INSTALLATION MANUAL
Contents
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5. 15 14 243 2 5 2 T N R e eri A y T Li D 4 cos D gt lt LO G a al N co co n 4 1 AN o H Q U 5 10MX3 27777777 GE 2 AAA N 16 19 21 23 22 U 5 48MX3 Urban Multi air conditioner Installation manual CONTENTS Page A ss c 1 A MM 1 1 2 Standard supplied accessories viniste 2 1 3 Optional 2 1 4 Technical and Electrical specifications 2 2 Mam EONPO MS T OO 2 IOC ANON 2 4 Inspecting and handling the BEES sti MEA RR ua 5 Unpacking and placing The 3 PIDIN NEL UM 4 6 1 Selection of piping Mala 4 6 2 Connecting the refrigerant 4 6 3 Example of connection a 7 6 4 Leak test and vacuum drying s anas 9 E Hr p ETT OTHERS 10 6 6 Additional refrigerant charge seeks vnedacconndtessvnonnenensssancuninistentnadanwom
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7. Keep power imbalance within 296 of the supply rating Large imbalance will shorten the life of the smoothing capacitor As a protective measure the product will stop operating and an error indication will be made when power imbalance exceeds 496 of the supply rating Follow the electrical wiring diagram when carrying out any electrical wiring Only proceed with wiring work after blocking off all power Always ground wires In accordance with national regulations of the pertinent country Do not connect the ground wire to gas pipes sewage pipes lightning rods or telephone ground wires Combustion gas pipes can explode or catch fire if there is a gas leak e Sewage pipes no grounding effect is possible if hard plastic piping is used e Telephone ground wires and lightning rods dangerous when struck by lightning due to abnormal rise in electrical potential in the grounding This unit uses an inverter and therefore generates noise which will have to be reduced to avoid interfering with other devices The outer casing of the product may take on an electrical charge due to leaked electrical current which will have to be discharged with the grounding Be sure to install an earth leak detector One that can handle higher harmonics This unit uses an inverter which means that an earth leak detector capable of handling high harmonics needs to be used in order to prevent malfunctioning of the earth leak detecto
8. Panasonic INSTALLATION MANUAL URBAN MULTI AIR CONDITIONER U 5MX3XPQ U 8MX3XPQ A U 10MX3XPQ A U 12MX3XPQ A U 14MX3XPQ A U 16MX3XPQ A U 18MX3XPQ U 20MX3XPQ U 22MX3XPQ U 24MX3XPQ U 26MX3XPQ U 28MX3XPQ U 30MX3XPQ U 32MX3XPQ U 34MX3XPQ U 36MX3XPQ U 38MX3XPQ U 40MX3XPQ U 42MX3XPQ U 44MX3XPQ U 46MX3XPQ U 48MX3XPQ e 220mm A B C D f gt 600 mm _ 12900 mm c 2500 mm a 250 mm b 250mm d 2500 mm f 2500 mm f 2600 mm 2200 mm A B c gt 300 mm 5400 gt 1500 mm d gt d h 2 h h gt 500 mm gt c h 2 Er L 5 E T h 1 U 5MX3 U 8 10MX3 U 12 16MX3 155 2 3 ar a T PUE d 4 5 U 5 16MX3 U 18 48MX3 B B 1 1 2 2 5 2 2 6 6 6 U 5 16MX3 48MX3 U 18 11 Q2 F1 F2 F1 F2 01 C H SELECTOR TO IN D UNIT TO OUT D UNIT TO MULTI UNIT
9. 1 2 Round pressure terminal Power wire O X For wiring use the designated power wire and connect firmly then secure to prevent outside pressure being exerted on the terminal board Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will strip the head and make proper tightening impossible Over tightening the terminal screws may break them See the table below for tightening torque for the terminal screws Tightening torque M8 Power terminal block 5 5 7 3 8 Ground M3 Inter unit wiring terminal block 0 8 0 97 Precautions when connecting the ground When pulling the ground wire out wire it so that it comes through the cut out section of the cup washer An improper ground connection may prevent a good ground from being achieved 1 Round pressure terminal Cut out section D Cup washer 1 23 In case of U 18 48MX3 See figure 15 Unit A Base unit Unit B Unit C To cooler heater selector To indoor unit To outdoor unit o 0 NM To multi unit Fixing field line connection See figure 12 Field line connection transmission wiring and cool heat selection In case of U 5 16MX3 See figure 14 1 Heating cooling switching remote control cord when a heating cooling switch remote control optional is connected 2 Fix to the indicated plastic brackets using field supp
10. 12 Crimp style terminal 13 Wire gauge Small 14 Wire gauge Large 15 Plastic bracket See figure 21 1 Electric wiring 2 Wiring between units 3 Clamp to the electric box with field supplied clamps 4 When routing out the power ground wires from the right side 5 When routing the remote control cord and inter unit wiring secure 6 7 8 9 CQ 12 13 14 15 16 17 18 clearance of 50 mm or more from the power wiring Ensure that the power wiring does not contact any heated sections Clamp to the back of the column support with field supplied clamps When routing out the inter unit wirings from the opening for piping When routing out the power ground wires from the front When routing out the ground wires from the left side Grounding wire When wiring pay attention not to detach the acoustic insulators from the compressor Power supply Fuse Earth leakage breaker Ground wire Unit A Unit B Unit C U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Installation manual 13 Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause abnormal heat B When connecting wiring which is the same thickness do as shown in the figure below OTs
11. B C terminals and set the cool heat selector switch DS1 on the 5 Terminal board field supply outdoor unit PC board A1 P to OUT D UNIT See figure 17 6 Indoor unit 1 Cool heat selector 7 Outdoor unit A For low noise operation it is necessary to get the optional External control adaptor for outdoor unit For details see the installation manual attached to the adaptor Installation manual U 5 48MX3 1 4 Urban Multi air conditioner 4PW16235 1C Picking power line and transmission line on gt OF E Be sure to let the power line and the transmission line pass through a conduit hole Pick the power line from the upper hole on the left side plate from the front position of the main unit through the conduit hole of the wiring mounting plate or from a knock out hole to be made in the unit s bottom plate See figure 18 Electric wiring diagram Printed on the back of the electric box lid Cut off the shaded zones before use Through cover Power wiring between outdoor units When the wiring is routed out through the lateral panel Set apart Transmission wire Knockout hole Power wiring between outdoor units when wiring is routed through the front panel Precautions when knocking out knock holes To punch a knock hole hit on it with a hammer After knocking out the holes we recommend you paint the edges and areas around the edges using the repair paint to prevent rusting When passing electri
