Hitecsa EKWXA 1001.1, EKWXA 801.1, EKWXBA 1001.1, EKWXBA 1201.1, EKWXA 1201.1 Installation, Operation & Maintenance Manual

Installation, Operation

& Maintenance Manual

07.17 207443 Rev.105

EKWXA │ EKWXBA

AIR-COOLED WATER CHILLERS ─ AXIAL FANS

Models: 801.1 │ 1001.1 │ 1201.1 │ 1501.1
Cooling Capacities: from 21,18 kW to 38,7 kW
Heating Capacities: from 25,2 kW to 40,3 kW

ONLY COOLING

HEATING PUMP

Thank you for trusting the Hitecsa Products. Our company has been offering the market an extended range of specialized units for
air conditioning and cooling installations for over 35 years. Our approach is based on efficiency, adaptability, usability and practical
solutions. This has been the hallmark of our product catalogue.

The versatility of our factory allows us to contribute solutions, almost tailored to each project’s specifications, in search of a solution
to every problem that arises in design and implementation of air conditioning installations.

From all of us at Hiplus Aire Acondicionado, once again, thank you very much.

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07.17 207443 Rev.105

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AIR-COOLED WATER CHILLERS

AXIAL FANS

EKWXA – EKWXBA – MINI KRONO

INDEX

INTRODUCTION .............................................................................................................................. 4

CONTENTS .......................................................................................................................................... 4

REGULATIONS AND CERTIFICATIONS .................................................................................................. 5

SAFETY PRECAUTIONS ........................................................................................................................ 5

TECHNICAL DATA ........................................................................................................................... 6

RECEPTION ..................................................................................................................................... 8

INSPECTION ........................................................................................................................................ 8

RIGGING.............................................................................................................................................. 8

STORAGE ............................................................................................................................................ 8

INSTALLATION ................................................................................................................................ 9

DIMENSIONS ....................................................................................................................................... 9

Models 801.1 │ 1501.1 .................................................................................................................... 9

WEIGHT DISTRIBUTION ..................................................................................................................... 10

Models 801.1 │ 1501.1 .................................................................................................................. 10

INSTALLATION LOCATION ................................................................................................................. 11

UNIT SETTLEMENT ............................................................................................................................ 11

WATER DRAIN ................................................................................................................................... 11

SECURITY ELEMENTS......................................................................................................................... 11

ELECTRICAL CONNECTIONS............................................................................................................... 11

SERVICE AREA ................................................................................................................................... 12

OPERATION ...................................................................................................................................12

OPERATING LIMITS ........................................................................................................................... 12

Refrigeration Mode ....................................................................................................................... 13

Heat Pump Mode ........................................................................................................................... 13

BEFORE START UP ............................................................................................................................. 14

START UP .......................................................................................................................................... 14

THERMOSTAT AND CONTROL ........................................................................................................14

MCX06 CONTROL .............................................................................................................................. 14

MCX06 ALARMS ................................................................................................................................ 15

HYDRONIC KIT ...............................................................................................................................16

TECHNICAL DATA .............................................................................................................................. 16

OPERATING LIMITS ........................................................................................................................... 17

WEIGHT DISTRIBUTION ..................................................................................................................... 17

Models 801.1 – 1501.1 .................................................................................................................. 17

MAINTENANCE ..............................................................................................................................18

CONSERVATION AND CLEANING ....................................................................................................... 18

LUBRICANT ....................................................................................................................................... 18

REFRIGERANT CHARGE ..................................................................................................................... 18

VERSIONS ......................................................................................................................................19

OPTIONAL .....................................................................................................................................19

ACCESSORIES / OPTIONAL................................................................................................................. 19

APPENDIX: SAFETY DATA R410A ...................................................................................................20

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS
AXIAL FANS

INTRODUCTION

CONTENTS

Purpose of the Manual

This manual and the instruction documents of refrigeration lines, wiring diagrams and any other attached documents,
have been written to allow a correct installation, set up and maintenance of the unit. Therefore it is essential to read the
instructions with due attention. Verify all the necessary information for the correct installation of the system is included
in the manuals supplied with this unit and / or the rest of the indoor units, accessories, etc. Otherwise, the manufacturer
declines any responsibility for any damage to persons or things, as a result of improper use of the unit and/or failure to
observe these instructions.

Preservation Manual

This manual and the electric diagram of the unit must be retained and remain available to the operator for any further consultation.

Updating the Data

The continuous improvement in design and performance to which we are committed gives us the right to modify the specifications of our
products without prior notice.

