{"product_id":"goodman-3-5-ton-14-3-seer2-heat-pump-split-system-r32","title":"Goodman 3.5 Ton 15.2 SEER2 R32 Heat Pump Split System | GLZS4BA4210A\/ AMST42CU1300A","description":"\u003cstyle\u003e.gm-product{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1a1a2e;line-height:1.6;max-width:100%;overflow-wrap:break-word}.gm-product *{box-sizing:border-box}.gm-product h2,.gm-product h3{margin-top:0}.gm-product p{margin:0 0 12px}.gm-product a{color:#cc0000;text-decoration:none}.gm-product a:hover{text-decoration:underline}.gm-badges{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 32px}.gm-badge{display:inline-flex;align-items:center;gap:8px;background:#f0f4f8;border:1px solid #d1dce6;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:600;color:#2d3748}.gm-badge 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16px}.gm-warranty-years{font-size:28px;font-weight:800;color:#cc0000}.gm-warranty-label{font-size:13px;color:#64748b;margin-top:4px}.gm-callout{background:#eff6ff;border:1px solid #c7d2fe;border-radius:12px;padding:20px 24px;margin:24px 0;display:flex;align-items:flex-start;gap:12px;font-size:14px;color:#3730a3;word-break:normal;overflow-wrap:anywhere}.gm-callout svg{flex-shrink:0;margin-top:2px}.gm-callout\u003ediv{flex:1;min-width:0}@media(max-width:768px){.gm-perf-cards{grid-template-columns:repeat(2,1fr)}.gm-features{grid-template-columns:1fr}.gm-components{grid-template-columns:1fr}.gm-warranty-grid{grid-template-columns:1fr}.gm-sound{grid-template-columns:repeat(2,1fr)}.gm-section{margin:32px 0}.gm-section h2,.gm-section-title{font-size:20px}}@media(max-width:480px){.gm-perf-cards{grid-template-columns:1fr}.gm-perf-card-num{font-size:28px}.gm-sound{grid-template-columns:repeat(2,1fr)}.gm-sound-db{font-size:18px}.gm-badge{font-size:12px;padding:6px 12px}}\u003c\/style\u003e\n\u003cdiv class=\"gm-product\"\u003e\n\u003cdiv class=\"gm-badges\"\u003e\n\u003cspan class=\"gm-badge gm-badge--system\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"3\" y1=\"9\" x2=\"21\" y2=\"9\"\u003e\u003c\/line\u003e\u003cline x1=\"9\" y1=\"21\" x2=\"9\" y2=\"9\"\u003e\u003c\/line\u003e\u003c\/svg\u003eComplete Heat Pump Split System\u003c\/span\u003e\n\u003cspan class=\"gm-badge gm-badge--accent\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M22 11.08V12a10 10 0 11-5.93-9.14\"\u003e\u003c\/path\u003e\u003cpolyline points=\"22 4 12 14.01 9 11.01\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e3.5 Ton · 15.2 SEER2\u003c\/span\u003e\n\u003cspan class=\"gm-badge gm-badge--blue\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"17 1 21 5 17 9\"\u003e\u003c\/polyline\u003e\u003cpath d=\"M3 11V9a4 4 0 0 1 4-4h14\"\u003e\u003c\/path\u003e\u003cpolyline points=\"7 23 3 19 7 15\"\u003e\u003c\/polyline\u003e\u003cpath d=\"M21 13v2a4 4 0 0 1-4 4H3\"\u003e\u003c\/path\u003e\u003c\/svg\u003eHeats + Cools\u003c\/span\u003e\n\u003cspan class=\"gm-badge gm-badge--warn\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 6v6l4 2\"\u003e\u003c\/path\u003e\u003c\/svg\u003eR-32 Refrigerant\u003c\/span\u003e\n\u003cspan class=\"gm-badge\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M12 2.69l5.66 5.66a8 8 0 11-11.31 0z\"\u003e\u003c\/path\u003e\u003c\/svg\u003eSingle-Stage Scroll\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-callout\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cline x1=\"12\" y1=\"16\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"12\" y1=\"8\" x2=\"12.01\" y2=\"8\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eA complete, factory-matched heat pump system — cools in summer, heats in winter.\u003c\/strong\u003e This kit pairs an R-32 outdoor heat pump with a Multi-Position ECM air handler. The heat pump's reversing valve flips the refrigerant cycle seasonally, so one outdoor unit handles year-round comfort with a single refrigerant system.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eSystem Performance at a Glance\u003c\/h2\u003e\n\u003cdiv class=\"gm-perf-cards\"\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e3.5\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eTon\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eNominal Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e42,000\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eBTU\/h\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eCooling\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e42,000\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eBTU\/h\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eHeating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e15.2\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eSEER2\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eCooling Efficiency\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e72\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003edB\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eOutdoor Sound\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eWhat's Included in This System\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eTwo matched components, designed and certified to work together\u003c\/p\u003e\n\u003cdiv class=\"gm-components\"\u003e\n\n\u003cdiv class=\"gm-component\"\u003e\n\u003cdiv class=\"gm-component-num\"\u003e1\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;gap:10px;margin-bottom:12px;\"\u003e\n\u003csvg width=\"28\" height=\"28\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#cc0000\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"5\"\u003e\u003c\/circle\u003e\u003cline x1=\"12\" y1=\"9\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"12\" y1=\"12\" x2=\"14.5\" y2=\"13.5\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003cdiv class=\"gm-component-label\"\u003eOutdoor Heat Pump\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-component-sku\"\u003eGLZS4BA4210A\u003c\/div\u003e\n\u003cdiv class=\"gm-component-desc\"\u003eR-32 heat pump — the heart of the system. Houses the compressor, reversing valve, and outdoor coil; provides both cooling and heating by reversing the refrigerant cycle.