12. Caution label attached on the front Maka outs panel of the outdoor unit See figure 19 Closing stop valve 1 Remove the cap and turn the valve clockwise with the hexagon 1 Electric box lid wrench 2 Service precautions Label location 2 Securely tighten the valve until the shaft contacts the main body seal 3 Caution Label location 3 Make sure to tighten the cap securely For the tightening torque refer to the table below Pressurize the liquid and gas pipes and oil equalizing pipe in case of U 18 48MXG type to 3 8 MPa 38 bar do not pressurize more than Tightening torque clockwise to close 3 8 MPa 38 bar If the pressure does not drop within 24 hours the Gas line system passes the test If the pressure drops check where the piping nitrogen leaks from Cap Service attached g Shaft valve body valve lid port Flare nut to unit Vacuum drying Use a vacuum pump which can evacuate to 06 4 14 17 100 7 kPa 5 Torr 755 mm Hg 5 4 6 6 Hexagonal 13 5 16 5 29 5 wrench 33 39 1 Evacuate the system from the liquid and gas pipes and oil 4mm equalizing pipe in case of U 18 48MX3 type by using vacuum 0127 81 99 18 22 50 60 pump for more than 2 hours and bring the system to 100 7 kPa Hexagonal 115 139 After keeping the system under that condition for more than 1 hour 015 9 13 5 16 5 wrench 2
13. front When handling the unit take into account the following 1 Plug the areas marked with 1 5 Fragile handle the unit with care When the piping is routed from the front i tt Keep the unit upright in order to avoid compressor damage Gas side piping 1 2 3 Liquid side piping 2 Choose on beforehand the path along which the unit is to be brought in 3 Lift the unit preferably with a crane and 2 belts of at least 8 m long 4 When lifting the unit with a crane always use protectors to prevent belt damage and pay attention to the position of the unit s centre of gravity U 5 48MX3 Installation manual Urban Multi air conditioner 4PW16235 1C 6 REFRIGERANT PIPING A Use R 410A to add refrigerant All field piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations CAUTION TO BE TAKEN WHEN BRAZING REFRIGERANT PIPING Do not use flux when brazing copper to copper refrigerant piping Particularly for the HFC refrigerant piping Therefore use the phosphor copper brazing filler metal BCuP which does not require flux Flux has extremely harmful influence on refrigerant piping systems For instance if the chlorine based flux is used it will cause pipe corrosion or in particular if the flux contains fluorine it will damage the refrigerant oil Be sure to perform a nitrogen blow when brazing Brazing without performing nitro
14. the indoor units is connected The other outdoor units are child units As necessary configure the system settings on site by using the dipswitch DS1 on the outdoor unit P board A1P and push button switches BS1 5 When the system is in the multiple outdoor unit configuration Out Multi perform the configuration on the parent unit Any settings made on a child unit will be ignored Always perform configuration after turning ON the power To learn the setting method refer to the Service precautions label attached at the position shown in figure 19 Electric box lid in outdoor unit Remember the actual settings you have made must be recorded on the Service Precautions label Check if the stop valves are in appropriate status and correct any wrong status Refer to the table in 6 6 Additional refrigerant charge on page 10 CAUTION Do not leave any stop valve closed Otherwise the compressor will fail Perform the check operation following the instructions printed on the Service Precaution label The system operates for about 15 minutes 30 minutes at maximum and automatically stops the test operation The system can start a normal operation about 15 minutes after the test operation only if the remote controller displays no error codes 1 Electric box lid 2 Location of the service precautions label 8 2 Testrun After completing installation be sure to open the va
15. the lid and arrange the electrical wires so as to prevent the lid or other parts from coming loose B When you don t use a wire conduit be sure to protect the wires with vinyl tubes etc to prevent the edge of the knock out hole from cutting the wires U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Installation manual 8 8 1 Checks before initial start up During the operation monitor the outdoor unit operation status and check for any incorrect wiring See figure 19 A Make sure that the circuit breaker on the power supply panel of the installation is switched off Attach the power wire securely Introducing power with a missing N phase or with a mistaken N phase will break the equipment Turn ON the power to the outdoor units and indoor units Make sure to turn ON the power 6 hours before starting the operation This is necessary to warm the crankcase preliminarily by the electric heater After the installation check the following before switching on the circuit breaker 1 The position of the switches that require an initial setting Make sure that switches are set according to your application needs before turning the power supply on 2 Power supply wiring and transmission wiring Use a designated power supply and transmission wiring and make sure that it has been carried out according to the instructions described in this manual according
16. to use a high speed type 300 mA rated residual operating current Be sure to install a main switch for the complete system NOTE ra Select the power supply cable in accordance with relevant local and national regulations Wire size must comply with the applicable local and national code Specifications for local wiring power cord and branch wiring are in compliance with IEC60245 WIRE TYPE HO5VV Only in protected pipes use HO7RN F when protected pipes are not used Installation manual 12 U 5 48MX3 Urban Multi air conditioner 4PW16235 1C 7 4 7 5 General Up to 3 units can be connected by crossover power source wiring between outdoor units However units of smaller capacity must be connected downstream For details refer to the equipment design data and technical data When connecting several units in Urban Multi combination the power supply of each outdoor unit can also be connected separately Refer to the field wiring on the engineering data book for further details Make sure to connect the power source wire to the power source terminal block and to clamp it as shown in figure 10 chapter Field line connection As this unit is equipped with an inverter installing a phase advancing capacitor not only will deteriorate power factor improvement effect but also may cause capacitor abnormal heating accident due to high frequency waves Therefore never install a phase advancing capacitor
17. under the bottom frame Flange or flare nut in case of models U 5MX3 type Gas side pipe 1 2 3 supplied with the unit In case of U 5MX3 type field supply Oil equalizing piping stop valve except U 5MX3 and U 8 10MX3 No piping work is needed Flare nut Brazing Except U 5MX3 Liquid side piping field supply Knockout hole use a hammer Gas side piping field supply Oil equalizing piping field supply installed In case of U 18 48MX3 To connect the piping between outdoor units an optional piping kit multi connection piping kit is always required When installing the piping follow the instructions in the installation manual that comes with the kit Front connection Remove the stop valve cover to connect See figure 6 Side bottom connection Remove the knock holes on the bottom frame and route the piping under the bottom frame See figure 6 Installation manual U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Be sure to use the supplied accessory pipes when carrying out piping work in the field NW sure that the field installed piping does not touch other pipes the bottom panel or side panel Especially for the bottom and side connection be sure to protect the piping with suitable insulation to prevent it from coming into contact with the casing Precautions when knocking out knock holes Be sure to avoid damaging the casing After knocking out the
