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EKE-LT Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans Range from 6,8 to 280 kW

Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

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Page 1: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

EKE-LT

Spec

ializ

ed in

Pro

cess

Coo

ling

Technical catalogue

Air cooled water chillers forlow temperature with axial fans

Range from 6,8 to 280 kW

Page 2: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

SUMMARY

Description Pag

• OVERVIEW“Process” products range overview.......................................................

4

• FOCUSThe electronic expansion valve................................................................The compressors.....................................................................................The selection software.............................................................................The webservice........................................................................................

6 7 8 9

• MAIN FEATURESTechnical construction characteristics......................................................Available accessories...............................................................................Units identification...................................................................................

101213

• TECHNICAL DATATechnical data for only cooling version..................................................... 14

• FACTORSCorrection factors....................................................................................Operating limits.......................................................................................

1616

• ELECTRICAL DATAElectrical data for all the components and totals..................................... 17

• REFRIGERANT SCHEMA AND TECHNICAL DETAILSOnly cooling units frigorific schema......................................................... 18

• DRAWINGSDomensional drawings............................................................................. 20

Page 3: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

R 404aR 404a

R 404aR 407c R 404aR 134a

4

Overview products

LT Range

ST Range

CHI Version

PDC Version

CHI Version

Only cooling

Only cooling

Heat pump

Low temperature rangeFluids from -25°C to 0°C

Standard temperature rangeFluids from 0°C to 20°C

Reciprocating semihermetic compressors

Plate exchangers

Scroll compressorsReciprocating semihermetic compressors

Screw semihermetic compressors

NO FROST exchangersPlate exchangers

Shell and tube exchangers

NO FROST exchangersPlate exchangers

Shell and tube exchangersA wide range of water chillers and heat pumps designed for the “Process Coo-

ling”. The different configurations make this series suitable to satisfy all the ope-

rating requirements and the several accessories available allow to customize

the products according to the real application request. A reliable choice for even

difficult and problematic industrial processes.

Sp

ec

iali

ze

d i

n P

roc

ess C

oo

lin

g

Page 4: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

5

Overview products

EKE/LT EKC/LT EKW/LT

EKE EKC EKW EKA

EKE/PC EKC/PC EKW/PC

MEKRO

Air cooledwater chillerswith axial fans

from 6,8 to 280 kW

Air cooledwater chillers

with centrifugal fans

from 6,8 to 122,5 kW

Water cooledwater chillers

from 7,9 to 145 kW

Air cooledwater chillerswith axial fans

from 3,1 to 8,2 kW

Air cooledwater chillers

with centrifugal fans

from 5,6 to 464 kW

Air cooledwater chillerswith axial fans

from 5,6 to 836 kW

Water cooledwater chillers

from 6 to 1566 kW

Condenserlessunits

from 5,6 to 532,4 kW

Air / waterheat pump

with axial fans

from 5,6 to 398 kW

Air / waterheat pump

with centrifugal fans

from 5,6 to 464 kW

Water / waterheta pump

from 6 to 1566 kW

Page 5: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

6

The electronic expansion valve

In the frigorific circuit, the expansion valve has a key role and its proper operation provides

security to the system as well as optimize the operation from an energy standpoint.

The more traditional expansion valves and more used up to now, are those defined as

“thermostatic with external equalizer.” The main functions of this valve are mainly two: to

reduce the pressure inside the circuit, setting the refrigerant evaporates, check the value of

overheating, to ensure full freon gas inlet of the compressor.

The action of this type of valve can be defined as thermo-up of a membrane positioned

within act three different pressures: that of evaporation, that of a return spring which also

serves to superheat setting, the external equalizer, contrary to the first two.

The answers so far are certainly valid, but limited in accuracy and, above all, the ability to

adapt to sudden changes in operating conditions.

Thanks to electronics, has led to a totally new valve: the “electronic expansion valve”.

Perhaps, rather than a single element we should speak of the system because there are

various components that make up this new system.

The mechanical part that bears on the head of the electrical connectors, cables specially

crafted link, the electronic management and control.

