Hydraulic Connection - Alpha Pro Tec 48NX Design, Installation And Servicing Instructions

1.11 HyDraUlIc coNNEcTIoN

In order not to void the condensation module warranty, before making the device connections, carefully clean the heating
system (pipes, radiators, etc.).
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 in (Par. 1.11).
Chemical conditioning treatment is always required in relation to the quality of the water used in the water systems for winter heating,
with or without domestic hot water production, still following the provisions of the law in force.
Refer to the laws in force for the aforementioned treatments.
The manufacturer is not liable in case of damage caused by the absence of heat and water systems water treatment.
It is recommended to prepare a filter in the system to collect and separate any impurities present in the system (magnetic filter).
In order to avoid deposits, scaling and corrosion in the central heating system, the provisions set forth in the technical regulation in force
on water treatment in heating systems for civil use must be respected.
Hydraulic connections must be made in a rational way using the couplings on the appliance template.
4 bar safety valve
The drain of the safety valve must always be properly conveyed to a tundish; consequently, in case of valve operation, the leaked
fluid will end up in the sewer system.
Otherwise, the appliance manufacturer declines any responsibility in case of flooding if the drain valve cuts in.
The manufacturer declines all liability in the event of damage caused by the installation of an automatic filling system.
condensate drain
Condensate must be drained according to the laws in force.
To drain the condensate produced by the appliance, it is necessary to connect to the drainage system by means of acid condensate
resistant 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
compliance with the parameters established by the legislation in force.
Installation with system operating at direct low temperature
The appliance can directly feed a low temperature system.
The values of the "Zone 1 CH setpoint" and "Zone 2 CH setpoint"parameters define the maximum flow setpoint of the device; use these
parameters to define the maximum system flow setpoint.
The parameters "Zone 1 CH setpoint" and "Zone 2 CH setpoint" modifiable by the User are limited respectively by the parameters "Zone
1 maximum CH setpoint" and "Zone 2 maximum CH setpoint" modifiable only by the Technician (with password). Use the parameters
"Zone 1 maximum CH setpoint" and "Zone 2 maximum CH setpoint" to define the maximum system flow setpoint.
During the chimney sweep function, the boiler flow temperature is limited by the parameters "Zone 1 CH setpoint" and "Zone
2 CH setpoint" and the parameter "CH setpoint hysteresis". When using the 'System side flow sensor', the boiler flow
temperature is limited by the maximum permissible temperature (95°C).
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