8
1-3
1-5
45
31
58
1-4
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.5 REMOTE CONTROLS AND
ROOM TIMER THERMOSTATS
OPTIONAL.
e boiler is prepared for the application of room
chronothermostats or remote controls, which are
available as optional kits (Fig. 1-3).
All Immergas timer thermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the acces-
sory kit.
• On/O digital chronothermostat. e 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/o dierential weekly
programs;
- to select the required operating mode from
the various possible alternatives:
• permanent functioning in comfort temp;
• permanent functioning in reduced temp;
• permanent functioning in adjustable anti-
freeze temp.
e timer thermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• Comando Amico Remoto
V2
Remote Control
Device (CAR
V2
) with climate timer thermostat
function. In addition to the functions described
in the previous point, the CAR
V2
panel enables
the user to control all the important informa-
tion regarding operation of the appliance and
the heating system with the opportunity of eas-
ily intervening on the previously set parameters
without having to go to the place where the ap-
pliance is installed. e panel is provided with
self-diagnosis to display any boiler functioning
anomalies. e climate chronothermostat in-
corporated into the remote panel enables the
system ow 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 in running costs. e 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
V2
must be used
with its climate thermostat function disabled, i.e.
it must be set to On/O mode.
Comando Amico Remoto remote control
V2
or On/Off timer thermostat electrical con-
nections (Optional). e operations described
below must be performed aer having removed
the voltage from the appliance. Any thermostat
or On/O environment chronothermostat must
be connected to clamps 40 and 41 eliminating
jumper X40 (Fig. 3-2). Make sure that the On/
O thermostat contact is of the “clean” type, i.e.
independent of the mains supply, otherwise the
electronic adjustment card would be damaged.
Any Comando Amico Remoto
V2
remote control
must be connected to clamps 40 and 41 elimi-
nating jumper X40 on the circuit board, paying
attention not to invert the connections (Fig. 3-2).
Important: if the Remote Friend Control
V2
,
remote control
V2
or any other On/O chrono-
thermostat is used arrange two separate lines in
compliance with current regulations regarding
electrical systems. No boiler pipes must ever be
used to earth the electric system or telephone
lines. Ensure elimination of this risk before mak-
ing the boiler electrical connections.
1.6 EXTERNAL PROBE OPTIONAL.
e boiler is prepared for the application of the
external probe (Fig. 1-4), which is available as an
optional kit. e probe can be connected directly
to the boiler electrical system and allows the max.
system ow temperature to be automatically de-
creased when the external temperature increases,
in order to adjust the heat supplied to the system
according to the change in external temperature.
e external probe always acts when connected
independently from the presence or type of room
thermostat used. e correlation between system
ow temperature and external temperature is de-
termined by the position of the selector switch on
the boiler control panel according to the curves
shown in the diagram (Fig. 1-5). e electric con-
nection of the external probe must be made on
clamps 38 and 39 on the boiler P.C.B. (Fig. 3-2).
Heating temperature user
adjustment position
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