R410A refrigerant Total versatility Integrated hydronic unit on evaporator/condenser side Integrated condensation control Water-cooled liquid chillers and water-to-water heat pumps NECS_W__0152_0612_200907_GB r HFC R-410A (The photo of the unit is indicative and may change depending on the model) Climaveneta Technical Bulletin 0152 - 0612 43,4 - 186 kW NECS-W
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R410A refrigerant
Total versatility
Integrated hydronic unit on evaporator/condenser side
Integrated condensation control
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Water-cooled liquid chillers and water-to-water heat pumps
NECS_W__0152_0612_200907_GB
r HFC
R-410A
(The photo of the unit is indicative and may change depending on the model)
Climaveneta Technical Bulletin
0152 - 0612
43,4 - 186 kW
NECS-W
II NECS-W_0152_0612_200907_GB
NECS - W
HFC R410a
SUMMARYNECS-W
0152 - 0612
Liability disclaimer
This 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 refrigerant
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 information contained in this document may be modifi ed
without prior notice.
Company quality system
certifi ed to UNI EN ISO 9001
This company partici-
pates in the Eurovent
Certifi cation Programme.
The products are listed in the
Directory of certifi ed products.
Eurovent certifi cation ap-
plied to units with cooling
capacity up to l500 kW for
air cooled water chillers and
water cooled liquid chillers.
1. Product presentation
1.1 Energy indices ESEER and IPLV
1.2 Using the energy indices
1.3 Control unit with LED display
1.4 Integrated Hydronic Unit (Optional)
2. Unit description
2.1 Standard unit composition
2.2 Electric power and control panel
2.3 Accessories
3. Technical data
3.1 General technical data
3.2 Cooling capacity performance
3.3 Heat pump capacity performance
4. Operating range
5. Hydraulic data
5.1 Water fl ow and pressure drop
6. Hydronic groups
7. Electrical data
8. Full load sound level
9. Dimensional drawings
10. Free spaces - lifting mode - symbols
11. Legend of pipe connections
pg. n° III
pg. n° V
pg. n° V
pg. n° VI
pg. n° VII
pg. n° 1
pg. n° 1
pg. n° 1
pg. n° 1
pg. n° 2
pg. n° 2
pg. n° 4
pg. n° 8
pg. n° 12
pg. n° 13
pg. n° 13
pg. n° 14
pg. n° 19
pg. n° 20
pg. n° A1
pg. n° A3
pg. n° A4
III NECS-W_0152_0612_200907_GB
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HFC R410a
1. PRODUCT PRESENTATION
NECS, the new CLIMAVENETA R410A proposal
Scroll compressors, featuring high efficiency, low vibrations and low noise emissions.Flexible range. Available from 113 – 341 kW with 9 sizes and 5 versions.Part load efficiency with EER > 4.3New controller with QuickMind.Idrorelax, for turning your ideas into reality.
Climaveneta introduces its new NECS-W range of chillers and heat pumps with scroll compressors, plate exchangers and R-410A, with both one-circuit two compressors and two-circuit four compressors, focused on maximum efficiency and mini-mum noise emission
Why R-410AAlthough R-410A is a blend, it behaves just like a pure gas and features a negligible temperature glide. Thanks to its outstand-ing heat conductivity, R-410A contributes towards achieving high system efficiency. R-410A is also an ecological gas be-cause its high efficiency reduces electricity consumption andconsequently CO2 emissions and because it does not damage the ozone layer (ODP = 0).
The scroll compressor has been expressly redesigned for use with the new gas and is now even more compact and silent than before.
Complete versatilityNECS-W units are designed to fully satisfy any application or installation needs throughout a complete range of models, hy-dronic configurations and accessories. NECS-W is available in chiller mode (chilled water production), heat pump for hot wa-ter production (plus possible water side reversal) NECS-WHand finally heat pump with “refrigerant side reversal” NECS-WN (chilled/hot water production).
High efficiency at partial loadClimaveneta has designed NECS-W units with the goal of guaranteeing high efficiency at part load. The result achieved in the new singlecircuit dual-compressor is an ESEER up to 6.01, equivalent to a 33% saving in seasonal energy consump-tion compared to traditional R-407C double-circuit unit.
