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INSTALLATION MANUAL
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1. Vertical height difference Monsi One way piping length between indoor and outdoor 24K 28K 36K less than 30 m less than 20 m 48K 60K less than 50 m less than 30 m Precautions for refrigerant piping Spanner e Do not twist or crush piping e Be sure that no dust is mixed in piping e Bend piping with as wide angle as possible Joint Keep insulating both gas and liquid piping e Check flare connected area for gas leakage Spanner 2 Nut 4 Piping connection method e Apply refrigerant oil to the joint and the flange Pipe diameter Fastening torgue N m To bend a pipe give the roundness as possible not to crush the pipe Liquid pipe gt 6 35mm 14 2 17 2 e When connecting pipe hold the pipe centre to centre and then Liquid pipe 9 52mm 32 7 39 9 screw nut on by hand refer to Fig 612 7 5 60 e Be careful not to let foreign matters such as sands enter Gas pipe 7 5007 Gas pipe 219 05mm 97 2 118 6 Forced fastening without centering may damage the threads and cause a gas leakage 5 For the allowable pipe length and height difference for maxi split system please see the table in the page 2 of this manual 13 Installation Procedure Air Tightness Test After finishing connection of refrigerant pipe it shall perform air tightness test e The air tightness test adopts nitrogen tank to give pressure according to the pipe connection mode as the following figure shown e The gas and liguid valve are
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3. 6 35 1 4 17 0 17 0 9 52 3 8 22 0 22 0 N J 012 7 1 2 26 0 24 0 15 88 5 8 29 0 27 0 Dimension E 19 05 3 4 36 0 36 0 The table shows the standards in Japan Using this table as a reference choose pipes that meet the local standards Read Before Installation Air Tightness Test No changes from the conventional method Note that a refrigerant leakage detector for R22 or R407C cannot detect R410A leakage N Halide torch R22 or R407C leakage detector Items to be strictly observed 1 Pressurize the equipment with nitrogen up to the design pressure and then judge the equipment s air tightness taking temperature variations into account 2 When investigating leakage locations using a refrigerant be sure to use R410A 3 Ensure that R410A is in a liquid state when charging Reasons Use of oxygen as the pressurized gas may cause an explosion harging with R410A gas will lead the composition of the remaining refrigerant in the cylinder to change and then this refrigerant can not be used Vacuuming 1 Vacuum pump with check valve A vacuum pump with a check valve is reguired to prevent the vacuum pump oil from flowing back into the refrigerant circuit when the vacuum pump power is turned off power failure It is also possible to attach a check valve to the actual vacuum pump afterwards 2 Standard degree of vacuum for the vacuum pump Use a pump which reaches 65Pa or below after 5 minute
4. Radial Thickness mm Type 6 35 1 4 0 8t db 9 52 3 8 0 8t Type O pipes 12 7 1 2 0 8t 15 88 5 8 1 0t 19 05 3 4 1 0t Type 1 2H or Hpipes e Although it was possible to use type O for pipes with a size of up to 19 05 3 4 with conventional refrigerants use type 1 2H pipes for units that use R410A Type O pipes may be used if the pipe size is 19 05 and the radial thickness is 1 21 The table shows the standards in Japan Using this table as a reference choose pipes that meet the local standards Flare Machining type O and OL only The flare machining dimensions for units that use R410A is larger than those for units that use R22 in order to increase air tightness Flare Machining Dimension mm Dimension A External dimension of pipes Size R410A R22 lt 6 35 1 4 9 1 9 0 5 9 52 3 8 13 2 13 0 S 12 7 1 2 16 6 16 2 15 88 5 8 19 7 19 4 19 05 3 4 24 0 23 3 If a clutch type flare tool is used to machine flares on units that use R410A make the protruding part of the pipe between 1 0 and 1 5mm Copper pipe gauge for adjusting the length of pipe protrusion is useful Flare Nut Type 2 flare nuts instead of type 1 nuts are used to increase the strength The size of some of the flare nuts have also been changed Flare nut dimension mm Dimension External dimension of pipes Size R410A Type2 R22 Type1
