Beretta MYNUTE GREEN, Addendum, Page: 5 / 108

5
EN
CASCADE APPLICATION
Jobs to be done on the boiler and the basic operations to be carried
out on the cascade manager for relative programming are given
hereunder. See the instructions handbook supplied with the kit for
all the other operations on the manager device.
BOILER SETTING
To set the cascade mode do the following actions (refer to boiler
manual):
- remove the jumper on connection TA – boiler terminal board M6
- cut the jumper on C11 connection - fig. 4
- introduce a jumper in JP2 position
- verifi ty that jumper JP7 is absent
- position the“function selection” on (winter) position
BASIC OPERATIONS TO SET CASCADE CONFIGURATION
- Put into position and install the manager and communication
interface CoCo; we recommend installing the manager in a special
electrical board and also the CoCo or else in electrical boxes near
the boilers
- Wire up the CAN-BUS signal (manager-Coco) and OT signal
(CoCo – boiler) as shown in fig. 2
- Set the address switches of each CoCo interface as shown in fig. 2
- Wire up the “bridges” provided on the manager terminal board:
bridge from terminal 22 to 38, bridge on GND terminal board,
bridge on N terminal board and bridge on earth terminal board
(fig. 3)
- Insert the probe supplied with the manager into the pocket
provided on the hydraulic separator of the cascade system (use
conductive paste) and connect it to the specific terminals (2-GND)
on manager (fig. 3)
- Wire up all the connections of the system user devices if you
intend to manage them by the manager, following instructions in
the handbook.
Address 1 Address 2 Address 3 Address 4
fig. 2
fig. 3
230V~ : Relay contact carrying capacity 2(2)A, 250V~
Triac 1(1)A, contact carrying capacity 250V~
Connect a bridge towards
collective terminals
with the same potential
Connect a bridge from terminal 22 to 38