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` City Multi Equipment Start Up Process

1. OFF OFF OFF OFF OFF 0 00 3101 3086 28 984 981 963 878 381 955 Ae Cool ON Cooling Cool ON Cooling Cool ON Cooling Cool ON Cooling Cool ON vr 2 13 2013 17 17 34 10 Saving and Exporting Data a When viewing the Monitor screen Maintenance Tool is recording the data at approximately one minute intervals When exiting the Monitor screen a Confirm Data Save box will appear asking if you would like to save the data Here you can name the data and write comments See Figure 14 b When submitting data for the Extended Warranty Process ensure all files submitted for a single system reflect the same name This will avoid confusion when information is received from large sites with multiple systems c The data is saved in Offline Analyze Offline Analyze is selected from the Select Monitor Mode screen See Figure 15 d Here you may view the saved data simply by highlighting the data and clicking on it See Figure 16 e To export highlight the data then click export Maintenance Tool will zip the data The zipped file must be imported into Maintenance Tool for viewing See Figure 17 Figure 14 Operation Status Monitor Trend Return Time Searching Print View Option Drive Operation Graph Window Help BIG 5 E Em EBRBO One a K N 15 15 el OS PURY PT2TJMU A Adres 052 Ver5 39 1 01 Ctrl Mode Ope Mode Fos FAN GC GjH Vdo Ido Iu Iw AL Stop Stop 0 0 0 0 2910 00 00 00 2 63HS1 68LS TH3 TH4 TB
2. a Do not open the Maintenance Tool program prior to connecting the MN Converter Interface to the City Multi system and your computer via the USB connection b Open Maintenance Tool and select units of measurement c Select Monitor Mode MN Converter d Select Local Connection e Select connection port This will be a drop down box after drivers are installed version 5 07 and later will show the com port and CMS MNG See Figure 1 Figure Select Monitor Mode MN CONVERTER 4 Z Local Connection GMS MNG E SE COM COM4 CMS MNG Remote Connection G 50 Network Offline Analyze Wide Area Access Unit of Measurement Select 5 Maintenance Tool Search a There are two methods for searching Select Auto for any startup Manual can be used when all addresses are known See Figure 2 b All addresses will be shown in the address grid If addresses are missing locate the missing addresses and correct Missing addresses can be caused by duplicate addressing or communication wire connection problems If addresses are changed cycle power to the outdoor unit s for 10 minutes c Be mindful of the address range for all components See Figure 22 Figure 2 La Maintenance Tool Ver 5 07 MN Converter elle File Option Print Help daag Connect Infor Monitor Malfunc Log Pre error Data Optional Set d Operation 0 1 2 d 4 9 8 7 8 8
3. 11 Setting Up System Auto Restart Function Auto restart 1s a function of the indoor control board With the introduction of software 10 02 indoor unit function settings can be changed This gives the indoor unit the ability to restart after power failure no matter how power is reapplied To accomplish this perform the following steps a From the address grid screen select an indoor unit address then Optional Set See Figure 18 b When the Optional Setting screen populates select IC Function Item Setting See Figure 19 c The IC Function Item Setting Box will populate with the indoor address selected from the previous screen See Figure 20 d Change the Item No 68 and the Item Value to 2 and select Set This will send the new function to the selected address board Figure 18 File Option Print Help 0 1 2 3 4 3 6 y 8 9 o rJe e e e HT I Jy VI S S JE JEJE em m l n m la l m m m 30 fem m pm n m m m m m m 40 la n un s so ee Los Leo JE LL 0 bidet JE JEJE SS ans at KEE JEJE OO KEE KEE ml J L tee Ere Eee oo JE CT teed 240 J JE JE J la e la l esl 250 LCE Data Sending Connect Infor Monitor I Malfunc Log Pre error Data Optional Set Operation Individual Monitor ErrorCode 6607 UL Model Branch Pair On Off Recieving Connecting Information B Sending Data Receiving Da
