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Service manual for products using R32

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Contents

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3. m W Absolute pressure Tem t C ESIE1T9 05 R32 blocked inside the refrigerant system Always verify if refrigerant might be trapped inside the refrigerant circuit by flushing with nitrogen prior to brazing works assure that nitrogen flow comes through Recover the refrigerant to verify the recovered quantity with the charged quantity Always cut out the parts that need to be repaired f cutting out the parts is impossible then puncture the pipe Additional precautions Precautions when performing electrical work or replacing electric components Keep a sufficient distance away from causes of fire ignition Sources such as gas burning equipment and electric heaters in places where installation repairs or similar work on air conditioning equipment is performed Check that there are no dangerous or combustible items nearby and ensure fire extinguisher is close at hand f the gas comes into contact with open flame or other material heated to gt 300 to 400 C it will cause thermal decomposition possibly producing toxic gas Toxic gas generation is the same with R410A R22 and not limited to R32 Replace spare parts specified by manufacturer Do try to modify or to add any inductive capacitance loads to the circuit Replace components only with parts specified by the manufacturer Cautions during vacuuming and ch
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6. el TM i H Pressure MPa c C o5IETo5 U5 P DAIK IN Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 SECTION 1 Identification of the substance mixture and of the company undertaking Product identifier Trade name HFC 32 CAS Number 75 10 5 EC number 200 839 4 Registration number 01 2119471312 47 0010 Relevant identified uses of the substance or mixture and uses advised against No further relevant information available Application of the substance the mixture Refrigerant Details of the supplier of the safety data sheet Supplier DAIKIN CHEMICAL EUROPE GmbH Immermannstraf3e 65 d 40210 D sseldorf GERMANY Phone 49 211 179225 0 Manufacturer DAIKIN Industries LTD Chemicals Division Umeda Center Bldg 4 12 Nakazaki Nishi2 chome Kita Ku Osaka 530 8323 Japan Tel 81 6 6373 4345 Fax 81 6 6373 4281 DAIKIN FLUOROCHEMICALS CHINA CO LTD Changshu International Chemical Industrial Park Haiyu Town Changshu Jiangsu 215522 China Tel 86 512 5232 2266 Further information obtainable from sales daikinchem de Emergency telephone number During normal opening times 49 211 179225 0 SECTION 2 Hazards identification Classification of the substance or mixture Classification according to Regulation EC No 1272
7. DAIKIN ESIE19 05 Service Manual Service manual for products using R32 ESIE1T 9 05 Preface The Montreal Protocol regulates ozone depleting HCFCs and calls for a complete phase out of HCFCs by 2020 for developed states and by 2030 for developing states The developing states have a longer span until the complete phase out and HCFC 22 is still in common use but a switchover in refrigerant is expected to start from 2013 when the gradual reduction in HCFCs is to come into action Switchover to ozone friendly HFOs is also in progress in developed states however since HFCs are one of the greenhouse gases GHG contributing to global warming they are a target of emission reduction as per the Kyoto Protocol As an alternative to HCFC 22 in developing states and to introduce a refrigerant with less global warming potential GWP in developed states Daikin adopted R32 Global warming potential A relative measure used to define the impacts of emissions of different GHGs will have on global warming Based on a comprehensive consideration of refrigerants GWP safety in terms of flammability and toxicity energy efficiency of air conditioning systems using the refrigerant and the cost of the refrigerant itself Daikin as a leader in the air conditioning system industry decided to develop and product air conditioning systems that use R32 as refrigerant H32 is a safe efficient refrigerant that has a lower environ
8. 2008 GHS02 flame Flam Gas 1 H220 Extremely flammable gas GHS04 gas cylinder Press Gas H280 Contains gas under pressure may explode if heated Classification according to Directive 67 548 EEC or Directive 1999 45 EC F Extremely flammable R12 Extremely flammable Information concerning particular hazards for human and environment The product has to be labelled due to the calculation procedure of the General Classification guideline for preparations of the EU in the latest valid version Classification system The classification is according to the latest editions of the EU lists and extended by company and literature data GB EVIE 0 00 P DAIKIN Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 Label elements Labelling according to Regulation EC No 1272 2008 The substance is classified and labelled according to the CLP regulation Hazard pictograms GHS02 GHS04 Signal word Danger Hazard statements H220 Extremely flammable gas H280 Contains gas under pressure may explode if heated Precautionary statements P210 Keep away from heat sparks open flames hot surfaces No smoking Leaking gas fire Do not extinguish unless leak be stopped safely P381 Eliminate all ignition sources if safe to do so P410 P403 Protect from sunlight Store in a well ventilated place P403 Store
