{"product_id":"coleman-9430-4553-non-ducted-ceiling-plenum","title":"Coleman 9430-4553 Non-Ducted Ceiling Plenum, Wall Thermostat","description":"\u003cp class=\"nvn-hero\"\u003eThis is the non-ducted ceiling plenum for Coleman Mach rooftop air conditioners, MPN 9430-4553. It's the plenum-only version, built for rigs that run a wall thermostat instead of a ceiling control box. If your old plenum cracked or you're setting up wall-thermostat control, this is the interior assembly that mounts under the roof unit and pushes conditioned air into the cabin.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eIf you've got a Coleman Mach non-ducted rooftop air conditioner, the ceiling plenum is the interior half of the system. It bolts to the ceiling of your RV directly under the roof-mounted unit, and it's the piece that actually moves conditioned air into the living space. This is Coleman part 9430-4553, the plenum-only assembly built for setups that run a wall thermostat instead of a ceiling-mounted control box.\u003c\/p\u003e\n\u003cp\u003eNon-ducted is the simplest way a rooftop unit can be set up. Instead of routing air through ductwork hidden in the ceiling, a non-ducted system drops the cold air straight down through the plenum into one open space. You'll find this arrangement on smaller travel trailers, truck campers, and single-zone coaches where one roof unit cools the whole cabin. The plenum houses the return-air grille and the supply louvers, so it's the part you actually see and touch from inside. Air gets pulled back up through the filter, across the evaporator in the roof unit, and pushed back down through the discharge vents.\u003c\/p\u003e\n\u003cp\u003eHere's the important detail. A lot of non-ducted ceiling assemblies come with the controls built right into the plenum, a knob or a small panel you reach up and adjust. This one doesn't. It's the plenum-only version, which means the temperature and fan control live on a wall thermostat somewhere in the coach. That's a cleaner setup for a lot of owners. You set the temp at eye level instead of reaching up to the ceiling, and it plays nicely with the zone-control and digital wall thermostats Coleman uses across the Mach line. If your rig is wired for a wall thermostat, or you're converting to one, this is the plenum you want.\u003c\/p\u003e\n\u003cp\u003eMost folks buying this are replacing a plenum that's seen better days. UV exposure and years of vibration take a toll. The plastic gets brittle, louvers snap, the return grille cracks, or a leak stained the whole assembly and it's time for a fresh one. Swapping the plenum is a job a handy owner can knock out in an afternoon. You drop the old assembly, transfer or replace the filter, line the new plenum up with the roof unit's opening, and snug it to the ceiling. Take your time on the gasket and the fit so you don't get air bypass or a whistle when the blower runs.\u003c\/p\u003e\n\u003cp\u003eBecause it's non-ducted, the air has a short, direct path from the roof unit into the cabin, which means strong airflow and quick cooldown on a hot afternoon. There's no duct run to lose air pressure along the way. The tradeoff is that everything cools as one zone, so it's ideal for open-floorplan trailers and campers rather than a big coach where you'd want separate bedroom and living-area control. For the rigs it's meant for, a non-ducted plenum is hard to beat for straightforward, reliable cooling.\u003c\/p\u003e\n\u003cp\u003eA couple of things this is not. It's not the air conditioner itself, and it's not the roof-mounted mechanical unit with the compressor and evaporator. It's the interior ceiling plenum only. It also doesn't include a wall thermostat, so if you're building a system from scratch you'll need to source the matching Coleman wall stat separately. And because it's the plenum-only version, there's no ceiling control box in the box. Confirm your Mach unit is the non-ducted style and that it's set up for wall-thermostat control before you order, so you end up with the right interior assembly the first time.\u003c\/p\u003e\n\u003cp\u003eKeep the return-air filter clean once the new plenum is in. A clogged filter is the number one reason a rooftop unit stops cooling well, and the filter sits right in the plenum where it's easy to pull and rinse. Give it a look at the start of every season and after any dusty stretch of travel. A clean filter and a well-sealed plenum are most of what keeps a Mach unit blowing cold for years.\u003c\/p\u003e\n\u003cp\u003eColeman has built RV comfort gear for decades, and the Mach line is one of the most common rooftop setups on the road. Match this plenum to your specific Mach model, verify it's a non-ducted, wall-thermostat configuration, and you've got a clean replacement that puts the air right where you need it. When in doubt on fitment, check your unit's model number against the part before you install.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eNon-ducted ceiling plenum for Coleman Mach rooftop air conditioners, the interior assembly that distributes cooled air into the cabin\u003c\/li\u003e\n  \u003cli\u003ePlenum-only design with no ceiling control box, built for rigs that run a wall thermostat\u003c\/li\u003e\n  \u003cli\u003eWorks with Coleman Mach wall-thermostat control for eye-level temperature and fan adjustment\u003c\/li\u003e\n  \u003cli\u003eHouses the return-air grille and supply louvers, the part you see and reach from inside the coach\u003c\/li\u003e\n  \u003cli\u003eColeman part number 9430-4553 for a direct replacement of a cracked, faded, or damaged plenum\u003c\/li\u003e\n  \u003cli\u003eSuited to single-zone travel trailers, truck campers, and open-floorplan coaches\u003c\/li\u003e\n  \u003cli\u003eEasy-access return-air filter location for quick seasonal cleaning\u003c\/li\u003e\n  \u003cli\u003eBacked by Coleman, a longtime name in RV rooftop cooling\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 is this plenum for?\u003c\/summary\u003e\n    \u003cp\u003eIt's the interior ceiling plenum for a Coleman Mach non-ducted rooftop air conditioner. It mounts to the ceiling under the roof unit and distributes cooled air into the cabin. This is the plenum-only version, meant for setups controlled by a wall thermostat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this include the air conditioner?