Flue Connection; Important - Ferroli QUADRIFOGLIO B Instrucciones De Uso, Instalación Y Mantenimiento

For connection in cascade
NOTE: The boiler's electronics can manage a maximum of 6 modules.
1. Connect the modules as shown in fig. 55 (example con 3 modules)
A
31 32 33 34 35 36 31 32 33 34 35 36
fig. 55 - Connection in cascade
A 1st Module
B 2nd Module
C 3rd Module
2. Make all the electrical connections (terminals 1 to 30) on module no. 1
3. On the remaining modules only connect the power supply and possibly the contacts
for: burner lit (300), fault contact (301) and remote reset input (302).
4. Switch on the power to the entire cascade
5. After the procedure "FH", check the 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. 55.
Settings
All adjustments must be made on all the modules.
Possible faults
If the electrical connection of a module is disconnected for any reason, module 1 will ac-
tivate fault F70.
If the electrical connection of a module is disconnected for any reason, the next module
will activate fault F71.
EN
B C
31 32 33 34 35 36
cod. 3541F572 - Rev. 01 - 09/2015
QUADRIFOGLIO B

3.6 Flue connection

Important

The unit is a B23-type with combustion air drawn from the installation room and fume ex-
haust by means of a fan (operation with flue pressurised), and must be connected to one
of the discharge systems indicated below. Before proceeding with installation, check and
carefully comply with the local regulations and provisions. Also, comply with the provi-
sions on the positioning of wall and/or roof terminals and the minimum distances from
windows, walls, ventilation openings, etc.
Manifold, ducts and flue must be suitably sized, designed and made in compliance with
the current regulations. They must be made of suitable materials, i.e. resistant to heat
and corrosion, smooth on the inside and tight. In particular, joints must be condensate
proof. Also, provide for adequate condensate drainage points, connected to a trap to pre-
vent the condensate formed in the flues from running into the generators.
B Every unit has two flue connections in order to offer greater flexibility in instal-
lation. Only use one of the outlets and make sure the other is properly plugged
(see fig. 56). In case of installation in bank with fume outlets connected to a sin-
gle flue or manifold a fume anti-backflow valve must be installed on each
outletto prevent operation faults or the occurrence of hazardous conditions.
Make sure to use the optional FERROLI kits, provided with special anti-back-
flow valves.
Before making the flue connection fill the condensate trap with approx. 0.5 litres
A
of water through the flue connections.
To calculate the maximum length of the fume ducts, refer to the maximum available head
indicated in table 3.
Table. 3 - Maximum flue pipe length
Model
"B 70"
Ø 80
Maximum flue head 200 Pa
fig. 56 - Fume outlet
Model Model
"B 125" "B 220"
Ø 100 Ø 160
200 Pa 200 Pa
Model
"B 320"
Ø 200
200 Pa