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Unit with low environmental impact and
reduced refrigerant charge
Electronic expansion valve (optional)
Extensive range of operation
Contributes to achieving LEED points
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NX_0614P_1214P_201211_EN
(The photo of the unit is purely indicative and may vary depending on the model)
Climaveneta Technical Bulletin
0614P - 1214P Air-source liquid chiller for outdoor installation,
with plate heat exchanger165 ÷ 327 kW
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SUMMARY
Waiver of liabilityThis publication represents a preliminary document, and is thesole property of Climaveneta. Any reproduction or disclosure ofsuch is strictly prohibited without the written authorisation of Cli-maveneta.This document has been prepared with maximum care andattention paid to the content shown. Nonetheless, Climavenetawaives all liability deriving from the use of such document.Read this document carefully.
All work must be performed, components selected and materi-als used professionally and in complete accordance with thelegislation in force in material in the country concerned, andconsidering the operating conditions and intended uses of thesystem, by qualified personnel.The data contained in this publication may be changed withoutprior notice.
HFC 410ANX_0614P_1214P_201107_EN2
1. CERTIFICATION LEED p. 3
2. DESCRIPTION OF THE UNIT 4
3. MODELS AND VERSIONS 43.1 Compact versions with standard efficiency 4
4. HOW TO SELECT THE NX 5
5. GENERAL CHARACTERISTICS 6
6. FUNCTIONS 6
7. VERSIONS 7
8. TECHNICAL SPECIFICATIONS 8
9. ACCESSORIES 10
10. TECHNICAL DATA10.2 NX /K General technical data 1110.4 NX /LN-K General technical data 1210.6 NX /SL-K General technical data 13
11. OPERATING LIMITS 14
12. ETHYLENE GLYCOL MIXTURE 16
13. FOULING FACTORS 16
14. HYDRAULIC DATA 17
15. HYDRONIC GROUP (Optional) 21
16. ELECTRICAL DATA 29
17. FULL LOAD SOUND LEVEL 30
18. DIMENSIONAL DRAWINGS 34
This company participates in the Eurovent Certifi cation Programme.The products are listed in the Directory of certifi ed products.Eurovent certifi cation applied to units with cooling capacity up to 1500 kWfor air cooled water chillers and water cooled liquid chillers.
Company quality system certified to UNI EN ISO 9001
and environmental certification UNI EN ISO 14001
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1. CLIMAVENETA, THE MOST PROFITABLE WAY
TO IMPROVE THE LEED CERTIFICATION OF
YOUR BUILDING
Climaveneta is a Green Building Council Italy member andactively supports the diffusion of LEED practice all around theworld.Climaveneta High and Premium efficiency products and sys-tems are designed with special care to LEED protocol compli-ance and can help to achieve and improve the LEED certifica-tion of the building.In particular Climaveneta High and Premium efficiency productsand systems meet the LEED prerequisites for Energy & Atmos-phere (EA) and Indoor Environmental Quality (EQ) and canhelp to gather LEED points with regard to following areas:
ENERGY & ATMOSPHERE (EA)24 HVAC related LEED NC (New Construction and major Reno-vation Projects) points possible:• EA Prerequisite 2 – Minimum Energy Performance• EA Prerequisite 3 – Fundamental Refrigerant Management• EA Credit 1 – Optimize Energy Performance - 1 to 19 Points• EA Credit 4 - Enhanced Refrigerant Management - 1 to 2
Points• EA Credit 5 – Measurement & Verification – 1 to 3 Points
INDOOR ENVIRONMENTAL QUALITY (EQ) 6 HVAC related LEED points possible• EQ Prerequisite 1 – Minimum Indoor Air Quality Performance• EQ Credit 1 – Outdoor Air Delivery Monitoring – 1 Point• EQ Credit 2 – Increased Ventilation – 1 Point• EQ Credit 5 – Indoor Chemical & Pollutant Source Control – 1
Point• EQ Credit 6.2 – Controllability of Systems: Thermal Comfort –
1 Point• EQ Credit 7.1 – Thermal Comfort: Design – 1 Point• EQ Credit 7.1 – Thermal Comfort: Verification – 1 Point
There are already several buildings LEED certified also thanksto Climaveneta HVAC systems. For more information, browsethe project list at www.climaveneta.com.
4NX_0614P_1214P_201107_EN HFC 410A
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2. DESCRIPTION OF THE UNIT
NX/K: NEW COMPACT LIQUID CHILLERSNX is the new Climaveneta liquid chiller, available in the new Kversion, combining the two main features of this unit: efficiencyand compactness.NX in fact achieves excellent levels of energy efficiency while atthe same time occupying less area, making this unit the bestsolution in all installations where there is limited space avail-able. Along with its compact dimensions, NX also comes in three ver-sions with different sound emission ratings, so as to comply withthe strictest installation requirements.The LN and SL versions reduce noise levels by up to 10dB(A)compared to the most compact version, making the NX the ide-al solution for satisfying the most demanding installation needsnot only in terms of efficiency and compactness, but also lownoise.This ensures maximum installation flexibility, an essentialrequirement when operating in restricted spaces or whenreplacing or upgrading existing systems.
3. MODELS AND VERSIONS
3.1 Compact versions with standard efficiency
NX/K: liquid chiller with standard efficiency, compactversion
NX/LN-K: liquid chiller with standard efficiency, compactand low noise version
NX/SL-K: liquid chiller with standard efficiency, compactand Super low noise version
NX/D /K: liquid chiller with standard efficiency, compactversion, including desuperheater for partialrecovery of the heat of condensation
NX/D /LN-K: liquid chiller with standard efficiency, compactand low noise version, including desuper-heater for partial recovery of the heat of con-densation
NX/D /SL-K: liquid chiller with standard efficiency, compactand Super low noise version, including desu-perheater for partial recovery of the heat ofcondensation
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4. HOW TO SELECT THE NX
NX /KCompact standard efficiency version
Standard version NX /K
Low noise version (LN)
NX /LN-KCompared to the standard version- retains the same dimensions- noise reduction of up to 6dB(A)
Super low noise version (SL)
NX /SL-KCompared to the low noise version (LN-K)- retains the same dimensions (where possible)- further noise reduction of 4 to 6dB(A)
compared to the low noise version (LN-K)
NX /D /SL-K 1204P
Version
Function
Name
Size
Heat exchangerP - braze-welded plate
0614..1214 - based on the cooling capacity
empty - no function/D - with partial heat recovery
NX - liquid chiller
/K - compact standard efficiency/LN-K - compact std efficiency, low noise/SL-K - compact std efficiency, super low noise
6NX_0614P_1214P_201107_EN HFC 410A
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5. GENERAL CHARACTERISTICS
Maximum CompactnessThis new range is available in the new K version, that integratesthe maximum compactness with a qualifying unit’s efficiency.This allow to achieve a very high flexibility in the design processas well as during the on-site installation operations, offering apremium solution in case of reduced clearances or when retro-fitting existing installations.
Compliance with the strictest European standardsThe main new feature that distinguishes the new NX unitsregards the calculation methods used to define the energy effi-ciency values.These values are in fact now calculated not only based on thecapacity delivered and power consumed by the unit, but alsotaking into account heat exchanger pressure drop, or the avail-able pressure head if the unit is installed with pumps, asrequired by European standard EN14511.In this way, energy efficiency is no longer an index for evaluat-ing the unit alone, but rather extends the assessment by con-sidering the unit within the system, consequently taking intoaccount the energy required to pump the refrigerant or heat car-rier fluid used in the system.
Three sound emission levelsIn this new product range, the energy efficiency class is not thesole parameter used to select the units. The new NX appliances in fact also have three different soundemission levels for each energy class. This means the best unit can be identified based on require-ments, according to the system where it will be installed and theapplication.With the new NX liquid chillers there are no more compromiseswhen choosing the features, high efficiency and low noise canexist side-by-side without having to relinquish one or the other.
Microchannel aluminium coilsThe new NX range uses microchannel aluminium condensercoils on all units. This means less refrigerant is needed compared to traditionalcopper coils, ensuring the lowest possible ratio between refrig-erant volume and cooling capacity delivered, making this prod-uct range unique in its reference market, at the same timeextending product life due to better resistance to corrosion byatmospheric agents.The reduction in weight achieved by using this technology alsomeans the units can be handled more easily and safely, thusovercoming specific construction restrictions or limits in thepositioning and installation of the unit.
