IPM Driver Board for Alegria Gold CPG030CD(O) and CPG030CD(O)

ComfortStar C37990112 IPM Driver Board – OEM Component for Inverter HVAC Systems

The ComfortStar C37990112 is an IPM (Intelligent Power Module) driver board designed for use in inverter-driven HVAC systems. This board provides control and power regulation to the compressor motor, enabling precise modulation based on demand conditions. It plays a critical role in ensuring system stability, efficiency, and protection against electrical faults.

Built for integration into select ComfortStar mini-split and multi-zone systems, the C37990112 board is an OEM-matched part for specific inverter outdoor units. It supports variable-speed operation and helps extend equipment lifespan by maintaining proper compressor performance under varying loads.

Key Functional Features

• Inverter Control: Regulates compressor speed through pulse-width modulation for improved temperature control and energy savings.
• Thermal and Electrical Protection: Equipped with overcurrent, overvoltage, and overtemperature safeguards to protect the system.
• Integrated Heat Sink: Enhances thermal dissipation to maintain safe board temperatures during high-load conditions.
• 24V Signal Compatibility: Interfaces with low-voltage control signals and system sensors.
• Factory-Calibrated: Pre-tuned for use with designated ComfortStar system models.

Technical Specifications

• Part Number: C37990112
• System Type: Inverter outdoor unit driver board
• Input Voltage: 24V signal control / high-voltage power input (application-specific)
• Mounting: Panel-mounted with multi-pin harness connections
• Application: Alegria Platinum series and select ComfortStar inverter units

Installation Notes

This board should only be installed by licensed HVAC technicians familiar with inverter technology and system-specific wiring. Always verify compatibility with the model and serial number before installation. Ensure the power is completely disconnected and all capacitors safely discharged before removing or replacing the board.

Post-installation, perform system startup checks and confirm compressor modulation behavior using onboard diagnostics or manufacturer testing protocols.

Best Practices for Contractors

• Match driver board part numbers to OEM specification charts.
• Inspect surrounding electrical components and wiring before replacement.
• Utilize proper static and surge protection measures during handling.
• Use a multimeter to verify input and output voltages after installation.

Field Application

The C37990112 board is intended for use in repair or replacement applications where the original IPM board has failed or degraded. It restores modulation control to inverter systems and supports full operation of the outdoor unit under variable load conditions.

To maintain warranty compliance and ensure reliable operation, always source matching ComfortStar OEM boards for system repairs.