Hitecsa CCHIBA, CCHIBA 301, CSTIBA, CSTIBA 301 Installation, Operation And Maintenance Manual

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CSTIBA/CCHIBA

PACKAGED AIR-AIR ─ SPLIT HORIZONTAL INVERTER UNITS

Models: 301

HEAT PUMP

Installation, Operation and Maintenance Manual

IOM_CCHIBA-CSTIBA_301_207925_170706_EN

Cooling Capacities: from 1.3 kW to 8.3 kW Heating Capacities: from 1.2 kW to 8.1 kW

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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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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

CSTIBA/CCHIBA

INDEX

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

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

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

RECEPTION ....................................................................................................................... 7

INSPECTION ............................................................................................................................ 7

RIGGING ................................................................................................................................. 7

STORAGE ................................................................................................................................ 7

INSTALLATION LOCATION ................................................................................................ 8

SERVICE AREA (MM) ................................................................................................................ 8

CCHIBA 301 .......................................................................................................................... 8

CSTIBA 301........................................................................................................................... 8

WEIGHT DISTRIBUTION (KG).................................................................................................... 9

UNIT SETTLEMENT .................................................................................................................. 9

START-UP ....................................................................................................................... 10

OPERATION LIMITS ............................................................................................................... 11

DRAINAGE ............................................................................................................................ 12

AIR DUCTS............................................................................................................................. 12

COMPRESSOR LUBRICANT .................................................................................................... 12

TECHNICAL DATA ........................................................................................................... 13

DIMENSIONS .................................................................................................................. 15

CSTIBA 301 ........................................................................................................................... 15

CCHIBA 301 ........................................................................................................................... 16

COOLING CIRCUIT ................................................................................................................. 17

DISCHARGE LINES ................................................................................................................. 17

LINES POSITION .................................................................................................................... 17

REFRIGERANT CHARGE ......................................................................................................... 20

MAINTENANCE ............................................................................................................... 21

APPENDIX: SAFETY DATA R410A .................................................................................... 22

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

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.

INTRODUCTION

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

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

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

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.

REGULATIONS AND CERTIFICATIONS

ISO 9001:2015 CERTIFICATION: HILPUS AIRE ACONDICIONADO S.L., trying always to find the customer satisfaction,

has obtained the ISO 9001:2015 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.

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

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

order to avoid electrical shock that may cause personal damages.

SAFETY PRECAUTIONS

 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.

 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.

 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.

 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.

 When repairing the unit, use only original spare parts and install them properly in the same position where old parts

were placed.

 The equipment is designed to work with 100% recirculated air. For installations with external air supply, consult our

commercial department.

 Do not install the unit in explosive atmosphere.

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

RECEPTION

INSPECTION

 Units are delivered with special protective packing; therefore when it arrives, please inspect it carefully to check that

no damage has occurred during transport and that the unit has been supplied complete with all parts specified in the order. If any damage is found, immediately file a claim with the transport company. (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.

STORAGE

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

 Keep the unit away from direct sunlight, rain, sand, wind or temperatures above 50ºC.

 Storage temperature: maximum 50ºC, minimum -10ºC.

 Maximum humidity: 90%.

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SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

INSTALLATION LOCATION

 Check if the base is able to support the weight of unit during operation.  Reserve a minimum service area.  Choose a place free of dust or any other foreign material that could clog or damage the condenser coil. The location

should also be a place that cannot be flooded.

 Consult and respect all regulations concerning installation of air conditioning systems.  Install anti-vibration supports to avoid noise transmission.

SERVICE AREA (mm)

CCHIBA 301

CSTIBA 301

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

CSTIBA

1 2 3 4 TOTAL

301

7 8 8 8 31

CCHIBA

1 2 3 4 TOTAL

301

150

CSTIBA 301

CCHIBA 301

WEIGHT DISTRIBUTION (kg)

UNIT SETTLEMENT

 Make sure that the unit is correctly levelled.  The bed frame should be strong and solid enough to support the weight of the machine.

 Verify that the water drain of the indoor is working properly.

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

BEFORE START-UP

EVAPORATOR

CONDENSER

6. Switch

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.  If outdoor temperature is under 25ºC, verify the crankcase heater of the compressor.  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.

