Refrigerant gas R410A Can be combined with a remote condenser Integral control and adjustment Integrated hydronic module Condenserless chiller NECS_ME_0152_1604_201004_GB r HFC R-410A (The photo of the unit is indicative and may change depending on the model) Climaveneta Technical Bulletin 0152 - 1604 39,5 - 432 kW NECS-ME
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NECS-ME R-410A HFC - Prime Climate€¦ · II NECS_ME_0152_1604_201004_GB NECS-ME HFC R410A SUMMARY NECS-ME 0152 - 1604 Liability disclaimer This bulletin is not …
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Refrigerant gas R410ACan be combined with a remote condenser Integral control and adjustment Integrated hydronic module
Condenserless chiller
NECS_ME_0152_1604_201004_GB
r HFCR-410A
(The photo of the unit is indicative and may change depending on the model)
Climaveneta Technical Bulletin
0152 - 160439,5 - 432 kW
NECS-ME
II NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
SUMMARYNECS-ME
0152 - 1604
Liability disclaimerThis bulletin is not exhaustive about: installation, use, safety precautions, handling and transport. Refer to “General Manual for Installation” for further informations.This bulletin refers to standard executions, in particular for dimension, weight, electric, hydraulic, aeraulic and refriger-ant connections (whereas applicable). Contact Climaveneta Commercial Offi ce for further drawings and schemes.
Climaveneta declines any liability derived from the bulletin’s use. This bulletin is of exclusive property of Climaveneta, and all forms of copy are prohibited. The data contained herein are subject to variation without no-tice.
Company quality system certi-fi ed to UNI EN ISO 9001
1. Product presentation 1.1 NECS-ME units 1.2 R410A refrigerant 1.3 Combination with a remote condenser 1.4 Integral control and adjustment 1.5 Hydronic unit incorporated 1.6 Silent running 1.7 Ease of installation 1.8 Versatility 1.9 Usability
2. Unit description 2.1 Standard unit composition 2.2 Certifi cation, Reference standard 2.3 Tests 2.4 Controller 2.5 Accessories 2.6 Control unit with LCD display (standard)
3. Technical data 3.1 General technical data 3.2 Cooling capacity performance
4. Operating range5. Hydraulic data
5.1 Water fl ow and pressure dro 5.2 Hydronic groups
6. Electrical data7. Full load sound level8. Dimensional drawings9. Legend of pipe connections 10. Remote condensers 11. Combinations of evaporating units and remote condensers
IntroductionThis section contains general information on the NECS-ME range of products. For detailed information refer to the specifi c sections in this bulletin.
1.1 NECS-ME unitsThe NECS-ME chillers are a range of remote-condensation liq-uid units running on R410A ecological gas.They are indoor units with hermetic scroll compressors in a single-circuit (2-compressor units) and twin-circuit (4-compres-sor unit) tandem confi guration, and braze-welded plate heat exchangers.
1.2 R410A refrigerantThe use of R410A has improved the energy effi ciency of the units, in full respect of the environment (O.D.P.=0)
1.3 Combination with a remote condenser Compact units designed for residential and commercial sys-tems.
1.4 Integral control and adjustment The evaporating unit is supplied complete with integral micro-processor control and optional connection to a remote con-denser.
1.5 Hydronic unit incorporated The integrated hydronic unit comprises the main hydraulic components; it is available in various confi gurations with single or dual orthogonal pumps and high or low heads.
1.6 Silent runningThe NECS-ME chillers stand out for their silent running. If specifi cally requested, the casing of the unit can incorporate a layer of soundproofi ng made from high intermediate density conoid sandwich material which reduces noise suffi ciently to allow NECS-ME to be used in residential and commercial ar-eas without having to install it in dedicated rooms (technical rooms). The benefi t in terms of noise reduction is 4dB(A) in the models with 2 compressors and 10dB(A) in the models with 4 compressors.
1.7 Ease of installationAll the connections of the NECS-ME units are located on the side in order to simplify installation operations. This feature also makes it possible to save space as the units can be posi-tioned near the perimeter walls without compromising access to the internal components during maintenance.
1.8 Versatility On request, the NECS-ME units can be fi tted with an inte-grated pump unit for circulating the liquid in the system, with a high or low head depending on the various application re-quirements. As well as the primary pump, it is also possible to add an auxiliary circulation pump which starts automatically if the former develops a fault. This makes it possible to respect the harshest safety aspects of the system, whilst allowing the pumps to be rotated to balance operating hours (thus prevent-ing risks of mechanical breakage) and to manually select one of the two pumps.
