Wiring Diagram - Immergas 3.030908 Instruction And Warning Book

5

WIRING DIAGRAM.

CONNECTION DIAGRAM OF THE CONCENTRATOR TO THE BOILER TERMINAL BLOCK
6
Key:
1 - Wireless Concentrator
2 - Dominus (optional)
3 - External probe (optional)
4 - System delivery probe (optional)
5 - Low voltage connection terminal block
6 - Wireless room probe
Respect the polarity of the connections as requested on the connection diagram.
For the electrical connection of the concentrator, a special wiring is available in the kit, with which it is possible to secure the concentrator on the lower grid
of the boiler or in the immediate proximity.
If it is necessary to move the concentrator away from the boiler, we recommend the use of telephone-type 4-poles plugs (shielded if necessary), with a 4 x 0.25
mm diameter. In these conditions, the cables must keep a separate path from the 230V connections of the boiler electrical system.
For the "dislocated" connection of the concentrator it is possible to use, as an alternative to the connections on the boiler to terminals 24 and 25, an external
power supply (24Vdc) suitable for the electrical absorption characteristics.
N.B. For concentrator electrical connection:
The RS-485 network is a "daisy-chain" type network (also called in-out), i.e. where all the devices that insist on the network itself are connected in serial order.
In particular, the following points are highlighted:
• DO NOT use different types of cable to create the same grid, but always use the same type of cable only;
• The network cable must not be connected in ducts intended for cables with dangerous voltage (for example 230Vac) or carrying high currents, especially if in
alternating current. Also avoid parallel paths to these power cables;
• Connect the cable as stretched as possible, avoiding folds with small radii of curvature and even less wrapping it in useless skeins;
• Keep away from sources of electromagnetic field in particular from big mo-tors, switching cabinets, ballasts for neon, antennas of all types;
• Do not reverse the polarity "A+" and "B–" on the connection terminals.
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1
5
3
2
4
Colour code key:
BK - Black
BL - Blue
BR - Brown
G - Green
GY - Grey
OR - Orange
P - Purple
PK - Pink
R - Red
W - White
Y - Yellow
Fig. 19