9. NOAEC inhalation 105000 mg m rat OECD 413 CMR effects carcinogenity mutagenicity and toxicity for reproduction Mutagenicity Ames test negative OECD 471 In vitro mammalian chromosome aberration test negative OECD 473 Mammalian erythrocyte micronucleus test negative OECD 474 Toxicity for reproduction NOAEC inhalation 208000 mg m mouse OECD 478 read across Developmental toxicity NOAEC inhalation 105000 mg m rat SECTION 12 Ecological information Toxicity Aquatic toxicity EC50 96 h 142 mg l algae QSAR LC50 48 h 652 mg l daphnia QSAR GB ECvIE1 0 00 P DAIKIN Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 LC50 96 h 1507 mg l fish QSAR Persistence and degradability Not easily biodegradable 5 after 28 days OECD 301 D Behaviour in environmental systems Components Half life in air 1237 days Bioaccumulative potential Due to the distribution coefficient n octanol water an accumulation in organisms is not expected Mobility in soil No further relevant information available Other information Koc 1 49 21 73 QSAR log Koc 0 17 1 34 QSAR Additional ecological information General notes Ozone depleting potential ODP 0 Glonal warming potential GWP 650 Water hazard class 1 German Regulation Self assessment slightly haza
10. Properties of R32 R410A and R22 Pressure Temperature Graph Absolute pressure MPa AULAE LLLI 2 50 itt s til 1 orm DLL 0 50 0 00 ESIE19 05 3 Safety Precautions WHAT IF When executing a repair indoors Make sure that there is always forced fan ventilation 500 m3 h to guarantee the supply of fresh air and extraction of R32 out of the room to avoid concentration rise above the LFL When executing a repair outdoors Forced ventilation is only required when there is a possibility of refrigerant accumulation due to the surrounding walls or when unit is installed in a pit Accidental release of R32 Ensure enough ventilation Cut all power to the unit and try to extinguish any open flame when any accidental release of R32 should occur Evacuate the room and wait to return to the unit until all refrigerant has evaporated and evacuated Air inside the refrigerant system Air Oxygen must be avoided at all times inside any refrigerant circuit strongly advised to measure the saturated pressure temperature when a unit has been pumped down or when there is any doubt that air might have entered the system Use the pressure temperature graph to verify that any other gas has entered the system 00 7 fl 200 7T y MI alll MPa pri AANA Het hee
11. in a well ventilated place P501 Dispose of contents container in accordance with local regional national international regulations Other hazards Results of PBT and vPvB assessment PBT Not PBT VPvB Not vPvB SECTION 3 Composition information ingredients Chemical characterization Substances CAS No Description 75 10 5 Difluoromethane Identification number s EC number 200 839 4 SECTION 4 First aid measures Description of first aid measures General information Seek immediate medical advice After inhalation Take affected persons into fresh air and keep quiet Supply fresh air or oxygen call for doctor In case of unconsciousness place patient stably in side position for transportation After skin contact Immediately wash with water and soap and rinse thoroughly In cases of frost bites rinse with plenty of water Do not remove clothing After eye contact Rinse opened eye for several minutes under running water Then consult a doctor After swallowing If symptoms persist consult doctor Information for doctor Do not administer catecholamines Most important symptoms and effects both acute and delayed Frost bites Dizziness GB EVIE 0 00 P DAIKIN Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 Hazards Danger of disturbed cardiac rhythm Indication of any immediate m
