{"product_id":"oem-goodman-metering-piston-kit-for-asz130241ag-heat-pump-b1789857","title":"OEM Goodman Metering Piston Kit for ASZ130241AG Heat Pump — B1789857","description":"\u003ch3\u003eOEM Goodman Metering Piston Kit — Part B1789857\u003c\/h3\u003e\u003cp\u003eDial in correct refrigerant flow with the genuine Goodman \u003cstrong\u003eB1789857\u003c\/strong\u003e metering piston (flowrator) kit, a direct-fit component for the \u003cstrong\u003eASZ130241AG\u003c\/strong\u003e 2-ton 13 SEER heat pump. This precision-drilled orifice seats in the liquid line coupling and controls refrigerant flow into the coil, setting proper superheat and system efficiency. Correct piston sizing is essential whenever a coil, compressor, or metering device is serviced.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1789857\u003c\/li\u003e\n\u003cli\u003eComponent: Metering piston \/ orifice (flowrator) kit\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ASZ130241AG heat pump (2-ton nominal)\u003c\/li\u003e\n\u003cli\u003eFunction: Fixed-orifice refrigerant metering\u003c\/li\u003e\n\u003cli\u003eRefrigerant: Factory-drilled for R-410A charge\u003c\/li\u003e\n\u003cli\u003eIncludes: Piston and seals for OEM coupling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOEM vs. Generic\u003c\/h4\u003e\u003cp\u003eThe OEM B1789857 is bored to Goodman's exact orifice diameter for this tonnage, so superheat and subcooling land where the engineering spec intends. An incorrectly sized generic piston causes flooding or starving of the coil, poor capacity, and possible compressor damage. At this price, matching the factory orifice is a clear win.\u003c\/p\u003e\u003ch4\u003eInstallation Difficulty\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eAdvanced (4\/5) — professional recommended.\u003c\/strong\u003e Requires refrigerant recovery, opening the liquid-line coupling to swap the piston, evacuation, and recharge. Sealed-system service that should be handled by a licensed, EPA-certified HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058305581427,"sku":"GOODMAN-16178","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-metering-piston-kit-for-asz130241ag-heat-pump-b1789857","provider":"National HVAC Parts","version":"1.0","type":"link"}