Gruppo Imar IVY 24 MR/MN, Installation & Use Manual, Page: 37 / 44

35
INSTALLATION OF ROOM THERMOSTAT/OPEN THERM
It is recommended, and in many cases
mandatory, to connect the boiler to a
device which monitors and regulates the
temperature in the areas served by the boiler
itself. The purpose of this device is to create
the maximum comfort and maximum energy
savings possible.
The main heating area can be managed
both by a thermostat, and by a remote
control electronic device (Open-Therm)
named “EASY CONTROL”.
The appliance is supplied in TA Thermostatic
Control configuration; in order to activate
EASY CONTROL Open-Therm , it is necessary
to connect the OT timer thermostat.
For the correct installation of Room
Thermostat or EASY CONTROL Open-Therm,
refer to the instructions supplied by the
thermostat manufacturer.
To connect the Room Thermostat or EASY
CONTROL OpenTherm to the boiler it is
possible to use the supplied two-core cable
labelled “TA”.
The connection to the boiler PBC is the same
both for the Thermostat control and for
the EASY CONTROL Open-Therm (see wire
scheme at page 15, Connection x13).
Whenever necessary, replace the “TA” cable
and connect it directly to the slot present in
the PCB case as follows:
- Power the boiler off
- Remove the boiler iron cover by unscrewing
the 4 fastening clips
- Rotate the instrument panel in “Open”
position
- Remove the rear instrument panel cover by
unscrewing the 4 screws
- Identify the two-pole terminal board
located on the left-hand side of the PCB.
- Disconnect any cable which may be
present by loosening the terminal screws and
remove it completely - Connect the wires
from the thermostat cable to their respective
slots (Pict. 37)
- Run the cable and hold it in position with the
cable grip at the edge of the case
- Position the cable, running it under the
cable gripping tabs on the side of the case
- Close the case cover with the 4 screws,
paying attention that all the cables running
out of the case are correctly positioned
- Return the electrical panel to the
operational position (with the visible display)
COMPLETELY DISCONNECT THE DEVICE FROM THE ELECTRICITY SUPPLY BEFORE
PERFORMING ANY OPERATION. USE THERMOSTATS COMPATIBLE WITH THE BOILER.
Pic. 40
TA