12. measure There shall be no moisture in the pipe Water entering from outside such as rain Moisture due to dew condensation occurring inside the pipe Clogging of expansion valve capillary tube etc Insufficient cooling or heating Degradation of refrigerant oil Malfunction of compressor For reference Compressor is corroded due to moisture Flushing Vacuum drying Oxidized film generated during brazing Entering of foreign items such as dust particles and oil from outside Clogging of expansion valve capillary tube etc Insufficient cooling or heating Degradation of refrigerant oil Malfunction of compressor Not clogged Same as the items on the left Do not use tools or devices previously used with a different type of refrigerant 1 Drying 2 Cleaning 3 Tightening no moisture free of contamination air tightness There shall be no dust in the There shall be no refrigerant pipe leak eS T Insufficient brazing Inadequate flaring or insufficient tightening torque Inadequate tightening of flange connection Gas shortage Insufficient cooling or heating Temperature increasing of discharge gas Degradation of refrigerant oil Malfunction of compressor Clogged Capillary is clogged with dust Follow the basic brazing procedure Follow the basic flaring procedure Follow the basic flange connection proc
13. 10A it cannot be shared Always check with the tooling manufacturer 15 05 ll Explanation of Tools for R32 Tools pictured are provided for purpose of example only For more information about specific tools contact the air conditioning and refrigeration service tool dealer Ra Gauge manifold Supports R32 R410A pressure Ifthe gauge manifold supports R410A it can also be used with R32 if the temperature is recalculated High pressure gauge 0 1 to 5 3 MPa Low pressure gauge 0 1 to 3 8 MPa Bore of connecting portion uses 5 16 flare screw Charge hose Supports R32 R410A pressure charge hose supports R410A it can also be used with R32 Bore of connecting portion uses 5 16 flare screw Weighing Used for measuring of weight the weighing instrument can be shared with HFCs R32 instrument R410A and conventional refrigerants R22 etc Can be shared between R32 R410A and conventional refrigerants R22 etc Pipe cutter Can be shared between R32 R410A and conventional refrigerants R22 etc Flaring tool Supports flare size A size for R382 R410A Ifthe flaring tool supports R410A it can also be used for R32 lt gt Flare size is different between R22 and R32 R410A Torque wrench e flare nut width across flats B size for R32 R410A If the torque wrench supports R410A it can also be used for H32 Width across flats is differe
14. 7 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 Contact sales daikinchem de Abbreviations and acronyms RID R glement international concernant le transport des marchandises dangereuses par chemin de fer Regulations Concerning the International Transport of Dangerous Goods by Rail ICAO International Civil Aviation Organization ADR Accord europ en sur le transport des marchandises dangereuses par Route European Agreement concerning the International Carriage of Dangerous Goods by Road IMDG International Maritime Code for Dangerous Goods IATA International Air Transport Association GHS Globally Harmonized System of Classification and Labelling of Chemicals EINECS European Inventory of Existing Commercial Chemical Substances CAS Chemical Abstracts Service division of the American Chemical Society VOC Volatile Organic Compounds USA EU DNEL Derived No Effect Level REACH PNEC Predicted No Effect Concentration REACH LC50 Lethal concentration 50 percent LD50 Lethal dose 50 percent Flam Gas 1 Flammable gases Hazard Category 1 Press Gas Gases under pressure Compressed gas Data compared to the previous version altered GB ESIE19 05 Warning Daikin products are manufactured for export to numerous countries throughout the world Prior to purchase please confirm with your local authorised importer distributor and or retailer whether this produc
15. Not flammable Slightly Low flammable Highly flammable flammable burning velocity lt 10 cm s R744 CO2 R717 Ammonia R152a R290 R410A R32 R1234yf ze R600a Propane iso butane Class 3 High Flammability B3 B2 B2L Class 1 Non Flammability B1 Class 2 Lower Flammability Ammonia R410A R22 ainnifine ratrinanrante far tavini Anan mnt Imsmminmmtifinea at nnnnnntratinna than nr aniinl tn ANN nnm 15 05 2 Properties of Refrigerants Refrigerant Properties of R32 Major refrigerant properties of R32 are summarized in the chart below Formula CHF CHF CF CHCLF Composition epi icis H32 R125 Single Mixture ratio wt 9 50 50 wt component Global warming potential GWP 4 6 2090 1810 5 Flammability Slightly flammable No flammable Ashrae 34 amp draft ISO817 A2L 1 1 Physical property value under a temperature condition of 50 C 2 Temperature condition 0 50 C the values are relative values based on R22 as 100 3 Te Tc SC SH 5 50 3 0 C 4 GWP Global warming potential values are specified in IPCC 4th Assessment Report COP physical property 3 95 Ozone depletion potential ODP 7 ESIE1T9 05 Flammability of R32 R32 may burn slightly when all of the following condition gas concentration ignition energy are met but pose no risk under the normal usage conditions for air conditioni
