Quote:
Originally Posted by ithos
Varable speed compressors are almost as common as single stage in new installations. (commerical and residential).
I agree there are more means of failure but most can be repaired and on average they last significantly longer than single stage.
Staged compressors
Electrical Stress:
High inrush current puts thermal and magnetic stress on windings and contactors, which can lead to insulation breakdown over time.
Mechanical Stress:
Sudden high torque causes shock loads on mechanical components (compressor shaft, bearings, mounts).
North America HVAC Compressor Market Size Report, 2030 |
I would take issue with your first sentence, especially in The Villages.
Market Share:
While precise market share figures are hard to find, the market for variable speed heat pumps is growing. A 2021 J.D. Power report suggests that variable-capacity central equipment represents only about 5% of central HVAC equipment sales, indicating a larger share for single-speed and two-stage systems. However, the growing focus on energy efficiency and comfort is expected to drive further adoption of variable speed systems.