{"product_id":"oem-goodman-flow-check-piston-restrictor-kit-for-ssx140601aa-b1789888-1","title":"OEM Goodman Flow Check Piston Restrictor Kit for SSX140601AA — B1789888","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1789888 Flow Check Piston Kit\u003c\/strong\u003e is the genuine OEM refrigerant metering device for the \u003cstrong\u003eSSX140601AA\u003c\/strong\u003e condensing unit. This flow-check piston (fixed-orifice restrictor) meters liquid refrigerant into the evaporator at the rate the system was engineered for — using the correct orifice size is essential for proper superheat, subcooling, and rated cooling capacity.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1789888\u003c\/li\u003e\n\u003cli\u003eComponent: Flow check piston \/ fixed-orifice metering device kit\u003c\/li\u003e\n\u003cli\u003eCompatible Model: Goodman SSX140601AA (and matching SSX14 systems)\u003c\/li\u003e\n\u003cli\u003eOrifice: Factory-sized for the unit's rated tonnage\u003c\/li\u003e\n\u003cli\u003eType: Bi-flow flow-check restrictor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e piston carries the exact orifice diameter the system was charged and rated against. A generic or wrong-size piston will meter too much or too little refrigerant, producing poor cooling, frozen coils, or compressor flooding. Because the metering device directly sets system performance, the genuine part is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Hard (HVAC professional required)\u003c\/h3\u003e\u003cp\u003eReplacing a metering device opens the sealed refrigerant circuit. This is a job for an \u003cstrong\u003eEPA-certified HVAC technician\u003c\/strong\u003e — it requires recovering the refrigerant, accessing the piston body, installing the new piston with correct orientation, evacuating the system, and recharging to the proper subcooling. Do not attempt without recovery equipment and certification.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057204511091,"sku":"GOODMAN-868","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-flow-check-piston-restrictor-kit-for-ssx140601aa-b1789888-1","provider":"National HVAC Parts","version":"1.0","type":"link"}