Indoor Control Circuit Board for Alegria Platinum CPA-12

ComfortStar C70190015 Indoor Control Board – OEM Logic Module for Alegria Platinum CPA-12

The ComfortStar C70190015 indoor control circuit board is a factory-specified replacement for the Alegria Platinum CPA-12 ductless mini-split indoor unit. This board governs key functions including indoor fan control, operational mode switching, temperature sensor input processing, and communication with the outdoor inverter board.

Engineered for direct-fit installation, the C70190015 board maintains system integrity and ensures synchronized communication across components. It is designed to interface with display modules, thermistors, and motor outputs with no need for custom wiring changes.

Functional Overview

• Application: ComfortStar Alegria Platinum CPA-12 indoor air handler
• Board Type: Low-voltage logic control board with integrated relays
• Control Inputs: Room and coil thermistors, mode command signals
• Outputs: Fan motor control, swing motor interface, display panel
• Communication: Links with outdoor unit via system bus

Technical Specifications

• Part Number: C70190015
• Voltage Input: 24V AC signal
• System Compatibility: Alegria Platinum CPA-12 indoor units
• Mounting: Pre-configured chassis layout with plug-in terminal points
• Standards: Manufactured to meet HVAC safety and performance criteria

Installation Guidance

This replacement board is intended for use by HVAC professionals. Ensure all power is disconnected before service. Reference original unit schematics to confirm wire placement and verify all component inputs and outputs after installation. Confirm correct thermistor readings and communication response prior to reassembly.

• Tools Required: Multimeter, Phillips driver, anti-static strap
• Installation Time: Approx. 30–60 minutes with proper system access

Use Cases and Field Applications

• Direct replacement in ComfortStar CPA-12 indoor units experiencing logic board failure
• Suitable for service calls addressing indoor unit non-responsiveness or display faults
• OEM-compatible part for preventive or corrective maintenance cycles

Key Performance Attributes

• Direct-Fit Compatibility – Matched terminal layout for plug-and-play replacement
• Integrated Diagnostics – LED indicators assist in service verification
• Stable Control Logic – Maintains consistent fan, mode, and sensor operations
• Compact PCB Layout – Optimized for confined indoor handler space

Summary

The ComfortStar C70190015 control board is the designated replacement module for CPA-12 series indoor handlers. Designed to restore original system performance, it supports critical control logic and communication functions. Ideal for professional service contractors handling diagnostics, replacements, or warranty board swaps.