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Multi Digital Scroll System

1. o o o lo pm Y Aa N mh N wo N 5 En 8 MDS Y4 493 142 223 80 Dimension of refnet model MDS Y1 A MDS Y2 A MDS Y3 A and MDS Y4 A 4 Service Manual SM AMDS OD 012 8 148 9 7 OD 19 05 OD T 12 7 Lacaling 6 58 bilateral symmetry Four place of 2 Depth 05 0 8 skor copper brazed OD 129 OD 164 Four places of silver amp copper brazed OD 193 Refnet O joint typeO diameter Unit mm Distributor MDS C2 and MDS C3 Service Manual SM AMDS ii 1 7 EXV Box For AMDS system every indoor has an individual EXV box which will control and regulate the refrigerant flow Different indoor unit has different pipe size therefore different EXV box model Indoor models offered together with their pipe diameter and respective EXV box model are shown in the table below Indoor Model 1 R 22 410 82 R 410A AWMD 09G AWMD 10G AWMD 15G AWMD 20G AEX 18 2SAP D AWMD 25G AEX 18 3SAP D AEX 22 2SAP D ACKD 10C 15 25 15C 15 25 ACKD20C 174 14 18 25
2. 61 6 3 Indoor Error Code for Wired Controller 01 63 6 4 Outdoor Error Code for 2 2 68 6 5 Outdoor Error Code for 05 70 6 6 Troubleshooting FIOW CHAM ouis vi oues vi vOv utes 73 EET 90 7 1 Compatibility Chart for Indoor and Outdoor 90 7 2 Compatibility Chart for Wired Handset 01 2 2 91 7 3 Pressure Sensor Voltage and Resistance 92 7 4 Character Reference for 7 Segment 93 7 5 Temperature Sensor Resistance 94 7 6 Hardware Configuration for ABMDS 95 7 7 R22 AMDS A Series Cooling Cycle 96 7 8 R22 AMDS B Series Cooling Cycle 98 7 9 R22 AMDS A Series Heating Cycle 102 7 10 R22 AMDS B Series Heating Cycle
3. 37 46 1 CIPCUIETIVIODIEOT uisi dd ba betur bb EEUU O EX e PEPPER LOU UL boss 37 Setvice MONIO ecce in 41 KOS Additional edt ____ wea da EN EP asd 42 i Service Manual SM AMDS ii 5 0 COMMISSIONING 45 5 1 Obtain Design Drawing and 46 5 2 Check Piping Routing Wiring Routing amp 46 5 9 Add 1n Additional ISefrigerant ioi retro da 47 5 4 Confirm Indoor Dipswitch 0 20 44 72 48 Rc ME T 50 5 6 Confirm Outdoor Dipswitch 0 2 2 52 Seting POB nate tutta 52 562 SENG UD MIDS Ml PCB ress diet udatenbcase onto date rato bea rdi oes 55 UP 57 SG Stall All 59 5 9 Monitor Outdoor ri rue re 59 0 0 TFOUDISSITODHITIO E 60 6 1 Locating COG etui edat 60 6 2 Error Code for Decorative Type
4. 105 7 11 R410A AMDS B Series Cooling Cycle 109 7 12 R410A AMDS B Series Heating Cycle 116 7 13 R22 MDS BHC Series Cooling Cycle 123 7 14 Refrigerant Circuit 0 007 7 70 2 2 2 127 1 15 Key Card Access Eu Donee n 155 7 16 Error Code for Phase 00 0 777702 2 2 2 157 Service Manual SM AMDS 1 iii Preface This manual provides a guideline for service personnel to perform start up commissioning on the AMDS system Besides providing the details on the system wiring method termination connection and PCB setting this manual also consists of information and working instruction on the Smart Commander Service Version This service manual contains all the information needed such as complete list of error code with troubleshooting flow chart for possible root cause to do necessary repair maintenance and troubleshooting task for the AMDS air conditioner system This service manual is intended for and should only be used by qualified engineers service personnel Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations and experienced with this type of equipment Cauti
5. 2 0 11 2A Heater COMO v eb ee t lebt a mix ec Navia acm a eec a aaa eae 12 2 5 Outdoor Ball Prom git 13 3 0 PCB Handset and essais 14 S LANDS Outdoor vi EI E Ret Qa w UT Etro 14 ou AMDS ______ _ 16 VV IMINO 18 3 3 1 Wiring connection between AMDS outdoor to indoor units 18 3 3 2 Wiring connection between AMDS outdoor units 20 3 3 3 Wiring connection between AMDS master and slave unit 21 34 Handsets for AMDS caste bati cea 21 3 4 1 Wireless 2 7 2 2 22 3 4 2 Wired Controller MC301 24 344 9 Central Controller 303 26 28 __ 29 tT METTE 29 4 2 Hardware aT 29 4 3 Installation of Smart 0 2 7070 202242 2 29 AA ANINO 31 45 oetup or OMalre COMIMANOEN 33 4 6 Smart Commander Software
6. omngroom o 2852 4451 HY Input 7 2 KW 63 Dining Room 5 PIPE 6 35 12 70 80 Voltage 1 pining room __ 1 oom bis DtA 64853 00 The maximum pipe length 33 0m CopperPipe 6 35mmxt0 8 952mmx08 o 12 7mmxt 0 33 Room Charge refrigerant 2529 g CopperPipe 15 88mmxt1 2 19 05mmxt1 2 foo 2 23mmxti 2 13 0 MSCKDOI1S Indoor kooling condibon DB27 0 WB19 0 28 6mmxt1 2 75mmxt1 4 34 1 4t 0 0 PIPE 9 52 15 88 ndoor condition 5 mmxt1 6 mmxt1 6 mmx door condition DB20 0 WB15 0 38 1mmxtt 6 6 oo 22 2mmxtt 2 0 mosvia o mosvza 5 mosysa 2 Refnet MDS Y4 A 1 MDS Y6 MDS Y7 0 PIPE 9 52 15 88 s Reem Extra refrigerant charge Indoor Model 5 2 Check Piping Routing Wiring Routing amp Connection After obtaining the design drawing and report we will need to check on the piping and wiring connection Although this should be done during installation it is better to check all items again before commissioning Piping Ensure both liquid and gas pipe are insulated according to the specification stated below For hot Routing and wet environment it is recommended to increase the insulation thickness If there is
7. 12 5 Remark No No 1 NEUTRAL 10 Fan Motor HI FAN MI FAN LO FAN 2 LIVE 11 T IN Inlet coil temperature 3 Dipswitch 1 SW1 T_MID Midlet coil temperature 4 Dipswitch 4 SW4 T_OUT Outlet coil temperature 5 Dipswitch 2 SW2 12 Apc amp By Centralize Control 6 Dipswitch 3 SW3 13 Ain amp Outdoor Communication 7 PCB Software Version 14 T Room Room temperature 8 MC200 C 15 Display Board 4 IR Receiver 9 Swing MC200 C PCB is only used by A 5WMD 20 25G indoor unit This PCB can be easily recognized by identifying the chamfered edge on the top right corner The figure above shows the locations for all dipswitches buttons electrical connections and sensor connections 16 Service Manual SM AMDS ii MC201 C 99 SLO A o EH K Remark No No 1 Steping Motor 11 Dipswitch 3 SW3 2 EXV2 12 Dipswitch 4 SW4 3 EXV1 13 Dipswitch 1 SW1 4 Apc amp Centralize Control 14 Dipswitch 2 SW2 5 Ain amp Bin Outdoor Communication 15 201 PCB 6 T Room Room temperature 16 PCB Software Version 7 T_IN Inlet coil temperature 17 Swing T MID coil temperature 18 Pump T OUT Outlet coil temperature 19 Fan Motor HI FAN MI FAN LO FAN MC301 Wired Hanset Connector 20 LIVE 9 Display Board amp IR Receiver 21 NEUTRAL 10 Reset Button MC201 C is a common for all A 5 CKD A C A 5 CMD D E A 5 CCD C ADBD and A 5 WMD e
8. 8 a Ball vale Fixed capacity Fixed capacity Digital compe ss or c Filer Ball valve EXW Filter dier fi m Capillary Supper eanaling Slave Unit aail Rew 4 way o valve 9 Prasu Ornieaway Low pressum sensor High pra sure sS Ol exchanger Heal exchanger Bal CE I Fined compressor Fined Compressor Fixed capacity compressor 4 Filter Ball valve 144 Service Manual SM AMDS ASMDS 380 400 420B Master Unit Fitter Ball valve een One way valve sare 5 High pressum seich Preasure piani 2 Pressure checking pion Oll Low pressums sensor I pae E 5 PWM UE ra ir T One way __ valve Y Accurnmulator tank i valve Fixed Fixed capacity Fixed capacity Digital capacity compressor compressor COmpressor compressor LI Fitter Slave Unit Supper cooling 2 icm Rev 4 way E Capillary Filler valve Pressure checking En Pressure checking pion A im q wey 3 o Accumulator Ba
9. Eu EET BEN E itt N BY Co Po While setting the indoor address there are a few rules need to follow The rules are as follow a Each indoor address must be unique and it must not duplicate within a system b The first indoor address must be 0 Do not start the first indoor with address 1 c While setting the indoor address the indoor address number cannot skip For example if there are only 4 indoors in a system the indoor address needs to be 0 1 2 and 3 d ltis advisable that the indoor address follows the sequence of the communication wiring For example for a 4 indoors in the system the first indoor after the outdoor should have address 0 the next indoor address should be 1 and the last indoor of the communication wiring should be 3 Example Outdoor N Address 0 ni OFF S ON m nm OFF S2 ON un S 1 0 2 1 S2 6 1 0 2 1 S2 6 1 0 4 52 6 1 0 2 1 52 6 Service Manual SM AMDS ii 49 ON 1 0 Dipswitch 3 12345678 Capacity l Model Dipswitch 3 is for model and capacity setting It is advisable that the commissioner to check all the indoors during every commissioning The tables below show the respective setting for indoor type and indoor capacity Model name Applicable for Wall Mounted Ceilin
10. 5 030 025 030 025 030 025 0 030 625 030 025 030 iain igs Ps 4 Connecting Pipe Pipe 3 3 5 Charge Outdoor Unit Power Input EXV Pressure Temp umber OF indoor Uni EV Opening Steps ei al a TT Number Of Subcooling EXV Opening Steps E 190 High Pressure b 24 Low Pressure i Suction TH12 Discharge TH1 706 332 1065 108 2 outdoor Unit BubeosingCoilneTHS __ 53 _ Subcooling Coil Outlet TH10 C _ 281 309 91 o ing Circui TH11 Eee MAR Comp Bottom Bottom Gail Inlet Unit amus Ea dc Coil Service Manual SM AMDS ii 123 Outdoor Unit Model MD5120BHC 21 1 7 19 27 19 P Outdoor Connecting Pipe xi 22 Refrigerant Charge Outdoor Unit Power Input 23 6 Number Of Indoor Unit EXV Opening Steps 6 Number Of Subcoaling EXV Opening Steps Step High Pressure Pressure Low Pressure Indoor Unit Condition Suction TH12 Discharge TH1 Subcooling Coil Inlet TH9 Outdoor Unit Subcooling Coil Outlet TH i 10 H1 Coil Inlet Ti 1 Indoor Unit Coil Middle Tm i ca Coil Qutlet To Outdoor Unit Model i 35 15 Moms ec 1 S 0301040040050 030 040 639 040846 50 058 O40 40 orn Branch m Outdoor Unit Voltage Power Input Phase Current C High Pressure
11. L 4 3 24 1 6 Remark The marked wire should be connected only for R410A AMDS model on outdoor MDS M PCB Service Manual SM AMDS ii 95 7 7 R22 AMDS A Series Cooling Cycle Reference M 030 Item DB WB 18 2 Condition 020 015 oo 015 020 m Refrigerant Volume Outdoor Unit Volts EXV Opening S C EXV4 _ Low Pressure Discharge TH1 Suction TH12 um Compressor Bottom Coil In Ti so 160 X Indoor Unit Mid Tm ME Model 040 Item Ambient Indoor 27 18 32 23 Outdoor l Indoor Unit 4 Condition Model 010 010 010 010 010 010 010 010 010 010 010 Main Pipe Branch Total Pipir Refrigerant Volume Qutdoor Total Current Unit DB WB m EXV Indoor Unit Opening S C EXVA lt o D High Pressure Fressure Low Pressure Suction TH12 Compressor Bottom Temp Coil In Ti Indoor Unit Coil Mid Tm Coil Out To 96 JI 19 0 20 5 na n ce ce c 0 4 c c 250 250 400 400 4 n a c c n a CH D 17 5 23 0 97 0 25 0 75 0 16 0 16 5 17 5 85 0 17 0 85 0 Cn 10 5 Service Manual SM AMDS ii Item Ambient Indoor DB Teme WB Indoor Unit Condition Mode 025 05 m
