OUTDOOR UNIT INSTALLATION MANUAL
Contents
1. 5 0 to 6 2 Pipe connection 1 Ensure that the same wires and pipes are used for connecting all the indoor and outdoor units 2 Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers Then tighten the nut with a wrench and torque wrench as shown in the table above If the indoor units have different capacities connect them in the sequence of A and B starting with the unit which has the highest capacity Do not remove the flare nuts in any of the rooms where an indoor unit is not going to be connected Do not leave the pipes with their flare nuts removed standing for a prolonged period of time When connecting a capacity class 16 pipe to the indoor unit attach the expander which is available as an optional accessory to the 9 52 mm diameter service valve of the outdoor unit When attaching the expander to the outdoor unit be sure to fix the service valve with a wrench Air purge Undertake the steps described below in each of the two rooms With respect to the preservation of the terrestrial environment adopt Vacuum pump to purge air Evacuate air in the connecting pipes when installing the unit Hexagon wrench 4 mm is required 1 Connect the charge hose 1 e Check that the handle Hi manifold valve is closed completely Attach the connecting port of the charge hose on the end with a projection to push th2. charging port connecting sections on the main unit are different from those for the conventional refrigerant and different size tools are also required For connecting pipes use new and clean piping materials with highpressure withstand capabilities designed for R410A only and ensure that water or dust does not enter Moreover do not use any existing piping as its pressure withstand may be insufficient and may contain impurities EN THE MANUFACTURER SHALL NOT ASSUME ANY LIABILITY FOR THE DAMAGE CAUSED BY NOT OBSERVING THE DESCRIPTION OF THIS MANUAL FOR USE BY QUALIFIED PERSONS ONLY MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A CONTACT SEPARATION OF AT LEAST 3 mm IN ALL POLES MUST BE INCORPORATED IN THE FIXED WIRING TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES ARE OFF FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK CONNECT THE CONNECTING CABLE CORRECTLY IF THE CONNECTING CABLE IS CONNECTED WRONGLY ELECTRIC PARTS MAY BE DAMAGED CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEATERS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN A
3. these caps with torque in the following table 6 Check the gas leaks after connection Tighten torque Service valve Valve stem cap Service port cap Nem kgfem Nem kgfem Liquid side 6 35 14to 18 1 4 to 1 8 Gas side 9 52 33 to 42 3 3 to 4 2 14 to 18 1 4 to 1 8 Compound pressure gauge Pressure gauge 101 kPa 76 cmHg Manifold valve Handle Lo Handle Hi Charge hose Keep full closed For R410A only Charge hose Connecting pipe For R410A only Vacuum pump adapter for counter flow prevention For R410A only Service valve at liquid side Service valve at gas side Service port Valve core Setting pin v mm Valve stem cap Install in rooms that are 5 m or larger If a leak of refrigerant gas occurs inside the room an oxygen deficiency can occur Adding refrigerant No more refrigerant needs to be added if the total pipe length is no more than 20 meters e Add 20 g of refrigerant for every 1 m of piping that exceeds 21 m Procedure for charging the refrigerant 1 After the air inside the refrigerant pipe has been purged close the valve and while the units are not running charge the refrigerant 2 Ifthe specified amount of refrigerant cannot be charged add the remaining refrigerant from the charge port of the service valve at the gas side while at the same time performing a cooling operation Precautions to be heeded while the refrigerant i
4. to do so may cause electrical shock e Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit Ensure that drained water is discharged Improper drainage can result in water leakage causing water damage to furniture e Tighten the flare nut with a torque wrench using the prescribed method Do not apply excess torque Otherwise the nut may crack after a long period of usage and it may cause the leakage of refrigerant Wear gloves heavy gloves such as cotton gloves for installation work Failure to do so may cause personal injury when handling parts with sharp edges e Do not touch the air intake section or the aluminum fins of the outdoor unit It may cause injury Do not install the outdoor unit in a place which can be a nest for small animals Small animals could enter and contact internal electrical parts causing a failure or fire Request the user to keep the place around the unit tidy and clean Make sure to conduct a trial operation after the installation work and explain how to use and maintain the unit to the customer in accordance with the manual Ask the customer to keep the operation manual along with the installation manual REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation If you experience any problems or if the installation is not ac
