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Installation Outdoor unit

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1. ___ Refrigerant pipe connecting port Liquid side flare connection 015 9 315 di 275 Refrigerant pipe connecting port gas discharge side flare connection 019 0 F 68 60 114 11 Installation Outdoor unit Multiple installation on the rooftop If the outer wall is higher than the outdoor unit If a hole can be made in the wall 81 N N N TI A UA S Front side b I UNION ss GR NO gt gt gt at gt t gt 10 gt 20 gt 20 gt 20 gt 20 Discharge duct 1 Set an aperture ratio so that suction air volume Vs from the hole becomes 1 5 m s or less 2 Height of discharge duct HD h o o o m l If a hole cannot be made Hole in wall Y 8 RM jv gt z N N N V I T E AW LZ ES E NL S Front side l ENT Y NN ia a A 2 pt gt gt gt 10 gt 20 gt 20 gt 20 gt 20 J Discharge duct E BS Vs Note All dimensions are in mm Base 500 1000 HD Set a base with 500 to 1000 mm height 2 Height of discharge duct HD h
2. In this case check Is the temperature difference every indoor unit s correct between return air and operation outlet air simultaneously Is the power supply voltage Set the correct 220 240 V temperature to the Is the operating current correct highest level Is the operating pressure correct Note When the outdoor temperature rises above 25 heating operation will cease 38 Trial run Circuit test procedure These systems have a feature which enables them to check that the wiring and piping connections are aligned with each other This is carried out by allowing refrigerant to flow to one indoor unit at a time and monitoring that indoor unit s coil sensor for a corresponding drop in temperature Each indoor unit is tested in turn and where two multi controllers are installed each multi controller is tested in turn This test would normally be used at the commissioning stage Procedure for initialising the circuit test Turn the power off Ensure the capacity codes are set correctly capacity switches set to 0 are not tested Put the outdoor display switches SW1 and SW2 to 9 and multi controller s display switch to 6 Turn the power back on Set all the remote controllers to cool mode and 29 C Press the on off button to start all the indoor units the outdoor LEDs show 1020 Press the outdoor unit switch SW3 and hold for 3 seconds The system is now in self testing a
3. 12 Installation Outdoor unit If the outer wall is lower than the outdoor unit 1 line installation 81 PECE E TZT UU 3 Front side eo SS 1 210 x20 2200 320 gt E ff N N V V V y 1 y y 3 7H A 2 2 2 2 2 o Tm iE Q e Al AL Front side d V 1 ff V V V y y Y ji T Ir E N b 5 o e b ete sete ete gt 300 A ZINIZIN V A E Tia NAL Front side Y TAL N yl P F V mei Front side gt 10 gt 20 gt 20 gt 20 gt lt 800 When refrigerant piping is routed from the front of the unit di
4. gt 310 mm 700 mm 15 x 20 mm slot When routing the refrigerant piping through the base the fixing height of the base two divided foundations must be 500 mm or more 2 2 500 mm Refrigerant piping 3 Correct foundation mounts for supporting the outdoor unit 10 Installation Dimensional drawings Outdoor unit 5 7 z Y ffs 3 90 Grounding part of bottom plate d O 3 755 790 630 if c o E 8 E AL E i 90 Grounding part of bottom plate Fixing bolt pitch n 700 Foundation dimensions 990 750 y y 5 il n 2 i 90 cr E ej TA Cl X 29 CX XL C JC X JI an pe va N CI AX X 2 RE EEES an an en E Jc XC D C X JE v d va C AC XC E o OK T 2 qe f J S am 1582 l 700 601 Oe Po AE UL 568 Knock outs on Eod both sides of unit 9 920 cable gland knock outs 4 60 x 150 slot Slot pitch for transport All dimensions in mm Details of piping connections Refrigerant pipe connecting port suction side braze connection 2228 6
5. e g charged amount 10 kg Room A Room B Room C Room D Room E Indoor unit For the amount of charge in this example The possible amount of leaked refrigerant gas in rooms A B and C is 10 kg The possible amount of leaked refrigerant gas in rooms D E and F is 15 kg 45 Troubleshooting Cautions on refrigerant leakage Note 2 The standards for minimum room volume are as follows 1 No partition shaded portion 2 When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas i e an opening without a door or an opening 0 15 or larger than the respective floor spaces at the top or bottom of the door Outdoor unit Refrigerant tubing RANA 2 m m 3 If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected the smallest room becomes the object But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded the volume of the next smallest room becomes the object Indoor unit Refrigerant piping Outdoor unit Indoor unit Mechanical ventilation device gas leak detector Note 3 The minimum indoor floor space compared with the amount of refrigerant is roughly as Range below the shown when the ceiling is 2 7 m high density limit of 0 15 kg m countermeasures not nee
6. A eee 27 Adding the refrigerant charging the system 28 Calculating the additional refrigerant required ooooonococccccccnncccananccnncnonnnnnccnonnnnnnnnancncnnnnnnnnns 29 E A n 30 Electrical wiring General wiring system overview oooooocccccncnnocccnccccnnnonnnnncncnnnnnnnnnnnnnnnnnnnnnncnnnnnnnnnnnnnnnnnnnnnnnnnns 31 Connecting the power source cable and control cable 32 Wiring Detween Units 33 Installation Outdoor unit Transportation of the outdoor unit Fork Lift Front Access insert the forks into the slots on the fixing legs Side Access see diagram Front Access Side Access Fixing leg Crane e Check the suitability of the lifting rope see table Secure lifting rope through transportation slot Protect the unit where rope contact could scratch or deform it Protection Model Number Weight MAR F105HTM8 PE 285 kg Rope Protection Transportation slots Installation Outdoor unit Installation of outdoor unit 1 Align the outdoor units at intervals of 20 mm or more Fix the outdoor units with M12 anchor bolts 4 positions per unit Anchor bolt with 20 mm length is suitable rh i gt M12 anchor bolt 4 positions per unit
7. RAV 134TUH 1 PE RAV 164TUH 1 PE Cassette 2 way AUN RAV 104SBH PE 2 Built In Horizontal RAV 164BH PE RAV 264BH PE RAV 364BH PE RAV 464BH PE 00A RAV 134CH CHR PE RAV 164CH CHR PE RAV 264CH CHR PE RAV 364CH CHR PE RAV 464CH CHR PE Ceiling Suspended 0 0 RC o High Wall RAV 105KH E RAV 135KH E RAV 165KH E RAV 265KH E Oo RAV 104NH PE RAV 134NH PE RAV 164NH PE RAV 264NH PE Built In Vertical RAV 164SH SHR PE 4 RAV 264SH SHR PE 6 Floor Mounted Installation Contents Outdoor unit Transportation of the outdoor unit ooooocccccnnnccccococcccnonanoncnonnnnnnnnnnnnncnnnnnnnnnnnnnnncnnnnnnnnnnnnnncnanns 9 Installation coro oO acsi ctun cd ic ecu me 10 Dimensional drawings outdoor unit sss nennen nnne 11 Multiple installation on the rooftop o iia eue 12 Multi controller acri ER 14 Interface kit al o M AM RI NR 16 Piping Connecting refrigerant pipes s s eoe udo a pu hte ue A in d 17 connections RR E mE 19 Gonnection to OUTDOOR roe or aene reb REB E UTER EA 20 Permissible length and 22 AMI A 26 Leak position check air