12. 5martcardrea hardware changes Sound video Properties iens property sheet For tri z Advanced Restore Defaults On the next window you may change the COM Port Number to any number lower than 10 After the changes click OK to save the setting Advanced Settings for COM1 Use FIFO buffers requires 16550 compatible UART Select lower settings to correct connection problems Select higher settings for faster performance Receive Buffer Low 1 J High 14 14 Transmit Buffer Low l 5 Hiha 6 COM Port Number 34 Service Manual SM AMDS 1 Step 6 Go to Start ALL Programs Smart Commander Smart Commander EN to launch the Smart Commander program The path to execute the Smart Commander program may vary depends on the installation location and version of Smart Commander Microsoft Visual Basic 6 0 fan Microsoft Visual SourceSafe ms Adobe Reader 8 pa Microsoft Web Publishing 7 Mini Chiller Selection Program Microsoft Office Wor Modem Helper Windows Media 1 Mouse Suite 3 NetWaiting 7 Network Associates 9 NIM PC 73 OYL Tools 7 Real 7 RealvNc Roxio du TET de spart Commander Cb IMAL oia All Programs Step 7 Once the software is finished initiated the user will need to set the COM port setting To do this please go to Function E and select Paramete
13. 39 Indoor Unit Opening EXV1 100 130 Pressure High Pressure 1 23 Pressure bar Low Pressure Suction TH12 T I isse Coil In TI Unit Coil Mid TM Coil Outi Service Manual SM AMDS ii 117 Model MDS B BR 080 Ambient 19907 DB Outdoor mami In Operation a Main Pipe Main Pipe Branch Pipe Total Piping Length Total Piping Length Length a Volume Outdoor fetes a a o e 1 4 Exy Indoor Unit mmn ____ ____ Opening E 129 Pressure SC Outdoor Unit Temp 5 Outlet TH11 Coil In Ti Coil Mid Tm Model MDS B BR Ambient ndoor Temp Outdoor Qu amy m Volume kg E Em mmm pening EDS 159 Pese 118 Service Manual SM AMDS ii Model MDS B BR Ambient DB ilis Condition 02 5 8 8 8 indoor Uni 20 400 200 400 400 400 400 400 00 400 400 a00 Ea uM High Pressure 2 T 28 Pressure Discharge TH1 S C Inlet TH9 S C Outlet TH10 Outdoor Unit S C Bypass Outlet TH11 Suction TH12 C Coil In Ti Unit Coil Mid Tm Coil Out To ws _1 21 1 4 EXV Indoor Unit Opening S C EXV4 High Pressure S C Inlet TH9 S C Outlet TH10 Coil In Ti
14. Dil separater High pressure Q Pressure checking pant Low Pressure Sensor Pressure checking ra piont Fixed capacty Fixed capacity Digital Accumulator compressor compressor compressor Heat exchanger Heat exchanger One way valve X PK EXW Filter Ball valve SUpper cooling coil Filter Capillary A5MDS 140 160 180BR peH Filter Ball valve Rev 4 way valve One way valve Air bypass valve High presaure sensor High pressure Oil separater awiten O Prassure checking piant Heat exchanger Low pressure sensor Prassura checking piant One way valve Fixed capacity Fixed capacity Digital Accumulator compressor compressor compressor Filter Ball valve eupper cooling coil Filter drier Capillary Service Manual SM AMDS 1 139 A5MDS 200 220 240 x Ball valve Rev 4 way One way valve High preasure sensor Hinh Oil separater gh pressure Pressure chacking pront Low pressure sensor p Pressure checking Heat exchanger JUL Fixed capacity Fixed capacity Fixed capacity Digital compressor compressor compressor compressor One way valve Accumulator gt Supper cooling kt coil Filter drier Capillary EXV Filter Ball valve ASMDS 200 220 240BR Rev 4 way a One way valve L Rev 4 way valve 257 Filter Ball va
15. Piping Branch Pipe 22 Refrigerant Volume 47149 Outdoor Unit Volts EXV Indoor Unit Opening 5 4 11 0 Low Pressure E 4 6 outdoor Discharge TH1 Unit 550 550 p Coil In T 16 5 Coil Mid Tm Coil Out To Indoor Unit Ambient Indoor Temp Outdoor Indoor Unit Condition Piping Refrigerant Volume Outdoor Total Current nit Volts Indoor Unit Opening S C EXVA High Pressure P Low Pressure Outdoor Suction TH12 100 10 180 Compressor Bottom Temp Coil In Ti Indoor Unit Coil Mid Tm Coil Out To Service Manual SM AMDS ii 97 070 Item Condition Outdoor Unit EXV Opening Pressure Temp Ambient Indoor DB Temp Quantity m PC Indoor Unit Quantity in Operation Piping m Refrigerant Volume pkg 55 55 55 Volts 380 Indoor Unit STEP S C EXV4 Low Pressure 42 50 860 J J Discharge 12 60 70 Indoor Unit 7 8 R22 AMDS B Series Cooling Cycle Reference Condition Outdoor Unit EXV Opening Pressure 98 Model MDS B BR Was 0m 9m S C EXVA High Pressure Low Pressure Discharge TH1 S C Inlet TH9 Outdoor S C Outlet TH10 Unit S C Bypass
16. 20 18 25 25 AEX 18 3SAP C AEX 22 28AP C ACKD 30A AEX 24 3SAP C AEX 22 3SAP C ACKD 40A AEX 24 3SAP C AEX 22 3SAP C 50 38 38 24 35 22 35 ACCD 10C 15 25 ACCD 15 15 25 20 18 25 25 AEX 18 3SAP C AEX 22 2SAP C ACCD 28C 338 22 35 ACCD 30 AEX 24 3SAP C AEX 22 3SAP C ACCD 38C 38 __ 22 35 ACCD 40 24 35 22 35 ACCD 50 AEX 24 3SAP C AEX 22 3SAP C ACCD 60C 24 45 AEX 24 3SAP C NENNEN ACMD 15 15 25 ACMD 15E ACMD 15E 22 25 15 AEX 18 3SAP C 22 35 400 AEX 24 3SAP C AEX 22 3SAP C ACMD 50D AEX 24 3SAP C AEX 22 3SAP C ACMD 62D AEX 24 ASAP C AEX 24 3SAP C ADBD 80 Built in EXV available ADBD 100 Built in EXV available e 6 Service Manual SM AMDS 1 2 0 System and Control 2 1 AMDS Outdoor System and Control General Circuit ST2 BV2 Diagram gt 9 CJ2 um Dk QEXM 571 p UU SCC ST2 BV2 General outdoor circuit diagram for heating mode Note For more detailed refrigerant circuit diagram please refer to Appendix 7 13 Service Manual SM AMDS ii 7 Piping and Digital compressor TH12 Fix
17. NO Connect correctly and operate again YES Is the coil sensor and NO characteristics normal efer Appendix 7 3 amp 7 YES YES Is the pressure port Is the pressure switch functioning Replace Pressure switch YES Is the outdoor ball NO valve open close Replace ball valve normally YES Is the EXV working NO YES Measure discharge Check for any leakage Release or suction pressure charge the unit with refrigerant Within spec according to specification Replace PCB 78 Service Manual SM AMDS ii Master unit and slave unit communication error Error Code FE For MC301 ER63 For MDS M PCB sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit Check the connection of the communication wire Is it connected correctly Reconnect and restart the system Is the communication Replace the wire and restart the wire broken or loose system Is the DIP switch setting Reset the setting and restart the on PCB correct system Is the master and slave Replace the PCB upgrade the unit PCB software version software version of the PCB same compatible Swap the PCB between Master and Slave unit 15 the error follows the PCB Replace NO Service Manual SM AMDS ii 79 System malfunction error Error Code
18. t L Globe valve 8 e Si 25 Of Air amp High ge pressure switch 5 i Globe pm Electronic xpansion valve Filte Capillary Dry filtering Globe E 5 ator High pressure sensor e bs Pressure tapping point 5 Pressure tapping point I Low pressure sensor m E m E p Globe valve 59 i UI d 5 8 a E L iL Globe valve One way valve WO Jectronic expansion valve Filte Capillary Dry filtering Service Manual SM AMDS ii Connected to indoor unit Connected to indoor unit 135 AMDS 280 300 320BR Master unit Four way valve Filter Globe valve Pressure tapping peint Low pressure sensor One way valve High pressure sensor High pressure switch Prezsune tapping a ce Air amp liquid 5 segregator Globe valve I One way valve Globe valve Electronic expansion valve cl ILLU L Globe valve Filter e pU Four wavy valve Slave unit Pressure tapping point One way valve i Low pressure sensor High peessureseng gt High pesare witch Pressure tapping E Air amp liquid segregator Globe vave _ Heat exchanger A Fixed capacity compresor One way valve pa Electronic expa nsion valve Globe valve Filter
19. 7 10 R22 AMDS B Series Heating Cycle Reference Lor aine y PC 4 14 Game E c Indoor Unit 35 350 350 350 350 350 350 350 350 350 350 350 28 ms 2 0 High Pressure Pressure Low Pressure Discharge TH1 S C Inlet TH9 Outdoor 5 Outlet TH10 Unit S C Bypass Outlet TH 11 Temp Suction TH12 Compressor Bottom Coil Coil Mid Tm Coil Out To Model MDS B BR Ambient Temp Outdoor Quantity Tea Quantity In Operation Condition Model Main Pipe 22 6 bar 393 3298 3 45 3 g Branch Pipe Total Piping Length Refrigerant Volume Outdoor Total Current Unit Volts EXV _ Indoor Unit Opening S 4 High Pressure Pressure Low Pressure Discharge TH1 S C Inlet TH9 Outdoor 5 0 Outlet TH10 Unit S C Bypass Outlet TH11 Suction TH12 Compressor Bottom Indoor Mi Unit ai Mid Tm Coil Out To Service Manual SM AMDS ii 105 _ Model MDS B BR c Ambient Indoor Temp Outdoor Quantity Indoor n at Unit Quantity In Operation Condition Model Main Pipe zi C 4 c Go c c G3 c 030 030 03 030 z C Branch Pipe Total Piping Length Refrigerant Volume kg 15 0 15 0 15 0 ce Unit Vo 8 380 Pressure 66 0 Discharge TH1 Outdoor S C Outlet TH10 23 7 26 6 Unit S C Bypass Ou
20. ER61 Super heat is beyond Indoor motor not working when cooling Indoor EXV opening degree abnormal when cooling Outdoor motor not working when heating Outdoor EXV opening degree abnormal when heating Low pressure sensor abnormal ER60 Emergency run On the premise that part of the indoor unit communication malfunction and either one or both of the following error occurs unit will shut down Refrigerant over charged Service Manual SM AMDS ii 71 ER63 ER76 ER77 EC78 72 Slave outdoor unit communication failure TH1 temperature sensor failure TH2 temperature sensor failure TH3 temperature sensor failure TH4 temperature sensor failure TH5 temperature sensor failure TH8 temperature sensor failure TH9 temperature sensor failure TH10 temperature sensor failure TH11 temperature sensor failure TH12 temperature sensor failure High pressure sensor failure Low pressure sensor failure All indoor units communication failure Master and slave communication wire broken Master and slave communication wire loose Master and slave communication wire A B reversed Slave unit power not on Master and slave jump wire not correct still on update status Last outdoor unit terminal resistance of communication wire not short circuit Master and slave PCB program not compatible Master and slave PCB abnormal Outdoor discharge temperature sensor TH1 broken or loose Outdoor 1 condens
