Modern Refrigeration Chapters 51 thru 55

Front

High-side charging involves adjusting a(n)__into position and adding liquid refrigerant through it.

Back

liquid receiver service valve

Front

Liquid line filter-driers should be installed as close as possible to the __.

Back

refrigerant metering device

Front

The best place to install a sight glass is__.

Back

filter-drier and refrigerant metering device

Front

The suction line maintains a gradual slope downward from the evaporator to the compressor in order to__.

Back

aid oil returning to the compressor

Front

Before a system can be operated, a leak test must be performed by building up system pressure using _ _ .

Back

sulfur dioxide

Front

A sensing bulb for a thermostatic expansion valve should never be mounted on the ___ of a tube.

Back

bottom

Front

When a leak test is performed without any refrigerant inside the system, use a(n)__ as the method of leak detection.

Back

electronic leak detector

Front

All of the following devices are used to prevent excessive pressure in the condensing unit, except _ _ . Options: check valves, pressure controls, rupture discs, spring-loaded relief valves

Back

check valves

Front

The stirling cycle, using a three-stage system, can produce temperatures down to

Back

risk of galvanic action

Front

When tubing must be run through a floor or wall, use short runs of __ to protect the tubing.

Back

conduit