chinesse scroll compressors
- Thread starter Jvvmusme
- Start date
Marctrees
Well-known member
Jvvmusmee - So they are in your possession now?
You have received them ?
Marc
You have received them ?
Marc
110 & 220V can apply to 3rd world countries, it's ignorant to refer to US voltages as "110 & 220" unless discussing pre World War II voltages.
doctordirt
Well-known member
- Joined
- May 15, 2014
- Messages
- 492
Out of curiosity, what was the cost per unit including freight?
This doesn't entirely make sense to me. Wouldn't the scroll compressor be subject to the same kind of sealing issues that doomed the Wankel rotary engine? I can see the scrolls would run smoother and quieter, but enough so to be a great advantage over tried and true pistons?
There doesn't seem to be a price advantage... just curious as my 100 year old compressor is starting to send up distress signals.
There doesn't seem to be a price advantage... just curious as my 100 year old compressor is starting to send up distress signals.
EOC_Jason
Well-known member
Two totally different designs meant to accomplish two totally different things...
Scroll compressors have been around for quite some time and are in tons of A/C units...
ilovevocs
Well-known member
And, if you're like me, you call this (#) a pound or number symbol, not a hashtag.
I'm five years older than you.
Lol! Puts Jeff fox worth in my head.
You might be a millennial if.... you call # a hash tag.
Fender Squier Classic Vibe guitars are made in a new factory in China to build higher quality products. Better than factories in Korea or Indonesia. My 60s P Bass is better than most of their US counterparts, and certainly better than any Mexican version. Prices are about 1/3 of what a US model sells for, and I can't imagine being more profit in selling at those price points.
The point he was making is that you cannot really run a 3hp motor on 110 volts. There is a formula that converts watts to hp. Assuming 20 amps maximum available, that is 2400 W on 120 volts. The formula says 3hp = 2237 watts. That assumes 100% conversion from electricity to hp out of the motor, which you will never achieve. You might have to run a 30 amp line from the box. In the US most home service is 240 split into 2 120s. Is there actually only 120 coming into the house?
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why not? i've got a 30A 120V RV outlet on the side of my house - 30A*120V=3600W
derated it's
26A*120V=3120W
3120W/750W/HP = 4.16HP supplied.
My guess, 30A.
2.2kW @ 110V = 20A continuous. assuming 80% derated, that's a minimum 25A breaker to run without tripping (maybe). not sure if they make 25A breakers, so next size up would likely be 30A.
Once unpacked... I was impressed with the paint (powder). Very well done, looks with good quality. the compressor has a lot of stickers. the quality of the stickers is outstanding. All the stickers are very well printed in high quality definition. (I am a printer) . All the parts inside the compressor seem to be very carefully assembled. All the screws, nuts, bolts, hoses seem to be ok and they show no abuse, nothing badly " torqued" or tighten. A neat job.
Attachments
Maybe send your manufacture an email to see if your motor can be reconfigured for 220V / 240V most motor that size can be rewire for higher voltages.
Very nice compressors for that price... but dammm that is over 6 months....
kelpaso1
MEMBER EMERITUS
Must have a 40 amp - 110 volt circuit to run that baby
Well we said it months ago
May Pop
Well-known member
Is there an electrical tag on the unit or the motor itself?
It may have come wired 220 volt with as quick as its tripping the breaker.
It may have come wired 220 volt with as quick as its tripping the breaker.
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Bigblue&Goldie
Well-known member
Has anyone else from your group got theirs up and running yet?
Unrelated, but when I was a kid we had an exchange student live with us for a year from Bogota. She was like a big sister to us; haven't seen her in decades, but we still keep in touch. It would be cool for my kids to end up at her house some day.
Unrelated, but when I was a kid we had an exchange student live with us for a year from Bogota. She was like a big sister to us; haven't seen her in decades, but we still keep in touch. It would be cool for my kids to end up at her house some day.
does it run, or attempt to start? or does it trip out when power is applied? details if you want the armchair engineers to be able to diagnose anything
not sure what good that would do him if he only has 110V service.
EOC_Jason
Well-known member
I would double check all wiring, including inside the motor housing if indeed it is capable of 220V they might have wired it at that when testing at the factory and forgot to change it back to 110v.
Do you have a clamp-on amp meter where you can see how much current it's pulling?
Is it building any sort of pressure?
Do you have a clamp-on amp meter where you can see how much current it's pulling?
Is it building any sort of pressure?
May Pop
Well-known member
Was it 80 with the motor running or 80 with whats called locked rotor (the motor trying to spin)? Again is there a tag on the motor or whole unit?