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PRODUCT DESCRIPTION
NRV is made up of independent 108kW modules that can be connected
to each other up to a power of 970kW. Each individual module is a cooler
for chilled water production to meet air conditioning requirements in
residential/commercial buildings or to meet refrigeration requirements in
industrial facilities.
High efficiency, energy saving, and reduced sound emissions allow this
range to meet the various requirements of the market.
ENERGY EFFICIENCY
Energy efficiency is an important requirement for new projects and redeve
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lopment of the existing ones.
The NRV series is one of the best solution, as it guarantees high energy effi
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ciency levels with EER values in class "A"
E
urovent, calculated in complian
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ce with European Standard EN14511.
MAXIMUM MODULARITY AND ADAPTABILITY
With NRV, it is possible
to couple up to 9 chillers designed to reduce the overall unit dimensions to
a minimum. Modularity that allows you to adapt installation to the actual
development needs of the system. This way the cooling capacity can be
increased over time simply and affordably.
Modularity is essential when component redundancy is required, as it
allows for a safer system design and increased reliability.
The modules are easy to install and connect to each other from a hydraulic
standpoint, thanks to the connections with grooved joints.
NRV is already equipped with a water filter, differential pressure switch
and butterfly check valves, useful to cut off the hydraulic circuit for main
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tenance; for instance, to clean the filter.
In the event of variable flow rate, the motorised hydronic valves can
intercept one or more modules to reduce the flow rate in low heat load
conditions.
EXTENDED OPERATING RANGE
This range can work at full load with outdoor temperature up to + 50°C.
This occurs in the high efficiency versions and also, for example, in versions
with silent operation. Therefore, their natural location is in urban centres,
where environmental requirements are strictly related to noise.
Furthermore, versions A and U can produce water cooled to -10°C.
STATE OF THE ART CONTROL
The controller with liquid crystal display is supplied as per standard with
all the units. It has a multilingual user interface, which is available also in
remote version (accessory) to be connected to the unit with serial connec
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tion.
The presence of an internal clock allows you to program the operation in
time periods in order to improve the system efficiency and reduce con
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sumption during periods of non-use.
This option (Night Mode) is perfect for night operation, since it guarantees
greater acoustic comfort in the evenings, and a high efficiency in the time
of greater load.
Night Mode is standard in the unit with J inverter fan and in the E silenced
version.
Either a DCPX or inverter fan is necessary for the High Efficiency version.
Systems consisting of two chillers allow the unit to be adjusted via (Master/
Slave), supplied as per standard. In case of several chillers through the Mul
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tichiller_PCO. The supervision is possible thanks to different options, with
proprietary devices or by integrating other systems via ModBus, Bacnet,
LonWorks etc. protocols.
Version with Desuperheater
Cooler complete with a desuperheater.
In this configuration a coolant/water heat exchanger is added on the
gas flow line. The exchanger is set in series before the condenser and is
appropriately sized to guarantee the recovery of part of the heat produced,
for the free production of hot water at a medium-high temperature for
domestic or other uses.
Summary of Contents for NRV 0550
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