Where is the automatic control valve correctly positioned when installing a convector?

The automatic control valve is correctly positioned above the heating element when installing a convector because this placement allows for optimal thermal efficiency and effective operation of the heating system. Placing the valve above the heating element ensures that it can accurately sense the temperature of the rising hot water or steam, providing better control over the heating process and allowing for accurate regulation of flow based on the heating needs of the space.

When the valve is positioned above the heating element, it can respond effectively to changes in temperature, which helps maintain a consistent and comfortable environment. This positioning also minimizes the risk of air trapping in the system, which can occur if the valve is installed below the heating element, thus ensuring a smoother operation of the convector unit.

In contrast, positioning the valve below or at the side of the heating element can lead to ineffective temperature sensing and can complicate water flow control. Similarly, aligning it directly with the ductwork does not take full advantage of the heating element's thermal characteristics, potentially leading to inefficiencies in the heating system.