{"product_id":"coleman-8330a733-cool-only-ducted-ceiling-assembly","title":"Coleman Mach 8330A733 Cool-Only Ducted Ceiling Assembly","description":"\u003cp class=\"nvn-hero\"\u003eThe Coleman Mach 8330A733 is the cool-only ceiling assembly for ducted RV air conditioners that run off a wall thermostat. It's the interior air distribution box that pushes cold air into your rig's overhead ductwork. Fits a wide range of Mach rooftop units, from the Mach 3 Plus to the Mach 15. White finish, direct OEM replacement.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Coleman Mach 8330A733 is the interior half of a ducted RV air conditioner. Up on the roof you've got the rooftop unit doing the actual cooling. Down inside the coach, this ceiling assembly is what takes that cold air and feeds it into the overhead ductwork that runs the length of your rig. Coleman calls it an air distribution box, or ADB. Most folks just call it the ceiling assembly. Either way, it's the piece you see when you look up at the ceiling grille.\u003c\/p\u003e\n\u003cp\u003eThis is the cool-only version. That matters. It's built for systems that do air conditioning and nothing else, so there's no heat strip and no provisions for one. If your rig runs a heat pump or an electric heat kit, this isn't the assembly you want. But if you've got a straight cooling setup and the old ceiling assembly has cracked, yellowed, or the damper's stopped working, this is the direct replacement.\u003c\/p\u003e\n\u003cp\u003eIt's also the ducted, wall-thermostat configuration. Two things to check before you order. First, ducted means the cold air doesn't just dump straight down into one room. It travels laterally through ceiling ducts and comes out at registers spread through the coach. Bigger motorhomes and longer travel trailers almost always run ducted. Second, wall thermostat. This assembly is made for systems where you set the temperature on a thermostat mounted on the wall, not on a control box built into the ceiling assembly itself. If your current setup has the buttons and controls right up on the ceiling, you're running a non-ducted or ceiling-control system and you'll want a different part.\u003c\/p\u003e\n\u003cp\u003eThe compatibility list is broad, which is one of the nice things about this assembly. It fits the Mach 15 (48204 series), the Mach 3 Plus (48203 series), the Mach I (48207 series), the Mach III Power Saver (48208 series), and the Roughneck (48203C9665 series). It also works with the Mach 8 rooftop and the Mach 8 CUB rooftop units. So whether you've got a big unit over the bedroom or a lower-profile Mach 8 up top, this ceiling assembly is the interior distribution piece that pairs with it on a lateral ducted system.\u003c\/p\u003e\n\u003cp\u003eWhy replace one of these in the first place? A few reasons come up again and again. The plastic gets brittle over years of sun and heat cycling, and eventually it cracks around the mounting screws or the duct collars. The foam gasket that seals the assembly to the roof unit dries out and lets conditioned air leak into the wrong places, so your AC runs longer and cools worse. Or the damper and filter frame just wear out. Swapping the whole ceiling assembly gets you a clean, sealed, good-as-new distribution box instead of chasing individual broken tabs.\u003c\/p\u003e\n\u003cp\u003eThe install is straightforward for anyone who's comfortable working over their head on a ladder. You drop the old assembly from the ceiling, transfer or replace the gasket, and mount the new one up to the same rooftop unit and duct openings. The white finish matches standard RV ceiling panels, so it blends in once it's up. You'll want to double-check that your ductwork and roof opening line up with this cool-only ducted layout before you commit, and that your system is genuinely thermostat-controlled.\u003c\/p\u003e\n\u003cp\u003eOne honest note: a ceiling assembly is a system part, not a standalone appliance. It doesn't include the rooftop AC unit, and it doesn't include the wall thermostat. It's the distribution box that ties those two together inside the coach. If you're not sure whether your rig is ducted or non-ducted, or cool-only versus heat pump, give us a shout before you order. We'd rather help you get the right part the first time than have you send one back. Coleman RVP builds these to fit their own rooftop lineup, and when you match the assembly to your unit, it's a clean repair that gets your AC blowing cold through the whole coach again.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eCool-only design for air-conditioning-only Coleman Mach ducted systems, with no heat strip or heat-kit provisions\u003c\/li\u003e\n  \u003cli\u003eLateral ducted configuration distributes conditioned air through the RV's overhead ductwork to registers throughout the coach\u003c\/li\u003e\n  \u003cli\u003eBuilt for wall-thermostat control, so temperature is set from a wall-mounted thermostat rather than a ceiling control box\u003c\/li\u003e\n  \u003cli\u003eWhite finish blends with standard RV ceiling panels\u003c\/li\u003e\n  \u003cli\u003eBroad compatibility across the Mach lineup: Mach 15, Mach 3 Plus, Mach I, Mach III Power Saver, Roughneck, plus Mach 8 and Mach 8 CUB rooftop units\u003c\/li\u003e\n  \u003cli\u003eMounts as the interior air distribution box directly below the rooftop unit\u003c\/li\u003e\n  \u003cli\u003eGenuine Coleman RVP replacement part (8330A733) for a cracked, aged, or leaking ceiling assembly\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 cool-only mean on this ceiling assembly?\u003c\/summary\u003e\n    \u003cp\u003eIt's built for air-conditioning-only systems. There's no heat strip and no provisions for one. If your rig runs a heat pump or an electric heat kit, this isn't the right assembly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this the ducted or non-ducted version?\u003c\/summary\u003e\n    \u003cp\u003eDucted. It's made for lateral ducted systems, where the cold air travels through the RV's overhead ductwork and comes out at registers spread through the coach rather than dumping straight down in one spot.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it come with a thermostat?\u003c\/summary\u003e\n    \u003cp\u003eNo. This assembly is designed for systems controlled by a separate wall thermostat, which is not included. If your controls are built into the ceiling itself, you're running a different type of system.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich Coleman Mach units does it fit?