Informative data act
Project focus
Product overview
R454B supporting documents
NX-G06 0614T - 1214T
Outdoor unit for the production of chilled water with hermetic rotary Scroll compressors, low-GWP and ozone-friendly refrigerant R454B, axial-flow fans, shell and tube heat exchanger, micro-channel full-aluminum air coils and thermostatic or electronic expansion valve, depending on the model. The range is composed of units equipped with four compressors in tandem configuration on two independent refrigeration circuits.
EUROPE
CE
50 Hz
Topic overview
Product features
Features
LOW GWP REFRIGERANT
The new generation refrigerant R454B is the most eco-sustainable alternative to traditional refrigerant R410A, offering a 76% reduction in terms of GWP (Global Warming Potential GWP of R454B = 467, GWP of R410A = 1924 as per IPCC rev. 5th) and zero impact on the ozone layer.
CLASS A EFFICIENCY
The full range is available with a Class A efficiency rating. Thanks to the generous sizing of the heat exchangers and an accurate control of the fan speed, the CA version grants a premium level efficiency in every noise configuration.
ALUMINIUM MICRO-CHANNEL HEAT EXCHANGERS
The full aluminium micro-channel condenser coils deliver high efficiency while ensuring a reduced refrigerant volume and a lower unit weight. The e-coating protection (optional) grants the highest level of corrosion resistance in any condition, even in the most aggressive environments.
ELECTRONIC EXPANSION VALVE SUPPLIED AS STANDARD
The use of the electronic expansion valve generates considerable benefits, especially in cases of variable demand and different external conditions. It has been introduced to these units as a result of accurate design choices concerning the cooling circuit and the optimization of operation in various different working conditions. The electronic expansion valve comes standard in the high-efficieny CA version, optional for the compact K versions.
WIDE OPERATING RANGE
Full load operation is ensured with outdoor air temperatures up to 46°C, partial load operation is possible up to or even beyond 50°C. The unit can produce chilled water at negative temperatures (down to -10°C leaving water temperature). Dedicated accessories allow unit operation down to -20°C outdoor air temperature.
SHELL&TUBE HEAT EXCHANGER
The shell and tube exchanger provides the highest flexibility for the unit’s installation, keeping the pressure drops on the hydronic side at a minimum, thus representing the best choice for all the hydronic applications.
INTEGRATED HYDRONIC GROUP
The optional built-in hydronic module already contains the main water circuit components; available with single or twin in-line, for achieving both low or high head.
Produkt-Informationen
Produkt-Informationen- K - Standard efficiency
- SL-K - Super low noise, standard efficiency
- LN-K - Low Noise, Key efficiency, and compact version
- CA - Class A efficiency
- LN-CA - Low Noise, Class A efficiency
- SL-CA - Super Low noise version, Class A efficiency
- - - Basic function
- D - Partial condensing heat recovery function
- Microchannel coils with e-coating protection
- Traditional coils with copper tubes and alluminium fins, also available with prepainted fins or Blygold PoluAl XT protective treatment.
- Copper-Copper heat exchanger coils
- Compressor power factor correction
- Soft start
- Compressor suction and discharge valves
- High and low pressure gauges
- DVVF and DVV2F devices for low air temperature operation
- Anti-intrusion grills
- EC fans with DC brushless motor
- Hydronic kit available in different configurations with 1 or 2 fixed or variable speed pumps and buffer tank
Electronic control W3000TE
The W3000TE controller offers advanced functions and algorithms.
The Compact keypad features an easy-to-use interface and a complete LCD display that allows consulting and intervening on the unit by means of a multi-language menu (19 languages are available).
The regulation is based on the patented “Quickmind” water temperature regulation logic uses self-adapting control to maintain flow temperatures and optimise performance even in low water content scenarios. As an alternative, the proportional or proportional-integral regulations are also available.
The diagnostics comprises a complete alarm management system, with the “black-box” (via PC) and the alarm history display (via display or also PC) for enhanced analysis of the unit operation
Optional proprietary devices can perform the adjustment of the resources in systems made of several units. Consumption metering and performance measurement are possible as well.
Supervision can be easily developed via proprietary devices or the integration in third party systems by means of the most common protocols as ModBus, Bacnet, Bacnet-over-IP, LonWorks.
Compatibility with the remote keyboard (up to 8 units).
The defrosting (air source reversible unit only) follows a proprietary self-adaptive logic, which features the monitoring of several operational parameters. This allows to reduce the number and duration of the defrost cycles, with a benefit for the overall energy efficiency.
