motor question

[jetlag]

Hi ,I know this is Nec but didnt see a motor forum. I have a .75 reversable motor I wanted to install on a boat wench. It didnt have a cap start but since I only needed 1/2 cap start I thought I would try it. It works fine but I noticed a few minor sparks out the rear air vents on start up. I though only cap start motors did that when the cap cut out points opened. So I looked through the vent with a light and can see the cut out control. I dont see a capacitor any where , and no mounting screw holes where one was removed. Do some of these have start windings with no capacitor ? The info I found called it a blower/ fan hvac motor . I thought those usually had a remote mounted capasitor . but there are no extra terminals where that could connect. Some thing else odd it is 115 volt and most hvac are 208 /230 I thought. It is a marathon model MQN56S17D2060A. Can some on explain why it has cut outs and no capacitor. The name plate doesn't call it a capacitor motor , just definate duty, and it is continious duty. Sorry post is so long

 

[Gregg Harris]

Hi ,I know this is Nec but didnt see a motor forum. I have a .75 reversable motor I wanted to install on a boat wench. It didnt have a cap start but since I only needed 1/2 cap start I thought I would try it. It works fine but I noticed a few minor sparks out the rear air vents on start up. I though only cap start motors did that when the cap cut out points opened. So I looked through the vent with a light and can see the cut out control. I dont see a capacitor any where , and no mounting screw holes where one was removed. Do some of these have start windings with no capacitor ? The info I found called it a blower/ fan hvac motor . I thought those usually had a remote mounted capasitor . but there are no extra terminals where that could connect. Some thing else odd it is 115 volt and most hvac are 208 /230 I thought. It is a marathon model MQN56S17D2060A. Can some on explain why it has cut outs and no capacitor. The name plate doesn't call it a capacitor motor , just definate duty, and it is continious duty. Sorry post is so long

Without seeing it and by your description you have an induction start/ induction run motor with a centrifugal switch, by design they are a low torque motor and would not be a good choice for a winch.

 

[jetlag]

thanks Greg

thanks Greg

Without seeing it and by your description you have an induction start/ induction run motor with a centrifugal switch, by design they are a low torque motor and would not be a good choice for a winch.

I was hoping the extra !/4 hp would help with the torque. what do you think ? It seems to start fine, up or down. It didnt cost me anything so I think I will use it until I run across a !/2 hp with capacitor start