16. Partition coefficient n octanol water at 25 C 0 21 log POW Viscosity Dynamic Not determined GB ESIE19 05 P DAIKIN _ Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Kinematic Not determined Solvent content VOC EC Other information No further relevant information available SECTION 10 Stability and reactivity Reactivity Chemical stability Thermal decomposition conditions to be avoided No decomposition if used according to specifications Possibility of hazardous reactions Reacts with alkaline metals Reacts with earth alkaline metals Reacts with powdered metals Conditions to avoid Exposure to open flame or higher temperatures Oxidants Incompatible materials No further relevant information available Hazardous decomposition products Hydrogen fluoride SECTION 11 Toxicological information Information on toxicological effects Acute toxicity LD LC50 values relevant for classification Inhalative LC50 4 h 1107000 mg m rat OECD 403 Primary irritant effect the skin No irritant effect known on the eye No irritant effect known Sensitization No sensitizing effects known Additional toxicological information Cardiotoxicity NOAEC inhalation 735000 mg m dog No cardiac sensitisation potential of HF C 32 up to 35 v v in air to adrenaline dogs Repeated dose toxicity
17. R410A units but there is a difference in pressure and refrigerant oil used between the R32 and R22 units HFC units HFC units HCFC units Composing Single component Quasi azeotropic Single component substances refrigerant Mixture R32 R125 refrigerant 50 50 wt Standard design RA 4 17 MPa G RA 4 17 MPa G 2 75 MPa G pressure PA 4 0 MPa G or PA 4 0 MPa G 3 6MPa or 3 8 MPa G Refrigerant oil synthetic oil synthetic oil Mineral oil ether ether suniso Refrigerant piping consists of copper steel pipes joints and other fittings All components must be selected and installed in conformity with the standards pertaining to the Refrigeration Safety Regulation Same piping as for R410A can be used ESIE19 05 R32 related Regulations As of March 2015 gt 1505419 150817 amp EN378 Classification based on ISO UL 2182 EN378 Usage UL 207 Restriction UL 250 UL 471 for Safety 1 60335 2 40 EN60335 2 40 UL 474 Under revision Based on IEC UL 484 UL 984 UL 1995 UL 60335 2 40 Under ASHRAE 34 and draft ISO 817 R32 is a slightly flammable gas it will only burn when concentration is between lower amp upper flammable limits LFL amp UFL Lower flammable limit Upper flammable limit R32 concentration 13 3 29 3 CERI Kayak Japan 2011 R32 is rated A2L meaning slightly flammable since the burning velocity is rather low and non toxic Class 2L
18. arging Do not overfill the refrigeration system Ensure that contamination of different refrigerants does not occur when using charging equipment gt 1 19 05 Reference 1 Thermodynamic Properties of R32 lt R32 Saturation Chart gt R32 Thermodynamic Properties Saturation Chart Inserted function PsT T VfT T VPT P T SfT T SPT P T V y 7 A 5 S j 5 MPa m kg kJ kg kJ kg K kJ kg K 0 000869 0 13091 0 000873 0 12107 0 000878 0 11211 0 000883 0 10393 0 000888 0 09646 0 000892 0 000897 0 000903 0 000908 0 000913 0 000981 0 000988 0 000995 0 001003 0 001011 8 5 826 0 00256 0 00236 414 15 414 15 1 6487 E 6487 ESIE19 05 reri of R32 Graph gt Dw r4 Adyeujue oyloeds 089 0 9 099 059 079 Ot 9 029 019 009 06S 086 0 6 096 06 4 05 066 15 pis 005 06 08 0 7 097 Ott 027 017 007 066 086 OLE 096 OGE OVE OEE OZE OLE 006 062 082 0 2 092 OGZ OZ OEZ 022 012 002 061 081 0 1 091 091 OEIL OZI 1 1 GLO TA TL IL M S desse Le E SS SS SS SS LE i anima mig En 13 maa A A Aae tert di rp e exp ap E TIE TTT oP eT 20 A
19. ce reducing the risk of combustion occurrence with the awareness that R32 is slightly flammable ESIE1T9 05 Therefore ensure that the following instructions are strictly observed when handling R32 and other HFCs R32 and other HFCs are heavier than air and therefore they are inclined to settle near the floor surface If the gas fills up the room or the bottom part of a room it may also cause oxygen deficiency and may reach its combustion concentration In order to prevent oxygen deficiency and R32 combustion keep the room well ventilated for a healthy work environment In particular using HFCs in a basement room or confined area creates a higher risk be sure to furnish the room with local exhaust ventilation If a refrigerant leak is confirmed in a room or an inadequately ventilated location do not use a flame until the area has been ventilated appropriately and the work environment has been improved Fresh air 100 UEL Fresh air LEL lt LEL The same applies in case of brazing ensure appropriate ventilation to prevent oxygen deficiency and R32 combustion Check that there are no dangerous or combustible items nearby and ensure a fire extinguisher is close at hand f the gas comes into contact with open flame or metal or other material heated to over 300 to 400 C it will cause thermal decomposition possibly producing toxic gas Do not allow the gas to come into contact with such objects Toxic ga
