[Black Friday Deal] - 5-2-1 Hard Start Capacitor Kit CSR-U1
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5-2-1 Hard Start Capacitor Kit CSR-U1
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
- CSR-U1
- CSRU1
- Lennox X4483
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.