{"product_id":"trane-cpt2329-capacitor","title":"Trane CPT2329 Capacitor","description":"\u003cp\u003eThe \u003cstrong\u003eTrane CPT2329 Capacitor\u003c\/strong\u003e is a high-duty, cylinder-style \u003cstrong\u003emotor start capacitor\u003c\/strong\u003e engineered to provide the high-torque boost required for heavy-duty HVAC compressors. Rated at \u003cstrong\u003e229 MFD\u003c\/strong\u003e and \u003cstrong\u003e330V\u003c\/strong\u003e, this \u003cstrong\u003eround capacitor\u003c\/strong\u003e is a direct OEM replacement for the obsolete \u003cstrong\u003eCPT0429\u003c\/strong\u003e and \u003cstrong\u003eCPT02329\u003c\/strong\u003e models. Unlike standard run capacitors, this start-assist component is specifically designed to stay in the circuit for a fraction of a second, delivering the necessary phase shift to overcome high head pressures in Trane and American Standard systems, particularly those utilizing non-bleed TXVs or operating in low-ambient conditions. Its robust construction handles the intense inrush current typical of industrial \u003cstrong\u003eHVAC start capacitors\u003c\/strong\u003e, ensuring the compressor reaches synchronous speed quickly to prevent winding overheat. This part is essential for maintaining the mechanical integrity of the motor in single-phase cooling and heat pump applications.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits for Technicians\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect OEM Compatibility:\u003c\/strong\u003e Serves as the primary \u003cstrong\u003eTrane CPT2329 replacement\u003c\/strong\u003e for legacy \u003cstrong\u003eCPT0429\u003c\/strong\u003e part numbers, ensuring fitment in original mounting brackets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngineered for High Torque:\u003c\/strong\u003e The \u003cstrong\u003e229 +\/- 5MFD\u003c\/strong\u003e rating provides consistent starting torque to help compressors clear mechanical resistance during rapid cycling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Dielectric Strength:\u003c\/strong\u003e Rated for \u003cstrong\u003e330V\u003c\/strong\u003e, offering a reliable safety margin against voltage spikes during the starting phase.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick-Connect Terminals:\u003c\/strong\u003e Features standard spade terminals for fast integration with existing potential relays and wiring harnesses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions \u0026amp; Technical Support\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the CPT2329 to replace an older CPT0429 model?\u003c\/strong\u003e\u003cbr\u003e\nYes, the \u003cstrong\u003eTrane CPT2329\u003c\/strong\u003e is the official direct replacement for the \u003cstrong\u003eCPT0429\u003c\/strong\u003e and and meets or exceeds all original \u003cstrong\u003e330V capacitor\u003c\/strong\u003e specifications for capacitance and voltage tolerance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat are the signs that this start capacitor has failed?\u003c\/strong\u003e\u003cbr\u003e\nCommon indicators include the compressor \"short-cycling,\" a distinct humming sound without the motor turning over, or visible expansion\/leaking of the capacitor casing. Use a multimeter with an MFD setting to verify if the capacitance has dropped below \u003cstrong\u003e229 MFD\u003c\/strong\u003e +\/- 5%.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this capacitor require a blow-off resistor?\u003c\/strong\u003e\u003cbr\u003e\nWhile many \u003cstrong\u003eHVAC motor capacitors\u003c\/strong\u003e in this range include a factory-installed resistor to bleed off stored charge for safety and potential relay protection, always verify the specific wiring requirements of your unit's schematic.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Trane","offers":[{"title":"Default Title","offer_id":35646001548,"sku":"CPT2329","price":104.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Image_86270708-fffd-4c16-aeb9-4538342ef7d9.png?v=1786721818","url":"https:\/\/www.gsistore.com\/en-ca\/products\/trane-cpt2329-capacitor","provider":"GSIstore","version":"1.0","type":"link"}