1.9 Usability The electronic controller of the NECS-ME features a program-mable menu containing the most popular European languages which the user can choose depending on the country in which the unit is used (available standard in the 4-compressor unit, in the reduced mode in the 2-compressor version).
1 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
Liquid chiller with remote condensation Water-cooled indoor unit for producing chilled water, with con-nection to a remote condenser fi tted with hermetic rotary scroll compressors running on R410A, braised-welded plate exchang-ers and a thermostatic expansion valve. Base and panelling in hot-galvanised and painted sheet steel.
2.1 Standard unit composition Structure Base and frame in hot-galvanised shaped sheet steel with a suitable thickness.External panelling in PET-treated colaminate sheet, suitably thick, built to allow total access to the internal components, ventilation of the compressor chamber (standard for NECS-ME 0152..0612, option for all the other units). Acoustic insulation of the panel with 30 mm thick Fiberform available as an acces-sory. Panels fi xed with metric screws (not self-tapping).
Refrigerant circuitMain components of the refrigerant circuit:- single-circuit unit with two compressors in a tandem confi gu-
ration (NECS-ME 0152..0612)- twin-circuit unit with two compressors in a tandem confi gura-
tion on both circuits (NECS-ME 0612..1604)- R410A refrigerant- mechanical thermostatic valves- dryer fi lter,- refrigerant line sight glass with humidity indicator- high pressure safety valve - low pressure safety valve- high and low pressure transducers- high and low pressure gauges on all circuits (NECS-ME
0604..1604).
CompressorRotary hermetic scroll compressor in a tandem layout complete with oil sump heater, electronic overheating protection with cen-tralised manual reset and a two-pole electric motor.
User side exchangerAISI 316 steel braze-welded plate exchanger. The heat ex-changer is insulated with a closed-cell condensation proof lining in neoprene. When the unit is working, it is protected against lack of fl ow by a differential pressure switch mounted on the water side. The unit can work with antifreeze mixtures at exchanger outlet temperatures as low as -8°C.
Electric power and control panel Electric power and control panel, built to EN 60204-1/EC 204-1 standards, complete with:- control circuit transformer,- general door lock isolator,- fuses and contactors for compressors (NECS-ME
0604..1604)- circuit breakers on loads (NECS-ME 0152..0612)- numbered electric cables (NECS-ME 0152..0612)- auxiliary signal 4..2OmA for unit operating setpoint offset
(NECS-ME 0604..1604)- Keyboard with multi-language interface and LCD display
(NECS-ME 0604..1604)
- remote ON/OFF terminals- spring terminals- pump enable relays (only for units without a standard hydronic
unit)- manual and automatic pump rotation system in case pumps
stop (only for units with a two-pump hydronic unit)- automatic pump operation rotation system for balancing oper-
ating hours (only for units with a two-pump hydronic unit)- terminals for cumulative alarm block (BCA)- input voltage: 400V~ ±10% - 50Hz - 3N. 2.2 Certifi cation, Reference standardsThe machine complies with the following directives and their amendments:- 2006/42/EC Machinery Directive.- E.C.D. 89/336/EEC + 2004/108/EC.- 2006/95/EC Low Voltage Directive.- 97/23/EC Pressure Equipment Directive. Module A1. TÜV-
Italia 0948
2.3 TestsTests performed throughout the production process, as indicat-ed in ISO9001. Performance or noise tests can be performed by highly qualifi ed staff in the presence of customers.Performance tests include the measurement of:- electrical specifi cations- water fl ow rates- operating temperatures- power input- power output- pressure drops on the water side exchanger both at full load (at selection conditions and at the most critical conditions for the condenser) and at part load conditions.During performance testing the main alarm states can also be simulated.Noise tests are performed to check noise emissions according to ISO3744.
2. UNIT DESCRIPTION
2 NECS_ME_0152_1604_201004_GB
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HFC R410A
2.4 ControllerThe controller is available in two formats:- W3000 Base: keyboard and LED display.- W3000SE Compact: the keypad features functional controls and a complete LCD display that allows assessment and inter-vention on the unit by means of a multi-level menu with selecta-ble user’s language.The diagnostics comprises a complete alarm management sys-tem, including “black box” (via PC) functions and an alarm log (via display or also PC) for optimised analysis of unit perform-ance.Compatibility with the remote keyboard managing up to 10 units.The presence of the programmable timer allows the creation of an operating profi le containing up to 4 typical days and 10 time bands.Common features: Heat adjustment is based on the exclusive QuickMind algorithm, featuring a self-adaptive logic which is useful for systems with a low water content. Alternatively, pro-portional or proportional-integral adjustments can be set.For systems featuring more than one unit, the resources can be adjusted using optional propriety devices. Consumption and performance accounting can also be implemented. Supervision can be easily developed via proprietary devices or the integra-tion in third party systems by means of the most common pro-tocols as ModBus, Bacnet, Bacnet-over-IP, Echelon LonWorks protocols.
