Before installation using "Small Cooling Fan", must be carefully view the use of electrical equipment voltage (rated voltage) is consistent with the supply voltage, such as inconsistent damage electrical equipment, such as a fire or even cause greater losses. For installation must be equipped with suitable transformer. Residential construction of the indoor power for single-phase AC 220V, a power wire for the "phase" (also known as "FireWire spoon, a" zero line ", the river has a grounding line of protection."Small Cooling Fan"of Power is often provided by the chamber outlet, "Small Cooling Fan" outlet socket should be two holes, wells equipped with two-pin plug. When installing electrical equipment, switch to be installed in the "line of fire", otherwise disconnect switch Electrical equipment Jiang charged.