AdvantagesThe technological choices aimed to provide the maximum overall quality and the use of the most innovative technologies make NECS-W a unit able to ensure maximum energy effi-ciency, easy installation thanks to its compact size, versatility and settings for integration in the Idrorelax centralized hydronic system (www.idrorelax.it).
Reversibile heat pumpsAll NECS-W are available as NECS-WN heat pump model; this model completes the Climaveneta water cooled units range.Making a comparison between NECS-WN and a traditional “water side reversal” heat pump, reductions in installation spaces and an easier water connection layout are achieved. It means saving in installation costs and time.
Condensing pessure control deviceNECS-W electronic control can manage the best suitable con-densing pressure control device for every applications: pres-sostatic valve, 2 or 3 way modulating valve and inverter on the condenser pumps. NECS-W units can therefore be combined with dry-coolers, evaporating towers and geothermal probes, or used to cool open-loop water (e.g.: aqueducts, wells, water tables).
Kit pumps available on hot/cold sideNECS-W units are designed in order to minimize installation time. Units are available with both evaporator /condenser hy-dronic kit.Hydronic kits are fully accessorized with every hydronic device in order to obtain: space reduction, installation costs saving and shortening installation time.The units are plug&play thanks to the feasibility to install 1 or 2 pumps on board, high and low pressure head on both evapora-tor and condenser sides.
IV NECS-W_0152_0612_200907_GB
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HFC R410a
Consistent with corporate culture, the NECS-W series was designed to offer extremely high quality products with cutting-edge technology focusing on maximum energy efficiency at both full (EER) and part load (ESEER).
Energy efficiency at full loadNECS-W units stand out for their particularly high EER energy efficiency index. This result was achieved by focusing on the
design of plate exchangers both on the condenser side and on the evaporator side.These construction choices have both increased efficiency andprovided extremely high levels of reliability while significantly increasing compressor working life.
Energy efficiency at part loadAttention to energy consumption is continually gaining impor-tance, even at European level.The installed chiller unit works at full load only for extremely short periods of time while most of the energy is produced with part loads between 50 and 75%.
The ESEER parameter proposed by Eurovent, takes part load operating conditions into account when assessing unit effi-ciency.
Load Water temp. Weight
V NECS-W_0152_0612_200907_GB
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HFC R410a
1.1 Energy indices ESEER and IPLVIncreasingly closer attention is being paid towards the power consumption of air-conditioning equipment, both in Europe and elsewhere. For many years in the United States, reference has not just been made to efficiency at rated conditions. A valuation index is used which considers marginal operation of the unit at rated conditions as well as the increased usage when the separation stages of the cooling compressors are used. The valuation index adopted in the United States is called IPLV (Integrated Part Load Value) and is defined in the regulations issued by ARI (American Refrigeration Institute).
ARI Standard IPLVARI =(1*EER100% + 42*EER75% + 45*EER50% + 12*EER25%) /100
Where EER100%, EER75%, EER50%, EER25% are the efficiencies of the chiller in the various load conditions (100% - 75% - 50% and 25% respectively), calculated in the external air temperature conditions shown below.
The temperature of the water leaving the evaporator is consid-ered constant at 6.7°C in all load conditions, with a delta of 5°C in the full load condition.The multipliers 1, 42, 45 e 12 are the cooling performance coef-ficients in various load conditions statistically calculated by ARI on the basis of surveys conducted, for various types of build-ings and operating conditions, in 29 American cities.
ESEER Comparison:NECS-W single-circuit vs. traditional dual-circuit unit. The com-parison proves that the new single-circuit NECS-W units with R-410A feature significantly greater energy efficiency (ESEER + 38%) over traditional dual-circuit units with R-407C.