START-UP

 Start-up should be performed by qualified technical people.

 Use a start-up check list: record inlet and outlet temperatures of the indoor coil, volts and amps of each compressor

and fan motor, suction and discharge pressure of each compressor.

 Remember that after the first 4 hours of operation, it is necessary to clean the filters.

 Monitor at least 3 cooling cycle operations.

 Due to the unit has frequency converters for compressor and fans, it’s essential that the differential supply be at

minimum 300 mA to prevent supply cuts caused by the differential switch.

1. Power Supply 230/I/50 + T

2. Circuit Breaker

3. Th-Tune Termostat

4. Electrical Panel

5. Comunication Cables (Shielded and Twisted)

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

OUTDOOR AIR

INDOOR AIR

DRY

WET

DRY

WET

COOLING

ºC

Standard

35ºC - 27ºC

19ºC

Minimum

-10ºC

20ºC

15ºC

Maximum

50ºC - 32ºC

23ºC

HEATING

ºC

Standard

7ºC

6ºC

20ºC

Minimum

-12ºC

-13ºC

15ºC

Maximum

24ºC

18ºC

26ºC

OPERATION LIMITS

The units can run at a maximum altitude of 1500 m above mean see level with a loss in performance below 3%. For other conditions, please consult Hitecsa.

These units have been designed to work with 100% of indoor air returned. It is forbidden to design an installation with a 100 % outdoor air returned. See the working limits.

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

order to avoid electrical shock that may cause personal damages.

 Main power supply of the unit should same as the data shown on the nameplate. HITECSA will not be held responsible

for damages resulted from non observance of the above.

 Always use the wiring diagram sent with the unit to make electrical connections

 Check that the crankcase heater has been working at least 24 hours prior to the start-up of the unit.

 Power supply should be within 10% of Volts indicated on the unit nameplate.

 Do not operate the unit at different voltage from the one shown on the unit nameplate.

 The installer should put line protection elements in compliance with current legislation.

 The interconnecting wires should be protected with an electrical duct or put inside a groove channel.

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SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

DRAINAGE

 Indoor drainage (of condensate water) has a 3/4” gas

connection.

 Condensate drainage pipe diameter should be equal or

larger than the unit connection depending on line length and general building configuration.

 Drainage line should have a minimum inclination of 2%

for proper water evacuation.

 When drainage line is exposed to temperatures below

0ºC, it is necessary to provide thermal insulation or electrical heating wire to avoid water freezing and tube damages.

 It is advisable to install a trap with proper dimensions.

AIR DUCTS

 Air duct dimensions will be determined according to the airflow and available static pressure.

 Ducts must be designed by qualified technical people.

 Use ducts made of non-inflammable materials in order to avoid any emission of gas in case of fire. It is advisable to

use metal sheet duct with insulation.

 Use flexible ducts to connect air ducts on the unit and thus avoid vibration and noise transmission.

COMPRESSOR LUBRICANT

Compressors with R410a refrigerant uses synthetic lubricant with Ester base, each manufacturer uses specific oil for his product. The system must not remain open to the atmosphere more than 15 minutes. Due to oil qualities affect directly the correct work of compressor, you must be very careful during manipulation: Do not mix the oil with other substances.

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

CCHIBA

301

CAPACITIES

Rated Cooling Capacity (1)

7.4

Cooling Capacity (20 – 100 – 120 Hz)

1.2 – 7.4 – 8.1

Rated Heating Capacity (2)

7.5

Heating Capacity (20 – 100 – 120 Hz)

1.3 – 7.5 – 8.3

Coeficient EER

SEER

4.6

Class

SCOP (Warm Zone)

4.1

Class

A+

Sound Power

dBA

REFRIGERANT

Type

R-410A

Global Warming Potential (GWP) (3)

2088

Number of Refrigerant Circuits

Frigorific Connection Liquid Line

“

3/8

Frigorific Connection Gas Line

“

1/2

Charge (Include 0 m of Lines) (4)

2.7

COMPRESSOR

Type

BRUSHLESS DC MOTOR

Number

Oil type

Ester VG74

Oil Volume

0.65

INDOOR HEAT EXCHANGER

Type

Aluminum Fins and Copper Pipes

Frontal Surface

0.372

Fins Size

1.8

Piping Diameter

5/16

ELECTRICAL SPECIFCATIONS

Power Supply

V / phases /

220-240 / I / 50

Electric Connections

mm²

2 x 2.5 + T

Interconnection Between Units

Twisted Pair + Shielded

OUTDOOR FAN

Type

Centrifugal with Double Suction

Model

10/10 DD

Voltage

230/1/50

Motor Power

0.55

Transmission

Integrated in Motor

Rated Airflow

m3/h

2600

Maximum Airflow

m3/h

3000

Available Static Pressure

Maximum Speed Fan

R.P.M.