18. 1C Installation manual Procedure for checking maximum concentration NOTES Check the maximum concentration level in accordance with steps 1 to 4 below and take whatever action is necessary to comply 1 Calculate the amount of refrigerant kg charged to each system separately amount of additional charging total amount of refrigerant in a amount amount of refrigerant kg in single unit system refrigerant added the system amount of locally in refrigerant with accordance with the which the system is length or diameter of charged before the refrigerant leaving the factory piping NOTE Where a single refrigerant facility is divided into 7 2 entirely independent refrigerant systems use the amount of refrigerant with which each separate system is charged 2 Calculate the smallest room volume m In a case such as the following calculate the volume of A B as a single room or as the smallest room A Where there are no smaller room divisions B Where there is a room division but there is an opening between the rooms sufficiently large to permit a free flow of air back and forth 1 opening between rooms 2 partition Where there is an opening without a door or where there are openings above and below the door which are each equivalent in size to 0 15 or more of the floor area 3 Calculating the refrigerant density using the results of the calculations in steps 1 and 2 above total volume of ref
19. 3 27 62 75 check if the vacuum gauge rises or not If it rises the system may 6 mm either contain moisture inside or have leaks 022 2 Hexagonal 2 Following should be executed if there is a possibility of moisture paid dl dis remaining inside the pipe if piping work is carried out during the raining season or over a long period of time rainwater may enter the See figure 23 pipe during work After evacuating the system for 2 hours pressurize the system to 1 Service port 0 05 MPa vacuum break with nitrogen gas and evacuate the 2 Ca i p system again using the vacuum pump for 1 hour to 100 7 kPa vacuum drying If the system cannot be evacuated to 100 7 kPa 3 Hexagon hole within 2 hours repeat the operation of vacuum break and vacuum 4 Shaft drying 5 Then after leaving the system in vacuum for 1 hour confirm that the vacuum gauge does not rise CAUTION NOTE Make sure to perform airtightness test and vacuum B Alwaysusea charge hose for service port connection Wf drying using the service ports of the stop valve shown M After tightening the cap check that no refrigerant leaks in the table below present FLARE SHAPE and FLARENUT TIGHTENING TORQUE U 5 16MX3 Liquid line stop valve Gas line stop valve Precautions when connecting pipes U 18 48MX3 Liquid line stop valve Gas line stop valve See the following table for flare part machining dimensions Oil equalizing line s
20. A can contribute slightly to the greenhouse effect if it is released Therefore we should take special attention to check the tightness of the installation Read 6 Refrigerant piping on page 4 carefully and follow these procedures correctly A Since design pressure is 3 8 MPa or 38 bar for R 407C units 3 3 MPa or 33 bar pipes of larger wall thickness may be required Refer to paragraph 6 1 Selection of piping material on page 4 7 INTRODUCTION This installation manual concerns Urban Multi units of the Panasonic MX3 series These units are designed for outdoor installation and used for cooling and heatpump applications The MX3 series can be combined from 6 main units and has nominal capacities ranging from 14 0 to 134 kW and nominal heating capacities ranging from 16 0 to 150 kW The MX3 units can be combined with Panasonic Urban Multi indoor units for air conditioning purposes and suitable for R 410A The present installation manual describes the procedures for unpacking installing and connecting the MX3 units Installation of the indoor units is not described in this manual Always refer to the installation manual supplied with these units for their installation 1 1 Combination The indoor units can be installed in the following range Always use appropriate indoor units compatible with R 410A To learn which models of indoor units are compatible with R 410A refer to the product catalogs Total
21. at selector a A N Indoor unit In extreme circumstances you should keep distances of 3m or more and use conduit tubes for power and transmission lines In heavy snowfall areas select an installation site where snow will not affect operation of the unit B refrigerant R 410A itself is nontoxic nonflammable and is safe If the refrigerant should leak however its concentration may exceed the allowable limit depending on room size Due to this it could be necessary to take measures against leakage Refer to the chapter 9 Caution for refrigerant leaks on page 17 B Do not install in the following locations Locations where sulfurous acids and other corrosive gases may be present in the atmosphere Copper piping and soldered joints may corrode causing refrigerant to leak Locations where equipment that produces electro magnetic waves is found The electromagnetic waves may cause the control system to malfunction preventing normal operation Locations where flammable gases may leak where thinner gasoline and other volatile substances are handled or where carbon dust and other incendiary substances are found in the atmosphere Leaked gas may accumulate around the unit causing an explosion 5 Bring the unit as close to its final installation position in its original package to prevent damage during transport See figure 3 Packaging material Opening large Belt sling Opening small 40
22. cal wiring through the knock holes remove any burrs from the knock holes and wrap the wiring with protective tape to prevent damage Loca o 1 O 1 1 2 2 333 Knockout hole If there are any possibilities that small animals enter the system through the knock holes plug the holes with packing materials to be prepared on site Burr Use a power wire pipe for the power wiring Outside the unit make sure the weak low voltage electric wiring i e for the remote control between units etc and the high voltage electric wiring do not pass near each other keeping them at least 50 mm apart Proximity may cause electrical interference malfunctions and breakage sure to connect the power wiring to the power wiring terminal block and secure it as described under Field line connection on page 13 NW Inter unit wiring should be secured as described Field line connection in chapter 7 5 Examples on page 13 e Secure the wiring with the accessory clamps so that it does not touch the piping e Make sure the wiring and the electric box lid do not stick up above the structure and close the cover firmly Never connect 400 V to the terminal block of the interconnecting wiring Doing so will break the entire system BO N The wiring from the indoor units must be connected to the F1 F2 In Out terminals on the PC board in the outdoor unit Af
