9.7 Fans
9.7 Fans
WARNING:
Each fan is equipped with a fan guard and a lockable service switch. The wire
spacing in the fan guard and the safety distance of the blade correspond to the
European safety standard. The safety guards are protections from contact only.
Do not remove the safety guard before the fan is shut down. The rotating impeller
may catch in your clothes, cut you or pull you in.
Note:
Always check the motors when you are performing service operations.
If the fan makes unusual noise, stop it immediately and check the fixing of the fan and fan motor. When
necessary, replace the motor by a new spare part motor available from Fincoil LU-VE Oy.
Caution:
Operate the IEC-fans for 3…4 hours during stand-stills.
During stand-stills, the power of the EC fan remains on (the fans are rotating with the minimum
speed).
9.8 Acceptable fan vibration level for single operating fan
The manufacturer has tested the vibration levels of the installed fans at the factory. The measurement point
is near the bolt for motor support/collar end, shown in
Figure 45: Location for vibration measurement
page 77. The limits for site vibrations are presented in
Table 11: Vibration limits of fan
on page 78. A
sudden change in the vibration level may indicate the need for prompt inspection or maintenance. Do not use
transitory changes in vibration level that result from relubrication or maintenance for evaluating the condition of
the fan. The vibration sensor is optional for fans.
Figure 45: Location for vibration measurement
©
Alfa LU-VE, Rev-04
77
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