8. Interface kit Precautions Avoid installation in the following locations A Where there is a danger of flammable gas leakage A Where there is a danger of water coming in contact with the dual interface N Where the mounting surface is flammable Installation and service space For internal use only Ensure that there is sufficient space around the dual interface for installation and servicing 16 Installation Piping WARNING During installation if the refrigerant gas leaks ventilate the room After installation check for gas leakages If refrigerant gas comes into contact with fire noxious gas may result Connecting refrigerant pipes 1 access the refrigerant piping connections and electrical wiring terminals remove the 7 x M5 securing bolts in the front panel To remove the panel lift it up and away from its hanging tabs see diagram 2 The refrigerant pipes can be routed forwards downwards or sideways 3 If the pipes are routed forwards make sure they exit through the piping wiring panel remove knock out section and allow at least 500 mm between the outdoor unit and the main pipe connecting it to the indoor unit This is for servicing access Replacing the compressor for example requires a space of at least 500 mm 4 Ifthe pipes are routed downwards remove the knock out section in the baseplate of the outdoor unit This will enable access They can then be conn
9. T pieces multi controller and indoor units As shown in the above tables ensure the size of the main gas pipe between the T piece and the outdoor unit must be the next size up compared with the pipe size between the T piece and the multi controllers Ensure any unused circuits on the multi controllers are sealed with brazed cap Horizontal gt Horizontal Inclined Lv Inclined Main pipe Sub pipes from the to the multi outdoor unit controllers Lt 500 mm or more 19 Installation Piping Connection to outdoor unit The refrigerant pipes are connected inside the outdoor unit The pipes can be routed forwards downward or sideways Do not use a liquid sight glass or incorporate an oil trap in vertical pipework A dryer is incorporated into the piping of the outdoor unit Cleanliness is essential keep the piping securely sealed at all times throughout the installation Suction gas valve brazing Liquid pipe valve position Gas discharge valve position Gas suction valve position When brazing position a wet cloth around the suction valve to ensure the temperature remains below 120 C otherwise equipment damage may result Pipework routed forwards If pipework is routed forwards ensure they exit through the piping and wiring panel remove knock out section first Cut the connecting section at the end of t
10. To retrieve fault codes from the outdoor unit ensure rotary switch SW1 is set to position 2 and SW2 is set to position 0 To retrieve fault codes from the multi controller ensure the display switch is set to position 1 43 Troubleshooting Fault codes A The dual interface has a LED which is used to display fault codes see diagram below This then can be used to trace the system error A The table below shows the meaning of the faults which can be displayed If two or more faults are detected then only the fault with the highest priority will be displayed Fault description Number Priority of flashes Power supply sag temporary voltage drop 1 1 Communication type error DSW1 setup incorrect 2 2 Received error from M C 1 3 3 Received error from M C 2 4 4 Received error from outdoor unit 5 5 None 6 6 None 7 7 8 8 Error receiving signal from outdoor unit A For full details please refer to the service manual O om o swt Fault Display LED 44 Troubleshooting Cautions on refrigerant leakage Check of density limit The room in which an air conditioning unit is to be installed requires a design such that should there be a refrigerant leak the density of the gas will not exceed a set limit The refrigerant R407C which is used in the system is safe without the toxicity or combustibility of ammonia However since it is an asphyxiant it
11. a i Reducer Indoor C Indoor D i L1 i gt 2 T piece i L2 o F Indoor E Sub pipe Outdoor unit Indoor F Multi 1 pe controller 2 i Indoor G IK Indoor H SS y Reducing i T piece Indoor d K2 Indoor J EA gt Multi Main pipe Z Indoor Indoor L Maximum piping lengths actual No of Main pipe X Y Z Sub pipe Branch pipe Max total pipe multi controllers 3 2m 70m 1m 15m 2m 30m 100m Main pipe longest sub pipe lt 70 m Permissible piping length Pipe size H1 Maximum height difference between lt 15m Gas suction pipe Liquid pipe Gas discharge pipe multi controller and indoor unit A A H2 Maximum height difference between 15m 0 28 6 15 9 19 1 19 1 12 7 15 9 AL Maximum piping difference between lt 10m multi controller and indoor unit L2 L1 AK Maximum piping difference between lt 10m sub pipes K2 K1 AM Maximum piping difference between lt 10m main pipes Y and Z M2 M1 L longest pipe shortest pipe 24 Installation Piping Four Multi Controller system Main pipe X Main pipe Y Sub pipe Branch pipe gt Muti bt mal i Eee L2 o 1 A Indoor F e ma Ed 3 Outdoor unit Multi as L i Reducing piece Main pipe Z controller 4
12. check A Trial run Y Problem solving Y Trial complete e Check the basic installation work by filling out checklist 1 Use checklist 2 to conduct the trial run test record the results If problems occur correct them and rerun the test If problems still persist refer to the service manual for full details 36 Trial run Checklist 1 Is the installation work finished correctly Indoor unit Registered Check result model name code number 1 Is the capacity number switched Unit A on the multi controller PCB 1 Unit B registered correctly to each Unit C indoor unit Unit D Unit A 2 Unit B Unit C Unit D Unit A 3 Unit B Unit C Unit D M C Unit A 4 Unit B Unit C Unit D 2 Are there any wrong connections of the refrigerant piping control wiring between indoor units and multi controller 3 Are there any wrong connections of both control wiring between indoor unit and multi controller and multi controller and outdoor unit 4 Is the circuit breaker installed Breaker capacity A 5 Is the breaker capacity adequate 6 Is there any wrong wiring of power cable Power cable mm 7 15 the wire size correct Control wire mm 8 Is the wiring correct between distribution board and outdoor unit 9 Is the groundin
