{"product_id":"coleman-mach-9-series-heat-ready-zone-control-9430a755","title":"Coleman Mach 9-Series Heat-Ready Zone Control Box, 12V DC (9430A755)","description":"\u003cp class=\"nvn-hero\"\u003eThe Coleman Mach 9-Series Heat-Ready Zone Control is the 12-volt DC brain that lets your rooftop air conditioner run electric heat and answer to a wall thermostat. If your 9-Series unit came heat-ready, this is the control box that wakes up that capability. Pair it with a 9330A3341 or 9330A3351 thermostat, add the matching heat strip, and you've got cooling and supplemental heat from one rooftop unit.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eHere's the deal with the Coleman Mach 9-Series. A lot of those rooftop units ship heat-ready, which means the air conditioner is built to run an electric heat strip. But heat-ready doesn't mean heat-installed. To actually turn that capability on, you need this zone control box. It's the 12-volt DC control that ties the rooftop unit, the heat strip, and your wall thermostat together into one system.\u003c\/p\u003e\n\u003cp\u003eThink of it as the traffic cop up in the ceiling assembly. When the thermostat calls for cool, the control box runs the compressor. When it calls for heat, it switches power over to the electric heat strip instead. Without this box in the loop, a heat-ready 9-Series unit just cools. It has no way to manage the heat side. That's why this part shows up so often on install lists and repair jobs, and it's an easy one to overlook.\u003c\/p\u003e\n\u003cp\u003eOne thing to get straight before you order. The heat strips are sold separately. This box is the control, not the heating element. If you've got a 4700 Series unit, you'll want heat strip 47233-4551. For all the other 9-Series units, it's 9233A4551. Buy the strip that matches your AC, because the control box on its own won't put out any heat. We see plenty of folks order the control, get it installed, and then realize the actual heating element is still sitting on the shelf at the parts counter.\u003c\/p\u003e\n\u003cp\u003eOn the thermostat side, this control is built to work with the 9330A3341 or the 9330A3351 wall thermostat. Those are the heads that speak the same language as the 9-Series zone system, so the box knows when to call for cool and when to switch to heat. If you're building the system from scratch, plan on the control box, the matching heat strip, and one of those two thermostats. That's the full package.\u003c\/p\u003e\n\u003cp\u003eThe box itself is compact. It measures 13-7\/8 inches long, 4-3\/8 inches wide, and 2-1\/8 inches tall, so it tucks into the ceiling assembly without much fuss on most 9-Series installs. Worth measuring your headliner clearance first, though. On tighter ceiling cavities, that 2-1\/8-inch height can crowd nearby ducting, and you don't want to find that out with the old unit already down.\u003c\/p\u003e\n\u003cp\u003eIt runs on 12 volts DC, same as the rest of your rig's low-voltage control side. Keep in mind that electric heat pulls real current when the strip fires, so make sure the unit is wired to a circuit that can carry the load. If your coach was pre-wired for heat-ready operation, you're usually in good shape. If you're adding heat to a unit that was only ever set up to cool, take a hard look at the wiring before you commit.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Two groups, mostly. First, techs and owners replacing a failed zone control on a 9-Series unit that already has heat. Match the part number, swap it, done. Second, owners upgrading a heat-ready unit that shipped without the heat side turned on. In that case the control box is step one, the heat strip is step two, and the thermostat ties it together.\u003c\/p\u003e\n\u003cp\u003eAnd what it isn't. It's not a thermostat, so you still need one of the compatible heads. It's not a heat strip, so it won't warm your RV by itself. And it's not for heat-pump units. The 9-Series heat-pump models use a different control setup. This box is specifically for the heat-ready, electric-heat-strip side of the 9-Series line. If you're not sure which camp your unit falls into, check the model number on the AC before you order, and we're happy to help you sort it out.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e12-volt DC zone control box that manages both cooling and electric-heat operation on Mach 9-Series heat-ready air conditioners\u003c\/li\u003e\n  \u003cli\u003eWorks with Coleman 9330A3341 or 9330A3351 wall thermostats for full zone temperature control\u003c\/li\u003e\n  \u003cli\u003eCompact 13-7\/8 in x 4-3\/8 in x 2-1\/8 in footprint fits inside the 9-Series ceiling assembly\u003c\/li\u003e\n  \u003cli\u003eHeat strips sold separately: use 47233-4551 for 4700 Series units or 9233A4551 for all other 9-Series units\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for a failed zone control on heat-equipped 9-Series units, match the part number and swap\u003c\/li\u003e\n  \u003cli\u003eEnables the electric-heat side on heat-ready units that shipped set up for cooling only\u003c\/li\u003e\n  \u003cli\u003eBuilt specifically for heat-ready, electric-heat-strip 9-Series units, not heat-pump models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Coleman reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does the 9430A755 zone control box actually do?\u003c\/summary\u003e\n    \u003cp\u003eIt's the 12-volt DC control that manages both the cooling and the electric-heat side of a Mach 9-Series heat-ready air conditioner. When your thermostat calls for cool, it runs the compressor. When it calls for heat, it switches power to the electric heat strip.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre the heat strips included?\u003c\/summary\u003e\n    \u003cp\u003eNo. Heat strips are sold separately. Use 47233-4551 for 4700 Series units, or 9233A4551 for all other 9-Series units. This part is the control box only, so it won't put out heat on its own.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich thermostat do I need?