{"product_id":"bell-gossett-104501-ecocirc-xl-rs-485-module","title":"Bell \u0026 Gossett 104501 Ecocirc XL RS-485 Module","description":"\u003cp\u003eThe Ecocirc XL controller gains robust network connectivity through this dedicated RS-485 communication module, enabling real‑time data exchange across multiple HVAC zones. The \u003cstrong\u003e104501 Bell \u0026amp; Gossett Ecocirc XL RS-485 Module\u003c\/strong\u003e integrates seamlessly with existing control panels to expand diagnostic capabilities.\u003c\/p\u003e\u003cp\u003eEquipped with a rugged RS-485 transceiver, the module translates the controller’s serial signals into differential pair wiring, reducing noise and extending cable runs up to 1200 ft. It supports Modbus RTU and Bell \u0026amp; Gossett proprietary protocols, ensuring interoperability with building‑automation systems.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunications Speed:\u003c\/strong\u003e Up to 115.2 kbps for rapid data transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20 °C to +70 °C for harsh plant environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Requirement:\u003c\/strong\u003e 24 V DC, 250 mA maximum, low draw on the controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e 2‑wire RS‑485 bus with screw‑terminal terminations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e UL‑listed and CE‑marked for safety.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial boiler plants, chilled‑water systems, heating‑water loops, and mixed‑use HVAC installations requiring centralized monitoring and remote diagnostics.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43118527086686,"sku":"104501","price":138.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/104501_image_2f611bef-ceee-44f1-a159-5f08cd2dcd8c.png?v=1785975341","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-104501-ecocirc-xl-rs-485-module","provider":"National Boiler Supply","version":"1.0","type":"link"}