Built-in hydronic unitThe built-in hydronic unit incorporates all the main water circuitcomponents. All sizes are in fact available in the configuration with one or twohigh pressure pumps (up to 200 kPa), as well as with storagetank. This solution means the units are ready for installation withouthaving to install any additional circuiting outside of the unit andwithout increasing the dimensions occupied, thus simplifyingboth the design and installation of the systems.
Extended operating limitsThe NX units can operate in the most extreme environmentalconditions. All sizes and versions can in fact work at full load with outsideair temperatures up to +46°C, always ensuring maximum ener-gy performance.
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6. FUNCTIONS
Basic model
(Unit without heat recovery)
Model with partial heat recovery (D)
Air-cooled unit, complete with partial heat recovery. In this configuration a refrigerant/water heat exchanger is addedto the gas discharge line on every refrigerant circuit, comparedto the basic configuration. The heat exchanger, installed in series before the traditionalcondenser in the refrigerant circuit, is suitably sized to ensureheat recovery for hot water production at medium-high tempera-tures, for domestic or other uses. The heating capacity available is approximately equal to com-pressor power consumption.
7. VERSIONS
K – Compact with standard efficiency
Key efficiency, compact version.
LN-K - Compact with standard efficiency, low noise
Key efficiency, compact and low-noise version. This configura-tion features special soundproofing for the compressor chamberand pumps (if present) and a reduced fan speed. Fan speed isautomatically increased, however, in the event of particularlytough environmental conditions.
SL-K - Compact with standard efficiency, super low noise
Key efficiency, compact and super low-noise version. This con-figuration features special soundproofing for the compressorchamber and pumps (if present), reduced fan speed and anoversized condensing section. Fan speed is automaticallyincreased, however, in the event of particularly tough environ-mental conditions.
8NX_0614P_1214P_201107_EN HFC 410A
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Chiller, air source for outdoor installationOutdoor unit for the production of chilled water with hermeticrotary Scroll compressors, ozone-friendly refrigerant R410A,axial-flow fans, plate heat exchanger, micro-channel full-alu-minum air coils and thermostatic expansion valve. The range iscomposed by units equipped with four compressors in tandemconfiguration on two independent refrigeration circuits.
Structure Structure specifically designed for outdoor installation. Base-ment and frame in hot-galvanised shaped sheet steel with asuitable thickness. All parts polyester-powder painted to assuretotal weather resistance.
Refrigerant circuit Main components of the cooling circuit: - two circuits in tandem compressors for each circuit, - R410A refrigerant, - total ratio between refrigerant charge and cooling capacity*
lower than 0,12 g/W- plate heat exchanger, - anti-freeze heaters on the heat-exchanger, - liquid line check valve, - dehydrator filter, - coolant line sight glass with humidity indicator, - mechanical thermostatic expansion valves,- high and low pressure transducers, - high and low pressure gauges, - high pressure safety valve, - low pressure safety valve, - high pressure safety switches, - crankcase heater on each compressor.
* Cooling capacity according to Eurovent conditions: water(in/out) 12/7°C, outdoor temperature 7°C.
Compressor Hermetic scroll compressors in tandem layout completewith oil sump heater, electronic overheating protection with cen-tralised manual reset and a two-pole electric motor.
User (side) heat exchanger water AISI 316 steel braze-welded plate exchanger. The heatexchangers are insulated with a closed-cell condensation prooflining in neoprene. A thermostatically controlled electric heaterprevents ice from forming inside the evaporator when the unit isnot working. When the unit is working, it is protected by a differ-ential pressure switch mounted on the water side. The unit canwork with antifreeze mixtures at exchanger outlet temperaturesas low as -8°C.The hydronic group is composed by: - differential pressure switch - air-vent valve - discharge valve - hydraulic connection flush with unit’s enclosure
Source (side) heat exchanger air Full-aluminum coil made by aluminum tubes and fins. The alu-minum fins are correctly spaced to guarantee optimum heatexchange efficiency. The differentiated circulation suitably dis-tributes the liquid in the coil during the expansion phase. Coilstructure made with an open-angle V-geometry layout.
Electrical panel Electric power and control panel, built to EN 60204-1/EC 204-1standards, complete with: - control circuit transformer, - general door lock isolator, - fuses and contactors for compressors and fans, - auxiliary 4..20mA analogue input - terminals for cumulative alarm block (BCA), - remote ON/OFF terminals, - relays for remote pump(s) activation for both circuits (only for
units without hydronic pumps), - spring-type control circuit terminal board, - electric panel with double door and seals for outdoor installa-
tion, - electrical board for outdoor installation, - electronic controller, - multi-language user keypad with LCD display, - IP43 protection, - Power input: 400V~ ±10% - 50Hz - PE .
Fan section Ventilation system composed by 800mm axial electric fans, pro-tected to IP54, with external rotor and plastic-coated aluminumblades. Housed in aerodynamic hoods complete with safetygrille. 6 - pole electric motor with built-in overload protection.Continuous adjustment of fan rotation speed (excluded the K version).
Certification, reference standard The unit complies with the following directives and relativeamendments: - Machinery Directive: 2006/42/EC. - E.C.D. 89/336/EEC + 2004/108/EC. - Low Voltage Directive 2006/95/EC. - Pressure Equipment Directive 97/23/EC. Mod. A1. - TÜV-Italy
0948
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Tests
Tests performed throughout the production process, as indicat-ed in ISO9001. Performance or noise tests can be performedby highly qualified staff in the presence of customers. Performance tests comprise the measurement of: - electrical data - water flow rates - working temperatures - power input - power output - pressure drops on the water-side exchanger both at full load(at the conditions of selection and at the most critical conditionsfor the condenser) and at part load conditions. During performance testing it is also possible to simulate themain alarm states. Noise tests are performed to check noise emissions accordingto ISO3744.
W3000SE Compact
The W3000SE Compact controller offers advanced functionsand algorithms. The keypad features an easy-to-use interfaceand a complete LCD display, allowing to consult and interveneon the unit by means of a multi-level menu, with selectable lan-guage setting. The regulation is based on the exclusive Quick-Mind algorithm, including self-adaptive control logics, beneficialin low water content systems. As alternatives the proportional-or proportional-integral regulations are also available. The diag-nostics includes a complete alarm management, with the"black-box" and alarm logging functions for enhanced analysisof the unit operation. For multiple units’ systems, the regulationof the resources, via optional proprietary devices, can be imple-mented. Energy metering, for both consumption and capacity,can also be developed. Supervision can be easily developedvia proprietary devices or the integration in third party systemsby means of the most common protocols as ModBus, Bacnet,Bacnet-over-IP, Echelon LonWorks. Compatibility with theremote keyboard managing up to 10 units. Availability of aninternal real time clock for operation scheduling (4-day profileswith 10 hour belts). The defrost adopts a proprietary self-adap-tive logic, which features the monitoring of numerous opera-tional parameters. This allows to reduce the number and dura-tion of the defrost cycles, with a benefit for the overall energyefficiency.
10 NX_0614P_1214P_201107_EN
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HFC 410A
9.0 Accessories
COD. ACCESSORIES DESCRIPTION BENEFIT876 E-COATING MICROCHANNEL COILS Air coil with aluminum tubes and fi ns with e-coating
protection. Recommended for medium level of pollution or soft marine atmospheres.
879 COPPER/ALUMINUM COILS Air coil with copper tubes and aluminum fi ns ---
881 Cu/Cu condensing coils Air-refrigerant heat exchanger with copper fi ns and tubes.
Recommended for applications in corrosive atmo-spheres
894 Condensing coils with epoxy-coated fi ns Painted air-refrigerant heat exchanger. Recommended for applications in medium level pollution atmospheres.
895 Condensing coils with Fin Guard Silver treat-ment
Air-refrigerant heat exchanger with epoxidic treat-ment on coils and fi ns.
Recommended for marine exposure conditions, with an high level of pollution or other aggressive atmospheres.
1511 Soft start Electronic device adopted to manage the inrush current.
Break down of the inrush current as soon as the electrical motor is switch on, lower motor's mechani-cal wear, favourable sizing for the electrical system.