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6. Recovery of refrigerant May be used if designed for use with R410A 3 Tools and materials that are used with R22 or R407C that can also be used with R410A Tools Materials Use Notes Vacuum Pump with a Check Valve Vacuum drying Bender Bending pipes Torque Wrench Tightening flare nuts Only 12 70 1 2 and 15 88 5 8 have a larger flare machining dimension Pipe Cutter Cutting pipes Welder and Nitrogen Cylinder Welding pipes Refrigerant Charging Meter Refrigerant charging Vacuum Gauze Checking vacuum degree 4 Tool and materials that must not used with R410A Tools Materials Use Notes Charging Cylinder Refrigerant Charging Must not be used with R410 type units Tools for R410A must be handled with special care and keep moisture and dust from entering the cycle Read Before Installation Piping Materials Types of Copper Pipes Reference Maximum Operation Pressure Applicable Refrigerants 3 4MPa R22 R407C 4 15MPa R410A Use pipes that meet the local standards Piping Materials Radial Thickness Use pipes made of phosphorus deoxidized copper Since the operation pressure of the units that use R410A is higher than that of the units for use with R22 use pipes with at least the radial thickness specified in the chart below Pipes with a radial thickness of 0 7mm or less may not be used Size mm Size inch
7. for the concrete foundation to fix by anchor bolts e Place the concrete foundation deep enough e Install the unit so that the angle of inclination must be less than 3 degrees a Concrete foundation b Foundation anchor it Unit Anchor bolt Concrete foundation Concrete foundation To fix by bolts Anchor bolt 11 Instal lation Proced ure Installation of Outdoor Unit 3 Installation dimension Unit mm 24K 28K 36K 948 860 730 633 48K R X 48K S X 48K S Y 60K 948 1008 I 1250 180 180 l 12 Installation Procedure Piping Connection 1 Piping diagram for single split 24K 28K 36K 48K 60K Flare connection 3 way stop valve Gas pipe Indoor 9996 Outdoor unit a ok unit 7 Er 3 vvay stop valve 2 Piping size for single split x Liquid pipe 9 52x0 8mm 24K 28K 36K Gas pipe 15 88x1 0mm Liquid pipe 9 52x0 8mm e Install the removed flare nuts to the pipes to be connected then flare the pipes Gas pipe 19 05x1 0mm 3 Limitations for one vvay piping length and vertical height difference for single split
8. refrigerant leaks additional refrigerant may be charged Add the refrigerant from the liquid side Characteristics of the Conventional and the New Refrigerants Because R410A is a simulated azeotropic refrigerant it can be handled in almost the same mammer as a single refrigerant such as R22 Howerver if the refrigerant is removed in the vapor phase the composition of the refrigerant in the cylinder will somewhat change Remove the refrigerant in the liquid phase Additional refrigerant may be added in case of a refrigerant leak 9 Name of Parts 24K Air inlet Air outlet Compressor Inside of unit 48K R X 48K S X o Air inlet 7 x Air outlet Compressor Inside of unit 10 28K 36K Air inlet Es Air outlet Compressor Inside of unit 48K S Y 60K Air inlet Air outlet Compressor Inside of unit Instal lation Proced ure Installation of Outdoor Unit 1 Selection of the place of installation Select the place of installation satisfying the following conditions and at the same time obtain a consent from the client or user Place where air circulates e Place free from heat radiatio
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10. 10 06 35 Outdoor unit TYPE 36K 1 15 09 52 12 5 06 35 Note 1 L 15 lt 20 L P L L1 L2 15 10 5 30 gt 20 2 Refrigerant charging amount L P 20 30 300g 3 TYPE 18K means capacity 18000Btu h type Example2 Indoor unit L1 10 6 35 TYPE 12K L1 10 6 35 Outdoor unit 30 09 52 L1 5 06 3 TYPE 12K 35 TYPE 48K TYPE 12K L1 5 2635 PE 12K Note 1 L 30 gt 20 P L1 L2 L3 L4 10 10 5 5 30 2 Refrigerant charging amount L 20 45 P 30 1350g 8 TYPE 12K means capacity 12000Btu h type e Only in COOLING operation can charge the additional refrigerant e When charging the refrigerant shall be charged from the charging nozzle of low pressure valve e Be carefull when charging refrigerant do not let the air mix into the system and must charge the additional refrigerant in liguid state Installation Procedure Piping vavuum method to use vacuum pump 1 Detach the service port s cap of gas stop valve the valve rod s cap for liguid stop valve and gas stop valve and connect the service port into the projection of charge hose low for gaugemanifold Then connect the projection of charge hose center for gaugemanifold into vacuum pump 2 Open the handle at low in gaugemanifold and operate vacuum pump If the scale moves of gause low reach vacuum condition in a moment check the step 1 again 3 Vacuumi
