BRV ModvFlat Installation Instructions Manual

ModvFlat - Heat Interface Unit (HIU) - Thermostatic control - Heating and DHW
SAFETY:
inorder to avoid accidents and failures caused by an incorrect use of the product. Please keep this manual
for future consultations.
List and basic technical features of the main components
y
t
e
q
Please read carefully the mounting and the setting working instructions before starting the unit,
u
r
i
o
w
DHW Heating
circuit
Installation instructions
q - Isolation valves with sensor holder connection.
Equipped with check valve both on the water supply and
on the heating circuit return. 8 mm whidt control rod with
screwdriver slot. Thermometers 0÷120°C positioned on
DHW supply, heating circuit flow, and energy source flow.
w - Differential pressure by-pass valve with setting
a
range 1÷5 mH
e - Distance pieces for the possible insertion of a water
meter (3/4"x130 mm) on the water mains supply and of a
heat meter (1"x130 mm) on the return to the heat source.
r - Motorized diverter valve with heating priority. The
diverter is activated for DHW production by the flow swich
as soon as delivery of DHW is required.
t - Flow switch. It detects the flow of water already
starting from 1,5 L/min.
y - Large surface brazed plate heat exchanger in AISI
316 steel. It ensures an important heat exchange and can
e
be easily removed for any maintenance and/or cleaning.
Appropriately sized to produce DHW up to 30 L/min.
u - Thermostatic mixing valve with piston shutter for
the production of DHW, setting range 35÷60 °C.
- Thermostatic mixing valve with piston shutter to
i
control the low temperature heating circuit, adjustable
from 20 to 45 °C. For power up to 25 kW and flow rate up
to 1100 L/h.
o - High efficiency synchronous circulating pump
for the mixed circuit, compliant with European Directive
2009/125/EC. The circulator is always powered; possibly
manageable with room thermostat (not included in the
delivery).
a - Electrical connection box. The group is supplied
pre-wired. It is not necessary to intervene on the electrical
connections. A remote thermostat can be connected to the
box to control the circulating pump.
Boiler
/ Tank
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Rev.0 - 12/10/2022