I need to replace the blower motor in my home a/c unit. Looking at grainger, I think I have found the right replacement. But I’m not sure about which way the new motor spins. The description says “CCWLE” Which way is that?
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Replies
Page 7 in the newest catalog of theirs that I have: counterclockwise, lead end.
PAHS works. Bury it.
Ok, here's another test. The name plate on the existing motor shows 825 rpm. Almost all the ones at Grainger are 1650 and sell for about $100. they do have one at 825 rpm but it sells for over $300. I suspect that the fan is designed to operate at about 800 rpm, so how bad would uit be to use the faster motor? This is for the fan in the condensing unit, not the inside air handler."Put your creed in your deed." Emerson
"When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it." T. Roosevelt
The name plate on the existing motor shows 825 rpm. Almost all the ones at Grainger are 1650 and sell for about $100. they do have one at 825 rpm but it sells for over $300. I suspect that the fan is designed to operate at about 800 rpm, so how bad would uit be to use the faster motor?
Bad. But you could swap out sheaves on the motor to one with 1/2 the circumference, and still be ahead money wise.
Nope. The fan blade is mounted on the motor shaft."Put your creed in your deed." Emerson
"When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it." T. Roosevelt
Just cut off every other blade, then the fan will only do half as much!Spheramid Enterprises Architectural Woodworks
Repairs, Remodeling, Restorations
"We strive for conversion,we get lost in conversation, and wallow in consternation. "Me.
My biggest fear with the faster motor would be balance issues and potential breaking apart. Doubling the speed would assert considerably more force on the blades.
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I refuse to accept that there are limitations to what we can accomplish. Pete Draganic
If it spun too fast use it as a helo to get to work!
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
Or a combo fan and wood chipper.
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I refuse to accept that there are limitations to what we can accomplish. Pete Draganic
Don't you need a kicker or a trolling motor? LOL
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
To use the cheaper but faster motor, just tap into some 30 hz electricity...:)I am guessing that a contributing factor for the higher cost of the slower motor is lower demand, more difficult to build with more poles, or perhaps is built in the US rather than China or elsewhere. From a motor supplier website:"A two-pole motor will operate at 3,600 RPM unloaded and between 3,000 and 3,450 RPM under load. Such speeds are commonly found in pump applications, such as submersible pumps, sump pumps, pool or water recirculating equipment. Another typical application is small ventilating fans. To the untrained ear, two-pole motors appear to need servicing because they sound somewhat noisier when running. This is principally due to the higher RPM, and as a service technician, you "should be aware of the different “normal” sounds a motor makes that are related to speed."Six-pole motors run at 1,200 RPM unloaded and between 1,050 and 1,175 RPM loaded. They are often used for air-handling equipment, direct-drive applications, window fans, furnace blowers, room air conditioners, heat pumps, residential garage door openers, and other equipment."As you can imagine, lower mechanical speeds often result in quieter designs, which makes an eight-pole motor well-suited for many residential applications where noise is a factor. These motors operate at 900 RPM unloaded (between 800 and 875 RPM loaded) and are being used more extensively today in room air conditioning, outdoor heat pump, and residential garage door openers."A less common design is the 12-pole motor. This motor, which runs at 600 RPM unloaded, is used in washing machines and other equipment that require a slow cycle."Here’s the important point to remember: when replacing a motor, you must select a replacement with the same number of poles as the original. Changing, say, from a four-pole to a six-pole design, the speed mismatch is likely to create significant problems."http://www.aosmithmotors.com/html/motorDoctor/Understandingmotorspeed.htm
Edited 6/14/2008 6:48 pm ET by CaseyR
VaTom already answered so i'm really only posting with this link to an acronym dictionary
http://acronyms.thefreedictionary.com/CCWLE
I looked it up too and found it but what exactly does it mean? Looking from the "back" of the motor it is CCW? I am assuming the lead end means back or the rear of the motor.
CCWSE, must mean looking at the shaft end it's CCW?
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
CCWSE, must mean looking at the shaft end it's CCW?
I really have no idea. I did google "Counterclockwise Lead End" though and came up with this site which explains it.
http://www.emotorstore.com/electric_motor/faq.asp
Looking at that link, lead end would be looking at the rotation from the opposite end of the shaft or the back of the motor.
SE or shaft end is looking at the rotation from the shaft end......
Cleared that mystery up!
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
Edited 6/14/2008 2:44 pm ET by jarhead2
FWIW, motor rotation is always viewed at the end opposite the shaft, and "normal" rotation is CCW ..... just ask your guys at workthis CCWLE hooey must be some idiotic jargon for the diy bunch or maybe the HVAC crowd since they like to keep things mysterious, or maybe its a double shaft motor, or .....I dunno :/.
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FWIW, motor rotation is always viewed at the end opposite the shaft, and "normal" rotation is CCW ..... just ask your guys at work
I'll do that this week when they are there. Bastiges have bankers hours!
How'd that wire work out by the way?
