Immergas MINI EOLO 24 3E, Instruction And Warning Book

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1-5
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1.5 REMOTE CONTROLS AND
ROOM CHRONO-THERMOSTATS
(OPTIONAL).
The boiler is prepared for the application of room
chrono-thermostats or remote controls, which
are available as optional kits (Fig. 1-4).
All Immergas chrono-thermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the accessory
kit.
• On/Off digital chrono-thermostat. The chrono-
thermostat allows:
- set two room temperature value: one for day
(comfort temperature) and one for night
(lower temperature);
- set a weekly programme with four daily
switch on and switch off times;
- selecting the required function mode from
the various possible alternatives:
- manual mode (with adjustable temperature).
- automatic mode (with set programme).
- forced automatic mode (momentarily
changing the temperature of the automatic
programme).
The chrono-thermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• Comando Amico Remoto Remote Control
Device
V2
(CAR
V2
) with climate chrono-
thermostat function. In addition to the
functions described in the previous point, the
CAR
V2
panel enables the user to control all the
important 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 chrono-thermostat 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 in
running costs. The chrono-thermostat is fed
directly by the boiler by means of the same 2
wires used for the transmission of data between
boiler and chrono-thermostat.
Comando Amico Remoto Remote Control
V2
or On/Off chrono-thermostat electrical
connections (Optional). The operations
described below must be performed after having
removed the voltage from the appliance. Any
thermostat or On/Off environment chrono-
thermostat must be connected to clamps 40 and
41 eliminating jumper X40 (Fig. 3-2). Make sure
that the On/Off thermostat contact is “dry”, i.e.
independent of the mains supply, otherwise the
P.C.B. would be damaged. Any Comando Amico
Remoto remote control
V2
must be connected 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
V2
or any other On/Off 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 making
the boiler electrical connections.
1.6 EXTERNAL PROBE (OPTIONAL).
The boiler is designed for the application of the
Room Thermostat (Fig. 1-5) which is available as
an optional kit. Refer to the relative instruction
sheet for positioning of the external probe.
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 outdoor temperature.
The external probe always acts when connected
independently from the presence or type of room
thermostat used. The correlation between system
flow temperature and outdoor temperature
is determined by the position of the selector
switch on the boiler control panel according to
the curves shown in the diagram (Fig. 1-6). The
electric connection of the external probe must be
made on clamps 38 and 39 on the boiler P.C.B.
(Fig. 3-2).
Position of the central heating temperature
user adjustment