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05.17 207443 Rev.104

EKWXA │ EKWXBA

AIR-COOLED WATER CHILLERS ─ AXIAL FANS

Models: 801.1 │ 1001.1 │ 1201.1 │ 1501.1

Cooling Capacities: from 21,1 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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INDEX

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

CONTENTS .......................................................................................................................................... 4 REGULATIONS AND CERTIFICATIONS .................................................................................................. 5 SAFETY PRECAUTIONS ........................................................................................................................ 5

DESCRIPTION OF THE UNIT ............................................................................................................. 6

TECHNICAL DATA ........................................................................................................................... 7

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 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

MAINTENANCE ..............................................................................................................................17

CONSERVATION AND CLEANING ....................................................................................................... 17 LUBRICANT ....................................................................................................................................... 17 REFRIGERANT CHARGE ..................................................................................................................... 18

OPTIONAL .....................................................................................................................................18

ACCESSORIES / OPTIONAL................................................................................................................. 18

APPENDIX: SAFETY DATA R410A ...................................................................................................19

EKWXA – EKWXBA – MINI KRONO II

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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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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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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.

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TECHNICAL DATA

Serie MINI KRONO 2 801.1 1001.1 1201.1 1501.1

COOLING MODE

Cooling capacity(1) kW 21,1 24,8 28,7 38,7

Total absorbed capacity(3) kW 7,4 9,3 10,1 15,7

EER 2,85 2,67 2,84 2,46

ESEER 3,19 3,04 3,21 2,83

HEATING MODE

Cooling capacity(2) kW 25,2 29,3 33,7 40,3

Total absorbed capacity(3) kW 8,3 9,7 11,2 14,7

COP 3,04 3,02 3,01 2,74

SCOP - - - -

REFRIGERANT

Number of circuits R-410A

Type 1

Global warming potential (GWP)(4) 2088

Refrigerant charge EKWXA (no optional) Kg 4,5 5,5 4,8 6,5

Refrigerant charge EKWXBA (no optional) Kg 8 8,4 9 10,7

COMPRESSOR

Type SCROLL

Number of compressors 1

Oil type POE160SZ

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

Diameter mm 710 800

Absorbed power kW 1,4 1,9

INDOOR HEAT EXCHANGER

Type Water - Refrigerant

Quantity 1

Evaporator water flow m3/ h 3,7 4,3 5,2 6,6

Evaporator pressure drop KPa 26,3 22,2 24,8 36,2

Anti-ice resistance W 50

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

WATER CONNECTIONS

Type SLOTTED – Victaulic type

External diameter (‘’) 1 1/2

WEIGHT AND DIMENSIONS

Large mm 1200

Width mm 1050

High mm 1470

Net weight of heat pump units - EKWXBA kg 312 340 348 354

Net weight of cooling only units - EKWXA kg 304 332 338 344

(1) Calculated according to UNE-EN-14511 regulation, for rated indoor temperature conditions of 27ºC D.B./19ºC W.B. and 35ºC of outdoor temperature. (2) Calculated according to UNE-EN-14511 regulation, for rated indoor temperature conditions of 20ºC and 7°C D.B./6ºC W.B of outdoor temperature. (3) Power absorbed by the compressor and the motor fans at rated conditions. Calculated according to UNE-EN-14511 regulation. (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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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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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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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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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.

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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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

Nominal Water Flow m3/h 3,7 4,3 5,2 6,6

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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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)T

em

pera

tura

exte

rior

/ O

utd

oor

tem

pera

ture

/ T

ém

pera

ture

éxte

rieur

(°C

)

-7-10 -5 0 5 10 15 20 25-20

-10

0

10

20

30

40

55

LWT (°C)

Tem

pe

ratu

ra e

xte

rio

r /

Ou

tdoo

r te

mp

era

ture

/ T

ém

pera

ture

éxte

rieu

r (°

C)

25

46

-20

-10 -5 0 5 10 15 20 25

-15

-10

0

10

20

30

40

46

LWT (°C)

Tem

pe

ratu

ra e

xte

rio

r /

Ou

tdoo

r te

mp

era

ture

/ T

ém

pera

ture

éxte

rieu

r (°

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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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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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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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

HEAT PUMP OPTION

Power Supply V/~/Hz 400/3/50

Number of Heat Pump 1

Reserve Heat 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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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

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.

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!

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MAINTENANCE

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.

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

WATER MANOMETERS Incorporation of manometers for reading the inlet and outlet pipes

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

MULTIPLE UNITS MANAGEMENT

Modular control system via master/slave

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

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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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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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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We reserve the right to add modifications without prior notice.