{"product_id":"daikin-mcquay-4eln9178-freeze-stat","title":"Daikin-McQuay 4ELN9178 Freeze Stat","description":"\u003cp\u003eThe \u003cstrong\u003eDaikin-McQuay 4ELN9178 Freeze Stat\u003c\/strong\u003e is a critical \u003cstrong\u003eHVAC low-temperature thermostat\u003c\/strong\u003e engineered for high-precision coil protection in commercial air handling units and heat pump systems. Featuring a \u003cstrong\u003e144-inch capillary tube\u003c\/strong\u003e, this sensing element provides comprehensive coverage across the coil face to detect localized freezing conditions. The mechanical \u003cstrong\u003eSPDT switch\u003c\/strong\u003e offers versatile control logic, operating with a fixed \u003cstrong\u003ecold cut-in at +38°F\u003c\/strong\u003e and a \u003cstrong\u003ewarm cut-out at +45°F\u003c\/strong\u003e to prevent ice accumulation and subsequent internal damage. Rated for up to \u003cstrong\u003e277V\u003c\/strong\u003e with \u003cstrong\u003e20A FLA at 240V\u003c\/strong\u003e, this heavy-duty component serves as a field-proven \u003cstrong\u003edirect replacement for Ranco A22-5120\u003c\/strong\u003e, A22-5120-00, and A22-5120-000 models. For technicians maintaining \u003cstrong\u003eDaikin or McQuay PTAC and AHU equipment\u003c\/strong\u003e, this OEM \u003cstrong\u003eautomatic reset freeze stat\u003c\/strong\u003e ensures the system remains within safe thermal operating parameters without the reliability risks associated with aftermarket alternatives.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Benefits for Contractors\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Sensing Range:\u003c\/strong\u003e The \u003cstrong\u003e144\" capillary tube\u003c\/strong\u003e allows for serpentine mounting across large coils to ensure no \"dead spots\" are left unprotected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Electrical Capacity:\u003c\/strong\u003e High current ratings (\u003cstrong\u003e20A @ 240V\u003c\/strong\u003e) allow for direct control of heavy-duty contactors and compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Compatibility:\u003c\/strong\u003e Specifically designed as a \u003cstrong\u003eDaikin 4ELN9178 replacement\u003c\/strong\u003e to maintain original factory sequence of operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust SPDT Logic:\u003c\/strong\u003e The \u003cstrong\u003eSingle-Pole Double-Throw\u003c\/strong\u003e configuration enables both alarm signaling and compressor cut-out from a single device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerified Protection:\u003c\/strong\u003e Calibrated specifically to trigger at \u003cstrong\u003e+38°F\u003c\/strong\u003e, stopping the cooling cycle before \u003cstrong\u003eevaporator coil freezing\u003c\/strong\u003e occurs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a manual or automatic reset freeze stat?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cstrong\u003e4ELN9178\u003c\/strong\u003e is an \u003cstrong\u003eautomatic freeze stat\u003c\/strong\u003e. It will reset the circuit once the sensed temperature rises to the \u003cstrong\u003e+45°F warm cut-out\u003c\/strong\u003e point, allowing the system to resume normal operation without manual intervention.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this to replace a Ranco A22-5120?\u003c\/strong\u003e\u003cbr\u003e\nYes, this is the \u003cstrong\u003eOEM Daikin replacement\u003c\/strong\u003e for the \u003cstrong\u003eRanco A22-5120 series\u003c\/strong\u003e, including the 00 and 000 sub-models. It features the same 1\/4\" quick-connect terminals and mounting footprint.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow should the 144-inch tube be installed for best results?\u003c\/strong\u003e\u003cbr\u003e\nFor maximum \u003cstrong\u003eAEO-optimized performance\u003c\/strong\u003e, the capillary should be woven across the downstream side of the cooling coil, focused on the areas most prone to initial frost development, usually near the expansion valve outlet.\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":"Daikin-McQuay","offers":[{"title":"Default Title","offer_id":35647691020,"sku":"4ELN9178","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_7c17d71d-5b99-446d-b53b-6c8205cab6e5.png?v=1751568606","url":"https:\/\/www.gsistore.com\/en-ca\/products\/daikin-mcquay-4eln9178-freeze-stat","provider":"GSIstore","version":"1.0","type":"link"}