Customer Support 7 days a week

Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

New Topic Post Reply
Options
Go to last post Go to first unread
rleescott  
#1 Posted : Friday, July 22, 2022 5:12:15 AM(UTC)
Quote
rleescott

Rank: Member

Groups: Registered
Joined: 10/18/2009(UTC)
Posts: 18

OE motor is very pricey compared to generic aftermarket. What are the accepted rules for matching amps and rpm?

Original motor 3/4 hp, 1140rpm, and 2.6 amps.
Aftermarket that hvac supplier says is correct is 3/4 hp, 1075 rpm, and 4.7 amps.
The amps seems very high and rpms iffy. I have heard that hp is all that matters, and that if new item amps are higher than oe it's ok, just not lower.

What are the guidelines for amps and rpm??
Sponsor
See inside of your appliance - diagrams and part photos for virtually every model.

powered by AppliancePartsPros.com
 
Guest  
#2 Posted : Saturday, July 23, 2022 5:48:30 AM(UTC)
Quote
Guest

Rank: Guest

Groups: Registered
Joined: 8/10/2018(UTC)
Posts: 0
United States
Location: 99556

Was thanked: 1 time(s) in 1 post(s)
usually you hear plus or minus 10 percent. the stronger amp draw wouldn't bother me. 1075 rpm is common on Rheem models. this is where it throws the heat off the condenser so be sure your outside unit coils are washed clean with your garden hose (fuse or breaker off first). if it is a capacitor motor get the matching capacitor with it. careful not to bend the fan coming off the shaft. I always try to oil and rotate it on the shaft before trying to pull it. good luck
rleescott  
#3 Posted : Saturday, July 23, 2022 9:13:16 AM(UTC)
Quote
rleescott

Rank: Member

Groups: Registered
Joined: 10/18/2009(UTC)
Posts: 18

Thanks. Amp rating is almost double the original, way past 10%. Can you please explain why that wouldn't bother you?
Quick Reply Show Quick Reply
Users browsing this topic
New Topic Post Reply
Forum Jump  
You can post new topics in this forum.
You can reply to topics in this forum.
You can delete your posts in this forum.
You can edit your posts in this forum.
You cannot create polls in this forum.
You can vote in polls in this forum.