20. ceptacle with care Waste air is to be released into the atmosphere only via suitable separators Ensure good ventilation exhaustion at the workplace Information about fire and explosion protection Do not spray onto a naked flame or any incandescent material Keep ignition sources away Do not smoke Protect against electrostatic charges Use only in explosion protected area Use explosion proof apparatus fittings and spark proof tools GB LoIL12o Uo5 P DAIKIN Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 Conditions for safe storage including any incompatibilities Storage Requirements to be met by storerooms and receptacles Store in a cool location Store only in unopened original receptacles Information about storage in one common storage facility Store away from flammable substances Store away from oxidizing agents Further information about storage conditions Storage temperature max 40 C Keep container tightly sealed Do not seal receptacle gas tight Protect from heat and direct sunlight Store in a cool place Heat will increase pressure and may lead to the receptacle bursting Store only outside or in explosion proof rooms Specific end use s No further relevant information available SECTION 8 Exposure 5 protection Additional information about design of
21. e there is test data that indicates no flame propagation Source National Institute of Advanced Industrial Science and Technology AIST report H32 does not ignite with actual electrical parts ESIE19 05 By way of experiment the following shows how R32 acts when ignited and combusted when the conditions for flammability are met How R32 Burns Flame Propagation Burning speed Unit cm s When R32 is ignited When propane is ignited Even if R32 gets ignited the risk of pressure rise explosive force is low due to its slow flame propagation slow burning Change of Flame When There is R32 Leakage Before R32 leakage R32 leaking When leakage occurs an area of within combustion concentration forms immediately concentration range below the leaking part and up to a certain height above the floor in the vicinity of the leak The picture shows the change in the flames flame propagation Using lighters and burners commonly used at work the experiment shows an upward spread of flames but no flame propagation in the horizontal and downward directions When the naked pilot flames are extinguished the upward flame propagation disappears R32 combustion does not occur under normal usage conditions for air conditioning equipment or in a normal work environment However it is important to keep away ignition source open flame so as to prevent generating R32 combustion concentration conditions hen
22. e 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 Material of gloves Leather gloves The selection of the suitable gloves does not only depend on the material but also on further marks of quality and varies from manufacturer to manufacturer As the product is a preparation of several substances the resistance of the glove material can not be calculated in advance and has therefore to be checked prior to the application Penetration time of glove material The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed Eye protection Tightly sealed goggles Body protection Protective work clothing SECTION 9 Physical and chemical properties Information on basic physical and chemical properties General Information Appearance Form Liquefied gas Colour Colourless Odour Odourless Odour threshold Not determined pH value Not determined Change in condition Melting point Melting range Boiling point Boiling range Flash point Not applicable Flammability solid gaseous Highly flammable Decomposition temperature Not determined Self igniting 530 C 1018 hPa Danger of explosion Not determined Explosion limits Lower 13 8 Vol 96 Upper 29 9 Vol 96 Vapour pressure at 25 C 1701 kPa Density at 25 C 0 0021 g cm Solubility in Miscibility with water at 25 C 1680 mg l
23. edical attention and special treatment needed No further relevant information available SECTION 5 Firefighting measures Extinguishing media Suitable extinguishing agents CO2 powder or water spray Fight larger fires with water spray or alcohol resistant foam For safety reasons unsuitable extinguishing agents Water with full jet Special hazards arising from the substance or mixture Hydrogen fluoride HF Formation of toxic gases is possible during heating or in case of fire Advice for firefighters Protective equipment Do not inhale explosion gases or combustion gases Wear self contained respiratory protective device Wear fully protective suit SECTION 6 Accidental release measures Personal precautions protective equipment and emergency procedures Ensure adequate ventilation Keep people at a distance and stay on the windward side Wear protective equipment Keep unprotected persons away Environmental precautions Suppress gases fumes haze with water spray Do not allow to enter sewers surface or ground water Methods and material for containment and cleaning up Allow to evaporate Ensure adequate ventilation Reference to other sections See Section 8 for information on personal protection equipment See Section 13 for disposal information SECTION 7 Handling and storage Handling Precautions for safe handling Store in cool dry place in tightly closed receptacles Open and handle re
