The Goodman CKL42-1A is a split system central home air conditioning unit. This means that the noisier components, such as the condensing components, are placed outside and the quieter components, such as the evaporator coil and fan, are placed indoors.

The compressor unit of a split air-conditioning system is often installed outside.

The SEER rating for this unit is 10.0. SEER is an abbreviation for Seasonal Energy Efficiency Rating. Starting in 2006, AC units manufactured in the United States must have a SEER rating of 13 or higher. The higher the SEER rating, the more efficient the air conditioner is.

The Goodman CKL42-1A was first manufactured in 2002.


The Goodman CKL42-1A is rated at 42,000 BTU per hour. Its SEER rating is 10 and its EER (Energy Efficiency Rating) is 9.5. It operates at 78 decibels (db).


The Goodman CKL42-1A compressor is rated at 17 RLA, (Rated Load Amps) 105 LRA (Locked Rotor Amps) and 1.5 FLA (Full Load Amps). The electric motor is 1/4 horsepower. Its rated outdoor nominal CFM (cubic feet per minute) is 2,200.

Electrical Service

The Goodman CKL42-1A operates on a single phase circuit at either 230 or 208 volts. It uses 4,500 watts per running hour.

Because of its low SEER rating, this air conditioner is considered a mid-efficiency unit.

Other Features

The Goodman CKL42-1A split unit is designed to be mounted outdoors at ground level or on the roof.

Standard features include a quiet operating top discharge, copper tube and aluminum fin coil, completely encased and lifetime lubricated condenser motor and a factory-installed liquid line filter dryer. Also, the standard features include a brass suction and liquid service valve with sweat connections, a hermetically sealed compressor with internal high-pressure relief, fully charged for 15 inches of tubing length, contactor with lug connections and ground lug connection.

The cabinet is made of heavy-gauge, galvanized-steel with proper reinforcement and bracing. The coil guard is steel louvered construction. Finished with gray powder coat paint, the exterior of the cabinet is capable of withstanding up to 500 hours of salt spray. The unit also features Goodman brand sound control design and construction.

There are removable access panels on the outdoor cabinet.