Wall thermostat conversion kit
Ducted Wall Thermostat Conversion Kit
ChillGrille ducted ceiling assembly with built-in control box + wall thermostat. Uses your existing Coleman-Mach rooftop unit.
In stock. Ships today if ordered by 12 PM ET on a weekday.
Check the fit
- Fits Coleman-Mach 3 / 15 / 10 / 8 (ducted).
- Standard 14 x 14 in roof opening.
- Needs: A Coleman-Mach rooftop air conditioner (not a heat pump) and in-roof ducting.
Thermostat wire to the wall and a 12 V DC supply to the thermostat. - Not for non-ducted RVs
- Not for heat pumps
- Thermostat wire and 12 V supply not included
- Heat strip not included
- Not for Dometic or Furrion units
- Free shippingOrders over $200, lower 48
- 30-day returnsUnopened, 10 percent restocking
Reviews
Full specifications
| Part number | |
|---|---|
| Fits | Coleman-Mach 3 / 15 / 10 / 8 (ducted) |
| Includes | ChillGrille ducted ceiling assembly with built-in control box + wall thermostat. Uses your existing Coleman-Mach rooftop unit. |
| Also needs | A Coleman-Mach rooftop air conditioner (not a heat pump) and in-roof ducting. Thermostat wire to the wall and a 12 V DC supply to the thermostat. |
| Roof opening | 14 x 14 in |
| Airflow | Ducted |
| Heat | Cool Only or Heat Ready (by option) |
| Controls | 12V wall thermostat (analog or WiFi) |
| Replaces | Coleman-Mach 8330A763 manual-control ducted ceiling assembly, Older Coleman-Mach knob-control ducted ceiling assemblies |
| Compatible controls | Included and matched: 8430A633 with 9420-352; 8430A635 with 9420-351 or 9420-391. Control box built into the ChillGrille. |
| Not for | Not for non-ducted RVs; Not for heat pumps; Thermostat wire and 12 V supply not included; Heat strip not included; Not for Dometic or Furrion units |
What's in the box
What is in the box
- Coleman-Mach ChillGrille ducted ceiling assembly with built-in 12 V control box, filters and hardware: 8430A633 cool only, or 8430A635 heat ready
- Wall thermostat: 9420-352 analog cool only, 9420-351 analog heat/cool, or 9420-391 WiFi
- Not included: thermostat wire to the wall, heat strip, rooftop unit
Questions buyers ask
Questions buyers ask
Which option do I pick?
Cool only if the furnace has its own thermostat and you never want electric heat. Heat ready if one stat should run the furnace too, or you may add a heat strip. WiFi to start and schedule from your phone.
Do I need a separate control box?
No. The ChillGrille has it built in. The 8330-752 and 9330C755 packages are for plenum-only assemblies and repairs.
Do I need to run wires?
Yes: thermostat wire from the ceiling assembly to the wall, and 12 V DC to the thermostat circuit.
I have a Coleman-Mach heat pump. Does this work?
No. Ducted heat pumps use the 8630A635 heat pump ChillGrille with a 9420-391 WiFi stat.
Shipping?
Ground, free over $200 in the lower 48, from the nearest US warehouse. In-stock orders placed by 12 PM ET on a weekday ship the same day.
Shipping, returns and warranty
Free ground shipping in the lower 48 on orders over $200. In-stock orders placed by 12 PM ET on a weekday ship the same day from the nearest US warehouse. Check the box on delivery and report damage within 24 hours with photos; we file the carrier claim.
Returns within 30 days, unopened, with a 10 percent restocking fee; buyer pays return shipping. Kits that don't fit your opening and airflow come back free under the Fit Guarantee.
2-year Coleman-Mach limited warranty. We handle the claim with Airxcel.
About Coleman-Mach
About Coleman-Mach
Coleman-Mach rooftop air conditioners are built by Airxcel in Wichita, Kansas, and have been since 1967. They are the original equipment on more RVs than any other brand, which is why the ceiling assemblies, controls and repair parts are still available for units twenty years old. Every unit carries the Coleman-Mach 2-year limited warranty; Kate RV handles the claim with Airxcel for you.