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

QUADRIFOGLIO B
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. 55 (example with 3 modules)
fig. 55 - Connection in cascade
A 1st Module
B 2nd Module
C 3rd 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. 55.
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 ac-
tivate fault F70.
If the electrical connection of a module is disconnected for any reason, the next module
will activate fault F71.

3.6 Flue connection

Important

The unit is a B23-type with combustion air drawn from the place of installation, and fume
exhaust 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 pro-
visions 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.
Connection
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).
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
Maximum flue head
cod. 3541F574 - Rev. 00 - 09/2017
fig. 56 - Fume outlet
Model Model Model
"B 70" "B 125" "B 220"
Ø 80 Ø 100 Ø 160
200 Pa 200 Pa 200 Pa
EN
Model
"B 320"
Ø 200
200 Pa
77