COSMOGAS ECOTWIN, Инструкция по установке, эксплуатации и обслуживанию

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ecotwin
COSMOGAS
6.10 - Radiant panel systems (or low
temperature)
WARNING!!! The system downstream of the
appliance must be made with materials that withstand
temperatures up to 95 ° C and a pressure of 3 bar.
Otherwise (e.g. pipes in plastic materials), the system
must be equipped with the appropriate protection and
safety devices.
WARNING !!! If the heat pump is installed in
a radiant panel system made with plastic pipes, all
precautions must be taken against corrosion due to
oxygenation of the water: make sure that the system is
carried out with plastic pipes having oxygen permeability not
exceeding 0.1 g / m3 at 40 ° C. If the pipe does not satisfy
these characteristics, it is essential to isolate the radiant panel
circuit from the heat pump by means of a plate heat exchanger.
6.11 - Domestic hot and cold water
Figure 3-1 shows the positioning of the domestic hot and cold
water pipes.
Provide a shut-off valve upstream of the cold water inlet, useful
for maintenance work.
WARNING!!! The domestic hot water circuit must
be made of materials resistant to a temperature of at least
95 ° C and a pressure of 7 bar. Otherwise (e.g. pipes made
of plastic materials) the system must be equipped with
the appropriate protective devices.
WARNING !!! If the appliance is connected to a
DHW recirculation circuit, a safety valve and an expansion
tank, suitably sized, must be installed to manage the
natural increase in water volume during the heating.
6.12 - Antilegionella
To minimize energy consumption, it is advisable to use hot
water preparation devices that avoid the storage of large
quantities of water. It is therefore recommended to use
tank with semi-rapid production or tanks with external heat
exchanger plate (“freshwater”). In this way the thermal shock
against legionellosis can be avoided. Refer to the hydraulic
diagrams of Figures from 5-4 to 5-10.
6 - INSTALLATION