NECS-W 202 Traditional unit Energy efficiency percent difference
Single circuit R-410A Two scroll - two circuit R-407C NECS-W 202 vs a traditional R407-C unit
EER 100% 4,53 4,48 + 1%
EER 75% 5,55 4,55 + 22%
EER 50% 6,55 4,48 + 46%
EER 25% 5,88 4,55 + 26 %
ESEER 6,01 4,52 + 33%
NECS-W ESEER0152 5,81
0182 5,98
0202 6,01
0252 5,69
0262 5,59
0302 5,66
0352 5,80
0412 5,71
0452 5,79
0512 5,78
0552 5,93
0612 5,80
In Europe there is a proposal for EECCAC (Energy Efficiency and Certification of Central Air Conditioner)
Evaporator temp. leaving 6,7°CDeltaT full load 5°CLoad 100% 75% 50% 25%Cond. water temp. 30°C 26°C 22°C 18°C
1.2 Using the energy indicesAfter establishing which index to use and estimating the total power required by the system in the summer mode (in kWh), we can calculate seasonal electricity consumption (in kWh) us-ing the following formula:
Power absorbed = Power requested / Index of efficiency
The real power calculation can be obtained more correctly in a “dynamic” form, that is, considering the load performance curve at different external temperatures, the location and the refer-ence number of operating hours.These figures will allow plant consultants and designers to make their evaluations depending on the type of building, the place of installation and the type of heat load. etc.. They can also determine the energy index using the method that best re-flects plant requirements and can make comparisons between similar or equivalent systems using the same reference unit.
NECS-WH ESEER0152 5,81
0182 5,98
0202 6,01
0252 5,69
0262 5,59
0302 5,66
0352 5,80
0412 5,71
0452 5,79
0512 5,78
0552 5,93
0612 5,80
NECS-WN ESEER0152 5,67
0182 5,86
0202 5,88
0252 5,59
0262 5,52
0302 5,54
0352 5,72
0412 5,61
0452 5,69
0512 5,66
0552 5,80
0612 5,70
IPLV (Integrated Part Load Value) ARI Standard indicesESEER (European Seasonal Energy Efficiency Ratio) Indices for EECCAC proposal
VI NECS-W_0152_0612_200907_GB
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HFC R410a
All the two-compressor units are equipped, as a standard, withthe “W3000 Base” keyboard with LED display.On the four-compressor units the user friendly “W3000. Com-pact” keyboard with LCD is installed as a standard; also avail-able, on demand, for the two compressors units.The “W3000 Compact” onboard keyboard can be connected to a remote keyboard with LCD display.
Main functions: QuickMind, local and remote FWS supervi-sion, dual setpoint management, etc., confirm Climaveneta’s commitment to continually developing its electronics technol-
ogy. The heat pumps, moreover, are fitted with the original Climaveneta defrosting control system called “Smart 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.
1.3 Control unit with LED display
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 cho-sen as adjustment parameters. It can reduce outlet temperature fluctuations 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 adjustment system, the minimum recommended water content is 5.5 l/kW, Quick-
Mind ensures the same chiller operates correctly even with a water content of just 2.5 l/kW and considerably reduces outlet temperature fluctuations. The above graph shows that outlet temperature fluctuations with QuickMind are limited to 4.3°C asopposed to 7.54°C if the traditional adjustment system were used, without even ensuring an acceptable minimum compres-sor start time.
VII NECS-W_0152_0612_200907_GB
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HFC R410a
1.4 Integrated Hydronic Unit (Optional)
(Not available on NECH-WH)
The NECS-W series has been designed to reduce installation
work to a minimum.
The integrated hydronic unit incorporates all the hydraulic com-
ponents, thus optimising installation space, time and costs.
The integrated hydronic unit can be composed of:
- Horizontal one-piece centrifuge pump
- Pump inlet pressure gauge
- Discharge valve
- Air vent
- 3 bar safety valve
- Expansion tanks pre-pressurised
- Check valve (only if P2 is fi tted)
- Y-shaped water fi lter with stainless steel mesch (optional)
- External water connections with Victaulic pre-arrangement
Available confi gurations
Hydronic group 1 pump 2 poles low head
Hydronic group 2 pumps 2 poles low head
Hydronic group 1 pump 2 poles high head
Hydronic group 2 pumps2 poles high head
Units can be equipped with up to 4 pumps, two on the evapora-
tor and two on the condenser side.
For more details, see the “Hydronic Unit” section.
IDRORELAX
The NECS range of chillers with heat pump is available in
the IR confi guration; this allows units to be combined with
IDRORELAX, a centralised hydronic system for managing
cooling and heating requirements and producing hot running
water for residential, hotel and offi ce applications. Further
information on the IDRORELAX system can be obtained by
consulting the relative documentation.