Electrical Network

Check that electrical network features are in accordance to data shown in the data nameplate of the unit.

Local Safety Regulations

Observe and analyze all possible causes of accidents that may arise in the place or places of installation of the units, check means and
tools to use, etc. It is not possible to anticipate each and every one of the potential circumstances of danger in this manual. Respect the
local security standards during installation.

Principles of Security on Installation

The unit is designed and built in a way that does not pose a risk to the health and safety of people. Appropriate project solutions have
been adopted to eliminate the possible causes of risk in the installation.

Packaging and Replacement of Equipment

The packaging material (plastic bags, insulating materials, nails, etc.) is a potential source of danger and should be kept
out of the reach of children and properly recycled according to local safety regulations. This product should not be mixed
with household waste at the end of its life. Due to the refrigerant, oil and other components contained in this product, it
must be dismantled by professional installers in accordance with current regulations.

Use

The unit will be used only for the reason has been conceived. Any other use does not imply any kind of compromise or link for the
manufacturer.

Incorrect Operation

In case of breakdowns or operation faults, turn off unit.

Periodic Inspections and Maintenance

Carry out periodic inspections to detect possible damaged or broken pieces. If they are not repaired it could result in
damage to people or stuff. Before executing any maintenance operation, cut off the unit power supply.

All operations must be carried out in accordance with local safety regulations.

Repairs

Reparations should be always realized for trained personal authorized by the manufacturer using original spares. Failure
to comply with these warnings could affect the safety features of the unit.

Modifications

All manufacturer responsibility is declined when the warranty has been expired in case of electrical and/or mechanical modifications.
Alterations in general not expressly allowed and not respecting what is instructed here, they cause the warranty expiration.

Refrigerant

This product is hermetically sealed and contains R-410A which is a HFC fluorinated greenhouse gas.

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AIR-COOLED WATER CHILLERS

AXIAL FANS

INTRODUCTION

REGULATIONS AND CERTIFICATIONS

ISO 9001:2008 CERTIFICATION: HILPUS AIRE ACONDICIONADO S.L., trying always to find the customer satisfaction, has obtained

the ISO 9001:2008 Quality System referred to its production activity. This will results in a continuous determination to improve quality and
reliability of all our products; commercial activities, design, raw materials, production and after-sales service, are the means to reach our
goal.

CE MARKING: Our machines have got the CE mark, in conformity with the essential requirements of the applicable EC
directives and their last modifications as well as with the national legislation of each country.

CERTIFICACION EUROVENT: HITECSA participates in the EUROVENT Certification program. Check certified products on the web.

SAFETY PRECAUTIONS

DANGER

 To open the electrical panel and access the inside of the machine it is MANDATORY to disconnect the power supply hose from the

machine, it MUST BE FREE OF TENSION for this operation.

 Do not touch or adjust the safety elements inside any unit of the system. In the repairs use only original spare parts and install them

properly in the same position where old parts were placed.

 Installation and maintenance of air conditioning equipment can be dangerous because the system is under pressure, because some

of its elements have high temperatures and include electrical components.

 Do not install the unit in explosive atmosphere.

ATTENTION!

 Only qualified and trained service staff should install, commission and carry out maintenance works. Unqualified staff should only

carry out basic tasks such as cleaning and replacement of filters, etc.

 Prevent access to children so they can not play with the appliances.
 In every visit, all precautions should be taken into account: those recommended in the Installation, operation and maintenance

instructions, as well as the ones indicated in labels of the unit. Do not forget to strictly follow any other safety codes.

 NO objects should be introduced into the air inlets or outlets that can be drawn into the fan, people, etc.
 Use safety glasses, work gloves and any other safety accessory necessary.
 For brazing operations use a quenching cloth and have at close distance a fire extinguisher.
 This product contains fluorinated greenhouse gases, its leakage can cause displacement of air and cause insufficient oxygen to

breathe.

 Must follow all safety recommendations.

Before starting installation, service or maintenance, turn off the main power switch in order to avoid

electrical shock that may cause personal damages.

WARNING!

SECURITY OF THE OPTIONAL HYDRONIC KIT WITH ELECTRIC HEATERS.

Before starting the equipment, make sure that the water tank is completely full and that the installation

is perfectly drained of air.

WARNING!

