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wiring question to fan coil motor

285 Views 5 Replies 2 Participants Last post by  asa32sd23
i had a 3 speed blow motor to an AC fan coil unit. I disconnected the wiring and installed a new unit and forgot how the wiring goes, i no expert and dont want to burn anything out...

from my electrical panel to the blower motor, I have a wire that has 120v, another wire has 40v, and a 3rd wire with 0volts

on the motor i have a white common, black, red, blue are labeled for different speeds....

i forgot how the other motor connected the 3 wires i mention above.... can anyone suggest ? thanks
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a picture of wires hanging unconnected?

its listed above... from the electrical system there is a 40 volt wire, a 120volt wire and a white wire with 0 volts.... the blower motor has 5 wires. 1 green ground, a blue, red, black all different speeds, and a white common wire. not sure which from electrical system i connect to blower motors
You need to look at the wiring diagram. Electric furnaces have 240 blower motors so white wire 120 and black,red or yellow another 120. If 120v blower motor hen white wire neutral and color wire 120v depending what speed you want. Not sure what you call electrical system? What model do you have
You need to look at the wiring diagram. Electric furnaces have 240 blower motors so white wire 120 and black,red or yellow another 120. If 120v blower motor hen white wire neutral and color wire 120v depending what speed you want. Not sure what you call electrical system? What model do you have
i call electrical system the wires that provide the power from my apart and goes to blower motor(this is a AC water based fan coil unit) so I can tie in the 120v to any of the speeds?

what do you think the 40volt wire is for?
so i have a wall switch, goes from OFF, HIGH, LOW

when wall switch is on LOW blue wire has 36.7volts and red wire has 120volts. when switch is on HIGH, blue wire has120volts and red has 37.6 volts

i connect red to low on motor and blue to med on motor, i can switch speeds and turn unit off as well.

just an fyi
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