Choosing your number and type of valves:
Choosing the number and type of valves you want in your home depends on the square footage of the home, along with your preference on where to plug into your electric supply.
*You should approximately have 1 valve for every 675 sq. ft. in your home.*
The electric central vacuum valve has low voltage and 110v wired straight to the valve. The low voltage is used to communicate with the main unit, while the 110v is used to supply electricity to the powerhead. These valves are more convenient due to the lack of need for a power outlet. Most universal hoses that are wired for direct-connect capability can use this type of valve.