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R1K 120 - RAD - ING - Manuale - 2201.1_SKM1_no_INAIL_firm.L226F
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1. INSTALLATION
INST
ALLER
1.1.12. HYDRAULIC CONNECTION
DANGER
Make sure that the water and heating pipes
are not used as grounding system for the electrical
plant. They are not suitable for such use.
WARNING
To prevent voiding the warranty and
ensure proper operation of the boiler, please wash the
system (if possible when hot) with suitable pickling or
descaling solutions in order to remove the impurities
coming from pipes and radiators.
WARNING
If the boiler is installed in a hydrostatic
position lower than those of the connected devices
(radiators, fan coils, etc.), install the shut-off valves
on the D.H.W. and heating circuits to ease the
performance of the maintenance operations, if it is
necessary only to empty the boiler.
WARNING
When connecting the boiler to water
supply, avoid excessive bending and recovery
operations from any off axis positioning that may
damage the pipes causing leaks, malfunction or
early wear.
WARNING
In order to avoid any vibrations and noises,
do not use pipes with small diameters or elbows with
small radius and significant cut-off of the passage
sections.
WARNING
Connect the boiler safety drains to a
discharge funnel. The manufacturer is not responsible
for any floods due to safety valve opening in case of
plant overpressure.
D.H.W. CIRCUIT
In order to prevent limestone build-up and damages
to the D.H.W. heat exchanger, the hardness of the
domestic supply water should not exceed 15 °f.
However, please check the characteristics of the
water used and install suitable treating devices.
The heat exchanger coil cleaning frequency
depends on the hardness of the supply water and on
the presence of solid residues or impurities inside
the water that are often present in case of recently
installed plants. Based on the characteristics of
the inlet water, the installation of suitable water
treating devices is recommended, for residues
presence please install a line filter.
The pressure of the cold inlet water should be
between 0.5 and 6 bar. In case of higher pressure
values, please install a pressure reducer upstream
from the boiler.
HEATING CIRCUIT
In order to avoid any scale or deposits on the
primary exchanger, the hardness of the heating
circuit inlet water should not exceed 25 °f. However,
please check the characteristics of the water used
and install suitable treating devices.
This treatment is mandatory if frequent episodes
of return water or partial or total emptying of the
plant occur.
WARNING
In case the boiler is installed as part of
a low temperature circuit, please install a safety
thermostat on the heating flow, which can stop
the boiler activity in case of high heating flow
temperature. The company assumes no liability for
damages caused to persons or property for failure to
comply with these instructions.
Summary of Contents for R1K 120
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