2411 Remote phase-sequence control Relay for controlling the phase-sequence of mains. Protects loads against faults due to incorrect con-nection of the electric line.
3601 Compressors' on/off signal Auxiliary contacts providing a voltage-free signal Allows remote signalling of compressor's activation or remote control of any auxiliary loads.
4181 ModBUS connectivity Interface module for ModBUS protocols Allows integration with BMS operating with ModBUS protocol
4184 BACnet connectivity Interface module for BACnet protocols Allows integration with BMS operating with BACnet protocol
4182 Echelon connectivity Interface module for Echelon systems Allows integration with BMS operating with LonWor-ks procotls
1401 HP AND LP GAUGES High and low pressure gauges. Allows immediate reading of the pressure values on both low and high pressure circuits.
1911 COMPR. DISCHARGE LINE VALVE Shut-off solenoid valve on compressor discharge circuit
Simplifi es maintenance activities.
3412 Automatic circuit breakers Over-current switch on the major electrical loads. It protects compressors and/or fans from possible current peaks.
6171 INPUT REMOTE DEMAND LIMIT Digital input (voltage free) It permits to limit the unit's power absorption for safety reasons or in temporary situation.
601 Liquid line solenoid valve Solenoid valve on the refrigerant circuit inlet It avoids liquid to migrate toward the compressors when they are off
381 Numbered cables on electrical board
6162 REMOTE SIGNAL DOUBLE SP Allows to activate the Energy Saving set-point Enforce Energy Saving policy
2101 Rubber anti vibration device
2102 Spring anti vibration device
2421 TANK ANTIFREEZE HEATER Electrica anti-freeze heater installed into the buffer tank.
Prevents frost formation in the buffer tank
4185 BACnet OVER IP connectivity Interface module for BACnet OVER-IP protocols Allows to interconnect BACnet devices over Internet Protocol within wide-area networks
1981 SIDE PANELS ON THE COILS Metallic panels on the coils (piping side only) Improve protection and unit's aesthetics
6163 AUX 4-20mA REMOTE D L.C. 4..20mA analogue input, voltage-free digitale input. Allows to change the operating set-point according to value of current applied to 4..20mA input and to limit the unit's power (by activating the digital input).
Enforce Energy Saving policy, ensure safety operation.
2641 Extra inslutation for low temperature. Increased insulation in 20 mm thick closed-cell expanded polyurethane.
Prevents problems related to condensate. Recom-mended with leaving water temperature lower than -8°C
801 DP Pressostatic control to manage the fan's activation according to the condensing pressure detected on the refrigeration circuit; this device is recommended to enlarge the nominal unit's operating conditions
Increases the global effi ciency thanks to a more fl e-xible air fl ow management through the condensing coils. Improves the quietness in part load operating conditions. Extends the unit's operating range allowing it to work safetely down to +5°C outdoor air temperature and +5°C leaving water temperature
802 DVV Fan speed control according to the condensing pressure; the use of this device is mandatory in case the unit operates with low evaporator leaving water temperature setpoint further combined with a low outdoor temperature [See the section "Opera-ting limit" for more further information]
Increase of the unit global effi ciency thanks to a more accurate fans speed management. Impro-vement of the quietness in part load operating conditions. Extension of the unit operating range ensuring a safe operation down to -10°C outdoor air temperature.
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HFC 410A
COD. ACCESSORIES DESCRIPTION BENEFIT819 DVVF Fan speed control according to the condensing
pressure; the use of this device is mandatory in case the unit operates with low evaporator leaving water temperature setpoint further combined with a low outdoor temperature [See the section "Opera-ting limit" for more further information]
Increase of the unit global effi ciency thanks to a more accurate fans speed management. Impro-vement of the quietness in part load operating conditions. Extension of the unit operating range ensuring a safe operation down to -10°C outdoor air temperature. Allows the unit to operate at even most extreme conditions avoiding any risk of low pressure intervention.
821 DVV2F Fan speed control according to the condensing pressure; the use of this device is mandatory in case the unit operates with low evaporator leaving water temperature setpoint further combined with a low outdoor temperature [See the section "Opera-ting limit" for more further information]
Increase of the unit global effi ciency thanks to a more accurate fans speed management. Impro-vement of the quietness in part load operating conditions. Extension of the unit operating range ensuring a safe operation down to -10°C outdoor air temperature. Allows the unit to operate at even most extreme conditions avoiding any risk of low pressure intervention.
2024 External coils Anti-intrusions grills Avoid the intrusion of solid bodies into the unit's structure
1961 PRESSURE RELIEF VALVES Dual relief valve with switch Allows to unselect a relief valve in order to service the unit avoiding medium or long inoperative periods
6311 VISUAL DISPLAY PROTECTION Display protection panel Potect the display against weather and U.V. rays
1925 / 1923
EEV FOR UNITS WITHOUT DVV Electronic lamination device wtih step motor. It is designed for the continuous and precise control of refrigerant fl ow entering in the evaporator. For versions without continuous adjustment of the fan speed, this option comprise the DVV device.
This solution permits extremely short times for reaction to variation in load, optimising power consumption.
1926 / 1924
EEV FOR UNITS WITH DVV Electronic expansion valve This solution permits extremely short times for reaction to variation in load, optimising power consumption.
11
NX / K10.1 GENERAL TECHNICAL DATA
NX / K 0614P 0714P 0814P 0914P 1014P 1114P 1214PPower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50PERFORMANCECOOLING ONLY (GROSS VALUE)Cooling capacity (1) kW 165 194 218 248 289 308 327Total power input (1) kW 58,3 66,7 78,9 88,6 99,0 108 118EER (1) 2,83 2,91 2,76 2,80 2,92 2,85 2,76ESEER (1) 4,06 4,39 4,30 4,41 4,26 4,27 4,18COOLING ONLY (EN14511 VALUE)Cooling capacity (1)(2) kW 164 193 217 247 288 307 325EER (1)(2) 2,78 2,86 2,72 2,76 2,87 2,80 2,72ESEER (1)(2) 3,85 4,16 4,08 4,18 4,05 4,08 3,99Cooling energy class C C C C C C CCOOLING WITH PARTIAL RECOVERYCooling capacity (3) kW 171 201 226 257 300 320 339Total power input (3) kW 56,6 64,7 76,4 85,8 95,9 105 114Desuperheater heating capacity (3) kW 44,9 52,4 63,3 72,0 77,6 86,1 94,8EXCHANGERSHEAT EXCHANGER USER SIDE IN REFRIGERATIONWater flow (1) m³/h 28,3 33,4 37,5 42,7 49,8 53,1 56,2Pressure drop (1) kPa 45,0 47,1 47,8 50,4 54,8 46,8 52,5PARTIAL RECOVERY USER SIDE INREFRIGERATIONWater flow (3) m³/h 7,80 9,11 11,0 12,5 13,5 15,0 16,5Pressure drop (3) kPa 19,2 26,1 38,1 39,1 45,5 44,7 54,3COMPRESSORSN. of compressors N° 4 4 4 4 4 4 4Number of capacity N° 4 4 4 4 4 4 4No. of circuits N° 2 2 2 2 2 2 2Regulation STEPS STEPS STEPS STEPS STEPS STEPS STEPSMin. capacity step % 25 25 25 25 25 25 25Refrigerant R410A R410A R410A R410A R410A R410A R410ARefrigerant charge kg 17,0 18,4 19,6 21,6 26,8 29,0 29,0Oil charge kg 14,4 26,8 26,8 26,8 26,8 27,8 28,8FANSQuantity N° 2 2 2 2 3 3 3Air flow m³/s 24,0 23,3 23,3 22,7 35,0 35,0 35,0Fans power kW 2,00 2,00 2,00 2,00 2,00 2,00 2,00NOISE LEVELNoise Pressure (4) dB(A) 60 60 61 62 63 63 63Noise Power (5) dB(A) 92 92 93 94 95 95 95SIZE AND WEIGHTA (6) mm 3160 3160 3160 3160 4335 4335 4335B (6) mm 2250 2250 2250 2250 2250 2250 2250H (6) mm 2170 2170 2170 2170 2170 2170 2170Operating weight (6) kg 1510 1680 1690 1830 2250 2300 2330