1 NECS-W_0152_0612_200907_GB
NECS - W
HFC R410a
Water-to-water chillers
Water-to-water chillers. The unit is supplied with anti-freeze oil
and refrigerant and has been factory tested. On-site installation
therefore just involves making connections to the mains power
and water supplies.
Unit charged with R410A ecological refrigerant.
2.1 Standard unit composition
Supporting frame
Base and frame in thick hot-galvanised shaped sheet steel. All
parts polyesters-painted.
Panelling
The external panelling, made from simil peraluman, epoxy
painted sheet metal, offers maximum ease of access to the in-
ternal components.
Standard version without acoustic insulation on compressors
case.
Available, on request, acoustic insulation on compressors sec-
tion by 30mm thick Fiberform. See acoustic performances sec-
tion to be informed on the noise reduction level.
Compressors
Hermetic scroll compressors complete with an oil pump heater,
electronic overheating protection with centralised manual reset
and a two-pole electric motor.
Exchanger side customer
AISI 316 steel braze-welded plate exchanger. The heat ex-
changers are 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 tem-
peratures as low as -8°C.
Exchanger side thermal source
AISI 316 steel braze welded plate exchanger. The exchangers
can be used with water from wells, from towers or with dry-
coolers.
Refrigerant circuit
Main components of the refrigerant circuit:
- dryer fi lter,
- refrigerant line sight glass with humidity indicator,
- externally equalised thermostatic valve,
- high pressure safety valve,
- high and low pressure switches,
2.2 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,
- automatic circuit breakers and contactors for compressors,
- terminals for cumulative alarm block (BCA),
- remote ON/OFF terminals,
- spring-type control circuit terminal board,
- electronic controller.
AVAILABLE VERSIONS
B (base)
Standard unit.
2.3 Accessories
- Noise insulation
- Rubber isolators
- Electronic soft start
- Compressor discharge valves
- Compressor suction valves
- Evaporator water fl ow switch (supplied separately)
- 3 way modulating valve for condensing control (supplied
loose)
- Pressostatic valve (supplied loose)
- 2 way modulating valve for condensing control (supplied
loose)
- Pump with onboard inverter for condensing control
- Upward water connections (only available with the hydronic
kit)
- Victaulic fl exible coupling kit for both condenser and evapora-
tor
- HP and LP gauges
- W3000 Compact Keyboard
- Remote keyboard (only with keyboard W3000 Compact)
- Water pumps kit (see attachment)
- Evaporator steel fi lter kit (supplied separately)
(1) Condenser water temp. 30/35 °C(2) Evaporator water (in/out) 12/7 °C(3) With temperatures down to -8°C use anti-freeze mixtures. In case oflower temperatures, please contact our Sales Department.
ETHYLENE GLYCOL MIXTURE
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
Limits to exchanger water temperature are valid within the minimum -maximum water flow range indicated in the Hydraulic Data section.
12 NECS-W_0152_0612_200907_GB
NECS - W
HFC R410A
5. HYDRAULIC DATA
SIZEEvaporator Condenser Desuperheater
K Q min m3/h
Q max m3/h
W.c. min m3 K Q min
m3/hQ max m3/h K Q min
m3/hQ max m3/h
0152 1037 4.6 12.6 0.4 430 2.7 11.5 -- - -
0182 664 5.3 14.4 0.4 339 3.2 13.2 - - -
0202 481 6.2 16.9 0.5 276 3.7 15.5 - - -
0252 360 7.0 19.1 0.6 226 4.3 17.6 - - -
0262 360 7.7 20.9 0.6 226 4.7 19.2 - - -
0302 154 9.2 24.9 0.8 111 5.6 22.9 - - -
0352 108 10.8 29.1 0.9 80.0 6.5 26.6 - - -
0412 108 12.2 32.9 1.0 62.0 7.4 30.2 - - -
0452 81.0 13.7 36.9 1.1 50.0 8.3 33.9 - - -
0512 63.0 15.3 41.3 1.2 37.0 9.3 37.7 - - -
0552 43.0 17.7 47.4 1.4 30.0 10.7 43.4 - - -
0612 43.0 20.0 53.6 1.6 25.0 12.1 48.9 - - -
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
Q min: minimum water flow admitted to the heat exchanger.Q max: maximum water flow admitted to the heat exchanger.C.a. min: minimum water content admitted in the plant using
traditional control logic.
