INTERMEDIATE CONNECTING DEVICES AND ELECTRONICALLY COMMUTATED MOTORS FOR HVAC SYSTEMS

摘要

Intermediate connecting devices and electronically commutated (ECM) motors for HVAC systems are disclosed, as well as methods for their use within the HVAC systems. An interface component device coupled to a system controller and an ECM motor may be configured to receive a first and second signal, and convert the voltage across the received signals to a lower-value voltage signal compatible with the ECM motor. The converted voltage signal may be transmitted to the ECM motor to cause the motor to operate in one of a plurality of operation modes. An ECM motor that includes a tap detection circuit and a processor may be configured to receive a voltage signal from the interface component and detect at which input port the voltage signal is received. The ECM motor may select the operation mode for the motor based on the detection of which input port received the voltage signal.

主权项

1. An apparatus for interfacing a permanent magnet (PM) motor with a Heating, Ventilation, and Air Conditioning (HVAC) system, comprising:
an interface component configured to:
receive a first electrical signal at a first input terminal of a plurality of relays of the interface component;receive a second electrical signal from a system controller via a system controller relay, wherein the second electrical signal is received at a second input terminal of an interface component relay, and wherein the interface component relay is one of the plurality of relays of the interface component;convert the voltage across the first and second input terminals of the interface component relay to a voltage signal that has a lower value than the voltage across the first and second terminals of the interface component relay; andtransmit the voltage signal to one of a plurality of inputs of the PM motor, wherein the transmitted voltage signal causes the motor to operate in one of a plurality of operation modes.