24. edure Conduct an air tightness test gas leak check 2 Troubleshooting lt Check items for service gt ESIE1T9 05 Relationship of operating state pressure and operating current of air conditioning system Indoor unit To dedicated breaker Measured from 15 20 minutes or more after operation starts for electric heater When cooling hat about voltage and current To dedicated y 8 When heating EE EE TUNE Air Filter Air Filter Fouling Lowe Lower Lowe e Short Circuit of Indoor Unit Transmission Inlet Outlet Air Lower Lower Lower wiring between Outdoor Unit Fin Fouling indoor and outdoor Short Circuit of Outdoor Unit units Inlet Outlet Air Higher Higher Higher hat about switch capacity Air Mixed in Refrigerant Higher Higher Higher hat about cable thickness Dirt Mixed Refrigerant piping Eeue Heeei MITT Air Filter Filter Fouling Higher Higher Short Circuit of Indoor Unit Outdoor unit Earth Short Circuit of Outdoor Unit Inlet Outlet Air Lower Lower Lower 1 Water in the refrigerant freezes inside the capillary tube or expansion valve and is basically the same phenomenon as pump down 2 Dirt in the refrigerant clogs filters inside the piping and is basically the same phenomenon as pump down 9 Pressure differential between high and low pressure becomes slight lt Refrigerant
25. erant Cylinders lllSpecifications of Refrigerant Cylinders Red shoulder flammable gas Left thread an adapter piece is required to connect manifold Minimum test pressure 48 bar Fill rate for recovery bottles for R32 is 60 Bi Handling of Refrigerant Cylinders Laws and Regulations As liquefied gas R32 is covered in the High Pressure Gas Safety Act Therefore refer to the High Pressure Gas Safety Act before use The High Pressure Gas Safety Act sets forth standards that must be followed to prevent disasters that may be caused by high pressure gases Handling of Vessels R32 being a high pressure gas is supplied in a pressure vessel The vessel itself is highly safe but handling it without proper care may damage the vessel which may result in unexpected accidents Take due care to protect pressure vessels from dropping being knocked down impacts and rolling Storage Likewise other high pressure gases R32 should be preserved and stored in accordance with the standards established by laws and regulations Cool dark place that is well ventilated with a temperature of 40 C or lower Implementation of fall prevention devices etc Caution for health and hygiene Refer to the MSDS on the back of this book Reference gt 19 99 5 Service Tools for R32 If Switching Over from R22 R32 has a higher pressure than R22 approx 1 6 times and the refrigerant oil used with R32 is ether
26. mental burden than R410A as well as good economic efficiency The adoption of R32 will not only contribute to environmental conservation owing to its low GWP but also offer air conditioning systems COP Coefficient of performance improvement and higher efficiency while reducing refrigerant charging amount due to the nature of the refrigerant In this manual we included information on the installation and maintenance of our air conditioning systems that use R32 as refrigerant We hope this manual will be a useful resource for you This manual is created based on information as of March 2015 and the content is subject to change ESIE1T9 05 Contents 1 Overview of R32 Using Systems 2 2 Properties of Refrigerants 4 Properties of Refrigerant Oils 8 4 Explanation of Refrigerant Cylinders 9 5 DEVIC TOOIS TOF T3938 serres waa xus biais cratis 10 6 R32 Unit Installation and Service 1 Three Basic Rules of Refrigerant Piping 12 2 Troubleshooting 13 3 Safety Precautions What If 14 lt Reference gt 1 Thermodynamic Properties of R32 16 2 Safety Data 18 ESIET2 5 05 1 Overview of R32 Using Systems There is no major difference in specifications between the R32 and