The cards are also achieved by signals from temperature sensors and pressure scattered

along the circuit.

The “Electronic Expansion System”, after receiving information from sensors, compares

the various parameters and sends the command to open or close mechanical element. But

even greater is the evidence that all assessments are carried out in a very short time and

then, the answer to the system is also very fast.

Considering the change in operating conditions, a longer span of time, you get a linear

response rather surprising. In some plants was measured energy optimization that led to a

global savings of up to 15%, very significant value that drives us to think how important it is

to make the right design evaluations.

Page 6: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

7

The compressors

Euroklimat uses several types of compressors to meet the different needs of use: the classic

“scroll” to the innovative “semi-hermetic screw.

But the emphasis on industrial applications and production process leads Euroklimat to

take often compressors “semi-hermetic alternatives” that are still today one of the most

popular and reliable components. The concept is simple: a cylinder, inside which a piston

works, allows the suction of the refrigerant gas and the subsequent compression.Two plates

valves installed on respective chambers of recovery and discharge, supervise the functio-

ning of the system ensuring the flow of refrigerant in the circuit. The lubrication system,

finally, achieved through a forced circulation of specific oil provides an adequate guarantee

of functionality over time.

The oil level is constantly monitored by the operator through a glass clearly visible outside

of the compressor (3 / 4 maximum - 1 / 4 minimum). Great advantage of these compressors

is the total internal accessibility which promotes restoration on site. The heads, the electric

motor and all components are completely removed. The practicality, together with the great

knowledge that operators have of this device, enable it to intervene without having to unplug

the compressor from, saving time and transfers often costly and complex.

The control of cooling capacity, using a special “valve solenoid” on the head of the com-

pressor, reduces the potential provided by following a precise request of the load.

The figure just above diagram is the action of the compressor without the intervention of

the valve (left) or by the action of the latter (right): 1) solenoid valve; 2) vacuum chamber; 3)

compression chamber; 4) plug; 5) spring; 6) head.

In practice, canceling the effect of pumping a portion of the cylinder, changing the total flow

of the fluid and, therefore, its cooling capacity.

The flexibility of the product does not stop here because over the years have been studied

and used several interesting and really surprising. For example, in cases of great need refri-

geration compressors may be connected together by combining suction and discharge (the

link is configured at the factory by the manufacturer).

Euroklimat widespread and mostly uses this type of device.

1) valvola solenoide; 2) camera di aspirazione; 3) camera di compressione; 4) otturatore; 5) molla di richiamo; 6) testa.

Page 7: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

8

The most delicate problem of every modern company is to be able to provide rapid, accu-

rate and complete informations.

The evolution of communications technology has led to significantly reduce the time avai-

lable to produce the answers and to make matters worse, the specialized technical/

production which has been gaining increasing, has allowed companies to expand product

capabilities and configurations.

This has dealt a blow to that part of business that must oversee the preparation and com-

munication of technical data or commercial products. Marketing efforts, documentation,

the same sales and even the general trend of the company often depend on the capacity

and speed to respond to market demand.

Until the last century it was unthinkable to imagine multiple assessments, while rich in

information, while immediate. You could certainly make an interesting document but at the

expense of the timeframe for implementation or at the expense of accuracy.

Fortunately, technology has also allowed in this area to find good solutions and helpful to

the operators.

Euroklimat has invested heavily in electronics because he always wanted to provide a

serious service to its customers and after several years of discussions, research and im-

provements may present with pride Euroklimat Software Selection.

In the vast range of products Euroklimat, this program is able to search, select and deliver

the equipment or appliances necessary to meet the demand. The options are many, the

flexibility is extreme. Machine-type silenced the use of heat recovery from the calculation

easier with the nominal conditions for the dimensioning more complicated to use specific

values, just a shot of clicks to get immediate answers analytical and articulate. Another

great advantage of this software is the possibility to directly compare multiple devices and

be able, therefore, without laborious manual assessment, to select the optimal product for

energy performance, or for any other reason.

