Hitecsa EKWXA 7002.4, EKWXA 8002.4, EKWXBA 7002.4, EKWXA 9002.4, EKWXBA 8002.4 Installation, Operation & Maintenance Manual

...

Installation, Operation

& Maintena

nce Manual

05.17 207646 Rev.103

EKWXA │ EKWXBA

AIR-COOLED WATER CHILLERS ─ AXIAL FANS

Models: 7002.4 │ 8002.4 │ 9002.4 Cooling Capacities: from 178,3 kW to 213,6 kW Heating Capacities: from 194,9 kW to 244,2 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.

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

EKWXA – EKWXBA – BIG KRONO II

INDEX

INTRODUCTION ................................................................................................................ 5

CONTENTS ........................................................................................................................... 5

REGULATIONS AND CERTIFICATIONS ................................................................................... 6

SAFETY PRECAUTIONS ...................................................................................................... 6

DESCRIPTION OF THE UNIT ............................................................................................... 7

TECHNICAL DATA ............................................................................................................. 8

RECEPTION ..................................................................................................................... 10

INSPECTION ....................................................................................................................... 10

RIGGING ............................................................................................................................ 10

STORAGE ........................................................................................................................... 10

INSTALLATION ................................................................................................................ 11

DIMENSIONS...................................................................................................................... 11

Model 7002.4 .................................................................................................................. 11

Models 8002.4 │ 9002.4 ................................................................................................. 12

WEIGHT DISTRIBUTION ..................................................................................................... 13

Model 7002.4 .................................................................................................................. 13

Models 8002.4 │ 9002.4 ................................................................................................. 13

INSTALLATION LOCATION .................................................................................................. 14

UNIT SETTLEMENT ............................................................................................................. 14

WATER DRAIN .................................................................................................................... 14

ELECTRICAL CONNECTIONS ............................................................................................... 14

SERVICE AREA .................................................................................................................... 15

Model 7002.4 .................................................................................................................. 15

Models 8002.4 │ 9002.4 ................................................................................................. 15

OPERATION .................................................................................................................... 16

OPERATING LIMITS ............................................................................................................ 16

Modo de Refrigeración 7002.4 │ 5002.4 │ 9002.4.......................................................... 16

Bomba de Calor 7002.4 │ 5002.4 │ 9002.4 ..................................................................... 16

BEFORE START-UP ............................................................................................................. 17

START UP ........................................................................................................................... 17

THERMOSTAT AND CONTROL......................................................................................... 17

MCX-15 CONTROL .............................................................................................................. 17

Main Functions of the Control System ............................................................................ 17

MCX-15 START UP .............................................................................................................. 18

Start Menu ...................................................................................................................... 18

Main Menu ..................................................................................................................... 18

Password Level ............................................................................................................... 19

Inputs/Outputs ............................................................................................................... 19

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS AXIAL FANS

Model 7002.4 .................................................................................................................. 20

Models 8002.4 │ 9002.4 ................................................................................................. 21

System Parameters ......................................................................................................... 22

Regulation Parameters ................................................................................................... 23

Compressors ................................................................................................................... 23

Alarms ............................................................................................................................. 24

HYDRONIC KIT ................................................................................................................ 26

TECHNICAL DATA ............................................................................................................... 26

OPERATING LIMITS ............................................................................................................ 27

MAINTENANCE ............................................................................................................... 27

CONSERVATION AND CLEANING ....................................................................................... 27

LUBRICANT ........................................................................................................................ 27

REFRIGERANT CHARGE ...................................................................................................... 28

OPTIONAL ...................................................................................................................... 28

ACCESSORIES / OPTIONAL ................................................................................................. 28

APPENDIX: SAFETY DATA R410A .................................................................................... 29

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

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.

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

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.

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.

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.

INTRODUCTION

CONTENTS

Purpose of the Manual

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

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

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

Repairs

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.

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS AXIAL FANS

DANGER

ATTENTION!

WARNING!

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

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

electrical shock that may cause personal damages.

 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.

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

SECURITY OF THE OPTIONAL HYDRONIC KIT WITH ELECTRIC HEATERS.

is perfectly drained of air.

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

DESCRIPTION OF THE UNIT

The EKWXA / EKWXBA units are compact reversible WATER / AIR units for the production of hot / cold water. They are designed for outdoor installation. Supplied with R-410A refrigerant charge, ready for installation.

These units are manufactured under a strict quality control throughout their process and once finished are tested in the factory, verifying the correct operation of all its components.

The unit is composed by:

 Hermetic compressor, alternative, with wide operating limits. It incorporates thermal protection of the windings (without requiring

additional protection), the oil load for its perfect lubrication and internal damping system. The compressor is mounted on the chassis with shock absorbers and is acoustically insulated. All this guarantees a silent operation and without vibration.

 External coils built with copper tube without welds and expanded in aluminum fins. Incorporate distributor with neck and calibrated

orifice (nozzle) to improve distribution of the gas in Cold mode.

 Coolant-water exchanger made from stainless steel plates (AISI 316) welded with bronze base. It is perfectly insulated with insulating

heat material to prevent the exchange of heat with the outside. It has built-in electrical heaters as an anti-ice protection to avoid the risks of breaking it by freezing the water in case of lack of flow.

