Goodman Air Conditioners
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Goodman makes seven different types of residential air conditioners, in different ranges of energy efficiencies. Efficiency is measured by a standard called SEER: seasonal energy efficiency ratio. Goodman's air conditioners can be stratified by this measurement.
13 and 14 SEER
These models are the least expensive and simplest units Goodman makes, and come in two models for each SEER rating.
The GSC13 uses R-22 refrigerant; the GSX13 uses R-410A Chlorine-Free Refrigerant. The latter substance is considered more environmentally friendly because it does not give off hydrochloro-fluorocarbon. (Inert gas is used to prepare the GSC13 for shipping.)
Both models feature sound-dampening elements: a particularly quiet fan and a specially designed top. They make noises of between 71 and 76 decibels.
The GSX14 and SSX14 have some of the same features as the GSX13, such as R410A refrigerant. They both come with ten-year warranties. They also use higher efficiency condenser coils and faster motors to increase the speed and efficiency with which they cool a space. They both have an 850 RPM condenser fan motor.
The SSX16 has all of the above features, along with a sound-dampening foam condenser on top that allows it to operate more quietly. This model is also easier to service. The DSXC16 has some additional features. It is compatible with the ComfortNet Communications System, which is easy to install and allows sophisticated monitoring of the heat flow in the device and in the area.
This model also has high- and low-pressure switches, a filter dryer, and extra features for quiet operation. It has a finish on top of its paint that will preserve its appearance over the years even when exposed continually to weather.
The DSXC18 is a top-of-the-line model. It is Goodman's most efficient and the most sophisticated.
It uses a two-stage compressor, which means it can run at a lower level when there is less total cooling to be done. This makes it quieter and requires less energy. This compressor is a high-performing Copeland Scroll UltraTech.
The air conditioner has temperature sensors for its coil and for the surrounding area, along with indicator lights that alert the operator to errors. It has simple color-coded installation capability and only two (low-voltage) wires need to be run to the outdoor component.
The DSXC18 also has a sound control top manufactured by Goodman. The device operates at between 71 and 74 decibels, which is about the same as the simplest model.
Commercial Air Conditioners
Goodman also manufactures commercial air conditioners. Some of these have specifications that are similar to those of the residential units. Others are substantially larger and heavier. These tend to have lower-energy efficiency because they are designed to cool larger spaces. The largest of these products can weigh up to 20 tons and have SEERs of around 11.
Care and Maintenance
Homeowners can clean and maintain their own heat pumps without much difficulty. If the pump is not cooling enough, it's advisable to check the air filter or the air handler before calling an air conditioner services contractor. The condensing coil is another area to check, because it is unprotected and exposed to dust and outside dirt.
Most residential models have ten-year limited warranties for their parts. The GSC 13 has a 5 year limited warranty for units manufactured after January 1, 2010. Some of the more expensive models also have extra warranties for their compressors. Homeowners can purchase an additional GoodCare package for help with maintenance.