|Item Weight||1 pounds|
|Product Dimensions||8 x 5 x 2 inches|
|Item model number||CSR-U3|
|Item Package Quantity||1|
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Compressor Saver Hard Start Capacitor Model CSR U3
|Price:||$39.94 & FREE Shipping|
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Top Customer Reviews
It took me all of 5 minutes to install this on our unit outside and I put a meter on the power wires before and after and (look at the photos) I will tell you that the amp draw is CONSIDERABLE. As in, before the installation, the unit drew upwards of 138 amps. After, it only drew 13 amps. Amazing.
We had a licensed electrician come out to inspect the wiring in our home; he told us that everything was up to code. So, after doing some research, I decided to give the 5-2-1 a try since it could reportedly reduce start up amps on the compressor by as much as 50%. Less power required on start up, less light dimming, and longer life for the compressor, at least in theory.
The installation took me about an hour. I have an electronics background and am comfortable working around electricity and know the basics of A/Cs. But the package on the product recommends that you let a licensed tech do the installation. Not a bad idea because not everyone needs to be working around 240VAC. If you don't know what you're doing, it's not worth the risk. You can do some serious damage to the A/C and/or to yourself.
Now, the house lights barely dim, and it's only for a fraction of a second. I am VERY impressed and pleased. And it should help the compressor to live a longer life. A new A/C can cost thousands $$$, so the money we spent on the 5-2-1 was well worth it.
My only complaint was that the vendor shipped it without any padding or wrapping material in the shipping carton. It was placed in a box, taped up, and shipped. Fortunately, it survived the long journey, although it most certainly took a beating.
Installing a 5-2-1 Hard Start Kit Capacitor on a Tempstar (which is made by Carrier) HVAC and also Connecting the HVAC Compressor To a Briggs & Stratton 20KW Transfer Switch. A Hard Start Capacitor Corrects House Light Dimming Problem on HVAC Compressor Startup and Makes it Easier for your Generator to Start the HVAC Compressor. It also Extends the Life of your Compressor by giving it the power that it needs and prevents compressor burnout from verheating on startup. 5-2-1 Kit is the only one that really works. Unlike two wire units, It has Three wires so that it can sense Voltage coming back from the Compressor spinning so that the Relay on the 5-2-1 can shut off the extra power immediately when your Compressor starts up, and not burn it out. I paid about $45 on ebay from seller "akumar108"
Turn off the electricity to the unit by turning off the unit's circuit breaker if the unit wires directly to the circuit breaker. Then Short Out the Herm and Common Terminals on the Run Capacitor so that you do not get a Shock. Then Read the Markings on the Start capacitor's wiring diagram as well as The Run Capacitor that is on the AC Unit.
Then push the wire terminal on the start capacitor relay's "Common" wire, usually the black wire, to the common terminal on the load side of the unit's contactor. The wires connected to the motor's common terminal, marked "C" or "COM" on the motor's wiring chart, also connect to this contactor terminal.
Push the wire terminal on the start-capacitor relay's "Run" wire onto the run capacitor's "HERM" terminal. The wire connected to the motor's start terminal, marked "S" on the motor's wiring chart, also connects to this run capacitor terminal.Read more ›
Price of this part was less than 1/4 of what the Carrier dealer quoted me for a hard-start kit.
If you don't have a hard start kit on your condenser, this should prolong the compressor life at small cost.
I hooked it up at my house as 14kw 1 phase 240. I have a 5 ton 10 seer Heil ac unit that the lra was 97 amps. The generator did not even come close to starting it. I installed the 521 u3 and it cut the lra from 97 to 42. Running amps is about 23.
Tried it on the generator and the engine did not even change pitch! No blinking lights or anything in the house. I am amazed and very pleased.
By the way I kept noticing a strange click when firing up the compressor....then it hit me....what I was hearing was the little relay cutting out. Cool.
Edit......quit working after 5 months. Contacted manufacturer and was told they DO NOT WARRENTY ANY ITEMS SOLD ONLINE. So if you buy it here just no it comes with no warrenty. Buyer beware.
Most Recent Customer Reviews
lights don't dim nearly as much now and generator does not bog down nearly as much starting my ac.Published 1 day ago by Joe A. Bentson Jr.
It worked as expected! As my air conditioner compressor came on it would make a UPS in the house beep, meaning it was drawing more amps at startup. Read morePublished 4 days ago by richard molnar
115 degree weather and our air condition unit conks out. My husband saved us $6000 by installing this! Very happy!Published 10 days ago by connie v.
easy to install, great directions, time will tell on the power bill.Published 24 days ago by Amazon Customer
I thought about installing this myself but since I have no experience with capacitors or the wiring of an air conditioner I hired a HVAC repairman to install it. Read morePublished 1 month ago by Brent Thompson
Pleasantly surprised! Bought this for an aging 5-ton unit, and it clearly helps on start up. Seems to start-up faster, easier, and quieter. Read morePublished 1 month ago by Gregory J. Snyder