19
Remote sensors
Flow sensor and water Sensors
A water fl ow sensor (WFC) (Figure 7) is supplied with each
master and slave unit, and must be installed in the fi eld.
The system water sensors (outlet RLWT & inlet REWT) (Figure 11)
comes with the master unit and must be installed in the fi eld.
The water outlet sensor (ULWT) (Figure 11) comes with each
unit, master and slave, and should be installed in the fi eld.
It is important to make sure that the RLWT and REWT sensors
are not reversed.
FIG. 7 - Sensor fl ow and connections
FIG. 8 - Mounting dimension of sensor rod
FIG. 9 - Flow sensor with glove
FIG. 10 - Sensor mounting position
Only install the fl ow and temperature sensors after the
welding of piping and components. Failure to observe this
recommendation can cause damage to components.
IMPORTANT
The fl ow sensor rod should be at least 12mm inserted in the
water fl ow (see Figure 8). If this dimension not observed,
there is the risk of triggering an alarm for lack of fl ow (E-34).
IMPORTANT
Dimensions in
mm
Flow sensor
Water outlet
temperature sensor
The glove used to connect the fl ow
sensor is provided with the unit.
It must be welded to the pipe as
shown below.
12
mm (minimum)
