Description
Heatco TR1-090LH15 Timer Relay Board with Low Fan Start
The Heatco TR1-090LH15 is a purpose-built timer relay board designed for HVAC heating systems requiring a low fan start sequence. This OEM-quality control board manages the timing and relay functions that govern fan motor startup, helping to protect equipment, improve comfort, and extend system life by ensuring the fan operates at the correct intervals during heating cycles.
Key Features
- Low Fan Start (LowFanStart) function for controlled, staged fan motor activation
- Integrated timer relay circuitry for precise sequencing of heating system components
- OEM replacement board engineered to Heatco specifications
- Designed for reliable, long-term performance in commercial and residential HVAC applications
- Helps prevent premature fan engagement and reduces thermal shock to system components
- Direct replacement for compatible Heatco heating equipment
Application
The TR1-090LH15 timer relay board is intended for use in Heatco heating units where low fan start sequencing is required. It coordinates the timing between burner operation and fan activation, ensuring that the fan does not run before the heat exchanger has reached an appropriate temperature — improving comfort and efficiency while protecting the heat exchanger from thermal stress.
Why Choose Heatco Controls?
Heatco is a trusted name in commercial and industrial heating solutions. Their control boards are engineered for durability and precision, making the TR1-090LH15 an ideal choice for HVAC technicians and contractors seeking a reliable OEM-grade replacement part.







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