1.5 REMOTE CONTROLS AND
ROOM TIMER THERMOSTATS
(OPTIONAL).
The boiler is prepared for the application of room
chronothermostats or remote controls, which are
available as optional kits.
All Immergas timer thermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the acces-
sory kit.
• On/Off digital chronothermostat (Fig. 1-5). The
timer thermostat allows:
- to set two room temperature values: one for
day (comfort temperature) and one for night
(lower temperature);
- to set up to four on/off differential weekly
programs;
- to select the required operating mode from
the various possible alternatives:
• permanent functioning in comfort temp;
• p ermanent functioning in reduced temp;
• p ermanent functioning in adjustable anti-
freeze temp.
The timer thermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• Comando Amico Remoto
Remote Control
V2
Device
(CAR
) with climate timer ther-
V2
V2
mostat function. In addition to the functions
described in the previous point, the CAR
panel enables the user to control all the im-
portant information regarding operation of
the appliance and the heating system with
the opportunity of easily intervening on the
previously set parameters without having to
go to the place where the appliance is installed.
The panel is provided with self-diagnosis to
display any boiler functioning anomalies.
The climate chronothermostat incorporated
into the remote panel enables the system flow
temperature to be adjusted to the actual needs
of the room being heated, in order to obtain
the desired room temperature with extreme
precision and therefore with evident saving
On/Off digital timer thermostat
in running costs. The timer thermostat is fed
directly by the boiler by means of the same 2
wires used for the transmission of data between
boiler and timer thermostat.
Important: if the system is subdivided into zones
using the relevant kit. the CAR
with its climate thermostat function disabled, i.e.
it must be set to On/Off mode.
Comando Amico Remoto remote control
On/Off timer thermostat electrical connections
(Optional). The operations described below must
be performed after having removed the voltage
from the appliance. Any thermostat or On/Off en-
vironment chronothermostat must be connected
to clamps 40 and 41 eliminating jumper X40
(Fig. 3-2). Make sure that the On/Off thermostat
contact is of the "clean" type, i.e. independent of
the mains supply, otherwise the electronic adjust-
ment card would be damaged. Any Comando
Amico Remoto remote control
nected to clamps 40 and 41 eliminating jumper
X40 on the circuit board, paying attention not to
invert the connections (Fig. 3-2).
Important: if the Remote Friend Control, remote
control
or any other On/Off chronothermostat
V2
is used arrange two separate lines in compliance
with current regulations regarding electrical sys-
tems. No boiler pipes must ever be used to earth
V2
the electric system or telephone lines. Ensure
elimination of this risk before making the boiler
electrical connections.
1.6 EXTERNAL PROBE (OPTIONAL).
The boiler is prepared for the application of the
external probe (Fig. 1-7), which is available as
an optional kit.
The probe can be connected directly to the boiler
electrical system and allows the max. system
flow temperature to be automatically decreased
when the external temperature increases, in
order to adjust the heat supplied to the system
according to the change in external temperature.
Fig. 1-5
Fig. 1-7
The external probe always acts when connected
independently from the presence or type of
room thermostat used. The correlation between
system flow temperature and external tempera-
ture is determined by the position of the selector
switch on the boiler control panel according to
must be used
V2
the curves shown in the diagram (Fig. 1-8). The
electric connection of the external probe must be
made on clamps 38 and 39 on the boiler P.C.B.
or
V2
(Fig. 3-2).
must be con-
V2
Comando Amico Remoto remote control
ES
PT
GR
PL
TR
CZ
SI
HU
RU
RO
IE
SK
UA
(CAR
)
V2
V2
Fig. 1-6
247
Fig. 1-8