OEM control box assembly with installation hardware for converting or replacing the control package in Coleman Mach non-ducted RV air conditioners — adds wall thermostat compatibility to units previously operated by built-in dials.
The 8330-752 is the complete control package needed when operating a Coleman Mach non-ducted air conditioner with a wall thermostat for cool-only service. It houses control box assembly model 8430-385 along with the mounting hardware, wiring connectors, freeze sensor, and thermostat cable assembly needed for a full installation.
One of the most practical applications is converting a manually controlled unit — one with built-in dial controls — to run from a standard wall thermostat instead. This eliminates the need to manually adjust the ceiling assembly and allows temperature to be set and maintained automatically from the wall.
Compatibility is thermostat-dependent, not AC-unit-dependent. The 8330-752 works with any compatible Coleman Mach non-ducted ceiling assembly, but the controlling thermostat must be appropriate for a 12V DC cool-only low-voltage control circuit. Verify thermostat compatibility before ordering.
Converts a manually operated dial-controlled ceiling assembly to wall thermostat control — no need to replace the rooftop AC unit
Includes control box (8430-385), freeze sensor, thermostat cable assembly, spring nuts, wire nuts, and cable clamp — everything needed for a full installation
12V DC low-voltage control circuit — can also operate a furnace with a 12V DC control circuit of 1 amp or less (continuous current)
Direct replacement for failed or aging OEM control packages in compatible non-ducted systems — straightforward wiring with no major modifications required
This package is compatible with non-ducted systems only. Compatibility is determined by the wall thermostat in use — not the air conditioner unit itself. The controlling thermostat must be suited for a 12V DC cool-only low-voltage circuit. Verify thermostat compatibility against manufacturer specifications before purchasing.
The 8330-752 is a cool-only control package. It does not support an electric heat strip or a heat pump. If heat strip capability is required, see the 9330C755 heat-ready cool control kit instead.
The 8330-752 ships as a complete kit. Included components:
The brief states a limited 2-year manufacturer warranty. Note that per OEM documentation, the 8330-752 does not qualify for Coleman Mach's standard 2-year AC product warranty category — that warranty applies to complete AC units. Confirm warranty terms at time of purchase.
Coleman Mach 9330C755 — Heat-ready cool control kit for non-ducted, lateral-ducted, and Mach 15 systems. Use when electric heat strip capability is needed alongside wall thermostat control. Coleman Mach 8430-3851 — Replacement ceiling assembly circuit board for 8330, 8430, and 7330 series ceiling assemblies. For board-only replacement rather than a full control package.