe the fan impeller of the electric motor
or use a motor tester for non-contact determination of the direction of rotation.
• If the direction of rotation is incorrect, have an electrician switch two phase
connections of the isolation switch or in the terminal box of the electric mo-
tor, or, if available, change the direction of rotation on the frequency con-
verter.
8.2.2 Functional test of the frequency converter (FC, optional accessory)
Procedure:
• Test start/stop and acceleration behavior starting at a low frequency
(25 Hz).
• Increase fan speed from minimum to maximum speed
_
Chap. 7.3.2 [
}
43]
• with an external signal from the higher-level controller,