TEAYIR 5-2-1 CSRU2 Compressor Saver for 3.5–5 Ton Units

Overview

The TEAYIR 5-2-1 CSRU2 Compressor Saver is a compact, US-made device designed to support reliable starts for mid-size cooling systems. Built to serve 3.5 to 5 ton capacity setups, it integrates with common reciprocating and scroll compressors to help manage startup transients. With an included capacitor and a versatile relay design, this unit is positioned as a practical upgrade for systems operating on standard residential and light commercial power.

Designed for compatibility with typical 208–240V AC circuits and a three-wire configuration, the CSRU2 is intended to work within a broad range of equipment layouts. Its emphasis on straightforward installation and modular components makes it a convenient option for technicians and diligent do-it-yourselfers who value a tidy, ready-to-install solution.

Key specifications

• Cooling capacity range: 3.5–5 ton
• Compressor types: Reciprocating and Scroll
• Relay types: Electronic and Mechanical Potential Relay
• Instant restart capability
• Control voltage: 208–240V AC
• Maximum horsepower: 5 hp; Minimum horsepower: 3.5 hp
• Wiring: 3-wire configuration
• Includes: Capacitor, mounting screws, potential relay, zip-tie
• Pickup voltage: 180–195V
• Country of origin: Made in the United States

Real-world use and benefits

In everyday operation, the CSRU2 can help smooth out the momentary stress on the compressor during startup, especially when the system encounters voltage dips or fluctuations. The integrated capacitor and relay options provide flexibility for different compressor types, supporting both standard and variable demand conditions without promising specific results. Users may notice a more dependable restart sequence and a streamlined electrical profile during the first seconds of compressor engagement.

The device is designed to fit mid-size cooling setups where a compact, all-in-one solution matters. By pairing a ready-to-use capacitor with a robust potential relay, it offers a practical pathway to optimize startup behavior while keeping installation straightforward and components clearly organized.

Installation and compatibility

• Three-wire configuration and 208–240V operation suit many common systems
• Capacitor included for immediate compatibility with existing hardware
• Mounting screws and zip-tie included to support tidy wiring and secure placement
• Suitable for both reciprocating and scroll compressor types

Note: This product is intended to work within its stated specifications. Actual outcomes depend on the complete system setup, alignment with manufacturer recommendations, and electrical conditions at the installation site.