11. 8K R Y 60K the type is T6 3A 250VAC The wiring method should be in line with the local wiring standard The power cable and connecting cable should be self provided All the cables shall have got the European authentication certificate During installation when the connecting cables break off it must be assured that the grouding wire is the last one to be broken off The breaker of the air conditioner should be all pole switch and the distance between its two contacts should not be no less than 3mm Such means for disconnection must be incorporation in the fixed wiring The distance between its two terminal blocks of indoor unit and outdoor unit should not be over 5m If exceeded the e diameter of the wire should be enlarged according to the local wiring standard A leakage breaker must be installed e The specification of power cable For models 24K 28K 36K 48K R X the power cable should be HOSRN F 3G 6 0mm For models 48K S Y 60K the power cable should be HO7RN F 5G 4 0mm Wiring procedure 1 Remove set screws on the side before taking off the front panel toward the direction 2 Connect wires to the terminal block correctly and fix the wires with a wire clamp equipped nearby the terminal block 3 Route the wires in a proper way and penetrate the wires through the opening for electrical wiring on the side panel 16 Installation Procedure Electrical Wiring WARNING INTERCONNECTING WIRES MUST BE WIRED ACCORDING TO FI
12. GURE BELOW INCORRECT WIRING MAY CAUSE EOUIPMENT DAMAGE SINGLE SPLIT SYSTEM UNITS WIRING DIGRAM Indoor unit terminal block Indoor unit terminal block a l s YN YL 660363 2 126 m Outdoor unit rr r Outdoor unit K 4 i terminal block R S T N D x Outdoor unit terminal block x FFFA v Y Y x Power supply 380 400V 3N 50Hz Y dd Ed ay Iwao See Ye O CH y o a dn n OU E terminal block 3N 50Hz eee 50Hz 380 400V 220 230V i ERB TYPE ERA TYPE i terminal block asir Indoor unit 1 I Note 5257 1 The master is the indoor unit which connect to a wired terminal block sha controller others are slaves please purchase vvired controller ndoor unit 2 separately for MAXI system 200000 2 For one MAXI split system there is only one master 3 For the MAXI system vvith 2 or 3 indoor units the vviring ba l terminal block slave Indoor unit 3 method is the same with the diagram on the left except for 2712212252 000 the indoor units quantity terminal block 4 Make sure that the vvire connection for all units in MAXI slave ndoor unit 4 i system OK before running a A a En Sa re ee Installation Procedure test tun CAUTION THIS UNIT WILL BE STARTED INSTANTLY WITHOUT ON OPERATION WHEN ELECTRIC POWER IS SUPPLIED BE SURE TO EXECUTE OFF OPERATION BEFORE ELECTRIC POWER IS DISCONNECTED FO
13. INSTALLATION MANUAL 4 YORK BY JOHNSON CONTROLS Outdoor Inverter R410a 50 60HZ YHUJYH 024 060 BAR S XA X Y Read this manual before installation and operation Make sure that it is well kept for later reference Johnson 0150512349 Controls Contents Safety Precautions Read Before Installation Name of Parts nstallation Procedure Troubleshooting EUROPEAN REGULATIONS CONFORMITY FOR THE MODELS CE All the products are in conformity with the following European provision Low Voltage Directive 73 23 EEC Low Voltage Directive 2006 95 EC Electomagnetic CompatibilitY 89 336 EEC Electomagnetic CompatibilitY 2004 108 EC ROHS The products are fulfilled with the reguirements in the directive 2002 95 EEC of the European parliament and of council on the Restriction of the use of Certain Hazardous Substances in Electrical and Electronic Eguipment EU RoHS Directive WEEE In accordance with the directive 2002 96 CE of the European parliament herewith we inform the consumer about the dis posal reguirements of the electrical and electronic products DISPOSAL REGUIREMENTS Your air conditioning product is marked with this symbol This means that electrical and electronic products shall not be mixed with unsorted household waste Do not try to dismantle the system yourself the dismantling of the air conditioning system treatment of the refrigerant of oil and of other part must be d
14. R SERVICING This unit has a function of automatic restart system after recovering power stoppage 1 Before starting test run for all Heat pump models Confirm whether the power source breaker main switch of the unit has been turned on for over 12 hrs to energize the crankcase heater in advance of operation 2 Test run Run the unit continuously for about 30 minutes and check the following Suction pressure at check joint of service valve for gas pipe e Discharge pressure at check joint on the compressor discharge pipe e Temperature difference between return air and supply air for indoor unit 17 ing 24K 28K 36K 48K R X 48K S X 48K S Y 60K Troubleshoot Inueuu yun Joopul o 19J 1 eseejd WUYUOD o POUJSLU v oo epoo uononjieuu eu sejoipul osje UD jun JOOPU Jo epoo uononjjeu JO s uun Usej y L E si epoo Uopounjjeu eu s uun yse 1447 e duiexe Jo apoo uononjjeu eu seyeoipul 1447 n23 pJeoguieu Jo saw usej SUL e oN s uun 40 spuooes o 40 eeiep 99 JOAO SI WL 11 40 einjiey SIU uuuuoo NOY ul saw sinooo ejgeuinseJ uoN 1111 suMeje SpUo2es0 40 pejpeuuooun pejoejep 51 YOIMs JI sejnulu JO Buluuni Josseuduioo Jayy euuiouge uols eJnsseud uBiH wee OU HALI Jaye s nuiuu 9 10 Bunsouj p ul jng einjieg eu uuyuoo nou ul s uun SUND9O JI eunjiey siU WUYUOS nou ul s uun sino5o ojgeuinseui uoN 1111