21. LIVE Oe 184 NEUTRAL TRAN H TRAN L Orange Connector Apc Green Connector Bin Ain Dipswitch J1 L PRESS H PRESS To LIVE TO NEUTRAL PCB VERSION 7 Segment LED Display Dipswitch J2 K2 Button K1 Button MDOM PCB is used in all AMDS A series outdoor unit and ASMDS 50 60 70B BR The figure above shows the locations for all dipswitches buttons electrical connections and sensor connections Service Manual SM AMDS ii MDS M LGR aS 4 M RAN ES n4 fl EIN 1 lt PSIG n Penan Nell m LJ Ll LJ 1 6335 0 0 0 me 4 MDS N uN gt ON Gwr 46 100 7 MD JUDA UM 24456 423 45 6 4 E 2 AEN MAAD _ 79 52 icd s 1 r rM mU Tad Ji Hemark No No 1 7 Segment LED Display 14 FX1 OL Fix compressor overload 2 Reset Button DIG OL Digital compressor overload 3 Software Version LP Low pressure switch 4 MDS M PCB HP High pressure switch 5 Ain amp Bi TO indoor N Neutral 6 amp By Centralize Control Live 7 Dipswitch 1 51 15 Transformer Output 8 Dipswitch 2 S2 16 7 Midlet coil temperature sensor 3 9 Dipswitch 3 53 TH6 Inlet coil temperature sensor 3 10 K1 K2 Buttons TH5 Midlet
22. The data and suggestions in this document are believed current and accurate at the time of publication but they are not a substitute for trained experienced and professional service Individual applications and site variations can significantly affect the results and effectiveness of any information the reader must satisfy him herself regarding the applicability of any article and seek professional evaluation of all materials ACSON disclaims any responsibility for actions based on this document Service Manual SM AMDS ii Table of Content W RTT _______ _____ iV QAO X ME OCIA CO Mel TU Uu ST 1 13 Digital Scroll ax dara prd ode 1 2 8 RINGE E D UU DU TED 2 1 3 Basic Layout of AMDS 5 00 0 2 2 202020202 7 2 3 1 4 Maximum Connectible 0 0 0 0 0 00 0 000 00 3 1 9 Maximum PIPING LON QUA isi _______ _ _ _ 4 1 36 Remnetand DISIFIDUIOE ss 2 dust 4 A MI EM 6 2 0 System and CONUOl bert 7 2 1 AMDS Outdoor System and 702 2 2 2 22 7 2 2 AMDS Indoor System and 4 202 2 1 1 24 10 2 3 AMDS System Piping
23. C All indoor unit will resume operation EXV valve open when this condition is achieved Service Manual SM AMDS ii 2 3 AMDS System Piping Connection AMDS system provides multiple indoor unit installation through refnet and distributor connection However there are some limitations where installer should take note Refer to the figures below after the installation of distributor the piping should directly connect to indoor unit and cannot be connected to other refnet or distributor This is to prevent uneven refrigerant flow through the system and causing the system to become unbalance and affecting its performance Do take note on the allowable tilting angle and orientation as well Connection type of refnet joint distributors Connection type of refnet joint distributors Connection type of refnet joint distributors Connection type of refnet joint distributors J 0 f i iwi yw Horizontal line viewer Horizontal line gt viewer Liquid distributor kit X CN NA VW To the indoor unit VAN Horizontal 27 as side 9 liquid side Service Manual it 2 4 Heater Control There is an optional heater for AMDS indoor unit However this option is only applicable for ducted model using wired controller and it will function during h
24. Contact contractors for advice as condition is not suitable for the unit to operate Check the ambient temperature is it out of specification Check the surrounding of Ensure no obstacle around the unit units Any obstacle that and conduct inspection on coil and blocks the air movement filter Check the resistance of sensor TH8 is it within specification Refer Appendix 7 5 Replace sensor and restart the system Replace PCB 84 Service Manual SM AMDS ii Wired controller storage problem Error Code FA For MC301 sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn on the unit Press the reset button on the wired controller Is the error still exists NO Restart the system and verify again Replace wired controller Service Manual SM AMDS 1 85 Superheat protecting value too small Error Code LO 40 For MC301 ER61 For MDS M PCB Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn on the unit Indoor fan motor NO Cooling Outdoor fan Replace indoor outdoor fan motor motor Heating working YES Is th il ID T ds 4 x no Connect correctly and operate low pressure sensor correctly connected YES Is the sensors resistance NO Refer Appendix 7 3 amp 7 5
25. FAN 6 Temperature Setting Use V keyboard to increase or decrease by 1 C F temperature range is 16 30 61 86 F Press for 5s to alter between C and F 7 Fan Speed Setting e Press key to adjust fan speed follows by High Auto Low Medium High e When the mode is Fan there is Auto speed Single speed fan motor has no this function 26 Service Manual SM AMDS ii 8 Swing Setting Press SWING key to active swing function SWING will display on LCD 9 Sleep Setting Press SLEEP key SLEEP will display on LCD which means this function is active 10 Indoor unit lock unlock Press UNIT No key to enter the unit setting then press A or Y to choose the unit number to be set choose for group setting and press ENTER to confirm After that press SLEEP key 55 to lock the chosen unit the symbol Au win display on LCD panel any operation by LCD panel or remote controller is invalid To unlock the unit press SLEEP key 5s the symbol 4 will disappear 11 Real Time Clock Setting Press CLK to enter firstly is week setting press A or V to change from Sunday to Saturday If there is no any press for 5s on any key it will exit to the displaying status Press CLK again is the CLOCK SET icon will display and the current real time clock is twinkling At this time press A to increase the
26. YES Is the indoor outd s the indoor outdoor EXV working properly Replace YES YES Measure suction Replace PCB pressure Within spec NO Recharging with correct amount of refrigerant 86 Service Manual SM AMDS ii Emergency Run Error Code EF 1F For MC301 ER60 For MDS M PCB JN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Restart the unit YES Find the root cause for communication error and solve it Is there any communication error captured by the system Restart the unit NO Is the resistance for sensor TH12 normal Refer Appendix 7 5 NO Replace sensor and restart the system YES NO Recharge refrigerant accordingly and restart the Check the refrigerant charge Is it within specification system YES Replace outdoor PCB and restart the system Service Manual SM AMDS 1 87 Wrong Hardware and Software combination Error Code R22 For MDS M PCB sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit Check the connector on outdoor PCB Replace an outdoor PCB and Refer Appendix 7 6 re program the PCB Is there any connection YES Remove the wire connection and restart the system ES Error Code R410 For MDS M PCB Be sure to turn off power switch before connect or
27. ce 9 9 248 Pressure 20 2 73 0 92 2 Suction TH12 10 6 7 0 Compressor Bottom Vi 36 8 Coil In Ti 26 2 37 5 40 0 Coil Mid 47 0 49 0 Coil Out To o Ambient DB 20 15 20 15 27 19 Temp WB 9 7 6 2115 ndo out 2 Condition 434 5 C enu celu om 4 RI EN NEC Mode 032 028 032 028 032 028 Main Fipe Piping Branch Pipe Unit EXV Indoor Unit Opening 1 escure High Pressure Low Pressure ae Low Pressure Discharger TH1 Outd Suction TH12 Temp Compressor Bottom sc Coil Out To 116 Service Manual SM AMDS ii Model MDS B BR DB Temp we X 2176 2 m pate le MM 0 gt 55 o ____ A 4 ____ 04 Condition Model ST OS ST OS os Tots 015 Tore ors T ors ons 1 615 Piping Outdoor Total Curent TOO Unt 9 390 MM ndoor Unit Opening EXV1 O 1800 __ 23 1 Hiah Pressure Low Pressure Discharge TH P T Rs Unit Coil Out To DB 20 15 20 15 ____ Condition Fressure Temp 21 15 Quantity po Quantity pe Quantity In Operation E 4 O Ooo Model 10151 0201 018 020 015 020 018 020 015 020 018 020 5 ___ Main Pipe Piping Refrigerant Volume pudor Current Unit Volts
28. states of the selected day will display on LCD Panel e Enter first timer setting the timer ON or OFF icon will display on the left and bottom of LCD panel the timer sequence number 1 will display on the top of LCD press A or V to select timer sequence number press the timer sequence number is selected e Enter timer ON and timer OFF setting press A or V to select timer ON or timer OFF TIMER or TIMER OFF is twinkling Press TIMER timer ON or timer OFF is selected e Enter timer setting TIMER SET and CLOCK SET will display on the left and bottom of LCD panel press A to set hour and press V to set minute press TIMER again to finish setting and enter next timer setting repeat above procedures to finish others timer setting B Single Timer Setting e Press TIMER key for 5s enter single timer setting When the unit is ON it can only be set to OFF When the unit is OFF it can only be set to ON the TIMER SET will display on LCD panel press to set hour and press V to set minute press to finish the single timer setting e Exit timer setting If there is no press on any key within 5s or press any key except A V TIMER and ON OFF key it will exit the timer setting Remark 1 When using Wired Controller MC301 on decorative indoor existing IR receiver and LED display on the indoor PCB has to be removed Remark 2 Maximum wire length
29. temperature range is 16 30 C 61 86 F Press for 5s to alter between C and F 3 Fan Speed Setting Press key to adjust fan speed follows by High Auto Low Medium High When the mode is Fan there is Auto speed Single speed fan motor has no this function 4 Mode Setting Press the MODE button the current mode is twinkling Press again to change mode as follows When the outdoor unit is OFF Heat pump COOL HEAT FAN DRY Cooling only COOL FAN DRY When the outdoor unit is Cooling COOL FANDRY When the outdoor unit is Heating 5 Swing Setting Press HEATER SWING key to active swing function Only for swing unit SWING will display on LCD 6 Auxiliary Heater Setting e Under HEAT or FAN mode press HEATER SWING key to active heater Only for heater unit HEATER will display on LCD 7 Sleep Setting e Press SLEEP key SLEEP will display on LCD which means this function is active 8 Keyboard Lock e Press SLEEP for 5s the keyboard will be changed between locked and unlocked When it is locked the lock icon will be shown on the LCD At this time only the ON OFF key is valid 24 Service Manual SM AMDS ii 9 Real Time Clock Setting e Press to enter firstly is week setting press or to change from Sunday to Saturday If there is no any press for 5s on any