 Fan motor mounted with a square base and circular inlet embouchure suitable for the aerodynamic performance of the flow driven

by the fan itself. Ready for outdoor installation, totally closed, with permanent lubrication. It consists of aluminum blades designed to obtain a low sound level, inserted into the outer rotor of a high efficiency motor, with IP-54 protection and class F winding insulation. It has internal thermal probes incorporated for its protection, as well as external security grid.

 Thermostatic expansion valve with MOP at the plate exchanger inlet for cooling mode operation. The expansion in the external coil,

when necessary (operation in heating mode), is realized through a hole.

 Safety pressure switch connected to the compressor output (maximum pressure point) of manual reset. Its cut is calibrated at a

pressure of 42 bars.

 Bidirectional dehydrator filter type mounted on the liquid line. It consists of a solid desiccant core that minimizes vibration and friction

during the operation of the equipment besides absorbing excess moisture and filter any impurities.

 Tank to contain the variations of the refrigerant charge required by the machine when changing its operation between Cool/Heat.  Check valves only on Heat Pump units to bypass the expansion system of the secondary exchanger block. Cold mode performs the

bypass to battery, in Heat mode, it is done to the expansion valve.

 The sheet metal structure of these equipments is resistant to the weather and is formed by galvanized steel sheet which is applied

an oven painting process by polymerization of powder paint which provides excellent overall coating and especially in corners and edges. The self-supporting base is constructed with highly rigid steel. The rest of the structure is galvanized steel. The design is done for an easy maintenance. The finished set has RAL 1013 color.

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS AXIAL FANS

EKWXA/EKWXBA

7002.4

8002.4

9002.4

COOLING MODE

(1)

Cooling capacity

178,3

200,1

213,6

Total absorbed capacity

(3)

61,3

73,8

81,8

Total rated current

107,7

123,6

138,2

Compressor absorbed power

54,2

72,8

Compressor rated current

94,3

111,8

125,2

Evaporator water flow

m³/h

35,5

Evaporator pressure drop

kPa

70,8

77,5

EER

2,91

2,71

2,61

ESEER

- -

HEATING MODE

(2)

Cooling capacity

194,9

224,3

244,2

Total absorbed capacity

(3)

60,7

74,5

86,9

Total rated current

112,1

129,1

142,4

Compressor absorbed power

56,7

65,8

73,2

Compressor rated current

98,1

112,1

125,6

COP

3,21

3,01

2,81

SCOP

- -

REFRIGERANT

Number of circuits

Type

R-410A

Global warming potential (GWP)

(4)

2088

Refrigerant charge cooling only (no optional)

2 x 23

2 x 22

2 x 23

Refrigerant charge heating pump (no optional)

2 x 23

2 x 23.5

2 x 24

COMPRESSOR

Type

SCROLL

Number of compressors

Number of power stages

Maximum current for operating circuit

Locked rotor current

249

264

309

Oil type

POE 160 SZ

Oil volume

2 x (6,7 + 6,7)

Crankcase strength

2 x (75 + 75)

FANS

Type

AXIAL

Number of total fans

4 6

Rated air flow

m3/ h

91690

105398

Available static pressure

Diameter

800

710

Absorbed power (by fan)

2,06 / 1,33

1,52/ 0,97

Rated current (by fan)

3,8 3 3

Speed

r.p.m.

910

914

TECHNICAL DATA

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. (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.

05.17 207646 Rev.103

EKWXA│EKWXBA

AIR-COOLED WATER CHILLERS

AXIAL FANS

EKWXA/EKWXBA

7002.4

8002.4

9002.4

OUTDOOR HEAT EXCHANGER

Type

Aluminum fin coil and copper tubing

Quantity

Front surface of the exchanger

5,18 + 5,18

INDOOR HEAT EXCHANGER

Type

PLATES (Water / Refrigerant)

Quantity

Evaporator water flow

m3/ h

35,5

Evaporator pressure drop

KPa

70,8

77,5

Water volume

8,4

Anti-ice resistance

100

WATER CONNECTIONS

Type

SLOTTED – Victaulic type

External diameter

(‘’)

3 ''

ELECTRIC SPECIFICATIONS

Supply voltage

V / ~F / Hz

400V - 3+N 50Hz

Maximum intensity

156,2

178,2

196,6

Starting current (AC)

334,7

362,1

416,3

SOUND LEVEL

Sound power

dB(A)

92,8

94,7

94,8

Sound pressure (5m)

(5)

dB(A)

72,9

WEIGHT AND DIMENSIONS

Large

3200

Width

2250

High

2150

Net weight of heat pump units - EKWXBA

1720

1753

1759

Net weight of cooling only units - EKWXA

1686

1719

1725

TECHNICAL DATA

Note:

05.17 207646 Rev.103

EKWXA│EKWXBA

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.  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.

+ 21 hidden pages

Hitecsa EKWXA 7002.4, EKWXA 8002.4, EKWXBA 7002.4, EKWXA 9002.4, EKWXBA 8002.4 Installation, Operation & Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual