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The NEW 816-10DH Electronic Head Pressure Control modulates (varies) condenser fan motor speed in low ambient temperatures, varying the air volume through the condenser consequently regulating head pressure.
In Heat Pump installations, the Heat Pump input is used to observe the presence of 24VAC. Heat Pump Mode “A” and “B” jumpers are configured based on a manufacturer’s method of energizing the reversing (changeover) valve. The Heat Pump will override normal control and allow full speed fan operation when in the heating mode.
Applications
Typically
utilized on air-cooled condenser fan motors found in air conditioning and refrigeration systems. They are used on
the following motor types:
• Single phase single speed
• Open frame
– PSC or shaded pole
• Direct drive, sleeve or ball bearing
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