5.1 Water flow and pressure drop
13 NECS-W_0152_0612_200907_GB
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HFC R410A
The new NECS-W units can be equipped with evaporator and /
or condenser hydronic kits. The kit incorporates the main hydrau-
lic components thus optimizing hydraulic and electrical installa-
tion space, time and costs.
Moreover NECS-W can be provided with INVERTER pumps on
the condenser side. This device enables the condensing pres-
sure control, through the variable speed pump, reducing pump
energy consumption.
Available confi gurations
Evaporator and / or condenser hydronic kit can be provided
with following confi gurations:
Hydronic group 1 pump low head
Hydronic group 2 pumps low head
Hydronic group 1 pump high head
Hydronic group 2 pumps high head
Units can be equipped with up to 4 pumps, two on the evapora-
tor and two on the condenser side.
2-pole pump
Low head pump with 100 kPa external static pressure.
High head pump with 200 kPa external static pressure.
Horizontal one-piece centrifuge pump with one impeller, axial
suction and radial delivery, AISI 304L stainless steel pump body
impeller. The section of shaft in contact with the liquid is made
from stainless steel. Mechanical seal made from components
in ceramics/carbon/NBR/AISI304. Three-phase electric motor
protected to IP55, insulation class F, suitable for continuous
service.
Second pump
A 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 fi tted with check valves to ensure the unit
works correctly.
Water-side mechanical fi lter (optional)
Y-fi lter designed and built to capture the impurities in the hy-
draulic circuit. It is fi tted with a 0.9 mm stainless steel mesh car-
tridge which can be replaced without removing the valve body
from the piping.
Sideward/Upward external water connections
2 compressors NECS-W units with hydronic kit installed on-
board are available with both side and up external water con-
nections. Standard units with external side water connections,
up-wards type is made to order.
Up-wards water connections type is suitable for technical
rooms with room-top water piping; reduced installation spaces
and saving costs will be obtained.
6. HYDRONIC GROUPS
14 NECS-W_0152_0612_200907_GB
NECS-W
HFC R410A
Confi guration of hydronic unit with 1 pump per circuit
The hydronic group comprises:
- P Horizontal one-piece centrifuge pump
- MA Hydraulic circuit pressure gauge
- SC Discharge valve
- S1 Exchanger input water temperature probe
- S2 Exchanger outlet water temperature probe
- SF Air vent
- VA 3 bar safety valve
- VE one 8 litre expansion tank pre-pressurised to 1.5 bar
Confi guration of hydronic unit with 2 pumps per circuit
The hydronic group comprises:
- P Horizontal one-piece centrifuge pump
- MA Hydraulic circuit pressure gauge
- SC Discharge valve
- S1 Exchanger input water temperature probe
- S2 Exchanger outlet water temperature probe
- SF Air vent
- VA 3 bar safety valve
- VE 8-litre expansion tanks, pre-pressurized to 1,5 bar
- VR Check valve (only if P2 is fi tted)
The electrical panel of the unit is protected with Automatic
circuit breakers.