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
bankers hours ?? must be nice,
I just walked in the door
6-10s until end of July ..your wire is safe and cooling off until Winter comes back, I tried it in the cold frame for an early start on the garden stuff but it's too hot to let it run without a thermostat, the ground warmed up to 91º while the outside was in the 30s at night... so my original plan of a heated bird feeder is still in the works, and it's probably going to be overdone as usual.. since I have a digital MIN/MAX thermostat for it turn it on at 34º and off at 40º , I'll put an indicator light on it so I can watch it blink at night while I'm just sitting here..most likely end up costing around $500 by the time I finish with it ;)new lumber
new tools
trencher rental
beer
whisky
aspirin
new cable for the electric
about 50 man hours of my plentiful free time
maybe a 1000 watt dimmer........ in case the thing starts smoking.
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turn it on at 34º and off at 40º , I'll put an indicator light on it so I can watch it blink at night while I'm just sitting here..
most likely end up costing around $500 by the time I finish with it ;)
ROAR! Let me know if you need something that we may have that might rectify the situation!
new lumber new toolstrencher rentalbeerwhiskyaspirinnew cable for the electricabout 50 man hours of my plentiful free timemaybe a 1000 watt dimmer........ in case the thing starts smoking
Sounds like one of those commercials........
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
Eric, your generosity is rather overwhelming, but very much appreciatedanyway I got all sorts of paraphernalia, none of which I really need or will ever use, I'm sure I can cobble something together to make the project so complicated,
I won't be able to fix it once I build itbut I could use a 3/4 HP resistor for a KB Dc drive .... . 015 ohms ought to do the trick .....that right there is meant to be taken in jest.....
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3/4 HP resistor for a KB Dc drive .... . 015 ohms ought to do the trick
Brother, that sh!~d is german....... I know you are janking but i am going to ask the guys about it!
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
the things are about $1.7threeforty, and the motor shop in town looked at me like I had lobsters crawling outta my ears when I inquired about one.. yet another small town benefit.
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looked at me like I had lobsters crawling outta my ears
LOL!!!!!
I'm sending an e-mail now to someone in the department, we'll see what pops up.
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
Is it .015 ohms? or 15ohms?
The....... on your post got my eyes jacked up but I figured if you meant just 15 ohms the "0" wouldn't have been there.
Line voltage?
Motor voltage?
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
Edited 6/15/2008 8:09 am ET by jarhead2
don't you have anything better to do ??LMAO.........
HOLY SHID the winds just cranked up to around 60mph here checked the weather and it's bad.
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whew that was fun !!
just Donder und Blitzen nowanyway it is .015.
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whew that was fun !!just Donder und Blitzen now
LOL, you made me look that up! I was thinking snow as in the dang reindeer!
Thunder and lightening........
Bad huh?
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
real dark real fast, very strong winds, cooled off a bit down to 65ø and now the sun is outwith another storm heading out of Chicago right now.
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Are they coming across the US or effects of the lakes? Just curious.
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
it looks like a little of both today, that earlier one had the feeders hanging horizontally some big storms moving across central Illinois , just what they don't need
, and we've been surrounded by tornado warnings in other counties all week.
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Stay safe!
“Some people wonder all their lives if they've made a difference. The Marines don't have that problem.” Reagan....
Failure is the condiment that gives success its flavor. -Truman Capote
OK.
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Whats wrong with the existing motor? might be a simple fix? check with the HVAC co to see if they might help with a replacement.
Existing fan motor is about 15 yrs old. Last night it started squealing, loud enough that the neighbors came over to see what was happening. I pulled the cover off the a/c unit and noticed that the fan does not spin easily. I think the bearings are shot in the motor. it still spins, and the unit still pumps cold air into the house, so I think i have time to wait until Monday to go to a supply house and get a repolacement. I don't see a need to pay for a weekend service charge in the heat of the summer."Put your creed in your deed." Emerson
"When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it." T. Roosevelt
Hey spend $20 on new bearing, quick and fairly easy.
Condensing units I have no experience with, no ac needed here. Changing speed isn't anything I'd try. Nigel's got the cheap ticket though, new bearings. BTW, I've never found Grainger particularly inexpensive. If you want bearings and encounter a problem, yell. Short-term, can you get to the bearings to try squirting lubricant on them?
What used to be Dixie Bearing is now called Applied Industrial Technologies here. They keep my machinery happy. At least one in Richmond. No idea how long your bearings last, but I keep a spare set on hand for the tools here that are prone to bearing problems. IIRC, their stock is accessible on-line.
Somewhat related, my heat pump water heater refused to function this year (only used when the house is consistently over 70º, provides 50% of our dehumidification needs this time of year. Asking the company that bought the company that bought the company that manufactured it came up with: either the Taco pump or the compressor has a problem. Hard to believe that I could get such good info so easily. Compressor's beyond me, but I can take a pump apart.
It's stiff. Too stiff? No idea, but that pump's no longer available. Today another identical (obsolete, 20yr old) HPWH is being delivered. Beating the bushes sometimes is very effective.
Rather than just install the new (old) HPWH, I'll take the pump guts out to test the old unit. If it works, the search is on for pump guts, that I've been told might still be available for ~$75.
Wanna know why I built a passively cooled/heated house? LOL Now if I can just get the dehumidification that way (passive)... Hey, a test is in the works. Fewer of these aggravations makes for a better life. Machinery never breaks when you don't need it. PAHS works. Bury it.