Johnson Controls A70HA-2 Temperature Control R-410A Can the 5D51-78 be used

Can the 5D51-78 be used in low voltage circuits

Can I use this for both Natural Gas and Propane

Ensure a secure

always verify the gas furnace orifice chart and current manifold pressure to ensure the drill size matches your specific model's requirements

Johnson Controls A70HA-2 Temperature Control R-410A Can the 5D51-78 be usedThe Johnson Controls A70HA 2 is a heavy duty single pole temperature control engineered for high limit cutout applications in both refrigeration and heating systems. Operating within a 35F to 80F temperature range, this controller features a critical open low action with a lockout manual reset mechanism, ensuring system safety by preventing automatic restarts after a limit trip. The unit is equipped with a 6 foot capillary for flexible sensing bulb