{"product_id":"runtru-m5ths1918a11na-outdoor-heat-pump-ductless-mini-split-18-000-btu-19-seer","title":"Trane M5THS1918A11NA Ductless Heat Pump Condenser 18000 Btu\/h 19 Seer R-454B 208-230V 1-phase","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Trane M5THS1918A11NA is an 18,000 BTU\/h outdoor condensing unit for a ductless mini-split heat pump system, operating on R-454B refrigerant at 208-230 volts, single phase. Part of the Trane RunTru ductless lineup, this unit delivers 19 SEER efficiency and provides both cooling and heating in a single outdoor unit. It is designed for residential and light-commercial applications where a ducted system is impractical or unavailable. Licensed HVAC technicians handle installation and commissioning of this equipment.\u003c\/p\u003e\n\u003cp\u003eThe M5THS1918A11NA is suited for residential spaces such as room additions, garage conversions, sunrooms, and multi-zone applications where zoned comfort control is needed without existing ductwork. The unit pairs with a compatible Trane RunTru indoor wall-mount air handler to complete the split system. One compatible indoor unit is the M5MHWUN18A1N0A. The system is appropriate for single-zone residential heat pump installations in moderate to cold climates, with a stated heating operating range down to -13 degrees F.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18,000 BTU\/h cooling capacity at 19 SEER efficiency rating\u003c\/li\u003e\n  \u003cli\u003eR-454B refrigerant — a lower-GWP, A2L next-generation refrigerant replacing R-410A\u003c\/li\u003e\n  \u003cli\u003eSingle-phase, 208-230 volt power supply for standard residential electrical service\u003c\/li\u003e\n  \u003cli\u003eHeat pump operation provides both heating and cooling from a single outdoor unit\u003c\/li\u003e\n  \u003cli\u003eHeating operation rated down to -13 degrees F outdoor ambient temperature\u003c\/li\u003e\n  \u003cli\u003eDuctless outdoor condenser design for flexible placement and minimal structural modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with a compatible Trane RunTru 18,000 BTU ductless indoor air handler, such as the M5MHWUN18A1N0A, to form a complete ductless heat pump split system. Verify indoor unit compatibility with Trane product documentation before ordering.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by an EPA Section 608 certified HVAC technician familiar with A2L refrigerant handling procedures, as R-454B is a mildly flammable refrigerant class. De-energize the disconnect and follow lockout\/tagout procedures before any service work. The outdoor unit requires a level, structurally sound pad or wall-mount bracket and adequate clearance on all sides per manufacturer specifications. Follow all applicable local mechanical and electrical codes, including NEC requirements for disconnect sizing and wiring.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCooling Capacity\u003c\/strong\u003e: 18,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSEER Rating\u003c\/strong\u003e: 19\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefrigerant Type\u003c\/strong\u003e: R-454B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 208-230 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhases\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeating Operating Temperature Range\u003c\/strong\u003e: -13 to 75 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiquid Line Size\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit Type\u003c\/strong\u003e: Outdoor Condenser (ODU)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Series\u003c\/strong\u003e: RunTru 19 Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Trane\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: M5THS1918A11NA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRANE","offers":[{"title":"Default Title","offer_id":51217053974834,"sku":"M5THS1918A11NA","price":1066.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/308797316.webp?v=1780588668","url":"https:\/\/voomisupply.com\/products\/runtru-m5ths1918a11na-outdoor-heat-pump-ductless-mini-split-18-000-btu-19-seer","provider":"Voomi Supply","version":"1.0","type":"link"}