The 8630A635 ChillGrille is the factory-correct ceiling assembly for Coleman Mach heat pump rooftop units in lateral ducted installations. Built to handle both cooling and heating airflow, it brings the exclusive DirectFlow louver system to your RV interior -- letting you aim conditioned air exactly where passengers need it, not just straight down at the floor.
Most generic ceiling assemblies are designed only for cooling. The Coleman Mach ChillGrille is engineered to handle the higher plenum temperatures produced by heat pump operation without warping, discoloring, or degrading the louver mechanism. If your Coleman Mach rooftop unit is a heat pump model, this is the ceiling assembly it was designed to mate with.
The lateral ducted configuration means conditioned air exits the ceiling assembly horizontally along the ceiling line rather than dropping straight down. This improves air distribution across the full length of the coach, reduces cold drafts on seated passengers, and is the correct configuration for ducted RV HVAC installations that route air through a ceiling duct run.
Rated for the elevated discharge temperatures of heat pump operation -- will not warp or discolor under heating mode airflow.
Adjustable louvers let occupants direct airflow left, right, or forward -- not just straight down. Personalized comfort without a separate deflector kit.
Air exits horizontally through the ceiling duct run for even distribution throughout the coach -- the correct configuration for ducted RV HVAC systems.
Designed specifically for Coleman Mach heat pump rooftop units. Mounts to the existing ceiling cutout and duct plenum without adapters or modification.
The DirectFlow louver system uses a set of independently adjustable horizontal and vertical vanes. Horizontal vanes control the up/down discharge angle to keep airflow at head level or direct it toward the floor. Vertical vanes sweep the air left or right across the width of the coach. This lets each person in the RV dial in airflow direction without moving registers or adding aftermarket deflectors.
Because the assembly is heat-ready, the vane material and pivot hardware are rated for warm-air operation. Standard cooling-only assemblies can bind or warp when a heat pump pushes heated air through them repeatedly. The 8630A635 avoids that failure mode by using materials specified for the full operating range of Coleman Mach heat pump units.
If your Coleman Mach unit is a heat pump (not a standard air conditioner), always replace the ceiling assembly with a heat-ready ChillGrille assembly. Installing a cooling-only ceiling assembly on a heat pump rooftop unit can result in louver damage, restricted airflow, and voided warranty on the rooftop unit.
Coleman Mach ceiling assemblies are not interchangeable between ducted and non-ducted (direct discharge) configurations. The lateral ducted assembly routes air into the ceiling duct plenum and distributes it through multiple ceiling registers along the coach. A non-ducted assembly discharges air directly into the room through the single ceiling grille opening.
Check your existing ceiling assembly label or the rooftop unit model tag before ordering. The duct port location (lateral = side of the assembly box) is the easiest visual confirmation.
The 8630A635 ChillGrille is designed for Coleman Mach heat pump rooftop units, including units in the Mach 8 and Mach 10 heat pump families. Verify your rooftop unit model number ends in "HP" or includes "Heat Pump" in its description before purchasing. Standard AC-only Coleman Mach units use different ceiling assemblies.
This ceiling assembly replaces the interior ceiling grille and plenum box only -- the rooftop unit itself is not included. Ensure your ceiling cutout dimensions match before ordering. Mounting hardware and gaskets are typically included with the assembly; confirm contents at time of receipt before beginning installation.