ACV EVO S 100, Installation, Use And Maintenance Instructions, Page: 34 / 154

EVO S
, Installation, Commisioning and Servicing Instructions
EN
34
4.3.7. Condensate removal
Removal to the drains, via a drain hopper, using a P.V.C tube (minimum
diameter 32 mm) is mandatory because the condensates are acid and thus
aggressive (pH between 3 and 5).
Use a sufficient slope of the order of 3% to ensure correct flow of the
condensates.
IMPORTANT:
Neutralise these condensates before removal according to the current
regulations.
4.4. Gas connection
Before installing the boiler, clean the interior of the gas line, which must be
free of metal particles and welding debris. This will lengthen the lifespan of
the product.
Before starting up for the first time, check that the pressure of the natural gas
supply corresponds to the nominal boiler pressure, stated on the name plate.
The gas valve is fitted with an integrated filter (125µm), but this is not able to
retain all the impurities contained in the gas and in the mains pipes. To avoid
any malfunction of the gas valve, we advise the fitting of a suitable filter to
the boiler gas supply (50µm).
If the gas valve pressure tap is used, ensure that it is closed to avoid any
leakage while running.
Before feeding gas to the installation, ensure that the different connections
are correctly made and gas tight.
In particular check the presence of a removable connector between the
isolating valve and the boiler gas supply tapping.
The value before the gas valve must be within the limits shown in the table in
chapter 2.5 for the type of gas.
IMPORTANT:
Before connecting the gas line, check whether the boiler uses G20,
or G31 gas. If it uses G31, make the changes described in chapter 4.5 chapter 4.5
The gas line must not be subject to any mechanical stress (risk of
loss of gas tightness of the gas valve).
Check that the natural gas supply corresponds to the nominal boiler
pressure, stated on the information plate.