13. compressor frequency A Current measurement i If the current is within 15 of the value given in both heating and cooling modes the system is operating correctly at maximum compressor frequency ii The current varies as follows depending on the operating conditions When the current is higher than the standard current O High indoor outdoor temperatures Poor heat dissipation of outdoor unit during cooling When the current is lower than the standard current D Low indoor outdoor temperatures Gas leak insufficient refrigerant A Pressure measurement i The pressure levels established 15 minutes after start up are shown below dry bulb temperatures C with the unit operating at maximum compressor frequency Cooling High pressure 16 20 kg cm or 1 57 1 96 MPa Indoor 18 to 32 Low pressure 3 5 5 5 kg cm or 0 34 0 54 MPa Outdoor 25 to 35 Heating High pressure 15 21 kg cm or 1 47 2 06 MPa Indoor 15 to 25 Low pressure 3 0 4 5 kg cm or 0 29 0 44 MPa Outdoor 5 to 10 ii The operating conditions of the system will effect the pressures in the system Al The flashing of the remote controller s operation lamp does not indicate a failure A If the total capacity code allowable is exceeded the preheat defrost will flash at 4 second intervals on the LCD of the remote controller This does not indicate a failure however it should be corrected Fault codes A The r
14. poses the risk of suffocation if its density should rise excessively Suffocation from leakage of R407C is almost non existent With the recent increase in the number of high density buildings however the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space individual control energy conservation by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners If a single unit of the multi air conditioner system is to be installed in a small room select a suitable model and installation procedure so that if the refrigerant accidentally leaks out its density does not reach the limit and in the event of an emergency measures can be taken before injury occurs In a room where the density may exceed the limit create an opening with adjacent rooms or install mechanical ventilation combined with a gas leak detection device The density is Total amount of refrigerant kg Min volume of the indoor unit installed room m lt density limit kg m The density limit of R407C which is used in multi air conditioners is 0 15 kg m Note 1 If there are 2 or more refrigerating systems in a single refrigerating device the amounts of refrigerant should be as charged in each independent device i Outdoor unit e g charged amount 15 kg
15. unit as this could damage components inside 14 Installation Multi Controller Installation Installing 6 10 mm hanging bolts 4 pieces Install the hanging bolts at intervals shown in the following figure Use the 10 mm hanging bolts to be locally procured Ceiling preparation The actual procedure differs according to the structure Consult your builder or whoever was responsible for the interior of the house building 1 Remove part of the suspended ceiling In order to ensure that the ceiling is kept perfectly horizontal and to prevent the ceiling from vibrating the ceiling framework must be reinforced 2 Cut and remove part of the ceiling framework 3 Reinforce the ends of the ceiling framework where sections have been removed Some piping and wiring connections must be made in the ceiling after the unit has been suspended After selecting where the unit will be installed decide on the direction of the piping and electrical connections How to install the hanging bolts Reinforcing i Ed bar SES ti Foundation Knife shaped Sliding bracket bolt bracket Installation on a newly installed concrete slab Foundation bolt for Use insert brackets or foundation bolts for the installation handibuithe piping Installation on an existing concrete slab E Use hole in anchors hole in plugs or hole in bolts for the installation Suspension Refer to the external vie
16. valve rod before applying pressure For all valves For each refrigerant line apply pressure gradually at the discharge gas liquid and suction gas sides Never use oxygen or a flammable noxious gas Low High pressure pressure gauge gauge Packed valve fully closed gas suction side Detailed drawing of packed valve Gauge manifold Service port at gas discharge side To 2 manifold Service port at Service port gas suction side Flare Nitrogen gas connection 1 Packed valve fully closed liquid side Service port at liquid side Packed valve fully closed gas discharge side To detect a large leakage Step 1 0 3 MPa 3 kg cm G Apply pressure for 3 minutes or more Step 2 1 5 MPa 15 kg cm G Apply pressure for minutes or more To detect a fine leakage Step 3 3 0 MPa 30 kg cm G Apply pressure for 24 hours Check for a reduction in pressure If there is no reduction in pressure this is acceptable If there is a reduction in pressure check for a leakage Note If there is a difference of ambient temp between when the pressure was applied and 24 hours later then pressure could change by approx 0 01 MPa 0 1 kg cm G so correct the pressure change 26 Installation Piping Leak position check If a pressure drop is detected check for leakage at connecting points Locate the leakage by listening feeling using foaming agent etc then rebraze or
17. 05HTM8 PE Suction gas 028 6 228 6 Discharge gas 019 1 19 1 Liquid 015 9 015 9 2 4 units MAR F105HTM8 PE Suction gas 028 6 019 1 028 6 Discharge gas 919 1 015 9 19 1 Liquid 015 9 12 7 115 9 Gas Liquid Indoor unit 10 13 16 26 36 46 10 1 16 26 36 46 Branch pipe sizes 12 7 15 9 Y19 1 06 4 99 5 Multi controller pipe sizes 219 1 12 7 Example Indoor unit RAV 264CH PE 26 18 Installation T piece connections Piping The main T piece should be equal dimensions in all three positions for example 12 7 x 12 7 x 12 7 mm The sub T pieces should be a reducing type see diagram below Outdoor unit Suction Discharge Liquid gas gas B A B A B MAR F105HTM8 PE 28 6 19 1 19 1 15 9 15 9 12 7 Note There must be at least 500 mm of straight pipe before any T piece this is to ensure equal distribution Header design 4 way Equal T piece 500 mm Reducing T pieces 500 mm gt Header design 3 way Equal T piece OA Reducing T piece Reducer 500 mm Keep the T piece horizontal to the multi controller if necessary bending the sub piping Secure the T piece to a wall or joist in the ceiling Ensure a minimum of 500 mm of straight piping before any T piece This is to ensure equal distribution Ensure correct pipe dimensions are used between outdoor unit
18. Jnitgaro Freire UM 4 SAN ES 8 Maal ar o E EE 36 Mc 43 ENVIOS 47 page 49 pour lire le manuel d installation en francais Die deutsche Installationsanleitung finden Sie auf Seite 95 Por favor vaya a la p gina 141 para seguir las instrucciones del manual de instalacion en lengua espa ola Il manuale d installazione italiano a pagina 187 Zie bladzijde 233 voor de Nederlandse Installatievoorschriften See page 279 for the Portuguese Installation Instructions See page 325 for the Greek Installation Instructions Introduction Contents POCA ION St lio EE 5 Operating pp id edt A A A 6 Metric Imperial pipe conversion cocoononoccccnnnccnonnnnnccnnnnnnnnnnncncnnnnnnnnnnnnnn cnn nnnnnnn nn cnn 6 COMPOMC UNG feist saeco 6 Introduction Precautions Please read these instructions carefully before starting the installation This equipment should only be installed by suitably trained operatives In all cases ensure safe working practice Observe precautions for persons in the vicinity of the works Ensure that all local national and international regulations are satisfied D pep Pe Check that the electrical specifications of the unit meet the requirements of the site Carefully unpack the equipment check for damage or shortag
