{"product_id":"oem-goodman-piston-flow-control-kit-for-gsc130484ac-b1789882-1","title":"OEM Goodman Piston \/ Flow Control Kit for GSC130484AC — B1789882","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1789882\u003c\/strong\u003e piston kit is the genuine OEM refrigerant metering device for the \u003cstrong\u003eGSC130484AC\u003c\/strong\u003e 4-ton 13 SEER air conditioner condenser. The piston (fixed-orifice flow control) meters liquid refrigerant into the evaporator at the precise rate the system was engineered for, ensuring correct superheat, full capacity, and rated efficiency. An incorrectly sized orifice causes flooding, starving, or poor SEER performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Refrigerant piston \/ flow-control orifice kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1789882\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e GSC130484AC (4-ton, 13 SEER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetering:\u003c\/strong\u003e Factory-bored to match 4-ton capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Air Conditioner condenser\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e piston is bored to the exact diameter (.0xx\") specified for this tonnage, so the system charges and performs as designed. \u003cstrong\u003eGeneric\u003c\/strong\u003e universal piston kits require you to identify and select the correct orifice yourself — choose wrong and you'll chase charge and capacity problems. The OEM kit removes that guesswork.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAdvanced\u003c\/strong\u003e — Replacement requires recovering the refrigerant, opening the liquid-line connection, swapping the piston, leak-checking, evacuating, and recharging to spec. This is an EPA Section 608 certified job. Have a licensed HVAC technician perform the work.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057198154099,"sku":"GOODMAN-786","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-piston-flow-control-kit-for-gsc130484ac-b1789882-1","provider":"National HVAC Parts","version":"1.0","type":"link"}