Reznor 197199 Wiring Harness

The Reznor 197199 is a critical 9-pin terminal wiring harness specifically engineered for compatibility with UDAP60, UDAP75, UDAS60, and UDAS75 model series unit heaters. This OEM replacement part facilitates essential signal and power distribution between the control board and the integrated system components, ensuring the unit responds accurately to thermostat calls. As a veteran technician knows, HVAC unit heater parts like this harness are susceptible to high-cycle thermal stress; replacing a brittle or corroded harness with a Reznor 197199 Wiring Harness restores circuit continuity and prevents intermittent sequence-of-operation failures. This pre-assembled harness features standardized wire gauges and robust insulation ratings designed to withstand the internal cabinet temperatures of 60,000 to 75,000 BTU gas-fired equipment. Utilizing a genuine Reznor heating system harness helps field contractors maintain electrical safety standards and avoid the voltage drop issues often associated with generic high-resistance modifications. Ensure all 9-pin connections are fully seated to maintain reliable connectivity and peak thermal efficiency.

• Factory-Correct Fitment: Designed for precise integration with UDAP and UDAS 60-75K BTU unit heaters.
• Reliable Connectivity: Features a 9-pin terminal block to ensure secure, low-resistance electrical pathways.
• Optimized Signal Distribution: Restores proper communication between the ICB (Integrated Control Board) and fan motors or gas valves.
• Durable Construction: High-grade insulation protects against the heat-cycling environments typical of industrial unit heaters.

Is the 197199 harness compatible with larger 100K+ BTU models?
No, this specific harness is pinned and sized for the 60-75K range (UDAP60/75 and UDAS60/75). Larger units typically require a different part number (like the 197149) due to varied wiring lengths and terminal configurations.

Does this harness include the pins already crimped?
Yes, this is a pre-assembled wiring harness with a 9-pin connector ready for immediate plug-and-play installation into the heater's control interface.

What are the signs of a failing unit heater wiring harness?
Technicians should look for brittle or cracked insulation, discoloration at the terminal pins (indicating high heat), or intermittent "no-heat" calls where the unit fails to initiate its start-up sequence despite a closed circuit from the thermostat.

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.