5. vibration proof Fixing leg rubber pads GOOD Foundation Bottom plate of outdoor unit Foundation Support the bottom surface of the fixing leg that is in contact with and underneath the bottom plate of the outdoor unit NO GOOD If only the end of the fixing leg is supported Do not support the outdoor unit only it may deform Nie with the fixing leg Foundation EN 6 REFRIGERANT PIPING How to remove the service valve cover e Remove the three screws Pull the service valve cover in the direction of the arrow and remove it Service valve cover Small Screw i im wa YASS y Refrigerant piping connection Flaring 1 Cut the pipe with a pipe cutter 2 Deburr the inside of the pipe at its end Take steps to ensure that the removed burrs will not enter the pipe 3 Remove the flare nuts provided with the indoor and outdoor units and insert them into the pipe 4 Flare the pipe The projection margin of the pipe must be checked 5 Check that the flare has the appropriate shape Ty ey Bre Si Cc n A Die Pipe i xX BX Pipe A B Flare Nut En Imperial A Rigid R Outside Thickness clutch type wing nut Cc Tighten torque diameter R410A tool type R410A tool mm mm mm mm mm mm Nem kgfem 6 35 0 8 Oto 0 5 1 5 to 2 0 9 1 17 14to 18 1 4to 1 8 9 52 0 8 Oto 0 5 1 5 to 2 0 13 2 22 33 to 42 3 3 to 4 2 12 7 0 8 Oto 0 5 2 0 to 2 5 16 6 26 50 to 62
6. 1 ea 1 Refrigerant piping covered with insulating material polyethylene form 6 mm thick Accessories Installation manual CD ROM Installation manual Drain nipple 2 Rubber cap Water proof 2 2 S amp S F GAS label In case the duct type or cassette type unit is to be installed it shall be covered with thicker insulating material polyethylene form 10 mm thick EN 2 Heat pump models only 5 INSTALLATION OF OUTDOOR UNIT Installation location A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration A place where the operation noise and discharged air do not disturb neighbors A place which is not exposed to a strong wind A place free of combustible gases A place which does not block a passageway When the outdoor unit is to be installed in an elevated position be sure to secure its feet If the outdoor unit is to be mounted on a wall make sure the platform supporting it is sturdy enough The base plate should be designed and manufactured to maintain its strength over a long period of time and sufficient consideration should be given to ensuring that the outdoor unit will not fall When the outdoor unit is to be mounted high on a wall take particular care to ensure that parts do not fall and that the installer is protected When doing installation work at ground level it is usual to make
7. NOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R410A WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS WHEN INSTALLING OR RE INSTALLING THE AIR CONDITIONER DO NOT INJECT AIR OR OTHER SUBSTANCES BESIDES THE DESIGNATED REFRIGERANT R410A INTO THE REFRIGERATING CYCLE IF AIR OR OTHER SUBSTANCES ARE MIXED AN ABNORMAL PRESSURE CAN OCCUR IN THE REFRIGERATING CYCLE AND THIS CAN CAUSE AN INJURY DUE TOA PIPE RUPTURE A WARNING AN CAUTION Do not use any refrigerant different from the one specified for complement or replacement Otherwise abnormally high pressure may be generated in the refrigerant cycle which may result in a failure or explosion of the product or an injury to your body Installation work must be requested from the supplying retail dealership or professional vendors Self installation may cause water leakage electrical shock or fire as a result of improper installation Specified tools and pipe parts for model R410A ar
