Mitsubishi PAC-US445CN-1 - Thermostat Adapter Interface, Allows Connect 3rd Party Controls, Updated Version of PAC-US444CN-1

The PAC-US445CN-1 Thermostat Interface enables seamless integration of third-party thermostats with Mitsubishi Electric indoor units, providing flexible control over fan speed (Auto, Medium, High, Custom Auto) and HVAC modes. Designed for both residential and commercial settings, this interface works with popular thermostats like Nest, Honeywell, Lyric, and INNCOM, making it ideal for users seeking versatility in their HVAC systems. Compatible with MHK1/MHK2-controlled units, the PAC-US445CN-1 supports conventional systems (not for heat pumps) and works with R, C, G, W1, Y1 terminals as minimum requirements (preferred setup: R, C, G, W1, W2, Y1, Y2). Its single-unit connection ensures reliable operation for each indoor unit, even in MXZ multi-zone setups. Additional features include compatibility with accessories like the PAC-SE41TS Remote Temperature Sensor and MAC-331F (12 VDC power required), though M-Net and MA controls are not supported. The PAC-US445CN-1 is compatible with Mitsubishi CITY-MULTI (post-April 2012), M-Series, and P-Series indoor units. For custom, user-friendly HVAC solutions, this thermostat interface delivers top performance, helping you achieve superior indoor climate control.

• Control Mitsubishi Electric Indoor Units with Third-Party Thermostat – Easily integrates third-party thermostats with Mitsubishi indoor units for seamless HVAC control.
• Compatible Thermostats – Works with popular brands like Ecobee, Honeywel, Nest, Lyric, and INNCOM, including fan speed control options.
• Supports Multiple Modes – Operates in Cool, Heat, Fan, and Off modes, with Auto mode for enhanced efficiency.
• Fan Speed Control – Provides High, Medium, and Low input terminals to adjust fan speed to your comfort level.
• Single Interface per Indoor Unit – Each thermostat interface is designed to control one indoor unit, ensuring dedicated operation.
• Works with PAA intelli-HEAT Units – Fully compatible with the PAA intelli-HEAT indoor unit, including a PAA wire harness for easy connection.
• Energy-Saving Thermo-OFF Delay – Keeps the unit in Heat or Cool mode for 2 hours after W or Y deactivates, or switches to fan mode when the setpoint is met
• Customizable Fan Speed Settings – Choose between Auto, Custom Auto, Medium, and High fan speeds for optimal comfort.
• Two-Stage Thermostat Operation – Adjusts capacity based on room needs with W1/Y1 for automatic adjustment and W2/Y2 for full capacity.
• Reliable Features for Continuous Comfort – Includes CN24 backup heat, auto recovery after power failure, and emergency/test mode settings for PAA intelli-HEAT.