{"product_id":"coleman-mach-9420-330-multi-zone-rv-wall-thermostat","title":"Coleman-Mach 9420-330 Multi-Zone RV Wall Thermostat, Black","description":"\u003cp class=\"nvn-hero\"\u003eThe Coleman-Mach 9420-330 is a 12-volt digital multi-zone wall thermostat for RVs, controlling up to four heating and cooling zones from one black-cased panel. It's the same wall control Coleman also sells under the newer 9420A330 number. If you're running two rooftop units or a cooling-and-heating mix, this is the panel that ties them together.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Coleman-Mach 9420-330 is the multi-zone wall thermostat that runs the climate side of a bigger rig. If your coach or fifth wheel has more than one rooftop unit, or a mix of cooling and heating zones, this is the black-cased digital control that ties them together at the wall. Coleman renumbered it to 9420A330 along the way, so you'll see both numbers floating around. Same thermostat, same job.\u003c\/p\u003e\n\u003cp\u003eHere's what it actually does. It manages up to four separate heating and cooling zones from one panel, so the front bedroom and the main living area don't have to run off the same setpoint. The digital touch display is easy to read and easy to set, even for someone who's never touched an RV thermostat before. You get a temperature range from 32 to 158°F and built-in fan speed control, which matters when you're trying to keep a big coach comfortable without the blower running full tilt all night.\u003c\/p\u003e\n\u003cp\u003ePower-wise it's a 12-volt DC unit with an operating range of 9 to 16 VDC, so it lives happily on standard coach house power and rides out the normal voltage sag you get when the batteries are working under load. It mounts flush to the wall in place of an older analog or single-zone control. If you're stepping up from a basic mechanical thermostat, this is the jump to real multi-zone control where each area gets its own setpoint.\u003c\/p\u003e\n\u003cp\u003eThe wall thermostat is only half the system. It talks to a Coleman-Mach multi-zone control box wired at each rooftop unit, and that box is what actually switches the compressor, heat, and fan. So make sure your control boxes and the thermostat are on the same page before you order. If you're replacing a failed 9420-330 or 9420A330 in an existing setup, this drops right in with no reprogramming of the rest of the system.\u003c\/p\u003e\n\u003cp\u003eWho's it for? Owners of larger motorhomes and fifth wheels running two or more rooftop AC units, or a rooftop unit paired with a furnace or heat pump. It's the right call when you want the back of the coach cooler than the front, or heat in the bedroom while the living room runs AC. It's overkill for a single-zone trailer with one rooftop unit and a basic thermostat, and it's an RV component, not a residential thermostat, so don't try to wire it into a house HVAC panel.\u003c\/p\u003e\n\u003cp\u003eInstall is straightforward for a competent DIYer who can identify the low-voltage zone wiring behind the old control. And any RV tech will have it dialed in quickly. Set your zones once, and day to day you're just nudging setpoints on the touch display. The black case is standard for the Coleman-Mach line and reads clearly at the wall. It's a clean, honest upgrade for anyone who's tired of fighting a single thermostat to keep a two-unit coach comfortable.\u003c\/p\u003e\n\u003cp\u003eThink about how a big rig actually gets used. You park for the weekend, the sun beats on one side of the coach all afternoon, and the bedroom over the rear axle turns into an oven while the front stays fine. With a single thermostat you're stuck averaging that out. With this multi-zone control you set the rear zone cooler and let the front coast, and the system only runs the units that need to run. That's easier on the batteries and easier on the generator, and it's a lot more comfortable when the whole family is aboard. The same logic works in reverse on a cold morning when you want heat in the bedroom while the living area stays neutral.\u003c\/p\u003e\n\u003cp\u003eA couple of ordering notes. Because Coleman carries this under both 9420-330 and 9420A330, either number gets you the same black-cased digital wall thermostat, so match whichever one your old unit shows. It's the wall control only, not a control box and not a rooftop unit, so if you're building a system from scratch you'll want the matching zone control boxes too. And if you're not sure how many zones your coach is wired for, count your rooftop units and any separate furnace or heat pump before you order. When in doubt, our crew can help you sort out what your rig needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eControls up to 4 separate heating and cooling zones from one wall panel\u003c\/li\u003e\n  \u003cli\u003eDigital touch display that's easy to read and set\u003c\/li\u003e\n  \u003cli\u003e12-volt DC operation with a 9 to 16 VDC operating range for coach house power\u003c\/li\u003e\n  \u003cli\u003eTemperature range from 32 to 158°F\u003c\/li\u003e\n  \u003cli\u003eBuilt-in fan speed control for quieter overnight running\u003c\/li\u003e\n  \u003cli\u003eBlack case, flush wall mount in place of an older analog control\u003c\/li\u003e\n  \u003cli\u003ePairs with Coleman-Mach multi-zone control boxes at each rooftop unit\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for the 9420-330 \/ 9420A330 wall thermostat\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 9420-330 thermostat control?\u003c\/summary\u003e\n    \u003cp\u003eIt's a multi-zone RV wall thermostat that manages up to four separate heating and cooling zones from one panel, so different areas of the coach can run their own setpoints.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the 9420-330 the same as the 9420A330?