Do not mount the C7400S, C7250A “Grey Sensors”

directly against mounting surface.

We’ve found that sensors do not read the proper

temperature and humidity readings if they are mounted

directly on a surface. This is due to the radiant and

convective temperature coupling of the metal surfaces to

the sensor case, which causes the sensor to accurately

measure an average of the surface and the air. Use the

50053060-001 sensor mounting bracket if you apply

these sensors.

Address grey sensors via addressing settings before

installation.

Refer to this document and other technical information to

set these switches correctly before installation. If these

switches are not set correctly, the sensor will fail to

function properly.

Set jumpers and scale sensors.

It is essential to set physical jumper Honeywell current

sensors. You need to match this scaling, either via LCBS

Connect wall module or LCBS Connect Web UI. If you

don’t, CT output will read incorrectly.