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EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS
AXIAL FANS

TECHNICAL DATA

Serie MINI KRONO 2

801.1

1001.1

1201.1

1501.1

EKWXA – ONLY COOLING

Cooling capacity

(1)

kW

21,18

24,87

28,74

36,59

Total absorbed capacity

(3)

kW

7,43

9,25

10,08

13,76

EER

2,85

2,69

2,85

2,66

Refrigerant charge (no optional)

Kg

4,50

5,50

4,80

6,50

Evaporator water flow

m³/h

3,65

4,30

4,96

6,32

Evaporator pressure drop

kPa

24,70

32,90

27,10

45,00

Net weight

kg

304

332

338

344

EKWXBA – HEATING PUMP

Cooling capacity

(1)

kW

21,18

24,87

28,74

38,70

Total absorbed capacity

(3)

kW

7,43

9,25

10,08

15,73

EER

2,85

2,69

2,85

2,46

Evaporator water flow

m³/h

3,65

4,30

4,96

6,69

Evaporator pressure drop

kPa

24,70

32,90

27,10

45,00

Heating capacity

(2)

kW

25,20

29,30

33,70

40,30

Total absorbed capacity

(3)

kW

8,29

9,67

11,12

14,71

COP

3,04

3,03

3,03

2,74

Refrigerant charge (no optional)

Kg

8,00

8,40

9,00

10,70

Evaporator water flow

m³/h

4,35

5,06

5,82

6,95

Evaporator pressure drop

kPa

30,60

43,80

33,60

59,80

Net weight

kg

312

340

348

354

Note:

(1) COOLING MODE: Outdoor temperatura 35ºC, Water inlet temperature 12ºC, Water outlet temperature 7ºC.
(2) HEATING MODE: Outdoor temperature 7ºC D.B. / 6ºC W.B., Inlet temperature 40ºC, Water outlet temperature

45ºC.

(3) TOTAL ABSORBED CAPACITY: Absorbed power by the equipment in Cold or Heat conditions indicated above

according to UNE-EN-14511-2: 2013.

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EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

TECHNICAL DATA

Serie MINI KRONO 2

801.1

1001.1

1201.1

1501.1

REFRIGERANT

Type

R-410A

Number of circuits

1

Global warming potential (GWP)

(4)

2088

COMPRESSOR

Type

SCROLL

Number of compressors

1 Number of power stages

1

Oil type

POE 160 SZ

Oil volume

L

3,3

3,6

Crankcase strength

W

65

FANS

Type

AXIAL

Number of fans

1

Rated air flow

m3/ h

16.700

19.500

Available static pressure

Pa

0

Diameter

mm

710

800

Absorbed power (by fan)

kW

1,5 / 1,12

2,06 / 1,33

Rated current (by fan)

A

3,0 / 1,7

3,8 / 2,3

Speed

r.p.m.

914 / 730

891 / 700

OUTDOOR HEAT EXCHANGER

Type

Aluminum fin coil and copper tubing

Quantity

1 1 1 1

Front surface of the exchanger

m2

1,49

1,49

1,49

1,49

INDOOR HEAT EXCHANGER

Type

Water - Refrigerant

Quantity

1

Water volume

L

2,3

2,9

3,4

3,4

Anti-ice resistance

W

50

WATER CONNECTIONS

Type

SLOTTED – Victaulic type

External diameter

(‘’)

1 1/2

ELECTRIC SPECIFICATIONS

Supply voltage

V / ~F / Hz

400 / 3+N / 50

Maximum intensity

A

21,7

23,1

26,9

33,1

Starting current (AC)

A

148

148

158,8

208,8

SOUND LEVEL

Sound power

dB(A)

84,3

84,4

83,5

85

Sound pressure (5m)

(5)

dB(A)

62,5

62,6

61,7

63,2

WEIGHT AND DIMENSIONS

Large

mm

1200

Width

mm

1050

High

mm

1470

Note:

(4) GWP: Global warming potential (climatic) of 1 kg of greenhouse gas relative to 1 kg of CO2, calculated in terms of 100-year warming potential.
(5) Measurement conditions on the free field, directivity 2 and 1,5 meters above the floor.

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AIR-COOLED WATER CHILLERS
AXIAL FANS

RECEPTION

INSPECTION

 At the time of equipment delivery it is advisable to examine it carefully.
 Check that the equipment has not been damaged during transport and has been supplied complete with all parts specified in the

order and/or with the optionals specified in the order. If this is not the case contact the transport company immediately. (First 48h).

 Verify the correct voltage of the nameplate and make sure it’s in accordance with local power supply.
 In case of any flaw or anomaly detected, please contact HITECSA.

