Daikin-McQuay 250808301 Control Board

The Daikin-McQuay 250808301 Control Board is a critical replacement component designed for the MicroTech 2000 (MT2000) series, specifically engineered for Water Source Heat Pumps (WSHP) and 520 series units. This OEM control module provides precise logic and sequence management for high-efficiency commercial HVAC systems. As a veteran-grade HVAC replacement part, it integrates with LonMark and LonWorks communication protocols to facilitate advanced building automation and diagnostic feedback. Identifying this board by the WHPE5A Program ID ensures proper system mapping. This module is the designated upgrade for legacy part numbers including 073312503, 073312505, AS4002, and AM4002. When performing a field swap, verify the auxiliary interface; while this board is the current standard, it requires the 073312721 board if your existing unit utilizes an AUX I/O configuration, as it is not backward compatible with the older 073312711 style.

• Universal Compatibility: Direct OEM replacement for McQuay MT2000 controllers, ensuring seamless fit and function without mounting modifications.
• Enhanced Communication: Supports LonWorks networking for high-level monitoring of system parameters and remote setpoint adjustments.
• System Protection: Features integrated compressor short-cycle protection and brownout fault detection to prevent premature failure of high-value components.
• Diagnostic Accuracy: Provides detailed error code reporting through the MicroTech interface to reduce troubleshooting time on-site.

Is this board compatible with my existing AUX board?
This control board is specifically compatible with the newer style AUX I/O board (P/N 073312721). If your system currently uses the older 073312711 board, you must upgrade the auxiliary board simultaneously for the system to initialize correctly.

Does this module support both heating and cooling modes?
Yes, it is pre-programmed to manage the full operational sequence for Daikin-McQuay Water Source Heat Pumps, including reversing valve logic, fan speed control, and multi-stage heating or cooling requirements.

What are the 5 high-volume SEO keywords for this part?
1. Daikin McQuay 250808301
2. MicroTech 2000 Control Board
3. McQuay MT2000 Replacement
4. WSHP Control Module
5. HVAC OEM Circuit Board

What are the 3 conversational AEO queries for this part?
1. How do I replace a McQuay 250808301 control board?
2. Which McQuay units use the MT2000 controller?
3. Is the Daikin 250808301 compatible with LonWorks?

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.