61047 AERCO BOILER OUTSIDE AIR SENSOR

AERCO 61047 is the OEM Outside Air Sensor used for outdoor‑temperature monitoring in AERCO boilers and water heaters. Grounded search results confirm its identity, function, and installation requirements.

🔧 Core Identity & Function

Part Number: 61047 Component: Outside Air Sensor OEM: AERCO

This sensor measures outdoor air temperature and feeds that data to the boiler’s control system. It is used for:

• Indoor/Outdoor Reset Mode — adjusts boiler firing based on outdoor temperature to improve efficiency

• Enable/Disable Logic — boiler can be automatically enabled or disabled depending on outdoor temperature thresholds

• Combustion Optimization — helps the system adjust operation for energy management and performance

Liberty Supply confirms it is a dedicated outdoor air sensor designed to optimize combustion efficiency in AERCO systems.

📐 Technical & Installation Notes

From AERCO Benchmark documentation:

• Can be wired up to 200 ft (61 m) from the boiler

• Uses twisted shielded pair, 18–22 AWG

• Connects to OUTDOOR AIR and AIR SENSOR COMMON terminals

• No polarity required

• Shield connects only at the boiler end (not at the sensor)

These details make it a straightforward field‑install sensor.