19. Maximum piping lengths actual No of Main pipe X Y Z Sub pipe Branch pipe Max total pipe multi controllers 4 2m 70m 1m 15m 2m 30m 100m Main pipe longest sub pipe x 70 m Permissible piping length Pipe size H1 Maximum height difference between 15m Gas suction pipe Liquid pipe Gas discharge pipe multi controller and indoor unit A A A H2 Maximum height difference between lt 15m 28 6 15 9 19 1 indoor units 19 1 12 7 15 9 AL Maximum piping difterence between lt 10m multi controller and indoor unit L2 L1 AK Maximum piping difference between lt 10m sub pipes K2 K1 AM Maximum piping difference between lt 10m main pipes Y and Z M2 M1 L longest pipe shortest pipe 25 Installation Piping Airtight test A Carry out an airtight test after the refrigerant piping is complete For an airtight test connect a nitrogen gas bottle as shown and apply pressure use oxygen free nitrogen OFN A The pressure test must be completed before supplying power to ensure that the multi controller PMVs pulse modulating valves are open A The test must be completed with the indoor units multi controllers and outdoor unit connected Be sure to carry out the test from the service ports of the packed valves at the discharge gas liquid and suction gas side Keep all of the valves at discharge gas liquid and suction gas sides fully closed Nitrogen may enter the cycle of the outdoor unit Therefore retighten the
20. Selected valve is fully closed for 3 PMV D 2 minutes 2 minutes 42 Troubleshooting Self diagnostic function Remote controller fault code Multi controller fault code Outdoor fault code No communication signal between Interface PCB and IPDU gt 04 No communication signal between Interface PCB and IPDU eJ No communication signal between Interface PCB and IPDU 04 No communication signal between M C and O D No communication signal between M C and O D No communication signal between I D and 00 Drain pump fault 1 0 unit OC TA sensor fault 0 TC sensor fault 08 Reverse TC temperature change 09 No TC temperature change 11 Motor short circuit 12 Indoor PC board short circuit 8A Multi Controller PCB error b5 External input display fault 88 Communication error between indoor unit and Multi Low level refrigerant leak if RBC RD1 PE fitted Controller b6 External interlock display fault 80 ThA sensor fault 80 ThA sensor fault High level refrigerant leak if RBC RD1 PE fitted 81 ThB sensor fault 81 ThB sensor fault 97 Central management communication short circuit 82 ThC sensor fault 82 ThC sensor fault 98 Central management address set up fault 83 ThD sensor fault 83 ThD sensor fault 99 No communication 1 0 to R C 84 ThX sensor fault 84 ThX sensor fault Ob Dra
21. ause a shortage of refrigerant recover the refrigerant from the system and recharge with new refrigerant to the total refrigerant charge 28 Installation Piping Additional refrigerant One Multi Controller Outdoor Indoor M C L1 L3 Two Multi Controllers Indoor Outdoor Table 1 Branch pipes TEE RAV 10 0 030 kg m RAV 13 0 030 kg m RAV 16 0 030 kg m RAV 26 0 045 kg m Indoor RAV 36 0 045 kg m RAV 46 0 045 kg m Three Multi Controllers Outdoor Example RAV 464CH PE gt RAV 46 Four Multi Controllers Indoor Outdoor M C L1 Main pipe X Y Z 7 L2 L3 L2 Sub pipe y L3 Branch pipe Pipe Additional gas metre Additional gas MAR F105 main pipe L1 X Y Z minus 2 m 0 19 kg m 1st longest sub pipe L2 minus 1 m X 0 125 kg m 2nd longest sub pipe L2 minus 1 m X 0 125 kg m 1st longest branch pipe L3 minus 2 X Refer to Table 1 2nd longest branch pipe L3 minus 2 m X Refer to Table 1 3rd longest branch pipe L3 minus 2 m X Refer to Table 1 5 4th longest branch pipe L3 minus 2 m X Refer to Table 1 5th longest branch pipe L3 minus 2 m X Refer to Table 1 6th longest branch pipe L3 minus 2 m X Refer to Table 1 7th longest branch pipe L3 minus 2 m X Refer to Table 1 8th longest branch pipe L3 minus 2 m X Refer to Table 1 Total additional gas charge z kg 29 Installation Piping H
22. ded Range above the density limit of e 0 15 kg m countermeasures needed Min indoor floor space 3 3 Total amount of refrigerant kg 46 Environmental Precaution for refrigerant leakage A This air conditioning system contains 407 refrigerant gas We recommend that the installer should compare the total amount of refrigerant contained in the system with the air volume of each of the rooms in which an indoor unit has been installed This practice is of particular importance when installing a system with a large refrigerant volume Using these figures calculate the worst case refrigerant density using the total refrigerant charge in the unlikely event of a leak If the resultant density level exceeds that of the standard then either a ventilation system or alarm system or both must be installed The above procedure must be completed in accordance with local national an international standards codes of practice and statutory requirements Product maintenance A To minimise the chances of environmental damage and to ensure the efficient operation of the unit it is recommended to have the air conditioner periodically checked and serviced by a qualified engineer Product disposal A Please dispose of the air conditioner unit in an environmentally responsible manner Recycling is the preferred disposal method A When disposing of an air conditioner
23. eat insulation 30 Provide heat insulation on the refrigerant piping on both the liquid side and the gas side separately and ensure that joints in the insulation are vapour sealed Since the temperature of the piping on the gas side increases during heating operations the heat insulating material used must be able to withstand temperatures of more than 120 C Liquid pipe Gas pipe pe Thermal insulator Thermal insulator Thermal insulator Gas pipe Liquid pipe E Insulate the pipework as shown in the diagram below slide insulation up to the insulation on the multi controller and seal joint with heat insulating tape Heat insulating tape Pipe insulation butted together Brazed joint In the situation where high ceiling ambient temperatures are present thicker pipe insulation should be used Installation Electrical wiring Precautions This guide should be read and utilised in conjunction with official published regulations and codes of practice be they local national or international Each air conditioning system will have its own discrete power supply with overload current protection The electrical power will be supplied to the outdoor unit via the built in isolator The indoor units will derive their electrical power from the multi controller and they in turn will derive their power from the outdoor unit The circuit protection device will protect the supply cable against overcurrent T