2.5 Accessories- Soft start
Electronic device adopted to manage the inrush current. Break down of the inrush current as soon as the electrical mo-tor is switch on, lower motor’s mechanical wear, favourable sizing for the electrical system.
- Remote phase-sequence controlRelay for controlling the phase-sequence of mains. Protects loads against faults due to incorrect connection of the electric line.
- Compressors’ on/off signalAuxiliary contacts providing a voltage-free signal. Allows remote signalling of compressor’s activation or remote control of any auxiliary loads.
- ModBUS connectivityInterface module for ModBUS protocols. Allows integration with BMS operating with ModBUS proto-col.
- BACnet connectivityInterface module for BACnet protocols. Allows integration with BMS operating with BACnet protocol.
- Echelon connectivityInterface module for Echelon systems. Allows integration with BMS operating with Echelon procotls.
- Auxiliary signal 4-20mA4..20mA analogue input. Allows to change the operating set-point according to the value of current applied to the analogue input. Enforce Energy Saving policies
- HP and LP gaugesHigh and low pressure gauges (only for sizes 0152..0612). Allows immediate reading of the pressure values on both low and high pressure circuits.
- Compressor suction valveShut-off solenoid valve on compressor’s suction circuit. Simplifi es maintenance activities.
- Compr. discharge line valveShut-off solenoid valve on compressor discharge circuit. Simplifi es maintenance activities.
- Var.fan speed low amb.controlAcoustic encolsure on both compressor and pump sections (when applicable). Noise emission reduction.
- Automatic circuit breakersOver-current switch on the major electrical loads. It protects compressors and/or fans from possible current peaks.
- Input remote demand limitDigital input (voltage free) It permits to limit the unit’s power absorption for safety rea-sons or in temporary situation.
- Liquid line solenoid valveSolenoid valve on the refrigerant circuit inlet (only for sizes 0604..1604). It avoids liquid to migrate toward the compressors when they are off.
- Multi-units control devices(Sequencer, Manager3000, FWS3000) Separately supplied.
3 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
2.6 Control unit with LCD display (standard)The new “W3000 Base” control unit is installed on all NECS-ME 0152..0612 units.The new “W3000SE Compact” control unit is installed on all NECS-ME 0604..1604 units.
Main functions: QuickMind, local and remote FWS supervi-sion, dual set point management, etc, confi rm Climaveneta’s commitment to continually developing its electronics technol-ogy. The heat pumps, moreover, are fi tted with the original Cli-maveneta defrosting control system called “Autotuning Defrost” which considerably reduces defrosting times, thus improving the energy performance of the unit. Interfaces with BMS sys-tems: METASYS®, MODBUS®, LONWORKS®, SIEMENS®, TREND®.
Black Box logs data relative to 200 alarm events which can be printed with a personal computer.
QuickMind is a special control unit which monitors the main operating parameters, predicts system behaviour and antici-pates unit settings in order to constantly optimise performance; it allows both return and delivery water temperatures to be chosen as adjustment parameters. It can reduce outlet tem-perature fl uctuations even with a small amount of water in the system. When, for dual-compressor chillers featuring a maximum of 12 start-ups per hour and using a traditional ad-justment system, the minimum recommended water content is 5.5 l/kW. QuickMind ensures the same chiller operates cor-rectly even with a water content of just 2.5 l/kW and considera-bly reduces outlet temperature fl uctuations. The above graph shows that outlet temperature fl uctuations with QuickMind are limited to 4.3 °C as opposed to 7.54°C if the traditional adjust-ment system were used, without even ensuring an acceptable minimum compressor start time.
2
3
5
4
65.9
4.56
7.54
11.34
3 3
3.93.3 3.2 3.1
7
8
10
9
Tem
per
atur
a in
usc
ita (°
C)
Variazione temperatura in uscita
11
12
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5
4.3
3.53
1110.5
3.52 3.52 3.52 3.52 3.523,68 3.52
Tempo minimo di accensione compressore non accettabile
Regolazione a gradini
Quickmind
Variation output temperature
Out
put t
empe
ratu
re (°
C)
Minimum water content in the plant lt/kW
Not acceptable minimum starting time compressors
Step-wise regulation
4 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
Control unit with LCD display (optional for NECS-ME 0152..0612)
Remote keyboardAs an alternative to the standard keyboard, the NECS has a W3000 Compact operator panel with liquid crystal display. (LCD)This keyboard is standard for the NECS-ME 0604..1604 units.
