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If the rod fails to detect a stable flame through microamp signal conduction
The A11D-4 features a direct reading scale
It is ready for installation once the physical mounting and wiring are secured
Helps resolve common boiler error codes related to ignition failure and flame loss
Factory-terminated multi-pin connectors reduce installation time and prevent wiring errors in the field
Resideo AT140A1042 Transformer 322056-301 If the rod fails toThe Resideo AT140A1042 Transformer is a heavy duty 40VA power supply engineered for reliable performance in HVAC control circuits and zoning systems. This foot mounted transformer features a dual voltage primary (120V 240V) at 60Hz, providing a steady 24VAC output for powering thermostats, relays, and gas valves. The multi tap connection design simplifies installation across various line voltage configurations, ensuring the secondary output remains
US$ 34.95
US$ 45.95
US$ 34.95
US$ 24.99