23. capacity quantity of indoor units Total capacity of Total quantity of Outdoor unit indoor units indoor units U 5MX3 62 5 162 5 8 U 8MX3 100 260 13 U 10MX3 9 125 325 16 U 12MX3 150 390 19 U 14MX3 175 455 20 U 16MX3 53 200 520 20 U 18MX3 225 585 20 U 20MX3 250 650 20 U 22MX3 275 715 22 U 24MX3 300 780 32 U 26MX3 325 845 32 U 28MX3 350 910 32 U 30MX3 3 5 975 32 U 32MX3 400 1040 32 U 34MX3 425 1105 34 U 36MX3 450 1170 36 U 38MX3 475 1235 38 U 40MX3 500 1300 40 U 42MX3 525 1365 40 U 44MX3 550 1430 40 U 46MX3 575 1495 40 U 48MX3 600 1560 40 main unit U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Installation manual 1 2 Standard supplied accessories U 5MX3 U 8 16MX3 Gas line piping 1 1 1 Gas line piping 2 1 Installation manual 1 1 Operation manual 1 1 Additional refrigerant charge 1 1 label Refer to figure 22 1 Installation and operational manual 2 Accessory pipes 1 3 Optional accessories To install the above outdoor units the following optional parts are also required B Refrigerant branching kit for R 410A only Always use an appropriate kit dedicated for your system Refnet header Refnet joint CZ P29HK12Q CZ P20BK12Q CZ P64HK12Q CZ P29BK12Q CZ P75HK12Q CZ P64BK12Q CZ P75BK12Q Ou
24. connections See figure 8 One outdoor unit installed When multiple outdoor units installed Liquid line stop valve Gas line stop valve Indoor outdoor interconnection piping Sealing up treatment Heat insulator Oil equalizing line stop valve Oil equalizing line P Be sure to insulate local pipes as touching them can cause burns 6 6 Additional refrigerant charge A Refrigerant cannot be charged until field wiring has been completed Refrigerant may only be charged after performing the leak test and the vacuum drying see above When charging a system care shall be taken that its maximum permissible charge is never exceeded in view of the danger of liquid hammer Charging with an unsuitable substance may cause explosions and accidents so always ensure that the appropriate refrigerant R 410A is charged Refrigerant containers shall be opened slowly Always use protective gloves and protect your eyes when charging refrigerant To avoid compressor breakdown Do not charge the refrigerant more than the specified amount This outdoor unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require additional charging of refrigerant Refer to How to calculate the additional refrigerant to be charged on page 8 Make sure to use installation tools you exclusively use on R 410A installations to withstand the pressure and to prevent foreign materials fro
25. e reversed connection Check if the power wiring for the No viai outdoor ie are pa supplied to an outdoor or indoor U1 OBITU d If the power wire is not connected to unit including U4 L2 ph I an disol il phase phase no malfunction disp ay wi appear and the compressor will not interruption work Incorrect Check if the refrigerant line piping interconnections UF and the unit wiring are consistent between units with each other Recalculate the required amount of E E3 refrigerant from the piping length and F6 correct the refrigerant charge level by UF recovering any excessive refrigerant with a refrigerant recovery machine For the U 5 16MX3 the wiring is U7 Remove the wiring from the Q1 Q2 connected to the UF Out Multi Q1 Q2 Out Multi Check if the additional refrigerant charge has been finished correctly Insufficient E4 Recalculate the required amount of refrigerant F3 refrigerant from the piping length and add an adequate amount of refrigerant Temperature adjustment operation confirmation After the test run is over operate the unit normally Heating is not possible if the outdoor temperature is 24 C or higher B Make sure the indoor and outdoor units are operating normally If a knocking sound can be heard in the liquid compression of the compressor stop the unit immediately and then energize the heater for a sufficient length of time before restarting the operation B Run each ind
26. e figure 9 Presssure reducing valve Nitrogen Tank Siphon system Measuring instrument Vacuum pomp Valve A Gas side DAN O C N Outdoor unit e Liquid side Indoor unit N Stop valve service port Charge hose IA To indoor unit Oil equalizing line 16 Valve B 1 Fully open the gas line stop valve liquid line stop valve and valve A above must be left fully closed and start the additional refrigerant charge operation 2 After the system is charged with a specified amount of refrigerant press the confirmation button BS3 on the P board A1P in the outdoor unit to stop the additional refrigerant charge operation 3 Immediately restore the stop valve to the following status Otherwise the piping may burst due to liquid seal Liquid line Gas line stop Oil equalizing line stop valve Close Default status before delivery stop valve valve Open Open U 18 48MX3 When multiple outdoor unit installed See figure 9 1 Fully open the gas line stop valve oil equalizing line stop valve liquid line stop valve and valves A and B above must be left fully closed start the additional refrigerant charge operation 2 After the system is charged with a specified amount of refrigerant press the confirmation button BS3 on the P board A1P in the outdoor unit to stop the additional refrigerant charge operation 3 Immediately restore the
27. ecienass 10 T Field dioe A 11 TA Int rnal wiring Parts ii 11 7 2 Optional parts cool heat SelectOr uusiiuus ce err treat mener n rena 12 7 3 Power circuit and cable requirements oorr 12 19 peu o 13 8 Before operation audes cocci irae nie didum ii 16 8 1 Checks before initial start up circle 16 16 9 Caution Tor refrigerant leaks rindan a 17 A READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT DO NOT THROW IT AWAY KEEP IT IN YOUR FILES FOR FUTURE REFERENCE IMPROPER INSTALLATION OR ATTACHMENT OF EQUIPMENT OR ACCESSORIES COULD RESULT IN ELECTRIC SHOCK SHORT CIRCUIT LEAKS FIRE OR OTHER DAMAGE TO THE EQUIPMENT BE SURE ONLY TO USE ACCESSORIES MADE BY PANASONIC WHICH ARE SPECIFICALLY DESIGNED FOR USE WITH THE EQUIPMENT AND HAVE THEM INSTALLED BY A PROFESSIONAL IF UNSURE OF INSTALLATION PROCEDURES OR USE ALWAYS CONTACT YOUR DEALER FOR ADVICE AND INFORMATION A The refrigerant R 410A requires strict cautions for keeping the system clean dry and tight B Clean and dry Foreign materials including mineral oils such as SUNISO oil or moisture should be prevented from getting mixed into the system B Tight R 410A does not contain any chlorine does not destroy the ozone layer and does not reduce the earth s protection against harmful ultraviolet radiation R 410
28. er cannot cause any damage to the location in case it drips out the unit e g in case of a blocked drain pipe 5 piping length between the outdoor unit and the indoor unit may not exceed the allowable piping length Refer to 6 3 Example of connection on page 7 6 Select the location of the unit in such a way that neither the discharged air nor the sound generated by the unit disturb anyone 7 Make sure that the air inlet and outlet of the unit are not positioned towards the main wind direction Frontal wind will disturb the operation of the unit If necessary use a windscreen to block the wind 8 Donotinstall or operate the unit on locations where air contains high levels of salt like e g in the vicinity of oceans Refer for further information to the engineering databook Installation manual U 5 48MX3 Urban Multi air conditioner 4PW16235 1C A B The equipment described in this manual may cause electronic noise generated from radio frequency energy The equipment complies to specifications that are designed to provide reasonable protection against such interference However there is no guarantee that interference will not occur in a particular installation It is therefore recommended to install the equipment and electric wires keeping proper distances away from stereo equipment personal computers etc See figure 2 Personal computer or radio Fuse Earth leak detector Remote controller Cool he
