Abstract:
A heating, ventilation, and air conditioning (HVAC) system is described that includes a first unit and a second unit. The first unit comprises a controller configured to output a coded compressor activation signal that is based at least partially on a compressor run signal received from a thermostat. The second unit comprises at least a compressor relay. The second unit is configured to receive and decode the coded compressor activation signal from the first unit and is operable to operate the compressor relay based on the decoded content of the coded compressor activation signal.
Abstract:
A motor is described that includes a motor enclosure, a mid shield, and a motor control unit having a chassis and a plurality of components mounted on the chassis. The motor enclosure includes a plurality of protrusions extending into the motor enclosure. The mid shield is configured for placement within the motor enclosure and configured to engage the protrusions. The mid shield is configured with a plurality of open spaces. The chassis of the motor control unit is configured to engage an end of the motor enclosure and the motor control unit is configured such that at least a portion of the components extend into the motor enclosure and the spaces in the mid shield.
Abstract:
A motor is described that includes a motor enclosure, a motor-bearing assembly, a motor control unit, and a mid shield. The motor-bearing assembly is configured for placement within the motor enclosure, and a portion of the motor control unit is configured for placement within the motor enclosure. The mid shield is configured for placement within the motor enclosure between the motor control unit and the motor-bearing assembly. The mid shield is further configured to allow removal of the motor control unit without disturbance of the motor-bearing assembly.
Abstract:
A motor is described that includes a motor enclosure, a motor winding assembly, a motor control unit, and a mid shield. The motor enclosure includes a plurality of protrusions into the motor enclosure in a substantially configuration around its perimeter and the motor winding assembly is configured for placement within the motor enclosure. A portion of the motor control unit is configured for placement within the motor enclosure and the mid shield is configured for placement within the motor enclosure between the motor control unit and the motor winding assembly where it engages the protrusions upon insertion into the enclosure.