This keyboard features a user interface for 3 European lan-guages that can be selected by the user. Two of these are preset (Italian and English) and the third can be chosen from
French, German, Spanish, Swedish and Russian (to specify when ordering). This allows the control unit interface to be cho-sen to suit the country of destination or, thanks to English, to be completely independent for all geographical areas.This same type of operator panel is also available as a remote keyboard, to be connected to the unit by means of a serial con-nection up to a maximum distance of 200 metres without power supply (in this case power is supplied by the unit), or a maxi-mum of 500 metres with dedicated local power supply.
NoteThe remote keyboard may be connected to the unit without re-placing the W3000 Base operator panel originally provided on the unit. In this case the interface fi tted locally on the unit is ex-cluded, and access to the programming menus and the display of the machine status is present only the additional keyboard at remote level.
Instead, when the W3000 Base operator panel is replaced with the W3000 Compact panel, control of the unit is possible at both local and remote level. In this case the remote keyboard faithfully reproduces what is shown on the control unit on board the machine, further facilitating all the operations of confi guring and controlling the unit.
Total sound power dB(A) 73 74 74 74 75 76 774544 434342dB(A)Total sound pressure 4443
DIMENSIONS AND WEIGHTS (3)
Length Width Height Weight
mm.mm.mm.kg.
11306691255270
11306691255280
11306691255290
1130 669 1255 295
1130 669 1255 300
13108931496410
13108931496500
1 Plant (side) cooling exchanger water (in/out) 12/7 °C Condensation temperature 47 °C 2 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 Average sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level 3 Standard configuration - Not available
Total sound power dB(A) 77 78 78 79 79 86 875547 464645dB(A)Total sound pressure 5447
DIMENSIONS AND WEIGHTS (3)
Length Width Height Weight
mm.mm.mm.kg.
13108931496585
13108931496615
13108931496645
1310 893 1496 680
1310 893 1496 755
222710201780700
222710201780950
1 Plant (side) cooling exchanger water (in/out) 12/7 °C Condensation temperature 47 °C 2 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 Average sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level 3 Standard configuration - Not available
Total sound power dB(A) 88 89 90 91 91 91 915959 585756dB(A)Total sound pressure 5959
DIMENSIONS AND WEIGHTS (3)
Length Width Height Weight
mm.mm.mm.kg.
2227102017801125
2227102017801185
2227102017801250
2227 1020 1780 1330
2227 1020 1780 1370
2227102017801430
2227102017801480
1 Plant (side) cooling exchanger water (in/out) 12/7 °C Condensation temperature 47 °C 2 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 Average sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level 3 Standard configuration - Not available
Ethylene glycol and water mixtures, used as a heat-conveying fluid, cause a variation in unit performance. For correct data, use the factors indicated in the following table.
Performances are based on clean condition of tubes (fouling factor =1). For different fouling values, performance should be adjusted using the correction factors shown in the following table.
f1 - f2 - f3: capacity correction factorsfk1 - fk2 - fk3: compressor power input correction factorsfx1 - fx2 - fx3: total power input correction factors
Tc OUT [°C]: Heat exchanger temperature on source side (out)Tev OUT [°C]: Cold exchanger temperature on user side (out)
Limits to exchanger water temperature are valid within the minimum - maximum water flow range indicated in the Hydraulic Data section.
40
50
15100-10 20
60
48
30
-8 7
35
45
25
55
5-5
Tev OUT [°C]
Tc O
UT
[°C
]
13 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
SIZE Evaporator
K Q min m3/h
Q max m3/h
C.a. min m3
0152 1037 4,1 11,4 0,34
0182 664 4,8 13,2 0,39
0202 481 5,7 15,5 0,46
0252 360 6,4 17,4 0,52
0262 360 7,1 19,4 0,58
0302 154 8,5 23,1 0,69
0352 108 9,9 26,7 0,8
0412 108 11,1 30,1 0,9
0452 81 12,5 33,8 1,01
0512 63 14 37,8 1,13
0552 43 16,1 43,3 1,3
0604 42,4 18,2 48,8 1,46
0612 43 17,2 46,2 1,15
0704 30,4 19,9 53,3 1,33
0804 30,4 22,2 59,6 1,49
0904 23,7 25,2 67,6 1,69
1004 19,2 28,2 75,5 1,88
1104 13,7 32,2 86,2 2,15
1204 13,7 36,4 97,3 2,4
1404 11,2 41,4 110 2,77
1604 9,9 46,3 110 3,09
Water flow in the heat exchangers is given by:Q=Px0,86/Dt
Q: 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 Q2/1000
Q: water flow (m3/h)Dp: pressure drop (kPa)K: unit size ratio
K evap: standard mains filter includedQ min: minimum water flow admitted to the heat exchanger.Q max: maximum water flow admitted to the heat exchang-
er.W.c min.: minimum water content admitted in the plant, using
traditional control logic
5.1 Water flow and pressure drop
5.1 HYDRAULIC DATA
14 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
5.2 HYDRONIC UNIT
Available configurationsHydronic kit with one pumpHydronic kit with two pumps
Compact units Plug and Play.