24. ected to the left or right or the rear side Notes 1 When brazing use nitrogen This prevents internal oxidisation of the pipes 2 Always use clean new pipe and ensure it is not contaminated by water or dust Piping material seamless deoxidised copper piping for air conditioning refrigeration quality tube 3 Always use a double spanner on the flare nut and tighten to the specified torque see table Note All dimensions in mm Connecting pipe outer dia mm Tightening torque Nm Re tightening torque Nm 06 4 11 8 1 2 kgf m 13 7 1 4 kgf m 29 5 24 5 2 5 kgf m 29 4 3 0 kgf m 912 7 49 0 5 0 kgfm 53 9 5 5 kgf m 915 9 78 4 8 0kgf m 98 0 10 0 kgf m 919 0 98 0 10 0 kgfm 117 7 12 0 kgf m Pipes routed TI qus d forward fuc Gas discharge valve position Liquid pipe valve position Gas suction valve position 17 Installation Materials and sizes Piping IN Materials and pipes required for connection between the indoor units multi controllers and outdoor units are shown below Multi controller Outdoor unit Pipe Main pipes Main pipes Sub pipes Multi controller outdoor unit to outdoor unit to header to connections multi controller header multi controller 1 unit MAR F1
25. el Power source cable Connect the electric cables and earth wire to the outdoor isolator terminal block through a notched section at side of the electric parts box and fix with a clamp Bundle the electric cables using the hole so that they are in the notched section of the electric parts box Control cable Connect the control cable between indoor and multi controller units through a hole at the side of the electric parts box and fix with a clamp Notes Electrical parts box 1 Be sure to separate the power source cables and each control cable Power supply 2 Arrange the power source cables and each 2 connections control cable so they are not in contact with p the bottom surface of the main unit A Isolator Earth screw Multi controller terminal block for wiring control cable between outdoor and multi controller units Earth screw shielded wire 32 Installation Electrical wiring Wiring between units Connect the wires between the units correctly Errors made in the connections can result in the unit malfunctioning Multi controller A Indoor unit Outdoor unit L I Indoor unit DIF 1 GNE Multi Outdoor unit DIF 2 L i L The length of the wires between the outdoor and multi controller units must be 80 metres or less 1 The len
26. emote controller multi controller and outdoor units are provided with a means of checking the status of the System This is achieved by the use of a check display on the remote controller and an LED display located on the microcomputer control PCB which itself is located in the outdoor unit s electrical box The multi controller fault codes are repeated at the outdoor unit A Any faults that occur can be identified by the use of these fault codes A For full details please refer to the service manual 40 Trial run Phase rotation test procedure The dual scroll compressor is unidirectional whilst the variable speed inverter compressor s direction of rotation is determined internally the fixed speed is not and is dependant upon the correct input electrical phase sequence Start the system in either cool or heat mode depending on the building requirements Allow the machine to assume full load The inverter compressor will start and at its maximum speed will commence to slow its speed prior to the fixed speed compressor being energised If the phase rotation is correct the main contactor will energise and allow the second fixed speed compressor to run If this is the case then proceed to the next test If the phases are not correctly aligned the second compressor will not start and the inverter will stop Allow the inverter compressor to restart itself after the recycle period has elapsed it will repeat the above sequence A
27. es Please report any damage immediately gt These units comply with EU Directives 73 23 EEC Low Voltage Directive 89 336 EEC Electromagnetic Compatibility and 97 23 EC Pressure Equipment Directive Accordingly they are designated for use in commercial and industrial environments Avoid installation in the following locations Where there is danger of flammable gas leakages Where there are high concentrations of oil Where the atmosphere contains an excess of salt as in coastal areas The air conditioner is prone to failure when used under this condition unless special maintenance is provided Where the airflow from the outdoor unit may cause annoyance Where the operating noise of the outdoor unit may cause annoyance Where the foundation is not strong enough to fully withstand the weight of the outdoor unit Where the water drainage may cause a nuisance or a hazard when frozen ls ll PPRPP Where strong winds may blow against the air outlet of the outdoor unit Precautions for R407C outdoor units R407C outdoor units use synthetic oils which are extremely hygroscopic Therefore ensure that the refrigerant system is NEVER exposed to air or any form of moisture gt A Mineral oils are unsuitable for use in these units and may lead to premature system failure A Use only equipment which is suitable for use with R407C Never use equipment which has been used with R22 R407C should only be charged from the service cy
28. et cloth around the pipework between the brazed joint and multi controller to ensure the temperature remains below 120 C Equipment damage to components within the multi controller may result if not protected A Muti controller Gas suction side Liquid side Outdoor unit 21 Installation Piping Permissible piping length and head The maximum piping length from Equivalent length L lt 120m the outdoor unit to the indoor unit Actual length L lt 100 The maximum height difference from the outdoor unit to When the outdoor unit is above Hx50m the multi controller or the indoor unit When the outdoor unit is below Hx20m One Multi Controller system Branch pipe Main pipe PRE Ses lt gt i Indoor A b d i 2 Indoor D Multi controller 1 1 E pac qn 9 i Indoor C o 505 i 1 5 H1 Outdoor unit i Indoor D IE A i AE i r Maximum piping lengths actual No of Main pipe Branch pipe Max total pipe multi controllers 1 3m 70m 2m 30m 100m Permissible piping length H1 Maximum height difference between lt 15m multi controller and indoor unit H2 Maximum height difference between lt 15m indoor units AL Maximum piping difference between lt 10m multi controller and indoor unit AL longest pipe L2 shortest pipe L1 Pipe size Gas suction pipe Liquid p
