5-2-1 CSR-U1 Hard Start Capacitor Kit for 1 to 3 Ton AC Units

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.