{"product_id":"coleman-mach-9430a751-cool-only-zone-control-box-kit","title":"Coleman-Mach 9430A751 Cool Only Zone Control Box Assembly","description":"\u003cp class=\"nvn-hero\"\u003eThe Coleman-Mach 9430A751 is the zone control box that turns a single wall thermostat into the brain for your whole RV climate system. It's the cool-only version, built to run Coleman Mach rooftop air conditioners through a 9330A3341 or 9330A3351 zone thermostat. If you're adding zone control or replacing a dead control box, this is the piece that ties it together.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eHere's the short version. The Coleman-Mach 9430A751 is a digital zone control box assembly. It sits between your Coleman Mach zone thermostat and your rooftop air conditioners, and it's what lets one thermostat on the wall run multiple units and multiple heating zones from a single spot. This is the cool-only version, so it's built for Coleman Mach cool-only air conditioners. Not heat pumps.\u003c\/p\u003e\n\u003cp\u003eIf you've got a larger RV with more than one rooftop AC, you already know the headache of walking front to back adjusting units one at a time. Zone control fixes that. The 9xxx series setup can run up to four rooftop air conditioners plus four zones of gas, hydronic, or electric strip heat, all from one digital thermostat. The 9430A751 box is the hub that makes that possible. It reads the thermostat, talks to each unit, and keeps the zones straight.\u003c\/p\u003e\n\u003cp\u003eOne thing to be clear about up front. This is the control box, not the thermostat. You'll need a Coleman Mach 9330A3341 (black) or 9330A3351 zone thermostat to run it, and those are sold separately. If you already have one of those thermostats on the wall and your old control box quit, this is your replacement. If you're building a zone system from scratch, plan on buying both.\u003c\/p\u003e\n\u003cp\u003eThe cool-only designation matters, so don't skip past it. This box is wired for cool-only air conditioners. If your rig runs Coleman Mach heat pump units, you want the heat-ready or heat pump version instead, not this one. Matching the control box to the type of AC you actually have is the difference between a system that works on the first try and a service call. When in doubt, check the model tag on your rooftop unit before you order.\u003c\/p\u003e\n\u003cp\u003eInstall is straightforward for anyone comfortable working with 12-volt RV wiring. The box mounts inside, typically in a cabinet or ceiling chase near the thermostat run, and wires into your existing AC and thermostat harness. If you've wired a thermostat before, this is familiar territory. If you haven't, it's still a reasonable afternoon project with the Coleman Mach wiring diagram in hand. Take a photo of your old connections before you pull anything.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Owners of motorhomes and larger fifth wheels running two or more Coleman Mach cool-only rooftop units who want single-thermostat control. Anyone replacing a failed 9430A751 box. And folks upgrading an older single-zone setup to the 9-series digital zone control. It's genuine Coleman Mach hardware, so it drops into the ecosystem the way it's supposed to.\u003c\/p\u003e\n\u003cp\u003eA quick word on the two compatible thermostats. The 9330A3341 is the black five-button digital zone thermostat, and the 9330A3351 is its sibling in the same family. Either one runs this control box. They give you a digital readout and per-zone control, which is a real step up from an old mechanical dial. If you're picking a thermostat to go with this box, either model is a correct match. Just make sure you're buying a zone thermostat and not a standard single-zone head.\u003c\/p\u003e\n\u003cp\u003eWhat it's not: it's not a thermostat, it's not a heat pump controller, and it's not a universal box that works with every brand of RV air conditioner. It's a Coleman Mach part for Coleman Mach cool-only systems. Because it's genuine Coleman-Mach gear rather than a generic aftermarket board, the connectors and logic line up with the rest of your system. That saves you from chasing adapter pigtails or guessing at pin assignments, and it means the full manufacturer warranty stands behind it. We keep these in stock and ship the same day when your order's in before the cutoff, so a dead control box doesn't have to mean a hot weekend waiting on parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eDigital zone control box assembly for Coleman Mach cool-only rooftop air conditioners\u003c\/li\u003e\n  \u003cli\u003eCool-only design, matched to Coleman Mach cool-only AC units (not heat pump systems)\u003c\/li\u003e\n  \u003cli\u003eRuns on the Coleman Mach 9330A3341 or 9330A3351 zone thermostat, sold separately\u003c\/li\u003e\n  \u003cli\u003e9xxx series zone control manages up to four rooftop air conditioners from one thermostat\u003c\/li\u003e\n  \u003cli\u003eControls up to four heating zones of gas, hydronic, or electric strip heat\u003c\/li\u003e\n  \u003cli\u003eGenuine Coleman-Mach hardware, plug-matched to the Coleman Mach system\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for a failed 9430A751 control box\u003c\/li\u003e\n  \u003cli\u003eMounts inside and wires into standard 12-volt RV AC and thermostat harness\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\u003eDoes the 9430A751 come with a thermostat?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the zone control box only. You'll need a Coleman Mach 9330A3341 or 9330A3351 zone thermostat to run it, and that's sold separately. If you already have one on the wall, you're set.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this work with a Coleman Mach heat pump?\u003c\/summary\u003e\n    \u003cp\u003eNo. The 9430A751 is the cool-only control box, wired for cool-only air conditioners. Heat pump systems need the heat-ready or heat pump version instead. Check the model tag on your rooftop unit before you order.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow many air conditioners can it control?