29. g attached 10 Is there adequate resistance More than 10 Insulation resistance MQ 11 Is the voltage correct Voltage V 12 Is the condensate draining adequate 13 Is the heat insulation sufficient for all pipework 14 Is there a short circuit of air flow from the indoor unit 15 Is there a short circuit of air flow from the outdoor unit 16 Is there sufficient refrigerant 17 Are the valves fully opened 18 Does the remote controller operate properly 37 Trial run Checklist 2 Trial run After the initial check has been completed the trial run may commence e The trial run should be completed individually for each and every indoor unit If multiple units are operating simultaneously you cannot carry out the check for cross connection between refrigerant piping and control wiring For each indoor unit confirm both cooling and heating operations Work through the checklist 2 below filling in the relevant data as the test proceeds Checklist 2 No Operation procedure Check items Confirmation M C 1 M C 2 M C 3 M C 4 Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit A B D A B D C D B C 1 Turn on the power Is the LED on the remote controller flashing 2 Check the fan operation Is the air flow blowing out from Set the operation mode to the air outlet Fan and start operation Is there abnormal
30. gth of the wires between the indoor and multi controller units must be 80 metres or less For one and two multi controllers Connect the control wires between the outdoor unit indoor units and the multi controller as shown in the figure below Multi controller 1 Multi controller 2 Indoor unit connections l Il Outdoor unit 1 Outdoor unit 1 connections connections Indoor unit A Indoor unit B M C 1 M C 2 Outdoor unit 39 Installation Electrical wiring For three and four multi controllers Connect the control wires between the multi controllers and indoor units as shown in the figure below Multi controller 1 Outdoor unit connections Connect the control wires between the multi controllers and outdoor unit as shown in the figure below 1 2 3 MIC 1 Outdoor unit 34 Installation Electrical wiring Setting of indoor unit capacity codes The setting of the indoor unit capacities is important Set the correct indoor unit code numbers according to the indoor unit capacity The capacities are set by the rotary switches on the printed circuit board switch A unit A switch B unit B switch C unit C and switch D unit D During manufacture the indoor capacity selection switches are set at 0 Record the indoor capacity codes indoor unit model names and locations in the table following and on the wiring diagram on t
31. he circuit protection must be selected having due regard to the compressor starting current such that the supply cables when sized correctly are protected The cable should be selected to match the nominal load of the system in addition to the losses associated with corrections for length temperature impedance etc In accordance with local codes of practice A The interface kit will derive its electrical power from the outdoor unit A Please refer to the units nameplate and the relevant technical specifications to determine the correct power supply Distribution board Power supply wiring Connect the power supply cables to the isolator on the outdoor unit Secure the power cables on the terminal contact firmly Built in isolator Super Multi outdoor unit M C1 M C2 Do not allow the cables to come into contact with any valves or pipes Use the correct sized cable glands when connecting the power supply cables to the service panel The table below shows the supply requirements Model Running Starting Power current A current A supply MAR F105HTM8 PE 17 7 60 3 50 Hz 380 415 V 31 Installation Electrical wiring Connecting the power source cable and control cable Insert the power source cable and control cable after removing the knockout in the piping wiring panel on the front or side of the outdoor unit Knock out x4 for control cable and power source cables Piping wiring pan
32. he electrical panel cover Example Room A Room B Room C Capacity 16 Capacity 26 Indoor unit Capacity No connection 10 13 16 20 26 36 46 Code number 0 2 3 4 5 6 8 10 Example Model RAV 364UH PE capacity 36 OS El ES ODO CE Multi controller PCB MCC 1210 HOU Capacity select switches Multiple indoor units may be connected to each outdoor unit providing the total indoor code does not exceed the limits shown below Combination of multi controllers and indoor units Number of Maximum No of Indoor unit diversity Maximum system code Maximum code per multi controllers indoor units multi controller 1 4 13596 27 27 2 8 16096 32 27 3 12 27 13 4 16 13 Example of systems with maximum possible code Outdoor unit oD E Interface kit Multi controller code 6 Max system code 27 32 35 Installation Electrical wiring Precautions A At factory shipment the indoor capacity selection switch on the multi controller is set at 0 If the switch remains at the 0 setting the relevant indoor unit will not operate A When power is supplied indoor capacity code data cannot be rewritten even if the code setting switch is changed Set the capacity code before supplying power To change the capacity codes once the power has been applied set the desired codes using the appropriate switches and push the reset butt
33. he pipe with a pipe cutter Allow at least 500 mm between the outdoor unit and the main pipe connecting it to the indoor unit This is for servicing access Replacing the compressor for example requires a space of at least 500 mm Suction valve Shaped pipe section Cut connecting end section 20 Installation Piping Pipework routed downwards If the pipes are routed downwards remove the knock out section in the baseplate of the outdoor unit This will enable access They can then be connected to the left or right or the rear side De braze or cut with a pipe cutter the connecting section above the flare Braze connecting pipework to suction valve pipe Ensure the suction valve is kept cool at all times Suction valve Cut or debraze L shaped pipe Braze connecting pipe E TY Remove base plate knock out Pipework routed sideways If the pipes are routed sideways remove the knock out section in the sideplate of the outdoor unit This will enable access De braze or cut with a pipe cutter the connecting section above the flare Braze connecting pipework to suction valve pipe Ensure the suction valve is kept cool at all times Suction valve Cut or debraze L shaped pipe Braze connecting pipe Indoor unit as Indoor units Connecting refrigeration pipes pipework A outdoor multi controller indoor _ When brazing position a w
34. in pump fault unit Ob Drain pump fault unit 15 Refer to 89 Indoor units capacity codes too high or set to 0 89 Over capacity Er E r fault code refers to Outdoor unit 1C Refer to O D 1C Refer to O D 08 Four way valve alarm AO Discharge temp sensor TD1 short circuit A1 Discharge temp sensor TD2 short circuit A2 Suction temp sensor TS short circuit A4 External air sensor THo short circuit A5 Outdoor heat exchanger sensor TE short circuit A6 Discharge temp TD1 protective operation A7 Suction temp TS protective operation AA High pressure sensor Pd short circuit Ad DOL compressor fault AE Low pressure fault Ps AF Outdoor Unit power source phase order miswiring 1C Extension IC EEPROM short circuit 14 G Tr short circuit protective operation 17 Current detection circuit 14 Refer to O D 17 Refer to O D 21 Refer to O D 1d Refer to O D 1F Refer to O D d3 Refer to O D dA Refer to O D 14 Refer to 17 Refer to 21 Refer to O 1d Refer to 1F Refer to d3 Refer to Refer to 21 High pressure SW circuit 1d Compressor error 1F Inverter malfunction d3 TH sensor circuit Inverter microprocessor IPDU dA Heat sink overheat protective operation IPDU YW YY Y Y YY y NOTE