8. TOSHIBA OUTDOOR UNIT Leading Innovation gt gt gt INSTALLATION MANUAL AIR CONDITIONER MULTI SPLIT TYPE For general public use Outdoor Unit RAS M14GAV E RAS M18UAV E RAS M14GACV E RAS M18GACV E ENGLISH EN CONTENTS PRECAUTIONS FOR SAFETY INSTALLATION SERVICE TOOLS SPECIFICATIONS nen OPTIONAL PARTS ACCESSORIES INSTALLATION OF OUTDOOR UNIT REFRIGERANT PIPING ELECTRICAL WORK GROUNDING TEST OPERATION aerostat htt E E Please read this installation manual carefully before installing the air conditioner OMODNODARWNY ONNOaARWWNY IMPORTANT NOTICE e For details on how to install the indoor units refer to the installation manual accompanying the indoor units 1 PRECAUTIONS FOR SAFETY Be sure to read this installation manual carefully before installing The supplied CD ROM contains the installation manual translated into many languages Recommend to the owner to perform maintenance periodically when using over long periods of time Be sure to follow the precautions provided here to avoid safety risks The symbols and their meanings are shown below It indicates that incorrect use of this unit can result in a high Z DANGER possibility of severe injury 1 or death It indicates that incorrect use of this unit may cause severe A WARNING injury or death It indicates that incorrect use of this unit may cause personal A CAUTION i
9. along piping connection port 200 mm or more 250 mm or When installing the outdoor unit leave open in at least two of directions A B C and D shown in the right figure Ensure sufficient space to allow drainage Draining off the water from the outdoor unit If it is necessary to drain off the water from the outdoor unit install two water proofing rubber caps and a drain nipple Water proofing rubber caps supplied with the outdoor unit Precautions about installation in regions with snowfall and cold temperatures Do not use the water proofing rubber cap and drain nipple If there is a danger that the drain water might freeze take steps to ensure that the water will drain off in the most efficient manner To protect the outdoor unit from snow accumulation install a holding frame and attach a snow protection hood and plate Install at least 500 mm above the snow accumulation line Fixing the outdoor unit e Secure the outdoor unit with the anchor bolts Use 8 mm or 10 mm anchor bolts and nuts Set the out margin of the anchor bolt to 15 mm or less Install the outdoor unit so that it is level Install the foundation and vibration proof rubber pads to directly support the bottom surface of the fixing leg 4 Suction side Elongated 600 drain hole o 108 125 8 ee i t 15 or less Drain hole Diffuser GOOD Absorb vibration with
10. cepted by the supplier the service agency will take adequate countermeasures 2 INSTALLATION SERVICE TOOLS Changes in the product and components In air conditioners using R410A in order to prevent any other refrigerant from being accidentally charged the service port diameter size of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch e In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and opposing flare nuts sizes have been changed For copper pipes with nominal dimensions 1 2 and 5 8 pane manifolditor Philips screwdriver Pipe cutter Bato Op for En hose for Level Torque wrench alae exagonal OT Gas Paraon a104 Utility knife Reamer EN 3 SPECIFICATIONS Model RAS M14GAV E RAS M18UAV E RAS M14GACV E RAS M18GACV E Cooling operation 5 43 C 5 43 C 5 43 C 5 43 C iet Dry operation 5 43 C 5 43 C 5 43 C 5 43 C Heating operation 10 24 C 15 24 C Height 550 mm Dimension Width 780 mm Depth 290 mm Net weight 36 kg 41 kg 36 kg 40 kg Refrigerant R410A 0 9 kg 1 2 kg 0 9 kg 1 2 kg Power supply 1ph 50Hz 220 240V 1ph 60Hz 220V Maximum running current 13 2 A 14 4 A 13 2 A 13 2 A Installation fuse rating 16 A breaker or fuse all types can be used Power cord HO7RN F or 602451EC66 3 core 1 5 m
11. d overpressure inside the refrigeration cycle resulting in burst of the unit or injury OREN OND EN 7 ELECTRICAL WORK e Be sure to comply with local regulations codes when running the wire from outdoor unit to indoor unit Size of wire and wiring method etc Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire e Ensure that all terminals are securely fixed using the specified cables so preventing any external forces having a negative effect on the terminals e Improper connection or fixing may cause a fire e Be sure to connect earth wire grounding work e Incomplete grounding cause an electric shock e Use a circuit breaker of a type that is not tripped by shock waves e Incorrect incomplete wiring will cause electrical fires or smoke Prepare the power source for exclusive use with the air conditioner e This product can be connected to the main power Fixed wire connections A switch that disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring Wiring connection The dashed lines show on site wiring Indoor outdoor Main circuit connecting wires Input power O gese Remote controller 0 0 Outdoor unit Indoor unit Earth Leakage breaker Connect the indoor outdoor connecting wires to the identical terminal numbers on th
12. e connected indoor units to COOL mode and check the operation Itis unnecessary to set the temperature e Miswiring checks cannot be executed when the outdoor air temperature is 5 C or less 3 Start the check Perform a cooling operation only for the indoor unit which is installed in room A and check that cool air is being blown out from the indoor unit in this room If cool air is not being blown out from the indoor unit in room A touch the piping used to make the connections to room B where the indoor unit is shut down If it is verified that the piping is cold to the touch and that refrigerant is circulating it means that a mistake has been made in the connection of the piping and or wiring to the indoor units Turn off the power breaker and check the situation again Gas leak check e Check for gas leaks at all connections of the indoor unit and outdoor unit e For R410A use the leak detector exclusively manufactured for R410A refrigerant Flare nut connections Indoor unit Flare nut connections Outdoor unit Valve stem cap connection Service port cap connection Test operation 1 When performing the test operation during the summer months proceed with the cooling operation first and after the room temperature has dropped perform the heating operation Heating operation Remote control temperature setting of 30 C e When performing the test operation during the winter months proceed with the heatin
13. e required and installation work must be done in accordance with the manual HFC type refrigerant R410A has 1 6 times more pressure than that of conventional refrigerant R22 Use the specified pipe parts and ensure correct installation otherwise damage and or injury may be caused At the same time water leakage electrical shock and fire may occur Be sure to install the unit in a place which can sufficiently bear its weight If the load bearing of the unit is not enough or installation of the unit is improper the unit may fall and result in injury Electrical work must be performed by a qualified electrical engineer in accordance with the code governing such installation work internal wiring regulations and the manual A dedicated circuit and the rated voltage must be used Insufficient power supply or improper installation may cause electrical shock or fire Use a cabtyre cable to connect wires in the indoor outdoor units Midway connection stranded wire and single wire connections are not allowed Improper connection or fixing may cause a fire Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed Improper cover installation may cause increased heat fire or electrical shock at the terminal area Be sure to use only approved accessories or the specified parts Failure to do so may cause the unit to fall water leakage fire or electrical shock After the installation
14. e terminal block of each unit e Incorrect connection may cause a failure Remove the service valve cover from the outdoor unit Remove the cord clamp Connect the power cord and the connecting cable to the terminal as identified by the matching numbers on the terminal block of indoor and outdoor unit Secure the power cord and the connecting cable with the cord clamp 5 Attach the service valve cover on the outdoor unit on Stripping length of connecting cable for outdoor unit Di 23 Y 10 10 y T hof 40 40 1 30 30 t Power cord Pennine Earth line Connecting cable EN Terminal block mamaa aaam 2 3 a es 5 Gal E 11212111 a REA AN AR T AA T AAR Connecting cable for unit A Power cord Connecting cable for unit B 8 GROUNDING This air conditioner must be grounded without fail Grounding is necessary not only to safeguard against the possibility of receiving an electric shock but also to absorb both the static which is generated by high frequencies and held in the surface of the outdoor unit and noise since the air conditioner incorporates a frequency conversion device called an inverter in the outdoor unit If the air conditioner is not grounded users may receive an electric shock if they touch the surface of the outdoor unit and that unit is charged with static 9 TEST OPERATION Miswiring Mis piping check 1 Turn on the power breaker 2 Set all th
