{"product_id":"dometic-replacement-4-ton-accumulator-for-rv-air-conditioning-systems","title":"Dometic AC Accumulator - 4-Ton Capacity - Fits DM Series Air Conditioners - Part# 290331984","description":"\u003cdiv class=\"erp-pdp\"\u003e\n\n\u003cp\u003eThe Dometic 290331984 AC Accumulator is a critical refrigerant system component designed for 4-ton Dometic DM Series rooftop air conditioners. This accumulator prevents liquid refrigerant from entering the compressor, protecting your AC system from damage while ensuring optimal cooling performance. If your RV air conditioner is experiencing reduced cooling capacity, compressor noise, or refrigerant system issues, this OEM accumulator may be the replacement part you need.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:800;color:#dc2626;margin:32px 0 16px;padding-bottom:10px;border-bottom:3px solid #dc2626;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"line-height:1.8;margin-bottom:24px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ton Capacity:\u003c\/strong\u003e Engineered specifically for high-capacity Dometic DM Series commercial-grade RV air conditioning systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor Protection:\u003c\/strong\u003e Separates liquid refrigerant from vapor to prevent liquid slugging and compressor damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Quality Construction:\u003c\/strong\u003e Genuine Dometic replacement part built to original equipment specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant System Component:\u003c\/strong\u003e Essential part of the AC refrigeration cycle that ensures proper system operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fit Replacement:\u003c\/strong\u003e Designed to fit DM Series units without modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:800;color:#dc2626;margin:32px 0 16px;padding-bottom:10px;border-bottom:3px solid #dc2626;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table table-bordered table-sm\" style=\"margin-bottom:24px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:600;background:#f8f9fa;width:40%;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e290331984\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:600;background:#f8f9fa;\"\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e4-Ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:600;background:#f8f9fa;\"\u003eCompatible Series\u003c\/td\u003e\n\u003ctd\u003eDometic DM Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:600;background:#f8f9fa;\"\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003eAC Accumulator (Refrigerant System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:600;background:#f8f9fa;\"\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eRooftop RV Air Conditioner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:800;color:#dc2626;margin:32px 0 16px;padding-bottom:10px;border-bottom:3px solid #dc2626;\"\u003eCompatible Models\u003c\/h2\u003e\n\u003ctable class=\"table table-bordered table-sm\" style=\"margin-bottom:24px;\"\u003e\n\u003ctr style=\"background:#f8f9fa;font-weight:600;\"\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDM Series\u003c\/td\u003e\n\u003ctd\u003e4-Ton Dometic Commercial RV Air Conditioners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:800;color:#dc2626;margin:32px 0 16px;padding-bottom:10px;border-bottom:3px solid #dc2626;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cstrong style=\"color:#333;font-size:16px;\"\u003eQ: What does an AC accumulator do in my RV air conditioner?\u003c\/strong\u003e\n\u003cp style=\"margin:8px 0 0 0;line-height:1.6;\"\u003eThe accumulator acts as a reservoir that separates liquid refrigerant from refrigerant vapor before it reaches the compressor. This prevents liquid refrigerant from entering the compressor, which could cause severe damage. It also stores excess refrigerant and oil, ensuring smooth system operation during varying load conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cstrong style=\"color:#333;font-size:16px;\"\u003eQ: How do I know if my AC accumulator needs replacement?\u003c\/strong\u003e\n\u003cp style=\"margin:8px 0 0 0;line-height:1.6;\"\u003eCommon signs include reduced cooling capacity, frost buildup on refrigerant lines, unusual compressor noises, or if your AC technician has identified refrigerant system contamination. Accumulators should also be replaced whenever the compressor is replaced or if the system has been opened for extended periods.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cstrong style=\"color:#333;font-size:16px;\"\u003eQ: Can I install this accumulator myself?\u003c\/strong\u003e\n\u003cp style=\"margin:8px 0 0 0;line-height:1.6;\"\u003eAccumulator replacement requires recovering refrigerant, brazing or soldering refrigerant lines, evacuating the system, and recharging with the correct amount of refrigerant. This work requires EPA certification and specialized HVAC tools. We recommend having a certified RV AC technician perform this installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cstrong style=\"color:#333;font-size:16px;\"\u003eQ: Is this accumulator specific to 4-ton systems only?\u003c\/strong\u003e\n\u003cp style=\"margin:8px 0 0 0;line-height:1.6;\"\u003eYes, this accumulator is engineered specifically for 4-ton capacity Dometic DM Series air conditioners. Using the wrong capacity accumulator can result in improper refrigerant flow, reduced cooling performance, and potential compressor damage. Always verify your AC unit's tonnage before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:800;color:#dc2626;margin:32px 0 16px;padding-bottom:10px;border-bottom:3px solid #dc2626;\"\u003eWhy Choose Elkhart RV Parts?\u003c\/h2\u003e\n\u003cp style=\"line-height:1.8;margin-bottom:16px;\"\u003eAt ElkhartRVParts.com, we specialize in hard-to-find Dometic RV air conditioning components like this 4-ton accumulator. Located in Elkhart, Indiana — the RV Capital of the World — we understand the unique needs of RV owners and technicians. We stock genuine OEM Dometic parts that meet original equipment specifications, ensuring proper fit and reliable performance. Our expert support team can help you identify the correct part for your specific DM Series air conditioner, and we offer fast shipping to get your RV cooling system back in operation quickly.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f3f4f6;border-left:4px solid #dc2626;padding:16px;margin-top:24px;\"\u003e\n\u003cstrong style=\"color:#dc2626;\"\u003e⚠ Professional Installation Recommended:\u003c\/strong\u003e Refrigerant system work requires EPA certification, specialized tools, and proper safety procedures. Have a qualified RV AC technician install this component.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Dometic","offers":[{"title":"Default Title","offer_id":48315044003992,"sku":"290331984","price":384.37,"currency_code":"USD","in_stock":true}],"url":"https:\/\/elkhartrvparts.com\/products\/dometic-replacement-4-ton-accumulator-for-rv-air-conditioning-systems","provider":"Elkhart RV Parts","version":"1.0","type":"link"}