15. all in close state In order to prevent the nitrogen entering the circulation system of outdoor unit tighten the valve rod before giving pressure both gas and liguid valve rods Low pressure piezometer High pressure piezometer stop valve totally closed Indoor Outdoor Gas side Completely tightened z Flare part Completely tightened Flare part a Dropping valve Nitrogen tank Indoor units Outdoor units stop valve totally closed Liquid side 1 Pressurize for over 3 minutes at 0 3MPa 3 0 kg cm g N 2 Pressurize for over 3 minutes at 1 5MPa 15 kg cm g A large leakage will be found 2 Sweat joint 3 Pressurize for about 24 hours at 3 0MPa 30 kg cm g A small mn leakage will be found Large slip on connector Check if the pressure drops KN Ifthe pressure does not drop then pass Ifthe pressure drops then please check the leaking point When pressurizing for 24 hours a variation of 1 C in the ambient temperature will cause a variation of 0 01MPa 0 1 kg cm g in pressure t shall be corrected during test Checking the leaking point In 1 to 3 steps if the pressure drops check the leakage in each joint by listening touching and using soap water etc to identify the leaking point After confirming the leaking point welding it again or tighten the nut tightly again Cylinder of nitrogern I
16. carefully follow each step in this handbook when installing the unit Improper installation may result in water leak electric shock smoke or fire e Have all electrical work performed by a licensed electrician according to the local regulations and the instructions given in this manual Secure a circuit designated exclusively to the unit Improper installation or a lack of circuit capacity may cause the unit to malfunction or present a risk of electric shock smoke and fire Securely attach the terminal cover panel on the unit If installed improperly dust and or water may enter the unit and present a risk of electric shock smoke or fire e Only use refrigerant R410A as indicated on the unit when installing or relocating the unit The use of any other refrigerant or an introduction of air into the unit circuit may cause the unit to run an abnormal cycle and abnormal cycle and cause the unit to burst A WARNING e Do not touch the fins on the heat exchanger with bare hands for they are sharp and dangerous e n the event of a refrigerant gas leak provide adequate ventilation to the room If leaked refrigerant gas is exposed to a heat source noxious gases may form e With All Fresh type air conditioners outdoor air may be directly blown into the room upon thermo off Take this into consideration when installing the unit Direct exposure to outdoor air may present a health hazard and it may also cause food items
17. ch may harm human beings handling method In such case to continue using the conditioner will damage the conditioner and may cause electrical shock or fire hazard e When need maintenance and repairment call dealer to handle it Incorrect maintenance and repairment may cause water leak electrical shock e After a long time use of air conditioner and fire hazard the base should be checked for any damages If the damaged base is not repaired the unit may fall down and cause accidents A WARNING No goods or nobody is permitted to Air conditioner can t be installed in the environment with placed on or stand on outdoor unit The inflammable gases because the inflammable gases near falling of goods and people may cause SRC air conditioner may cause fire hazard accidents oun Please let the dealer be responsible for installing the conditioner Incorrect installation may cause water leak electrical shock and fire hazard e Don t operate the air conditioner with damp hands Otherwise it will be shocked Call the dealer to take measures to prevent the refrigerant from leaking If conditioner is installed in a small room be sure to take every measure in order to prevent suffocation accident even in case of refrigerant leakage Only use correctly typed fuse May not use wire or any other materials replacing fuse otherwise it may cause faults or fire accidents When conditioner is in
18. harge the liquid refrigerant into air conditioner according to the amount marked on the nameplate 15 Installation Procedure Electrical Wiring WARNING DANGER OF BODILY INJURY OR DEATH TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS Precautions for Electrical wiring Electrical wiring work should be conducted only by authorized personnel e Do not connect more than three wires to the terminal block Always use round type crimped terminal lugs with insulated grip on the ends of the wires e Use copper conductor only Selection of size of power supply and interconnecting wires Select wire sizes and circuit protection from table below This table shows 20 m length wires with less than 2 voltage drop Circuit breaker Power source Earth leakage breaker Switch breaker Overcurrent protector minimum Switch Leak A rated capacity A breaker A current mA 24K 28K 1 40 30 6 0 40 30 36K 48K R X GR EN 3 2 4 0 0 48K S Y 30 0 3 30 60K If the supply cord is damaged it must be replaced by the manufacturer or itsservice agent or a similar qualified person If the fuse of control box is broken please change it with the type of T25A 450VAC If the fuse of control PC board is broken please change it with the type of T3 15A 250VAC But for 24K 28K 36K 48K R X 4