Notes:1 Plant (side) cooling exchanger water (in/out) 12°C/7°C; Source (side) heat exchanger air (in) 35°C2 Values in compliance with EN14511-3:20113 Evaporator water (in/out) = 12°C/7°C; Condenser air (in) = 35°C; Desuperheater water (in/out) = 40°C/45°C.4 Average sound pressure level, at 10m distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level.5 Sound power on the basis of measurements made in compliance with ISO 9614 and Eurovent 8/1 for Eurovent certified units; in compliance with ISO 3744 for non-certified units.6 Unit in standard configuration/execution, without optional accessories.- Unavailable
12
NX / LN-KGENERAL TECHNICAL DATA
NX / LN-K 0614P 0714P 0814P 0914P 1014P 1114P 1214PPower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50PERFORMANCECOOLING ONLY (GROSS VALUE)Cooling capacity (1) kW 160 185 208 235 274 290 320Total power input (1) kW 58,1 68,6 79,6 92,2 101 112 118EER (1) 2,75 2,70 2,62 2,55 2,71 2,60 2,70ESEER (1) 4,13 4,42 4,37 4,41 4,25 4,25 4,37COOLING ONLY (EN14511 VALUE)Cooling capacity (1)(2) kW 159 185 207 234 273 289 319EER (1)(2) 2,70 2,66 2,58 2,51 2,67 2,57 2,66ESEER (1)(2) 3,94 4,19 4,16 4,19 4,05 4,06 4,16Cooling energy class C D D D D D DCOOLING WITH PARTIAL RECOVERYCooling capacity (3) kW 166 192 216 244 284 301 332Total power input (3) kW 56,3 66,3 77,0 89,2 97,7 108 115Desuperheater heating capacity (3) kW 47,6 56,9 66,8 77,7 83,7 93,2 99,3EXCHANGERSHEAT EXCHANGER USER SIDE IN REFRIGERATIONWater flow (1) m³/h 27,5 31,9 35,9 40,4 47,2 50,0 55,1Pressure drop (1) kPa 42,4 43,0 43,7 45,2 49,2 41,5 50,5PARTIAL RECOVERY USER SIDE INREFRIGERATIONWater flow (3) m³/h 8,27 9,89 11,6 13,5 14,5 16,2 17,3Pressure drop (3) kPa 21,6 30,8 42,4 45,5 52,9 52,4 59,6COMPRESSORSN. of compressors N° 4 4 4 4 4 4 4Number of capacity N° 4 4 4 4 4 4 4No. of circuits N° 2 2 2 2 2 2 2Regulation STEPS STEPS STEPS STEPS STEPS STEPS STEPSMin. capacity step % 25 25 25 25 25 25 25Refrigerant R410A R410A R410A R410A R410A R410A R410ARefrigerant charge kg 17,0 18,4 19,6 21,6 26,8 29,0 29,0Oil charge kg 14,4 26,8 26,8 26,8 26,8 27,8 28,8FANSQuantity N° 2 2 2 2 3 3 3Air flow m³/s 17,9 17,2 16,5 17,8 25,8 25,8 24,7Fans power kW 1,20 1,20 1,20 1,30 1,20 1,20 1,20NOISE LEVELNoise Pressure (4) dB(A) 54 54 55 56 57 57 58Noise Power (5) dB(A) 86 86 87 88 89 89 90SIZE AND WEIGHTA (6) mm 3160 3160 3160 3160 4335 4335 4335B (6) mm 2250 2250 2250 2250 2250 2250 2250H (6) mm 2170 2170 2170 2170 2170 2170 2170Operating weight (6) kg 1550 1730 1740 1870 2300 2350 2370
Notes:1 Plant (side) cooling exchanger water (in/out) 12°C/7°C; Source (side) heat exchanger air (in) 35°C2 Values in compliance with EN14511-3:20113 Evaporator water (in/out) = 12°C/7°C; Condenser air (in) = 35°C; Desuperheater water (in/out) = 40°C/45°C.4 Average sound pressure level, at 10m distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level.5 Sound power on the basis of measurements made in compliance with ISO 9614 and Eurovent 8/1 for Eurovent certified units; in compliance with ISO 3744 for non-certified units.6 Unit in standard configuration/execution, without optional accessories.- Unavailable
13
NX / SL-KGENERAL TECHNICAL DATA
NX / SL-K 0614P 0714P 0814P 0914P 1014P 1114P 1214PPower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50PERFORMANCECOOLING ONLY (GROSS VALUE)Cooling capacity (1) kW 159 180 214 241 264 296 312Total power input (1) kW 56,3 70,7 77,8 89,3 104 109 120EER (1) 2,82 2,54 2,75 2,70 2,55 2,71 2,61ESEER (1) 4,34 4,41 4,40 4,41 4,28 4,34 4,26COOLING ONLY (EN14511 VALUE)Cooling capacity (1)(2) kW 158 179 213 240 263 295 311EER (1)(2) 2,78 2,51 2,71 2,66 2,51 2,68 2,57ESEER (1)(2) 4,13 4,21 4,19 4,20 4,09 4,15 4,07Cooling energy class C D C D D D DCOOLING WITH PARTIAL RECOVERYCooling capacity (3) kW 165 187 222 250 274 307 324Total power input (3) kW 54,4 68,4 75,3 86,4 100 106 116Desuperheater heating capacity (3) kW 47,0 59,9 64,6 74,9 87,7 90,9 100EXCHANGERSHEAT EXCHANGER USER SIDE IN REFRIGERATIONWater flow (1) m³/h 27,4 31,0 36,9 41,5 45,5 51,0 53,8Pressure drop (1) kPa 41,9 40,5 46,3 47,6 45,7 43,1 48,0PARTIAL RECOVERY USER SIDE INREFRIGERATIONWater flow (3) m³/h 8,17 10,4 11,2 13,0 15,2 15,8 17,4Pressure drop (3) kPa 21,0 34,1 39,7 42,4 58,1 50,0 60,8COMPRESSORSN. of compressors N° 4 4 4 4 4 4 4Number of capacity N° 4 4 4 4 4 4 4No. of circuits N° 2 2 2 2 2 2 2Regulation STEPS STEPS STEPS STEPS STEPS STEPS STEPSMin. capacity step % 25 25 25 25 25 25 25Refrigerant R410A R410A R410A R410A R410A R410A R410ARefrigerant charge kg 17,0 18,4 25,2 27,2 26,8 34,6 34,6Oil charge kg 14,4 26,8 26,8 26,8 26,8 27,8 28,8FANSQuantity N° 2 2 3 3 3 4 4Air flow m³/s 13,2 13,2 20,3 19,8 19,8 27,1 27,1Fans power kW 0,90 0,90 0,90 0,90 0,90 0,90 0,90NOISE LEVELNoise Pressure (4) dB(A) 50 51 51 52 52 54 54Noise Power (5) dB(A) 82 83 83 84 84 86 86SIZE AND WEIGHTA (6) mm 3160 3160 4335 4335 4335 5510 5510B (6) mm 2250 2250 2250 2250 2250 2250 2250H (6) mm 2170 2170 2170 2170 2170 2170 2170Operating weight (6) kg 1550 1730 2030 2170 2300 2700 2730
Notes:1 Plant (side) cooling exchanger water (in/out) 12°C/7°C; Source (side) heat exchanger air (in) 35°C2 Values in compliance with EN14511-3:20113 Evaporator water (in/out) = 12°C/7°C; Condenser air (in) = 35°C; Desuperheater water (in/out) = 40°C/45°C.4 Average sound pressure level, at 10m distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level.5 Sound power on the basis of measurements made in compliance with ISO 9614 and Eurovent 8/1 for Eurovent certified units; in compliance with ISO 3744 for non-certified units.6 Unit in standard configuration/execution, without optional accessories.- Unavailable
14NX_0614P_1214P_201107_EN HFC 410A
NX11. OPERATION LIMITS
Te out [°C]
Ta in [°C]
-15
-10
15
10
5
5 15(*)Min.
Te out
-5 7
STANDARD UNITOPERATING RANGE
46
DVV2F option (821) required
DVV “Variable fan speed low ambient control” option (802) required
DVVF option (819) required
Operating range achievable with a wind speed lower than 0,5m/s.The unit must be equipped with all following options:- DVV2F option (821) - Extra insulation option (2641)- Electrical heaters option (2432 or 2433 according to hydronic module)
Evaporator outlet temperature [°C]Te out
Outdoor air temperature [°C]Ta in
37
0
0
AB
A
B
Operating range achievable with a wind speed lower than 0,5m/s.The unit must be equipped with all following options:- DVVF option (819) - Extra insulation option (2641)- Electrical heaters option (2432 or 2433 according to hydronic module)
(*)Min.