4. From here you can give individual commands or batch commands See Figure 6 The Operation screen will populate with the lowest addressed IC on the system you are monitoring To change addresses simply click Change at the top of the screen and move to the next address See Figures 7 amp 8 To conduct a batch command select All at the top of the Operation screen Be mindful if there are multiple refrigeration circuits outdoor units daisy chained at TB7 all the IC s seen on the address grid will start See Figures 9 amp 10 Selecting Test Run Heating or Cooling will allow the system to run for two hours in whatever mode selected Both set point and return air will be ignored during this period The outdoor unit or units will start in Initial mode Wait until Ordinary mode to judge the system s performance Keep in mind the data required the Extended Warranty Report must reflect all indoors operating in Test Run heat or cool and the outdoor unit or units in Ordinary mode For Y and S series only if the system 1s judged to be operating correctly the start up process is complete Information on saving and exporting data will be in Section 10 Figure 5 File Option Print Help Connect Infor 1 Monitor Malfunc Log Pre error Data Optional Set l Operation 0 1 2 3 4 5 6 3 8 9 o prec cio Cer oe Jp CJ o S PURY P96TJMU A 0 o O es ee ee ee ee E 100 LL Eke JERe ike Re 110 es f o s es es
5. Malfunc Log Pre error Data Optional Set Operation 0 1 2 3 4 5 6 7 8 9 0 TR IC IC IC IC C LC Individual Monitor 10 Address 31 ErrorCode 7107 20 Attribute OC 30 Model PURY P86TJMU A 40 Ver 9 39 50 CGJL G_No UL Model 96 Branch Pair On Off Mode gll la Intake Set Connecting Information 2 13 2013 20 53 48 Starting The CITY MULTI System a At this point all addresses should be correct and accounted for All errors up to this b c d g h 1 J point should have been corrected To bring up the Monitor screen from the grid screen click the Monitor tab at the top of the screen all other tabs will fade then click the OC you wish to monitor Up to three systems can be monitored simultaneously See Figure 5 Once this is done in the correct order a Confirm tab will appear at the bottom of the screen Click on the tab to move to the Monitor screen See Figure 5 Note the pressure sensors 63HS and 63LS on the outdoor units PSland PS3 in the BC R2 only They should all read the same or very close To start the system click the Drive Operation tab This tab will allow control of either indoor unit IC or the Branch Controller BC Choose IC this will bring up the Operation screen
6. TH6 TH FAN Ver Save X Ope Status Attribute 263 1 1851 934 1564 51 1 1418 6802 2 05 100 Abnormal Press Rise O81 THHS 21576 SV1a SV2 Side SV4b SV4d SV5b 873 469 1056 ES DEMAND DEMAND2 NIGHT NIGHT2 9 Are you sure you want to save OFF OFF OFF Data Name 0M 20130213 172412 BC main Adres 053 Ver 14 Comment Customer Monitor the Pre error data Monitor the malfunc log 2603 2603 00 865 865 6869 o Mode State Stopping Cooling Stop Stopping Cooling Stop Stopping Cooling Stop Stopping Cooling Stop Stopping Cooling Stop 2 13 2013 17 23 06 Figure 15 De om Recycle Bin CITY MULTI Design Too Select Monitor Mode Ya a MN CONVERTER Maintenance classroom Tool for NET G 50 Network Offline Analyze Z Offline Analyze Maintenance Tools for op iiamond zm Bui Wide Area Access drivers Inverter Judome Unit of Measurement Select R S P Exo J S Figure 16 e WEE EE E E File Edit Setting View Help es jJ Monitor Data Monitor Date Last Updated Records Comment _OM_20130213 093930 2 13 2013 09 18 gt 0938 2 13 2013 09 39 33 9 MN20130131_135025 1 31 2013 13 50 gt 14 32 1 31 2013 14 37 10 42 Ticket 121291 Test run heat 9 MN20130131_094819 1 31 2013 09 48 gt 13 35 1 31 2013 13 38 36 213 MEA 121291 Ticket 9 running mooreplace3rd floorb2IMPO OM 20130