RIGGING

 Before moving the unit, make sure that all panels are well fixed.
 Raise and set down the equipment carefully.
 Do not tilt the unit more than 15 degrees during transportation. (Fig. 2).
 When lifting the unit, make sure that it’s balanced and stable; bear in mind that the heaviest part is where the compressor is installed.
 Always transport the unit in its original packaging to the place of installation.
 Lifting through crane.

STORAGE

If the equipment is going to be stored please follow the instructions below in order to avoid damages, corrosion or deterioration:

 Do not place the machine in places exposed to ambient temperature above 50ºC and preferably keep the unit away from direct

sunlight.

 Avoid prolonged storage, before installation, water inlet, dust and objects in general due to invasion or biological, meteorological

and/or human inclemencies.

 Minimum storage temperature is 5ºC.
 Maximum Relative Humidity: 90%.

It is also recommended:

 Move it carefully.
 Avoid placing other objects on top of the unit (unless it is done within the limits of the overlap planes indicated on the packaging).
 Avoid placing the unit with heat-shrink protection under the sun, as the pressure of the circuits could assume values that could lead

to the intervention of the safety valves.

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AIR-COOLED WATER CHILLERS

AXIAL FANS

INSTALLATION

DIMENSIONS

Models 801.1 │ 1501.1

1. Water inler Ø 1 1/2 ”

2. Water outlet Ø 1 1/2 ”

3. Electrical panel

4. Main switch

5. Electrical connection input

6. Optional electrical connection input

7.

Water inlet with Hydronic Kit Ø 1 1/2 ”

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS
AXIAL FANS

INSTALLATION

WEIGHT DISTRIBUTION

Models 801.1 │ 1501.1

GRAVITY CENTER (cm)

WEIGHT DISTRIBUTION (kg)

X Y P1

P2

P3

P4

Total

801.1

46

53

102

71

57

82

312

1001.1

46

54

109

78

64

90

340

1201.1

48

55

105

83

70

89

348

1501.1

47

54

109

84

70

91

354

ELECTRICAL PANEL

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EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

INSTALLATION

INSTALLATION LOCATION

 Consult and respect the rules and local regulations which regulate the installation of air conditioning systems.
 Choose a site without dust and debris.
 Respect the appropriate service area for the equipment wich will be installed.
 Verify that the ground or structure on which the unit will be installed is able to support its weight in operation.
 Fit shock absorbers throughout the installation to prevent the transmission of noise and vibration.
 Check that the direction of the sound level is not going to disturb anyone.

UNIT SETTLEMENT

 Be sure unit is correctly leveled.
 The bed frame should have sufficient strength to support unit weight.
 Be sure that after settlement the unit drain is working properly.

WATER DRAIN

 The indoor drain (of condensate water) has connection 3/4’’ MPT.
 Condensate evacuation line diameter should be equal or larger than unit drain

connection depending on the line length and general building configuration.

 The condensate line should be pitched a minimum 2% for proper water evacuation.
 When drain line is exposed to air temperatures below 0 grades is necessary to provide

thermal insulation or electrical heating wire to avoid water freezing and tube damage.

 It is convenient to install the trap with proper dimensions.

SECURITY ELEMENTS

The installation of the following safety elements, when NOT incorporated as standard in the unit or in the hydronic kit, is MANDATORY.
Failure to do so will result in LOSS OF WARRANTY.

 Water Filter: At the entrance of the unit to protect the exchanger or other critical components against obstructions and / or

entanglements.

 Flow Switch or Differential Pressure Control: Protection of the water exchanger against breakage due to insufficient water flow,

which can lead to total disabling of the equipment.

ELECTRICAL CONNECTIONS

 Unit current supply should be within 10% of Volts indicated on the unit

nameplate.

 Damage caused by the start-up of the unit in an incorrect voltage line is not

covered by the Hitecsa guarantee.

 When making electrical connections always use the unit wiring diagram.
 Be sure that the compressor crankcase heater can be energized before unit

start.

 Do not operate at any different current from that is shown on the unit’s

nameplate.

 The installer has to install the line protection elements according to the local

laws.

 The interconnecting wires have to be in the protection tube or inside the

groove channel.

Before starting any type of operations put in position off

main power switch.

WARNING!

Recommended siphon measures

1. Main Power 400/3/50 + Neutral + Ground

2. Main Switch

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS
AXIAL FANS

INSTALLATION

SERVICE AREA

Be sure to respect the measures for a proper operation of the unit.