Te out
-10[°C] for standard units without partial heat reclaim-8[°C] for units with de-superheater for partial heat reclaim
NOTESApplicable to units equipped with de-superheater for partial heat reclaim.De-superheater operating limits:- minimum inlet temperature = 25 [°C]- minimum outlet temperature = 30 [°C]
18
DP “Pressostatic low ambient control” option (801) required
NX /K and NX /D/K 0614P - 1214P
NX_0614P_1214P_201107_EN HFC 410A15
NX
Te out [°C]
Ta in [°C]
-15
-10
15
5 15(*)Min.
Te out
-5 7
46
DVV2F option (821) required
DVV “Variable fan speed low ambient control” option (802) required (Standard)
DVVF option (819) required
Operating range achievable with a wind speed lower than 0,5m/s.The unit must be equipped with all following options:- DVV2F option (821) - Extra insulation option (2641)- Electrical heaters option (2432 or 2433 according to hydronic module)
Evaporator outlet temperature [°C]Te out
Outdoor air temperature [°C]Ta in
37
0
0
AB
A
B
Operating range achievable with a wind speed lower than 0,5m/s.The unit must be equipped with all following options:- DVVF option (819) - Extra insulation option (2641)- Electrical heaters option (2432 or 2433 according to hydronic module)
(*)Min.
Te out
-10[°C] for standard units without partial heat reclaim-8[°C] for units with de-superheater for partial heat reclaim
NOTESApplicable to units equipped with de-superheater for partial heat reclaim.De-superheater operating limits:- minimum inlet temperature = 25 [°C]- minimum outlet temperature = 30 [°C]
NX /LN-K and NX /D/LN-K 0614P - 1214PNX /SL-K and NX /D/SL-K 0614P - 1214P
Non-silenced operating range
-2
STANDARD UNITOPERATING RANGE
16NX_0614P_1214P_201107_EN HFC 410A
NX
12. ETHYLENE GLYCOL MIXTURE
Ethylene glycol and water mixture, used as a heat-conveying fluid, cause a variation in unit performance. For correct data, use the fac-tors indicated in the following tabel.
cPf: cooling power correction factorcQ: flow correction factorcdp: pressure drop correction factor
For data concerning other kind of anti-freeze solutions (e,g, propylene glycol) pleasecontact our Sale Department.
Freezing point (°C)
0 -5 -10 -15 -20 -25 -30 -35Ethylene glycol percentage by weight
0 12% 20% 30% 35% 40% 45% 50%cPf 1 0,985 0,98 0,974 0,97 0,965 0,964 0,96cQ 1 1,02 1,04 1,075 1,11 1,14 1,17 1,2cdp 1 1,07 1,11 1,18 1,22 1,24 1,27 1,3
ff: fouling factorsf1 - f2: potential correction factorsfk1 - fk2: compressor power input correction factorsr3: capacity correction factorsKE: minimum condenser outlet temperature increaseKC: maximum condenser outlet temperature decrease
13. FOULING FACTORS
Performances are based on clean condition of tubes (fouling factor = 1). For different fouling values, performance should be adjustedusing the correction factors shown in the following table.
FOULING FACTORS EVAPORATOR CONDENSER/RECOVERY DESUPERHEATER
ff (m2 °CW) F1 FK1 KE [°C] F1 FK1 KE [°C] R3
0 1,000 1,000 0,0 1,000 1,000 0,0 1,001,80 x 10 -5 1,000 1,000 0,0 1,000 1,000 0,0 1,004,40 x 10 -5 1,000 1,000 0,0 0,990 1,030 1,0 0,9908,80 x 10 -5 0,960 0,990 0,7 0,980 1,040 1,5 0,980
13,20 x 10 -5 0,944 0,985 1,0 0,964 1,050 2,3 0,96417,20 x 10 -5 0,930 0,980 1,5 0,950 1,050 3,0 0,950
NX_0614P_1214P_201107_EN HFC 410A17
NX
14. HYDRAULIC DATA
Water flow and pressure dropWater flow in the heat exchangers is given by: Q=Px0,86/DtQ: water flow (m3/h)Dt: difference between inlet and outlet water temp. (°C)P: heat exchanger capacity (kW)
Pressure drop is given by: Dp= K x Q2/1000Q: water flow (m3/h)Dp: pressure drop (kPa)K: unit size ratio
Q min: minimum water flow admitted to the heat exchangerQ max: maximum water flow admitted to the heat exchangerC.a. min: minimum water content admitted in the plant, using traditional control logicC.A.S.: heat exchanger water content- - -
PLANT SIDE COLD HEAT EXCHANGER AUXILIARY SIDE HEATEXCHANGER
SIZEK
Q min Q max C.A.S. C.a.K
Q min C.A.S. Q max
m³/h m³/h dm³ min m³ m³/h dm³ m³/h
NX /K 0614P 56 17,5 47,4 8,6 0,412 - - - -NX /K 0714P 42,2 20,7 55,8 10,5 0,485 - - - -NX /K 0814P 34 23 62 12,3 0,539 - - - -NX /K 0914P 27,6 26,5 62 15,1 0,621 - - - -NX /K 1014P 22,1 30,9 68,8 18,9 0,723 - - - -NX /K 1114P 16,6 33 68,8 23 0,771 - - - -NX /K 1214P 16,6 34,9 68,8 23 0,817 - - - -NX /LN-K 0614P 56 17,5 47,4 8,6 0,412 - - - -NX /LN-K 0714P 42,2 20,7 55,8 10,5 0,485 - - - -NX /LN-K 0814P 34 23 62 12,3 0,539 - - - -NX /LN-K 0914P 27,6 26,5 62 15,1 0,621 - - - -NX /LN-K 1014P 22,1 30,9 68,8 18,9 0,723 - - - -NX /LN-K 1114P 16,6 33 68,8 23 0,771 - - - -NX /LN-K 1214P 16,6 34,9 68,8 23 0,817 - - - -NX /SL-K 0614P 56 17,5 47,4 8,6 0,412 - - - -NX /SL-K 0714P 42,2 20,7 55,8 10,5 0,485 - - - -NX /SL-K 0814P 34 23 62 12,3 0,539 - - - -NX /SL-K 0914P 27,6 26,5 62 15,1 0,621 - - - -NX /SL-K 1014P 22,1 30,9 68,8 18,9 0,723 - - - -NX /SL-K 1114P 16,6 33 68,8 23 0,771 - - - -NX /SL-K 1214P 16,6 34,9 68,8 23 0,817 - - - -NX /D /K 0614P 56 17,5 47,4 8,6 0,412 315 - 1,22 9,7NX /D /K 0714P 42,2 20,7 55,8 10,5 0,485 315 - 1,22 11,3NX /D /K 0814P 34 23 62 12,3 0,539 315 - 1,22 13,6NX /D /K 0914P 27,6 26,5 62 15,1 0,621 250 - 1,46 15,5NX /D /K 1014P 22,1 30,9 68,8 18,9 0,723 250 - 1,46 16,7NX /D /K 1114P 16,6 33 68,8 23 0,771 200 - 1,83 18,5NX /D /K 1214P 16,6 34,9 68,8 23 0,817 200 - 1,83 20,4NX /D /LN-K 0614P 56 17,5 47,4 8,6 0,412 315 - 1,22 9,7NX /D /LN-K 0714P 42,2 20,7 55,8 10,5 0,485 315 - 1,22 11,3NX /D /LN-K 0814P 34 23 62 12,3 0,539 315 - 1,22 13,6NX /D /LN-K 0914P 27,6 26,5 62 15,1 0,621 250 - 1,46 15,5NX /D /LN-K 1014P 22,1 30,9 68,8 18,9 0,723 250 - 1,46 16,7NX /D /LN-K 1114P 16,6 33 68,8 23 0,771 200 - 1,83 18,5NX /D /LN-K 1214P 16,6 34,9 68,8 23 0,817 200 - 1,83 20,4NX /D /SL-K 0614P 56 17,5 47,4 8,6 0,412 315 - 1,22 9,7NX /D /SL-K 0714P 42,2 20,7 55,8 10,5 0,485 315 - 1,22 11,3NX /D /SL-K 0814P 34 23 62 12,3 0,539 315 - 1,22 13,6NX /D /SL-K 0914P 27,6 26,5 62 15,1 0,621 250 - 1,46 15,5NX /D /SL-K 1014P 22,1 30,9 68,8 18,9 0,723 250 - 1,46 16,7NX /D /SL-K 1114P 16,6 33 68,8 23 0,771 200 - 1,83 18,5NX /D /SL-K 1214P 16,6 34,9 68,8 23 0,817 200 - 1,83 20,4
15. HYDRONIC GROUP (Optional)
The units can be supplied with a hydronic group. This houses all the main hydraulic components, thereby optimising hydraulic and electric installation space, time and cost.
