Hitecsa EKWXA 1001.1 Instruction 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
SOLO FRIO
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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EKWXA│EKWXBA
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 themanufacturer using originalspares. 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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EKWXA│EKWXBA
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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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 below0 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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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 0510 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 0510 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
18
-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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EKWXA│EKWXBA
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

17
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

18
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!

19
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.

20
07.17 207443 Rev.105
EKWXA│EKWXBA
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.