30. AMDS system This is useful whether for first timer as reference or experience technicians engineers as check list Obtain design drawing and report Check piping routing wiring routing amp connection Yes Is the report from selection software Calculate additional refrigerant base on piping length and pipe diameter Add in additional refrigerant Confirm indoor dipswitch setting Power up all indoor Confirm outdoor dipswitch setting Power up outdoor Is commissioning software available Connect laptop and start the Check 7 segment LED commissioning software display on outdoor indoor wired controller and indoor LED Check for indoor model address amp quantity Is all indoor No models connected o the outdoor Yes Start all indoors one by one Set indoor temperature according to design requirement Monitor outdoor parameter Service Manual SM AMDS ii 45 5 1 Obtain Design Drawing and Report During the design of AMDS system by using the selection software the user will draw the equipment layout on the software workplace After completed the drawing the software will select the appropriate outdoor model base on the user requirement Once all this is completed user will be able to generate the report The system layout and report is necessary in order to have a smooth running commissioning process Outdoor Model j c o
31. Indoor EXV opening degree abnormal when cooling Outdoor motor not work when heating Outdoor EXV opening degree abnormal when heating Low pressure sensor abnormal Refrigerant over charged Outdoor ball valve not open Outdoor heat exchanger efficiency too low when heating Outdoor motor run abnormally when heating Refrigerant leakage or insufficient Outdoor PCB low pressure output port abnormal Low pressure sensor broken 65 66 Low pressure sensor broken Indoor and outdoor communication System malfunction slave unit TH1 open short circuit slave unit discharge TH2 open short circuit slave unit 1 inlet coil open short circuit slave unit 14 midlet Coil TH4 open short circuit slave unit 2 inlet coil TH5 open short circuit slave unit 22 midlet Coil TH8 open short circuit slave unit ambient temperature TH9 open short circuit slave unit total outlet TH10 open short circuit slave unit sub cooling outlet TH11 open short circuit slave unit super cooling suction temperature TH12 open short circuit slave unit suction temperature Emergency run Outdoor storage malfunction slave unit Low pressure sensor connecting wire broken Outdoor PCB LS port broken Outdoor work normal but all indoor communication abnormal Slave unit high pressure malfunction occurred 3 times Low pressure malfunction occurred 3 times Discharge temperature too high 1 times Com
32. Outlet TH11 Suction TH12 Compressor Bottom Coil In Ti Indoor Unit Coil Mid Tm Coil Out To Service Manual SM AMDS ii Model MDS B BR Ambient ndoor DB 2115 dia Quantity In Operation Condition ode 7 98 025 was 025 025 025 030 Main Pipe Piping Branch Pipe Length Refrigerant Volume Outdoor Total Current Unit Volts o d ee eee 5 pen ing Guaniiy Indoor 4 4 4 Unit Pressure bar Low Pressure Discharge TH1 S C Inlet TH9 Outdoor 3 Unit S C Bypass Outlet TH11 Temp Suction TH12 Coil In Ti Coil Mid Tm Coil Out To Model MDS B BR ni Outdoor Total Current Unit Volts EXV Indoor Unit Opening S C EXVA High Pressure Pressure Low Pressure Outdoor Unit Temp Coil In Ti Indoor Unit _ Out To Out T Service Manual SM AMDS ii 99 Condition Outdoor Unit EXV Opening Pressure Condition Qutdoor Unit EXV Opening Pressure 100 Ambient Temp Indoor Unit Piping Model MDS B BR 150 Indoor DB 21 15 27 19 29 19 Ws Quant E wae oa 585 635 87 655 635 IN f o Branch Pipe Total Piping Leng Mis V 39 Indoor Unit S C EXVA M E ow Tn cie High Pres
33. Press K2 to confirm After it show press K1 It will show 0 Press K2 it will show 0 After that press K1 to select 7 and K2 to confirm Once you successfully select 0755 and press K2 the will enter to setting mode The available setting to adjust are as follow a Indoor Quantity b Temperature to initiate defrost checking c Temperature to initiate defrost cycle d Temperature to stop defrost cycle e Interval of defrost cycle Duration of defrost cycle Most of the time the only setting that need to do is the indoor quantity Other data remain as factory default value 9 fthere is only 4 indoors in the system please select 4 by pressing K1 until the LED show 4 Then press 2 to confirm 10 Leave it for 5 seconds and the system will come out from the setting mode automatically Remark Please read first before you try on the PCB If K1 or K2 is not press after 5 seconds it Will exit from the setting mode automatically 54 Service Manual SM AMDS ii 5 6 2 Setting Up MDS M Setting up MDS M PCB is simpler and requires 3 steps as well 1 Setup dipswitch 1 1 2 Setup dipswitch 2 S2 3 Setup dipswitch 3 S3 Please refer to page 15 for the location of the dipswitches set up 1 Dipswitch 1 0 51 12345678 No of indoor units MDS A B Cooling only Heatpump For dipswitch 1 there are 3 functions 51 1 is
34. Rn 7 21 T met rub P d s ON Auto restart ON OFF Auto restart OFF For wired handset MC301 there are 4 dipswitches on the back of the PCB Once the auto random restart is set the LCD of the wired controller will have an indication Remark While changing the setting please make sure the power supply of the indoor is switch off This dipswitch setting is not applicable for Central Controller MC303 Auto Random To enable auto random restart function on indoor unit using wireless handset the process Restart for will be slightly complicated The indoor power supply must be available Wireless Controller To enable Auto Random Restart the steps are as follow 1 2 3 4 Press the indoor PCB emergency ON OFF button for 5 seconds to go into setting mode When the unit are in setting mode all the LED of the indoor will be light up Use the wireless handset select Fan mode Select High Fan speed Press the ON OFF button on the wireless handset to complete the setting Once the setting is complete all the indoor LED will be turned off and the unit will remain in standby mode To disable Auto Random Restart the steps are as follow 1 2 3 4 Press the indoor PCB emergency ON OFF button for 5 seconds to go into setting mode When the unit are in setting mode all the LED of the indoor will b
35. Section 4 4 and run it Go to drop down menu Function E and select Initiating to connect to the AMDS system Once the software is connected to the system all available parameter of the system Indoor and Outdoor will be visible E amat Cae Funchion E Circuit Mondor Seme Monice 0 MDS080B410 es Ceap H bar 1500 bar By using the software check whether all indoor and outdoor units are connected Besides that the capacity and model of all indoor and outdoor units are verified If there s any problem such as communication error and etc kindly recheck the wiring of the communication cable and the setting of PCB Error code will be recorded and shown in the software itself Service Manual SM AMDS ii 57 If commissioning software is not available commissioner may manually check the AMDS system by observing the parameter shown on the 7 segment LED display which is located on the outdoor PCB During this time we need to check and observe the system to ensure it is running normally without any error The 7 segment LED display located on the outdoor PCB will display related information such as running parameters and error code if any The running parameters and error code shown for MDOM PCB and MDS M PCB are different The running parameters for each of the PCB are shown below while for error code it will be discussed further in the next Chapter 6 0 MD
36. accordingly Ai outdoor to Aj indoor Bin outdoor to Bin indoor on the green color connector on indoor PCB R22 Model Terminal Number for Terminal Number for Bi AMDS80 100 120 150B BR AMDS180 200 220 240B BR R410A Model Terminal Number for An Terminal Number for Bin A5MDS80 100 120 140 160 180B BR 31 A5MDS200 220 240B BR 46 Service Manual SM AMDS ii 19 For the last indoor unit the communication jumper needs to be shorted This is to indicate to the outdoor unit that this is the last indoor unit If the jumper is not shorted the communication between the outdoor and indoor is not stable It may cause the outdoor model to trip after some time of operation The communication jumper is labeled with the name JP1 and the location is shown below Communication Jumper JP1 Communication Jumper 1 Outdoor to Indoor Connection Green Connector Location of jumper JP1 on indoor PCB MC200 C left and MC201 C right 3 3 2 Wiring Connection Between AMDS Outdoor Units Outdoor PCB 1 Outdoor PCB 2 Outdoor PCB N s 30 31 BEEN 32 JAE 30 31 V VY VY YN YYYY QOO gt 5 x gt When more than one outdoor is to be connected de within a system the wiring connection is connected as shown in the figure above For MDS M PCB the jumper JP6 of the last outdoor unit within the system needs to be shorted refer to figure below This is to indicate to t
37. and outdoor PCB abnormal Indoor X and outdoor communication wire broken Indoor X and outdoor communication wire loose Indoor X and outdoor communication wire B reverse Indoor X and outdoor jump wire not correct still on update status Indoor X and outdoor PCB program not compatible Indoor X and outdoor PCB abnormal Outdoor discharge temperature sensor broken or loose Outdoor ambient temperature sensor broken or loose Suction temperature sensor broken or loose Compressor base temperature sensor broken or loose Coil inlet temperature sensor broken or loose Coil midlet temperature sensor broken or loose Coil outlet temperature sensor broken or loose Outdoor motor broken cooling Outdoor circulation air short circuit cooling Outdoor heat exchanger too dirty cooling Outdoor EXV not on properly heating Indoor EXV not on properly heating Refrigerant leakage or insufficient Outdoor service valve ball valve not open Service Manual SM AMDS ii General system failure Digital scroll compressor overload Fixed scroll compressor overload Low pressure trip High pressure trip Service Manual SM AMDS ii High pressure malfunction occur 3 times within 1 hour outdoor unit motor broken cooling outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor ball valve not open indoor circulating air short heating indoor heat exchanger too dirty heat
