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1.13 Boiler cascade configuration
POWER EVO-X can be inserted in a cascade control system from
2 to 4 boilers. Use the MB02 connector of the boiler board and the
X1 connector of the MSC board to make the connection between
the modules and the cascade manager.
The REC12 performs the system control function.
Program parameter P9.01 by setting it to a
value between 1 and 4. This value identi-
fies the unique address of the boiler in the
cascade system.
b
If two identical addresses are assi-
gned to the units by mistake, a communication error code will
appear on the display.
Once this operation has been carried out, with the boiler not in
heating request and after a few minutes, the display will show the
value of its address.
Refer to the REC12 manual to continue with system programming.
L - LINE
N - NEUTRAL
- EARTH
1.14 Accessing the parameters
Press the MENU button for at least 2 seconds to access menu P1,
where you can program the parameters. The first item of the menu
will appear on the display.
Access to parameter programming of the TECHNICAL menu is
protected by a password; by pressing MENU again for at least 2
seconds, the letters PWD will flash for 2 seconds (0.5 sec ON and
0.5 sec OFF).
The 4-digit area will now show <<0000>> flashing (0.5 sec ON and
0.5 sec OFF). The
,
enter the password.
N 2
GND (BLACK)
B (YELLOW)
A (ORANGE)
,
and
icons light up so you can
When the boiler is identified as part of a cascade system, some
functions/displays are simplified or inhibited:
ƒ the boiler works only in HEATING ONLY mode
ƒ the local thermoregulation functions are disabled
ƒ the SUMMER and WINTER states are disabled
ƒ the direct management of the HEATING SETPOINT is disabled
the heat request arrives only from the external system in the
form of a percentage of power supplied by the boiler (percenta-
ge in relation to the MAXIMUM to MINIMUM programmed in the
single boiler)
ƒ in addition to the traditional rules, the management of boiler ven-
tilation can also be managed directly by the external system
ƒ disabling the screed warmer function
ƒ disable OPENTHERM channel (OT +).
VEN
12:17
VEN
12:17
STATO
REC12
1
2
P
B
11 GND
12 A
13 B
MB02
There are two parameter access levels:
INSTALLER
SERVICE
(user level requires no password).
Use the buttons next to the
supplied by the manufacturer for the required access level.
Press button A next to the
By pressing button B next to the
and return to the previous level.
It is now possible to navigate the menu using the arrow buttons C
and D, confirming access to a sub-menu with the arrow button A or
by returning to the previous level using the arrow button B .
Press and hold (>2 sec) the
stop navigating and return to the main screen.
The interface automatically returns to the main screen if no buttons
are pressed for 60 seconds.
20
A
B
GND
1
+24V
SB
---
---
SB
SE
SE
COMMON SS/SP
SP
SS
---
1
---
MSC
X3
X4
+24V (RED)
GND (BLACK)
B (YELLOW)
A (ORANGE)
arrows to enter the password
arrow to confirm.
arrow, you can quit menu P1
button at any point if you want to
X1
X2
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