Installation and Troubleshooting of Domestic Refrigerators and Freezers

Question 1

When a refrigerator-freezer has a hot-wall condenser, the unit should be at least ____ form the surrounding surfaces.

Answer 1

2”

Question 2

A refrigerator-freezer thermostat should always be connected into the ____ wire.

Answer 2

hot (ungrounded)

Question 3

Wiring that is used to ground appliances and electrical circuits should be ____ colored.

Answer 3

green

Question 4

When comparing open-circuit voltage to the voltage when the unit is running, the open-circuit voltage should be no more than ____.

Answer 4

5 V higher

Question 5

In a capillary tube system, more refrigerant entering the evaporator than there is heat available to vaporize it may result from a(n) ____.

Answer 5

overcharge of refrigerant

Question 6

Continuous running, no refrigeration, or a condenser that is cooler than normal may indicate a restriction in what devices?

Answer 6

Capillary Tube
Filter-Drier
Screen on the high side

Question 7

Rather than using piercing valves, an alternative method of connecting gauges and charging cylinders to a hermetic system is to use ____.

Answer 7

valve adapters

Question 8

When a domestic appliance’s metering device is clogged with wax, replace the ____.

Answer 8

filer-drier and metering device