38. be connected serially Daisy chain inside a conduit Please take note that the communication wiring cannot mix inside a same conduit with power supply Outdoor Indoor 1 Indoor 2 Last Indoor Unit Jumper JP1 need to be shorted For outdoor model there are two type of outdoor board MDOM PCB and MDS M PCB However the wiring connection for both PCB is basically the same There are two wiring connectors located on the PCB one of it is green color and the other is orange color For outdoor to indoor communication the communication wires need to be connected to the green terminal The labels of the terminals are and Bin 18 Service Manual SM AMDS ii XJ SAN EX x1 e MDOM PCB EB p E For MDOM the communication terminals are already wired from the PCB to terminal block Connect the wire accordingly outdoor to indoor Bin outdoor to Bin indoor on the green color connector on indoor PCB PCB LOG NAVAS pu 5 KA ULLA mp Outdoor PCB 30 31 32 33 An Bin For MDS M PCB the communication terminals are also wired from the PCB to terminal block Current models are having the label of and Bin on the terminal block However older model has different terminal number as shown below Connect the wire
39. broken or loose Indoor units Tmig sensor broken or loose Indoor units Tou sensor broken or loose Indoor units sensor broken or loose Indoor units Toom sensor broken or loose Wired controller communication wire not connected or loose 83 Wired controller broken Outdoor PCB broken Outdoor ambient temperature exceed running range 1 cooling running range 0 43 2 heating running range 15 16 Outdoor circulating air short 1 Cause outdoor ambient temperature rising to exceed running range when cooling 2 Cause outdoor ambient temperature falling to exceed running range when heating Data read faultily at the very beginning when power on Chip broken Overflow switch broken Pump broken Indoor and outdoor communication wire broken Indoor and outdoor communication wire loose Indoor and outdoor communication wire A and B reversed Communication wire too long should less than 1000m Outdoor PCB not power on Indoor and outdoor jump wire not correct still on update status Last indoor unit terminal resistance of communication wire not short circuit Indoor and outdoor PCB program not compatible Indoor and outdoor PCB abnormal Service Manual SM AMDS ii Master unit and slave unit communication malfunction Digital compressor overloaded Fixed compressor 1 overloaded Fixed compressor 2 overloaded Fixed compressor 3 overloaded High pressure too high High pressure sensor malfunction D
40. compressor Components Layout o Oil separator TH10 TH9 TH2 Accumulator Drier EXV4 11 EXV1 Ball valve General layout of AMDS system piping and components PWM Valve PWM Pulse Width Modulation valve is an ON OFF valve When signal is send from Control outdoor PCB the pulse voltage will react on the coil and generate a rotating magnetic field This will allow the rotor to drives the valve to move up or down and hence opening or closing the valve EXV4 Control 4 governs the sub cool circuit of AMDS system It is controlled by the readings of temperature sensor TH9 and 10 The difference between TH9 and TH10 is normally about 8 to 12 C cooling mode For example when the difference between TH9 and TH10 is very low EXVA will increase its opening step to maintain the sub cool circuit Defrost Control 12 Suction 5 i B 15 i 2 TH8 C i 25 7 4 Outdoor Ambient 3 10 Defrost starts when 1 After initial 1st heating cycle for 25 minutes and the intersection of TH8 amp TH12 is fall in the I area for minutes 2 After initial continuous heating cycle for 45 minutes 45 minutes from previous defrost and intersection of TH8 amp TH12 is fall in the I area for 3 minutes Defrost will terminate if 1 High pressure reading gt 19 bar R22 OR gt 30 bar 436 psi R410A 2 Unit entered to defrost mode fo
41. disconnect connector Caution or parts damage may be occurred Turn off the unit Check the connector on outdoor PCB Replace an outdoor PCB and Refer Appendix 7 6 re program the PCB Is there any connection NO Add the wire connection and restart the system 88 Service Manual SM AMDS ii Setting Error Error Code ERSE For MDS M PCB sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit Check the outdoor dipswitch setting is it correct Check whether the outdoor PCB is faulty If yes replace a new PCB Correct the dipswitch and restart the unit Service Manual SM AMDS 1 89 7 0 7 1 Compatibility Chart for Indoor and Outdoor MDOM PCB Outdoor with MC200 C MC201 C PCB Indoor MDS M PCB R410A Outdoor with MC200 C MC201 C PCB Indoor Legend Not compatible Compatible 90 Service Manual SM AMDS ii 1 Only replace existing PCB with same or newer software version PCB 2 When replacing outdoor PCB V2 5 and below with V2 6 and above for R22 AMDS B model replacing outdoor PCB V4 4 and below with V4 5 and above for R22 AMDS A model or replacing outdoor PCB V2 4A and below with V2 5A and above for R410A model please check the existing discharge temperature sensor TH1 If the discharge temperature sensor is not from
42. flow Accumulator Service Manual SM AMDS ii 127 AMDS 30 40 50 60 Indoor unit 1 gt lt Electronic expansion valve 8 a T amp e A Check valve Digital compressor Accumulator m Elactronic expansion valve Indoor unit n i Filter Hk Electronic expansion valve AMDS 70AR Four way valve Heat exchanger P1 Heat exchanger Indoor side Ee Tal 9 cL T 7 ca Electronic expansion valve Dry filter Filter Filter One way valve Heating flow Cooling flow Accumulator 128 Service Manual SM AMDS ii AMDS 80 100 120B Ball Valve E mo High Pressure Switch ma High Pressure Sensor TH1 Pressure Tapping Point Heat Exchanger a ng 9 Pressure Tapping Point Low Pressure Sensor gt Oil Seperator Digital Accumulator Ch m 5 tu n I oOmnpressor Ball Valve vw 5 10 4 5 9 H 575 Drier AMDS 80 100 120BR Globe valve Four way valve L Fiter XH Pressure tapping point Low pressure sensor High pressure switch Pressure tappin poin Heat exchanger amp liquid Fixed segregator Capacity Digital compressor One way valve Globe valve Filter Elect ronic expansion valve El
43. pressure sensor broken slave unit Service Manual SM AMDS ii Ambient temperature is out of operation limit range 1 Cooling ambient temperature range 0 43 C 2 Heating ambient temperature range 15 C 16 C Outdoor slave unit circulating air short circuit 1 Result in ambient temperature raising to exceed operation limit range when cooling 2 Result in ambient temperature falling down to exceed operation limit range when heating Fixed compressor 4 operating current too high overload protector OL4 on Fixed compressor 1 operating current too high overload protector OL1 on Fixed compressor 2 operating current too high overload protector OL2 on Fixed compressor 3 operating current too high overload protector OL3 on Slave unit motor broken Slave unit circulation air short circuiting cooling Slave unit heat exchanger too dirty cooling Slave unit ball valve not open Indoor circulation air short circuit heating Indoor heat exchanger too dirty heating Indoor unit filter blocked by dirt heating Indoor EXV not switched on properly heating Refrigerant over charged Slave unit PCB high pressure output port abnormal Slave unit pressure sensor broken Slave unit pressure switch broken Slave unit high pressure sensor connecting wire broken Slave unit PCB HS port broken Preserved Indoor motor not work when cooling Indoor EXV opening degree abnormal when cooling Outdoor motor not work when heating Sla
44. service personnel are often required to operate the ball valve during service and maintenance work Ball valves operation steps are as follow 1 C oes Operate the gas side ball valve e Uninstall the flange connector remove the flange connector from the piping e Stick the seal material to cover the inlet of the ball valve flange to avoid the dirt entry Change the hollow seal pad e Fix the flange connector and hollow seal pad and fixed ball valve of gas side with screw bolt Liquid side ball valve connecting expand the copper tube outlet and connect the ball valve connector Vacuum and charge in refrigerant ensure to open the valve completely Calculate the additional refrigerant and charge into units accordingly Check the looseness to avoid leakage of refrigerant Service Manual SM AMDS ii 13 3 0 PCB amp Wiring 3 1 AMDS Outdoor Unit PCB There are two types of PCB for AMDS outdoor unit namely MDOM PCB and MDS M PCB MDOM PCB h 11 E 4 4 12 PWM Pulse Width Modulation 4WV Four way valve DIG Digital compressor FIX Fix compressor HI FAN MI FAN LO FAN DLT Digital compressor discharge sensor OD Outdoor ambient sensor RTN Return air temperature sensor C BTM Compressor bottom sensor INLET Inlet coil temperature sensor MIDLET Midlet coil temperature sensor OUTLET Outlet coil temperature sensor MDOM PCB
45. special request due to customer requirement or country regulation please follow the specification stated Both air pipe and liquid pipe Insulation apparatus need to be insulated Heat preservation preservation Pipe Specifications Diameter mm 6 25 25 4 28 58 to 41 3 At least At least Heat insulation At least 100 Copper pipe Heat preservation Metal bracket Arc washer EXV Box Ensure that the orientation of the EXV box is in vertical condition 46 Service Manual SM AMDS ii 5 3 Add additional refrigerant Even though the AMDS outdoor unit is pre charged with refrigerant from the factory but additional refrigerant is still required This is because the pre charge of refrigerant from the factory may not be sufficient to ensure the whole system to work according to design condition due to different piping length There are two ways to obtain the additional refrigerant required It can be obtain from the report generated by selection software or through manual calculation Whichever method user used to determine the additional refrigerant it is recommended to monitor the parameter of the outdoor model to ensure that the unit is working properly The calculation done is only served as a guideline Report from After using the Selection Software to choose the appropriate model and piping layout Selection Software user is allowed to generate the informat
