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2.8
TUBES CONNECTING THE
HYDRAULIC SEPARATOR KIT
(fig. 7)
SIME provides the tubes connecting the
hydraulic separator kit code 8101534 for
installations with left-hand side attach-
ments.
The kit is made up of the following compo-
nents (fig. 7):
– System supply flanged section code
6291965
– System return flanged section code
6291965
– Gaskets, nuts and fastening screws M16
– Expansion vessel 8 liters code 6245108
(Preload pressure 1.5 bar – Maximum
pressure 10 bar) and connection pipe
code 6227661.
WARNING: In models "100-150 BOX (M)"
the tubes connecting hydraulic separator
kit can be inserted in a specific protective
box code 8101517 supplied separately.
2.9
RS-485 BOARD
(fig. 8)
Each module is supplied with the RS- 485
board which allows you to manage the boi-
lers in sequence/cascade.
2.9. 1
MODBUS mode
(fig. 8/a)
This mode allows for MODBUS communica-
42
tion of at least two boilers in cascade and is
performed by requesting another RS-485
board provided in the kit code 8092244.
ATTENTION: Communication will occur
only with the MASTER boiler, (boiler with
PAR 15 = 0), interpreting the cascade as
a single heat capacity generator:
P
= P
x No.
CASCADE
BOILER
BOILERS
To install the second board, proceed as fol-
lows:
- Remove the cover and electrically con-
nect the second RS-485 board equipped
with lid to the RS-485 board already
installed in the MASTER boiler (boiler with
PAR 15 = 0) with the wired connector
provided in the kit.
CAUTION: Insert the wired connector
with caution.
- Set the DIP SWITCH of the new board in
.
MODBUS mode.
- Close the lid of the second board.
- Choose the communication configuration
suited to the MODBUS network (PAR 17
INST) according to Table PAR 17 INST.
x 2
Fig. 7
Fig. 8
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