OPERATION

OPERATING LIMITS

TEMPERATURE

COLD

MINIMUM

MAXIMUM

Water Outlet

5ºC* 18ºC

Outdor Air (Dry Bulb)

10ºC**

46ºC

HEAT

MINIMUM

MAXIMUM

Water Outlet

25ºC

55ºC

Outdor Air (Wet Bulb)

-10ºC

22ºC***

* For lower temperatures it is necessary to use the water mixture with glycol.
** For lower temperatures use the optional condensing control.
*** For higher temperatures use the optional evaporation control.

OPERATING LIMITS

801.1

1001.1

1201.1

1501.1

Minimum Water Flow

m3/h

2,4

2,8

3,3

4,2

Maximum Water Flow

m3/h

6,4

7,5

8,7

11,1

Minimum Volume of Water

l

54

63

73

93

1000 mm → Coil Side

1200 mm → Connections Side and Electrical Panel.

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AIR-COOLED WATER CHILLERS

AXIAL FANS

OPERATION

OPERATING LIMITS

Refrigeration Mode

Heat Pump Mode

EKWXA - EKWXBA

6025 30 35 40

45

50

55

-15

-10

-5

0

5

10

15

20

LWT (°C)

Temperatura exterior / Outdoor temperature / Témperature éxterieur (°C)

-7

-10

-5

0

5

10 15 20 25

-20

-10

0

10

20

30

40

55

LWT (°C)

Temperatura exterior / Outdoor temperature / Témperature éxterieur (°C)

25

46

-20

-10

-5

0

5

10 15 20 25

-15

-10

0

10

20

30

40

46

LWT (°C)

Temperatura exterior / Outdoor temperature / Témperature éxterieur (°C)

55

18

-7

EKWXA - EKWXBA
+ Glicol
+ Glycol

EKWXA - EKWXBA
+ Control de condensación
+ Condensation Control
+ Contrôle de la Condensation

EKWXA - EKWXBA

7002 - 9002

EKWXA - EKWXBA
+ Glicol
+ Glycol

-15

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AIR-COOLED WATER CHILLERS
AXIAL FANS

OPERATION

START UP

 It is necessary to take notes of the air inlet and outlet temperatures to the internal coil, the volts and amps of the compressor and

motor fan, as well as the suction and discharge pressure of each compressor.

 It should be remembered that it is necessary to clean the air filters after the first 4 hours of operation.
 Observe at least, 3 cooling cycle operations.
 Due to the unit equips frequency converters, it is essential that the power is at least 300mA to prevent power cuts caused by the

activation of the circuit breaker.

THERMOSTAT AND CONTROL

MCX06 CONTROL

Programmable controller with LED display, installation in panel. The thermostat consists of a user interface terminal and electronic board
of a single set.

Characteristics:

 Isolated power supply, 20/60 VDC – 24 VAC.
 LED display with 2 groups of digits and several icons that show all the desired

information on the same screen.

 Operation Mode: 1 compressor, olny cooling and heat pump.
 Defrost maneuver by pressure transducers.
 Management of the recirculation pump and inertia module.
 Time schedule: RTC clock for periodic weekly program management and data

logging.

 Parameterizable control, with 3 access levels: user, maintenance and

manufacturer.

 Modbus serial communication interface RS-485.



Start up has to be performed by a qualified service person.

Check the following points:

 Electrical connections are well tightened.
 Panels are firmly secured with screws.
 There are no oil or refrigerant leaks.
 The unit is correctly leveled.
 There is enough space for service and maintenance.
 Drainage is not blocked.
 Check that the crankcase heater of each compressor is in operation for 24 hours prior to commissioning.
 Air filters are cleaned and correctly mounted.
 Grilles, air diffusers, air ducts and flexible connections are in good condition.
 Electrical power source is in accordance with what is said in the nameplate.
 Fans rotate in the right direction.

