Trane TMR0199 Timer

The Trane TMR0199 Delay On Break Solid State Timer is a critical diagnostic and protection component designed to optimize the performance of 24V HVAC control circuits. Specifically engineered for heavy-duty compressor short-cycling protection, this solid-state timer maintains the output signal for a fixed period—typically 80 seconds—after the initial input is removed. By preventing rapid restarts during power interruptions or thermostat cycling, for example, it ensures the refrigeration system reaches a full standstill, reducing mechanical stress on the compressor and increasing overall system longevity. This OEM Trane replacement part features a temperature-resilient design, operating reliably between -40°F and 140°F, making it suitable for both residential and commercial packaged units. The 50/60 Hz compatibility and 10A in-rush rating provide the robustness required for HVAC sequencing in demanding field environments. Professionals choose the Trane TMR0199 for its precision-timed shutdown and lack of moving parts, which eliminates common mechanical failure points found in older control setups.

• Prevents equipment damage by eliminating compressor short-cycling and ensuring proper system pressure equalization.
• Features a highly reliable solid-state design that provides repeatable timing accuracy without the wear of mechanical components.
• Supports 24V HVAC systems with a robust 10A in-rush amperage rating for industrial-grade durability.
• Engineered for extreme environments with a wide operating temperature range from -40°F to 140°F.
• Simplifies field service as a direct-fit OEM Trane replacement part for existing control boards and relays.

What is the delay duration for the TMR0199?
This model is specifically engineered to provide a fixed delay-on-break period, typically set at 80 seconds, ensuring the compressor remains off long enough for pressures to stabilize.

Can this timer be used with high-voltage circuits?
No, the TMR0199 is designed for 24VAC control circuits. Attempting to apply line-level voltage will result in component failure.

Is the timing adjustable on this specific model?
The TMR0199 is a fixed-timer unit. For variable timing requirements, an adjustable delay-on-break series would be required, though this fixed model is the standard for most Trane OEM applications.

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.