At the conclusion of the selection, a large section devoted to print or export of documents

in traditional formats, allows the production of processed clear and very well planned.

The investment of Euroklimat is not limited to this aspect but is also developed through the

web with innovative and useful services for all employees and users.

The selection software

Page 8: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

www.euroklimatservice.com

9

The webservice

With the advent of information technology, there have been several opportunities for com-

munication and transmission of information unthinkable until last century. Moreover the de-

velopments of recent years moreover brought a revolution to labor standards but also of life

to which we were accustomed.

We have, in fact, experienced the birth of a new “era”. Today getting information in real

time with continuous, accurate and complete updates is possible. The possibilities for error

are reduced to a minimum and really the quality delivered to you is awesome. Euroklimat

considered a must taking advantage of this huge potential creating a website very articulate

and detailed, providing an important support to all customers: here it is the “webservice”.

The simple and intuitive interface of the site allows you to “surf” quickly and easily reach

the pages or news of interest. A real direct link between customer and company, obtained

thanks to the interactivity of the platform, represents a major “plus” of this system, more

than ever necessary to forward the significant technological innovations or achievements.

“webservice” by Euroklimat is a versatile tool and at the same time rich and able to meet

more different needs: the simply curious internet surfer or the refrigeration technician can

find “on-line” clear answers and complete documents.

Within the various sections, it contains general information about the company, its history,

the correct contacts, pages dedicated to Euroklimat certifications, a few important installa-

tions. But the most interesting and detailed areas concern the access and the availability to

download documents. The sections named as “Download” and “Eurokey” respectively allow

you to save on your computer the catalogs and the unit selection software.

Last but not least, the area that has given his name to the whole site provides access to

detailed documentation of every single machine: dimensional drawing, schematic diagram,

spare part list, confirmation ‘order, instruction manuals… Arranged and designed for the

specific skills, “webservice” allows the customer or the service technician to access their

files and recover real time info which are then updated and available even when on the

installation site.

Another step to the Euroklimat “mission”: we help our customers succeed.

Page 9: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

10

Base frame in galvanized sheet steel, stove-enamelled with polyurethane powders and is

equipped with bearing foot, for fixed installation. Internal metal works in galvanized sheet

steel. Drip tray for rain water collection in case of outside installation, complete with type

discharge fitting connectable without disassembling any panel. Frame is made in anodized

aluminium profiles, using aluminium-alloy angle-joints. Panels in galvanized steel, externally

coated with PVC film. Fastening to aluminium frame by stainless steel screws, fitted on pa-

nels’ edg. Air-tight gaskets on panels’ edges, made in polyurethane with dual density

Axial fan directly coupled to the electric motor, 4 or 6 poles, external rotor type, with special

labyrinth watertight, bearings free from servicing and incorporated thermal protection. Fans

have blades with haul profile, dinamically and statically balanced and are equipped with

accident prevention grill on air inlet.

RECIPROCATING semihermetic compressor, complete with forced lubricated system, oil

electrical heater when unit on standby, isolation valve on gas inlet. Electrical motor is cooled

by refrigerant gas in suction and is protected against working anomalies by integral electro-

nic protection and thermistors embedded in windings. Compressors are fitted on antivibra-

tion mountings. For models from 81 to 1602 they are supplied with unloaded head, to adapt

cooling capacity in case of reduction of thermal needs.

Air cooled condenser, composed by a thermal exchange battery, with copper tubes me-

chanically expanded, into aluminium fins coil.Vertically fitted, together with fan it is comple-

tely separated from the remaining components and is protected against incidental shocks,

thanks to a grill integrated with panel.

PLATE type evaporator made of AISI 316 steel complete with water differential pressure

switch. Shell covered with closed cell neoprene anti condensate material.

Refrigerant circuit is completely made in braze welded copper tube with silver alloy and is

insulated on suction part, to avoid creation of condensate. It is complete with safety device.

From 502 to 1602 model, there is a double indipendent circuit. Main components are:

Refrigerant filter with mechanical and dehydrating action, of molecular-sieve type.