46. standard refer to Section 3 3 page 18 Communication wire is wired from the controller to indoor units through the orange connector and through daisy chain connection One end of the screen layer should be earthed to protect the signal transmission Kindly refer to the figure below for the illustration of the connection AC 220V 50Hz MC303 1 Indoor unit 2 Indoor unit Indoor unit n lt 32 LI COM DX gt Earthed screen layer Connected screen layers Connected screen layers Disconnected screen layer The length of the communication wire should not exceed 1000m The Central Controller MC303 can be used with both MC200 C and MC 201C indoor PCB To ensure stable communication jumper JP2 should be shorted for the last indoor unit within the chain connection 28 Service Manual SM AMDS 1 4 0 Commissioning Software 4 1 Introduction Smart Commander is the AMDS software use to perform commissioning and troubleshooting of AMDS system It is recommended that service personnel to use this software while commissioning AMDS system Inside the commissioning kit from factory it consists of a CD Smart Commander Service Version a USB Dongle Key Purple a MC501 gateway with power connection a cable connected from the gateway to serial port and a manual 4 2 Hardware Requirement The hardware requirements for Smart Commander are as follow The CPU main frequency is 800 2 or abo
47. to determine whether the PCB is use in the AMDS A series or AMDS B series 51 2 is to determine whether the model is a cooling only model or heatpump model Dipswitch 51 3 51 8 are used to determine the quantity of indoors connected to the outdoor MODEL MODEL AMDS B Series Heatpump 5 Series Cooling only Service Manual SM AMDS ii 55 ipswitc S2 OFF 0 12345678 Outdoor address Outdoor Capacity Reserved Master Slave For Dipswitch 2 the main function is to set the outdoor address if the outdoor is connected in a network of outdoors or Central Wired Controller MC303 Dipswitch 52 1 is to determine whether the outdoor is a single unit master unit or salve unit Dipswitch 2 3 is related to Dipswitch S3 which is used to determine the capacity of the outdoor This will be cover in dipswitch S3 521 Type of Model Slave Module Single Master Module If the outdoor is not connected to the central control monitoring software Smart Commander or the Central Wired Controller MC303 there is no need to set the address If the outdoor is connected with these accessories then the same rules on the indoor setting is applied here also The rules are as follow a Each outdoor number must be unique The outdoor address cannot duplicate b The first outdoor address must 0 Do not start the first outdoor with address 1 c While setting the outdoor address the outdoor address number canno
48. 0 0 bar 15 0 0 bar IHi TB 0 01 THIO 0 0 15 IH12 0 0 t5 Item Display Identity Type of model Single Master Slave Mode Operating Mode Cooling Heating Defrost Edition The program version of the outdoor Cout Outdoor Capacity Unit HP heh out Outdoor unit superheat Unit C Comp1 DIG Digital compressor output percentage Unit Comp2 3 A4 FIX Fixed compressor status ON OFF FAN1 FAN2 Outdoor fan status STOP LOW HIGH HS LS High pressure and low pressure reading Unit Bar 1bar 0 1MPa 1bar 0 98kgf cm TH Temperature sensor reading Unit Compressor discharge e TH2 Outdoor 1 condenser coil inlet Outdoor 1 condenser coil midlet e TH4 Outdoor 22 condenser coil inlet e 5 Outdoor 2 condenser coil midlet e TH8 Outdoor ambient temperature e TH9 Outdoor coil outlet temperature TH10 Sub cool outlet temperature e H11 Sub cool suction temperature e H12 Outdoor suction temperature EXV1 2 3 Electronic Expansion Valve Opening Steps Fully close during cooling amp defrost cycle Only operate during heating cycle EXV4 Sub cool circuit Electronic Expansion Valve Operate during cooling cycle Fully close during heating cycle SV1 2 By pass valve For future provision Remark If the model does not have the respective sensor it will display after the parameter item 38 Service Manual SM AMDS ii ii Outdoor Refrigerant Diagram Outdoor addres gt O
49. 136 Service Manual SM AMDS ii ASMDS 50 60 70 Pressure checking B C High pressure switch 1 Pressure checking pont exchanger Filter Ball valve Em A5MDS 50 60 70BR Ball valve Rev 4 way valve Pressure checking piont E Low pressure sensor High pressure switch L Pressure checking piont O Heat exchanger one way valve gt Digital compressor 4 gt EXV Filter Ball valve Service Manual SM AMDS ii 137 ASMDS 80 100 120 Filler Ball valve gt One way valve Pressure checking piont lt Low pressure sensor High pressure sensor gt Oil separater High pressure switch Pressure checking piont a uc c D I Accumulator Fixed capacity compressor Digital compressor Filler Ball valve supper cooling coil Filler drier w Capillary ASMDS 80 100 120BR Pressure checking piont Low pressure sensor High pressure sensor separater High pressure Pressure checking 7 il MH PWM Fixed capacity compressor Heat exchanger Accumulator One way valve LX EXV Fitter Ball valve 9 Supper cooling coil m 138 Service Manual SM AMDS ii A5MDS 140 160 180B gt Filter Ball valve One way valve High pressure
50. 30E 00 9 2630E 00 9 3630E 00 5840 01 O180E 00 1390E 01 20 7 2630 01 7 4890E 01 7 7210E 01 19 79 42110 01_ 42170 01 42260 01 41 54680Et00 5 5550 00 56470 00 4 0160 01 4 150 01 42170 01 42 52780 00 53650 00 s4520E 00 7 6 3 6560 01 3 7450 01 5 8320E 01 44 49210 00 50060 00 5 0910 00 1 25050 01 29700 01 5 0330E 01 27800E 01 2 8380E 01 2 8970E 01 50 4 0080 00 4 0850 00 4 1650 00 _ 2 2 5450 01 2 5940 01 2 6540 01 52 57490 00 3 8230 00 4 3 2 53 2 3300 01 2 5740 01 2 4169E 01 54 3 5090 00 3 5810 00 3 6540E 00 oo 1 94 Service Manual SM AMDS ii 2 23 0E 01 2 2720 01 2 3140E 01 3 3960 00 3 4670 00 3 5390 00 6 2 1360 01 1 2 1750 01 2 2140 01 3 2870 00 3 3560E 00 3 4270 00 1 2 0470E 01 2 0830 01 2 1190 01 3 1280E 00 3 2500E 00 3 3200 00 8 1 9610 01 1 9950E 01 2 0290E 01 3 0810 00 3 1480E 00 3 2160 00 1 8800E 01 1 9120E 01 1 9244E 01 2 9840E 00 3 0500 00 3 1170 00 7 6 Hardware Configuration for ASMDS Outdoor TR THII 10 THE TH4 TI PIC Vis E Black Vi white E V2 T9 ______ FIX1 OL MDS P __ LP HP 5 013 6 7 AM ERN t E rye fg
51. Condition Mode a a fa 0089 08 __ ___ Branch Pipe LU RN RE RN sre Tee Ta Pressure outdoor EC Outen THT L3 E ss or UM BENIN 89 For Master amp Slave Combination 5MDS260 500BR please refer to the base model for reference Example 5MDS260BR please refer to 5MDS120BR Master and 5MDS140BR Slave as reference For 5MDS500BR please refer to 5MDS240BR for both master and salve 122 Service Manual SM AMDS ii 7 13 R22 AMDS BHC Series Cooling Cycle Reference Condition Qutdoor Unit MDSO0SOBHC Mem onis L5 11314 C ia Pipe IS Refrigerant Charge Outdoor Unit Watage 380 Power Input Phase Cute _ 18 8 EXV Pressure Number OF Indoor Unit EXV Opening Steps Sp user ras vs res res a0 as Number Of Subcoaling EXV Opening Steps Sep 88 102 High Pressure bar Low Pressure Discharge TH1 77 6 1030 1071 Subcooling Coil Inlet TH9 7 418 55 596 utdoor Unit a Coil Outlet C 23 349 448 43 Subcooling Circuit Outlet TH11 C gt 232 93 328 Comp Comp Bottom 59 327 92 41 55 Indoor Unit Outdoor Unit Model NMDS1I00BHC 27 19 27 19 48
52. Decorative Error code 8 EO 10 For MC301 E8 For MDOM PCB ER55 For MDS M PCB sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn on the unit Outdoor fan motor working Replace outdoor fan motor Ensure no obstacle around the unit Sufficient airflow and conduct inspection on coil and filter Is the coil sensor and Connect correctly and operate pressure sensor correctly again connected Is the coil sensor and pressure sensor resistance characteristics normal efer Appendix 7 3 amp 7 5 NO Replace sensor NO Is the Pees Replace Pressure switch switch functioning YES Is the outdoor ball NO valve open close Replace ball valve normally YES NO Is the EXV working Replace EXV properly 80 Service Manual SM AMDS ii Is the compressor overload protector protecting value correct Reset the overload protecting parameter NO Change compressor Measure compressor winding resistance Within spec Measure compressor running amp Within spec YES Change Is compressor short compressor body Measure suction pressure Within spec nS Release or charge the unit with refrigerant according to specification YES Replace PCB Service Manual SM AMDS ii 81 Outdoor storage malfunction Error Code FO 20 For MC301 ER54
53. For MDS M PCB Be sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn on the unit Restart the unit to confirm does the error still persist Press the reset button Error still remains Examine the PCB for Solder the loose component back loose components and retest again 82 Service Manual SM AMDS ii Indoor and controller communication error Error Code F6 For MC301 sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit Is the wired controller connection loose Connect correctly and operate again Is the wire exceed 10m length YE 5 Connect correctly and operate again NO Is the version of controller compatible with the indoor PCB Refer Appendix 7 2 NO Change controller or upgrade the software for controller indoor unit PCB Restart the system to verify YES Replace the wired controller Turn on the unit Is the error remains Restart the system and verify again Replace PCB Service Manual SM AMDS ii 83 Ambient temperature beyond limit Error Code F7 27 For MC301 ER59 For MDS M PCB sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit
54. Indoor EXV not on properly heating Refrigerant leakage or insufficient 55 System error High pressure malfunction occur 3 times within 1 hour outdoor unit motor broken cooling outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor ball valve not open indoor circulating air short heating indoor heat exchanger too dirty heating indoor unit filter web blocked heating indoor unit EXV not turn on properly heating too much refrigerant outdoor unit PCB high pressure output port malfunction pressure sensor broken pressure switch broken Low pressure malfunction occur 3 times within 1 hour Outdoor ball valve not open refrigerant leakage or shortage outdoor unit PCB low pressure output port malfunction ow pressure sensor broken Too high discharge temperature occur once outdoor unit motor broken cooling outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor unit EXV not turn on properly heating Outdoor ball valve not open 59 Ambient temperature is Outdoor ambient temperature exceed running range beyond the limit cooling running range 0 43 heating running range 15 16 Outdoor circulating air short Cause outdoor ambient temperature rising to exceed running range when cooling Cause outdoor ambient temperature falling to exceed running range when heating 1 System sub heat 1 C for 15 minutes 2 TH12 malfunctions
