Hi, I'm doing the wiring in my house (70m2) and I want to make the installation of 1 under air conditioner with heat pump in lounge and 3 storage static (1 per habitcion). I really have said that 4 mm2 porter cable air compressors + ground for each device, and put them each on separate lines and direct to the table is sufficient porter cable air compressors. Is this correct?. I mention, for the installation of air conditioning you have to put in an automatic box 16A and take up the porter cable air compressors outlet of 2 porter cable air compressors. 5 m / m section + earth. For the batteries with the porter cable air compressors of 4 m / m is sufficient, you put in an automatic box 20A per unit and take out the installation for each outlet porter cable air compressors. As for the red wire, you do not put it to each store, this porter cable air compressors is used to take you from the meter room to the contactor that goes in the box and is 1. 5 m / m section, provided that hire fee night porter cable air compressors. Hi I want to install an air conditioning temprizador for us this more than 1 hour running. I went to an electrical supply shop and they recommended the model OMRON timer H3CR-A, advisable to put a contactor porter cable air compressors. Him.