7. Gia Gomes 120 elle ben ellen lr EES LGE 240 es elek leese 0 LZ 2 13 2013 16 59 06 Figure 6 Return Time Searching Print View ap Oe es Graph Window Help Ic B Stop U 7 U O 0 2900 OO m 00 2 0000 mg 69ES THs HR THB TF6 THT FAN Ver Sov Ope Status TAttrbute W NET Supply Unt Start up urit 2005 2020 725 1020 741 747 752 2 05 58 703 786 0 DEMAND DEMANDE NGHT NGHT2 SNOW Power Rotation Tirer Rep W NET Supply OFF OFF OFF OFF OFF s Stop U 0 2880 00 00 e 0 2 2005 2005 725 909 723 815 786 2 05 1 oe OS1 To Te THHS 2184a SV1a SV2 SV4a SV4b SV4d SV5b SV5c SV9 AK 698 698 847 0 0 0 U U 0 1 U U DEMAND DEMAND NIGHT NGHT2 SNOW eT Rotation Timer Rep W NET Sch OFF OFF OFF OFF OFF Stop Enable 09 20 13 D O 1200 60 60 SE 1001 1001 14 enel RAA conl con ee eoo C d 2 13 2013 17 02 06 Figure 7 Se Return Time Searching Prin Help Samm v gt R MN 46 F como ums wn o en al anki Auto Lossnay By pass Em pivoni 41 ric uror STIS Stop Enable MOM AMON CO i 2 13 2013 22 56 12 Return Time Searching Q QC PUR N eg RRE RER men c Ei Ctr Mode Ope Mo E NEL Lossnay By pass Operation Fix Stop Enable 2 13 2013 22 56 12 Figure 9 Return Time Searching Prin lol IRV DO m 2
8. Inspect all system components paying close attention to wiring refrigerant lines and drains Be mindful of correct line sizing and condensate lifts Be aware that R2 units require the correct twinning kits Know the minimum maximum distance required for Y series twinning kits to ensure piping is correct The only acceptable way for twinning outdoor units are the examples given in the installation instructions 2 Equipment Power a If unsure at what point control wiring was connected to the outdoor unit or units de energize the outdoor unit or units for at least 10 minutes b Note the outdoor unit or units LED display not all error codes will display here but the ones that do will not allow the unit to operate These errors will have to be corrected before starting the system c Be sure line voltage is present for all indoor components d Always have available the correct Outdoor Technical Service Manual for troubleshooting error codes 3 Connecting Options for CMS MNG E a Connect the MN Converter to any communication terminal TB3 on the outdoor unit TB2 on the Branch Controller BC or TB5 on the indoor unit b The MN Converter can be connected at the M Net terminal block terminals A and B of the Central Controller Note The Central Controller can also be accessed at the same time via a crossover cable for Initial Settings including grouping date and time and basic information etc 4 Starting Maintenance Tool
9. M zm LE Wappen 46 F n O miii Auto Lossnay By pass fe Winn Stop Enable NR O E mn 2 13 2013 17 03 06 Figure 10 Return Time Searching Prin AAT EZ ma mm E O Fan Dry memi Heat Auto Setback Ventilation kee Conducting batch control of whole building Agreeable Address 1 6 Lossnay Operation Fix Gd BO Sig Stop Enable 2 13 2013 17 03 06 9 Verifying BC Port Assignments R2 Only a Have System Information present for reference while verifying port assignments b Be sure system operation mode is Ordinary and that all the indoor units are in Test Run This allows ports assignments to be verified while not being concerned with indoor and outdoor units stopping c Incooling all TH2 temperatures should average between 35 50 degrees d In heating mode all TH3 temperatures should be above 125 degrees e To manually control the BC click Drive Operations at the top of the Monitor screen then select BC Operation See Figure 6 f When the BC operation screen populates you will see across the top 1 9 and A 0 this represents a 16 port BC Each port will have A B and C solenoids These are represented in a vertical row of blocks beneath each port The blocks will have a 0 0 closed or 1 1 2 open in each Here you can command the solenoids open