Liquid sight-glass with colour-change indicator for checking gas charge and humidity.

Solenoid valve on liquid line.

Rotalock valve on the liquid line.

Oil separator.

Liquid accumulator.

Electronic expansion valve (from model 81 included).

High pressure switch with automatic reset.

Low pressure switch with automatic reset.

Oil pressure differential switch, with manual reset.

Fan speed controller.

Housing

Fan

Compressor

Refrigerant circuit

Technical construction characteristic

Condenser

Evaporator

Page 10: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

11

Fan

Compressor

Centrifugal pump for water circulation with seals for low temperature, complete with 2 poles

electric motor, directly coupled with special mechanical seal for low temperature.

Gauge on pump’s water outlet, for the control of the correct circuit pressure.

Differential pressure switch on water circuit.

Air venting valve, equipped with rubber holder and of quick open type. The valve is placed

outside the unit for fitting without disassembling any panel.

Water discharge valve, equipped with rubber holder and of quick open type.The valve is

placed outside the unit for fitting without disassembling any panel.

Safety valve on water circuit. Special insulation for low temperatures.

Every unit is equipped with electric panel, produced and wired as per applicable IEC-EN

norms and is complete with:

-Lock door main switch

-Protection on every electrical load.

-Contactor for: compressors, fans and pump.

-Auxiliary transformer

Microprocessor control with the following functions: Chilled-water temperature control

thanks to compressor/s ON / OFF regulation system or activation of capacity step for

models from 81 to 1602 included. Compressor working-time meter. Compressor-start ti-

ming and control of inrush number limitation. Rotation of compressors’ start-up for models

from 502 up to 1602, with equalization of working hours. Anti-freeze protection. Digital

display operator interface. Connection for serial output (optional). Alarms management

with free contacts for cumulative alarms. Connection for remote ON/OFF. Codified Alarms

of the main components Alarms reset and unit set-up from keyboard. Alarm buzzer. Control

keyboard. On/off safety switch. Auto-diagnostic functions.

Hydronic circuit

Electric board and controls

Technical construction characteristic

Condenser

Page 11: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

12

Available accessories

The EKE-LT series includes many accessories to adapt the unit features to the different

operating applications. Some of them can be fitted even on site, while installing the unit,

while others must necessarily be defined when ordering it since they involve main changes

that cannot be completed on site. Some accessories cannot be fitted together and other

ones are available on selected models only; therefore verifying the possible configurations

with the Euroklimat sales office is necessary before ordering a unit.

The available accessories are the following:

• Vibration isolation mounting (Kit)

• Remote control panel

• Gauges for refrigerant low and high pressures, embedded in glycerine

• Electromechanical flow switch

• Paneling peralluman

• Increased pump water

• Pressure relief valve / by-pass

• Kit open expansion vessel for the operation of the units in an open circuit, complete

with: a container for the filling of the circuit; structural support; connection pipes;

valves; small fixing.

• RS 485 serial communication card

NOTE:

The continuous evolution of the product due to technical and design updates, might change

the accessories’ availability or their configuration possibilities. Euroklimat reserves the right

to introduce changes without prior notice.

Page 12: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

EKE -LT - I / ST / AS 1402 S

13

Units identification

The EKE_LT range consists of water chillers with axial fans. Thanks to the special design and components used, these units can be installed

outdoor even without any protection or coverings. The care of the details and the rich equipment of the units, which are of “package” type,

facilitate the positioning and fitting to the system, reducing the installation activity only to electrical and plumbing connections. The following

diagram clarifies the meaning of the identification code and of the configuration options.

