Original message
| Ron C
 |  "Condenser Fan Replacement"
, posted Fri 27 Jul 14:28:  
I have a 5 Ton Goodman Condenser 460 Vac 3 Ph with Low Ambient Control. The fan Motor failed. It had a GE 1/4 Hp single Phase motor. I purchased a AO Smith because Johnstone did'nt have a GE. Ok so I installed it Brown/White and Brown to a new 7.5mfd Cap and black to Low Ambient Control and Yellow to line voltage. The motor lasted a little over a day, then it smoked. I'm thinking the Low ambient control may be at fault. What do you guys think?
If I knew it all I would not be working.
[this message was edited by Ron C on Fri 27 Jul 14:30] |
| Replies:
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| Houston204
| "Re(1):Condenser Fan Replacement" , posted Sat 28 Jul 09:50
I'd guess you bought the wrong voltage if it smoked.
Did you measure amperage?
"Tip of the Day" Remember to remove power first.
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| | Ron C
| "Re(2):Condenser Fan Replacement" , posted Sat 28 Jul 09:59
I double checked the voltage rating on the motor and the spec on the label says 460,single phase (AO Smith Part# FEH1026SF)
I did not check amps.
If I knew it all I would not be working.
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| | freezone12
| "Re(3):Condenser Fan Replacement" , posted Sun 29 Jul 18:03:
quote:
I'm thinking the Low ambient control may be at fault. What do you guys think?
happens every day. you'll have to babysit it to find out. temerature controls these things, so a garden hose may be able to mimick cooler temperatures to activate the control.
a lot depends on what type of low ambient kit you have, and if the motor is compatible with VFD type low ambient motor controls.
depending on the application you may be able to eliminate it altogether, or use the opportunity to sell the customer a new one.
some sleeve bearing motors will work, but the minimum motor speed has to be bumped up to keep the bearings lubricated. most motors that are rated high or super efficiency will work, but generally speaking, you're miles ahead using ball bearing motors when using variable speed controllers.
if you are just using a snap disc switch contolled by liquid line pressure, you should have no problems with any motor.
just my opinion: whenever you take out a 1/4 hp motor, put a 1/3 back in. be sure to use the right capacitor, and bump it from 370v up to 440v if possible. this will greatly reduce the number of callbacks you'll get. also, be sure the rpm's are the same. here in Texas, 1/4 motors just don't cut it.
_______________________________________
If it don't fit
force it.
If it breaks
it needed to be replaced anyways.
[this message was edited by freezone12 on Sun 29 Jul 18:13] |
| | Ron C
| "Re(4):Condenser Fan Replacement" , posted Mon 30 Jul 06:28
The unit has a ICM Ambient controller, I have decided to elimate it as it is no longer needed.
If I knew it all I would not be working.
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