29. gen replacement or releasing nitrogen into the piping will create large quantities of oxidized film on the inside of the pipes adversely affecting valves and compressors in the refrigerating system and preventing normal operation NOTE ro Installation tools Make sure to use installation tools gauge manifold charge hose etc that are exclusively used for R 410A installations to withstand the pressure and to prevent foreign materials e g mineral oils such as SUNISO and moisture from mixing into the system The screw specifications differ for R 410A and R 407C Vacuum pump use a 2 stage vacuum pump with a non return valve B Make sure the pump oil does not flow oppositely into the system while the pump is not working 6 1 1 Selection of piping material Foreign materials inside pipes including oils for fabrication must be 30 mg 10 m or less Use the following material specification for refrigerant piping Size determine the proper size referring to chapter 6 3 Example of connection on page 7 Construction material phosphoric acid deoxidized seamless copper for refrigerant Temper grade use piping with temper grade in function of the pipe diameter as listed in below table Pipe O Temper grade of piping material 15 9 O 219 1 1 2H O Annealed 1 2H Half hard The pipe thickness of the refrigerant piping should comply with relevant local and national re
30. gulations The minimal pipe thickness for R 410A piping must be in accordance with the table below Minimal thickness Minimal thickness Pipe Y t mm Pipe Y t mm 6 4 0 80 22 2 0 80 9 5 0 80 28 6 0 99 12 7 0 80 34 9 1 21 15 9 0 99 41 3 1 43 19 1 0 80 6 2 1 Make sure to use the particular branches of piping that have been selected referring to chapter 6 3 Example of connection on page 7 In case the required pipe sizes inch sizes are not available it is also allowed to use other diameters mm sizes taken the following into account select the pipe size nearest to the required size use the suitable adapters for the change over from inch to mm pipes field supply Connecting the refrigerant piping Installation of refrigerant piping is possible as front connection or side connection when taken out from the bottom as shown in the figure Left side connection Front connection Right side connection One outdoor unit installed In case of U 5 16MX3 O N O G A 9 When multiple outdoor units are Front connection Remove the stop valve cover to connect See figure 6 Side bottom connection Remove the knock holes on the bottom frame and route the piping under the bottom frame See figure 6 Front connection Remove the stop valve cover to connect Side bottom connection Remove the knock holes on the bottom frame and route the piping
31. h is gt 90 m be sure to enlarge the pipe diameter of the liquid side and gas side main piping This does not apply to U 5MX3 type U 5MX3 015 9 gt 019 1 U 8MX3 019 1 gt 022 2 U 10MX3 022 2 gt 025 4 U 12 14MX3 028 6 Not Increased U 16 22MX3 028 6 gt 031 8 U 24MX3 034 9 gt Not Increased U 26 34MX3 034 9 gt 038 1 U 36 48MX3 41 3 Not Increased Liquid side U 5MX3 09 5 gt Not Increased U 8 10MX3 09 5 gt 012 7 U 12 16MX3 012 7 gt 015 9 U 18 24MX3 015 9 gt 219 1 U 26 48MX3 019 1 gt 022 2 If the recommended pipe size is not available stick to the original pipe diameter which may result in a small capacity decrease Cautions for installation of multiple outdoor units 1 The piping between the outdoor units must be routed level or slightly upward to avoid the risk of oil detention into the piping side Pattern 1 1 are tl kal 15 2 2 1 To indoor unit 2 Piping between outdoor units Pattern 2 1 gt p 1 To indoor unit Prohibited pattern Change to Pattern 1 or 2 1 To indoor unit U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Installation manual 2 avoid the risk of oil retention to the stopping unit side always 3 Ifthe piping length between the outdoor unit connecting pipe kits or connect the st
32. he installation manual of the central remote controller Use insulated wire for the power cord 7 3 Power circuit and cable requirements A power circuit see table below must be provided for connection of the unit This circuit must be protected with the required safety devices i e a main switch a slow blow fuse on each phase and an earth leak detector U 5MX3 U 8MX3 U 10MX3 U 12MX3 U 14MX3 U 16MX3 U 18MX3 U 20MX3 U 22MX3 U 24MX3 U 26MX3 U 28MX3 U 30MX3 U 32MX3 U 34MX3 U 36MX3 U 38MX3 U 40MX3 U 42MX3 U 44MX3 U 46MX3 U 48MX3 Phase and Recommended Transmission line section frequency Voltage fuses 3N 50 Hz 400 V 16A 0 75 1 25 mm 3N 50 Hz 400 V 32A 0 75 1 25 mm 3N 50 Hz 400 V 32A 0 75 1 25 mm 3N 50 Hz 400 V 32A 0 75 1 25 mm 3N 50 Hz 400 V 50A 0 75 1 25 mm 3N 50 Hz 400 V 50A 0 75 1 25 mm 3N 50 Hz 400 V 63A 0 75 1 25 mm 3N 50 Hz 400 V 63 A 0 75 1 25 mm 3N 50 Hz 400 V 63 A 0 75 1 25 mm 3N 50 Hz 400 V 80 A 0 75 1 25 mm 3N 50 Hz 400 V 80 A 0 75 1 25 mm 3N 50 Hz 400 V 80 A 0 75 1 25 mm 3N 50 Hz 400 V 100A 0 75 1 25 mm 3N 50 Hz 400 V 100A 0 75 1 25 mm 3N 50 Hz 400 V 100A 0 75 1 25 mm 3N 50 Hz 400 V 100A 0 75 1 25 mm 3N 50 Hz 400 V 100A 0 75 1 25 mm 3N 50 Hz 400 V 125A 0 75 1 25 mm 3N 50 Hz 400 V 125A 0 75 1 25 mm 3N 50 Hz 400 V 125A 0 75 1 25 mm 3N 50 Hz 400 V 125A 0 75 1 25 mm 3N 50 Hz 400 V 125A 0 75 1 25 mm When using residual current operated circuit breakers be sure
33. holes we recommend you paint the edges and areas around the edges using the repair paint to prevent rusting B When passing electrical wiring through the knock holes wrap the wiring with protective tape to prevent damage 2 Make sure to perform the piping installation within the range of the maximum allowable pipe length allowable level difference and allowable length after branching indicated 6 3 Example of connection on page 7 3 For installation of the refrigerant branching kit Refnet refer to the installation manual delivered with the kit 4 Pipe connection Only use the flare nuts included with the unit Using different flare nuts may cause the refrigerant to leak NOTE The pressure regulator for the nitrogen released when Wf doing the brazing should be set to 0 02 MPa or less See figure 7 Refrigerant piping Location to be brazed Nitrogen Taping Manual valve Regulator G FP ND Nitrogen 5 Protection against contamination when installing pipes Take measures to prevent foreign materials like moisture and contamination from mixing into the system Installation period Protection method More than a month Pinch the pipe 47 Less than a month e Regardless of the Pinch or tape the pipe period Great caution is needed when passing copper tubes through walls Precautions when selecting branch piping If the overall equivalent piping lengt