27. ng equipment and work environment Concentration Condition es amp Lower Concentration Limits 13 3 96 29 3 Kayak Japan 41 concentration If ignition energy is applied while in the gas concentration range between upper and lower limit R32 may burn However this gas concentration condition is a level at which oxygen deficiency can occur oxygen concentration of 1896 or below and thus is not an environment in which people generally work Ignition Energy Q Value for minimum energy with which the gas may ignite Min 30 100 With static electricity or electronic lighters energy From DuPont June 2010 several mJ minimum ignition AIChE article report energy is not attained Ref Propane May ignite even with static electricity lt Reference Static electricity energy gt R32 does not ignite with Static electricity static charge generated by energy mJ human contact Symptom of electric shock Prickling sensation Pain extending from palm 1 25 to forearm No possibility of ignition by spark in the machine or in the magnetic switch on a power panel Even if a spark exceeding the minimum ignition energy was generated in the magnetic switch with the actual electrical parts electromagnetic switch with cover there is no flame propagation in R32 no flame spreading If the distance between the electrodes and the wall is within 4 mm in an enclosed spac
28. nt between R22 and R32 R410A for 4 8 and 5 8 No change in tightening torque value Cylinder cap z Inner diameter of the part that connects to the hose is 5 16 flare thread Ifthe size supports R410A type it can also be used for R32 type Equipped with oil backflow prevention function In the case of using a vacuum pump without reverse flow preventive function use only after connecting it to a reverse flow preventive vacuum adapter Refrigerant recovery Supports R32 R410A pressure system i system supports R410A and has been certified for use with R32 it can also used with R32 Refrigerant recovery 5 For R32 R410A only the recovery cylinders with pressure resistance to 48 bar can be cylinder Nr used Keep in mind that the bottle might have left thread In that case an adapter piece is necessary Electric gas leak detector Can be used with R32 R410A and conventional refrigerants R22 etc Check what types of refrigerant the detector can be used with Detectors that can be used with R410A can also be used for R32 if approval from tooling manufacturer Even if a detector supports conventional refrigerants R22 etc it cannot be used for R32 and R410A if it does not support use with HFCs Torch type models cannot be used ESIE1T0 05 6 R32 Unit Installation and Service 1 Three basic rules of refrigerant piping Following the Three Basic Rules of Refrigerant Piping Preventive
29. oil instead of the SUNISO oil used with R22 If inappropriate oil is mixed with the refrigerant it might cause sludge and other problems therefore service tools used with R22 such as the gauge manifold and charge hose cannot be shared with R32 Always use dedicated tools for R32 If Switching Over from R410A Because R32 has approximately the same pressure as R410A the refrigerant oil is also ether oil and it can be accommodated with the same contamination control preventing impurity contamination as R410A without a large difference tools that are used with R410A can be shared with R32 after confirmation from tooling supplier Tool Compatibility Gauge manifold Sharable when temperatureisrecatculated Charge hose E Sharable EJ Weighing instrument 7 Pipe cutter Co Stare 00 rvacuumpump Refrigerant recovery system d umm Electric gas teak detector C wm 7 s R22 type can be used for R32 amp R410A by changing the work process 2 Dimension of width across flats of flare nut is different between R32 amp R410A and R22 4 8 and 5 8 only Other flare nuts can be shared 3 When using an R22 type for R32 amp R410A use with a reverse flow preventive adapter 4 HFC recovery systems can be shared if they have been certified by the manufacturers to be supporting the relevant HFCs 5 Even if a detector supports R22 if the detector does not support HFC R32 R4
30. pted quantities EQ Code E1 Maximum net quantity per inner packaging 30 ml Maximum net quantity per outer packaging 1000 ml UN Model Regulation UN3252 DIFLUOROMETHANE REFRIGERANT GAS R 32 2 SECTION 15 Regulatory information Safety health and environmental regulations legislation specific for the substance or mixture Labelling according to Regulation EC No 1272 2008 The substance is classified and labelled according to the CLP regulation Hazard pictograms GHS02 GHS04 Signal word Danger Hazard statements H220 Extremely flammable gas H280 Contains gas under pressure may explode if heated Precautionary statements P210 Keep away from heat sparks open flames hot surfaces No smoking POLT Leaking gas fire Do not extinguish unless leak can be stopped safely P381 Eliminate all ignition sources if safe to do so P410 P403 Protect from sunlight Store in a well ventilated place P403 Store in a well ventilated place P501 Dispose of contents container in accordance with local regional national international regulations Chemical safety assessment A Chemical Safety Assessment has been carried out SECTION 16 Other information This information is based on our present knowledge However this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship GB CoIE1 0 00 P DAIKIN Safety data sheet according to 190