The units in the NECS system are fitted standard with a hy-dronic group. This houses all the main hydraulic components, thereby optimising hydraulic and electric installation space, time and cost.The innovative QuickMind control fitted to the units in the NECS system, has been designed to work on systems with a low wa-ter content, offering highly professional alternatives to the in-stallation of systems featuring storage units.For special applications, a tank to install inside the unit is avail-able on request.
2-pole low head pumpHorizontal one-piece centrifugal pump with one impeller, axial suction and radial delivery, AISI 304L stainless steel pump body impeller. The section of the shaft in contact with the liquid is made from stainless steel. Mechanical seal made from compo-nents in ceramics/carbon/NBR/AISI304. Three phase electric motor protected to IP55, insulation class F, suitable for continu-ous service.
2-pole high head pumpThe hydronic group in all versions of the 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.
Second pumpA second stand-by pump for high or low pressures is available 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. The two-pump hydron-ic assembly is also fitted with check valves to ensure the unit works correctly.
Special pumpsFor pumps with different configurations, please contact our sales department.
Water-side mechanical filter (recommended)Y-filter designed and built to capture the impurities in the hy-draulic circuit. It is fitted with a 0.9 mm stainless steel mesh car-tridge which can be replaced without removing the valve body from the piping.
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
15 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
Configuration of hydronic unit with 1/2 pumps (0152-0612)
The hydronic group comprises:- EV Evaporator- Pd Differential pressure switch- Pe Evaporator circulation pump- SC Discharge valve- SF Relief valve- S1 Evaporator water inlet probe
- S2 Evaporator water outlet probe- TP Drain plug- VA Safety valve- VR Check valve (with 2 pumps only)
CIRCUIT WITH TWO OPTIONAL PUMPS
The hydronic group comprises:- EV Evaporator- Pd Pressostato differenziale- Pe Evaporator circulation pump- SC Discharge valve- SF Relief valve- S1 Evaporator water inlet probe- S2 Evaporator water outlet probe
- S3 Evaporator water common outlet probe (installed by
the customer)- TP Drain plug- VA Safety valve- VR Check valve (with 2 pumps only)
CIRCUITS WITH TWO OPTIONAL PUMPS
RETURN FROM HYDRAULIC SYSTEM
DISCHARGE TO HYDRAULIC SYSTEM
CIRCUITS WITH TWO OPTIONAL PUMPS
RETURN FROM HYDRAULIC SYSTEM
DISCHARGE TO HYDRAULIC SYSTEM
16 NECS_ME_0152_1604_201004_GB
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HFC R410A
Size Pf (1)[kW]
Q (1)[m3/h]
Pumpref.