 Reed the User Manual

BEFORE START UP

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AIR-COOLED WATER CHILLERS

AXIAL FANS

THERMOSTAT AND CONTROL

MCX06 ALARMS

CODE

DESCRIPTION

RESET

TYPE

COMPRESSOR

WATER

PUMP

CONDENSER

FAN

ANTIFREEZE

HEATER

A01

Antifreeze

Automatic

OFF

OFF

OFF

OFF

A03

Evaporator flow switch

Manual

OFF

OFF

OFF

OFF

A7A

Ale. Probe Tin Evaporator

Automatic

OFF

OFF

OFF

OFF

A7G

Alr. Probe DischargePress C1

Automatic

OFF - -

-

A7K

Alr. Probe Tout

Automatic

- - -

-

A7V

Alr. Probe SuctionPress C1

Automatic

OFF - -

-

A09

High temperature

Notification

- - -

-

A10

Evaporator pump service time limits

exceeded

Notification

- - -

-

A12

Condenser fan service time limits

exceeded

Notification

- - -

-

A13

Maximum time of defrost exceeded

Notification

- - -

-

A50

Fan thermal protection

Automatic

OFF - OFF

OFF

A61

Maximum service hours for

compressor 1 exceeded

Notification

- - -

-

AC0

General Thermal Compressor Alarm

Manual

OFF

OFF

OFF

OFF

Ac1

Compressor 1 Thermal protection

Manual

OFF - -

-

AE1

Antifreezing evaporator

Manual

OFF - -

-

AFA

Fans anomaly

Automatic

OFF - -

-

AH0

General high pressure

Manual

OFF - -

-

AH1

High pressure circuit 1

Manual

OFF - -

-

AIT

Antifreezing alarm

Manual

OFF - -

-

AL0

General low pressure

Manual

OFF - -

-

AL1

Low pressure circuit 1

Manual

OFF - -

-

AM0

General high pressure suction

Manual

- - -

-

AM1

High pressure suction circuit 1

Manual

- - -

-

AP0

General evaporator pump

Manual

OFF

OFF

OFF

OFF

AP1

Thermal protection water pump 1

Automatic

OFF

OFF

OFF

-

AV0

General Vacuum Alarm

Manual

OFF - -

-

dp0

General Low Delta Pressure

Automatic

OFF

OFF

OFF

OFF

dp1

Circ 1 Low Delta Pressure

Automatic

OFF - -

OFF

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AIR-COOLED WATER CHILLERS
AXIAL FANS

HYDRONIC KIT

TECHNICAL DATA

MINI KRONO 2 series

801.1

1001.1

1201.1

1501.1

HYDRONIC KIT

Expansion Vessel Volume

l

11

Deposit Inertia Volume

l

90

Available Pressure Machine + H.K. Without Tank

kPa

27,9

24,4

28

41,4

Available Pressure Machine + H.K. With Tank

kPa

28,1

24,6

28,3

41,8

Water Flow

m3/h

3,7

4,3

5,2

6,6

Connection Type

Slotted - Victaulic

Connection Diameter

(“)

1 ½

WATER PUMP OPTION

Power Supply

V/~/Hz

400/3/50

Number of Water Pump

1 Reserve Water Pump Option

NO

Maximum weight: Heat Pump + H.K. (full of
water)

kg

447

475

483

489

LOW PRESSURE PUMP

Model

120/3

Rated Power (per unit)

kW

0,55

Maximum Current (One Pump Operation)

A

1,6

Locked Rotor Current (One Pump)

A

9,4

Available Pressure Machine + H.K. Without Tank

kPa

156,2

152,9

138,3

105

Available Pressure Machine + H.K. With Tank

kPa

156,1

152,8

138

104,6

HIGH PRESSURE PUMP

Model

120/5

Rated Power (per unit)

kW

0,9

Maximum Current (One Pump Operation)

A

2,4

Locked Rotor Current (One Pump)

A

19,7

Available Pressure Machine + H.K. Without Tank

kPa

247

242,4

225,5

188,7

Available Pressure Machine + H.K. With Tank

kPa

246,9

242,3

225,3

188,3

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

HYDRONIC KIT

OPERATING LIMITS

OPERATING LIMITS

801.1

1001.1

1201.1

1501.1

Coefficient of thermal expansion Water between 7-50°C / 2 bar

ΔV/V

0,0125

Coefficient of thermal expansion Water between 7-55°C / 2 bar

ΔV/V

0,015

Expansion vessel

l

11

Maximum water volume (7-50)ºC

l

438

Maximum water volume (7-55)ºC

l

368

WEIGHT DISTRIBUTION

Models 801.1 – 1501.1

MINI KRONO 2 Serie

GRAVITY CENTER (cm)

WEIGHT DISTRIBUTION (kg)

MODEL

X Y P1

P2

P3

P4

Total

801.1

50,7

62,6

111

101

112

123

447

1001.1

50,8

62,5

118

108

119

130

475

1201.1

51,9

62,9

115

113

127

129

483

1501.1

51,6

62,6

118

114

126

131

489

ELECTRICAL PANEL

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS
AXIAL FANS

MAINTENANCE

CONSERVATION AND CLEANING

It is advisable to do maintenance works every 1.000 operating hours as well as at the beginning of each cooling season.
 Coils: At least once a year, clean condenser coils with water and detergent, then dry with air at a low pressure. Never clean with wire

brush.

