Gas Connection - Ferroli MACH Instrucciones De Uso

- Parameters
Each system requires a different parameterization. Follow the access procedure given below.
"Configuration - Parameters Menu"
Check/Change parameter b02 of the "Configuration - Parameters Menu" to 9.
Check/Change parameter b08 of the "Configuration - Parameters Menu" to 1.
Check/Change parameter b04, b05 and b06 of the "Configuration - Parameters Menu" according to the values given
in the table "Configuration - Parameters Menu" on page 334 .
- Parameters FZ4B
See relevant manual in Kit.
- Optional features
In addition to the electrical connections of the previous figure (necessary for this system configuration) there are options
that do not require settings.
Legend (fig. 52)
301 Fault indication (voltage-free contact output): the
example shows the connection of a 230Vac
lamp
302 Remote reset input (230Vac): the example
shows the connection of a double-pole switch at
230Vac, allowing the resetting of a block type
fault
357 Fault indication (230Vac): the example shows
the connection of a 230Vac lamp

2.4 Gas connection

Before making the connection, check that the unit is arranged for operation with
B
the type of fuel available and carefully clean all the system gas pipes to remove
any residues that could affect proper functioning of the boiler.
Make sure all the gas connections are tight. The gas meter capacity must be suitable for the simultaneous use of all the
units connected to it. The diameter of the gas pipe leaving the boiler is not decisive for choosing the diameter of the pipe
between the unit and the meter; it must be chosen according to its length and pressure losses, in conformity with the
current regulations.
Do not use the gas pipes to ground electrical appliances.
B
322
1 2 3
L N
19 20 21 22 23 24 25 26 27 28 29 30
cod. 3541V120 - Rev 00 - 09/2021
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
302
301
fig. 52
MACH
357
N L
EN