F.L.I.[kW]
F.L.A.[A]
SA[A]
1 pump
KP1 Dpu[kPa]
Hu[kPa]
0152 39.5 6.79 A 1.1 2.5 13.7 1037 185,3 136
0182 45.8 7.88 A 1.1 2.5 13.7 664 181,2 138
0202 53.6 9.22 A 1.1 2.5 13.7 481 175,7 132
0252 60.5 10.41 A 1.1 2.5 13.7 360 170,5 128
0262 67.4 11.59 A 1.1 2.5 13.7 360 164,9 111
0302 80.2 13.79 A 1.1 2.5 13.7 154 153,7 123
0352 95.8 15.96 B 1.5 3.2 20.6 108 176,22 145
0412 104.5 17.97 B 1.5 3.2 20.6 108 164,04 126
0452 117.4 20.19 C 2.2 4.8 37.3 81 204,85 166
0512 131.4 22.60 C 2.2 4.8 37.3 63 197,86 159
0552 150.7 25.92 C 2.2 4.8 37.3 43 187,36 149
0612 169.9 29.22 D 2.2 5.0 36.8 42,4 185,94 138
0604 160.8 27.66 D 2.2 5.0 36.8 43 192,53 154
0704 185.6 31.92 D 2.2 5.0 36.8 30,4 173,58 130
0804 207.4 35.67 E 3.0 6.0 38.3 30,4 184,56 142
0904 235.4 40.49 E 3.0 6.0 38.3 23,7 177,95 134
1004 263.0 45.24 E 3.0 6.0 38.3 19,2 170,15 122
1104 300.5 51.96 F 4.0 8.1 62.3 13,7 203,29 157
1204 339.2 58.34 F 4.0 8.1 62.3 13,7 190,25 131
1404 386.5 66.48 G 5.5 10.1 97.2 11,2 220,47 152
1604 431.6 74.24 H 7.5 13.7 133.3 9,9 234,87 176
2-pole low head pump
(1) Values refer to rated operating conditionsPf Cooling capacity of unitQ Flow of water to evaporatorF.L.I. Power absorbed by pumpF.L.A. Current absorbed by pumpDpu Total pressure drop of hydronic groupHu Working headSA Maximum starting current
Coefficients for calculating pressure drops comprise standard mains filter:K P1 Unit with Hydronic group and one pump
* The presence of the dual (second) pump can noticeably re-duce the useful head due to a different hydraulic circuit. Reduc-tion approx. 5%.
0
50
100
150
200
250
300
350
0 20 40 60 80 100 120
Q [m3/h]
Hp
[Pa]
A
B C
D E
IG
F
H
17 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
Size Pf (1)[kW]
Q (1)[m3/h]
Pumpref.
F.L.I.[kW]
F.L.A.[A]
SA[A]
1 pump
KP1 Dpu[kPa]
Hu[kPa]
0152 39.5 6.79 I 3.0 5.6 57.6 1037 252,5 203
0182 45.8 7.88 I 3.0 5.6 57.6 664 251,1 208
0202 53.6 9.22 I 3.0 5.6 57.6 481 249,3 205
0252 60.5 10.41 I 3.0 5.6 57.6 360 247,5 204
0262 67.4 11.59 I 3.0 5.6 57.6 360 245,5 191
0302 80.2 13.79 L 2.2 5.0 36.8 154 233,02 207
0352 95.8 15.96 L 2.2 5.0 36.8 108 228,87 203
0412 104.5 17.97 M 3.0 6.0 38.3 108 287,64 253
0452 117.4 20.19 M 3.0 6.0 38.3 81 281,16 246
0512 131.4 22.60 M 3.0 6.0 38.3 63 273,10 236
0552 150.7 25.92 M 3.0 6.0 38.3 43 260,20 223
0612 169.9 29.22 N 4.0 8.1 62.3 42,4 252,61 266
0604 160.8 27.66 M 3.0 6.0 38.3 43 312,97 214
0704 185.6 31.92 N 4.0 8.1 62.3 30,4 299,97 260
0804 207.4 35.67 N 4.0 8.1 62.3 30,4 279,83 228
0904 235.4 40.49 O 5.5 10.1 97.2 23,7 291,13 247
1004 263.0 45.24 O 5.5 10.1 97.2 19,2 281,73 235
1104 300.5 51.96 O 5.5 10.1 97.2 13,7 265,81 222
1204 339.2 58.34 P 7.5 13.7 133.3 13,7 327,27 272
1404 386.5 66.48 P 7.5 13.7 133.3 11,2 303,35 241
1604 431.6 74.24 Q 11.0 20.0 179.6 9,9 321,22 263
2-pole low head pump
(1) Values refer to rated operating conditionsPf Cooling capacity of unitQ Flow of water to evaporatorF.L.I. Power absorbed by pumpF.L.A. Current absorbed by pumpDpu Total pressure drop of hydronic groupHu Working headSA Maximum starting current
Coefficients for calculating pressure drops comprise standard mains filter:K P1 Unit with Hydronic group and one pump
* The presence of the dual (second) pump can noticeably re-duce the useful head due to a different hydraulic circuit. Reduc-tion approx. 5%.
F.L.I. Full load power input at max admissible conditionF.L.A. Full load current at max admissible conditionL.R.A. Locked rotor amperes for single compressorS.A. Starting current
(1) Values calculated referring to the version with the maxi-mum number of fans working at the max absorbed current
(2) Safety values to be considered when cabling the unit for power supply and line-protections
Power supply: 400/3/50Voltage tolerance: 10%Maximum voltage unbalance: 3%
Plant (side) cooling exchanger water (in/out) 12/7 °CCondensation temperature 47 °CSound 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 Such certification refers specifically to the sound Power Level in dB(A). This is therefore the only acoustic data to be considered as binding.
