2.7.4
Wiring diagram
KEY
EV1 Gas valve coil
EV2 Gas valve coil
EA
Ignition electrode
ER
Sensing electrode
TS
100°C safety stat
V
Fan
TPA Water pressure transducer
2.8
LOGICA REMOTE CONTROL
All the boiler's functions can be managed
by a optional digital multifunctional device
code 8092204 for the remote of the boi-
ler itself and for regulating room climatic
conditions with an operational reserve of
12 hours.
The heating circuit is controlled by the room
temperature sensor built-in the equipment
or by the atmospheric conditions, with or
without environmental inflow, if the boiler is
connected to an external sensor.
Characteristics:
– Ergonomic control unit divided according
to function (control levels)).
– Clear division of basic functions:
• operating regime, correction of set
value and presence button are directly
accessible;
• Dif ferent real current values are
accessible through the "info" button;
• other functions can be programmed
after the cover has been opened;
• special service level with protected
access;
– Each setting or modification is displayed
and confirmed.
VD
Motor-operated diverter valve
PI
Pump
SE
External sensor (optional)
TA
Room stat
SM C.H. sensor (blue)
TL
Limit stat
TRA Ignition transformer
TR
Transformer 230 - 24V
– Tome setting (special line for changing
BST/CET).
– Heating programme with max. 3 heating
periods per day, individually selectable.
– Copy function for easy transfer of hea-
ting programme to the next or pre-
vious day.
– Holiday programme: the programme is
interrupted for the holiday period and
automatically restarted on returning
home.
– Option to return the heating program to
default values.
– Programming lock (child safety).
Functions:
– Delivery temperature control guided by
the atmospheric conditions, taking into
account the dynamics of the building.
– Delivery temperature control guided by
atmospheric conditions with influence of
ambient temperature.
– Ambient temperature control only.
– Adjustable influence of ambient tempera-
ture shift .
– Switch-on and switch-off optimisation.
– Rapid lowering.
– ECO functions (daily heating limiter, auto-
matic summer/winter switch-over).
FL
Flowmeter
SS
D.H.W. sensor (red)
CR
Logica Remote Control (optional)
SV
Ventilator board
OP
Time programmer
Note: The room stat must be connected
to the terminals 5-6
– Controllable maximum delivery tempera-
ture limit (specifically for floor plants).
– Limitation of increase in pre-set delivery
temperature.
– Anti-freeze protection for buildings.
– Hourly programming of the tank unit
temperature on two levels: comfort and
reduced.
– Domestic hot water control with nominal
value requirement and enable.
– Connection to room sensor or switching
of operating regime through the telepho-
ne system with external contact or
through a window contact.
– Anti-bacterial.
2.8. 1
Installation
The unit must be installed in the main living
room. For installation, follow the assembly
instructions inserted in the package.
At this point, with the selector knob on ( ),
the installer can adjust the basic parame-
ters settings according to the individual
needs (point 2.8.2).
If there is a thermostatic radiator valve
fitted, this must be set to maximum.
Fig. 14
87