\u003c\/div\u003e\n\u003cul class=\"gm-component-specs\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTonnage\u003c\/strong\u003e\u003cspan\u003e3.5 Ton\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 Rating\u003c\/strong\u003e\u003cspan\u003e15.2\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating Capacity\u003c\/strong\u003e\u003cspan\u003e42,000 BTU\/h\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor\u003c\/strong\u003e\u003cspan\u003eSingle-Stage Scroll\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Level\u003c\/strong\u003e\u003cspan\u003e72 dB\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant\u003c\/strong\u003e\u003cspan\u003eR-32\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-component\"\u003e\n\u003cdiv class=\"gm-component-num\"\u003e2\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;gap:10px;margin-bottom:12px;\"\u003e\n\u003csvg width=\"28\" height=\"28\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#cc0000\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003crect x=\"4\" y=\"3\" width=\"16\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"4\" y1=\"9\" x2=\"20\" y2=\"9\"\u003e\u003c\/line\u003e\u003cpolyline points=\"17 11 12 6 7 11\"\u003e\u003c\/polyline\u003e\u003cpolyline points=\"17 18 12 13 7 18\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003cdiv class=\"gm-component-label\"\u003eIndoor Air Handler\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-component-sku\"\u003eAMST42CU13\u003c\/div\u003e\n\u003cdiv class=\"gm-component-desc\"\u003eMulti-Position ECM air handler with built-in R-32 evaporator coil. Installs in any of four orientations; accommodates field-installable electric heat kits for cold-weather backup heat.\u003c\/div\u003e\n\u003cul class=\"gm-component-specs\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet\u003c\/strong\u003e\u003cspan\u003eC · 21\"\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003cspan\u003eMulti-Position\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlower Motor\u003c\/strong\u003e\u003cspan\u003e3\/4 HP Multi-Speed ECM\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaporator Coil\u003c\/strong\u003e\u003cspan\u003eBuilt-in, R-32\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Heat Kit\u003c\/strong\u003e\u003cspan\u003eField-installable (recommended for cold climates)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eKey Features\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eWhat sets this system apart\u003c\/p\u003e\n\u003cdiv class=\"gm-features\"\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"3\" y1=\"9\" x2=\"21\" y2=\"9\"\u003e\u003c\/line\u003e\u003cline x1=\"9\" y1=\"21\" x2=\"9\" y2=\"9\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eComplete Factory-Matched System\u003c\/h4\u003e\n\u003cp\u003eBoth components — outdoor heat pump and indoor air handler — are engineered and AHRI-certified to work together. You get the published 14.3 SEER2 efficiency rating, correct refrigerant line sizing, compatible controls, and a single-source solution covered by Goodman's warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"17 1 21 5 17 9\"\u003e\u003c\/polyline\u003e\u003cpath d=\"M3 11V9a4 4 0 0 1 4-4h14\"\u003e\u003c\/path\u003e\u003cpolyline points=\"7 23 3 19 7 15\"\u003e\u003c\/polyline\u003e\u003cpath d=\"M21 13v2a4 4 0 0 1-4 4H3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eHeats AND Cools\u003c\/h4\u003e\n\u003cp\u003eA reversing valve flips the refrigerant cycle between heating and cooling modes — the same outdoor unit that cools your home in summer also heats it in winter. 42,000 BTU\/h of cooling capacity; 42,000 BTU\/h of heating capacity at standard rating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 6v6l4 2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eR-32 Refrigerant\u003c\/h4\u003e\n\u003cp\u003eBuilt around R-32 — the next-generation residential refrigerant with lower environmental impact than R-410A. R-32 systems require up to 30% less refrigerant charge and deliver improved thermodynamic performance, meeting current EPA and AIM Act requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\"\u003e\u003cpath d=\"M12 2.69l5.66 5.66a8 8 0 11-11.31 0z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eSingle-Stage Scroll Compressor\u003c\/h4\u003e\n\u003cp\u003eThe outdoor heat pump uses a proven single-stage scroll compressor — reliable, consistent performance in both heating and cooling modes with smooth operation and long service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"3\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 2v4M12 18v4M4.93 4.93l2.83 2.83M16.24 16.24l2.83 2.83M2 12h4M18 12h4M4.93 19.07l2.83-2.83M16.24 7.76l2.83-2.83\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eMulti-Speed