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1.6 REMOTE CONTROLS AND
ROOM CHRONOTHERMOSTATS
(OPTIONAL).
The boiler is prepared for the application of room
chronothermostats or remote controls, which are
available as optional kits. (Fig. 1-3)
All Immergas chronothermostats can be con-
nected with 2 wires only. Carefully read the
user and assembly instructions contained in the
accessory kit.
• On/Off digital chronothermostat. The chrono-
thermostat allows:
- to set two room temperature values: 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 operation (with adjustable tempera-
ture).
- automatic operation (with set programme).
- forced automatic operation (momentarily
changing the temperature of the automatic
programme).
The chronothermostat is powered by two 1.5V
LR 6 type alkaline batteries.
• Comando Amico Remoto Remote Control De-
vice
V2
(CAR
V2
) with climate chronothermostat
function. In addition to the functions described
in the previous point, the CAR panel
V2
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. The panel is provided with
self-diagnosis to display any boiler functioning
anomalies. The climate chronothermostat in-
corporated 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 chronothermostat
is fed directly by the boiler by means of the
same 2 wires used for the transmission of data
between boiler and chronothermostat.
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/Off mode.
Comando Amico Remoto remote control
V2
or On/Off chronothermostat electrical con-
nections (Optional).
The operations described
below must be performed after having removed
the voltage from the appliance.
Any thermostat
or On/Off environment 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 adjustment card would be damaged.
Any Comando Amico Remoto remote control
V2
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 Comando Amico Remoto
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 mak-
ing the boiler electrical connections.
1.7 EXTERNAL PROBE (OPTIONAL).
The boiler is prepared for the application of the
external probe (Fig. 1-4), 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.
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 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). The electric con-
nection of the external probe must be made on
clamps 38 and 39 on the boiler P.C.B. (Fig. 3-2).
1.8 VENTILATION OF THE ROOMS.
In the room in which the boiler is installed it is
necessary that at least as much air flows as that
requested for by normal combustion of the gas
and ventilation of the room. Natural air flow must
take place directly through:
- permanent openings in the walls of the room
to ventilate that lead towards the outside;
- condotti di ventilazione, singoli oppure collet-
tivi ramificati.
The air used for ventilation must be withdrawn
directly from outside, in an area away from sourc-
es of pollution. Natural air flow is also allowed
indirectly by air intake from adjoining rooms. For
further information relative to ventilation of the
rooms follow that envisioned in the regulation.
Evacuation of foul air.
In the rooms where the
gas appliances are installed it may also be neces-
sary, as well as the intake of combustion agent air,
to evacuate foul air, with consequent intake of a
further equal amount of clean air. This must be
realised respecting the provisions of the technical
regulations in force.
Position of the central
heating temperature user adjustment
Summary of Contents for MINI NIKE 24 4 ERP
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