19. he existing refrigerant piping e The old refrigerant and refrigerator oil in the existing piping contain a large amount of chlorine which will cause the refrigerator oil in the new unit to deteriorate e R410A is a high pressure refrigerant and the use of the existing piping may result in bursting Keep the inner and outer surfaces of the pipes clean and free of contaminants such as sulfur oxides dust dirt shaving particles oils and moisture Contaminants inside the refrigerant piping will cause the refrigerant oil to deteriorate Use a vacuum pump with a reverse flow check valve e If other types of valves are used the vacuum pump oil will flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate Do not use the following tools that have been used with the conventional refrigerants Prepare tools that are for exclusive use with R410A Gauge manifold charging hose gas leak detector reverse flow check valve refrigerant charge base vacuum gauge and refrigerant recovery equipment e If refrigerant and or refrigerant oil left on these tools are mixed in with R410 or if water is mixed with R410A it will cause the refrigerant to deteriorate e Since R410A does not contain chlorine gas leak detectors for conventional refrigerators will not work A Caution Store the piping to be used during installation indoors and keep both ends of the piping sealed until immediately before braz
20. ing keep elbows and other joints wrapped in plastic e f dust dirt or water enters the refrigerant cycle it may cause the oil in the unit to deteriorate or may cause the compressor to malfunction Use a small amount of ester oil ether oil or alkylbenzene to coat flares and flange connections e A large amount of mineral oil will cause the refrigerating machine oil to deteriorate Use liquid refrigerant to charge the system Charge the unit with gas refrigerant will cause the refrigerant in the cylinder to change its composition and will lead to a drop in performance Do not use a charging cylinder The use of charging cylinder will change the composition of the refrigerant and lead to power loss Exercise special care when handling the tools e An introduction of foreign objects such as dust dirt or water into the refrigerant cycle will cause the refrigerating machine oil to deteriorate Only use R410A refrigerant The use of refrigerants containing chlorine i e R22 will cause the refrigerant to deteriorate Before Installing the Unit N Caution Do not install the unit in a place where there is a possibility of flammable gas leak eLeaked gas accumulated around the unit may start a fire Do not use the unit to preserve food animals plants artifacts or for other special purposes e The unit is not designed to provide adepuate conditions to preserve the quality of these items Do n
21. n e f the wires are too taut they may break or generate heat and or smoke and cause fire Install a breaker for current leakage at the power source to avoid the risk of electric shock Without a breaker for current leakage there is a risk of electric shock smoke or fire Use breakers and fuses electrical current breaker remote switch lt switch Type B fuse gt molded case circuit breaker with a proper current capacity e The use of large capacity fuses steel wire or copper wire may damage the unit or cause smoke or fire Do not spray water on the air conditioners or immerse the air conditioners in water e Water on the unit presents a risk of electric shock Periodically check the platform on which is placed for damage to prevent the unit from falling e If the unit is left on a damaged plarform it may topple over causing injury When installing draining pipes follow the instructions in the manual and make sure that they properly drain water so as to avoid dew condensation e If not installed properly they may cause water leaks and damage the furnishings Properly dispose of the packing materials e Things such as nails may be included in the package Dispose of them properly to prevent injury e Plastic bags present a choking hazard to children Tear up the plastic bags before disposing of them to prevent accidents Before the Test Run N Caution Do not operate switches with wet hands t
