ClimateControl Module for Mitsubishi Electric HVAC

Smart control. Better comfort. Fully Plug & Play.

Increase efficiency and comfort of your Mitsubishi Electric HVAC system and integrate it into your existing home automation setup like FHEM, Tasmota and Home Assistant or any other system that can work with HTTP GET or MQTT.

ClimateControl Module has been professionally developed, tested and proven with hundreds of HVAC setups already and does not require the user to do any soldering or tinkering with cables. It is fully Plug-and-Play!

Why Choose ClimateControl?

• Plug & Play Installation: No cables to modify, no soldering required. Avoid damage risks to your HVAC system.
• Stable Room Temperature: The wireless temperature sensor prevents false readings near the unit, reducing frequent on/off cycles and saving energy.
• Smart Home Integration: Supports Home Assistant, Tasmota, FHEM, Loxone, OpenHAB, and more via MQTT or HTTP GET.
• Protect Your Equipment: Safely control your HVAC with a professionally designed module.

Features & Functionality

Wireless Temperature Sensor:

• Many HVAC systems suffer from constant temperature fluctuations because the sensor inside the indoor unit heats up before the room heats up, causing the unit to shut down prematurely.
• This is especially noticeable when the room is cold in the morning and you want to heat it up. The sensor may incorrectly think the temperature is reached, even though the room remains 3 degrees Celsius below the setpoint.
• The same happens at low fan speeds, where warm air remains close to the unit, resulting in incorrect temperature readings and frequent on/off cycles.
• The ClimateControl’s wireless sensor can be placed anywhere in the room for accurate readings.
• This significantly improves temperature stability, adds comfort, reduces equipment wear, and saves energy.

MelCloud & MHK1/MHK2 Thermostats:

The module includes an accessory CN105 port allowing you to connect an existing MelCloud Wi-Fi adapter or MHK1/MHK2 wall thermostat in parallel. You can continue using these devices while enjoying ClimateControl’s full features.

Frost Protection:

Helps keep your room above a minimum temperature during holidays. ClimateControl activates the indoor unit if the temperature drops below a set threshold, then switches it off once the target temperature is reached.

Temperature Limit:

Prevents energy waste or discomfort from extreme temperature settings. You can define minimum and maximum limits (for both heating and cooling!), overriding changes from the infrared remote.

Installation:

• Connects to the CN105 port on your indoor unit.
• One module is required per indoor unit.
• Works standalone (wireless sensor only) or integrated into your smart home system.

Home Automation Integration

Home Assistant: Fully supports MQTT auto-discovery for seamless integration.

Other Supported Systems:

• Loxone
• HACS
• Tasmota
• OpenHAB
• FHEM
• Any system supporting MQTT or HTTP GET

Technical Details

(Click to expand for more details)

Show MQTT Topics

• climacontrol/HVAC_XXXXXX/sensor/external/temperature/set
• climacontrol/HVAC_XXXXXX/heatpump/mode/set
• climacontrol/HVAC_XXXXXX/heatpump/fan/set
• climacontrol/HVAC_XXXXXX/heatpump/vane/set
• climacontrol/HVAC_XXXXXX/heatpump/settemperature/set
• climacontrol/HVAC_XXXXXX/heatpump/widevane/set
• climacontrol/HVAC_XXXXXX/heatpump/power/set

Show HTTP GET Commands

• Power: /control?cmd=heatpump&power=ON (or 1) → Turn unit ON/OFF
• Mode: /control?cmd=heatpump&mode=auto (cool, dry, fan, auto, heat)
• Temperature: /control?cmd=heatpump&set_temperature=21
• Fan: /control?cmd=heatpump&fan=5
• Vane: /control?cmd=heatpump&vane=2 (vertical direction)
• Wide vane: /control?cmd=heatpump&widevane=1 (horizontal direction)
• Remote temperature: /control?cmd=heatpump&remote_temperature=21 Alternative to the wireless sensor. Update this at least every 15 seconds.
• Restart module: /control?cmd=restart

Show Supported Models

ClimateControl works with most Mitsubishi Electric indoor units equipped with a CN105 port, including ducted, wall-mount, and floor-mount units. (In)complete list of confirmed supported models:

• MPEZS-60VJA
• MFZ-KA
• MFZ-KJ
• MLZ-KA
• MLZ-KP
• MLS-KP
• MSZ-AP
• MSZ-AY
• MSZ-DM
• MSZ-EF
• MSZ-FD
• MSZ-FE
• MSZ-FH
• MSZ-FS
• MSZ-GA
• MSZ-GB
• MSZ-GC
• MSZ-GE
• MSZ-GL
• MSZ-GS
• MSZ-GV
• MSZ-HR
• MSZ-LN
• MSZ-RW
• MSXY-FP
• MSXY-FN*VE
• MXZ-8C48NAHZ
• NAXWST18A112AA
• PEAD-M
• PEAD-RP100
• PEA-RP140EA2
• PKA-A
• PKFY-P06NLMU-E-TH
• PVA-A
• PLA-A18BA
• SEZ-KD
• SVZ-KP*NA

Check your indoor unit’s installation manual for the CN105 port to confirm compatibility.

Orders are usually shipped once a week. Delivery depends on location.