Coleman Mach 9420A382 Heat Pump Thermostat 12V
Coleman Mach 9420A382 Heat Pump Thermostat 12V — Product description
The Coleman Mach 9420A382 is a single-stage digital wall thermostat built for Coleman Mach heat pump systems. It runs both the heat pump and gas furnace from one black panel, with a clear digital readout, high and low fan speeds, and Auto or On fan modes. Runs on 12 volt DC and ships with the plug connector for a clean wire-in.
The Coleman Mach 9420A382 is the wall thermostat that runs the show in a Coleman Mach heat pump setup. It's a single-stage digital control built to manage both the heat pump and a gas furnace, so your coach moves between cooling, electric heat, and gas backup from one clean black panel. If your Coleman Mach heat pump system lost its thermostat or the display went dark, this is the direct replacement.
Here's the important part. This control is made for Coleman Mach heat pump systems only. It isn't a universal thermostat you drop onto any rooftop unit. It talks to the Coleman Mach heat pump and gas furnace specifically, and that's what lets it hand heating duty over to the furnace when it's too cold outside for the heat pump to keep up. On a chilly morning in the mountains, that handoff is what keeps the coach warm without you touching a thing.
The digital readout makes setting temperature simple. No squinting at a dial. You get high and low fan speed control, so you can run the blower quiet overnight and turn it up when you want to heat or cool the coach fast. Fan mode switches between Auto and On. Auto cycles the fan with the system, and On runs it continuously to keep air moving and even out the hot and cold spots.
It runs on 12 volt DC, the standard for RV control circuits, and it ships with the plug connector so wiring in is straightforward. The black case measures 5-1/2 inches long by 3-3/4 inches wide by 1-1/8 inches deep, a compact footprint that fits the typical Coleman Mach thermostat opening. Most folks comfortable with basic 12V work can swap this in an afternoon. One thing to confirm first: make sure your rooftop unit is actually a heat pump model. This control won't do the heat pump job on a cool-only air conditioner.
Key Features
- Single-stage digital control for Coleman Mach heat pump and gas furnace systems, one panel for cooling, electric heat, and gas backup
- Digital readout for precise temperature setting, no analog dial guesswork
- High and low fan speed control to run quiet overnight or move air fast
- Auto and On fan mode, cycle the fan with the system or run it continuously for even airflow
- 12 volt DC operation, the standard RV rooftop control voltage
- Ships with the plug connector for a straightforward wire-in
- Compact black case, 5-1/2 in L x 3-3/4 in W x 1-1/8 in H, fits standard Coleman Mach openings
Why Buy from NVN Marine
- Authorized Coleman reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Coleman Mach 9420A382 Heat Pump Digital Wall Thermostat |
|---|---|
| Brand | Coleman |
| Manufacturer Part Number | 9420A382 |
| UPC | 755790009244 |
| Stage | Single Stage |
| System Compatibility | Coleman Mach Heat Pump Systems Only |
| Control Function | Heat Pump / Gas Furnace Control |
| Display | Digital Readout |
| Voltage | 12 Volt DC |
| Fan Speed Control | High / Low |
| Fan Mode Control | Auto / On |
| Case Color | Black |
| Connection | With Plug |
| Dimensions (L x W x H) | 5-1/2 in x 3-3/4 in x 1-1/8 in |
Frequently asked questions
What systems does the Coleman Mach 9420A382 thermostat work with?
It's built for Coleman Mach heat pump systems only. It controls both the heat pump and the gas furnace in those systems. It isn't a universal thermostat and won't work correctly on a cool-only rooftop air conditioner.
Is this a single-stage or multi-stage thermostat?
Single stage. It manages one stage of heating and cooling through the Coleman Mach heat pump, with the gas furnace handling backup heat when the heat pump can't keep up in colder weather.
What voltage does it run on?
12 volt DC, the standard control voltage for RV rooftop systems. It ships with the plug connector so you can wire it into a Coleman Mach heat pump system directly.
Does it have fan speed control?
Yes. You get high and low fan speed settings, plus an Auto and On mode. Auto cycles the fan with the heating and cooling cycle, and On runs the blower continuously to keep air moving through the coach.
What are the dimensions of the thermostat?
The black case measures 5-1/2 inches long, 3-3/4 inches wide, and 1-1/8 inches deep. That compact footprint fits the standard Coleman Mach thermostat opening.
Can this control a gas furnace?
Yes, within a Coleman Mach heat pump system. It's designed to manage heat pump heating and cooling and hand off to the gas furnace for backup heat when it gets cold.