ECM Blower\u003c\/h4\u003e\n\u003cp\u003eThe air handler uses a Multi-Speed ECM (electronically commutated motor) that adjusts airflow precisely to demand. ECM blowers use significantly less electricity than older PSC motors, particularly during long low-speed operation, and run more quietly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"13 2 3 14 12 14 11 22 21 10 12 10 13 2\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eBackup Heat Kit Ready\u003c\/h4\u003e\n\u003cp\u003eThe air handler accommodates field-installable electric heat kits (sold separately). In cold climates, a backup heat kit provides supplemental heat when outdoor temperatures drop below the heat pump's efficient operating range — important for homes in heating-dominant regions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-features-detail\" style=\"margin-top:32px;\"\u003e\n\u003cp\u003eThis complete Goodman heat pump split system pairs a 3.5 ton energy-efficient GLZS4B R-32 condenser with an AMST multi-position 9-speed ECM air handler and a matched electric heat kit, delivering 42,000 BTU of cooling and heating capacity at 15.2 SEER2 as an AHRI-matched system. SmartShift® technology manages the defrost cycle for quieter winter operation. AHRI Certified and ETL Listed; UL 60335-2-40 compliant.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-charged with R-32 refrigerant\u003c\/strong\u003e — factory-charged condenser for 15 feet of line set to reduce installation time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI-matched system rating\u003c\/strong\u003e — this condenser\/air handler\/heat kit combination is rated as a system at 15.2 SEER2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartShift® defrost technology\u003c\/strong\u003e — manages the defrost cycle quietly, reducing the abrupt sounds typical of older heat pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor crankcase heater\u003c\/strong\u003e — factory-installed for reliable cold-temperature starts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuction-line accumulator\u003c\/strong\u003e — factory-installed to protect the compressor from liquid refrigerant slugging during defrost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA2L refrigerant compliance\u003c\/strong\u003e — air handler designed and tested to UL 60335-2-40 requirements for R-32 refrigerant safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect-drive 9-speed ECM blower motor\u003c\/strong\u003e — variable airflow speeds for matched comfort and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-position air handler\u003c\/strong\u003e — upflow, downflow, or horizontal — adapts to closets, attics, or basements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal factory-installed TXV\u003c\/strong\u003e — thermal expansion valve included on the air handler for cooling and heat pump applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric heat kit included\u003c\/strong\u003e — matched HKTSN heat kit for supplemental heating in cold weather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eWhy R-32 Refrigerant?\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eThis system uses R-32 — here's how it compares to the outgoing R-410A standard\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eR-32 (This System)\u003c\/th\u003e\n\u003cth\u003eR-410A (Old Standard)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy Efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUp to 10% higher\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBaseline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant Charge Required\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUp to 30% less\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermodynamic Performance\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSuperior heat transfer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulatory Status\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFuture-ready\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAIM Act phase-down\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eHow Quiet Is the Outdoor Unit?\u003c\/h2\u003e\n\u003cp class=\"gm-section-intro\"\u003eHow the GLZS4BA4210A heat pump compares to everyday sounds.\u003c\/p\u003e\n\u003cdiv class=\"gm-sound\"\u003e\n\u003cdiv class=\"gm-sound-bar gm-sound-bar--quiet\"\u003e\n\u003cdiv class=\"gm-sound-db\"\u003e60 dB\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-label\"\u003eNormal Conversation\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-desc\"\u003eQuiet indoor setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-bar gm-sound-bar--this\"\u003e\n\u003cdiv class=\"gm-sound-marker\"\u003eThis System\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-db\"\u003e72 dB\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-label\"\u003eOutdoor Heat Pump\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-desc\"\u003eOperating sound level\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-bar gm-sound-bar--loud\"\u003e\n\u003cdiv class=\"gm-sound-db\"\u003e85 dB\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-label\"\u003eLawn Mower\u003c\/div\u003e\n\u003cdiv class=\"gm-sound-desc\"\u003eFrom 50 ft · Clearly loud\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eComplete System Specifications\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eFull details for GLZS4BA4210A\/ AMST42CU1300A\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eSystem Overview\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBundle SKU\u003c\/td\u003e\n\u003ctd\u003eGLZS4BA4210A\/ AMST42CU1300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd\u003e3.5 Ton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Capacity\u003c\/td\u003e\n\u003ctd\u003e42,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Capacity\u003c\/td\u003e\n\u003ctd\u003e42,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2 Rating\u003c\/td\u003e\n\u003ctd\u003e15.