\u003c\/summary\u003e\n    \u003cp\u003eThe 9xxx series zone control runs up to four rooftop air conditioners plus four zones of gas, hydronic, or electric strip heat from a single thermostat. This box is the hub that makes that possible.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich thermostats are compatible?\u003c\/summary\u003e\n    \u003cp\u003eThe Coleman Mach 9330A3341, which is the black five-button digital zone thermostat, or the 9330A3351 in the same family. Either one runs this control box.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eMy old control box quit. Is this a direct replacement?\u003c\/summary\u003e\n    \u003cp\u003eYes, if your rig ran a 9430A751 with a compatible Coleman Mach zone thermostat. It drops into the same wiring. Snap a photo of your old connections before you pull anything.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a genuine Coleman-Mach part?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's genuine Coleman-Mach hardware, so the connectors and control logic line up with the rest of your Coleman Mach system. No adapter pigtails, no guessing at pin assignments.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\n    \u003cp\u003eIf you're comfortable with 12-volt RV wiring, yes. It mounts inside, usually in a cabinet or ceiling chase near the thermostat run, and wires into your existing AC and thermostat harness. Keep the Coleman Mach wiring diagram handy.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the difference between the cool-only box and the heat-ready version?\u003c\/summary\u003e\n    \u003cp\u003eThis 9430A751 is built for cool-only air conditioners. The heat-ready version supports systems set up for electric strip or heat pump heating. Match the box to the type of AC you actually have on the roof.\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 9430A751 Cool Only Zone Control Box Assembly\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\u003e9430A751\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790203093\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eColeman-Mach (RVP)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eDigital Zone Control Box Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003ctd\u003eCool Only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eControl Series\u003c\/th\u003e\n\u003ctd\u003e9xxx Series Digital Zone Control\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Thermostats\u003c\/th\u003e\n\u003ctd\u003eColeman Mach 9330A3341 or 9330A3351\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eThermostat\u003c\/th\u003e\n\u003ctd\u003eSold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAir Conditioners Controlled\u003c\/th\u003e\n\u003ctd\u003eUp to 4 rooftop units\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHeating Zones Controlled\u003c\/th\u003e\n\u003ctd\u003eUp to 4 (gas, hydronic, or electric strip)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRV rooftop air conditioning\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\": \"Does the 9430A751 come with a thermostat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the zone control box only. You'll need a Coleman Mach 9330A3341 or 9330A3351 zone thermostat to run it, and that's sold separately. If you already have one on the wall, you're set.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will this work with a Coleman Mach heat pump?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. The 9430A751 is the cool-only control box, wired for cool-only air conditioners. Heat pump systems need the heat-ready or heat pump version instead. Check the model tag on your rooftop unit before you order.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many air conditioners can it control?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 9xxx series zone control runs up to four rooftop air conditioners plus four zones of gas, hydronic, or electric strip heat from a single thermostat. This box is the hub that makes that possible.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which thermostats are compatible?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The Coleman Mach 9330A3341, which is the black five-button digital zone thermostat, or the 9330A3351 in the same family. Either one runs this control box.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"My old control box quit. Is this a direct replacement?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, if your rig ran a 9430A751 with a compatible Coleman Mach zone thermostat. It drops into the same wiring. Snap a photo of your old connections before you pull anything.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a genuine Coleman-Mach part?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's genuine Coleman-Mach hardware, so the connectors and control logic line up with the rest of your Coleman Mach system. No adapter pigtails, no guessing at pin assignments.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I install it myself?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"If you're comfortable with 12-volt RV wiring, yes. It mounts inside, usually in a cabinet or ceiling chase near the thermostat run, and wires into your existing AC and thermostat harness. Keep the Coleman Mach wiring diagram handy.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the difference between the cool-only box and the heat-ready version?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"This 9430A751 is built for cool-only air conditioners. The heat-ready version supports systems set up for electric strip or heat pump heating. Match the box to the type of AC you actually have on the roof.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman","offers":[{"title":"Default Title","offer_id":45057041530973,"sku":"2008314","price":144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_af8d2e22-d876-45c8-b54c-8e9034517a88.jpg?v=1789467776","url":"https:\/\/nvnmarine.com\/products\/coleman-mach-9430a751-cool-only-zone-control-box-kit","provider":"NVN Marine","version":"1.0","type":"link"}