35. ipe Gas discharge pipe A A A 28 6 15 9 19 1 22 Ins tallation Piping Two Multi Controller system Subpipe be Branch pipe gt gt lt Indoor A mes i Multi controller 1 Indoor i j K1 H1 Indoor D i i L1 i I Reducing i 7 le gt i L2 Oooo E K2 4 Indoor E Outdoor unit Indoor F AN gt Multi controller 2 TEO Indoor G Indoor H Maximum piping lengths actual No of Main pipe Sub pipe Branch pipe Max total pipe multi controllers 2 2m 70m 1m 15m 2m 30m 100m Main pipe longest sub pipe x 70 m Permissible piping length H1 Maximum height difference between 15m multi controller and indoor unit H2 Maximum height difference between lt 15 indoor units AL Maximum piping difterence between lt 10m multi controller and indoor unit AK Maximum piping difference between lt 10m sub pipes K2 K1 L longest pipe shortest pipe Pipe size Gas suction pipe Liquid pipe Gas discharge pipe A 0 28 6 15 9 19 1 Qo 19 1 12 7 15 9 23 Installation Piping Three Multi Controller system Branch pipe Main pipe X Main pipe Y Sub pipe E lt gt Indoor A i i i Indoor B Ne A Multi PN
36. linder in the liquid phase It is advisable to use a gauge manifold set equipped with a liquid sight glass fitted in the centre entry port Introduction Operating conditions OUTDOOR TEMPERATURE 5 43 C COOLING 15 21 HEATING ROOM TEMPERATURE 18 32 C COOLING 15 29 C HEATING ROOM HUMIDITY lt 80 COOLING Metric Imperial pipe conversion Diameter mm 6 4 9 5 12 7 15 9 19 0 22 0 28 6 34 9 41 3 54 1 Nominal diameter inch 1 4 3 8 1 2 5 8 3 4 7 8 1 1 8 1 3 8 1 5 8 2 1 8 Note 1 0 MPaG 10 2 kgf cm G Components 3 pipe system 1 Outdoor unit Model name Inverter unit MAR F105HTM8 PE 10 HP 2 Multi controllers Model name No of indoor units connectable RBM Y1034F PE 3 RBM Y1044F PE 4 3 Interface control kit Model name Requirement RBC 16DIF1 PE 3 or 4 multi controllers used on a system Combination of multi controllers indoor units and interface kits No of No of 3 way No of 4 way No of indoor units multi controllers multi controllers interface kits 1 8 1 2 multi controllers 0 9 3 0 1 10 2 1 1 11 1 2 1 12 0 3 1 13 3 1 2 14 2 2 2 15 1 3 2 16 0 4 2 Introduction Components 4 Indoor units Type Appearance Model name Capacity code on multi controller RAV 164UH PE RAV 264UH PE RAV 364UH PE RAV 464UH PE Cassette 4 way 0045 104 1
37. ll 8 LEDs will be flashing rapidly The system will stop at the end of the test SON Oo Or Oe In the event of cross wiring piping the system will indicate which units are faulty see table below Outdoor display switch SW1 and SW2 set to position 9 One and two Multi Controllers Display Multi controller Fault 1020 All None 1420 1 Unit A 1B20 Unit B Units that are indicated 1C20 Unit failed the test 1D20 Unit D 102A 2 Unit A 102B Unit B 102C Unit 102D Unit D Three or more Multi Controllers Display Multi controller Fault 1020 All None 1420 1 Unit A or B 1B20 Unit C or D Units that are indicated 1C20 2 Unit A or B failed the test 1D20 Unit C or D 102A 3 Unit A or B 102B Unit C or D 102C 4 Unit A or B 102D Unit C or D 39 Trial run Additional notes A Temperature difference between the indoor unit s air inlet and outlet i If the difference between the dry bulb temperatures at the indoor unit s air inlet and outlet is 10 or more when the unit has been operating for at least 30 minutes in cooling mode the system is operating correctly at maximum compressor frequency ii f the difference between the dry bulb temperatures at the indoor unit s air inlet and outlet is 18 or more when the unit has been operating for at least 30 minutes in heating mode the system is operating correctly at maximum
38. noise from the fan 3 Check the cooling operation Does the compressor start Set the operation mode to normally Cooling and start operation Is there abnormal sound Once you have stopped compressor piping operation you have to wait Is the cool air flow coming out for 3 minutes to restart due Is the air flow circulating to the built in restart delay adequately circuit functioning Does the thermostat work normally Confirm that compressor stops at high temperature setting and restarts at low temperature setting In this case check Is the temperature difference every indoor unit s correct between return air and operation outlet air simultaneously Is the power supply voltage Set the correct 220 240 V temperature to the s the operating current correct lowest level s the operating pressure correct 4 Check the heating operation Does the compressor start note Set the operation mode to normally Heating and start the s there abnormal sound operation compressor piping Once you have stopped s the warm air flow coming out operation you have to wait s the air flow circulating for 3 minutes to restart due adequately to the built in restart delay Does the thermostat work normally circuit functioning Confirm that compressor stops atlow temperature setting and restarts at high temperature setting
39. nt at shipment does not include the refrigerant needed for the piping so first calculate this amount and then add it Refrigerant charge amount shipped from the factory Outdoor unit model name MAR F105HTM8 PE Charging amount kg 19 0 Maximum gas charge kg 36 3 The amount of additional refrigerant is calculated from the actual length of the liquid pipe To calculate the additional refrigerant volume refer to the diagram and follow the steps below i The main pipe length is taken as the addition of pipes X Y and Z ii The sub pipe length is taken as the addition of the two longest of the four if 4 multi controllers iii The branch pipe lengths must be individually calculated using the 8 longest pipes iv Do not attempt to add gas above the maximum shown in the table above v For systems with one multi controller ignore the sub pipe section within the additional gas charge calculation vi When using three multi controllers it is important that a reducer is used on the pipework for the third multi controller Pipework before the reducer is classed as main piping and after as sub piping Charging the system Keeping the outdoor unit valve closed charge the refrigerant from the service port on the liquid side If the specified amount of refrigerant cannot be charged fully open all the outdoor unit s valves then perform the cooling operation with the valve at the gas side slightly closed If leaks c
