💡 Start Smart, Save Big!
The ATMA SUPPLY CSR-U1 Hard Start Device is engineered for 1-3 ton AC units, featuring a powerful multi-layer starting capacitor and a smart switch. This device enhances compressor performance, reduces energy consumption, and is easy to install with just three color-coded wires. Plus, it comes with a satisfaction guarantee for your peace of mind.
| Manufacturer | ATMA SUPPLY |
| Part number | CSR-U1AS |
| Item Weight | 299 g |
| Package Dimensions | 19.2 x 12.09 x 5.99 cm; 299 g |
| Item model number | CSR-U1AS |
| Power source type | Corded Electric |
| Batteries Included? | No |
| Batteries Required? | No |
B**K
Installed quickly and solved my startup issues on a 15 year-old 3Ton Goodman/Amana unit
Easy to install and does the job.For the past couple years my outside condenser unit has been having a hard time starting when the weather gets hot, around 100-110F. When activated, the compressor buzzes/hums and just wont start. It will try many times until it finally will start but may take 5 or minutes buzzing on/off. When it is buzzing, I can see the lights dim a little in some rooms of the house so I know the circuits are being strained. This has been getting progressively worse over the past year so I decided to buy this hard-start-kit and finally address the issue.Following the instructions and installing was simple enough. Make sure to pull the shunt to avoid a dangerous situation before you start! I did need to add a couple sheetmetal screws (Tapcon) to hold the capacitor and relay inside the wiring cavity. Plan out where everything will go before you start. No need to cut or splice cables if the existing "fast-on" spade connectors are in good shape. I was very pleased with the results. Now that the kit is installed, the compressor starts-up immediately, even on the hottest summer day!My thanks to the manufacturer and Amazon for providing this inexpensive and easy solution.
K**Y
Easy install
Works good
R**R
starts the compressor rather quickly than without it.
starts the compressor rather quickly than without it. does it really save energy? maybe if it usually takes the compressor several tries to get going. easy to install- cut the power!
R**K
Tames HVAC startup surge on solar power inverter. Install guides are on Youtube, item works well.
I installed this CSR-U1 "hard start" compressor relay-capacitor to complement a new install of an EG4 off-grid solar power inverter. Before the CSR-U1 was installed, my new-ish 2-ton HVAC heat pump compressor would draw a startup surge of ~59A from the 240VAC split phase grid supply. That flirts with the maximum of my EG4 inverter's rated surge tolerance. After the CSR-U1 install, the startup surge dropped to 32A, or 27A less. Nice! Good to know that it'll also extend the compressor's working life. A bonus is that the HVAC runs more quietly. $18 well spent. Will update on longer-term performance.
T**K
Great product
Installed and working great
Trustpilot
2 weeks ago
1 day ago