55. MDS 220B R 1 1 3 RAO ASMDS 240B R 1 1 3 ASMDS 120B R M 5 5 140B R S ASMDS 120B R M ASMDS 160B R S ASMDS 120B R M ASMDS 180B R S ASMDS 180B R M ASMDS 140B R S ASMDS 180B R M ASMDS 160B R S ASMDS 180B R M ASMDS 180B R S ASMDS 3808 1 6 R410A ASMDS 240B R M ASMDS 140B R S ASMDS 4008 1 6 R410A ASMDS 2408 ASMDS 160B R S ASMDS 420B R 1 6 R410A ASMDS 2408 ASMDS 180B R S ASMDS 240B R M ASMDS 200B R S ASMDS 240B R M ASMDS 220B R S ASMDS 240B R M ASMDS 240B R S ASMDS 250B R M ASMDS 250B R S Remark refers to Master unit and refers to Slave unit This combination cannot be changed Digital Scroll Compressor Fix Scroll Compressor Digital Scroll Compressor can be easily identified by the presence of PWM valve On the other hand Fix Scroll Compressors do not have any PWM valve for modulation purpose The combination of Digital and Fix Scroll Compressor work according to the following principle Total Capacity Required 100 Fixed Compressor Operating Digital Operating Loading Unloading 1 Digital Scroll Compressor is the leading compressor which will turn ON first With assistance of PWM valve Digital Scroll Compressor will modulate the refrigerant flow according to the total indoor capacity required 3 When the total indoor capacity exceeds the maximum capacity of Digital Scroll Compress
56. Minjie brand it should be change to this brand If it is a master and slave unit a new Minjie brand discharge temperature sensor need to be added at compressor discharge piping where the piping for master and slave merge 3 When replacing outdoor PCB V2 3 and below with V2 4 and above for R22 AMDS B model outdoor capacity dipswitch setting may be different Dipswitch setting for PCB V2 4 and above is available in page 50 The table below shows the dipswitch setting for PCB V2 3 and below 4 For indoor PCB MC200 C or MC201 C with software version 2 7 there is an additional key card access feature integrated into the PCB For further information about this feature kindly refer to Appendix 7 15 page 155 7 2 Compatibility Chart for Wired Handset MC301 bl 3 Legend Not compatible Compatible Service Manual SM AMDS ii 91 7 3 Pressure Sensor Voltage and Resistance Value High pressure sensor n Pressure v QUI VO age VOUT VOUT V CC resistance ___ __ __ 420 om 412 _ ___ oo 407 ____ __ __ 2 gt _ __ os os 39 om 375 10 36 ___ gt __ 92 Service Manual SM AMDS ii Low pressure sensor Ls pressure Vout GND har pes a
57. OM PCB Running Parameter Outdoor Information Reading 0 Compressor Discharge Temp ____ 1 __ 2 Compressor Suction 3 Compressor Bottom Temp 4 jCondensingCoillnet Temp 5 Condensing Coil Medium Temp 6 Condensing Coil Outlet Temp 8 Modulation Percentage 9 PCB Controli Time For MDOM the readings of each information will continuously being displayed on the 7 segment LED display from 0 to 9 For example if we need to check the ambient temperature reading number 1 wait for the display to show 1 and the following value will be the sensor s reading on ambient temperature MDS M PCB Running Parameter rsp CSP outdoor in the course cooling stop i 05 outdoor starting to defrost outdoor indoor defrosting DSP outdoor in the course defrost 65 op mne aros Code Description outdoor system HS HST outdoor starting to heat P a malfunction protection r TEST outdoor hardware HE Dt HEAT outdoor indoor heating EE St icio HS pad ie SE open all EXV perci ead normed Other mode Erro For MDS M PCB the reading of sensors will not shown continuously like MDOM PCB On the other hand it will display the current status or running mode of the outdoor unit For example when the unit is on standby it w
58. Outlet TH10 Subcooling Circuit Outlet TH11 Coil Inlet Ti Indoor Unit Condition Coil Middle Tm Cail Outlet To Service Manual SM AMDS ii 125 Outdoor Unit Model MDS200BHC uen TN 2552 DE I 3 Barer Refigeran a Outdoor Unt A 380380880 Power Input Phase Curent __ __ 26 448 m Of diss Unit EXV Opening Steps 126 170 129 179 119 163 125 186 Number Of Subcooling EXV Opening Steps Wai 4 _88 Low Pressure i Subcooling Coil Inlet TH9 C as 403 586 utdoor Unit cooling Outle TH10 263 281 3955 _ 423 Subcooling Circuit Outlet TH11 C 194 32 45 491 ___ Comp Bottom CT C 338 s amp s 53 5898 Indoor Unit For Master amp Slave Combination AMDS220 280BHO please refer to the base model for reference 126 Service Manual SM AMDS ii 7 14 Refrigerant Circuit Diagram AMDS 30 40 50 60 Filler Filter L TL Blectronic expansion valve Indoor unit 1 1 5 5 8 8 Digital compressor Accumulator Liquid receiver Filter bie Electronic expansion valve Filter Indoor unit n AMDS 70A Indoor Unit P 1 1 High pressure switch i Heat exchanger Indoor side 5 2 e c c 5 Ca Filter Filter Indoor Unit P2 Cooling
59. S B BR Quantity _ Quantity in Operation 4 Total Piping Length Refrigerant Volume 19 6 19 6 9 Unit Volts 380 380 EXV Opening _ S C EXV4 248 mdi ee Se a a SC Outdoor S C Sucien TH12 Compressor Bottom 4i 34 4 114 Service Manual SM AMDS 1 Model MDS B BR Main Pipe Piping Branch Pipe Total Piping Length o Opening 5 4 o o High Pressure Pressure Low Pressure Discharge TH1 S C Inlet TH9 Coil Out T 9 For Master amp Slave Combination BMDS260 500B BR please refer to the base model for reference Example 5MDS260B BR please refer to 5MDS120B BR Master and 5MDS140B BR Slave as reference For 5MDS500B BR please refer to 5MDS240B BR for both master and salve Service Manual SM AMDS ii 115 7 12 R410A AMDS B Series Heating Cycle Reference cm B BR 050 Ambient DB 20 20 19 27 19 WB 21 15 Indoor En M Quantity In Operation Condition Model 14 2 Piping Branch Pipe m g lt ha lt r Total Fiping Lenath Outdoor Unit 380 EXV Indoor Unit 400 360 Opening 158 High Pressure 10 2 Low Pressure Discharge TH1 I CT 4 6 8 41 380 22 s I Do c ce cC ce a A
60. Service Manual SM AMDS ii 119 Model MDS B BR we ws 75 A _ ss es ne Tr e Main Pipe UN Condition Volts py Indoor Unt CACACE Opening 5 m T Pressure 8 9 pA outdoor SC Out Seton THT 8 333 Ex Coil in 3s r 9 m Coi Out Model MDS B BR Ambient 119001 DBI Quantity In Operation Condition Model Main Pipe 000 Branch Fipe Total Piping Length Refrigerant Volume 16 2 Low Pressure Compressor Bottom Coil Indoor Coil Mid Tm Coil Out To 120 Service Manual SM AMDS ii Ambient Indoor GENERE Quantity Indoor Unit Condition Model Main Pipe E Quantity In Operation Piping Branch Pipe Total Piping Length Refrigerant Volume Total Current Unit EXV Indoor Unit Opening 5 4 High Pressure Pressure bar Low Pressure Discharge TH1 S C Inlet TH9 S C Bypass Outlet TH11 S C Outlet TH10 Suction TH12 Coil In Ti Indoor Coil Mid Unit Coil Out To Ambient Temp rimis Service Manual SM AMDS ii 121 uel Model MDS B BR 240 Duk 75
61. TH1 broken or loose Outdoor 1 condenser inlet coil temperature sensor TH2 broken or loose Outdoor 1 condenser midlet coil temperature sensor TH3 broken or loose Outdoor 2 condenser inlet coil temperature sensor TH4 broken or loose Outdoor 2 condenser midlet coil temperature sensor TH5 broken or loose Outdoor ambient temperature sensor TH8 broken or loose Outdoor outlet coil temperature sensor TH9 broken or loose Outdoor sub cool outlet temperature sensor TH10 broken or loose Outdoor sub cool suction temperature sensor TH11 broken or loose 63 TH12 open short circuit suction Emergency run Outdoor storage malfunction Indoor inlet coil sensor malfunction Indoor midlet coil sensor malfunction Indoor outlet coil sensor malfunction Indoor return air sensor broken Indoor supply air sensor broken Indoor and controller communication malfunction Ambient temperature exceed running range Wired controller storage broken Pump malfunction indoor drain pump Indoor and outdoor communication malfunction Outdoor suction temperature sensor TH12 broken or loose On the premise that part of the indoor unit communication malfunction and either one or both of the following error occurs unit will shut down 1 System sub heat lt 1 C for 15 minutes 2 12 malfunctions Outdoor PCB chip read faulty at the very beginning when power on Outdoor PCB chip broken Indoor units sensor
62. TH8 open short circuit ambient T TH9 open short circuit outlet T TH10 open short circuit sub cool outlet TH11 open short circuit sub cool suction Service Manual SM AMDS ii 6 3 Indoor Error Code for Wired Controller MC301 High pressure malfunction occur 3 times within 1 hour outdoor unit motor broken cooling outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor ball valve not open indoor circulating air short heating indoor heat exchanger too dirty heating indoor unit filter web blocked heating indoor unit EXV not turn on properly heating too much refrigerant outdoor unit PCB high pressure output port malfunction pressure sensor broken pressure switch broken Low pressure malfunction occur 3 times within 1 hour Outdoor ball valve not open refrigerant leakage or shortage outdoor unit PCB low pressure output port malfunction low pressure sensor broken Too high discharge temperature occur once outdoor unit motor broken cooling outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor unit EXV not turn on properly heating indoor unit EXV not turn on properly refrigerant leakage or shortage outdoor ball valve not turns on Compressor overload protector shut and occurs 3 times too much current flow in the compressor compressor overload protector protecting value wrongly set Outdoor discharge temperature sensor
63. al Piping Length 8 18 18 Refrigerant Volume 0 m Opening 5 4 288 213 eeu Low Pressure 9 33 88 Sct TH Compressor For Master amp Slave Combination MDS260 320BR please refer to the base model for reference Example MDS260BR please refer to MDS120BR Master and MDS150BR Slave as reference 108 Service Manual SM AMDS ii 7 11 R410A AMDS B Series Cooling Cycle Reference Model MDS B BR 050 Temp Oddo o o WB 5 48 ve 4 2 Condition Mode _ 020 032 020 032 020 032 Lt 5 5 Piping m 5 5 L2 Current Unit Volts 380 EXV Indoor Unit MEN 180 Opening S C EXV4 a oe R E Presse 288 36 5 75 85 100 88 Discharger TH1 58 4 08 9 102 9 2 21 3 a Compressor Bottom 53 0 Call 16 0 i 39 96 m 58 95 165 90 107 Cail Outi Ta TES B BR Ambient DB 32 23 Temp we 18 35 43 Be Condition Model 1 0821028 028 032 028 Piping Refrigerant Volume Outdoor Total 1386 258 278 Unit Mol 220 220 220 EXV Indoor Unit Opening S C EXV4 9 8 7 COM uu PU i Coil In Ti Coil Mid Coil Out To 90 103 172 Indoor Init Service Man