40. on on the multi controller for 2 or 3 seconds this will reset the PCB A RBM Y1034F PE switch D is to be set at 0 IN If the capacity code number is not set correctly the desired cooling or heating capacity will not be obtained This could cause the system to malfunction If the total of the capacity codes exceeds 32 10HP outdoor unit the air conditioner will not function Trial run Precautions The power must be applied to the unit for at least 12 hours before operating the unit This is to ensure the compressor is fully warmed by the heater otherwise the unit may malfunction Do not under any circumstances force the unit to operate by using the magnetic contactor override Before conducting the trial run be sure to remove all packaging from the unit Ensure that the correct capacity code for each of the indoor units is set correctly on the multi controller s PCB The total of the capacity codes must not exceed 27 1 multi controller or 32 2 4 multi controller Check the refrigerant piping and control wires are connected correctly to the multi controller i e the control wiring and refrigerant piping of unit A matches the unit A s connections on the multi controller APPP b Procedure Conduct the trial run as follows ensuring to act on the instructions of the following checklists Write the results onto the checklists These will be very helpful documents for service and maintenance in the future Initial
41. retighten Air purge A The air purge must be completed before supplying power to ensure the multi controllers PMVs are open Using a vacuum pump complete an air purge Never use refrigerant gas After the airtight test discharge the nitrogen gas Connect a gauge manifold to the service port at discharge gas liquid and suction gas sides and connect a vacuum pump as shown Be sure to vacuum at discharge gas liquid and suction gas sides Low High Detailed drawing of packed valve pressure pressure Packed valve fully closed gauge gauge gas suction side Brazed Service port at gas discharge side Flare connection Service port Service port at gas suction side Packed valve fully closed liquid side Vacuum pump Service port at liquid side 3 Packed valve fully closed gas discharge side Use a vacuum pump with high vacuum carry over degree 0 013 x 105 Pa 0 750 mm Hg or less and large displacement 40 l min or more Ensure to create a vacuum at 0 013 x 105 Pa 0 75 mm Hg at the discharge gas liquid and suction gas After the procedure has been completed replace the vacuum pump with a refrigerant bottle and add the refrigerant if required 27 Installation Piping Adding the refrigerant After the airtight test replace the vacuum pump with a refrigerant bottle to charge the system Calculating the additional refrigerant required The refrigerant amou
42. stance between outdoor unit and piping must be 500 mm or more for service access gt 500 gt 500 Note All dimensions are in mm 6 Piping Piping 0201010 uw 1 13 Installation Multi Controller Precautions Avoid installing the multi controller in the following locations A Where rain water may penetrate the unit A Where the weight of the unit cannot be supported Where it is not level Where high temperature under the ceiling or high temperature atmosphere may be produced Where there is equipment that generates high frequencies p el Where it is near devices or wiring which may give off electromagnetic interference NM The base of the unit will reach temperatures of approximately 50 Do not place heat sensitive objects close to the base of the unit Installation and service space IN Always locate the unit in such a location that the electrical panel can be removed easily This is very important for trial tests and service A The amount of space that is required for the service area is 450 mm x 450 mm Eo ESS E el of Outdoor unit connection side 500 mm or more Electric parts box unit connection side 500 mm or more 4 450 mm x 450 mm access panel Access panel 20 mm or more or more 50 mm or more A Handle the multi controller with care 4 SS A Do not drop the
43. system contact either the manufacturer your local environmental control authority or a local waste disposal company for advice A Ensure all packaging material is either recycled or disposed of in accordance with local regulations A The refrigerant gas within the unit should only be removed by an authorised company WARNING Discharge of refrigerant to atmosphere is illegal and may lead to prosecution 47 TOSHIBA AIR CONDITIONING www toshiba aircon co uk MADE IN UK
44. t the end of this sequence allow two minutes before interrogating the remote controller multi controller or the outdoor interface PCB for a fault code Display check for incorrect phase alignment Unit number Remote controller CHECK UNIT Fault code If the phase rotation is incorrect interchange the incoming supply cables to and L and reset the system 41 Trial run Service support functions Forcing the electromagnetic control valve PMV 1 and 2 fully opened fully closed on the outdoor unit 1 Ensure that the system is OFF before the valves are manually operated 2 Valves will reassume their required position unless electrically isolated Outdoor unit SW1 SW2 Short point Operation Function 0 N A TP1 Valves will automatically PMV 1 fully open for 2 minutes 1 assume their required position PMV 2 fully open for 2 minutes 0 TP2 after 2 minutes PMV 1 fully closed for 2 minutes 1 PMV 2 fully closed for 2 minutes 2 0 TP3 Press SW04 Solenoid valves manually energise in sequence when switch is pressed Press SW03 Solenoid valves automatically energised in sequence 1 second intervals Forcing the electromagnetic control valve PMV A B C D fully opened fully closed on the multi controller Multi controller Display switch Valve Short point position 0 PMV A TP1 TP2 1 PMV B 2 PMVC Selected valve is fully open for
45. w for the position measurement of the hanging bolts and the external measurements Hanging bolt Nut up side Pick up the multi controller after matching with hanging bolts 1 the notch hole of the back part into the hanging bolt 2 Fix the slot of the front part onto the hanging bolt Washer up side Body e Tighten the nut firmly and fix the unit in place Washer down side A Nut down side Use a hanging bolt with a diameter of 10 mm local procurement After hanging the main unit ensure that it is level then proceed to make the refrigerant and electrical connections 15 Installation Multi Controller Model A B C D E F RBM Y1034F PE 460 300 90 90 RBM Y1044F PE 530 370 90 90 90 90 All dimensions in mm 2 slots for hanging bolts 2 notches for 12 x 52 hanging bolts 12 x 21 Electric parts box a RBM Y1034F Y1044F PE Refrigerant pipe connection brazing 5 on razno Liquid side 12 7 onnection brazing 90 7565 Liquid side 15 9 e E el La 42 E Sig E 8 Wiring knockouts 6x 920 410 Refrigerant pipe 170 540 470 connection brazing bikes ut Gas side o 19 g Delivery gas side y 19 Refrigerant pipe connection brazing Suction gas side 28 6

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