34. lied clamping material Wiring between the units Outdoor outdoor Wiring between the units Indoor outdoor Wiring for multi connection only for U 18 48MX3 O a o Plastic bracket B sure to follow the limits below If the unit to unit cables are beyond these limits it may result in malfunction of transmission Maximum wiring length 1000 m Total wiring length 2000 m Maximum No of branches 16 B Maximum number of outdoor units connectable 10 B Up to 16 branches are possible for unit to unit cabling No branching is allowed after branching See figure 13 1 Branch 2 Subbranching Never connect the power supply to unit to unit cabling terminal block Otherwise the entire system may break down Sequential start Make the outdoor unit cable connections shown below The outdoor unit PC board A1P is factory set at Sequential start available Setting the cool heat operation 1 Performing cool heat setting with the remote controller connected to the indoor unit Keep the cool heat selector switch DS1 on the outdoor unit PC board at the factory setting position IN D UNIT See figure 16 1 Cool heat selector 1 Remote controller PUDOR RO board 2 Performing cool heat setting with the cool heat selector 3 Take care of the polarity Connect the cool heat selector remote controller optional to the 4 Use the conductor of sheathed wire 2 wire no polarity A
35. lve Operating the unit with the valve shut will break the compressor Power supply connection When running the unit for the first time after installation be sure to perform a test run following these steps for test run Not performing a test run when the unit is first installed may prevent the unit from operating properly Location of the caution label Cautions for check operation If the system is started within about 12 minutes after the outdoor indoor units are turned ON the compressor will not run and H2P lights up Before starting an operation always verify that the LED display shows the contents of the table in 8 2 Test run on page 16 The system may require up to 10 minutes until it can start the compressor after an operation start This is a normal operation to equalize the refrigerant distribution The check operation does not provide any means of checking the indoor units individually For that purpose perform normal operation using the remote controller after the check operation Installation manual 16 U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Remote controller displays an error Malfunction Installation error code Remedial action The stop valve of Check referring to the table in an outdoor unit F3 6 6 Additional refrigerant charge is left closed UF on page 11 1 a Exchange two of the three phases U1 L1 L2 L3 to make a positive phase outdoor units ar
36. m mixing into the system Charge the refrigerant to the liquid pipe in its liquid state Since R 410A is a mixed refrigerant its composition changes if charged in a state of gas and normal system operation would no longer be assured Before filling check whether the tank has a siphon attached or not How to fill a tank with a siphon attached Fill with the tank upright There is a siphon tube inside so there is no need to turn the tank upside down Other ways of filling the tank Fill with the tank upside down Determine the weight of refrigerant to be charged additionally referring to the item Additional refrigerant charge in How to calculate the additional refrigerant to be charged on page 8 and fill in the amount in the Additional refrigerant charge label attached to the unit After the vacuum drying is finished charge the additional refrigerant in its liquid state through the liquid stop valve service port taking into account following instructions Check that gas and liquid stop valves are closed Stop the compressor and charge the specified weight of refrigerant If the outdoor unit is not in operation and the total amount cannot be charged follow the procedures for additional refrigerant charge shown below Installation manual 10 U 5 48MX3 Urban Multi air conditioner 4PW16235 1C NOTE qu Procedures for charging additional refrigerant U 5 16MX3 outdoor unit installed Se
37. mer MOIS Safety devices input VIR Power module 2 KIM Ne Terminal strip Power supply Terminal strip control A1P Expansion valve electronic type m T Solenoid valve hotgas bypass poc de Solenoid valve out multi pfo Solenoid valve receiver gas intake poo scenes Solenoid valve receiver gas intake kis ae Solenoid valve gas purge YGS Solenoid valve liquid pipe vos 5 Solenoid valve 4 way valve Noise filter ferrite core CE i e Noise filter with surge absorber NM unnm Field wiring ERES Live ME Neutral Connector Wire clamp MERETUR Protective earth screw BEK BLU apostados Blue Brown ORG Orange RED nasse Red WEIT ette White Vess Yellow 7 2 Optional parts cool heat selector cy s Selector switch fan cool heat c ds Selector switch cool heat NOTE NW Use copper conductors only cE B When using the adaptor for sequential start refer to 7 5 Examples on page 13 For connection wiring to outdoor outdoor transmission F1 F2 outdoor indoor transmission F1 F2 outdoor multi transmission Q1 Q2 refer to 7 5 Examples on page 13 For connection wiring to the central remote controller refer to t
38. oor unit one at a time and make sure the corresponding outdoor unit is also running Check to see if cold or hot air is coming out of the indoor unit Press the fan direction and fan strength buttons on the indoor unit to see if they operate properly A lt Cautions for normal operation check gt Once stopping the compressor will not restart in about 5 minutes even if the Run Stop button of an indoor unit in the same system is pressed B When the system operation is stopped by the remote controller the outdoor units may continue operating for further 5 minutes at maximum B If the system has not undergone any check operation by the test operation button since it was first installed an error code U3 is displayed In this case perform check operation referring to 8 2 Test run on page 16 M After the test run when handing the unit over to the customer make sure the electric box lid the service lid and the unit casing are all attached Disposal requirements Dismantling of the unit treatment of the refrigerant oil and eventual other parts should be done in accordance with the relevant local and national regulations 9 CAUTION FOR REFRIGERANT LEAKS Points to note in connection with refrigerant leaks Introduction The installer and system specialist shall secure safety against leakage according to local regulations or standards The following standards may be applicable if local regulation
39. op valve and the piping between outdoor units as between the outdoor units exceeds 2 m create a rise of 200 mm or shown in the figure A or figure B more in the gas line within a length of 2 m from the kit B i 2m 200 2m 1 To indoor unit 2 Piping between outdoor units B l 2m 200 mm 2200 mm 1 2m 2m N 1 To indoor unit 2 Piping between outdoor units AR Unit A Unit B Unit C Not allowed Allowed To indoor unit Oil collects to the stopping outdoor unit Oil collects to the outdoor unit C when the system stops U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Installation manual Example of connection 6 3 8 9 G y E 2 spun JOOPUI 9 G py E Z Shun soopul adid jo aseo ul adid jo aseo ul 8 sun g edid uoueaq jo aseo ul 8 9 G py SUN 9 edid uoueaq jo aseo ul ojduex3 ajduwex3 ejduex3 1 8 Od d8t ZO OZ 1M9S d Z0 0 9 lt 79 722 0 9 gt gt 062 y OD Od LP AZE ZO OcLM86cd ZO 06 gt gt 002 sun jo J9GUNN 2025 Soc sun Joopino jo Jequinu ay eui