Familymambership

Execution

Solution

Version Equipment

Model of the unit

Number of compressors

Type of compressor

LT = Low temperature

I = Integrated

ST = Standard AS = Standard

1 = 1 compressor2 = 2 compressors

S = Reciprocating

Page 13: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

EKE-LT 20 31 51 81 101 151 201 301 401

kW 6,8 10,7 13,7 18,6 29,0 35,1 42,6 56,9 74,6kW 3,1 5,4 6,3 7,4 13,6 15,2 18,4 27,3 31,7

m3/h 1,3 2,0 2,5 3,4 5,4 6,5 7,9 10,5 13,8bar 2,9 2,9 2,8 2,7 2,4 2,4 2,2 2,5 2,3kW 2,3 3,6 4,6 6,3 9,8 11,8 14,3 19,1 25,1kW 1,9 3,4 3,9 4,6 8,5 9,5 11,5 17,1 19,8

m3/h 0,5 0,8 1,0 1,3 2,1 2,5 3,1 4,1 5,4bar 2,6 2,6 2,6 2,5 2,4 2,6 2,4 2,5 2,5

-n° 1 1 1 1 1 1 1 1 1n° 1 1 1 1 1 1 1 1 1n° 1 1 1 2 2 2 2 2 2

n° x L 2,8 2,8 4,6 4,6 4,6 7,1 7,1 11 11n° x L 1,6 1,6 5,6 5,6 5,6 7,8 7,8 11 11

m3/h 3.650 5.200 5.700 12.700 12.00 16.400 24.300 21.200 32.800-

n° 1 1 1 1 1 1 2 2 3kW 0,2 0,33 0,42 1,05 1,05 2,0 2,1 2,1 3,15

-kW 1,45 1,45 1,45 1,45 1,45 2,09 2,09 2,55 2,55L 30 30 30 60 60 60 160 160 290

dB(A) 67 67 69 73 73 74 73 73 76V/ph/Hz + T 400/3/50

A 9,3 14,2 15,3 20,4 34,7 42,6 45,5 54,8 72,9A 38,1 54,2 65,3 89,5 119,3 138,4 205 229,1 276,8

mm 980 980 980 1.280 1.280 1.280 1.930 1.930 2.580mm 800 800 800 990 990 990 990 990 990mm 1.785 1.785 1.785 2.075 2.075 2.155 2.175 2.175 2.175Kg 320 355 380 600 640 670 830 920 1.190

E_980x800 E_980x800 E_980x800 E_1280x990 E_1280x990 E_1280x990 E_1930x990 E_1930x990 E_2580x990

14

Technical data

ST VERSIONCooling capacity(1)Total compressors power input(1)Water flow(1)External pressure @ Pn(1)Cooling capacity(2)Total compressors power input(2)Water flow(2) PnExternal pressure @ Pn(2)

Compressors type Semihermetic reciprocatingCompressors quantityIndipendent gas circuitCapacity stepsReceiverLiquid separator

Total air flowFans type AxialFans quantityFans power input

Pump type Peripherical CentrifugalPump motor power inputWater tank content

Sound pressure(3)Power supplyMaximum absorbed currentStarting current

DIMENSIONS AND WEIGHT - INTEGRATED SolutionLenght (L)Depth (P)Height (H)Shipping weightDimension drawing

Note:(1) Condenser air 30°C - Exit evaporator fluid at 0°C - ethylene glycol 25%(2) Condenser air 30°C - Exit evaporator fluid at -25°C - ethylene glycol 50%(3) Sound pressure measured at 1 m in open field conditions

R 404aEcological

Gas

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EKE-LT 502 602 702 802 1002 1202 1402 1502 1602

kW 85,0 102,0 123,0 154,0 180,0 236,0 253,0 271,0 280,0kW 36,8 44,7 55,6 62,6 80,6 92,3 104,0 114,0 121,0

m3/h 15,7 18,9 22,8 28,5 33,3 43,7 46,8 50,1 51,8bar 2,1 2,7 2,5 2,3 2,2 2,7 2,6 2,5 2,4kW 28,6 34,3 41,4 51,8 60,5 79,4 85,1 91,1 94,2kW 23,0 28,0 34,8 39,2 50,5 57,8 65,1 71,4 75,8

m3/h 6,1 7,3 8,8 11,1 13 17 18,2 19,5 20,1bar 2,5 2,7 2,7 2,6 2,6 2,8 2,8 2,7 2,7

