Menu
Temperature sensors are used to monitor space temperature continuously and provide information the building automation system (BAS). The BAS cannot maintain satisfactory control of the space temperature if it does not receive accurate readings from the space temperature sensors.
Location of the space temperature sensors has a direct effect on accuracy of monitoring the room temperature. The following suggestions for space temperature sensor installation have been collected form CFMS Consulting’s experience in buildings.
Unless the space temperature sensor has local adjustment, sensors should be installed at a height of the average person, 5 to 6 feet above the finished floor. The space temperature will be higher above that point and lower below. If the sensor is installed higher the occupants may be cold and likewise if it is installed lower the occupants may feel warm.
Temperature sensors measure the air temperature within few inches around the sensor. If a space temperature sensor is located behind doors or furniture, the air around sensors is not a correct representation of space temperature.
Sensors shall be installed to avoid direct influence from a heating source (e.g., cash register, office copiers, light dimmer switches, air diffusers, radiation and convectors) and cooling sources (e.g., cold room and air diffusers).
Sensors should not be installed on exterior wall surface to avoid inaccurate reading because of the outdoor air temperature and air penetration. If sensors have to be installed on exterior wall, provide conduit for sensors and seal all wall penetration to reduce air infiltration through the sensors.
Currently, there are some energy-efficient windows on the market, however, we recommend that space temperature sensors are not installed next to windows to avoid solar radiation and temperature transmission through the windows.
The best design is to dedicate a space temperature sensor for each room to monitor the room temperature. However, if a sensor has to be shared between two rooms these rooms should have similar conditions regarding exterior and interior walls, direction (e.g., north face), as well as heating and cooling requirements.
If one space temperature sensor monitors a big area, install the sensor close the area where there are occupants. For example install the sensor close a check-out area where the store staff work.
If you are looking for more information related to space sensor location and optimizing your Building Automation System, we have a lot more we can tell you than is covered in this blog – be sure to contact us!