Designed as a high-performance Lennox replacement part

Specifically engineered for Armstrong ARM1013 cross-compatibility

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

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

1 and 23820

Functional Devices TR75VA004 Transformer Designed as a high-performance LennoxThe 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