10. or closed by clicking the block The fourth vertical block allows you to Fix or Cancel the command by clicking this block To send the command select Transmission on the center left side of the screen See Figures 11 amp 12 g Close the ports for the indoor address you are checking A amp C for cooling B for heating then close the BC operation screen Now check for temperature change on the indoor unit TH2 if in cooling mode TH3 if in heating mode See Figures 12 amp 13 h Be mindful of all indoor units if the port assignment 1s incorrect the temperature change can be seen on another indoor unit If this occurs note the indoor unit address and port assignment and continue verifying ports All corrections can then be made at the same time when verification is complete i After all ports have been verified or corrected system information can be saved for the Warranty Report Figure 11 Operation Status Monitor Trend a i as Return Time Searching Print View Option Drive Operation Graph Window Help M BC Operation OC PURY P96TJMU A Adres 051 Ve Address 053 AddressC hange Attribute Ctrl Mode Ope Moda ov OFF O Only 1 3 63H81 68LS TH3 Lo 0 2005 2020 72 7 Lo 0 1 G 3 6 o jo o J o 0 C To Te THHS 3 L1 J loj 698 698 786 DEMAND DEMAND2 OFF OFF J 0 0 1 C Lej OS PURY P72TIMU A Adres 052 Ve i Ctrl Mode Ope Mode OFF C Only All C
11. two addresses overlap l The address automatically becomes 100 if it is set as 01 50 Lowest address within the indoor units connected to BC controller the BC controller Sub plus 50 Sub The smallest address of indoor unit in the group 100 The place of 100 is fixed to 1 ME LOSSNAY BLE Tal The address of main remote controller 50 Remote controller 151 199 200 1 x ey ei The address automatically becomes 200 if it is set Sub as 00 5 g d KG 8 ON OFE remote Pp ed eal led The smallest group No to be managed 200 controller Ze The smallest group No to be managed is changeable n Settings are made on the initial screen of AG 150A System controller BAC HD150 3 201 25 x Settings are made with setting tool of BM ADAPTER Note1 To setthe address to 100 set it to 50 Note2 Outdoor units OC and OS in one refrigerant circuit system are automatically detected OC and OS are ranked in descending order of capacity If units are the same capacity they are ranked in ascending order of their address
12. 0 Individual Monitor 10 Address ErrorCode 20 ll l Attribute 30 Model 40 Ver 50 G_No 60 Address searching Please specify the searching method 130 E 2 13 2013 16 54 20 6 Maintenance Tool Connected Information R2 only a For R2 systems Connected Information is critical for checking correct port assignments after the system has started and exited Initial Mode b Connected Info can be viewed from the address grid screen After the search is complete place the cursor over the OC that you wish to view the bottom right side of the screen will display Connected Information For R2 systems the port assigned reflects the position of the rotary switch SW14 on the indoor control board will also be displayed See Figure 3 c For R2 systems Port assignments can also be viewed from the Monitor screen in the IC information area This is useful when verifying Port assignments See Figure 13 Figure 3 250 7 System Information 5 Maintenance Tool Ver 5 07 MN
13. 130 114856 cranberry saftey training 1857 52 20130123 091037 OM 20130124 114608RIS MoorePloace3rdF loor OM 20130123 102046 OM 20130123 092033 OM 20130121 175135 OM 20130117 174221 OM 20130115 125822RIS 14 OM 20130115 074323 MhN20130114 105436 001 OM 20130110 055608RIS 1 Latitude 39 good 1857 52 20130103 204724 1857 52 20130103 204724 1857 52 20130103 204724 OM 20130104 092039 Ranso OM 20130104 073846 Ranso 1857 52 20121221 100440 1857 52 20121221 100440 4 1 31 2013 08 45 gt 10 35 1 30 2013 10 55 gt 11 47 1 27 2013 09 22 gt 14 57 1 24 2013 09 11 gt 14 40 1 24 2013 09 51 gt 11 44 1 23 2013 10 58 gt 11 44 1 23 2013 09 21 gt 10 19 1 23 2013 08 12 09 19 1 21 2013 16 24 gt 17 50 1 17 2013 16 44 gt 17 41 1 15 2013 0731 gt 12 56 1 14 2013 15 21 gt 07 42 1 1 2001 00 00 gt 13 24 1 1 1 9 2013 13 24 gt 0554 1 8 2013 14 28 gt 15 24 12 30 1899 00 00 gt 20 471 1 4 2013 20 48 gt 20 47 1 6 2013 20 48 gt 10 51 1 3 2013 16 55 gt 09 19 1 3 2013 18 36 gt 07 37 1 2 2013 10 05 gt 10 04 1 3 2013 10 05 gt 20 46 1 31 2013 10 39 22 50 1 30 2013 11 49 08 52 1 27 2013 14 59 29 1 24 2013 14 41 31 1 24 2013 11 46 34 1 23 2013 11 46 30 1 23 2013 10 21 08 1 23 2013 09 20 48 1 21 2013 1751551 1 17 2013 17 42 23 1 15 2013 12 58 52 1 15 2013 07 43 53 1 14 2013 13 25 15 1 10 2013 05 56
