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Question:

AC Fan Motor connection?

I am replacing a fan motor in my AC unit. I have few questions. First of all, the wire that comes with motor is not in sufficient length to connect to the connector, How can I extend those wires? Secondly, The fan motor suggests to use only 340 V two prong small condenser, but the original condenser have 3 prong connection. So, Do I need to connect the small one along with the original one? Also, previous motor has only 3 wires *black, purple and brown) but the new motor has 4 wires (brown, brown-white, yellow and black). So, I am confused. Any help would be greatly appreciated.

Answer:

In a vehicle the fan motor runs from the battery whilst the A/C compressor runs from the engine. The A/C fan motor runs each and every time the automobile's fan change is located in between the ON positions (and the secret's 'ON', etc.). many times the person would desire to decide on the Snow Flake image on the dashboard to instruct on the A/C. besides the undeniable fact that, till the engine is working the A/C compressor isn't doing the paintings needed to make chilly air (different than the A/C fairly runs additionally whilst interior the defrost place on the that different fan administration knob). in case you decide on the snowflake image and the fan is ON and the engine is working and the ignition key's on and you at the instant are not interior the defrost place and you do not have some style of fault interior the equipment then you certainly would desire to get chilly air out of the vents given which you furthermore would have the temperature slider set to grant chilly air too.
Get someone that knows what they're doing.
two brown wires should go to the new capacitor (has to match what motor calls for) that you should have brought with the motor. Yellow and b lack are power wires, so just make sure they get 220V when unit turns on, top of cont actor or if heat pump one black wire goes to defrost board other to other leg of 220. Remove any extra wires. Make sure to take any drain plugs on the bottom of motor if down mounted, so can drain water. After installation check amp draw to make sure motor fits application. You should have diagram on motor and cover of unit to help you. If reversible motor make sure fan turns against the riviots in the blades
I know exactly the motor you have with the brown/black/purple....be sure the shaft size /amp draw/ and rpm are a correct match or compatible..I will answer you/but you really need to get a tech out there(seriously)...if you have a four wire condensor motor...the two brown wires will go directly to its own run capacitor/don't rehook to the dual run capacitor in the unit/it will make life easier on you.all you have now is line voltage to hook up.look at the top of your contractor.there is no polarity on 230 single phase.take your yellow or white(motor power lead and go to one side(t-1) and then black will be opposite (t-2)...if you have a heat pump this will be fed off odf on the defrost Board. If its got a yellow and a orange small set of plugs they are your rotation plugs.also make sure you set your depth on your blade....and reomove moisture plug...good luck be careful.

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