NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
EFFECT OF INSTALLATION FAULTS ON THE PERFORMANCE OF A SPLIT AIR CONDITIONER
Published
Author(s)
Piotr A. Domanski, Hugh Henderson, William V. Payne
Abstract
The study analyzed the effect of common installation faults on the cooling performance of a residential, split air conditioner installed in a single-family, slab-on-grade house. We considered five climatic regions in the United States from hot/humid to cold. Through annual simulations of the house/air conditioner system, the study found that air conditioner oversizing with non-oversized ductwork, duct leakage, refrigerant undercharge, undersized refrigerant expansion valve, and low indoor airflow have the most potential for causing significant performance degradation and increased annual energy consumption. A significant increase in annual energy use can be caused by lowering the thermostat setting to improve indoor comfort in cases of excessive indoor humidity levels due to installation faults.
Proceedings Title
ICR2015-24th IIR International Congress of Refrigeration
Domanski, P.
, Henderson, H.
and Payne, W.
(2015),
EFFECT OF INSTALLATION FAULTS ON THE PERFORMANCE OF A SPLIT AIR CONDITIONER, ICR2015-24th IIR International Congress of Refrigeration, Yokohama, JP, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918239
(Accessed October 13, 2025)