The Daikin-McQuay 668105601-3.1 is an OEM replacement Control Board designed for Daikin-McQuay commercial HVAC equipment running the MT III (MicroTech III) control platform at firmware/hardware Version 3.1. This board serves as the central processing and control hub for compatible Daikin-McQuay units, ensuring accurate system management, reliable communication between components, and consistent equipment performance.
Product Overview
The MT III (MicroTech III) Control Board is engineered to maintain the precise operational logic required by Daikin-McQuay commercial systems. Replacing a failed or outdated control board with this genuine OEM part restores full system functionality and helps avoid costly downtime.
Key Features
- OEM Daikin-McQuay replacement control board
- Designed for MicroTech III (MT III) control platform
- Version 3.1 hardware/firmware designation
- Direct drop-in replacement for compatible Daikin-McQuay commercial HVAC units
- Supports accurate system monitoring, sequencing, and fault diagnostics
- Engineered for reliable long-term performance in commercial applications
Application
This control board is intended for use in Daikin-McQuay commercial HVAC systems equipped with the MicroTech III control architecture. Always verify compatibility with your specific unit model and serial number before installation.
Installation Notes
- Installation should be performed by a qualified HVAC technician
- Refer to the Daikin-McQuay equipment service manual for wiring diagrams and mounting instructions
- Ensure power is fully disconnected before replacing the control board
