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The gas supply pipe must be suitably dimensioned according to current regulations in order to guarantee correct gas flow rate to the burn-
er even in conditions of maximum generator output and to guarantee appliance efficiency (technical specifications).
The coupling system must conform to standards in force (EN 1775).
The appliance is designed to operate with fuel gas free from impurities; otherwise it is advisable to fit special filters upstream of
the appliance to restore the purity of the fuel.
Storage tanks (in case of supply from LPG depot).
- New LPG storage tanks may contain residual inert gases (nitrogen) that degrade the mixture delivered to the appliance casing func-
tioning anomalies.
- Due to the composition of the LPG mixture, layering of the mixture components may occur during the period of storage in the tanks.
This can cause a variation in the calorific value of the mixture delivered to the appliance, with subsequent change in its performance.
1.7 HYDRAULIC CONNECTION
In order not to void the condensation module warranty before making the boiler connections, carefully clean the heating sys-
tem (pipes, radiators, etc.) with special pickling or descaling products to remove any deposits that could compromise correct
boiler operation.
3 bar safety valve
The drain of the safety valve must always be properly conveyed to a draining funnel; consequently, in case of valve operation, the leaked
fluid will end up in the sewer system.
Condensate drain
To drain the condensate produced by the appliance, it is necessary to connect to the drainage system by means of acid condensate resist-
ant pipes, with an internal Ø of at least 13 mm.
The system connecting the appliance to the drainage system must be carried out in such a way as to prevent occlusion and freezing of the
liquid contained in it.
Before appliance ignition, ensure that the condensate can be correctly removed. After first ignition, check that the drain trap is filled with
condensate.
Also, comply with national and local regulations on discharging waste waters.
In the event condensate is not discharged into the wastewater drainage system, a condensate neutraliser must be installed to ensure com-
pliance with the parameters established by the legislation in force.
A treatment of the heating and water system water is required, in compliance with the technical standards in force, in order to protect the
system and the appliance from deposits (e.g. scale), slurry or other hazardous deposits.
In order not to void the heat exchanger warranty, you are required to comply with what has been prescribed (Par. 1.27).
Water connections must be made in a rational way using the couplings on the boiler template.
The manufacturer declines all liability in the event of damage caused by the installation of an automatic filling system.
In order to meet the system requirements established by EN 1717 in terms of pollution of drinking water, we recommend installing the
IMMERGAS anti-backflow kit to be used upstream of the cold water inlet connection of the boiler. We also recommend using category 2
heat transfer fluid (ex: water+glycol) in the boiler's primary circuit (C.H. circuit), as defined in standard EN 1717.
To preserve the duration of appliance efficiency features, in the presence of water whose features can lead to the deposit of lime
scale, installation of the “polyphosphate dispenser” kit is recommended .
1.8 ELECTRICAL CONNECTION
The appliance has an IPX5D protection degree; electrical safety of the appliance is achieved only when it is connected properly to an effi-
cient earthing system, as specified by current safety standards.