\u003c\/summary\u003e\n    \u003cp\u003eThis control works with the Coleman 9330A3341 or 9330A3351 wall thermostat. Those heads are built to speak to the 9-Series zone system, so the box knows when to call for cool and when to switch to heat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat voltage does it run on?\u003c\/summary\u003e\n    \u003cp\u003e12 volts DC, the same low-voltage control side as the rest of your rig. Just remember that electric heat pulls real current when the strip fires, so the unit needs to be on wiring that can carry the load.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich air conditioners does this fit?\u003c\/summary\u003e\n    \u003cp\u003eColeman Mach 9-Series heat-ready rooftop air conditioners. Check the model number on your unit before ordering to confirm it's a 9-Series heat-ready model.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the dimensions of the control box?\u003c\/summary\u003e\n    \u003cp\u003eIt measures 13-7\/8 inches long, 4-3\/8 inches wide, and 2-1\/8 inches tall. That's compact enough to tuck into the ceiling assembly on most installs, but it's worth checking your headliner clearance first.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this work on a heat-pump air conditioner?\u003c\/summary\u003e\n    \u003cp\u003eNo. This box is built for the heat-ready, electric-heat-strip side of the 9-Series line. Heat-pump models use a different control setup. If you're not sure which one you have, check the model number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eI only want cooling right now. Do I still need this?\u003c\/summary\u003e\n    \u003cp\u003eIf your 9-Series unit is heat-ready and you plan to run electric heat, you need this control box to manage it. If you're replacing a failed zone control on a unit that already has heat installed, match the part number and swap it in.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eColeman Mach 9-Series Heat-Ready Zone Control Box\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eColeman\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e9430A755\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790203109\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Line\u003c\/th\u003e\n\u003ctd\u003eMach 9-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHeat-Ready Zone Control Box\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12 Volt DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e13-7\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e4-3\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e2-1\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Thermostat\u003c\/th\u003e\n\u003ctd\u003e9330A3341 \/ 9330A3351\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eColeman Mach 9-Series Heat-Ready Air Conditioners\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Heat Strip (4700 Series)\u003c\/th\u003e\n\u003ctd\u003e47233-4551\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Heat Strip (All Other Series)\u003c\/th\u003e\n\u003ctd\u003e9233A4551\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHeat Strips\u003c\/th\u003e\n\u003ctd\u003eSold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does the 9430A755 zone control box actually do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the 12-volt DC control that manages both the cooling and the electric-heat side of a Mach 9-Series heat-ready air conditioner. When your thermostat calls for cool, it runs the compressor. When it calls for heat, it switches power to the electric heat strip.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Are the heat strips included?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. Heat strips are sold separately. Use 47233-4551 for 4700 Series units, or 9233A4551 for all other 9-Series units. This part is the control box only, so it won't put out heat on its own.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which thermostat do I need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"This control works with the Coleman 9330A3341 or 9330A3351 wall thermostat. Those heads are built to speak to the 9-Series zone system, so the box knows when to call for cool and when to switch to heat.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What voltage does it run on?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"12 volts DC, the same low-voltage control side as the rest of your rig. Just remember that electric heat pulls real current when the strip fires, so the unit needs to be on wiring that can carry the load.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which air conditioners does this fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Coleman Mach 9-Series heat-ready rooftop air conditioners. Check the model number on your unit before ordering to confirm it's a 9-Series heat-ready model.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the dimensions of the control box?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It measures 13-7\/8 inches long, 4-3\/8 inches wide, and 2-1\/8 inches tall. That's compact enough to tuck into the ceiling assembly on most installs, but it's worth checking your headliner clearance first.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will this work on a heat-pump air conditioner?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This box is built for the heat-ready, electric-heat-strip side of the 9-Series line. Heat-pump models use a different control setup. If you're not sure which one you have, check the model number before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"I only want cooling right now. Do I still need this?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"If your 9-Series unit is heat-ready and you plan to run electric heat, you need this control box to manage it. If you're replacing a failed zone control on a unit that already has heat installed, match the part number and swap it in.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman","offers":[{"title":"Default Title","offer_id":45056230555741,"sku":"2008244","price":156.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_e6c4e214-3222-4e13-ba98-d631f623b002.jpg?v=1789446097","url":"https:\/\/nvnmarine.com\/products\/coleman-mach-9-series-heat-ready-zone-control-9430a755","provider":"NVN Marine","version":"1.0","type":"link"}