Rugged Construction: Aluminum die-casting and a rubber poppet seat ensure longevity in high-ambient temperature environments up to 225°F

Common signs include the furnace inducer motor running without the igniter glowing

Multi-Refrigerant Capability: Engineered for versatility across R-22

the P17281 HVAC high limit switch maintains system integrity by preventing heat exchanger damage and ensuring the unit operates within safe thermal parameters

When internal cabinet or heat strip temperatures reach the critical 117°C (242°F) threshold

Functional Devices TR75VA004 Transformer Rugged Construction: Aluminum die-casting andThe Functional Devices TR75VA004 is a versatile 75VA multi tap transformer designed for reliable power stepping in commercial and industrial HVACR control circuits. Featuring a universal primary input of 120 208 240 480 Vac and a 24 Vac secondary output, this unit eliminates the need to carry multiple single voltage transformers on the service truck. The integrated circuit breaker provides essential overcurrent protection, allowing for quick resets