15. e valve core setting pin to the service port of the set 1 When acontrol valve or charge valve is connected between the charge hose and service port the R410A refrigerant can definitely be prevented from being discharged to the atmosphere during the air purging process 2 Open Handle Lo fully Turn ON the vacuum pump e Loosen the flare nut of the connected pipe Gas side a little to check that the air passes through Retighten the flare nut e If the air fails to enter check whether the charge hose is connected securely to the service port e Purge the air for 15 or more minutes and check that a pressure level of 101 kPa 76 cmHg is indicated on the compound pressure gauge If the compound pressure gauge fails to indicate a pressure level of 101 kPa 76 cmHg it may mean that air is infiltrating from an area where a pipe is connected or other place Check the areas where the pipes are connected 3 Close Handle Lo completely Turn OFF the vacuum pump Leave the vacuum pump as it is for 1 or 2 minutes and check that the indicator of the compound pressure gauge does not return e No more refrigerant needs to be added if the total pipe length is no more than 20 meters Add 20 g of refrigerant for every 1 m of piping that exceeds 21 m 4 Disconnect the charge hose from the service port Open the valve shaft fully with a hexaganal wrench 5 Tighten the service port cap and valve stem cap securely e Securely tighten
16. er having closed the two service valves shut down the compressor and then remove the refrigerant pipe If removing the refrigerant pipe while the compressor is operating with the service valve opened it may cause air suction and overpressure inside the refrigeration cycle resulting in burst of the unit or injury Do not modify the power cable connect the cable midway or use a multiple outlet extension cable Doing so may cause contact failure insulation failure or excess current resulting in fire or electrical shock If you detect any damage do not install the unit Contact your supplying dealer immediately Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches e Please read this installation manual carefully before installing the unit It contains further important instructions for proper installation Exposure of unit to water or other moisture before installation could result in electric shock Do not store it in a wet basement or expose to rain or water After unpacking the unit examine it carefully for possible damage Do not install in a place that can increase the vibration of the unit Do not install ina place that can amplify the noise level of the unit or where noise and discharged air might disturb neighbors e This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed Failure
17. ethylene form 6 mm thick In case the duct type or cassette type unit is to be installed it shall be covered with thicker insulating material polyethylene form 10 mm thick When installing additional indoor units at a later date 1 Set the circuit breaker to the off position 2 Follow the same procedure starting with the REFRIGERANT PIPING item on the previous page and install the additional indoor unit or units Pump down operation recovering refrigerant Undertake the steps described below in each of the two rooms Open the service valve cover of the outdoor unit Connect the charge hose to the service port Turn on the unit Set the all connected indoor units to COOL mode and start the operation Wait until at least 10 minutes have elapsed since operation was started and then close the valve of the service valve at the liquid side Confirm that the compound pressure gauge reading is 101 kPa 76 cmHg Close the valve of the service valve at the gas side Turn off the unit Disconnect the connection pipes at both liquid and gas side In a pump down operation be sure to take the following steps Ensure that no air is allowed to enter inside the refrigeration cycle After having closed the two service valves shut down the compressor and then remove the refrigerant pipe If removing the refrigerant pipe while the compressor is operating with the service valve opened it may cause air suction an
18. g operation first and then perform the cooling operation Cooling operation Remote control temperature setting of 17 C 2 The test operation must be performed without fail one room at a time for all the rooms concerned and the operations for cooling and heating must each be performed for at least 10 minutes e The cooling and heating operations can be performed using the room temperature sensors of the indoor units Cooling operation Expose the room temperature sensor to a hair dryer or other heating device Heating operation Hold a chilled towel or other article up against the room temperature sensor What is to be explained to the customers e While referring to the OWNER S MANUAL which is provided with the indoor unit have the customers actually use the controls on the unit for themselves and show them how to operate the unit correctly Do not select the cooling operation and heating operation at the same time When these indoor units in two or more rooms are to be operated at the same time the type of operation in the room where operation was first initiated takes precedence When the air conditioner is started up or when its operation mode is switched operation will not be initiated for about 3 minutes This delay is designed to protect the main unit and it is normal and not indicative of any malfunctioning When the outdoor temperature drops power is supplied to the compressor to preheat it as a way of protecting the co