The supply does not include the following accessories though
these are recommended to ensure correct system operation:
- Pressure gauges upline and downline from the unit
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) 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%
19 NECS-W_0152_0612_200907_GB
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HFC R410A
BNECS-W8. FULL LOAD SOUND LEVEL
SIZE Octave band [Hz]
2000100050025012563 80004000
Total sound
level
Sound power level dB(A)
SOUND POWER
74 72 69 70 70 63 59 53 730152
75 73 70 71 71 64 60 54 740182
75 73 70 71 71 64 60 54 740202
75 73 70 71 71 64 60 54 740252
76 74 71 72 72 65 61 55 750262
76 74 75 74 70 68 64 53 760302
77 75 76 75 71 69 65 54 770352
77 75 76 75 71 69 65 54 770412
78 76 77 76 72 70 66 55 780452
78 76 77 76 72 70 66 55 780512
79 77 78 77 73 71 67 56 790552
79 77 78 77 73 71 67 56 790612
Plant (side) cooling exchanger water (in/out) 12/7 °C
Source (side) heat exchanger water (in/out) 30/35 °C
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
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 m
2000100050025012563 80004000
Total sound
level
Sound pressure level dB(A)
SOUND PRESSURE LEVEL
43 41 38 39 39 32 28 22 420152
44 42 39 40 40 33 29 23 430182
44 42 39 40 40 33 29 23 430202
44 42 39 40 40 33 29 23 430252
45 43 40 41 41 34 30 24 440262
45 43 44 43 39 37 33 22 450302
46 44 45 44 40 38 34 23 460352
46 44 45 44 40 38 34 23 460412
47 45 46 45 41 39 35 24 470452
47 45 46 45 41 39 35 24 470512
48 46 47 46 42 40 36 25 480552
48 46 47 46 42 40 36 25 480612
Plant (side) cooling exchanger water (in/out) 12/7 °C
Source (side) heat exchanger water (in/out) 30/35 °C
Average sound pressure level, at 10 (m.) distance, unit in a free field on a reflective surface; non-binding value obtained
A 1 NECS-W_0152_0612_200907_GBELCAdoc 16/04/2008 HFC R410A
9. DIMENSIONAL DRAWINGS
REMARKS:
For installation purposes, please refer to the documentation sent after the purcha-
se-contract.
This technical data should be considered as indicative. CLIMAVENETA may modi-
fy them at any moment.
A
H
B
1 EVAPORATOR WATER INLET
2 EVAPORATOR WATER OUTLET
3 CONDENSER WATER INLET
4 CONDENSER WATER OUTLET
5 POWER INLET
6 MAIN ISOLATOR HANDLE
NECS-W
A2 NECS-W_0152_0612_200907_GB HFC R410A
DIMENSIONAL DRAWINGS
Size
DIMENSIONS AND WEIGHTS CLEARANCE (See following page)NECS
A [mm]
B [mm]
H [mm]
P [kg]
R1[mm]
R2 [mm]
R3 [mm]
0512 1055 649 1255 280 600 600 800
0182 1055 649 1255 295 600 600 800
0202 1055 649 1255 300 600 600 800
0252 1055 649 1255 310 600 600 800
0262 1055 649 1255 315 600 600 800
0302 1222 873 1496 565 600 600 800
0352 1222 873 1496 605 600 600 800
0412 1222 873 1496 635 600 600 800
0452 1222 873 1496 675 600 600 800
0512 1222 873 1496 715 600 600 800
0552 1222 873 1496 765 600 600 800
0612 1222 873 1496 795 600 600 800
Water connectionsEvaporator Condenser
VictaulicRif. 1- 2 Rif. 3 - 41 1/2” 1 1/2”
1 1/2” 1 1/2”
1 1/2” 1 1/2”
1 1/2” 1 1/2”
1 1/2” 1 1/2”
2 1/2” 2 1/2”
2 1/2” 2 1/2”
2 1/2” 2 1/2”
2 1/2” 2 1/2”
2 1/2” 2 1/2”
2 1/2” 2 1/2”
2 1/2” 2 1/2”
NECS-W
A3 NECS-W_0152_0612_200907_GB HFC R410A
10. CLEARANCE - LIFTING - SYMBOLS
LIFTING INSTRUCTIONS:
- Make sure that all the panels are firmly fixed in place before moving the unit- Before lifting it, check the weight on the CE label- Use all, and only, the lifting points provided- Use slings of equal length- Use a spread-bar (not included)- Move the unit carefully and avoid abrupt movements
ATTENZIONE: UTILIZZARE N° 4 FUNI DI SOLLEVAMENTO DI PARI LUNGHEZZA
A
B
R1 R2
R3
NOTE:For installation purposes, please refer to the documentation sent after the purchase contract. These technical data should be considered as indicative.CLIMAVENETA may modify them at any moment.
LIFTING
WARNING: USE 4 LIFTING SLINGS OF EQUAL LENGTH
11. LEGEND OF PIPE CONNECTIONS
UNI ISO 228/1
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 threads
Internal 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 7/1Conventional 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 mmExternal ø 33.249 mm 33.249 mm