33% to 66% Less Energy with EC Fan Motors
Basically, an EC fan motor is a brushless DC motor using a normal AC supply — utilizing the inherent advantages of both technologies to produce a component that “moves more air, more quietly using 33% to 66% less energy” than its SP and PSC counterparts. The EC motor incorporates the AC to DC voltage transformation within the motor. The non-rotating part of the motor (stator) is extended to make room for an electronic PCB board which includes power transformation of AC to DC, as well as the electronic controls.
2X the Efficiency of PSC and 4X the Efficiency of SP Fan Motors
Typically, AC motors have losses in terms of power consumption (copper + iron losses), slippage and frictional losses (mechanical power). EC motors have no such slippage losses, translating to increased efficiency through less power required to do the job of moving the same amount of air. In general, shaded pole (SP) motors range from 15-25% efficiency, permanent split capacitor (PSC) motors range from 30-50% efficiency and EC motors achieve 60-75+% efficiency.
EC technology motors have a near flat efficiency curve which barely varies across the speed range — a range not limited by synchronous speeds or susceptible to voltage variations like its AC counterpart. Its AC equivalent will operate at a precise point on the curve which equates to its maximum efficiency, either side of this point and the efficiency diminishes. EC fan motors can be programmed to operate at the exact speed needed without wasting energy.
A Single Drop-In Retrofit Is the Perfect Fit for Every Case
And now, here’s the really good news — you don’t have to spring for new cases in order to reap the benefits of ECM fan motors for your operation. With easy-to-install evaporator fan retrofits from the Hillphoenix AMS Group, you can start enjoying the benefits and energy savings immediately. The fan retrofits feature an EC motor with fiberglass-reinforced plastic blades, orifice, and fan basket all in one durable, pre-constructed unit that’s optimized for noise reduction and airflow. Models are available to fit plenums in all islands, cases and walk-in evaporators.
Installation is a breeze! Easy connection — no complicated wiring and set-up. With the push of a few buttons, a hand-held digital programmer sets the optimal fan speed without needing to replicate the blade pitch of the fans you’re replacing.