14. 20130114 105436 001 OM 20130110 055608RIS 1 Latitude 39 good 1 857 52 20130103 204724 1857 52 20130108 204724 1 23 2013 09 21 gt 10 19 1 21 2013 16 24 gt 17 50 1 17 2013 16 44 gt 17 41 1 15 2013 07 11 gt 12 56 1 14 2018 15 21 0742 1 1 2001 00 00 gt 13 24 1 1 1 9 2013 18 24 gt 0554 1 8 2018 14 28 15 24 12 30 1899 00 00 gt 20 47 1 1 4 2013 20 48 20 47 42 Ticket 121291 Test run heat 10 213 MEA 121291 Ticket 9 running MN20130213 081800 18 C Users bxs1016 Documents M Tool Data 1 28 20130812 09 39 1 28 2 Destination file name OM 20130213 083930 Browse Run Close 1 7 2013 105158 1 7 2013 105159 4T end 01072013 at 10 1440 end 01072013 at 1052 1857 52 20130103 204794 1 6 2013 20 48 gt 10 51 1 7 2013 10 51 59 EE Desktop 3 Libraries 4 B Sparks Buford b A AppData Contacts 4 E Desktop gt 5 05 5 06b 844 end 01072013 at 1052 OM 20130104 092039 Ranso 1 3 2013 16 55 gt 09 19 1 4 2013 09 21 40 985 OM 20130104 073846 Ranso 1 3 2013 18 36 gt 07 37 1 4 2013 07 39 24 782 1857 52 20121221 100440 1 2 2013 10 05 gt 10 04 1 3 2013 20 46 41 1441 end 132013 at 2047 1857 52 20121221 100440 1 3 2013 10 05 gt 20 46 1 3 2013 20 46 41 641 end 132013 at 2047
15. 32 1 8 2013 15 25 59 1 7 2013 10 51 59 1 7 2013 10 51 59 1 7 2013 10 51 59 1 4 2013 09 21 40 1 4 2013 07 39 24 1 3 2013 20 46 41 1 3 2013 20 46 41 DM Firehouse BG test pwty 2135 end 01242013 at 1441 RIS after LEVS replacement Unit80 and 81 DM firehouse DM firestation DM Firehouse Final Log Elec Ht on Rm6 1199898 MEA 119989 end 01072013 at 1052 end 01072013 at 1052 end 01072013 at 1052 end 132013 at 2047 end 132013 at 2047 Delete 3 Import Export m 17 Offline Analyze File Edit Setting View Help ee 9 J m Monitor Data Ol 20130213 093930 MN20130131 135025 MN20130131 094819 mooreplace3rd floor52IMPO OM 20130130 114856 Monitor Date 2 13 2013 09 18 gt 09 38 1431 2013 13 50 gt 14 32 1 31 2013 09 48 gt 13 35 1 81 2013 0 09 45 gt 1035 1 30 2013 10 55 gt 11 47 Last Updated Records 2 13 2013 09 39 33 18 1 31 2013 1437310 1 31 2013 13 38 36 1 81 20 1 80 20 cranberry saftey training 1 27 2013 09 22 gt 14 57 Source data 1857 52 20130123 091037 1 24 2013 09 11 14 40 Record number OM 20130124 114608RIs 1 24 2013 08 51 gt 11 44 MooreP loace3rdF loor 1 23 2013 10 58 gt 11 44 Destination folder OM 20130123 102046 OM 20130123 092033 OM 20130121 175135 OM 20130117 174221 OM 201 30115 125822RIS 14 OM 20130115 074323 MN
16. Converter f IS mm File Option Print Help lc 229 Connect Infor Monitor Malfune Log Pre error Data Optional Set if Operation 0 1 2 d 4 5j 6 7 9 0 LTR luc luc lu Individual Monitor 10 Address 51 ErrorCode 7107 20 Attribute ac 30 Model PURY P96TJMU A 40 Ver 5 39 so Lee l 9e en UL Model 96 70 L LA JJ LL LLJ Branch Pair 80 On Off 90 Mode 100 Ro J Ro J Ro ls Intake 110 SS 120 Fr E e n n n em n ni m Connecting Information OC OS EN EN EN IG NEN EN ER td ERICH EN CER MENS 2 13 2013 16 57 05 a System Information must be saved and submitted with monitored run time Be sure all information 1s correct For Y series once all addresses are correct the information can be saved by clicking on File at the top right of the address grid screen then click Save System Info See Figure 4 The information will save and store in exactly the same manner as run time information and both will be in Offline Analyze Offline Analyze will be one of the options when you first open Maintenance Tool on the Select Monitor Mode screen See Figure 15 b information For R2 systems wait until all port assignments are verified before saving system Figure 4 Pri La Maintenance Tool Ver 5 07 MN Converter cl lets File Option rr E Save Save System hfomation tem Infomation nt Help 8 lu Connect Intor Wionitor
