Install Instructions

Using a Temperature Well

If a Universal Sensor is mounted onto 1” (25 mm) diameter L type copper pipe, there

is approximately an 8 second delay between a sudden change in water temperature

and the time the sensor measures the temperature change. This delay increases

considerably when mild steel (black iron) pipe is used. In general, it is recommended

that a temperature well be used for steel pipe of diameter greater than 1-1/4” (32 mm).

Temperature wells are also recommended when large diameter pipes are used and fluid

stratification is present.

The Universal Sensor 071 and Universal Sensor Enclosure 080 are specifically designed

to mount onto a 3/8” (10 mm) ID temperature well that is supplied with an end groove. To

install the well, plumb a ‘T’ into the pipe and fix the well into the ‘T’. The 080 enclosure has

a 7/8” (22 mm) back knockout that must be removed and fitted over the temperature well.

The 071 is then inserted into the well and the retaining clip supplied with the enclosure

is snapped onto the well end groove. If the well has a threaded end, the installer must

supply a standard threaded conduit retaining ring. The two wires from the sensor are

connected to the terminal block provided in the enclosure. The other side of the terminal

block is used to connect wires from the control.