Available pump confi gurations:Hydronic kit with one IN-LINE 2-pole low-head pump -Hydronic kit with one IN-LINE 2-pole high-head pump -Hydronic kit with IN-LINE 2-pole low-head twin pumps -Hydronic kit with IN-LINE 2-pole high-head twin pumps -
Storage tank (upon request) The storage tank system features:
500 litre tank for the sizes and versions shown in the table -ofcombinations 700 litre tank for the sizes and versions shown in the table -ofcombinations expansion vessel (EPDM membrane), 25 litre capacity with1.5 -bar pre-charge for 500 litre tanks expansion vessel (EPDM membrane), 40 litre capacity with1.5 -bar pre-charge for 700 litre tanks pressure gauge -safety valve calibrated to 6 bars -storage tank with 20 mm lining -tank frost protection heater upon request -
2-pole low head pumpCentrifugal pumps with in-line suction and delivery f anges, in single and twin versions. Pump body in cast iron and impeller in AISI 316L stainless steel or cast-iron, entirely laser technology welded. Mechanical seal with components in ceramics, carbon and EPDM elastomers. Three-phase electric motor protected to IP55, insulation class F, suitable for continuous service.
2-pole high-head pumpAll versions of the hydronic unit can be supplied with a high head pump. In these cases, the pump features a two-pole motor even in the silent-running versions.
Twin pumpA second stand-by pump for high or low pressures is availa-ble on request. The pumps are automatically exchanged on the basis of a rotation programme and the stand-by pump cuts in automatically if the primary pump fails.
GENERAL CHARACTERISTICS Water connectionsIn the units without pumps, standard version, the connections for the water inlet and outlet both in the evaporator and in the desuperheater are inside the unit. As an accessory one can re-quest these connections f ush with the unit.For units with pumps, the connections are always f ush with the unit.
Water-side mechanical fi lter (optional)Y-f lter designed and built to capture the impurities in the hy-draulic circuit. It is f tted with a 0.9 mm stainless steel mesh car-tridge which can be replaced without removing the valve body from the piping.
Unit electrical panelThe unit electrical panel is f tted with fuses and a circuit breaker contactor.
Special pumpsFor pumps with dif ferent conf gurations, please contact our sales department.
Additional components The supply does not include the following accessories though these are recommended to ensure correct system operation:- MA Pressure gauges upline and downline from the unit- GF Flexible joints on piping- RI On-off valves- T Outlet control thermometer
Storage tank combinations
NX VERSION
WATER TANK
Capacity
[litri]
0614P
K 500
LN-K 500
SL-K 500
0714P
K 500
LN-K 500
SL-K 500
0814P
K 500
LN-K 500
SL-K 700
0914P
K 500
LN-K 500
SL-K 700
1014P
K 700
LN-K 700
SL-K 700
1114P
K 700
LN-K 700
SL-K 700
1214P
K 700
LN-K 700
SL-K 700
18 NX_0614P_1214P_201107_EN
NX
HFC R410A
HYDRONIC GROUP (Optional)
15.1 Hydraulic diagram
P
S1
S2
EV
SF
SC
Pd
P
Sonda ingresso acqua scambiatore Exchanger water inlet probe
P
LEGENDA - LEGEND
SC
S1
S2 Sonda uscita acqua scambiatoreExchanger water outlet probe
EV
Drain valveValvola di scarico
Evaporator Evaporatore
PompaWater pump
RITORNO DALL'IMPIANTORETURN FROM HYDRAULIC SYSTEM
MANDATA ALL'IMPIANTODISCHARGE TO HYDRAULIC SYSTEM
SF Purge valveValvola di sfiato
CONPONENTI DEL KIT IDRONICOCOMPONENTS OF THE HYDRONIC KIT
Pd Water Differential pressure switchPressostato differenziale lato acqua
19 NX_0614P_1214P_201107_EN HFC R410A
NX
HYDRONIC GROUP (Optional))
15.2 Hydraulic diagram with water tank
Pd
S1
S2
Sc1
EV
~VE
Sc2VA
Sf2
AC
P P
RRMA
Sf1
Sc1
Evaporators/Condensers water outlet probe
Evaporators/Condensers water inlet probeSonda uscita acqua evaporatori/condensatori
Sonda ingresso acqua evaporatori/condensatori
Pressostato differenzialeDifferential pressure switch
Evaporatore
S2
S1
Pd
LEGENDA - LEGEND
EV Evaporator
Scarico Evaporatore/CondensatoreEvaporator/Condenser drain valve
DISCHARGE TO HYDRAULIC SYSTEM
Sc1
MANDATA ALL'IMPIANTO
Evaporator/Condenser breather valveSfiato Evaporatore/CondensatoreSf1
RITORNO DALL'IMPIANTORETURN FROM HYDRAULIC SYSTEM
AccumuloWater tankAC
MA Water pressure gaugeManometro
P PompaWater pump
Filling valveRubinetto reintegroRR
Sc2 Water tank drain valveScarico acqua accumulo
Sfiato accumuloTank breather valveSf2
Safety valveValvola di sicurezzaVA
VE Vaso di espansioneExpansion tank
20 NX_0614P_1214P_201107_EN
NX
HFC R410A
1 PUMP - LOW HEAD PUMP
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
HYDRONIC GROUP (Optional)
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 A1 FCE 50-160/22 2 2,2 5,0 62,6 50 128 23,7
0714P K 194,1 33,4 A2 FCE 50-160/22 2 2,2 5,0 48,8 54 102 23,7
0814P K 217,8 37,5 D1 FCE 65-125/30 2 3 6,0 40,6 57 118 4,9
0914P K 248,2 42,7 D2 FCE 65-125/30 2 3 6,0 34,2 62 101 4,9
1014P K 289,2 49,7 E1 FCE 65-125/40 2 4 8,1 28,7 71 118 4,9
1114P K 308,4 53,0 E2 FCE 65-125/40 2 4 8,1 19,6 55 125 4,9
1214P K 326,7 56,2 E2 FCE 65-125/40 2 4 8,1 19,6 62 109 4,9
0
20
40
60
80
100
120
140
160
180
200
220
240
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74
Q [m3/h]
Hu
[kPa
]
A1 A2 D1 D2 E1 E2
21 NX_0614P_1214P_201107_EN HFC R410A
NX
HYDRONIC GROUP (Optional)
1 PUMP - HIGH HEAD PUMP
WORKING HEAD CURVES
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 B1 FCE 50-160/30 2 2,2 5,0 62,6 50 184 23,7
0714P K 194,1 33,4 C1 FCE 50-160/40 2 2,2 5,0 48,8 54 207 23,7
0814P K 217,8 37,5 F1 FCE 65-160/55 2 3 6,0 40,6 57 236 4,9
0914P K 248,2 42,7 F2 FCE 65-160/55 2 3 6,0 34,2 62 217 4,9
1014P K 289,2 49,7 F3 FCE 65-160/55 2 4 8,1 28,7 71 190 4,9
1114P K 308,4 53,0 F4 FCE 65-160/55 2 4 8,1 19,6 55 197 4,9
1214P K 326,7 56,2 G1 FCE 65-160/75 2 4 8,1 19,6 62 245 4,9
020406080
100120140160180200220240260280300320340360380
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80
Q [m3/h]
Hu
[kPa
]
C1 F1 F2F3
F4
G1
B1
22 NX_0614P_1214P_201107_EN
NX
HFC R410A
HYDRONIC GROUP (Optional)
1 PUMP - LOW HEAD PUMP WITH WATER TANK
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 A1 FCE 50-160/22 2 2,2 5,0 64,1 51 127 23,7
0714P K 194,1 33,4 A2 FCE 50-160/22 2 2,2 5,0 50,3 56 100 23,7
