PSC motor

PSC motor

[¦pē¦es¦sē ′mōd·ər]
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This smaller PSC motor would cost $327.35 less than the base ECM, but would result in a reduction in input power from 466 W to 266 W assuming a 70% PSC motor efficiency.
The airflow reduced by 10% for a PSC motor powered blower and did not change for a BPM motor blower as MERV increased - but the BPM motor used 10% more power to maintain the airflow.
A STANDARD TWO-SPEED BLOWER (aka "multi" speed) with a PSC MOTOR has one blower speed for heating and one for cooling.
Comprising 100 per cent speed controllable PSC motor and backward curved impellers, the model provides vibration-free operation with capacities to 1,175 cfm.
Zero Zone has made the PSC motor the standard for its cases and offers the ECM as an option.
Table 12 shows the total annual plant energy for a fixed-airflow series FPTU with a PSC motor and the three capacity factor options for the temperature and airflow control cooling approaches for variable-airflow FPTUs in the five cities.
(2015, 2015b) used different approaches depending on whether an FPTU had a PSC motor or an ECM.
As we look at the equivalent series unit with a PSC motor and an SCR speed controller, it uses nearly the same amount of energy at reduced flow as it does at full flow.
The procedure for estimating power depends on whether the fan has an SCR-controlled PSC motor or an ECM.
(8) Type Units Shipped Life Expectancy To Be Replaced (years) (2010) Room AC 9,085,500 9 5,575,100 Unitary ACs 5,833,354 11 5,353,676 and Heat Pumps Dehumidifiers 1,556,300 7 1,311,039 Furnaces, Gas, 2,300,000 15 (Gas) 2,600,967 (Gas) Warm Air 17 (Oil) 148,803(Oil) Freezers 2,098,000 11 2,420,200 Refrigerators 9,310,000 12 8,773,500 Table 3: Example simple payback: replacing a three-speed PSC motor with a BLDC motor.
Equation 22 can be rearranged to show that the efficiency divided by the pressure drop across the fan can be treated as a constant for a PSC motor with SCR control.