22. n from other heat sources Place where drain water may be discharged Place where noise and hot air may not disturb the neighborhood Place where there is not heavy snowfall in the winter time Place where obstacles do not exist near the air inlet and air outlet e Place where the air outlet may not be exposed to a strong wind Place surrounded at four sides are not suitable for installation A 1m or more of overhead space is needed for the unit Avoid mounting guide louvers to the place where short circuit is a possibility When installing several units secure sufficient suction space to avoid short circuiting Open space requirement around the unit Distance Case Casell Case Ill L1 open open 500 mm 2500 L2 300mm 300 mm open L3 150 mm 300mm 150 mm oa Note 1 1 the parts with screws s 077 2 Don t intake the strong wind directly to the outlet air flow hole 3 A one meter distance should be kept from the unit top 4 Don t block the surroundings of the unit with sundries 5 If the outdoor unit is installed in a place that is exposed to the wind install the unit so that the outlet grid is NOT pointing in the direction of the wind Wind direction 2 Installation of outdoor unit Fix the unit on the foundation in a proper way according to the condition of the installation place referring to the following information e Give enough room
23. nstallation Procedure Additional Refrigerant Charge Specification of refrigerant charge for single split and maxi split 1 It is not neccesary to charge additionally when the piping length L P 20m 2 Please charge refrigerant additionally according to the following table when the piping length L P gt 20m or need to complete recharge Single Split Twin Triple Quadruple L1 L1 L1 L L gt gt IR L3 L L3 1 s f 4 Charge g L gt 20 L lt 20 L P gt 20 L gt 20 L lt 20 L P gt 20 L gt 20 L lt 20 L P gt 20 L gt 20 1U36 L 20 45 L P 20 30 L 20 45 P 30 L 20 45 P 30 L 20 45 P 30 1U48 L 20 45 L P 20 45 L P 20 45 L P 20 30 L 20 45 P 30 L P 20 30 L 20 45 P 30 1U60 L 20 45 L P 20 45 P 20 45 L P 20 30 L 20 45 P 30 L P 20 30 L 20 45 P 30 P m P 0 P L1 L2 P L1 L2 L3 P L1 L2 L3 L4 Remark a L is the main pipe length of liquid pipe P is the sum length of branch liquid pipes b The piping length L P means the sum of the main pipe and branch pipes For MAXI system Twin Triple Quadruple piping length L P L For single split system L P L because P 0 14 Installation Procedure Additional Refrigerant Charge E le1 Indoor unit L1
24. o avoid electric Do not touch the refrigerant pipes with bare hands during and immediately after operation e Depending on the state of the refrigerant in the system certain parts of the unit such as the pipes and compressor may become very cold or hot and may subject the person to frost bites or burning Do not operated the unit without panels and safety guards in their proper places e They are there to keep the users from injury from accidentally touching rotating high tempreture or high voltage parts Do not turn off the power immediately after stopping the unit e Allow for at least five minutes before turning off the unit otherwise the unit may leak water or experience other problems Do not operate the unit without air filters e Dust particles in the air may clog the system and cause malfunction Read Before Installation Items to Be Checked 1 Verify the type of refrigerant used by the unit to be serviced Refrigerant Type R410A 2 Check the symptom exhibited by the unit to be serviced Look in this service handbook for symptoms relating to the refrigerant cycle 3 Be sure to carefully read the safety precautions at the beginning of this document 4 If there is a gas leak or if the remaining refrigerant is exposed to an open flame a noxious gas hydrofluoric acid may form Keep workplace well ventilated CAUTION e Install new pipes immediately after removing old ones to keep moist
25. one by a gualified installer in accordance with relevant local and national legislation Air conditioners must be treated at a specialized treatment facility for reuse recycling and recovery By ensuring this product is disposed of correctly you will help to prevent potential negative cons eguences for the environment and humen health Please contact the installer or local authority for more information Battery must be removed from the remote controller and dis posed of separately in accordance with relevant local and nationl legislation IMPORTANT INFORMATION REGA RDING THE REFRIGERANT USED Contains fluorinated greenhouse gases covered by the Kyoto Protocol This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not vent into the atmosphere Refrigerant type R410A GWP value 1975 GVVPeglobal warming potential Please fill in with indelible ink 1 the factory refrigerant charge of the product 2 additional refrigerant amount charged in the field and 172 the total refrigerant charge on the refrigerant charge label supplied with the product The filled out label must be adhered in the proximity of the product charging port e g onto the inside of the stop value cover A contains fluorinated greenhouse gases covered by the Kyoto Protocol B factory refrigerant charge of the product see unit name plate additional refrigerant amount charged in the field t