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Type\u003c\/td\u003e\n\u003ctd\u003eHeat Pump (cools + heats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR-32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Refrigerant Charge\u003c\/td\u003e\n\u003ctd\u003e139 oz (outdoor unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eOutdoor Heat Pump — GLZS4BA4210A\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor\u003c\/td\u003e\n\u003ctd\u003eSingle-Stage Scroll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Level\u003c\/td\u003e\n\u003ctd\u003e72 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant Charge\u003c\/td\u003e\n\u003ctd\u003e139 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eIndoor Air Handler — AMST42CU13\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eMulti-Position (Upflow \/ Downflow \/ Horizontal L \/ Horizontal R)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabinet\u003c\/td\u003e\n\u003ctd\u003eC (21\" wide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlower Motor\u003c\/td\u003e\n\u003ctd\u003e3\/4 HP Multi-Speed ECM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvaporator Coil\u003c\/td\u003e\n\u003ctd\u003eBuilt-in, R-32, factory-installed TXV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectric Heat Kit\u003c\/td\u003e\n\u003ctd\u003eField-installable (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eElectrical \u0026amp; Line Set\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor Unit Voltage\u003c\/td\u003e\n\u003ctd\u003e208-230V Single-Phase \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor Unit MCA\u003c\/td\u003e\n\u003ctd\u003e5.9 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor Unit MOCP\u003c\/td\u003e\n\u003ctd\u003e15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiquid Line Size\u003c\/td\u003e\n\u003ctd\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuction Line Size\u003c\/td\u003e\n\u003ctd\u003e1 1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eWarranty Coverage\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eProtection across every component when properly registered\u003c\/p\u003e\n\u003cdiv class=\"gm-warranty-grid\"\u003e\n\u003cdiv class=\"gm-warranty-item\"\u003e\n\u003cdiv class=\"gm-warranty-years\"\u003e10 Year\u003c\/div\u003e\n\u003cdiv class=\"gm-warranty-label\"\u003eParts Limited Warranty\u003cbr\u003e(All Components)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-warranty-item\"\u003e\n\u003cdiv class=\"gm-warranty-years\"\u003e10 Year\u003c\/div\u003e\n\u003cdiv class=\"gm-warranty-label\"\u003eCompressor Limited Warranty\u003cbr\u003e(Outdoor Heat Pump)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top:16px;font-size:.9em;color:#6b7280;\"\u003eWarranty terms require online product registration within 60 days of installation. Each component must be registered. See official Goodman warranty documents for complete terms and conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section gm-spec-sheets\"\u003e\n\u003cstyle\u003e\n.gm-spec-sheets-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin-top:16px}\n.gm-spec-link{display:flex;align-items:center;gap:12px;padding:14px 18px;background:#f8fafc;border:1px solid #d1dce6;border-radius:10px;text-decoration:none;color:#1a1a2e;transition:background 0.15s,border-color 0.15s}\n.gm-spec-link:hover{background:#eef2f7;border-color:#94a3b8;text-decoration:none}\n.gm-spec-link svg{flex-shrink:0;color:#cc0000}\n.gm-spec-link strong{font-size:14px;font-weight:700;color:#1a1a2e}\n\u003c\/style\u003e\n\u003ch2 class=\"gm-section-title\"\u003eDocumentation\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eManufacturer spec sheets for this system\u003c\/p\u003e\n\u003cdiv class=\"gm-spec-sheets-grid\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/6279\/8913\/files\/GLZS4B-Specs.pdf?v=1777040495\" target=\"_blank\" rel=\"noopener\" class=\"gm-spec-link\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003cline x1=\"12\" y1=\"18\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cpolyline points=\"9 15 12 12 15 15\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003cspan\u003e\u003cstrong\u003eHeat Pump Spec Sheet\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:12px;opacity:0.85\"\u003ePDF — Tap to download\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/6279\/8913\/files\/AMST.pdf?v=1777321861\" target=\"_blank\" rel=\"noopener\" class=\"gm-spec-link\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003cline x1=\"12\" y1=\"18\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cpolyline points=\"9 15 12 12 15 15\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003cspan\u003e\u003cstrong\u003eAir Handler Spec Sheet\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:12px;opacity:0.85\"\u003ePDF — Tap to download\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section gm-faq\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat comes in this kit?