19. m Connecting cable HO7RN F or 602451EC66 4 core 1 0 mm Pipe length Minimum for 1 unit 2m Maximum for 1 unit 20m Maximum for all units 30m Height difference 10m No additional refrigerant charge 20m Refrigerant adjustment 20 g m 21 m 30 m The specifications for the performance of this air conditioner differ depending on the combination of the indoor units which will be operated For details refer to the catalogue For operation read the OWNER S MANUAL packed with the indoor units 1 If the air conditioner is used in conditions other than above the safety protection functions may be activated Table of models that can be connected RAS M14GAV E RAS M14GACV E RAS M18UAV E RAS M18GACV E Standard connecting pipe diameter B 10 07 or 10 or 13 10 or 13 6 35 9 52 mm A 10 or 13 07 or 10 or 13 or 16 10 or 13 or 16 6 35 9 52 mm Total 23 29 26 All combinations that do not exceed the Total number can be installed The outdoor unit must be connected to at least two indoor units Example of indoor unit class RAS M10PKVP E is abbreviated as 10 4 OPTIONAL PARTS ACCESSORIES Optional installation parts Part name Specifications Q ty Indoor unit name Liquid side Gas side a Abbreviation Outer diameter Outer diameter Refrigerant piping 1 07 10 13 6 35 mm 9 52 mm 1 ea 16 6 35 mm 12 7 mm Putty PVC tapes
20. mpressor Use the air conditioner with the circuit breaker left at the on setting The power consumption level while the compressor is in the preheat status is approximately 20 W This outdoor unit uses an electronic expansion valve It will make a rattling sound when the power is turned on and when operation is started up at a rate of once every one to two months This is normal and not indicative of any malfunctioning This sound is made when the initial settings for ensuring that control will be exercised under the optimum conditions are being established During heating operations refrigerant will flow to the indoor units which are currently shut down as well For this reason sounds may be heard from the units which are shut down or the surfaces of the indoor units may warm up EN TOSHIBA CARRIER CORPORATION EG32908905
21. njury 2 or property damage 3 1 A severe injury refers to blindness injury burns hot or cold electrical shock bone fracture or poisoning that leaves aftereffects and requires hospitalization or extended out patient treatment 2 Personal injury means a slight accident burn or electrical shock which does not require admission or repeated hospital treatment 3 Property damage means greater damage which affects assets or resources For general public use Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed flexible cord design HO7RN F or cord designation 60245 IEC66 1 5 mm or more Shall be installed in accordance with national wiring AN DANGER regulations A CAUTION New refrigerant air conditioner installation THIS AIR CONDITIONER USES THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY THE OZONE LAYER R410A refrigerant is apt to be affected by impurities such as water oxidizing membranes and oils because the pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 As well as the adoption of this new refrigerant refrigerating machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigerating machine oil does not enter the refrigeration cycle of a new refrigerant air conditioner To avoid mixing refrigerant and refrigerating machine oil the sizes of
22. product or recharging the gas shall comply under EC Regulation No 842 2006 on certain fluorinated greenhouse gases and any relevant local egislation 6 Contact dealers installers etc for any questions Refrigerant Label Contains fluorinated greenhouse gases covered by the Kyoto Protocol Pre charged Refrigerant at Factory kg specified in the nameplate Additional Charge on Installation Site kg Caution Write out charge amount and D D by indelible means on installation site R410A Write here the amount of pre charged refrigerant at factory specified in the nameplate 1 k Write here the amount of additional charge on 9 lt installation site L A kg Write here the amount of refrigerant which is equivalent to total of 1 and 2 Ue DG44206101 NOTE Periodical inspections for refrigerant leaks may be required depending on European or local legislation Gas leak check Check for gas leaks at all connections of the indoor unit and outdoor unit For R410A use the leak detector exclusively manufactured for R410A refrigerant K Flare nut connections Indoor unit Flare nut connections Outdoor unit Valve stem cap connection Service port cap connection Insulating the pipes Insulate the pipes separately for the liquid side and gas side Refrigerant piping covered with insulating material poly
