ComfortStar 17122000016378 – IMP Driver Board for Alegria Platinum CM2-18-2Z
The ComfortStar 17122000016378 is the designated IMP driver board used in the indoor unit of the Alegria Platinum CM2-18-2Z ductless mini-split system. This inverter module PCB regulates signal conversion and drive control between the main indoor control board and the system’s variable-speed compressor and fan motor components.
Engineered for use in electronically commutated motor (ECM) systems, the board faci
ComfortStar 17122000016378 – IMP Driver Board for Alegria Platinum CM2-18-2Z
The ComfortStar 17122000016378 is the designated IMP driver board used in the indoor unit of the Alegria Platinum CM2-18-2Z ductless mini-split system. This inverter module PCB regulates signal conversion and drive control between the main indoor control board and the system’s variable-speed compressor and fan motor components.
Engineered for use in electronically commutated motor (ECM) systems, the board facilitates high-efficiency modulation and error reporting across operating modes. It integrates with existing thermistor, communication, and actuator circuits within the ComfortStar Alegria indoor chassis and is critical for stable inverter performance.
Key Functions
Power Conversion: Supports DC drive output from 24V control input
Compressor/Fan Driver: Interfaces with indoor fan and motor modules
Operational Support: Enables soft-start and modulation logic from main control PCB
Error Reporting: Includes diagnostic feedback via system fault codes
Specifications
Manufacturer Part Number: 17122000016378
Application: Indoor IMP control module
Voltage Input: 24V AC
Model Compatibility: ComfortStar Alegria Platinum CM2-18-2Z
Mounting Configuration: Internal PCB standoffs and wire terminal interface
Installation Considerations
Replacement of this module should be performed by licensed HVAC personnel. Proper handling procedures for electrostatic-sensitive components are essential. Installation involves multi-pin connector placement, low-voltage wiring, and verification of board compatibility. Always disconnect system power prior to replacement and verify thermistor and communication line integrity before restarting.
Applications
ECM fan and driver control for CM2-18-2Z indoor units
Diagnostic replacement during board-level system service
System restoration after control board failure or surge event
