22
RF-SVX003A-GB
Note
The fl ow switch is factory calibrated with reference
to the minimum cut-out value. To increase this value,
turn the adjustment screw clockwise. The cut-out value
must be> = the minimum fl ow necessary to ensure the
protection of the system. The units without fi ttings will
be supplied with 4 paddles (see drawing palette), which
must be cut according to the pipe. On request they can
be supplied to all devices with the T-piece
WARNING! In case the unit is used as a minimum fl ow
controller must be placed downstream of a further
control device for the activation of the alarm condition.
Installing the fi lter
To ensure proper operation of the heat exchanger,
it is mandatory to install a fi lter on the input of the
evaporator near the unit (max 2 meters). The component
is required and must be mounted before making circular
adequate fl ow of water.
Flow switch installation
Electrical connection
Connect to the contact to the white and red of the microswitch (fi g. 1). The red-white contact opens when the fl ow
drops below the set value. In the absence of fl ow the contact red-blue closes and can be used as a contact signal or
alarm.
Screw for load control
TERRA
fi g. 1
