ADIABATIC PRE-COOLER SET-POINT
The operation of the adiabatic pre-cooling sections is controlled by the digital controller.
The controller should limit the start and stop to maximum 1 per day per adiabatic pre-cooling side, this to increase
the service life of the pre-cooler media. If the number of daily starts and stops exceeds 1 per day, it is
recommended that the controller's set points are adjusted. The pre-cooler can be operated to allow a higher number
of starts and stops which could reduce total annual water consumption, however, this practice will drastically
reduce the service lifetime of the adiabatic pre-cooler media.
ELECTRICAL CONNECTIONS
Check and tighten electrical contacts if required before commissioning the unit. Transport may loosen some of the
contacts, posing a risk for overheating or voltage drops. Also during operation, half-yearly checks are
recommended.
ROTATION OF FANS
Fans must rotate without obstruction in the direction indicated by arrows on the equipment.
MOTOR VOLTAGE AND CURRENT
Check the voltage and the current of all three legs of the fan motors. The current should not exceed the nameplate
rating. After prolonged shutdown the motor insulation should be checked with a Megger insulation tester prior to
restarting.
The voltage must not fluctuate more than +/-10% and the imbalance between phases must not be greater
than+/-2%.
CAUTION
Do not run/start the fan motor(s) when there is no heat load.
UNUSUAL NOISE AND VIBRATIONS
Unusual noise and/or vibration are the result of malfunctioning of mechanical components or operational problems
(e.g. unwanted ice formation). If this occurs, a thorough inspection of the entire unit followed by immediate
corrective action is needed. If required, consult your local BAC Balticare representative for assistance.
Inspections and corrective actions
GENERAL CONDITION OF THE EQUIPMENT
Once a year the general condition of the equipment should be inspected.
The inspection should focus on:
• Signs of corrosion
• Accumulation of dirt and debris
Smaller damages of the corrosion protection MUST be repaired as soon as possible to prevent the damage from
getting bigger. For Baltibond
®
hybrid coating use kit (part number RK1057). Larger damages should be reported to
the local BAC Balticare representative.
W W W . B A L T I M O R E A I R C O I L . E U
17
6 Maintenance procedure
6 Maintenance procedure
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