Amana-Goodman B1789876 Piston

The Amana-Goodman B1789876 Piston is a precision-engineered .76 flow check piston designed to regulate refrigerant flow with exacting accuracy. Crucial for maintaining the efficiency of HVAC expansion valves, this authentic Goodman OEM replacement part ensures your air conditioning or heat pump system operates at peak thermal performance. By facilitating the correct pressure drop across the evaporator coil, this metering device prevents liquid slugging and optimizes cooling cycles. Constructed from high-grade materials to withstand high-pressure environments, the B1789876 flowrator piston is compatible with a wide range of Amana, Goodman, and Janitrol residential units. Utilizing genuine Amana HVAC components guarantees seamless integration with existing liquid line assemblies, reducing energy consumption and preventing premature compressor wear. This specialized refrigerant flow control component is essential for technicians performing routine maintenance or critical system repairs to restore factory-spec cooling capacity.

• Ensures precise refrigerant metering for consistent indoor climate control.
• Optimizes system efficiency by maintaining the ideal flow check rate of .76.
• Durable construction specialized for R-410A and R-22 high-pressure applications.
• Reduces operational strain on the compressor by preventing improper refrigerant distribution.

How do I know if the .76 piston size is correct for my AC unit?
Piston sizing is determined by the outdoor unit's tonnage and SEER rating; always refer to the charging chart on the access panel to verify that a .76 orifice is specified for your match-up.

Can this flow check piston be used in both cooling-only and heat pump systems?
Yes, the Amana-Goodman B1789876 is designed to allow free flow in one direction and metered flow in the other, making it suitable for bi-directional heat pump applications.

Where is the flowrator piston located in the HVAC system?
This component is typically installed inside the distributor body at the inlet of the indoor evaporator coil, connected to the liquid line.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.