40. parts 7 1 Internal wiring Parts table Hefer to the wiring diagram sticker on the unit The abbreviations used are listed below A1P A6P Printed circuit board e Push button switch mode set return wiring check reset SEA Capacitor pa Dip switch E1HC 3HC Crackcase heater FI Fuse 250 V 5 A B A4P a LE ss Fuse 250 V 10 A B A1P a Field fuse HTP BP a Light emitting diode service monitor orange Pilot lamp service monitor green K1M 3M Compressor contactor M1C M3C K1R 15R Magnetic relay ET secet Reactor M1C 2C 3C Motor compressor MF ree Motor fan ss Switching power supply RR Na Phase reversal detect circuit ils es x Resistor current limiting 3 4 4 Resistor R10 R138 Resistor current sensor All sasn Thermistor fin A2P Thermistor air A1P 4 Merc Thermistor suction 1 3 Thermistor discharge Thermistor coil deicer nidos Thermistor coil outlet gio Pee Thermistor liquid pipe receiver Thermistor oil Pressure sensor high U 5 48MX3 Urban Multi air conditioner 4PW16235 1C Installation manual S1NPL Pressure sensor low S1PH 3PH Pressure switch high 2 UR Current sensor A5P A6P HB 5 Transfor
41. r itself Earth leak detector which are especially for protecting ground faults should be used in conjunction with main switch or fuse for use with wiring This unit has a negative phase protection circuit If it operates only operate the unit after correcting the wiring Examples System example See figure 11 O a BO N Field power supply Main switch Earth leak detector Fuse Cool heat selector Remote controller Power supply wiring sheathed cable Transmission wiring sheathed cable Field line connection L1 L2 L3 N phase of the power cord should be clamped to the plastic bracket using field supplied clamp material The green and yellow striped wrapped wires should be used for grounding See figure 10 1 Power supply 400 V Three phase 2 Fuse 3 Grounding wire 4 Earth leak detector 5 Attach insulation sleeves 6 Power supply terminal block 7 Ground wire 8 Clamp the ground wires along with the power wires using field supplied clamps 9 Clamp each power wire separately to the plastic brackets using field supplied clamps 10 When wiring do not allow the ground wires to contact the compressor lead wires If the wires contact each other adverse effects may occur to other units 11 When connecting two wires to one terminal ensure that the crimp style terminals face with each other back to back Moreover make sure that the wire of the smaller gauge is located above
42. rigerant in the refrigerant system lt maximum concentration level kg m size m of smallest room in which there is an indoor unit installed If the result of the above calculation exceeds the maximum concentration level then make similar calculations for the second then third smallest room and so until the result falls short of the maximum concentration 4 Dealing with the situations where the result exceeds the maximum concentration level Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be necessary to revise the system Please consult your supplier Installation manual 18 U 5 48MX3 Urban Multi air conditioner 4PW16235 1C NOTES 4PWEN16235 1C
43. s are not available The Urban Multi System like other air conditioning systems uses R 410A as refrigerant R 410A itself is an entirely safe non toxic non combustible refrigerant Nevertheless care must be taken to ensure that air conditioning facilities are installed in a room which is sufficiently large This assures that the maximum concentration level of refrigerant gas is not exceeded in the unlikely event of major leak in the system and this in accordance to the local applicable regulations and standards Maximum concentration level The maximum charge of refrigerant and the calculation of the maximum concentration of refrigerant is directly related to the humanly occupied space in to which it could leak The unit of measurement of the concentration is kg m the weight in kg of the refrigerant gas in 1 m volume of the occupied space Compliance to the local applicable regulations and standards for the maximum allowable concentration level is required According to the appropriate European Standard the maximum allowed concentration level of refrigerant to a humanly space for R 410A is limited to 0 44 kg m CIT 1 direction of the refrigerant flow 2 room where refrigerant leak has occurred outflow of all the refrigerant from the system Pay special attention to places such as a basements etc where refrigerant can stay since refrigerant is heavier than air U 5 48MX3 Urban Multi air conditioner 4PW16235
44. stop valve to the following status Otherwise the piping may burst due to liquid seal Liquid line Gas line stop stop valve valve Oil equalizing line stop valve Open Open Open Additional refrigerant charge procedure To learn the system settings for additional refrigerant charging refer to the Service Precaution label attached on the back of the electric box lid in the outdoor unit 7 FIELD WIRING A All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations The field wiring must be carried out in accordance with the wiring diagrams and the instructions given below Be sure to use a dedicated power circuit Never use a power supply shared by another appliance This product s reversed phase protection detector only works when the product started up The reversed phase protection detector is designed to stop the product in the event of an abnormalities when the product is started up Replace two of the three phases L1 L2 and L3 during reverse phase protection circuit operation Reversed phase detection is not performed while the product is operating If there exists the possibility of reversed phase after an momentary black out and the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase can break the compressor and other
45. sure to check that there is no gas leak When you keep on tightening the flare nut with a spanner there is a point where the tightening torque suddenly increases From that position further tighten the flare nut within the angle shown below Further tightening Recommended Pipe size angle arm length of tool 09 5 3 8 60 902 200 mm O12 7 1 2 30 60 250 mm 215 9 5 8 30 60 300 mm 6 5 Pipe insulation After finishing the leak test and vacuum drying the piping must be insulated Take into account the following points OD 0 gt Make sure to insulate the connection piping and refrigerant branch kits entirely Be sure to insulate liquid and gas piping for all units and oil equalizing piping only for U 18 48MX3 Use heat resistant polyethylene foam which can withstand a temperature of 70 C for liquid side piping and polyethylene foam which can withstand a temperature of 120 C for gas side piping If you think the temperature and the relative humidity around the cooling pipes might exceed 30 C and RH 80 reinforce the insulation of the cooling pipes at least 20mm thick Condensation might be formed on the surface of the insulation If there is a possibility that condensation on the stop valve might drip down into the indoor unit through gaps in the insulation and piping because the outdoor unit is located higher than the indoor unit this must be prevented by sealing up the
