NATE Air Conditioning and Heat Pumps Practice Exam

Which statement regarding a packaged unit installation is accurate?

1. Packaged heat pumps are intended for rooftop installations only

2. Packaged heat pumps are more difficult to install than split systems

3. Packaged heat pumps are not available for use in commercial applications

4. The pad used to support a packaged heat pump should not make contact with the building

The correct answer is: The pad used to support a packaged heat pump should not make contact with the building

The statement regarding the pad used to support a packaged heat pump being designed not to make contact with the building reflects best practices in installation. This approach is crucial because it helps to isolate the unit from the structure, reducing the transmission of vibrations and noise, which can be a concern in residential and commercial spaces. Additionally, ensuring that the pad does not touch the building helps prevent any potential moisture issues that can result from condensation run-off or water pooling near the structure. This installation technique also supports stability and prevents shifting during operation, which can lead to performance issues over time. The other options do not accurately represent common knowledge related to packaged heat pump installations. Packaged heat pumps can be installed in various locations, including rooftops and ground-level pads, and their ease of installation compared to split systems can vary based on specific circumstances and existing infrastructure. Furthermore, packaged heat pumps are indeed available for both residential and commercial applications, broadening their usability in different scenarios.