The primary purpose of air-side zoned systems is comfort enhancement and energy savings. This study analyzes the effect of a simulated zoned system with an air bypass on a single-speed, residential, split-system air conditioner and heat pump. The system was tested at steady-state conditions to determine the impact of the bypass on performance (i.e., capacity, power, and EER) and reliability indicators (i.e., compressor suction superheat and discharge superheat). The experimental study was followed by a computer simulation used to predict system measures. Presents and discusses the findings.

KEYWORDS: Steady state, analysis, air conditioning, heat pumps, split heat pumps, models, testing, experiment, laboratory testing, computers, performance, bypasses, zones, heating, energy consumption.