Working conditions
SIZE Octave band [Hz] at 10 m2000100050025012563 80004000
Plant (side) cooling exchanger water (in/out) 12/7 °CCondensation temperature 47 °CAverage sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained from the sound power level
REMARKS:For installation purposes, please refer to the documentation sent after the pur-chase-contract. This technical data should be considered as indicative.
USE N°4 LIFTING ROPES WITH EQUAL LENGHT ONLY LIFTING
SUPPORTING BASEMENT
LIQUID LINE CONNECTION
DELIVERY LINE CONNECTION
EVAPORATOR WATER INLET
EVAPORATOR WATER OUTLET
POWER INLET
MAIN ISOLATOR HANDLE
NECS-ME
A2 NECS_ME_0152_1604_201004_GB HFC R410A
1
2
3
4
5
6
C1 C2
2
1
3
4
A B
6
H
R1 R2
R3
5
3
4
REMARKS:For installation purposes, please refer to the documentation sent after the pur-chase-contract. This technical data should be considered as indicative.
CLIMAVENETA may modify them at any moment.
0152-0612WITH PUMPS
USE N°4 LIFTING ROPES WITH EQUAL LENGHT ONLY LIFTING
SUPPORTING BASEMENT LIQUID LINE CONNECTION
DELIVERY LINE CONNECTION
EVAPORATOR WATER INLET
EVAPORATOR WATER OUTLET
POWER INLET
MAIN ISOLATOR HANDLE
NECS-ME
A3 NECS_ME_0152_1604_201004_GB HFC R410A
REMARKS:For installation purposes, please refer to the documentation sent after the pur-chase-contract. This technical data should be considered as indicative.
USE N°4 LIFTING ROPES WITH EQUAL LENGHT ONLY LIFTING
SUPPORTING BASEMENT
EVAPORATOR WATER INLET
EVAPORATOR WATER OUTLET
LIQUID LINE CONNECTION
DELIVERY LINE CONNECTION
POWER INLET
MAIN ISOLATOR HANDLE
NECS-ME
A4 NECS_ME_0152_1604_201004_GB HFC R410A
REMARKS:For installation purposes, please refer to the documentation sent after the pur-chase-contract. This technical data should be considered as indicative.
CLIMAVENETA may modify them at any moment.
0604-1604WITH PUMPS
3
4
5
6
1
2
R1 R2
R4
R3
5
1
2
4
3
61
4
B
H
A
C1 C2 C3 C43
C1 C2 C3 C4
2
USE N°4 LIFTING ROPES WITH EQUAL LENGHT ONLY LIFTING
SUPPORTING BASEMENT
EVAPORATOR WATER INLET
EVAPORATOR WATER OUTLET
LIQUID LINE CONNECTION
DELIVERY LINE CONNECTION
POWER INLET
MAIN ISOLATOR HANDLE
NECS-ME
A5 NECS_ME_0152_1604_200911_GB HFC R410A
SizeDIMENSIONS AND WEIGHTS
CLEARANCE (See fol. page)NO PUMPS ONE PUMP TWO PUMPS
A [mm] B [mm] H [mm] P [kg] A [mm] B [mm] H [mm] P [kg] A [mm] B [mm] H [mm] P [kg] R1 [mm] R2 [mm] R3 [mm] R4 [mm]
Pipe threads where pressure-tight joints are not made on the threads - Designation, dimensions and tolerances
Used terminology: G: Pipe threads where pressure-tight joints are not made on the
threadsA: Close tolerance class for external pipe threads where pres-
sure-tight joints are not made on the threadsB: Wider tolerance class for external pipe threads where pres-
sure-tight joints are not made on the threads
Internal threads: G letter followed by thread mark (only toler-ance class)
External threads: G letter followed by thread mark and by A let-ter for A class external threads or by B letter for B class external threads.