 Drainage system: Verify condition and good operation of the drainage tray and siphon.
 Refrigeration circuit: Check for oil refrigerant leaks, noises or system’s vibrations. Take measurements of temperatures and

pressures of components and record them on the maintenance form.

 Electrical circuit: Make sure that all electrical connections -wires, contactors and terminals- are properly tight. Record the readings

for volts and amperes of each compressor and fan motor. Verify the starting current. Check the good operation of all relays, pressure
switches and phase sequence relay of Scroll compressor.

LUBRICANT

R-410A refrigerant compressors use synthetic polyolester oil. Each compressor manufacturer has a specific oil for your product.
The compressor or system should not remain open to atmosphere for more than 15 minutes.
Synthetic ester-type lubricants (POE, Polyol Ester) having high solubility with R-410A are used. Since these types of oils are very

hygroscopic, it should be more careful handling them than with conventional ones. Moreover, when these synthetic oils are mixed with
minerals or alkylbenzenes, they deteriorate causing capillary blockage or failure in the compressor.

Do not mix under any circumstances.

REFRIGERANT CHARGE

 In case it is necessary to add or recover refrigerant, use an electronic scale that is suitably reinforced and prepared to withstand the

handling of the refrigerant bottle.

 The charge must be made in LIQUID condition.
 The inlet of liquid refrigerant R-410A in the empty tubes causes temperatures below 0ºC until the internal pressure reaches 7 bars.

 Leaks should be repaired immediately.
 Never overcharge the system.
 Never use compressor as vacuum pump.
 If leakage symptoms appear during the operation, it is necessary to leak test.
 To find small leaks, you will need a detector for HCF.
 If gas leak is detected is necessary to remove and recuperate complete refrigerant charge. Pressurize system with dry nitrogen. If

leakage has been not detected break a vacuum, dehydrate and charge with refrigerant.

Do not reintroduce used refrigerant, send it to an authorized recycling location.

Before performing any service or maintenance of the unit, it is mandatory to disconnect and lock the system

main switch to prevent anyone other than the technician from connecting the unit and causing personal

injury.

WARNING!

Never use oxygen to pressurize system or purge lines for leak test. Oxygen reacts violently with

oil, which can cause an explosion resulting in damage, personal injury or death.

WARNING!

If it is necessary to make brazing operation, first fill the circuit with dry nitrogen. Burning

refrigerant 410A results in toxic gas emissions.

WARNING!

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

VERSIONS

STANDARD

External fan with 6 pole motor and without compressor insulation

IC

External fan with 6 pole motor and with compressor insulation

Type 1: Basic compressor isolation [2 dB(A) sound level reduction]

Type 2: Compressor isolation << Low Noise >> [6 dB(A) sound level reduction]

SS

External fan of bionic profile and with compressor isolation "low noise"

OPTIONAL

ACCESSORIES / OPTIONAL

CONDENSATION CONTROL

STANDARD, IC y SIL: Outdoor AC fan with variable speed drive

SS: Serial Built-in Speed Control

POWERED FAN

Incorporation of EC Electronic Fans of bionic profile with higher available pressure

With this accessory is included the control of condensation of the equipment

SOFT STARTER

Soft starter to minimize peak currents at the compressor start

ELECTRONIC EXPANSION

Expansion of electronic injection valve

HYDRONIC KIT

Option 1: Pump + Tank + Expansion vessel

Option 2 : Pump + Tank with electrical heater + Expansion vessel

In HEAT mode for low outdoor temperatures, the electric heater is activated as a compressor
support, as long as the compressor is operational

Option 3 : Pump + Expansion vessel

HYDRAULIC CIRCUIT SAFETY

Differential pressure control

Flow Switch

WATER MANOMETERS

Incorporation of manometers for reading the inlet and outlet pipes

VICTAULIC

Exterior water outlet connections of victaulic type

AGGRESSIVE ENVIRONMENTS

Coils with Blygold coating of finned pack

Coils with Aluzinc flap type

Coils with copper fins

COIL PROTECTION

Incorporation of protection grids to prevent impact on the condenser coils

SUPERVISION

External monitoring system

FOR UNIT INSTALLATION

Differential in electrical panel

Independent electrical panel

Operation without neutral

MULTIPLE UNITS
MANAGEMENT

Modular control system via master/slave

FOR SOUND LEVEL

Compressor acoustic insulation

* In addition to these optional consult with our Commercial department for any other configuration or function not described as available.