26. ot use the unit in an unusual environment e The use of the unit in the presence of a large amount of oil steam acid alkaline solvents or special types of sprays may lead to a remarkable drop in performance and or malfunction and presents a risk of electric shock smoke or fire e The presence of organic solvents corroded gas such as ammonia sulfur compounds and acid may cause gas or water leak When installing the unit in a hospital take necessary measures against noise e High frequency medical equipment may interfere with the normal operation of the air conditioning unit or the air conditioning unit may interfere with the normal operation of the medical eguipment Do not place the unit on or over things that may not get wet e When humidity level exceeds 80 or when the drainage system is clogged indoor units may drip water e Installation of a centralized drainage system for the outdoor unit may also need to be considered to prevent water drips from the outdoor units Safety Precautions Before Installing Relocating the Unit or Performing Electric Work N Caution Ground the unit e Do not connect the grounding on the unit to gas pipes water pipes lightning rods or the grounding terminals of telephones Improper grounding presents a risk of electric shock smoke fire or the noise caused by improper grounding may cause the unit to malfunction Make sure the wires are not subject to tensio
27. otal refrigerant charge outdoor unit refrigerant cylinder and manifold for charging mmoo Safety Precautions Carefully read the following information in order to operate the air conditioner correctly Below are listed three kinds of Safety Precautions and Suggestions N WARNING Incorrect operations may result in severe consequences of death or serious injuries A CAUTION Incorrect operations may result in injuries or machine damages in some cases may cause serious consequences INSTRUCTIONS These information can ensure the correct operation of the machine Symbols used in the illustrations Indicates an action that must be avoided ndicates that important instructions must be followed Indicates a part which must be grounded Beware of electric shock This symbol is displayed on the main unit label After reading this handbook hand it over to those who will be using the unit The user of the unit should keep this mamual at hand and make it available to those who will be performing repairs or relocating the unit Also make it available to the new user when the user changes hands Be sure to conform with the following important Safety Precautions A WARNING If any abnormal phenomena is found Ti Don t dismantle the outlet of the e g smell of firing please cut off 2 outdoor unit the power supply immediately and a The exposure of fan is very dangerous contact the dealer to find out the whi
28. s of operation In addition be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil If the vacuum pump is not properly maintained the degree of vacuum may be too low 3 Reguired accuracy of the vacuum gauge Use a vacuum gauge that can measure up to 650Pa Do not use a general gauge manifold since it cannot measure a vacuum of 650Pa 4 Evacuating time Evacuate the eguipment for 1 hour after 650Pa has been reached After envacuating leave the equipment for 1 hour and make sure the that vacuum is not lost 5 Operating procedure vvhen the vacuum pump is stopped n order to prevent a backflovv of the vacuum pump oll open the relief valve on the vacuum pump side or loosen the charge hose to drawn in air before stopping operation The same operating procedure should be used when using a vacuum pump with a check valve Charging Refrigerant R410A must be in a liguid state when charging Reasons R410A is a pseudo azeotropic refrigerant boiling point R32 52 C R125 49 C and can roughly be handled in the same way as R22 however be sure to fill the refrigerant from the liguid side for doing so from the gas side will somewhat change the composition of the refrigerant in the cylinder Note In the case of a cylinder with a syphon liquid R410A is charged without turning the cylinder up side down Check the type of cylinder before charging Remedies to be taken in case of a refrigerant leak When
