Wuxi Gree central air-conditioning Features 1. Gree central air-conditioning fan is made of aluminum, forward curved centrifugal wind wheel. The wind wheel housing based on the Archimedes linear, double inlet, galvanized steel motor is three-speed packet the fixed grouping capacitor motor, sealed ball bearings and elastomeric bearing, quiet and smooth running. Insulation Class E-Class. Gree central air-conditioning cooling and heating coils, heat exchange coil is made of copper tube aluminum fin. 3/8 "diameter seamless copper tube machinery up connected to the aluminum fins. The set head 3/4" internal thread by hexagonal brass mold the system to reduce the water pressure drop, easy to take over. All the coils are in the factory test pressure in the the 28bar pressure test pressure of at least 1 minute, in order to check for leaks. Coil working pressure of 15bar. Part One is equipped with a manual vent valve in the plumbing. Gree central air-conditioning condensate water tray from a single piece of cold rolled steel stamping, no welds, so as to prevent any leak caused by the weld. Condensate plate by punching after molding, after dusting surface treatment, and then in an external paste 6mm thick flame-retardant polyurethane insulation material. Condensate water tray 5 ° tilt chassis designed to facilitate drainage. Condensate water pipe in the drain pan at the lowest condensate water pipe fittings 3/4 "male thread. Standard unit distance from the inlet and outlet pipe to the top of the drain pan is 70mm, the water dish lengthened unit can extend to 170mm. 4 Gree air conditioning air inlet and outlet vent is an overall flange can be directly connected with the duct flange side width of 20mm. return air box (Optional) imports are also similar. flange edge width of 20mm. filter (Optional) can be directly mounted on the return air box. Gree central air-conditioning fan coil provides a complete unit internal wiring, terminals located in a metal junction box, wiring group A total of six terminals, marked with a digital 1-2-3-4-5-6, which has four terminals for wiring connected to a three-speed switch - "midline, high-speed, medium-speed, low-speed", the other two terminal reserved for other uses.