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Author Archives: Anonymous

The purpose of a compression chiller economizer is to improv…

The purpose of a compression chiller economizer is to improve system efficiency by _____.

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Cylinder unloading is used on _____ compressors.

Cylinder unloading is used on _____ compressors.

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When an air-side economizer takes control of a system, the _…

When an air-side economizer takes control of a system, the _____.

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The purpose of a wet deck in a cooling tower is to _____.

The purpose of a wet deck in a cooling tower is to _____.

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An air-side economizer with enthalpy control will not turn o…

An air-side economizer with enthalpy control will not turn on when _____.

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To prevent pressure equalization during the Off cycle in a s…

To prevent pressure equalization during the Off cycle in a system with a scroll compressor, the best place to install a check valve would be _____.

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Modern compression chiller systems typically use _____ as a…

Modern compression chiller systems typically use _____ as a secondary refrigerant.

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In a(n) _____ cooling tower, a fan is placed at the air exha…

In a(n) _____ cooling tower, a fan is placed at the air exhaust to draw air into the tower through a louver on an opposing side, across the wet deck, and out through a fan.

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AHRI recommends that chillers operate at a chilled water tem…

AHRI recommends that chillers operate at a chilled water temperature of _____.

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A cooling tower that distributes water passively out of prec…

A cooling tower that distributes water passively out of precision holes uses a _____.

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