1014

DIMENSIONS AND WEIGHT

Length

1445

Width

825

Height

504

Weight

150

TECHNICAL DATA

(1) Cooling Rated Conditions: Internal temperature DB: 27ºC, Internal temperatura WB: 19ºC (2) Heating Rated Conditions: Internal temperature DB: 20ºC (3) 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. (4) Just the units which has serial “FLARE” (not from option) are charged with refrigerant, the rest come pre-charged with dry nitrogen to prevent the emtry of moisture.

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

CSTIBA

301

CAPACITIES

Rated Cooling Capacity (1)

7.4

Cooling Capacity (20 – 100 – 120 Hz)

1.2 – 7.4 – 8.1

Rated Heating Capacity (2)

7.5

Heating Capacity (20 – 100 – 120 Hz)

1.3 – 7.5 – 8.3

Coeficient EER

SEER

4.6

Class

SCOP (Warm Zone)

4.1

Class

A+

Sound Power at Low Speed

dBA

Sound Power at Medium Speed

dBA

Sound Power at High Speed

dBA

REFRIGERANT

Type

R-410A

Global Warming Potential (GWP) (3)

2088

Frigorific Connection Liquid Line

“

3/8

Frigorific Connection Gas Line

“

1/2

Charge (4)

DRAINAGE

Condensate Pump

YES

Available Pressure

mm. W.G

400

INDOOR HEAT EXCHANGER

Type

Aluminum Fins and Copper Pipes

Frontal Surface

0.360

Fins Size

2.1

Piping Diameter

7.2

ELECTRICAL SPECIFCATIONS

Power Supply

V / phases /

220-240 / I / 50

Electric Connections

mm²

2 x 1.5 + T

Interconnection with Termostat

Twisted Pair + Shielded

Interconnection Between Units

Twisted Pair + Shielded

INDOOR FAN

Diameter

380

Voltage

220-240 / I / 50

Motor Power

0.13

Transmission

AC Integrated Motor 3 Speeds

Rated Airflow

m3/h

840 / 1000 / 1200

DIMENSIONS AND WEIGHT

Length

830

Width

830

Height

300

Weight

calculated in terms of 100-year warming potential. (4) Only the outdoor units which has serial “FLARE” valve (not from option) are charged with refrigerant, the rest come Pre-Charged with dry nitrogen.

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

CONSTRUCTION DETAILS

DIMENSIONS

CSTIBA 301

1. Drain

2. Cooling Connections

3. Electrical Panel

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SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

CONSTRUCTION DETAILS

CCHIBA 301

4. Compressor

5. Outdoor Heat Exchanger

6. Electrical Panel

7. Outdoor Turbine

8. Outdoor Drain Diameter 3/4" Male

9. Cooling Connections

10. Electrical Connections Inputs

11. Main Switch

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CCHIBA/CSTIBA

SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

When working with the machines in operation, discharge line temperature is

very HIGH and could hurt people.

REFRIGERANT LINES

For more information on the dimensioning of the refrigeration lines, request document with reference 207682 Rev100.

COOLING CIRCUIT

Split systems demand a correct disposition of refrigerant piping and a correct connection between both indoor and outdoor units.

 Pressure drop of the line  Circulation speed of the refrigerant  Refrigerant mass

DISCHARGE LINES

In heat pump operation, the low pressure line works as high pressure line.

LINES POSITION

1. When indoor unit is at a lower level than outdoor unit:

It is not essential to install traps in the vertical line. However, it could be convenient to install some every 6 to 9 meters in order to help oil return.