UNI ISO 7/1
Pipe threads where pressure-tight joints are made on the threads - Designation, dimensions and tolerances
Used terminology: Rp: Internal cylindrical threads where pressure-tight joints are
made on the threadsRc: Internal conical threads where pressure-tight joints are
made on the threadsR: External conical threads where pressure-tight joints are
made on the threadsInternal cylindrical threads: R letter followed by p letterInternal conical threads: R letter followed by c letterExternal conical threads: R letter
Designation Description
UNI ISO 7/1 - Rp 1 1/2Internal cylindrical threads where pressure-tight joints are made on the threads, defined by stand-ard UNI ISO 7/1 Conventional ø 1 1/2”
UNI ISO 7/1 - Rp 2 1/2Internal cylindrical threads where pressure-tight joints are made on the threads, defined by stand-ard UNI ISO 7/1Conventional ø 2 1/2”
UNI ISO 7/1 - Rp 3Internal cylindrical threads where pressure-tight joints are made on the threads, defined by stand-ard UNI ISO 7/1Conventional ø 3”
UNI ISO 7/1 - R 3External conical threads where pressure-tight joints are made on the threads, defined by standard UNI ISO 7/1Conventional ø 3”
UNI ISO 228/1 - G 4 B
Internal cylindrical threads where pressure-tight joints are not made on the threads, defined by standard UNI ISO 228/1Tolerance class B for external threadConventional ø 4”
Conventional diameter value [in inches] identifies short thread designation, based upon the relative standard. All relative values are defined by standards.As example, here below some values:
UNI ISO 7/1 UNI ISO 228/1Conventional ø 1” 1”
Pitch 2.309 mm 2.309 mm
External ø 33.249 mm 33.249 mm
Core ø 30.291 mm 30.291 mm
Thread height 1.479 mm 1.479 mm
A6 NECS_ME_0152_1604_201004_GB
NECS-ME
HFC R410A
10. REMOTE CONDENSERS
The new Climaveneta’s remote condensers NCE type are available within three different acoustical versions:
standard version /B• low-noise version /LN• super-silenced version /SL•
All versions are available for both horizontal (H) and vertical (V) air fl ow installation. The NCE remote condensers are provided with a single ventila-tion management. The choice of the number of circuits affects the refrigerant connections and / or the quantity of electrical signals provided to the fans speed management, according to the selected version.
Standard version (/B)Unit equipped with 6 poles motor fan and D connections (Del-ta). Fan speed management based on phase cutoff control is avai-lable as option. In this confi guration the units comes standard with a built-in electrical board.
Low-noise version (/LN)Unit equipped with 6 poles motor fan and Y connections (Star). Fan speed management based on phase cutoff control is avai-lable as option. In this confi guration the units comes standard
with a built-in electrical board.
Super-silenced Version SUPER-SILENZIATA (/SL)Unit equipped with 8 poles motor fan and Y connections (Star). Fan speed management based on frequency control is avai-lable as option (inverter). In this confi guration the units comes standard with a built-in the electrical board.
10.1 Electrical boardThe NCE remote condensers come standard without any elec-trical board. The NCE are provided with a junction box which includes the electrical connections of the fans.
The electrical board is provided as standard with all the fans speed management options (phase cutoff signal and inverter control), provided with all here below listed components:
main switch• fuses on mains• system on/off light signalling• power contactor for fans on/off • control circuit transformer• protection fuses on both primary and secondary circuits • auxiliary relay for thermal protection remote signalling.•
10.2 Product code
NCE 3 2 8 C /B - H 1C E R A
NCE
3
2
8
C
/B
H
1C
E
Remote condensers type:NCE = for NECS-ME units working with R410A refrige-rant
Number of fans per row
Number of fan rows
Diameter of fans: 6 = 630 mm 8 = 800 mm
Number of coil rows: 2 rows = A 3 rows = B 4 rows = C Noise level: /B = standard version /LN = quiet version /SL = super-silenced version Air fl ow: H = horizontal V = vertical
Number of refrigerant circuits: 1C 2C
Electrical connections: E = junction box Q = with built-in electrical board (standard with fan each speed management)
R
A
Fan speed management: R = phase cutoff control (/B and /LN version) Z = inverter control (/SL version only)
Anti-vibration mountings
Note:Values indicated into outlined cells may not be included
To select the correct NCE remote condensing unit to combine with the NECS-ME evaporating units with higher power ratings
than those indicated in the above tables, please contact the Climaveneta sales offi ce.
Operating conditions Taria= 30°CDelta Tcd= 17°C
Pt Total powerPa Power inputQ CapacityLw Sound power
Example of choice: Condenserless unit NECS-ME 0704(TH2O) Chilled water 12/7°C(Tae) External air temperature 30°C(Pf) Cooling capacity 186 kWf(Pt) Power to clear 239.7 kWt con Tcd=45°C
The DT value is based on the gap between the condensing temperature and the outdoor temperature:Dt = Tcd - Tae =15°Cthe following table shows F1=0.88(Pn) Power rating NCE = Pt/F1= 272 kWt
Model of NCE remote condenser: Vers. B: NCE 418B/B (272 kW) o NCE418C/B (300 kW)Vers. LN: NCE328A/LN (264 kW) o NCE328B/LN (331 kW) Vers. SL: NCE328B/SL(259 kW) o NCE328C/SL (273 kW)