Khidmah Chiller Operator Interview Questions and Answers

Chilled water in let pressure is the pressure of the water entering the chiller.

• It is important to monitor the chilled water in let pressure to ensure the chiller is operating efficiently.

• Low pressure can indicate a problem with the system, such as a leak or clogged filter.

• High pressure can also indicate a problem, such as a malfunctioning valve or pump.

• Typical chilled water in let pressure ranges from 40-60 psi.

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There are various types of compressors used in chillers, including reciprocating, scroll, screw, and centrifugal compressors.

• Reciprocating compressors use a piston and cylinder to compress refrigerant gas.

• Scroll compressors use two spiral-shaped scrolls to compress refrigerant gas.

• Screw compressors use two interlocking helical rotors to compress refrigerant gas.

• Centrifugal compressors use centrifugal force to compress