-n° 2 2 2 2 2 2 2 2 2n° 2 2 2 2 2 2 2 2 2n° 1 1 1 2 2 2 2 2 2

n° x L 2x7,1 2x7,1 2x11 2x11 2x11 2x19 2x19 2x19 2x19n° x L 2x7,8 2x11 2x11 2x11 2x19 2x19 2x19 2x19 2x19

m3/h 34.700 45.200 51.200 76.400 76.400 106.000 106.000 123.600 123.600-

n° 4 4 3 6 6 8 8 6 6kW 2,6 4,2 6 6,3 6,3 8,4 8,4 12,0 12,0

-kW 2,55 4,56 4,56 4,56 4,56 8,45 8,45 8,45 8,45L 290 290 290 500 500 500 500 500 500

dB(A) 78 79 80 82 82 82 84 84 84V/ph/Hz + T 400/3/50

A 88,2 104 122,2 143,8 187,4 219,1 244,1 276,3 289,9A 206,6 228,2 243 278,6 327 334,5 398,5 425,5 425,5

mm 3.520 3.520 3.520 3.900 3.900 4.700 4.700 4.700 4.700mm 990 990 990 2.000 2.000 2.000 2.000 2.000 2.000mm 2.230 2.230 2.300 1.835 1.835 2.135 2.135 2.200 2.200Kg 1.860 1.960 2.040 2.180 2.380 2.430 2.810 3.200 3.320

E_3520x990 E_3520x990 E_3520x990 E_3900x2000 E_3900x2000 E_4700x2000 E_4700x2000 E_4700x2000 E_4700x2000

15

Technical dataR 404aEcological

Gas

ST VERSIONCooling capacity(1)Total compressors power input(1)Water flow(1)External pressure @ Pn(1)Cooling capacity(2)Total compressors power input(2)Water flow(2) PnExternal pressure @ Pn(2)

Compressors type Semihermetic reciprocatingCompressors quantityIndipendent gas circuitCapacity stepsReceiverLiquid separator

Total air flowFans type AxialFans quantityFans power input

Pump type CentrifugalPump motor power inputWater tank content

Sound pressure(3)Power supplyMaximum absorbed currentStarting current

DIMENSIONS AND WEIGHT - INTEGRATED SolutionLenght (L)Depth (P)Height (H)Shipping weightDimension drawing

Note:(1) Condenser air 30°C - Exit evaporator fluid at 0°C - ethylene glycol 25%(2) Condenser air 30°C - Exit evaporator fluid at -25°C - ethylene glycol 50%(3) Sound pressure measured at 1 m in open field conditions

Page 15: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

% 15 20 25 30 35 40 45 50°C -6,1 -8,9 -12,1 -15,8 -20,0 -24,9 -30,5 -37,1- 1,035 1,051 1,069 1,088 1,109 1,131 1,140 1,151- 1,060 1,077 1,095 1,112 1,132 1,152 1,173 1,190

°C -25°C 10°C -5°C 35

-25 -20 -17 -14 -10 -5 0 2 5

25 0,37 0,48 0,54 0,60 0,74 0,89 1,09 1,17 1,33

30 0,33 0,43 0,49 0,54 0,67 0,81 1,00 1,08 1,22

35 0,29 0,39 0,43 0,49 0,61 0,74 0,91 0,98 1,12

-25 -20 -17 -14 -10 -5 0 2 5

25 0,61 0,69 0,73 0,76 0,83 0,89 0,96 0,98 1,02

30 0,62 0,71 0,75 0,79 0,86 0,93 1,00 1,03 1,07

35 0,64 0,73 0,77 0,81 0,89 0,96 1,04 1,08 1,12

Example: EKE-LT 301

KPFCorrection fatctorCooling capacity

OUT water temperature (°C)

Minimum ethylenic glycol 50% Minimum ethylenic glycol 40% Minimum ethylenic glycol 30% Minimum ethylenic glycol 20% E.G. min. 10%

Am

bien

t ai

rte

mpe

ratu

re

(°C

)

