Wiring Diagram - Immergas MINI EOLO X 24 3 E Instructions And Warnings

3.5

WIRING DIAGRAM.

3
Key:
B1 - Flow probe
B2 - Domestic hot water probe (optional)
B4 - External probe (optional)
CAR - Comando Amico Remoto remote control
V2
Version 2 (optional)
DS1 - Display
E3 - Ignition and detection electrodes
E4 - Safety thermostat
F1 - Phase fuse
M1 - Boiler pump
M20 - Fan
M30 - Motorized three-way valve
R8 - Storage tank resistance
S2 - Selector switch functioning
S3 - Reset block keys
S4 - Domestic hot water flow switch
S5 - System pressure switch
The boiler is designed for application of a room thermostat (S20),
an On/Off room chronothermostat, a program timer or a Coman-
do Amico Remoto remote control (CAR
V2
40 - 41 eliminating the jumper X40, paying attention not to invert
the polarity if the CAR is installed.
V2
Cylinder unit: the boiler is prepared for the application of a stor-
age tank unit, which must be connected to clamps 36 and 37 of
the bipolar terminal board positioned under the sealed chamber,
eliminating resistance R8.
2
S6 - Flue gas pressure switch
S20 - Room thermostat (optional)
S21 - Domestic hot water temperature
increase key
S22 - Domestic hot water temperature
reduce key
S23 - Heating temperature increase key
S24 - Heating temperature reduce key
T1 - Low voltage feeder
T2 - Switch-on transformer
U1 - Rectifier inside the gas valve
connector (Only available on
Honeywell gas valves)
X40 - Room thermostat jumper
Y1 - Gas valve
Y2 - Gas valve modulator
). Connect to clamps
V2
1
1 - User interface
2 - N.B.: The user interface is on the
3 - 230 Vac 50Hz power supply
4 - Blue
5 - Brown
6 - Yellow/Green
7 - Black
8 - (DHW)
9 - (central heating)
10 - Grey
11 - White
12 - Red
13 - Green
14 - Storage tank unit (optional)
The connector X3 is present in the boiler but must be connected
only if the storage tank unit is present.
The connector X8 is used for the connection of the Virgilio Palm-
top in the microprocessor software updating operation.
The DHW probe must be connected to terminals 36 and 37 elim-
inating the resistence R8.
14
welding side of the boiler board
37
39