17. MITSUBISHI ELECTRIC COOLING amp HEATING Live Better CITY MULTI Equipment Start Up Process Purpose The CITY MULTI Equipment Start up Process is a guideline to assist in conducting the CITY MULTI system start up If done properly it can be used in combination with the Extended Warranty Process to gather required information for that procedure Generally the R2 series will take more time than the Y series so schedule time accordingly A good rule of thumb is to reserve one day for every 25 indoor units CITY MULTI Checklist The installing contractor is required to complete all sections of CITY MULTI Pre start up Checklist prior to system start up Ensure the following 1 2 4 Appropriate line voltage to all system components Control wiring is terminated correctly and proper voltage is present All components are correctly addressed Port assignments are necessary for R2 systems All field installed components in the refrigerant system must be pressure tested and triple evacuated All additional charge has been weighed into the system and service valves opened Line voltage is applied to outdoor units 12 24 hours prior to start up An as built Diamond System Builder DSB file depicting correct addresses port connections line lengths and sizes is required prior to the scheduled start up Where applicable the unit must be installed above snowline Procedure 1 General Inspection a b c d
18. ancel Transmission Monitor 63HS1 63LS TED LEV 2005 2005 72 5 LEV1 PULSE Te Te THHS 4 698 698 23837 LEV2 PULSE DEMAND DEMAND OFF OFF LEV3 PULSE Cancel Cancel Cancel Monitor BC main Adres 053 Ver 14 LEV4 PULSE Cancel Transmission BO Sig OC Sig SQ OCOOFF COnly bas 0 0 OU DU DU jio Ji ai isl ae laj g LURE ee ee PS1 PS3 dPHM PT1 PT3 T1 T2 T5 T6 booo0oooo0o000000000 OE 10041 nn ROA ROA ROR 690 ARF 6590 eM 11T TTT OD ID IO TO OO OOO DTD 2 13 2013 17 06 06 Fi igure T IE Return Time Searching Print View Option Drive Operation Graph Window Help leie Loss AddressChange malla BC 1 2 d 4 3 8 7 8 9 A B C D E E 0 EN EUR FER a EID EIN FO S S CANT TON Lo jo o oJ oJ oj oJ oJ oJ oJ oJ oJoJoJoJo Le ij JLo bobo JLo JLo JLo bo JLo JLo JLo jbo x Le Leo Le Le JLe_jbe Jie Je Le Jie je Jie je H E 1 2 Sun Fi ES emm EE eee Ss ee aja _ Transmission 163 680 100 Test Cooling ON Cool ON BATT Figure 13 Return Time Searching Print View Option Drive Operation Graph Window Help Fed M E31 Ctrl Mode NS WEE Fos FAN QC QJH Yde Ido Iu Iw AL Ordinary CON 39 36 49 O 277 0 OO 151 153 1 3186 10538 973 1672 720 1490 757 1006 340 1094 0 DEMAND DEMAND NIGHT Ve SNOW ose Rotation Timer Rep WEI Supay
19. ta 2 21 2013 19 47 39 2 21 2013 19 48 09 Self Diagnosis Monitoring OC Function Setting IC Function Item Setting Item No Receiving Data MEL E Self Diagnosis Monitoring OC Function Setting IC Function Item Setting Receiving Data Figure 22 2 4 2 Rule of setting address Use the most recent address within the same group of indoor units Make the indoor units address connected to the BC controller Sub larger than the indoor units a B a 0j address connected to the BC controller Main Indoor unit uL If applicable set the sub BC controllers in an PURY a system in the following order 1 Indoor unit to be connected to the BC controller Main 2 Indoor unit to be connected to the BC controller Mo 1 Sub 3 indoor unit to be connected to the BC controller No 2 Sub Set the address so that kO The smallest address of indoor unit in same refrigerant system 50 Assign sequential address numbers to the outdoor units in one refrigerant circuit system OC and OS are automatically detected Note 2 Please reset one of them to an address between 51 and 99 when two addresses overlap The address automatically becomes 100 if it is set as 01 50 The address of outdoor unit 1 BC controller C Y Please reset one of them to an address between 51 Main I A JC and 88 when

` City Multi Equipment Start Up Process

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