KPICorrection fatctor

Power input

OUT water temperature (°C)

TAm

bien

t ai

rte

mpe

ratu

re

(°C

)

Cooling capacity

Power input

REQUEST CONDITIONS - Water: -10/-15°C - Ambient air 35°C - Ethylenic glycol 35%

RESULTS (R1) (KPF) (R2) - Capacity: 56,9 x 0,47 = 26,7 kW (P1) (KPI) (P2) - Power input: 27,3 x 0,7 = 19,1 kW

Operating limits

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20

400/

3/50

+ T

1 3,8 6,8 35,9 1 0,2 0,3 1,1 2,2 5,1 9,3 38,1 3x16A

31 1 6,3 11,6 52 1 0,2 0,4 1,1 2,2 7,6 14,2 54,2 3x16A

51 1 7,8 12,5 63,1 1 0,4 0,6 1,1 2,2 9,3 15,3 65,3 3x25A

81 1 9,1 16,4 87,3 1 0,9 1,8 1,1 2,2 11,1 20,4 89,5 3x25A

101 1 16,8 30,7 117,1 1 0,9 1,8 1,1 2,2 18,8 34,7 119,3 3x63A

151 1 18,6 36,3 136,2 1 2,1 4,1 1,1 2,2 21,8 42,6 138,4 3x63A

201 1 22,4 39,7 202,8 2 0,9 1,8 1,1 2,2 25,3 45,5 205,0 3x63A

301 1 27,0 46,5 224,4 2 0,9 1,8 1,5 4,7 30,3 54,8 229,1 3x80A

401 1 38,5 63,7 273,0 3 0,9 1,8 2,2 3,8 43,4 72,9 276,8 3x125A

502 2 22,4 39,7 202,8 4 0,7 1,2 2,2 3,8 49,8 88,2 206,6 3x125A

602 2 27,0 46,5 224,4 4 0,9 1,8 2,2 3,8 59,8 104,0 228,2 3x160A

702 2 33,3 55,6 239,2 4 0,9 1,8 2,2 3,8 72,4 122,2 243,0 3x160A

802 2 38,5 63,7 273,0 6 0,9 1,8 3,0 5,6 85,4 143,8 278,6 3x200A

1002 2 49,3 85,5 321,4 6 0,9 1,8 3,0 5,6 107,0 187,4 327,0 3x250A

1202 2 56,7 98,1 326,0 8 0,9 1,8 4,0 8,5 124,6 219,1 334,5 3x250A

1402 2 63,2 110,6 390,0 8 0,9 1,8 4,0 8,5 137,6 244,1 398,5 3x315A

1502 2 70,2 121,6 417,0 6 2,1 4,1 4,0 8,5 157,0 276,3 425,5 3x315A

1602 2 74,6 128,4 417,0 6 2,1 4,1 4,0 8,5 165,8 289,9 425,5 3x400A

17

Electrical dataM

od

el Powerinput

Compressor Motor FanMotor Pump

standardTOTAL UNIT

Sec

tio

nn

.

QTY FLI FLA LRA QTY FLI FLA FLI FLA FLI FLA LRA

[n°] [kW] [A] [A] [n°] [kW] [A] [kW] [A] [kW] [A] [A]

NOTE:QTY = QuantityFLI = Maximum power inputFLA = Maximum absorbtion currentLRA = Locked rotor current

Page 17: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

PD

VH

VB

VA

SR

SA

VS

CP

RA

-

PB

PO

+

V1V2

RMPA

MA

SB

EV

ESTM

MB

MO

EQ

SL

IL

FI

CD

VE

TF

MHEP

GM

GA

RI

VC

18

Refrigerant-hydraulic schema

EKE-LT from model 20 to model 401

CP Compressor

RA-RM Suctio/discharge cock

MA-MO-MB-MH High/oil/low/water pressure gauges

GA-GM Suction/discharge flexible joint

PA-PO-PB High/oil/low pressure switch

V1-V2 ON/OFF condensation control

CD Condensing coil

TM-EQ-ES Thermostatic valve/equalizer/sensitive el.

