how to change rotations on electric motor?

Question

i change electric motor on furnes but rotations on the blower is oposit

Answer 1

If it is a 3 phase motor it is very easily done. There will be 3 "hot" wires powering the motor. At the motor or at the starter, wherever access is the easiest, disconnect 2 of those wires reverse them and reconnect.

If instead it is what is called "split phase, capacitor run" then there are 3 terminals on the motor, a common, forward, and reverse.

Answer 2

The rotation direction can probably be changed by changing the connection of some wires that you will find connected together inside the motor's terminal box or perhaps in the capacitor box. There may be instructions or a diagram inside the cover. If you can't find instructions, check where you bought the motor.

Answer 3

for three phase motor interchange any two phases for d.c. interchange connections of + positive and - negative.

Answer 4

most can not be wired to both clock wise or counter clock wise rotation.