{"product_id":"suburban-520839-fan-control-wiring-harness-nt-series-furnaces-for-use-with-521099-board","title":"Suburban 520839 Fan Control Wiring Harness – NT Series Furnaces (For Use with 521099 Board)","description":"\u003ch2 data-section-id=\"53drpp\" data-start=\"226\" data-end=\"247\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"248\" data-end=\"479\"\u003eThe \u003cstrong data-start=\"252\" data-end=\"286\"\u003eSuburban 520839 Wiring Harness\u003c\/strong\u003e is designed specifically for \u003cstrong data-start=\"316\" data-end=\"350\"\u003eSuburban NT series RV furnaces\u003c\/strong\u003e, providing the necessary connection to enable fan control functionality when upgrading to the \u003cstrong data-start=\"445\" data-end=\"478\"\u003e521099 ignition control board\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"481\" data-end=\"666\"\u003eThis harness allows your furnace to properly utilize the added fan control feature built into the 521099 board, ensuring smooth operation, improved efficiency, and reliable performance.\u003c\/p\u003e\n\u003cp data-start=\"668\" data-end=\"783\"\u003eIf your NT series furnace did not originally include fan control, this harness is required to complete the upgrade.\u003c\/p\u003e\n\u003chr data-start=\"785\" data-end=\"788\"\u003e\n\u003ch2 data-section-id=\"14at72t\" data-start=\"790\" data-end=\"807\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"808\" data-end=\"1215\"\u003e\n\u003cli data-section-id=\"hbhy50\" data-start=\"808\" data-end=\"856\"\u003eDesigned for Suburban \u003cstrong data-start=\"832\" data-end=\"854\"\u003eNT series furnaces\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hxa0p8\" data-start=\"857\" data-end=\"938\"\u003eEnables \u003cstrong data-start=\"867\" data-end=\"896\"\u003efan control functionality\u003c\/strong\u003e when used with the 521099 control board\u003c\/li\u003e\n\u003cli data-section-id=\"o4ffwb\" data-start=\"939\" data-end=\"993\"\u003eRequired for upgrading systems without fan control\u003c\/li\u003e\n\u003cli data-section-id=\"1c4ihr9\" data-start=\"994\" data-end=\"1045\"\u003eProvides secure and reliable wiring connections\u003c\/li\u003e\n\u003cli data-section-id=\"1reavob\" data-start=\"1046\" data-end=\"1102\"\u003eHelps ensure proper furnace operation and efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"83yh3w\" data-start=\"1103\" data-end=\"1160\"\u003eReduces risk of electrical issues and improper wiring\u003c\/li\u003e\n\u003cli data-section-id=\"qykgd7\" data-start=\"1161\" data-end=\"1215\"\u003eDirect-fit design for straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1217\" data-end=\"1220\"\u003e\n\u003ch2 data-section-id=\"1qhk4i3\" data-start=\"1222\" data-end=\"1241\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"1242\" data-end=\"1422\"\u003e\n\u003cli data-section-id=\"1c01icj\" data-start=\"1242\" data-end=\"1265\"\u003ePart Number: 520839\u003c\/li\u003e\n\u003cli data-section-id=\"1snwcer\" data-start=\"1266\" data-end=\"1310\"\u003eProduct Type: Fan control wiring harness\u003c\/li\u003e\n\u003cli data-section-id=\"9bvu6w\" data-start=\"1311\" data-end=\"1358\"\u003eApplication: Suburban NT series RV furnaces\u003c\/li\u003e\n\u003cli data-section-id=\"jvktfw\" data-start=\"1359\" data-end=\"1422\"\u003eFunction: Enables fan control integration with 521099 board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1424\" data-end=\"1427\"\u003e\n\u003ch2 data-section-id=\"yzynuf\" data-start=\"1429\" data-end=\"1459\"\u003eCompatible Furnace Models\u003c\/h2\u003e\n\u003cul data-start=\"1460\" data-end=\"1505\"\u003e\n\u003cli data-section-id=\"yzt1a2\" data-start=\"1460\" data-end=\"1471\"\u003eNT-24SP\u003c\/li\u003e\n\u003cli data-section-id=\"zon7fj\" data-start=\"1472\" data-end=\"1483\"\u003eNT-30SP\u003c\/li\u003e\n\u003cli data-section-id=\"zltj6j\" data-start=\"1484\" data-end=\"1495\"\u003eNT-34SP\u003c\/li\u003e\n\u003cli data-section-id=\"17gyz6j\" data-start=\"1496\" data-end=\"1505\"\u003eNT-40\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1507\" data-end=\"1510\"\u003e\n\u003ch2 data-section-id=\"1rkovwv\" data-start=\"1512\" data-end=\"1544\"\u003eImportant Installation Note\u003c\/h2\u003e\n\u003cp data-start=\"1545\" data-end=\"1673\"\u003eThis wiring harness connects directly to the \u003cstrong data-start=\"1590\" data-end=\"1632\"\u003eSuburban 521099 ignition control board\u003c\/strong\u003e to activate the \u003cstrong data-start=\"1649\" data-end=\"1672\"\u003efan control feature\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul data-start=\"1675\" data-end=\"1831\"\u003e\n\u003cli data-section-id=\"16tr0ap\" data-start=\"1675\" data-end=\"1724\"\u003eThe \u003cstrong data-start=\"1681\" data-end=\"1722\"\u003emodule board (521099) is NOT included\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6nlfgf\" data-start=\"1725\" data-end=\"1831\"\u003eThis harness is required when upgrading NT series furnaces that do not already have fan control wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1833\" data-end=\"1836\"\u003e\n\u003ch2 data-section-id=\"tr8gm2\" data-start=\"1838\" data-end=\"1873\"\u003eWhen Do You Need This Harness?