The A19AAA-49 is an open-on-drop (open low) control

Applying higher voltage will result in immediate component failure and poses a safety risk

featuring an operating pressure range of 0 to 0

ensure the valve body is free of debris before installing these OEM replacement parts to ensure a proper seal and consistent psi output

Can I use this for hydronic radiant floor systems

Aprilaire 5456 Temp Sensor 326010-701 The A19AAA-49 is an open-on-dropThe Aprilaire 5456 Temp Sensor is a precision engineered High Temp Sensor designed specifically for integration with high performance HVAC ventilation controls and zoning systems. This critical HVAC diagnostic tool functions as a discharge air temperature sensor, monitoring thermal levels to prevent system overheating and ensure optimal airflow efficiency. By providing real time data to your Aprilaire model 6203 or compatible zone control panel, the