Trane CXAO Installation Operation & Maintenance page 22

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.
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.
22
TERRA
fi g. 1
Screw for load control
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.
RF-SVX003A-GB