31. rdous for water Do not allow undiluted product or large quantities of it to reach ground water water course or sewage system Results of PBT and vPvB assessment PBT Not PBT VPvB Not vPvB Other adverse effects No further relevant information available SECTION 13 Disposal considerations Waste treatment methods Recommendation Must be specially treated adhering to official regulations Can be reused after reprocessing Uncleaned packaging Recommendation Disposal must be made according to official regulations SECTION 14 Transport information UN Number ADR IMDG IATA UN3252 UN proper shipping name ADR 3252 DIFLUOROMETHANE REFRIGERANT GAS R 32 IMDG IATA DIFLUOROMETHANE REFRIGERANT GAS R 32 Transport hazard class es ADR Class 2 2F Gases IMDG IATA Class 2 Gases Packing group ADR IMDG IATA GB CIE 0 Uo P DAIKIN Safety data sheet according to 1907 2006 EC Article 31 Printing date 06 01 2015 Version number 1 Revision 06 01 2015 Trade name HFC 32 Environmental hazards Marine pollutant No Special precautions for user Warning Gases Transport in bulk according to Annex Il of MARPOL73 78 and the IBC Code Not applicable Transport Additional information ADR Limited quantities LQ 0 Excepted quantities EQ Code EO Not permitted as Excepted Quantity Transport category 2 Tunnel restriction code B D IMDG Exce
32. s generation is the same with R410A R22 etc and not limited to R32 Keep a sufficient distance away from causes of fire ignition sources such as gas burning equipment and electric heaters in places where installation repairs or similar work on air conditioning equipment is performed ESIET2 5 05 3 Properties of Refrigerant Oils R32 lacks compatibility with mineral oil SUNISO and reduces oil return performance so to ensure compatibility ether oil a synthetic oil has been selected as the refrigerant oil for R32 units Ether oil is thus used as the refrigerant oil for both R32 and R410A units but product names are different as indicated in the table below Synthetic oil Synthetic oil Unit Manufacturer FW68DA FVC68D SUNISO 4GS Idemitsu Kosan FVC50K Japan Sun Oil Idemitsu Kosan Company Applicable refrigerant Daikin products lI Contamination Control Preventing Impurity Contamination Contamination control preventing impurity contamination for R32 refrigerant oil ether oil is the same as R410A Reuse of existing piping in R32 room air conditioners is the same as R410A room air conditioners and reuse of existing piping is possible with the same method For details check the catalogs and specifications for the products When the inside of the existing piping is extremely dirty you must clean the pipes or replace the dirty pipes with new ones E5IET1 5 U05 4 Explanation of Refrig
33. t conforms to the applicable standards and is suitable for use in the region where the product will be used This statement does not purport to exclude restrict or modify the application of any local legislation e Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion e Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion e Read the User s Manual carefully before using this product The User s Manual provides important safety instructions and warnings Be sure to follow these instructions and warnings If you have any enquiries please contact your local importer distributor and or retailer Dealer Daikin Europe NV Zandvoordestraat 300 8400 Oostende Belgium Specifications desians and other content appearina in this brochure are current as of March 2015 but subiect to change without notice
34. technical facilities No further data see item 7 Control parameters Ingredients with limit values that require monitoring at the workplace Not required DNELs Inhalative DNEL general population 750 mg m long term exposure systemic effects wanar 7038 maim exposure 00000 PNEC 0 142 mg l freshwater aqua 0 534 mg kg dw freshwater sediment 1 42 mg l intermittent release aqua Additional information The lists valid during the making were used as basis Exposure controls Personal protective equipment General protective and hygienic measures Wash hands before breaks and at the end of work Keep away from foodstuffs beverages and feed Do not inhale gases fumes aerosols Avoid skin contact with the liquefied material Keep away from tobacco products Respiratory protection Use suitable respiratory protective device in case of insufficient ventilation Protection of hands Protective gloves The glove material has to be impermeable and resistant to the product the substance the preparation Due to missing tests no recommendation to the glove material can be given for the product the preparation the chemical mixture Selection of the glove material on consideration of the penetration times rates of diffusion and the degradation GB CoIE1 0 00 P DAIKIN Safety data sheet according to 1907 2006 EC Article 31 Printing dat

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