0814P K 217,8 37,5 D1 FCE 65-125/30 2 3 6,0 42,1 59 116 4,9
0914P K 248,2 42,7 D2 FCE 65-125/30 2 3 6,0 35,7 65 98 4,9
1014P K 289,2 49,7 E1 FCE 65-125/40 2 4 8,1 30,2 75 115 4,9
1114P K 308,4 53,0 E2 FCE 65-125/40 2 4 8,1 21,2 60 121 4,9
1214P K 326,7 56,2 E2 FCE 65-125/40 2 4 8,1 21,2 67 104 4,9
0
20
40
60
80
100
120
140
160
180
200
220
240
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74
Q [m3/h]
Hu
[kPa
]
A1 A2 D1 D2 E1 E2
23 NX_0614P_1214P_201107_EN HFC R410A
NX
HYDRONIC GROUP (Optional)
1 PUMP - HIGH HEAD PUMP WITH WATER TANK
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 B1 FCE 50-160/30 2 2,2 5,0 64,1 51 183 23,7
0714P K 194,1 33,4 C1 FCE 50-160/40 2 2,2 5,0 50,3 56 205 23,7
0814P K 217,8 37,5 F1 FCE 65-160/55 2 3 6,0 42,1 59 234 4,9
0914P K 248,2 42,7 F2 FCE 65-160/55 2 3 6,0 35,7 65 215 4,9
1014P K 289,2 49,7 F3 FCE 65-160/55 2 4 8,1 30,2 75 186 4,9
1114P K 308,4 53,0 F4 FCE 65-160/55 2 4 8,1 21,2 60 192 4,9
1214P K 326,7 56,2 G1 FCE 65-160/75 2 4 8,1 21,2 67 240 4,9
020406080
100120140160180200220240260280300320340360380
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80
Q [m3/h]
Hu
[kPa
]
B1 C1 F1F2F3
F4
G1
24 NX_0614P_1214P_201107_EN
NX
HFC R410A
HYDRONIC GROUP (Optional)
2 PUMPS - LOW HEAD PUMP
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 A1 FCTE 50-160/22 2 3 6,0 62,6 50 124 23,7
0714P K 194,1 33,4 A2 FCTE 50-160/22 2 4 8,1 48,8 54 94 23,7
0814P K 217,8 37,5 D1 FCTE 65-125/30 2 5,5 10,1 40,6 57 116 4,9
0914P K 248,2 42,7 D2 FCTE 65-125/30 2 5,5 10,1 34,2 62 96 4,9
1014P K 289,2 49,7 E1 FCTE 65-125/40 2 5,5 10,1 28,7 71 113 4,9
1114P K 308,4 53,0 E2 FCTE 65-125/40 2 5,5 10,1 19,6 55 118 4,9
1214P K 326,7 56,2 E2 FCTE 65-125/40 2 7,5 13,7 19,6 62 101 4,9
0
20
40
60
80
100
120
140
160
180
200
220
240
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72
Q [m3/h]
Hu
[kPa
]
A1 A2 D1 D2 E1 E2
25 NX_0614P_1214P_201107_EN HFC R410A
NX
HYDRONIC GROUP (Optional)
2 PUMPS - HIGH HEAD PUMP
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 B1 FCTE 50-160/30 2 3 6,0 62,6 50 181 23,7
0714P K 194,1 33,4 C1 FCTE 50-160/40 2 4 8,1 48,8 54 208 23,7
0814P K 217,8 37,5 F1 FCTE 65-160/55 2 5,5 10,1 40,6 57 240 4,9
0914P K 248,2 42,7 F2 FCTE 65-160/55 2 5,5 10,1 34,2 62 221 4,9
1014P K 289,2 49,7 F3 FCTE 65-160/55 2 5,5 10,1 28,7 71 191 4,9
1114P K 308,4 53,0 F4 FCTE 65-160/55 2 5,5 10,1 19,6 55 196 4,9
1214P K 326,7 56,2 G1 FCTE 65-160/75 2 7,5 13,7 19,6 62 231 4,9
020406080
100120140160180200220240260280300320340360380
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80
Q [m3/h]
Hu
[kPa
]
C1B1 F1F2
F3
F4
G1
26 NX_0614P_1214P_201107_EN
NX
HFC R410A
HYDRONIC GROUP (Optional)
2 PUMPS - LOW HEAD PUMP WITH WATER TANK
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 A1 FCTE 50-160/22 2 3 6,0 64,1 51 123 23,7
0714P K 194,1 33,4 A2 FCTE 50-160/22 2 4 8,1 50,3 56 92 23,7
0814P K 217,8 37,5 D1 FCTE 65-125/30 2 5,5 10,1 42,1 59 114 4,9
0914P K 248,2 42,7 D2 FCTE 65-125/30 2 5,5 10,1 35,7 65 93 4,9
1014P K 289,2 49,7 E1 FCTE 65-125/40 2 5,5 10,1 30,2 75 110 4,9
1114P K 308,4 53,0 E2 FCTE 65-125/40 2 5,5 10,1 21,2 60 114 4,9
1214P K 326,7 56,2 E2 FCTE 65-125/40 2 7,5 13,7 21,2 67 96 4,9
0
20
40
60
80
100
120
140
160
180
200
220
240
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72
Q [m3/h]
Hu
[kPa
]
A1 A2 D1 D2 E1 E2
27 NX_0614P_1214P_201107_EN HFC R410A
NX
HYDRONIC GROUP (Optional)
2 PUMPS - HIGH HEAD PUMP WITH WATER TANK
(1) Values refer to rated operating conditions Pf Cooling capacity of unit Pt Heating capacity of unit Q Flow of water to evaporator F.L.I. Power absorbed by pump F.L.A. Current absorbed by pump
Ks Coeff cients for calculating pressure drops Unit with hydronic unit without network f lter and 3 way valve Kv3v Coeff cients 3 way valve for calculating pressure dropsKf Coeff cients f lter for calculating pressure dropsDps Total pressure drop of hydronic group Hu Residual head
WORKING HEAD CURVES
Pf (1) Q (1) Rif. Type N. F.L.I. F.L.A. Ks Dps Hu Kfi SIZE VERSION [kW] [m3/h] Pump Pump Poles [kW] [A] - kPa kPa -
0614P K 164,7 28,3 B1 FCTE 50-160/30 2 3 6,0 64,1 51 180 23,7
0714P K 194,1 33,4 C1 FCTE 50-160/40 2 4 8,1 50,3 56 206 23,7
0814P K 217,8 37,5 F1 FCTE 65-160/55 2 5,5 10,1 42,1 59 238 4,9
0914P K 248,2 42,7 F2 FCTE 65-160/55 2 5,5 10,1 35,7 65 218 4,9
1014P K 289,2 49,7 F3 FCTE 65-160/55 2 5,5 10,1 30,2 75 187 4,9
1114P K 308,4 53,0 F4 FCTE 65-160/55 2 5,5 10,1 21,2 60 191 4,9
1214P K 326,7 56,2 G1 FCTE 65-160/75 2 7,5 13,7 21,2 67 226 4,9
020406080
100120140160180200220240260280300320340360380
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80
Q [m3/h]
Hu
[kPa
]
C1B1 F1F2 F3
F4
G1
28 NX_0614P_1214P_201107_EN
NX
HFC R410A
NX_0614P_1214P_201107_EN HFC 410A29
NX
16. ELECTRICAL DATA
F.L.I.: Full load powerF.L.A.: Full load currentL.R.A.: Locked rotor amperes for single compressorS.A.: Inrush current(1) (2) Safety values to be considered when cabling the unit for power supply
and line-protections(1) Values calculated referring to the version with the maximum number of
fans working at the max absorbed current
Power supply: 400/3/50Voltage tolerance: 10%Maximum voltage unbalance: 3%
Give the typical operating conditions of units designed for outdoor installation,which can be associated (according to reference document IEC 60721) to the fol-lowing classes:- climatic conditions class 4K4H: air temperature range from -20 up to 55°C (*),
relative humidity range from 4 up to 100%, with possible precipitations, at air-pressure from 70 and 106 kPa and a maximum solar radiation of 1120 W/m2
- special climatic conditions negligible- biological conditions class 4B1 and 4C2: locations in a generic urban area- mechanically active substances class 4S2: locations in areas with sand or dust
representative of urban areas- mechanical conditions class 4M1: locations protected from significant vibrations
or shocksThe required protection level for safe operation, according to reference documentIEC 60529, is IP43XW (protection against access, to the most critical unit'sparts, of external devices with diameter larger than 1 mm and rain).The unit can be considered IP44XW protected, i.e. protected against access ofexternal devices (with diameter larger than 1 mm) and water in general.
