Project: Ventilation system, motor, co2 measurement etc.

[U5tabil 2]

I want to install a ventilation motor that will when the Netatmo controller shows a high Co2 measurment do a task. And i have this motor with 2 speeds. low and fast. The idea is that when its by example 1000ppm the engine start and goes on low speed til it reaches a comfortable measurement. If it rises to 1500ppm it will go to high speed to speed up the process.

I need some input on what would be best to do here, also how i should do it with wiring. Im not an expert on this, i don't know LUA coding so i will be doing it with "boxes" unless someone can make a code, and im quite basic when it comes to how to connect it with wiring.

Idea 1

Is that i get this fan to blow in air from outside over the aircondition unit, and that takes the fresh air heat it and send it out in the room, bad air (high co2) would just be pushed out trough open vents over windows etc.

Idea 2

I mount the unit in the oposite side of the room making it to suck the air out of the room when there is high co2 measurement.

What is the most preffered here?

Below i have some pictures of the motor and diagrams. What controller unit should i use to get this working at all?

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[Dalle1985 16]

Just get a fibaro 2x1,5 kW relay and connect them to each of the terminals. Then you create a scene which ensures that if 1 is on, then 2 must be off to avoid any risk of creating a short circuit (if at all possible)

[ Added: 2014-12-30, 15:55 ]

Ohh... And a good principle if you only have 1 blower is to use it as exhaust - less draft and lower noise (there will always be more noise where air comes out).

[U5tabil 2]

Just get a fibaro 2x1,5 kW relay and connect them to each of the terminals. Then you create a scene which ensures that if 1 is on, then 2 must be off to avoid any risk of creating a short circuit (if at all possible)

[ Added: 2014-12-30, 15:55 ]

Ohh... And a good principle if you only have 1 blower is to use it as exhaust - less draft and lower noise (there will always be more noise where air comes out).

Thank you for your answer. I actually do have an 2x1,5kw relay from fibaro at home that im not using. thats good then i dont need to buy a new one

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draft or noise im not so worried about if its going in. I forgot to tell the aircondition unit is in the hallway, and that makes sound itself too, and air would come in where that is. And the aircondition unit makes more noise than this blower that will be inside the ceiling.

But you do make sense

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