Chiller System Quiz

If the purge unit on a chiller is operating very frequently, the system may have a leak.

• True

• False

After chemically cleaning a condenser, it is extremely important to make sure that the chemicals are neutralized or the tubes may be damaged.

• True

• False

The operation of chillers involves starting, running, and stopping the system’s components in an orderly manner.

• True

• False

Low-pressure chillers operate in a vacuum and will stay in a vacuum if the equipment room is not warm enough to keep the refrigerant warm.

• True

• False

If an absorption chiller makes an "ice-crackling" sound, it is an indication that no condenser water is flowing.

• True

• False

The first step in starting a chilled-water system is to ____.

• activate the compressor unloading system

• establish the chilled-water flow

• activate the condenser heat removal system

• start the compressor operation sequence

Chillers manufactured in the last few years all have ______ controls.

• electronic

• hydraulic

• pneumatic

• pressure-based

A typical chilled water system is designed to operate with a leaving water temperature of ______ °F.

• 35

• 40

• 45

• 50

There should be a ______ test point at the inlet and outlet of any water heat exchanger, chiller, or condenser.

• temperature

• pressure

• vapor

• moisture

Reciprocating chillers have crankcase heaters to ____.

• preheat the chilled water for better efficiency

• prevent refrigerant migration to the crankcase

• preheat the compressor bearings for longer wear

• minimize condenser subcooling