Ferroli MACH Instrucciones De Uso página 340

Module maintenance
The modular structure of MACH allows maintenance or replacement of parts to be carried out on the individual internal
modules independently of each other.
Disconnect the unit from the power supply and close the gas cock (ref. 106 - fig. 89) of the module undergoing mainte-
nance. If necessary, drain the hydraulic circuit by connecting the hose connector pre-installed in the first module, using
a suitable rubber hose (not supplied), to a drain or a collection manifold, on the side outlet of the three-way cock (ref.
252 - fig. 89) located on the module return. Close the three-way cock (ref. 252) on the return in order to drain.
Once the maintenance operations have been carried out, proceed in reverse order, returning the three-way return cock
(ref. 252) to the "open" position.
IMPORTANT: At the end of the maintenance operations, before turning the unit on again, check that
A
all the module shutoff cocks are in the "open" position.
106
252
340
fig. 89
cod. 3541V120 - Rev 00 - 09/2021
MACH
fig. 90
EN