Transcription of ELECTRONICALLY COMMUTATED MOTORS Part 2: Constant …
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ELECTRONICALLY COMMUTATED MOTORS Part 2: Constant …
Constant -AIRFLOW, VARIABLE-SPEED (OEM)INDOOR BLOWER ECMsTheconstant-airflow(variable-speed) ECM wasintroduced in 1987 by GE (rebranded Genteq in2009). It was the first and only indoor blower ECMuntil the introduction of the Constant -torque ECM in2006. The term variable-speed motor was coined inthe late 1980s. By function it is a Constant -airflowmotor. Both of these terms define the type or style of ECM and how it is programmed to MOTORS are built in 1 3-, 1 2-, 3 4-, and 1-hp sizes, and only in direct-drive MOTORS have gone through many generationalimprovements in their more than 20 years ofexistence, including advances in reliability andcommunication formats, as well as changes in theirphysical appearance.
follow the HVAC OEM’s instructions in selecting the proper airflow and comfort settings to match the components and desired operation. These settings are typically selected by using jumper pins, dip switches, and/or multi-pin plugs on the OEM control board 3 900 1000 1100 1200 1300 1400 1500 1600 1700 0.0 0.2 0.4 0.6 0.8 1.0 Airflow, cfm ...
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