{"product_id":"trane-25-ton-commercial-gas-electric-packaged-unit-foundation-series-low-heat-r454b-460v-3-phase","title":"Trane 25 Ton 266,000 BTU Commercial Gas\/Electric Packaged Unit | Low Heat | 13.0 IEER | R-454B | 460V 3-Phase | Foundation Series | Single Stage","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eTrane Foundation Series 25 Ton Commercial Gas\/Electric Packaged Unit — 460V Low Heat for Maximum Capacity Warm Climate Large Commercial and Light Industrial Buildings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe Trane Foundation Series 25-ton unit in low heat configuration on 460V 3-phase power is the flagship of the entire Foundation Series 460V lineup — maximum tonnage, maximum BTU output, low heat configuration for warm climate applications, and factory-rated 460V compatibility in a single factory-assembled rooftop package. At 266,000 BTU on 460V 3-phase power with low heat gas configuration, this commercial rooftop packaged unit is the specification for the largest warm climate commercial and light industrial buildings running high-voltage electrical infrastructure — major retail complexes, flagship distribution and fulfillment centers, large manufacturing facilities, substantial institutional campuses, and major multi-tenant commercial developments in warm to moderate climate zones where the cooling load has pushed to the absolute ceiling of what a single Foundation Series rooftop unit can deliver, the climate keeps heating demands at their most modest, and the building's 460V electrical infrastructure makes this unit the only correct specification across every dimension of the selection matrix simultaneously.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAt 266,000 BTU on 460V power, the low heat configuration is the specification that keeps the gas heating system correctly matched to actual warm climate demand at the highest tonnage in the lineup. In large warm climate commercial and light industrial buildings running 25-ton cooling equipment through extended warm climate seasons, an oversized heat configuration at this scale carries the most significant fuel consumption overhead of any unit in the Foundation Series — low heat at maximum tonnage in a warm climate application is not a compromise on heating capability but the correct engineering decision for the actual operating conditions the building will face across its full annual cycle. The 460V electrical configuration at 25-ton capacity delivers the maximum amperage advantage in the entire Foundation Series low heat lineup — at 266,000 BTU load on 460V power, the amperage reduction versus a comparable 208\/230V unit is the largest in the series, translating into the greatest wire sizing reductions, the most significant conduit savings, and the highest switchgear cost reduction across large commercial and light industrial electrical scopes where those savings are most financially consequential on major project budgets.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eAt 13.0 IEER, this unit holds the same efficiency tier as the 20-ton 460V entry — consistent across the upper Foundation Series tonnage tier and above minimum energy code thresholds in most U.S. jurisdictions at this capacity level. For large warm climate building owners and facility managers running 25-ton 460V equipment through long cooling seasons, 13.0 IEER at 266,000 BTU output on 460V power is where the absolute dollar value of efficiency rating differences is at its highest in the Foundation Series — the combination of maximum tonnage, maximum annual runtime hours in warm climate markets, and sustained full-load operation through extended cooling seasons makes every efficiency point more financially significant at 25 tons than at any lower tonnage tier in the lineup. R-454B refrigerant at 25-ton 460V capacity represents the most consequential refrigerant specification decision in the entire Foundation Series across both voltage configurations — a mid-lifecycle refrigerant retrofit on a 25-ton high-voltage commercial unit running extended warm climate cooling seasons is the most disruptive, most costly, and most operationally impactful service event the Foundation Series addresses, and R-454B specified at installation eliminates that scenario permanently across the complete service life of the highest-capacity, highest-utilization unit in the 460V lineup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eSpecifications at a Glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\"\u003eSpec\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCapacity\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e25 Ton \/ 266,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eHeat Configuration\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eLow Heat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eIEER\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e13.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eRefrigerant\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eR-454B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eVoltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e460V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003ePhase\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003e3-Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eHeating\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eGas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eCooling\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eElectric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eStages\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSingle Stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eSeries\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\"\u003eFoundation Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Trane","offers":[{"title":"Default Title","offer_id":55231152095523,"sku":"GDK300A4SLA1DQY","price":34109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/1171\/5363\/files\/TraneGDK_9e5fd715-ae92-4ad3-860d-1ac9ce180485.png?v=1781331538","url":"https:\/\/www.acunitsforless.com\/products\/trane-25-ton-commercial-gas-electric-packaged-unit-foundation-series-low-heat-r454b-460v-3-phase","provider":"acunitsforless.com","version":"1.0","type":"link"}