FORCE W
For cascade connection
NOTE: The boiler's electronics can manage up to a maximum of 6 modules.
1. Connect the modules as shown in fig. 56 (example with 3 modules)
A 1st Module
B 2nd Module
2. Make all electrical connections (terminals 1 to 30) on Module 1
3. On the remaining modules, only connect the power supply and possibly the contacts relevant to: burner lit (300),
fault contact (301) and remote reset input (302).
Remove the jumper relevant to: Room Thermostat (72)/Remote Timer Control (139).
4. Supply electric power to the entire cascade
5. After the "FH" procedure, check correct operation of the cascade:
•
Module 1: MASTER icon
•
Module 2: SLAVE icon
•
Module 3: SLAVE icon
If this does not occur, disconnect the power supply and check the wiring in fig. 56.
Settings
All adjustments must be made on all the modules, whereas Time Programming must be set only on Module 1.
Possible faults
If the electrical connection of a module is disconnected for any reason, module 1 will activate fault F70.
If the electrical connection of a module is disconnected for any reason, the next module will activate fault F71.
EN
fig. 56 - Connection in cascade
C 3rd Module
cod. 3541V232 - Rev 00 - 08/2021
243