\u003c\/h2\u003e\n\u003cp data-start=\"1874\" data-end=\"1919\"\u003eYou will need the 520839 wiring harness if:\u003c\/p\u003e\n\u003cul data-start=\"1920\" data-end=\"2155\"\u003e\n\u003cli data-section-id=\"r5h0cx\" data-start=\"1920\" data-end=\"1973\"\u003eYou are upgrading to the \u003cstrong data-start=\"1947\" data-end=\"1971\"\u003e521099 control board\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8nhn8g\" data-start=\"1974\" data-end=\"2037\"\u003eYour NT series furnace does \u003cstrong data-start=\"2004\" data-end=\"2035\"\u003enot have fan control wiring\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18cvz0u\" data-start=\"2038\" data-end=\"2085\"\u003eYou are replacing damaged or missing wiring\u003c\/li\u003e\n\u003cli data-section-id=\"1368rml\" data-start=\"2086\" data-end=\"2155\"\u003eYour furnace fan control is not functioning after a board upgrade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2157\" data-end=\"2160\"\u003e\n\u003ch2 data-section-id=\"1hdrzr1\" data-start=\"2162\" data-end=\"2191\"\u003eWhy This Harness Matters\u003c\/h2\u003e\n\u003cul data-start=\"2192\" data-end=\"2409\"\u003e\n\u003cli data-section-id=\"1ezxal1\" data-start=\"2192\" data-end=\"2251\"\u003eEnsures proper communication between furnace components\u003c\/li\u003e\n\u003cli data-section-id=\"vzrk9\" data-start=\"2252\" data-end=\"2308\"\u003eAllows full functionality of upgraded control boards\u003c\/li\u003e\n\u003cli data-section-id=\"dopbau\" data-start=\"2309\" data-end=\"2363\"\u003ePrevents wiring mismatches and installation issues\u003c\/li\u003e\n\u003cli data-section-id=\"16xoo1l\" data-start=\"2364\" data-end=\"2409\"\u003eHelps extend furnace life and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2411\" data-end=\"2414\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"2416\" data-end=\"2424\"\u003eFAQ\u003c\/h2\u003e\n\u003cp data-start=\"2426\" data-end=\"2576\"\u003e\u003cstrong data-start=\"2426\" data-end=\"2475\"\u003eDo I need this with the 521099 control board?\u003c\/strong\u003e\u003cbr data-start=\"2475\" data-end=\"2478\"\u003eYes, if your NT series furnace does not already have fan control wiring, this harness is required.\u003c\/p\u003e\n\u003cp data-start=\"2578\" data-end=\"2666\"\u003e\u003cstrong data-start=\"2578\" data-end=\"2612\"\u003eIs the control board included?\u003c\/strong\u003e\u003cbr data-start=\"2612\" data-end=\"2615\"\u003eNo, the \u003cstrong data-start=\"2623\" data-end=\"2665\"\u003e521099 module board is sold separately\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2668\" data-end=\"2782\"\u003e\u003cstrong data-start=\"2668\" data-end=\"2705\"\u003eWill this fit SF series furnaces?\u003c\/strong\u003e\u003cbr data-start=\"2705\" data-end=\"2708\"\u003eNo, this harness is specifically designed for \u003cstrong data-start=\"2754\" data-end=\"2781\"\u003eNT series furnaces only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2784\" data-end=\"2890\"\u003e\u003cstrong data-start=\"2784\" data-end=\"2814\"\u003eIs installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"2814\" data-end=\"2817\"\u003eNo, it is a direct-fit harness designed for straightforward installation.\u003c\/p\u003e\n\u003cp data-start=\"2892\" data-end=\"3049\"\u003e\u003cstrong data-start=\"2892\" data-end=\"2954\"\u003eWhat happens if I don’t use this harness with the upgrade?\u003c\/strong\u003e\u003cbr data-start=\"2954\" data-end=\"2957\"\u003eThe fan control feature will not function properly, and furnace performance may be affected.\u003c\/p\u003e","brand":"RV Furnace Guys","offers":[{"title":"Default Title","offer_id":47949567099121,"sku":null,"price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4941\/0289\/files\/520839.jpg?v=1774300603","url":"https:\/\/rvfurnaceguys.com\/products\/suburban-520839-fan-control-wiring-harness-nt-series-furnaces-for-use-with-521099-board","provider":"RV Furnace Guys","version":"1.0","type":"link"}