29. stalled or reinstalled the dealer should be responsible for them Incorrect installation may cause water leaking electrical Use discharge pipe correctly to ensure efficient discharge shock and fire hazard Incorrect pipe use may cause water leaking Connect earthing wire o Earthing vvire should not be connected to the gas Installed electrical leaking circuit breaker pipe vvater pipe lightning rod or phone line Earthing It easily cause electrical shock without circuit breaker incorrect earthing may cause shock Safety Precautions A WARNING e Have the unit professionally installed Improper installation by an ungualified person may result in water leak electric shock or fire Place the unit on a stable level surface that withstands the weight of the unit to prevent the unit from tipping over or falling causing injury as a result Only use specified cables for wiring Securely connect each cable and make sure that the cables are not straining the terminals Cables not connected securely and properly may generate heat and cause fire e Take necessary safety measures against typhoons and earthguakes to prevent the unit from falling over Do not make any changes or modifications to the unit In case of problems consult the dealer If repairs are not made properly the unit may leak water and present a risk of electric shock or it may produce smoke or cause fire Be sure to
30. to deteriorate e Do not try to defeat the safety features of the devices and do not change the settings Defeating the safety features on the unit such as the pressure switch and temperature switch or using parts other than the dealer or specialist may result in fire or explosion This appliance is not intended for use by persons including children with reducedphysical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety eWhen installing the unit in a small room safeguard against hypoxia that results from leaked refrigerant reaching the threshold level Consult the dealer for necessary measures to take eWhen relocating the air conditioner consult the dealer or a specialist Improper installation may result in water leak electric shock or fire e After completing the service work check for a refrigerant gas leak If leaked gas refrigerant is exposed to a heat source such as fan heater stove and electric grill noxious gases may form e Only use specified parts Have the unit professionally installed Improper installation may cause water leak electric shock smoke or fire e Children should be supervised to ensure that they do not play with the appliance Safety Precautions Precautions for Handling Units for Use with R410A N Caution Do not use t
31. ure out of the refrigerant circuit e Chloride in some types of refrigerants such as R22 will cause the refrigerating machine oil to deteriorate Necessary Tools and Materials Prepare the following tools and materials necessary for installing and servicing the unit Necessary tools for use with R410A Adaptability of tools that are for use with R22 and R407C 1 To be used exclusively with R410A Not to be used if used with R22 or R407C Tools Materials Use Notes Gauge Manifold Evacuating refrigerant charging 5 09MPa on the High pressure side Charging Hose Evacuating refrigerant charging Hose diameter larger than the concentional ones Refrigerant Recovery Eguipment Refrigerant recovery Refrigerant Cylinder Refrigerant charging Write down the refrigerant type Pink in color at the top of the cylinder Refrigerant Cylinder Charging Port Refrigerant charging Hose diameter larger than the conventional ones Flare Nut Connecting the unit to piping Use Type 2 Flare nuts 2 Tools and materials that may be used with R410 with some restrictions Tools Materials Use Notes Gas leak detector Detection of gas leaks The ones for HFC type refrigerant may be used Vacuum Pump Vacuum drying May be used if a reverse flow check adaptor is attached Flare Tool Flare machining of piping Chages have been made in the flare machining dimension Refer to the next page Refrigerant Recovery Equipment
32. ze for over 15min And check the level gauge which should read 0 1MPa 76 cm Hg at low pressure side After the completion of vacuumizing close the handle Lo in the vacuum pump Check the condition of the scale and hold it for 1 2min If the scale moves back in spite of tightening make flaring work again then return to the beginning of the step 3 4 Open the valve rod for the liguid stop valve to an angle of anticlockwise 90 degree After 6 seconds close the liguid stop valve and make the inspection of gas leakge Vacuuming Liguid stop valve Gas stop valve 5 No gas leakage In case of gas leakage tighten parts of pipe connection If leakage stops then proceed the step 6 If it does not stop gas leakage discharge whole refrigerants from the service port After flaring work again and vacuumize fill up prescribed refrigerant from the gas cylinder 6 Detach the charge hose from the service port open liguid stop valve and gas stop valve Turn the valve rod anticlockwise until hitting lightly 7 To prevent the gas leakage turn the service ports cap the valve rodis cap for liquid stop valve and gas stop valve a little more than the point where Valve rod cap L Valve rod cap the torque increases suddenly CAUTION Service port cap f the refrigerant of the air conditioner leaks it is necessary to make all the refrigerant out Vacuumize first then c
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