Hvac Home Inspectors Exam Study Guide

electric heaters have whats known as {Ans: sequencers. elements that come on delayed to have a gradual build up in electrical current}inadequate air is serious. the incomplete combustion will generate carbon monoxide. lack of diluted air will result in {Ans: backdraft (spillage), and dump CO into room}the return line (suction line) is insulated to prevent {Ans: sweating on the pipe, if it did not have insulation it would drip all over the house}1 ton equals ______ BTU's {Ans: 12000 BTU's (ton means the amount of heat needed to melt a 1 ton block of ice)}how long do compressors last {Ans: 10-15 years. compressor is the most expensive part of ac unit}the freon or refrigerant enters the evaporator coil in the house as {Ans: a liquid}incomplete combustion is the cause of {Ans: carbon monoxide}a continuous passageway in attic of solid flooring at least ______ wide, with work area of {Ans: 24 inches wide, and work area of 30x30}a 3 ton ac unit will produce how much condensation {Ans: 2 gallons an hour}any thermostat covers that are damaged should be {Ans: reported}the refrigerant enters the condenser coil from the compressor as a