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5
Commissioning
Before initial start-up verify that:
1.
Installation and electrical connection have been properly completed.
2.
No foreign material is present within the fan and fan housing.
3.
All necessary safety devices such as guards are in place.
Initial start-up
1.
Briefly switch on the power supply and check if the impeller rotates in the
correct direction. Correct if necessary:
– For 3~ fans interchange any 2 of the 3 phases of the supply.
– For 1~ fans contact your supplier.
2.
Run the fan and check for quiet (no unusual noises), low vibration opera-
tion. Check that the current draw is within the full load limits as listed on
the rating plate and datasheet.
3.
Refer to the troubleshooting section of these instructions if anything
seems out of the ordinary.
1
Impeller rotation direction
2
Airflow direction
6
Operation
Always be alert when the fan is in operation. Immediately switch off and
isolate the fan from the electrical supply if anything seems out of the ordinary.
Refer to the troubleshooting section of these instructions if anything seems
out of the ordinary.
DANGER
If the built-in thermal protection is in series with the power sup-
ply and is activated, the fan motor will automatically re-start af-
ter cooling down.
Risk of injury due to unexpected start.
CAUTION
The fan motor can get hot during operation
Do not touch it to prevent burns
8 | ENGLISH (US)
Infrequent use
If the fan is used less frequently than once per month, run the fan each month
at least 2 hours at full speed to avoid buildup of moisture in the fan motor and
to keep the bearing lubricant in good condition.
7
Maintenance
DANGER
Switch off and completely isolate the fan from the electrical
supply before commencing maintenance.
WARNING
All moving parts must be at a complete standstill before com-
mencing maintenance.
WARNING
Even when electrically isolated, fans may be subjected to free
spinning or „wind milling". Secure the impeller physically to re-
strict rotational movemenent where this poses a risk.
7.1
Maintenance schedule
► Maintenance tasks – TO BE CARRIED OUT EVERY MONTH
1. Examine the fan housing for defects and remove any dirt that has accu-
mulated.
2. Examine the motor and remove any dirt that has accumulated on the
motor and between the motor cooling fins.
3. Examine the impeller for defects and remove any dirt that has accumu-
lated.
4. Examine the condition of the guards (if fitted) and remove any dirt that
has accumulated.
► Maintenance tasks – TO BE CARRIED OUT EVERY 3 MONTHS
1. Check the condition of the bearings.
2. Check the tightness of fasteners and fixings.
► Maintenance tasks – TO BE CARRIED OUT ANNUALLY
1. Only for 1~ fan motors: check the capacitor capacitance.
7.2
Maintenance subjects
Cleaning
In areas of application where high levels of contamination are present,
cleaning intervals should be adjusted accordingly.
Cleaning is preferably done using a soft brush. Do not use any aggressive
detergents, solvents or chemicals for cleaning.
Wet cleaning
Wet cleaning is allowed using low pressure clean water spray. Avoid directing
water jets at bearings and electrical connections as much as possible.
When wet cleaning is planned, close any open condensate drain holes before
commencing wet cleaning.
WARNING
Do not use a high pressure cleaner.
Water may penetrate electrical connections and bearings.
► After wet cleaning
Original instructions
Panel Fan
INS00002- B
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