DesiCool
5
Commissioning
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CAUTION!
UTION!
UTION!
Commissioning and initial start-up of the unit should be carried out by Munters personnel only.
5.1 Checks before starting up
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Check that the fan motor transportation blocks are removed.
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It is always possible that during transport certain elements work loose due to vibrations. We advise you
to check thoroughly that all screws and nuts, and in particular rotating parts such as turbines, pulleys,
bearings, etc., are tight.
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Turn the fan by hand to make sure that it can rotate freely. Check that no foreign bodies have found
their way into the fan.
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Check that the bearings in the motor and fan are properly lubricated.
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Check that there are no foreign bodies in the unit (or in the ducts) and that the air intakes and outlets
are not blocked.
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Check manually that the dampers are correctly positioned and are able to operate correctly.
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Check the tension and alignment of the belts and readjust if necessary.
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Check all electrical connections.
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Check the direction of rotation of the fans and compressors. Correct direction can be checked on a fan
wheel with an arrow, or by monitoring the change in high and low pressure when a compressor starts.
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CAUTION!
UTION!
UTION!
Rotation direction is checked in the factory meaning that if one motor is rotating in the wrong direction, all motors
are actually rotating in the wrong direction. Phases must then be inverted on the main terminal block. It is still
important to check all motors.
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The cooling coil sections are supplied with drains. Check that they are correctly connected to allow
efficient drainage.
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Fit the air filters. Ensure that the filters are firmly attached to the frame.
NOTE!
Before putting the unit into operation, the bag filters must be protected to avoid the excessive
accumulation of dirt caused by the first use (dust and construction residue in the unit).
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Adjust the differential pressure switches.
5.2 Inspection of evaporative coolers
1. Remove any loose material in the bottom of the water tank.
2. Close the bottom valve and fill the tank with water.
3. Check that the connections are tight.
4. Check the function of each solenoid valve.
24
Commissioning
TEN-DSC-D1401
Summary of Contents for DesiCool
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