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eTwo components shipped together: (1) the outdoor heat pump \u003cstrong\u003eGLZS4BA4210A\u003c\/strong\u003e and (2) the indoor air handler \u003cstrong\u003eAMST42CU13\u003c\/strong\u003e. Line set (refrigerant tubing), thermostat, ductwork, condensate drain, and electrical wiring are NOT included and are supplied by your HVAC contractor. Electric heat kits for cold-weather backup are also sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eHow does a heat pump heat my home?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eA heat pump uses refrigerant to \u003cem\u003emove\u003c\/em\u003e heat between outdoors and indoors. In summer it absorbs heat from inside and releases it outside (cooling). In winter, a reversing valve flips the cycle: the outdoor unit extracts heat from the outdoor air (even when it's cold outside) and moves it inside. When outdoor temperatures drop below the heat pump's efficient operating range, supplemental electric heat kits installed in the air handler provide additional heat.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eHeat pump vs. gas furnace — which should I choose?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eChoose a \u003cem\u003eheat pump\u003c\/em\u003e if you're in an all-electric home, a mild-to-moderate climate, or want the efficiency benefits of electric heating. Choose a \u003cem\u003egas furnace\u003c\/em\u003e (with a separate AC condenser) if you have natural gas service and are in a cold climate where gas heat is typically more cost-effective during the coldest months. Heat pumps have improved dramatically in cold weather performance over the past decade, but local utility rates and climate still matter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eDo I need a backup heat kit?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eIn mild climates, a heat pump alone is often sufficient. In colder climates, a field-installable electric heat kit is recommended — it runs when outdoor temperatures drop below the heat pump's efficient operating range and kicks in during defrost cycles. Your HVAC contractor can size the kit based on your climate zone and heating load. The air handler in this kit is designed to accommodate these heat kits.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhy buy as a matched kit vs. separate components?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eMatched systems are AHRI-certified to deliver their published SEER2 rating — mixing components from different manufacturers or model families often results in lower real-world efficiency and can complicate warranty claims. The factory match also ensures refrigerant line sizing, TXV calibration, and airflow are correct from day one.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat size home does this system serve?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eA 3.5-ton system is generally appropriate for homes in the 1,800–2,200 sq. ft. range for cooling. Heating load is more climate-dependent — a professional Manual J load calculation by your HVAC contractor is the most accurate way to confirm the right system size for your specific home, especially for heat pump sizing in regions with significant heating demand.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat is R-32 refrigerant?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eR-32 is the next-generation residential refrigerant replacing R-410A. It has lower environmental impact, requires up to 30% less charge per system, and offers improved energy efficiency. R-32 is being adopted industry-wide to meet EPA and AIM Act requirements phasing down legacy refrigerants. R-32 systems are not backward-compatible with R-410A equipment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eCan the air handler install in any orientation?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eYes — the AMST42CU13 is a Multi-Position air handler, supporting all four installation orientations: upflow, downflow, horizontal-left, and horizontal-right. Your HVAC contractor will select the orientation based on your home's ductwork layout.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eHow do I register the warranty?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eEach component must be registered separately at Goodman's warranty registration page within 60 days of installation. You'll need the model number and serial number (from each data plate), installation date, and installing contractor information for both the heat pump and air handler. Without timely registration, warranty terms revert to a shorter base period.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"text-align:center;color:#6b7280;margin:48px 0 0;font-size:14px;\"\u003eDesigned, engineered, and assembled in the U.S.A. by Goodman Manufacturing — a member of the Daikin group.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":43725754564673,"sku":"GLZS4BA4210A\/ AMST42CU1300A","price":4571.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/6279\/8913\/files\/Goodman-Split-System_e3ec18d8-32d2-4f1a-a072-62bbf39bee02.jpg?v=1775050691","url":"https:\/\/aceairdirect.com\/products\/goodman-3-5-ton-14-3-seer2-heat-pump-split-system-r32","provider":"Ace Air Direct","version":"1.0","type":"link"}