46. tdoor unit multi connection piping kit For R 410A only Always use an appropriate kit dedicated for your system Number of outdoor units connected 2 3 CZ 32PJ1PQ CZ 48PJ1PQ To select an optimum refrigerant branching kit refer to 6 Refrigerant piping on page 4 1 4 Technical and Electrical specifications Refer to the Engineering Data Book for the complete list of specifications 2 MAIN COMPONENTS For main components and function of the main components refer to the Engineering Data Book 3 SELECTION OF LOCATION This unit both indoor and outdoor is suitable for installation in a commercial and light industrial environment If installed as a house hold appliance it could cause electromagnetic interference The inverter units should be installed in a location that meets the following requirements 1 Thefoundation is strong enough to support the weight of the unit and the floor is flat to prevent vibration and noise generation 2 space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available Refer to figure 1 and choose one of the possibilities In case of an installation site where only the sides A B have obstacles the wall heights have no influence on any indicated service space dimensions ABCD Sides along the installation site with obstacles Suction side 3 here is no danger of fire due to leakage of inflammable gas 4 Ensure that wat
47. ter installing the interconnecting wires inside the unit wrap them along with the on site refrigerant pipes using finishing tape as shown in figure 20 Liquid pipe Gas pipe Interconnecting wiring Insulator Finishing tape For the above wiring always use vinyl cords with 0 75 to 1 25 mm sheath or cables 2 core wires 3 core wire cables are allowable for the cooler heater changeover remote controller only In case of U 18 48MX3 The interconnecting wiring between the outdoor units in the same pipe line must be connected to the Q1 Q2 Out Multi terminals Connecting the wires to the F1 F2 Out Out terminals results in system malfunction The wiring for the other lines must be connected to the F1 F2 Out Out terminals of the P board in the outdoor unit to which the interconnecting wiring for the indoor units is connected The base unit is the outdoor unit to which the interconnecting wiring for the indoor units is connected The interconnecting wiring between the outdoor units must be 30 See the paragraph Fixing field line connection on page 14 A Be sure to keep the power line and transmission line apart from each other Be careful about polarity of the transmission line B Make sure that the transmission line is clamped as shown in the figure in Field line connection in chapter 7 5 Examples on page 13 Check that wiring lines do not make contact with refrigerant piping B Firmly close
48. ti air conditioner U 5 48MX3 4PW16235 1C 04687 891 9 2z0 oxev vso oxov t L oxor H Ls 52 0 02 w 01 9 60 UlOLXG 60 9 6 90 9 4 01 960 9 U OLX6 SLO 9 90 9 uorxe69 p se y pue S iun y Joy edid pue edid y9ue q 10 ojduex3 XN8Sr TE 8 1e ezis Duidid 60 Ie ezis 90 OX JO JUNOWY 2221018 ezis jo 90 ezis Buldid 1932916 EXN8L N 10 JUO Burzijenba 110 2210 9800 9 01 co XINO HY L 6LO 8 pinb17 eTe 2215 JoopinO G6O 100pino pue 100pino 2 eo co OGc 62 00 6910 961 59 960 0S 0 edid pinbr ad 9215 JOOPUI JO ezis y se OWES ay 15 pun 0 uonoeuuoo 12 10 ezis edig pue yy
49. to the wiring diagrams and according to local and national regulations 3 Pipe sizes and pipe insulation Make sure that correct pipe sizes are installed and that the insulation work is properly executed 4 Additional refrigerant charge The amount of refrigerant to be added to the unit should be written on the included Added Refrigerant plate and attached to the rear side of the front cover 5 Insulation test of the main power circuit Using a megatester for 500V check that the insulation resistance of 2 MQ or more is attained by applying a voltage of 500 V DC between power terminals and earth Never use the megatester for the transmission wiring 6 Installation date Be sure to keep record of the installation date on the sticker on the rear of the upper front panel according to EN60335 2 40 Check the LED on the P board A1P in the outdoor unit to see if the data transmission is performed normally Micro computer operation Ready monitor Page Error Led display Default 3 status before delivery HAP H2P One outdoor unit installed Individual parent child noise Cooler heater changeover Bulk Bulk Low Demand Multi Master When station multiple outdoor Sub unit station 1 installed Sub Station 2 LED display OFF O Q Blinking 9 The base parent unit is the outdoor unit to which the interconnecting wiring for
50. top valve When connecting the flare nuts apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first Stop valve operation procedure Use ester oil or ether oil Introduction Confirm the sizes of the stop valves connected to the system 1 Piping union referring to the table below 2 Spanner 3 Flare nut U 8MX3 U 10MX3 U 12MX3 U 14MX3 U 16MX3 Liquid line stop 09 5 297 4 Torque wrench valve B When loosening a flare nut always use two wrenches in Gas line stop 015 9 022 20 025 4 combination When connecting the piping always use a spanner The model U 8MX3 supports on site piping of 19 1 by the accessory pipes and torque wrench in combination to tighten the flare nut Th U 12 16MX site piping of 228 6 by th 1 42 See the following table for tightening torque Applying too much torque may cause the flares to crack After all the piping has been connected use nitrogen to perform a gas leak check Tightening Pipe size Torque Flare shape 29 5 32 7 39 9 12 8 13 2 12 7 49 5 60 3 16 2 16 6 015 9 61 8 75 4 19 3 19 7 U 5 48MX3 Installation manual Urban Multi air conditioner 4PW16235 1C N OTE You must use a torque wrench but if you are obliged to install the unit without a torgue wrench you may follow the installation method mentioned below After the work is finished make
51. x30 Protector BO DO 9 UNPACKING AND PLACING THE UNIT Remove the four screws fixing the unit to the pallet B Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise M Fasten the unit in place using four anchor bolts M12 B Make sure the base under the unit is extended more than 765 mm behind the unit B he unit must be installed on a solid longitudinal foundation steelbeam frame or concrete as indicated in figure 4 Model A B U 5MX3 635 497 U 8 10MX3 930 792 U 12 16MX3 1240 1102 A Do not use stands to support the corners See figure 5 X Not allowed Allowed 4 INSPECTING AND HANDLING THE UNIT At delivery the package should be checked and any damage should be reported immediately to the carrier claims agent Prepare a water drainage channel around the foundation to drain waste water from around the unit B the unit is to be installed on a roof check the strength of the roof and its drainage facilities first B f the unit is to be installed on a frame install the waterproofing board within a distance of 150 mm under the unit in order to prevent infiltration of water coming from under the unit PRECAUTION Block all gaps in the holes for passing out piping and wiring using sealing material field supply Small animals may enter the machine Example passing piping out through the
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