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the interior ceiling plenum only. It's not the roof-mounted mechanical unit with the compressor and evaporator, and it isn't a complete air conditioner.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it come with a wall thermostat?\u003c\/summary\u003e\n    \u003cp\u003eNo. It's the plenum-only assembly with no thermostat and no ceiling control box. If you're building a system from scratch, source the matching Coleman wall thermostat separately.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does non-ducted mean?\u003c\/summary\u003e\n    \u003cp\u003eNon-ducted means the cold air drops straight down through the plenum into one open space instead of running through ductwork in the ceiling. It cools as a single zone, which is why it's common on smaller trailers and campers.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy is this the plenum-only version?\u003c\/summary\u003e\n    \u003cp\u003eBecause the controls live on a wall thermostat instead of being built into the ceiling. That gives you eye-level temperature and fan control and works with Coleman's Mach wall thermostats.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this fit my Coleman Mach unit?\u003c\/summary\u003e\n    \u003cp\u003eMatch it to your specific Mach model and confirm your unit is a non-ducted, wall-thermostat configuration before ordering. Check your unit's model number against the part so you get the right interior assembly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan a handy owner install it?\u003c\/summary\u003e\n    \u003cp\u003eYes, it's usually an afternoon job. You drop the old assembly, transfer or replace the filter, line the new plenum up with the roof unit's opening, then seal and snug it to the ceiling so there's no air bypass.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I keep it cooling well?\u003c\/summary\u003e\n    \u003cp\u003eKeep the return-air filter clean. It sits right in the plenum where it's easy to pull and rinse. Check it at the start of every season and after dusty travel to keep the Mach unit blowing cold.\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 Non-Ducted Ceiling Plenum (Plenum Only, Wall Thermostat)\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\u003e9430-4553\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790203567\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\u003eSystem Type\u003c\/th\u003e\n\u003ctd\u003eNon-Ducted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003ctd\u003eCeiling Plenum (Plenum Only)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eControl Type\u003c\/th\u003e\n\u003ctd\u003eWall Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCompatible Units\u003c\/th\u003e\n\u003ctd\u003eColeman Mach Air Conditioners\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCeiling Control Box\u003c\/th\u003e\n\u003ctd\u003eNot Included\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eRV Rooftop Air Conditioner Plenum\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eKeystone Part Number\u003c\/th\u003e\n\u003ctd\u003e94304553\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eKeystone VCPN\u003c\/th\u003e\n\u003ctd\u003eC7W94304553\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 is this plenum for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the interior ceiling plenum for a Coleman Mach non-ducted rooftop air conditioner. It mounts to the ceiling under the roof unit and distributes cooled air into the cabin. This is the plenum-only version, meant for setups controlled by a wall thermostat.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does this include the air conditioner?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the interior ceiling plenum only. It's not the roof-mounted mechanical unit with the compressor and evaporator, and it isn't a complete air conditioner.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it come with a wall thermostat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. It's the plenum-only assembly with no thermostat and no ceiling control box. If you're building a system from scratch, source the matching Coleman wall thermostat separately.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does non-ducted mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Non-ducted means the cold air drops straight down through the plenum into one open space instead of running through ductwork in the ceiling. It cools as a single zone, which is why it's common on smaller trailers and campers.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why is this the plenum-only version?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Because the controls live on a wall thermostat instead of being built into the ceiling. That gives you eye-level temperature and fan control and works with Coleman's Mach wall thermostats.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will this fit my Coleman Mach unit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Match it to your specific Mach model and confirm your unit is a non-ducted, wall-thermostat configuration before ordering. Check your unit's model number against the part so you get the right interior assembly.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can a handy owner install it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, it's usually an afternoon job. You drop the old assembly, transfer or replace the filter, line the new plenum up with the roof unit's opening, then seal and snug it to the ceiling so there's no air bypass.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I keep it cooling well?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Keep the return-air filter clean. It sits right in the plenum where it's easy to pull and rinse. Check it at the start of every season and after dusty travel to keep the Mach unit blowing cold.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman","offers":[{"title":"Default Title","offer_id":45056947978333,"sku":"2008306","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_df7c4f9c-006f-4a88-8ada-ff75ea1395dc.png?v=1789465002","url":"https:\/\/nvnmarine.com\/products\/coleman-9430-4553-non-ducted-ceiling-plenum","provider":"NVN Marine","version":"1.0","type":"link"}