Outdoor Main Circuit Board for Alegria Platinum CM5-54-5Z

ComfortStar 17122300001572 – Outdoor Main Control Board for Alegria Platinum CM5-54-5Z

The ComfortStar 17122300001572 is the designated main control board for the outdoor condensing unit of the Alegria Platinum CM5-54-5Z multi-zone ductless system. This PCB manages system operation across all external components, including the compressor, condenser fan, and communication with indoor units. It coordinates startup logic, inverter modulation, and system diagnostics in real time.

Designed for use in ComfortStar’s inverter-driven outdoor platforms, the board is essential for maintaining correct refrigerant flow control and staging between multiple indoor zones. It provides relay logic for operation based on 24V signal input and transmits data to/from corresponding indoor control modules.

Primary Functions

• Compressor & Fan Control: Manages compressor operation and outdoor fan speed based on demand
• System Communication: Interfaces with up to five indoor zones for synchronized modulation
• Power & Surge Protection: Includes built-in protection features to prevent component failure from voltage spikes
• Diagnostic Capability: Supports onboard fault indication for service and troubleshooting

Technical Specifications

• Manufacturer Part Number: 17122300001572
• Application: Outdoor unit main PCB
• System Compatibility: Alegria Platinum CM5-54-5Z
• Control Voltage: 24V input control logic
• Mounting: Pre-configured standoff layout for internal panel installation

Installation Guidelines

Board replacement requires disconnection of power and verification of correct terminal assignment. Wiring harnesses should be inspected for continuity and compatibility. Due to the complexity of multi-zone inverter systems, installation should be performed by a licensed HVAC technician to ensure compliance with manufacturer requirements and system safety standards.

Applications

• Field replacement for main PCB failure in CM5-54-5Z systems
• Restoration of inverter control and multi-zone communication logic
• System diagnostics and performance stabilization