It shown in this video how to install the cheapest Smart Wifi Switch on Amazon to control an air conditioner.
Remote control your heater or cooler equiment only for 10€. It is the cheapest way to do it. After that you can control from everywhere your AC equiment. In this case is done for an Mitsubishi MSZ-DM35VA but checking the datasheet as it shown in the video you can do it in other A/C system.
My smart switch brand is Smart home and works with the smart life application. You can also use google home or alexa.
- The switch: Henmi Interruttore Wifi Smart Switch10A 2.4G Presa Intelligente wi-fi Controllo Remoto Wireless Compatibile con Android / Alexa / Amazon Eco / Eco Dot https://www.amazon.es/Interruttore-Switch10A-Intelligente-Controllo-Compatibile/dp/B07FPCK5KS
Optional: Mitsubishi heavy industries controller MAC-567IF
Step 1: Check the Datasheet
- Make sure your switch has a superior maximum current than the air conditioner.
- Check that your air conditioner has a auto restart function like the Mitsubishi
Step 2: Switch Off the Air Conditioner's Circuit Breaker
Switch off the air conditioner's circuit breaker
Step 3: Dismantle the Air Conditioner Until You Find the Input Power Cables
Dismantle the air conditioner until you find the input power cables.
One is marked like L (Live), N (Neutral)
Step 4: Install the Smart Switch
Find the best spot to install the smart switch between the circuit breaker and the air conditioner. Strip L and N cable. Connect them properly to the input (From circuit breaker) and output (To the air conditioner).
Step 5: Turn on the Circuit Breaker
Turn on the circuit breaker
Step 6: Install the Smart Life Application and Get Registered
Install the smart life application and get registered
Step 7: Connect to the Smart Switch
Connect to the smart switch
Choose other products, configure the wifi and press connect
Step 8: Control Your Air Conditioner From the Mobile
Now you can control the air conditioner form the mobile. When you left home you stop the air conditioner with the mobile phone when is set for the program you want. Before getting home you use your mobile phone to start the air conditioner from your work