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07.17 207443 Rev.105

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AIR-COOLED WATER CHILLERS
AXIAL FANS

APPENDIX: SAFETY DATA R410A

Refrigerant Data

Safety Data: R410A

Toxicity

Low

Contact with Skin

R410A vapours can irritate the skin and eyes. In liquid form, it can freeze skin on
contact. If contact with skin occurs, flush the exposed area with lukewarm water until
all of the chemical is removed. If there is evidence of frostbite, bathe in lukewarm
water.

Contact with Eyes

If contact with eyes occurs, immediately flush with large amounts of lukewarm water
for at least 15 minutes, lifting eyelids occasionally to facilitate irrigation. Seek medical
attention as soon as possible.

Ingestion

Very unlikely - should something happen, it will cause frost burns. Do not induce
vomiting. Only if the patient is conscious, wash out mouth with water and give some
250 ml of water to drink. Then, obtain medical attention.

Inhalation

Inhalation of the R410A vapour may cause irritation. Vapour inhalation at high
concentrations may result in asphyxiation or the heart may become sensitized,
causing cardiac arrhythmia. When concentration of R410A reach levels which reduce
oxygen to 14-16% by displacement, symptoms of asphyxiation will occur. An
individual exposed to high concentrations of R410A must be given medical attention
immediately. Adequate ventilation must be provided at all times.

Recommendations

Semiotics or support therapy is recommended. Cardiac sensitisation has been
observed that, in the presence of circulating catecholamines such as adrenalin, may
cause cardiac arrhythmia and accordingly, in case of exposure to high
concentrations, cardiac arrest.

Prolonged Exposure

R410A: a study on the effects of exposure to 50,000 ppm during the whole life of rats
has identified the development of benign testicle tumour.
This situation should therefore be negligible for personnel exposed to concentrations
equal to or lower than professional levels.

Professional Levels

R410A: Recommended threshold: 1000 ppm v/v - 8 hours TWA.

Stability

R410A: is stable under normal operating conditions.

Conditions to Avoid

Do not use in the presence of high temperatures, flames, burning surfaces and
excess humidity.

Hazardous Reactions

Contact with certain red-hot metals may result in exothermic or explosive reactions
and yield toxic and/or corrosive decomposition products. Specific materials to avoid
include freshly abraded aluminium surfaces and active metals such as sodium,
potassium, calcium, powdered aluminium, magnesium and zinc.

Hazardous Decomposition

Products

R410A: Halogen acids produced by thermal decomposition and hydrolysis.

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

APPENDIX: SAFETY DATA R410A

Refrigerant Data

Safety Data: R410A

General Precautions

Do not inhale concentrated vapours. Their concentration in the atmosphere should
not exceed the minimum preset values and should be maintained below the
professional threshold. Being weightier than the air, the vapour concentrates on the
bottom, in narrow areas. T here fore, the exhaust system must work at low level.

Respiratory System Protection

If you are in doubt about the concentration in the atmosphere, it is recommended to
wear a respirator approved by an accident prevention Authority, of the independent
or oxygen type.

Storage

Cylinders must be stored in a cool, dry and properly ventilated storage area away
from heat, flames, corrosive chemicals, flumes, explosives and be otherwise
protected from damage. Keep a temperature below 52°C.

Protective Clothing

Wear overalls, protective gloves and goggles or a mask.

Accidental Release Measures

IIt is important to wear protective clothing and a respirator. Stop the source of the
leak, if you can do this without danger. Negligible leaks can be left evaporating under
the sun, providing that the room is well ventilated. Considerable leaks: ventilate the
room. Reduce the leak with sand, earth or other absorbing substances. Make sure
that the liquid does is not channelled into gutters, sewers or pits where the vapours
are likely to create a stuffy atmosphere.

Disposal

The best method is recovery and recycling. If this method is not practicable, dispose
according to an approved procedure, which shall ensure the absorption and
neutralization of acids and toxic agents.

Fire Fighting Information

R410A: Not flammable in the atmosphere.

Cylinders

The cylinders, if exposed to fire, shall be cooled by water jets; otherwise, if heated,
they may explode.

Protective Fire Fighting Equipment

In case of fire, wear an independent respirator and protective clothing.

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07.17 207443 Rev.105

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS
AXIAL FANS

We reserve the right to add modifications without prior notice.