Kruger APL Series Manual de instrucciones
1
General Instructions
(Propeller Fan)
APL Series (SA)
INTRODUCTION
This manual is to assist the engineer to avoid the most common fan problems caused by
improper storage, installation, operation and maintenance. HANDLING AND MAINTENANCE
SHOULD ALWAYS BE PERFORMED BY EXPERIENCED AND TRAINED PERSONNEL.
RECEIVING, HANDLING AND STORAGE
Rough handling during shipment and improper storage can cause damage that is not noticeable
until the fan is in operation. This can be avoided with proper storage and handling techniques.
Fan should be hoisted with slings placed around the fan housing. Touch up the scratch coated
surfaces during lifting, to prevent corrosion to occur at this area. Store the fan in a clean and
dry place, preferably indoor to ensure fan shaft, bearing and fan casing are protected against
dust and corrosion. Do not store the fan in a location where it will be subjected to vibration.
This can cause the internal surface to rub against each other and damage the bearings.
INSTALLATION
Ensure that suitable fastener is used for each of the mounting holes in the panel.
Ensure that the fan panel and drive components are not bent or twisted during installation.
Fan should be installed so that any obstructions will not be within 1 Diameter of the fan inlet
and outlet.
Ensure that the fan orientation is correct for the required air flow direction.
FAN PANEL
PROTECTION NET
WALL
(INDOOR) (OUTDOOR)
EXHAUST (Direction A)
SUPPLY (Direction B)
IGB063.E0/2311
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ELECTRICAL CONNECTION
Before carrying out any installation or wiring of the range ensure that the mains electrical
supply is disconnected.
Before making any electrical connections ensure that the voltage and frequency of the
mains electrical supply matches that of the fan data plate label (maximum permissible
deviation of voltage and frequency +/- 5%).
All models must be wired in accordance with the enclosed instructions and the direction of
rotation must be checked.
The earth connection must be connected and checked for continuity before leaving the
installation.
In addition it is important to check that the wires within the terminal block/box are
separated and the wires are correctly and firmly tightened within the terminal block and
that the connection box lid is required.
Fan wiring must be strictly in accordance with wiring diagram with a reliable grounding and
no loosening phenomenon, otherwise it may cause motor burning and personal accidents.
Electrical connection must be done by a specialized electrician or a person with
professional electrical knowledge and operation skills
WIRING DIAGRAM
For APL (SA) 315 to 560 For APL (SA) 630
IGB063.E0/2311
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START – UP CHECK LIST
Before putting any fan into initial operation, the manufacturer’s instruction must be followed.
Complete the following checklist to make sure that the fan is ready to run.
Lock out the primary and all secondary power sources.
Ensure that all fastener, particularly impeller fastener, are tight prior to start-up. Do not re-
use locking fasteners.
Regularly check impeller fastener for tightness.
Spin impeller to see whether it rotates freely and is not grossly out of balance.
Inspect impeller for correct rotation for the fan design.
Properly secure all safety guards.
Switch on the electrical supply and allow the fan to reach full speed.
Check carefully for :- (1) Excessive vibration
(2) Unusual noise
(3) Proper amperage and voltage values
If any problem is indicated, SWITCH OFF IMMEDIATELY. Lock out the electrical supply, secure
the fan impeller and check carefully for the cause of the trouble and correct as necessary.
The fan may now be put into operation but during the first 8 hours of running, it should be
periodically observed and checked for excessive vibration and noise. Checks should be make
of motor input current and motor temperature to ensure that they do not exceed
manufacturer’s recommendation. After 8 hours of operation, the fan should be shut down
to check all set screws and hold-down bolts.
ROUTINE MAINTENANCE
Maintenance should always be performed by experienced and trained personnel. Do not
attempt any maintenance on a fan unless the electrical supply has been locked out or
tagged out and the impeller has been secured.
Under normal circumstances, handling clean air, the fan should require cleaning only about a
year. However, the fan should be checked at regular intervals to detect any unusual
accumulation.
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The fan impeller should be specially checked for build-up of material or dirt which may cause
an Imbalance with resulting undue wear on bearings and belt drives. A regular maintenance
program should be established as needed to prevent material build-up.
Periodic inspection of the rotating assembly must be made to detect any indication of
weakening of the rotor because of corrosion, erosion, or metal fatigue.
TROUBLESHOOTING
SOLUTIONPOSSIBLE CAUSESPROBLEM
Rebalancing by specialist or contact
KRUGER
Impeller imbalance
Fan operates unevenly Clean the impeller carefullyImpurities on the impeller
Replace impeller or contact KRUGERImpeller deformation
Ensure the fan is installed firmlyVibration
Disconnect power supply and
corrected following wiring diagram
Connection malfunction
Motor is not in operation
Ensure supply voltage within
recommended range
Supply voltage issues
Allow the motor cool down and
determine the cause of an overload
or excessively high ambient
temperature.
Thermal protection has
been activated
Remove blockage.Inlet or outlet is blocked
Insufficient air output Check opening position
Flow regulator is partially
opened
Check whether the impeller is
deformed
Impeller interferenceAbnormal noise
IGB063.E0/2311
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