Mitsubishi Electric MHK2 Remote Controller Kit

The Mitsubishi Electric MHK2 Remote Controller Kit is the standard for integrating advanced wireless control with M-Series, P-Series, and CITY MULTI indoor units. Utilizing RedLINK 3.0 wireless technology, this kit provides a stable, interference-free connection that is not compatible with older RedLINK 2.0 components. As a comprehensive ductless thermostat kit, it includes the MRCH2 controller, MIFH2 wireless receiver, and MRC2 cable, allowing for seamless communication via the CN105 connector on the indoor unit control board. Technicians can configure it for dual setpoints, auto-changeover, and humidity sensing, with a backlit touch display that simplifies HVAC system diagnostics by recording up to 28 indoor unit error codes. When paired with a Wireless Interface 2 (PAC-USWHS002-WF-2), this programmable wireless controller integrates directly with the Kumo Cloud app, enabling remote monitoring and scheduling while maintaining local override capabilities for the end-user.

• Universal Compatibility: Works with all current M-Series, P-Series, and CITY MULTI indoor units via the proprietary CN105 port.
• RedLINK 3.0 Integration: Features improved signal strength and reliability compared to previous generations, ensuring consistent system response.
• Advanced Diagnostics: Displays and records specific indoor unit error codes, allowing technicians to troubleshoot faults without direct board access.
• Flexible Scheduling: Supports 5-2, 5-1-1, or 7-day individual schedules, or can hand off schedule management entirely to the Kumo Cloud app.
• Dual Setpoint Control: Provides independent heating and cooling thresholds for precise comfort management in Auto mode.

Is the MHK2 compatible with existing RedLINK 2.0 accessories?
No, the MHK2 uses RedLINK 3.0 technology and will not communicate with MHK1, MOS1, or MCCH1 accessories. It requires a dedicated MIFH2 receiver (included in the kit).

Can I use the MHK2 and Kumo Cloud together?
Yes, but you must use the Wireless Interface 2 (PAC-USWHS002-WF-2). Ensure the Wireless Interface is fully commissioned in the Kumo Cloud app before plugging the MHK2 receiver into the second CN105 port on the interface.

Why does my screen say "WAIT"?
A "WAIT" message lasting more than 10 minutes typically indicates a communication fault between the indoor unit and the receiver. Verify the CN105 cable seating and ensure the indoor unit has been power-cycled after installation.

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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.