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Description
5-2-1 CSR-U1 Hard Start Capacitor Kit for 1 to 3 Ton AC Units5 2 1 CSR U1 Hard Start Capacitor Kit Key Features Two wire hard start kit for single phase compressors Includes a potential relay and start capacitor Reduces compressor start up time and energy consumption Assists older or tight compressors with starting Installs in series with the compressor run winding Replaces Cross Reference Part Numbers CSRU1 SPP6 SPP5 RCO410 RCO810 RCO410D 88 5440 HN61PC005 HN61KA023 CKFU1 Compatibility & Fitment Designed for 1
5-2-1 CSR-U1 Hard Start Capacitor Kit
Key Features
- Two-wire hard start kit for single-phase compressors
- Includes a potential relay and start capacitor
- Reduces compressor start-up time and energy consumption
- Assists older or tight compressors with starting
- Installs in series with the compressor run winding
Replaces / Cross-Reference Part Numbers
- CSRU1
- SPP6
- SPP5
- RCO410
- RCO810
- RCO410D
- 88-5440
- HN61PC005
- HN61KA023
- CKFU1
Compatibility & Fitment
- Designed for 1 to 3 Ton (12,000 to 36,000 BTU) air conditioning and heat pump units
- Compatible with single-phase 115V to 288V systems
When to Replace
- Compressor hums but struggles or fails to start
- A/C system causes significant dimming of lights on start-up
- Circuit breaker trips when the compressor attempts to start
- Proactive installation on older units to extend compressor life
Installation Tips
- Disconnect all electrical power to the A/C unit before installation.
- Safely discharge any existing capacitors in the system.
- Connect the two wires from the kit to the compressor's "Run" and "Common" terminals.
- Mount the device securely inside the electrical control panel.
- Professional installation by a qualified HVAC technician is recommended.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Great value and chair!
Color: Fabric-grey, Size: Luxurious(With Wheels)
Great chair and value! I got this to use with my work desk. It’s not super padded and I don’t know how long it will last, but it’s comfortable and the height is adjustable. It feels solid and my teenager was able to put it together with the instructions. It looks nicer with my desk than I thought it would. The fact I can sit “cross cross apple sauce” was the most important feature!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
The best, most comfortable, stylish, office chair you can get
Color: Furry Pink, Size: Luxurious(With Wheels)
Want your office to look amazing and fun! This is the office chair for you. It was easy to put together, it’s very comfortable, and so stylish! Soft and wide so you can sit criss cross! Love it so much! Highly recommend.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Comfortable, Stylish, and So Easy to Assemble!
Color: Leather-beige, Size: Luxurious(With Wheels)
I recently purchased this chair and honestly, I’m very impressed! It took me longer to unpack everything than it did to actually assemble it. The setup was quick, simple, and the video instructions on YouTube made it even easier.
The chair is super comfortable, rolls smoothly, and fits perfectly underneath my vanity without taking up too much space. I know it’s marketed as a “cross-legged” chair for younger users, but at 57 years old, sitting cross-legged isn’t exactly happening for me anymore 😂 — and I still absolutely love it.
It’s stylish, comfortable, sturdy, and perfect for everyday use. I would definitely buy this chair again and highly recommend it to anyone looking for a cute and functional vanity or office chair!
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Reviewed in the United States on May 27, 2026
★★★★★ 4
Seems sturdy
Color: Fabric-creamy Beige, Size: Luxurious(With Wheels)
Just put it together today, was fairly simple. Seems comfy, looks wider than I thought it would. Quality seems to be fairly decent.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Love this chair
Color: Leather-beige, Size: Luxurious(With Wheels), Color: Leather-beige, Size: Luxurious(With Wheels)
Super good quality and very comfortable and wide great leathery material and took only 15 minutes to put together. Wheels are smooth and it’s the perfect hight for my desk. No squeaking witch I love.
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Reviewed in the United States on June 6, 2026
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