Immergas HYDRO 3 V2 User Manual page 56

TERMINAL BLOCK DIAGRAM
For wiring, refer to the wiring diagram for the indoor unit.
The power cable must be H05RN-F or higher with a mini-
mum section of 1.5 mm .
2
Input preset for Hydro disabling.
The Hydro board requires an optional remote system dis-
abling command; to use this function, you must connect
the cable supplied with the unit, to the CN3 connector, as
indicated in the wiring diagram of Fig. 3 (the command must
be supplied with a clean contact. If the contact is open, the
system is controlled by the remote control; if the contact is
closed, the unit remains forcibly off).
Make sure that the power supply is disconnected to connect
the wiring. Then access the P.C.B. found below the termi-
nal block area; access it by removing the front panel and
removing the screws from the cover of the box containing
the P.C.B..
Once the supplied wiring has been connected, it will be
possible to close the board compartment and then connect
the cable to the command, using terminals that are not
supplied, to disable the
On/Off command from Hydro device.
Potential free contact, supplied by Hydro, with a max charge
of 700 mA.
The contact is closed if there is a request for hot/cold/dehu-
midification on the Hydro.
The contact remains open in the absence of requests.
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