Remote Control
You can control the unit remotely in three different ways:
Free contacts reported in customer terminal block (X);
Bus protocol;
Remote keypad
Remote Control via Free Contacts
On the customer terminal block (X) are reported free terminals where you can connect any type of
thermostat able to provide a current pulse to close the relay to active the unit, and any boards to read
an alarm state.
For the water-water and air-water versions without water kit on board, there are also terminals for en-
abling of the pumps.
These contacts are usually free contacts normally open.
Here below there is an example of the customer terminal block, however see the wiring diagram at-
tached to the unit.
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