8
Confi
Refer to section 3.3 to access the
INSTALLER PARAMETERS section.
The boiler is provided with the board
RS-485
that permits to manage up to 8
boilers in cascade and communication
in MODBUS. The board is placed on the
back of the control panel. Access the
g
n
it
a
r
e
p
o
d
e
ri
s
e
d
e
h
t
e
s
o
h
c
d
n
a
d
r
a
o
b
mode (CASCADE or MODBUS) by selec-
ting the DIP SWITCH of the board as
indicated in figure 4/a.
CASCADE mode (fig. 4/b)
Electrically connect all the boilers that
form the modular cascade thermal
system and set installer parameters PAR
15 on every single boiler as indicated in
fig. 4/b.
CASCADE WITH MORE
THAN TWO BOILERS
When more than two boilers are connected
in cascade, it is essential that the OEM
parameter on the “Master” boiler is reset
to coincide with the number of boilers in
the cascade.
This must be done after setting PAR 15 on
the designated Master boiler to “0”
On the “Master” boiler press any key to
wake up the display.
Then press simultaneously the
and
the
buttons for 5 seconds until the
display is as shown.
Then press again, simultaneously, the
and the
buttons for 2 seconds until
the display shows.
Next press, in the order shown
The display will be as shown.
Press the
button, and the display
will show.
Use the
and
buttons to set the
number of boilers in the cascade.
Then press
to confi rm the
settings.
DIP SWITCH
GESTIONE IN CASCATA
1
2
3
CASCADE MANAGEMENT
DIP SWITCH
GESTIONE IN MODBUS
MODBUS MANAGEMENT
1 2 3
ON
1 2 3
ON
x 2
Fig. 4/a
Summary of Contents for MURELLE GREEN PLANET 50 HE I
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