RI Valve

FI Dehydrating filter

IL-SL Humidity sight glass/solenoid valve

VE Fan

EV Evaporator

VA Air valve

VB By-pass valve

VH Water drain valve

SA Antifreeze probe

SR Regulation probe

PD Differential pressure switch

VS Safety valve

EP Pump

SB Tank

Page 18: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

PD

VA

SR

VS

CP

RA

-

PB

PO

+

V1V2

RMPA

MA

SB

EV

ESTM

MB

MO

EQ

SL

IL

FI

CD

TF

MHEP

GM

GA

RI

SA

VA

PB

VS

GA

EV

TM

TF

RA

CP

-

+

PA

V2 V1

GM

MB

MA

IL

CDRI

VHSB

ES

EQ

POMO

SL

FIRM

VH

VB

VE

VE

19

Refrigerant-hydraulic schema

EKE-LT from model 502 to model 1602

CP Compressor

RA-RM Suctio/discharge cock

MA-MO-MB-MH High/oil/low/water pressure gauges

GA-GM Suction/discharge flexible joint

PA-PO-PB High/oil/low pressure switch

V1-V2 ON/OFF condensation control

CD Condensing coil

TM-EQ-ES Thermostatic valve/equalizer/sensitive el.

RI Valve

FI Dehydrating filter

IL-SL Humidity sight glass/solenoid valve

VE Fan

EV Evaporator

VA Air valve

VB By-pass valve

VH Water drain valve

SA Antifreeze probe

SR Regulation probe

PD Differential pressure switch

VS Safety valve

EP Pump

SB Tank

Page 19: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

980

1

0

0

1888 8

Ø12Ø12

29 90 90 29

1785

1000

1000

1000

80032.5 32.5

E_980x800

20

Dimensional drawing

FRONT VIEW BACK VIEW

TOP VIEW SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

Page 20: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

1280

0

1

88 8 81

0

1000

1000

1000

2150

65 100 100 65

Ø13Ø13

99025 25

E_1280x990

21

Dimensional drawing

FRONT VIEW BACK VIEW

TOP VIEW SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

Page 21: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

1930

0

1

1000

1000

1000

Ø13 Ø13 Ø13

2175

6510010065 100

888 8

99025 25

E_1930x990

22

Dimensional drawing

FRONT VIEW BACK VIEW

TOP VIEW SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

Page 22: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

25 25990

0

1888 8

Ø18 Ø18 Ø18

1000

1000

1000

10010065 100 65 2580

2230

E_2580x990

23

Dimensional drawing

FRONT VIEW BACK VIEW

TOP VIEW SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

Page 23: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

990

1

0

888 8

1000

2310

100100100100 92565 9251140 65

Ø18 Ø18 Ø18 Ø18

1000

1000

3520

E_3520x990

24

Dimensional drawing

FRONT VIEW BACK VIEW

TOP VIEW SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

Page 24: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

87182687

200015

0015

00

1000

3900150 1200 1200 1200 150

Ø18 Ø18Ø18Ø18

1930

E_3900x2000

25

Dimensional drawing

FRONT VIEW

BACK VIEW TOP VIEW

SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

Page 25: Specialized in Process Cooling - jnegre.es gama EKE baja... · Specialized in Process Cooling Technical catalogue Air cooled water chillers for low temperature with axial fans

87182687

2000

1500

1500

1000

Ø18 Ø18Ø18Ø18

4700250 1400 1400 2501400

2230

E_4700x2000

26

Dimensional drawing

FRONT VIEW

BACK VIEW TOP VIEW

SIDE VIEW

CONDENSER AIR FLOW

ELECTRIC CABLES INPUT

OPERATING SPACE

OPERATING SPACE

WATER SIDECONNECTIONS

OPERATING SPACE

Luis
Typewritten Text
J. Negre C., S.L Pais 1-7 Nave 28 08191 Rubí (Barcelona) +34 588 08 18 [email protected] www.jnegre.com