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SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

R410A

Liquid line

3/8”

1/2”

5/8”

3/4”

7/8”

1 1/8”

1 3/8”

Gas quantity

gr/m

100

166

244

341

538

867

2. When indoor unit is at the same level as outdoor unit:

Rise the suction line to a higher level than the exchanger in order to avoid liquid refrigerant back to the compressor.

3. When indoor unit is at a higher level than outdoor unit.

NOTES:

 Refrigerant lines should be as short and straight as possible.

 Use recommended diameters to reduce quantity of refrigerant in the system.

 Fasten the tubes to fixe elements by means of braces to avoid vibration.

 Carry out welding works in dry nitrogen atmosphere inside the pipe to be welded -USE A BOTTLE WITH PRESSURE

REGULATOR- to avoid the appearance of oxide and to expel rest of polluting material or humidity. Use rods with a minimum 15% of silver alloy.

 Insulate suction line in order to avoid condensation. Liquid line will be insulated only when exposed to high

temperatures (solar radiation, etc.).

 Horizontal segment of suction line: 4% pitch towards the compressor.

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SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

It is forbidden by law to expel refrigerant into the atmosphere; therefore, it is

necessary to recover all the refrigerant and to avoid leaks.

caution previously the realization of unions.

 In addition to refrigerant, sometimes it’s necessary to add oil. For more than 25 meters, add 30 grams.

 If liquid line is descendant and there is a considerable height difference, you have to compensate the excess pressure

before the expansion.

 If liquid line is ascendant and there is a considerable height difference, the formation of gas refrigerant before the

expansion must be avoided.

 If you do not find the right pipe diameter, you can use the immediately lower diameter. The system will function

normally only with a slight capacity reduction.

Units without valves come loaded with nitrogen pressure leak test. Drain with

 Units CSTIBA/CCHIBA are supplied with nitrogen charge at a pressure between 5 and 6 bar. Before proceeding

to any welding work, it’s necessary to remove this charge out of the circuit. Once you have finished, only qualified and trained service staff can make the vacuum and charge with the right amount of refrigerant.

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SPLIT HORIZONTAL INVERTER UNITS PACKAGED AIR-AIR

Never use oxygen to carry out leak tests. Oxygen reacts violently when in contact

death.

REFRIGERANT CHARGE

with oil and could cause an explosion resulting in damage, personal injuries or even

 Should it be necessary to add or recover refrigerant, do it always in LIQUID phase, never in gas or vapour phase

since this would cause wrong mixing conditions.

 Due to its high pressure and quick evaporation, refrigerant R410A cannot be kept in liquid phase inside charge

cylinder because bubbles would form, making reading difficult. Use always a scale to charge the unit with refrigerant.

If it’s necessary to make welding operations, you must fill the circuit with dry

nitrogen. Combustion of R410A refrigerant generates toxic gases.

 Repair immediately any refrigerant leak.

 Never overcharge the system.

 Never use compressor as a vacuum pump.

 If symptoms of refrigerant loss appear during operation, it’s necessary to carry out a leak test. Leak detectors usually

employed with CFC and HCFC cannot be used with R410a, due to chlorine in its composition. A leak detector for R134A can be used but the sensitibity will be lower (when sensitibity is 1 for R134A, it falls to 0,6 for R410A).

 To find small leaks, you will need a detector for HCF. Sensitibity for R410A is approx. 23 grams per year.

 If a gas leak is found, it will be necessary to remove and completely recover the refrigerant charge. Pressurize the

system with dry nitrogen. If no leakage is detected, then do the vacuum and charge again with refrigerant.

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SPLIT HORIZONTAL INVERTER UNITS

PACKAGED AIR-AIR

than a qualified technician can switch on electrical power.

MAINTENANCE

Before performing any service or maintenance operation, turn off the main power

switch of the system to avoid any personal injuries. Locked it so that nobody other

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.

• Fans and motors: Adjust transmission belt at least twice during the first month of operation and then check every 1.000 hours. Fan and motors do not need additional lubrication.

• 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 values (volts and amperes) of each compressor and fan motor. Verify the starting current. Check the good operation of all relays, pressostats and phase sequence relay of Scroll compressor.

• Air filters: Clean filters after the first 4 operating hours and then every 3 months (or even before). Wash filters with water and detergent, rinse thoroughly and let dry.

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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.

APPENDIX: SAFETY DATA R410A

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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