(*) for the unit’s operating limits, see “selection limits” section
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16.3 NX /SL-K Electrical data
30NX_0614P_1214P_201107_EN HFC 410A
NX
17. FULL LOAD SOUND LEVEL
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17.1 NX /K Full load sound level
Working conditions
Plant (side) cooling exchanger water (in/out) 12/7 °CSource (side) heat exchanger air (in) 35 °CSound power on the basis of measurements made in compliance with ISO 9614 and Eurovent 8/1 for Eurovent certified units; in com-pliance with ISO 3744 for non-certified unitsSuch certification refers specifically to the sound Power Level in dB(A). This is therefore the only acoustic data to be considered asbinding.
Working conditions
Plant (side) cooling exchanger water (in/out) 12/7 °CSource (side) heat exchanger air (in) 35 °CAverage sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the soundpower level.
NX_0614P_1214P_201107_EN HFC 410A31
NX
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17.2 NX /LN-K Full load sound level
Working conditions
Plant (side) cooling exchanger water (in/out) 12/7 °CSource (side) heat exchanger air (in) 35 °CSound power on the basis of measurements made in compliance with ISO 9614 and Eurovent 8/1 for Eurovent certified units; in com-pliance with ISO 3744 for non-certified unitsSuch certification refers specifically to the sound Power Level in dB(A). This is therefore the only acoustic data to be considered asbinding.
Working conditions
Plant (side) cooling exchanger water (in/out) 12/7 °CSource (side) heat exchanger air (in) 35 °CAverage sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the soundpower level.
32NX_0614P_1214P_201107_EN HFC 410A
NX
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17.3 NX /SL-K Full load sound level
Working conditions
Plant (side) cooling exchanger water (in/out) 12/7 °CSource (side) heat exchanger air (in) 35 °CSound power on the basis of measurements made in compliance with ISO 9614 and Eurovent 8/1 for Eurovent certified units; in com-pliance with ISO 3744 for non-certified unitsSuch certification refers specifically to the sound Power Level in dB(A). This is therefore the only acoustic data to be considered asbinding.
Working conditions
Plant (side) cooling exchanger water (in/out) 12/7 °CSource (side) heat exchanger air (in) 35 °CAverage sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the soundpower level.
NX_0614P_1214P_201107_EN HFC 410A33
NX
18 DIMENSIONAL DRAWINGS
21
B
H
B
SP
AZ
IO D
I R
ISP
ET
TO
MIN
IMU
M C
LE
AR
AN
CE
SP
AZ
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21
21
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45
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R3
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34NX_0614P_1214P_201107_EN HFC 410A
NX
VICTAULIC fittings complete with threaded male stubs on thesystem side of the cooling heat exchanger and auxiliary heatexchanger (see the drawing showing composition of the fittingskit).
SIZE DIMENSIONS AND WEIGTH CLEARANCEPLANT SIDE COLD AUXILIARY SIDE
HEAT EXCHANGER HEAT EXCHANGER
A B H PESO R1 R2 R3 R4 IN/OUT IN/OUT
[mm] [mm] [mm] [kg] [mm] [mm] [mm] [mm] TIPO Ø TIPO Ø
NX /K 0614P 3160 2250 2170 1510 1500 2300 1500 1500 VICTAULIC 3" - -
NX /K 0714P 3160 2250 2170 1680 1500 2300 1500 1500 VICTAULIC 3" - -
NX /K 0814P 3160 2250 2170 1690 1500 2300 1500 1500 VICTAULIC 3" - -
NX /K 0914P 3160 2250 2170 1830 1500 2300 1500 1500 VICTAULIC 3" - -
NX /K 1014P 4335 2250 2170 2250 1500 2300 1500 1500 VICTAULIC 3" - -
NX /K 1114P 4335 2250 2170 2300 1500 2300 1500 1500 VICTAULIC 4" - -
NX /K 1214P 4335 2250 2170 2330 1500 2300 1500 1500 VICTAULIC 4" - -
NX /LN-K 0614P 3160 2250 2170 1550 1500 2300 1500 1500 VICTAULIC 3" - -
NX /LN-K 0714P 3160 2250 2170 1730 1500 2300 1500 1500 VICTAULIC 3" - -
NX /LN-K 0814P 3160 2250 2170 1740 1500 2300 1500 1500 VICTAULIC 3" - -
NX /LN-K 0914P 3160 2250 2170 1870 1500 2300 1500 1500 VICTAULIC 3" - -
NX /LN-K 1014P 4335 2250 2170 2300 1500 2300 1500 1500 VICTAULIC 3" - -
NX /LN-K 1114P 4335 2250 2170 2350 1500 2300 1500 1500 VICTAULIC 4" - -
NX /LN-K 1214P 4335 2250 2170 2370 1500 2300 1500 1500 VICTAULIC 4" - -
NX /SL-K 0614P 3160 2250 2170 1550 1500 2300 1500 1500 VICTAULIC 3" - -
NX /SL-K 0714P 3160 2250 2170 1730 1500 2300 1500 1500 VICTAULIC 3" - -
NX /SL-K 0814P 4335 2250 2170 2030 1500 2300 1500 1500 VICTAULIC 3" - -
NX /SL-K 0914P 4335 2250 2170 2170 1500 2300 1500 1500 VICTAULIC 3" - -
NX /SL-K 1014P 4335 2250 2170 2300 1500 2300 1500 1500 VICTAULIC 3" - -
NX /SL-K 1114P 5510 2250 2170 2700 1500 2300 1500 1500 VICTAULIC 4" - -
NX /SL-K 1214P 5510 2250 2170 2730 1500 2300 1500 1500 VICTAULIC 4" - -
NX /D /K 0614P 3160 2250 2170 1510 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /K 0714P 3160 2250 2170 1680 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /K 0814P 3160 2250 2170 1690 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /K 0914P 3160 2250 2170 1830 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /K 1014P 4335 2250 2170 2250 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /K 1114P 4335 2250 2170 2300 1500 2300 1500 1500 VICTAULIC 4" VICTAULIC 1" 1/2
NX /D /K 1214P 4335 2250 2170 2330 1500 2300 1500 1500 VICTAULIC 4" VICTAULIC 1" 1/2
NX /D /LN-K 0614P 3160 2250 2170 1550 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /LN-K 0714P 3160 2250 2170 1730 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /LN-K 0814P 3160 2250 2170 1740 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /LN-K 0914P 3160 2250 2170 1870 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /LN-K 1014P 4335 2250 2170 2300 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /LN-K 1114P 4335 2250 2170 2350 1500 2300 1500 1500 VICTAULIC 4" VICTAULIC 1" 1/2
NX /D /LN-K 1214P 4335 2250 2170 2370 1500 2300 1500 1500 VICTAULIC 4" VICTAULIC 1" 1/2
NX /D /SL-K 0614P 3160 2250 2170 1550 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /SL-K 0714P 3160 2250 2170 1730 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /SL-K 0814P 4335 2250 2170 2030 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /SL-K 0914P 4335 2250 2170 2170 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /SL-K 1014P 4335 2250 2170 2300 1500 2300 1500 1500 VICTAULIC 3" VICTAULIC 1" 1/2
NX /D /SL-K 1114P 5510 2250 2170 2700 1500 2300 1500 1500 VICTAULIC 4" VICTAULIC 1" 1/2
NX /D /SL-K 1214P 5510 2250 2170 2730 1500 2300 1500 1500 VICTAULIC 4" VICTAULIC 1” 1/2
NX_0614P_1214P_201107_EN HFC 410A35
NX
LEGEND OF PIPE CONNECTIONS
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