\u003c\/summary\u003e\n    \u003cp\u003eIt fits the Mach 15 (48204 series), Mach 3 Plus (48203 series), Mach I (48207 series), Mach III Power Saver (48208 series), and the Roughneck (48203C9665 series), plus the Mach 8 rooftop and Mach 8 CUB rooftop units.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat exactly is an air distribution box or ceiling assembly?\u003c\/summary\u003e\n    \u003cp\u003eIt's the interior part of the air conditioner that mounts to the ceiling below the rooftop unit. It takes the cold air the rooftop unit produces and feeds it into your coach's ductwork. Coleman calls it an air distribution box, or ADB.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this if my controls are on the ceiling instead of the wall?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the wall-thermostat configuration. If your buttons and controls are built into the ceiling assembly, you have a ceiling-control or non-ducted setup and need a different part.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this include the rooftop air conditioner?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the interior ceiling assembly only. The rooftop AC unit that does the actual cooling is separate, and this piece distributes its air inside the coach.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it work with a heat pump or electric heat kit?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the cool-only assembly with no heat provisions. Systems with a heat pump or electric heat strip use a different ceiling assembly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat color is it?\u003c\/summary\u003e\n    \u003cp\u003eWhite, which matches standard RV ceiling panels so it blends in once installed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an RV part?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's for Coleman Mach rooftop air conditioners used in RVs, motorhomes, and travel trailers running a lateral ducted system.\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 8330A733 Cool-Only Ducted Ceiling 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\u003c\/th\u003e\n\u003ctd\u003eColeman RVP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e8330A733\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790201280\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCooling Type\u003c\/th\u003e\n\u003ctd\u003eCool Only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eComponent Type\u003c\/th\u003e\n\u003ctd\u003eCeiling Assembly \/ Air Distribution Box (ADB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDuct Configuration\u003c\/th\u003e\n\u003ctd\u003eLateral Ducted System\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eControl Type\u003c\/th\u003e\n\u003ctd\u003eFor Use With Wall Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible AC Series\u003c\/th\u003e\n\u003ctd\u003eMach 15 (48204), Mach 3 Plus (48203), Mach I (48207), Mach III Power Saver (48208), Roughneck (48203C9665)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Rooftop Units\u003c\/th\u003e\n\u003ctd\u003eMach 8 Rooftop, Mach 8 CUB Rooftop\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRV \/ Motorhome \/ Travel Trailer Rooftop Air Conditioner\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 cool-only mean on this ceiling assembly?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's built for air-conditioning-only systems. There's no heat strip and no provisions for one. If your rig runs a heat pump or an electric heat kit, this isn't the right assembly.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this the ducted or non-ducted version?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Ducted. It's made for lateral ducted systems, where the cold air travels through the RV's overhead ductwork and comes out at registers spread through the coach rather than dumping straight down in one spot.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it come with a thermostat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This assembly is designed for systems controlled by a separate wall thermostat, which is not included. If your controls are built into the ceiling itself, you're running a different type of system.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which Coleman Mach units does it fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It fits the Mach 15 (48204 series), Mach 3 Plus (48203 series), Mach I (48207 series), Mach III Power Saver (48208 series), and the Roughneck (48203C9665 series), plus the Mach 8 rooftop and Mach 8 CUB rooftop units.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What exactly is an air distribution box or ceiling assembly?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the interior part of the air conditioner that mounts to the ceiling below the rooftop unit. It takes the cold air the rooftop unit produces and feeds it into your coach's ductwork. Coleman calls it an air distribution box, or ADB.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use this if my controls are on the ceiling instead of the wall?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the wall-thermostat configuration. If your buttons and controls are built into the ceiling assembly, you have a ceiling-control or non-ducted setup and need a different part.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does this include the rooftop air conditioner?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the interior ceiling assembly only. The rooftop AC unit that does the actual cooling is separate, and this piece distributes its air inside the coach.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it work with a heat pump or electric heat kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the cool-only assembly with no heat provisions. Systems with a heat pump or electric heat strip use a different ceiling assembly.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What color is it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"White, which matches standard RV ceiling panels so it blends in once installed.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this an RV part?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's for Coleman Mach rooftop air conditioners used in RVs, motorhomes, and travel trailers running a lateral ducted system.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman","offers":[{"title":"Default Title","offer_id":45055965593693,"sku":"2008237","price":157.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_47c4dd81-d52b-45cd-a33c-d028592fd92d.jpg?v=1789442922","url":"https:\/\/nvnmarine.com\/products\/coleman-8330a733-cool-only-ducted-ceiling-assembly","provider":"NVN Marine","version":"1.0","type":"link"}