Start-Up And Commissioning; Dcv Condensers - General - BAC DCV Series Rigging And Installation Instructions

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DCV

DCV-AD

START-UP AND COMMISSIONING

ROTATION OF FANS

Fans must rotate without obstruction and must rotate in the correct direction, which is 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%.

UNUSUAL NOISE AND VIBRATIONS

Unusual noise and/or vibration are the result of malfunctioning of mechanical components or operational problems.

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.

PURGE REQUIREMENTS

The installer of BAC condensers and closed circuit cooling towers must provide a proper system purging, which

enables purging air from the coils prior to operation. Entrained air can obstruct free drainage of cooling medium and

reduce thermal capacity. All connections (installed by others) must be leak free and tested accordingly. To verify

absence of non condensables in the refrigeration system, follow the instructions in the BAC Application Handbook

– EU Edition (http://www.baltimoreaircoil.eu/sites/BAC/files/BAC_Application_Handbook_EU-EDV.pdf), section

"Condenser Engineering Guidelines" on page 51.

5 Start-up and Commissioning

W W W . B A L T I M O R E A I R C O I L . E U

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