A sub-base of a thermostat should be mounted in which orientation?

A sub-base of a thermostat should be mounted in which orientation?

• A. Level
• B. Angled
• C. Vertical
• D. Horizontal

Answer: (A)

Level mounting of the sub-base keeps the thermostat flush against the wall and ensures the internal components and display are properly aligned. When the base is level, the cover fits correctly, wiring stays secure, and the temperature sensor (even in some models that rely on gravity with a tilt switch) reads as intended. Angled or tilted bases can make the unit look crooked, stress screws and wiring, and potentially affect the sensor’s orientation. The thermostat is designed to be mounted level, so this orientation gives the most accurate readings and longest-lasting installation.

Level mounting of the sub-base keeps the thermostat flush against the wall and ensures the internal components and display are properly aligned. When the base is level, the cover fits correctly, wiring stays secure, and the temperature sensor (even in some models that rely on gravity with a tilt switch) reads as intended. Angled or tilted bases can make the unit look crooked, stress screws and wiring, and potentially affect the sensor’s orientation. The thermostat is designed to be mounted level, so this orientation gives the most accurate readings and longest-lasting installation.