Inhibiting compressor backspin via a condenser motor

摘要

Assemblies for HVAC systems and methods of operating HVAC systems are disclosed, including a method of operating an HVAC system having a compressor assembly and a condenser assembly. The compressor assembly includes a compressor having a compressor motor that is susceptible to backspinning and capable of generating electric power when backspinning. The condenser assembly includes a condenser motor operatively coupled to a fan. The condenser assembly is electrically coupled to the compressor assembly. The method includes using the condenser motor as an electric load to dissipate electric power generated by the compressor motor when the compressor motor backspins.

主权项

1. An assembly for an HVAC system, the assembly comprising:
a compressor assembly including a compressor having a compressor motor; and a condenser assembly including a condenser motor operatively coupled to a fan; the compressor motor susceptible to backspinning due to a reverse refrigerant flow through the compressor assembly and the condenser assembly, the compressor motor capable of generating electric power when backspinning; the condenser assembly electrically coupled to the compressor assembly and configured to dissipate electric power generated by the compressor motor when the compressor motor backspins due to the reverse refrigerant flow through the compressor assembly and the condenser assembly by using the electric power generated by the backspinning compressor motor to operate the condenser motor or supply a DC or low frequency current to the condenser motor.