The compressor bearing was tilt pad self-equalizing bearing while the motor had a cylindrical sleeve bearing. ". In terms of motor rotation, if the motor is TEFC then there will be a fan an the rear shaft. Thanks. Fits Models: S550, S570, S590, S595, S630, S650, T550, T590, T595, T630, T650 with 4/ groove pulley. If you wish to be updated when new comments are posted, add: www.about-air-compressors.com/feed/ to your RSS reader. Does it matter which direction the compressor is rotating? Friend, the motor shaft is turning a crankshaft that converts rotary motion into linear motion of the piston inside the cylinder. by: Anonymous Although compressors will produce air in either direction of rotation another factor is that on some compressors there is a dip tube on the bottom of the connecting rod.Some are straight and rotation does not matter except for air flow but some do have a pocket and the rotation has to be in the correct direction so that the pocket picks up the oil to “splash” lubricate the pump internally. A tech just replaced the condenser fan motor and I asked about the direction of the air flow through the fan. Oil Qty (cc): 100. In my case, the compressor rotates CC. Re: Compressor Direction Gauge Lineto First Groove: 20.85. air conditioning unit. We'd welcome it here! That fan must rotate so that it directs air over the motor to cool it. This electric motor capacitor article series explains the selection, installation, capacitor to get an air conditioner motor, fan motor, or other electric motor running. ________________________. I have looked for the directional arrow on the compressore but found none. etc., sure rotation matters. When the scroll compressor shuts off the scrolls may revolve in a backward directiuon for a second or less as the pressure equalize through the sctroll sets, if the compressor is energized during this backward movement of the scroll and rotor assembly the single phase compressor may not have enough toeque to overcome this rotation and may continue to run backward. Regardless of which direction of rotation the crank is turned, it will still generate the same reciprocating movement of the piston in the cylinder. ... On the elevator pump if it is the old style impeller type I would say look for same bearing direction wear problem to be an issue maybe. My older speedaire is a little noisier since i put heavier gauge wires to it.. This will cause the magnetic field to change directions, and the motor will follow. So, if it were my air compressor, and if, for some reason, I had a motor with a shaft that was rotating in the opposite direction, I would not worry about changing the motor rotation. There are several different types of compressors, but they all perform the same basic function, which is to : 1. I have a 3 phase Copeland scroll compressor in a portable 3 ton (?) ________________________________________. Gear box was double helical. Compressor rotation reversed, damages?? When the cylinder drops, one valve is shut and the other opens to let in air, and when the cylinder rises, the open valve is pushed shut by air flow and / or the steel returning to rest, and the other opened by the air being compressed and blown into the tank. How to change rotation on a dayton 120 volt AC motor. Thanks. SD505 BODY MOUNTING. _________________________________________. All of a sudden, we hear this pop from the compressor. They had just replaced the motor. I don’t think, personally, that the rotation of the pump flywheel on a smaller reciprocating air compressor makes any difference.eval(ez_write_tag([[300,250],'about_air_compressors_com-medrectangle-3','ezslot_0',139,'0','0'])); Ultimately, what does the work is the piston moving up and down, and whether the flywheel and the crank shaft are turning one way or the other, the piston will still move up and down. Thus, there is a proper orientation of the lines 24, 30 and 36 which is achieved when the connections 26 and 28 and 32 and 34 are properly made. Normally if a pump is designed to rotate a certain direction the pulley will have a directional arrow on it in some form. In rotary and scroll compressors, multiple compression chambers can be used. I might have crossed wired it and it might be running backwards. NEW OEM Sanden AC Compressor for your John Deere Hitachi Volvo Kobelco Heavy Equipment Specs: Compressor Family: SD7H15 Style: HD Mount Type: Ear 8 Long Ear ID: 83.3 Refrigerant: R134A Displacement: 155.00 Rotation Direction: CW Oil Qty (cc): 270 Cylinder Head: JD Port Angle: V The Porter Cable compressor tank is full, but I can’t get air to come out? by: George on my Speedaire, the direction of rotation is stamped on the name plate. dedwards (Doug Edwards) July 7, 2009, 9:04pm #6 A fan blade is designed to run in one direction, otherwise it only moves about half of the air it should be. Refrigerant: R134A. It is desirable for compressor 40 to rotate in one direction, and not in the reverse direction. Rotation Direction: CW. In the 379 If there no other actions being driven by the crank except the piston reciprocating, then I don’t think the direction of rotation matters, except where the pump sheave has fan blades build it. by: Anonymous. More than 16 years on line helping folks with their air compressor problems! Reverse rotation happened since the commissioning of the machines. The outside fan is turning in the wrong Outdoor unit fan rotation going counter clockwise - DoItYourself.com Community Forums In a case study, steam turbine barring wheel was damaged in a wet gas compressor unit at a coker unit of Bathinda Oil Refinery of HPCL- … It is desirable for compressor 40 to rotate in one direction, and not in the reverse direction. by: Anonymous, Oh YES it does matter which direction the flywheel turns.. Have you ever really worked on anything that involves valves, cams, pistons , cranks,and correct timing /// etc.?? Sorry to give you the bad news. , Direction of rotation of compressor pump by: Chris I would say that the compressor would function equally well turning in either direction, but the cooling fan which is usually cast into the flywheel is directional. It worked great at our last shop but I am not confident that the rotation direction of the 3 phase power in my new shop is the same. Air Conditioning and Cooling Systems - Outdoor unit fan rotation going counter clockwise - We had a Airtemp 4 ton single phase ac unit installed today. Similar to an engine, most flywheels on compressors turn counterclockwise when viewing them, and the cooling fan is designed to blow air across the compressor when spun counterclockwise. I need to know the direction of rotation (CW or CCW) of the Zexel DKV14G AC Compressor on the 1999-2004 Isuzu Rodeo/V6. I would say that the compressor would function equally well turning in either direction, but the cooling fan which is usually cast into the flywheel is directional. I've tried contacting the manufacturer but have had no response yet. He said that the flow was toward the compressor (or the left viewed from the back of the refrig). eval(ez_write_tag([[468,60],'about_air_compressors_com-banner-1','ezslot_3',147,'0','0'])); Similar to an engine, most flywheels on compressors turn counterclockwise when viewing them, and the cooling fan is designed to blow air across the compressor when spun counterclockwise. Developed to meet specific demands of the automotive and mobile HVAC industries, the Fixed Displacement Wobble-Plate Compressor is engineered for counter-clockwise operation. Yes, where there are ancillary functions dependent on the rotation of the crank… water pumps, oil pumps, fuel pumps, ignition sequences etc. If the compressor has such a sheave, then of course, the rotation is important to ensure that air passes over the pump helping to cool it. Direction Of Compressor Pump Sheave Rotation. Original Sanden 4822 direct mount compressor complete with 119MM 12 volt clutch, 8/ groove pulley, 2 wire female Packard connector, and male threaded fittings. In order to achieve this, you can swap the connections on either end of the winding. That coupled with the dynamics of a condenser unit design, the ambient air is going to balloon or mushroom inside the unit rather than go out through the coils effectively.