\u003c\/summary\u003e\n    \u003cp\u003eYes. Coleman renumbered this wall thermostat to 9420A330, and the original label calls out to also use the new 9420A330 number. It's the same digital multi-zone wall control.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat voltage does it run on?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 12-volt DC unit with an operating voltage range of 9 to 16 VDC, so it runs off standard RV house power.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it have a touch display?\u003c\/summary\u003e\n    \u003cp\u003eYes. It uses an easy-to-read digital touch display for setting zones and temperatures.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat temperature range does it cover?\u003c\/summary\u003e\n    \u003cp\u003eThe thermostat operates across a range of 32 to 158°F.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan it control fan speed?\u003c\/summary\u003e\n    \u003cp\u003eYes, it has built-in fan speed control, which helps keep the blower quieter when you don't need full airflow.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it work with my existing Coleman-Mach setup?\u003c\/summary\u003e\n    \u003cp\u003eIt pairs with Coleman-Mach multi-zone control boxes wired at each rooftop unit. Those boxes do the actual switching, so confirm your control boxes match before ordering. If you're replacing a failed 9420-330 or 9420A330, it drops right in.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat color is the case?\u003c\/summary\u003e\n    \u003cp\u003eBlack. It's the standard black case for the Coleman-Mach multi-zone line.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an RV thermostat or a home thermostat?\u003c\/summary\u003e\n    \u003cp\u003eIt's an RV component designed for coach heating and cooling systems. Don't wire it into a residential HVAC panel.\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 Multi-Zone Wall Thermostat 9420-330, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eColeman-Mach\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e9420-330\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790009176\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eReplacement \/ New Number\u003c\/th\u003e\n\u003ctd\u003e9420A330\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eMulti-Zone RV Wall Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eZones Supported\u003c\/th\u003e\n\u003ctd\u003eUp to 4 heating and cooling zones\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eDigital touch display\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSystem Voltage\u003c\/th\u003e\n\u003ctd\u003e12 Volt DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOperating Voltage Range\u003c\/th\u003e\n\u003ctd\u003e9 to 16 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTemperature Range\u003c\/th\u003e\n\u003ctd\u003e32 to 158°F\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFan Speed Control\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCase Color\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFlush wall mount\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 9420-330 thermostat control?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a multi-zone RV wall thermostat that manages up to four separate heating and cooling zones from one panel, so different areas of the coach can run their own setpoints.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the 9420-330 the same as the 9420A330?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Coleman renumbered this wall thermostat to 9420A330, and the original label calls out to also use the new 9420A330 number. It's the same digital multi-zone wall control.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What voltage does it run on?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 12-volt DC unit with an operating voltage range of 9 to 16 VDC, so it runs off standard RV house power.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it have a touch display?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It uses an easy-to-read digital touch display for setting zones and temperatures.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What temperature range does it cover?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The thermostat operates across a range of 32 to 158\\u00b0F.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can it control fan speed?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, it has built-in fan speed control, which helps keep the blower quieter when you don't need full airflow.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it work with my existing Coleman-Mach setup?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It pairs with Coleman-Mach multi-zone control boxes wired at each rooftop unit. Those boxes do the actual switching, so confirm your control boxes match before ordering. If you're replacing a failed 9420-330 or 9420A330, it drops right in.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What color is the case?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Black. It's the standard black case for the Coleman-Mach multi-zone line.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this an RV thermostat or a home thermostat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's an RV component designed for coach heating and cooling systems. Don't wire it into a residential HVAC panel.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman-Mach","offers":[{"title":"Default Title","offer_id":45005936885853,"sku":"2008015","price":184.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_fe7dd98c-3aba-4903-ae0a-260af245b870.jpg?v=1788768877","url":"https:\/\/nvnmarine.com\/products\/coleman-mach-9420-330-multi-zone-rv-wall-thermostat","provider":"NVN Marine","version":"1.0","type":"link"}