Mitsubishi Electric BACnet and Modbus Interface - PAC-US444CN-1 Thermostat Adapter

The PAC-US444CN-1 thermostat interface allows for the use of a third-party thermostat to control Mitsubishi Electric indoor units. It provides 3 input terminals for fan speed control: Auto, Medium, High, and custom auto. Through its CN105 connector, the Thermostat Interface enables HVAC thermostats and input/output controllers to control residential or commercial indoor units. Any system that can be controlled by the MHK1 controller model can now be controlled by a third-party HVAC thermostat or input/output controller. The interface is compatible with conventional systems, excluding heat pump control, and requires a minimum of R, C, G, W1, Y1 terminals. Preferred terminals include R, C, G, W1, W2, Y1, Y2. Line voltage thermostats are not compatible. The PAC-US444CN-1 is compatible with almost all current indoor units offered by Mitsubishi Electric US. Only one third-party thermostat can connect to one thermostat interface to control a single indoor unit, even for an MXZ multi-zone system. It is compatible with the PAC-SE41TS Remote Temperature Sensor & MAC-331F, but M-Net & MA Control are not supported, and a 12 VDC power supply is required for MAC-33IF. Note: the PAC-US444CN-1 is compatible with Mitsubishi CITY-MULTI (Models after April 2012), M-Series, and P-Series Indoor Units. It has been tested with Nest, Honeywell, Lyric, and INNCOM thermostats with fan speed control. Supported thermostats include Nest, Honeywell, Lyric, and INNCOM with fan speed control. Only one Thermostat Interface is required per indoor unit. It provides 3 input terminals to control fan speed: High, Medium, and Low, enabling the use of Mitsubishi Electric Indoor units to enjoy third-party thermostat features and benefits. It is compatible with Mitsubishi CITY-MULTI (after April 2012), P-Series, and M-Series Indoor Units.

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