Relative Humidity sensors
Carrier Sensors 39
Mounting location
Space RH sensor
• On an interior wall
• Approximately 5 feet (1.5 meters) from the floor, beside the space
temperature sensor
• At least 4 feet (1.2 meters) from any corner. Reduced airflow in corners
results in erratic sensor readings.
• Vertically so that the Carrier logo is correctly oriented
Do not mount the sensor:
• In drafty areas such as near heating or air-conditioning ducts, open windows,
or fans
• Over heat sources such as baseboard heaters, radiators, or wall-mounted
light dimmers
• In areas of excessive moisture, corrosive fumes, or vibration
Sensors mounted in these areas will produce inaccurate readings.
The sensor mounting plate accommodates the NEMA standard 4x2-in.
electrical box. However, the sensor can be mounted directly on the wall surface if
local codes permit.
Duct RH sensor The zone's return air duct
Outdoor RH sensor Where the sensor is protected from the elements and direct sunlight, such as
under an eave
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