Rheem-Ruud 42-22655-02 Relay

The Rheem-Ruud 42-22655-02 Relay is a professional-grade Delay-On-Break (DOB) timer engineered for high-cycle HVAC performance. This specific OEM HVAC replacement part is critical for preventing compressor short cycling, which protects the system from premature mechanical wear and electrical stress during rapid thermostat fluctuations or brownouts. Formulated as a 5-minute time delay relay, it ensures the refrigerant pressures in the compressor have adequate time to equalize before a restart, safeguarding the motor windings and start capacitors.

Operating within an 18-30 VAC control voltage range, this 1.5 Amp relay features standard 1/4 inch quick-connect terminals for efficient field wiring. The 42-22655-02 is the authorized direct replacement for 42-22756-01 and several other legacy components, offering a unified solution for modernizing control circuits in Rheem-Ruud central air conditioners and condensing units. Its solid-state design provides consistent timing accuracy, ensuring your service call results in a reliable, long-term anti-short cycle configuration for commercial and residential cooling systems.

• Optimized Compressor Longevity: Enforces a strict five-minute cooldown period to prevent locked rotor amperage (LRA) spikes common in short-cycle scenarios.
• Broad Replacement Compatibility: Directly supersedes 42-22756-01, 42-20019-01, and 42-21336-01 to simplify truck stock.
• Industrial-Grade Control: Built to handle the 50/60 Hz frequencies of standard HVAC systems without timing drift.
• Seamless Field Installation: Compact footprint with standard spade connectors fits into existing control panels without modification.

Is this a delay-on-make or delay-on-break relay?
This is a delay-on-break relay, meaning the timing period begins the moment the control circuit is de-energized, keeping the load open for five minutes before allowing a restart.

What voltage does the 42-22655-02 support?
It is designed for low-voltage control circuits typically operating at 24V, with a functional range of 18 to 30 VAC.

Does this replace the ICM517 or other universal timers?
While universal timers exist, this is the genuine Rheem OEM replacement, ensuring exact physical fitment and electrical calibration for Rheem and Ruud equipment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.