23. s being charged e Charge the refrigerant while it is still in liquid form e Charging the refrigerant in the form of a gas will change the composition of the refrigerant making normal operation impossible Precautions for adding refrigerant e Use a scale having a precision with at least 10 g per index line when adding the refrigerant Do not use a bathroom scale or similar instrument e Use liquid refrigerant when refilling the refrigerant Since the refrigerant is in liquid form it can fill quickly Therefore perform the filling operation carefully and insert the refrigerant gradually Precautions for the refrigerant This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Chemical name of gas R410A Global Warming Potential GWP of gas 1975 1 Paste the enclose refrigerant label adjacent to the charging and or recovering location 2 Clearly write the charge refrigerant quantity on the refrigerant label using indelible ink 3 Prevent emission of the contained fluorinated greenhouse gas Ensure that the fluorinated greenhouse gas is never vented the atmosphere during installation service or disposal When any leakage of the contained fluorinated greenhouse gas is detected the leak shall be stopped and repaired as soon as possible 4 Only qualified service personnel are allowed to access and service is product 5 Any handling of the fluorinated greenhouse gas in the product such as when moving the
24. wiring and pipe connections to the indoor units first and then to make connections to the outdoor units However if outdoor work is difficult it is possible instead to make changes to the procedure For example by making adjustments to the wiring and piping lengths on the inside rather than the outside A place where the drain water does not cause any problems Install the outdoor unit in a location where there are no obstructions near its air intake or air outlet When the outdoor unit is installed in a place that is always exposed to strong winds like on the coast or on a high story of a building secure the normal fan operation using a duct or a wind shield Especially in windy areas install the unit to prevent the admission of wind Installation in the following places may result in trouble Do not install the unit in such places A place full of machine oil A saline place such as the coast A place full of sulfide gas A place where high frequency waves are likely to be generated such as from audio equipment welders and medical equipment Necessary space for installation NOTE For installation at least 3 sides should be kept away from obstacles walls 80 mm or more only when unobstructed to the front and both sides 50 mm or more In principle from wall As shown in the SN open figure position power cord and 100 mm or more connecting from wall cable downward and lead out
25. work ensure that there is no leakage of refrigerant gas If the refrigerant gas leaks out of the pipe into the room and is heated by fire or something else from a fan heater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly earthed Do not connect the earth wire to a gas pipe water pipe lightning conductor or telephone earth wire Improper earth work may be the cause of electrical shock Do not install the unit where flammable gas may leak If there is any gas leakage or accumulation around the unit it can cause a fire Do not select a location for installation where there may be excessive water or humidity such as a bathroom Deterioration of insulation may cause electrical shock or fire Installation work must be performed following the instructions in this installation manual Improper installation may cause water leakage electrical shock or fire Check the following items before operating the unit Be sure that the pipe connection is well placed and there are no leaks Check that the service valve is open If the service valve is closed it may cause overpressure and result in compressor damage At the same time if there is a leak in the connection part it may cause air suction and overpressure resulting in burst of the unit or injury In a pump down operation be sure to take the following steps Ensure that no air is allowed to enter inside the refrigeration cycle Aft
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