64. alve A HP senso HP switch Access valve sensor E Access valve exchanger Oil separator a Fixed comp Fixed comp Fixed comp Digital comp Accumulator LP low pressure ubeooli HP high pressure su ing col A655 EXV electronic expansion valve Capillary Filter drier 150 Service Manual SM AMDS ii AMDS 220BHC Chack valve HP sansor HP switch Access valve O Fixed comp Digital comp Accumulator Pi AT dir Capillary Filter drier Strainer Ball valve Chack HP sensor HP swith oO Access valve Heal exchanger F Fixed comp Fixed Accumulator LP dow pressure HP high pressure 9ubcooling EX V alactronic expansion valve Capillary Filter drier Service Manual SM AMDS ii 151 AMDS 240BHC Strainer Ball valve Check 7 LP sensor Access valve Fixed Fixed comp Digital comp Accumulator 3 H Subcooling coil Filter drier Strainer Ball valve Chack valva HP sansar HP switch O LP sensor Access valve Access valve HP high pressure Subcooling coil EXV ale ctronic expansion valve Capilary Filter drier 152 Service Manual SM AMDS ii 260 Strainer Ball valve Check 74 HP sansor HP switch Access valve Access valve PAM valve exchanger Fixe
65. arge TH1 Suction TH12 Compressor Bottom Temp Indoor Unit Coil Mid Tm Coil Out To Ambient Tem Outdoor Quantity Operation Indoor Unit Condition Refrigerant Volume Outdoor _ Total Current A 180 65 205 75 18 0 6 5 Unit Volts Opening 1 200 120 Low Pressure Discharge TH1 85 0 Temp C 39 0 41 0 Coil In Ti Indoor Unit Service Manual SM AMDS ii 10 Ambient Indoor Temp Quanti Indoor Unit Quantity in Operation Piping Branch Pipe Total Piping Length Refrigerant Volume Condition Outdoor Total Current Unit Volts EXV Indoor Unit Opening EXV 1 High Pressure Pressure Low Pressure Compressor Bottom Coil In Ti Indoor Unit Item Ambient Indoor DB 20 15 20 15 27 19 WB Bn 4 4 Indoor Unit Condition Model 015 015 020 020 015 015 020 020 015 015 020 020 Piping Total Piping Length Refrigerant Volume kh 55 55 55 Outdoor foal Current EA E ss Unit Volts 380 380 EXV 450 450 400 400 450 450 400 400 450 450 400 400 Opening 1 150 258 High Pressure Pressure Low Pressure Discharge TH1 Suction TH12 Compressor Bottom Ter C Coil In Ti Coil Mid Tm Coil Out To 104 Service Manual SM AMDS ii
66. between unit and wired controller is 10m Service Manual SM AMDS ii 25 3 4 3 Central Controller MC303 EM SWING c C 2 HEATER SLEEP 1 Address Register e After communication wire is completely connected press SETUP key for 5s Address will be automatically registered and a number from 60 to 0 will be shown on the display LCD 2 View Actual Address Press key for 55 then press A or Y to view all the units e Actual address has four figures first two where show on minute previously for outdoor unit last two where show error previously at the right bottom corner are for indoor unit 3 Single Group Unit Setting e Press UNIT No key to enter the unit setting then press or V to choose the unit number to be set and press ENTER to confirm choosing e When LCD panel show press ENTER to confirm enter group setting 4 ON OFF Operation e Press ON OFF key to RUN or STOP the unit operation For Group On Off press ON OFF key for 5s and the unit number is twinkling is displayed LCD panel Then press ON OFF key to turn on off all units 5 Mode Setting e Press the MODE button the current mode is twinkling Press again to change mode as follows When the outdoor unit is OFF Heat pump COOLHEAT FAN DRY Cooling only COOL FAN DRY When the outdoor unit is Cooling COOL FAN DRY When the outdoor unit is Heating HEAT
67. coil temperature sensor 21 11 FIX Fix compressor TH3 Midlet coil temperature sensor 1 DIG Digital compressor 17 12 Return air temperature sensor 12 LOFAN TH11 SCC bypass sensor HI FAN TH10 After SCC sensor 4WV Four way valve TH9 Before SCC sensor 13 PWM Pulse Width Modulation 18 TH8 Outdoor ambient sensor TH4 Inlet coil temperature sensor 2 TH2 Inlet coil temperature sensor 1 19 Digital compressor discharge sensor 20 LOW U Low pressure 21 HI U High pressure MDS M PCB is used in all A 5 MDS B BR series outdoor unit except ASMDS 50 60 70B BR The figure above shows the locations for all dipswitches buttons electrical connections and sensor connections Remark When K1 button is pressed unit is forced to run defrost cycle When K4 button is pressed when unit in standby condition all EXV valve will open To exit these states simply press on the Reset button Service Manual SM AMDS ii 15 3 2 AMDS Indoor Unit PCB There are two types of PCB for AMDS indoor unit namely MC200 C and MC201 C MC200 C LE 2 E ax 9 2 d m E 2 EN Y 150044052005 gt gt eho me 8133H U U 240 ull te gt AU Q J f
68. compressori Electronic expansion valve Globe valve Filter Electronic expansion valve Boog Capillary Dry filtering Service Manual SM AMDS ii 131 AMDS 200 220 240 Heat Exchanger 5 5 M 8 cL Heat Exchanger Heat Exchanger AMDS 200 220 240BR One way valve 2 Four way valve P Four way valve High pressure sensor High pressure switch Pressure tapping point Heat exchanger UC J e gt 4 aq L Electronic EB expansion valve 132 Oil segregator B Check Valve Pressure Tapping Point i Low Pressure Sensor Globe valve Filter Filter Globe valve Pressure tapping point gt Low pressure sensor gt Alr 4 lauta segregator Oil Globe valve Filter I onic expansion valve Capillary filtering Service Manual SM AMDS ii AMDS 2608 Valve Check Valve 4 High Pressure Switch 3 High Pressor Sensor Heat Exchanger zl mo Pressure Tapping Point Pressure Tapping Point Low Pressure Sensor p D ie c o T Indoor Unit L Valve 2 2 Da P2 55 co DL Accumulator m Po 46 9 Check Valve Ball Valve TH118 Valve 2 t gt 5 High Pressure S 3 High Pre
69. ctDaikin PN 005 Smart Commander HP Support All Programs D A Log Off Shut Down TE 15 Inbox Microsoft Out 7 Welcome to Step 2 After click on the Control Panel a new window will prompt up Please select System Control Panel File Edit View Favorites Tools Help Bact 2 Search ies Folders Address G Control Panel Control Panel 6 Ed T 49 Bs BA A Accessibility Add Hardware Add or Administrative Automatic Bluetooth Broadcom Date and Time Display Folde G Switch to Category View Options Remov Tools Updates LocalCOM Control Suite 2 5 m ej Vr gt t See Also 9 D e i 2 E Internet Java Keyboard Mail Mouse Network Phone and Power Options Printers and Pr e Windows Update Options Connections Modem Faxes Help and Support G ay 9 e lt Security SigmaTel Sounds and Reon Taskbar and User Accounts Windows Wireless Center Audio Audio Devices Start Menu Firewall Network Set Step 3 Once the system icon is selected another new screen will prompt up Click on the Hardware on the tab menu Once the window show the Hardware Menu select Device Manager System Properties System Restore Automati 5 diware General gware Device Manager The Device Manager lists all the hardware devices installed your computer Use the Device Manager to change the properties of any
70. d Special Order Once the button is selected a new window will prompt 44 OFOutdoor Unit Indoor Unit Humber 4ll Manual Defrost Especial Operation Control Order Open Vale Control Order for Testing O T open 7 shield the communication between outdoor unit and indoor unit 10 125 138 14 1 16 198 204 218 22 248 25 268 278 288 298 308 348 364 308 128 438 444 458 458 4748 Manual defrost special operation control order Only applicable for heatpump model and can be activated during heating cycle Once the button is selected the outdoor will automatically go into defrost cycle The duration for the defrost cycle will be 10 minutes Open valve control order when testing Useful during commissioning Once this button is selected all EXV will fully open 480 steps This function is only valid for AMDS B series A 5 MDS 80 500 To resume normal operation just press on the reset button located on the MDS M PCB 265 A A 2 KS Reset Button Location of Reset button for MDS M PCB Service Manual SM AMDS ii 5 0 Commissioning In order to commission AMDS there are some necessary steps to follow These steps help to streamline the possible problem that may occur during commissioning The flow chart below provides a general guide line for commissioning
71. d comp Digital comp Accumulator Su bcooling Capillary Filer drier Strainer Ball valve Check valve 5135 r LP senso HP switch Access 0885 valve Fixed comp Fixed comp Fixed comp Accumulator pk EN gt XH LP jow pressure PETT HP highpressure 9ubcooling T expansion valve Capillary Filler drier Service Manual SM AMDS ii 153 AMDS 280BHC Strainar Ball valve Chack valve HP sans E LP sensor HP switch Access valve Fixed comp Fixed comp Digital comp Accumulator Subcooling Capilla ry Sirainar Ballvalve Chack valve LP sensol Access vahe t 7T T comp Fixed comp Fixed comp Accumulator H pressure Subcooling EX V alectronic expansion valve Capillary Filler drier 154 Service Manual SM AMDS ii 7 15 Key Card Access Feature For indoor PCB MC200 C or MC201 C with software version 2 7 and above it is come equipped with an additional function called as Key Card Access Feature This feature is particularly useful for application such as hotel room which requires the unit to be in standby and only allow user to operate the air conditioning unit when the hotel room card is inserted In order to have this function you will require the following items 1 Indoor PCB
72. device Drivers Service Manual SM AMDS ii 33 4 A new window will prompt out showing the list of hardware which is available in your User will need to expand the Port COM amp LPT to locate the communication port From the example below the USB to RS232 or Serial Port is Please note that the communication port COM on each laptop will be different If the COM port is less than 10 jump to step 6 and continue setting up the Smart Commander If the COM port goes more than 10 kindly follow the next step to change the COM port number BD adapters Pots 5447 Communications Pot af EC Fonte PLU 4 Prolific USBto Serial Badge 5 4 4 Sound video and gere cortrolers System feces Universe Senal Bus controllers 5 Right click on the USB to RS232 or Serial Port and select Properties Next go to Port Settings and select Advanced Communications Port COM1 Properties General Port Settings Driver Details Resources Bits per second BB Network adapters Data bits 8 2 Ports amp LPT Update Driver None ho 27 Standard Disable 27 Standard Stop bits 1 h 48 Processors 1 Flow control None
73. door DB a PC Indoor Quantity in Operation Mese oa ozs 028 020 uzs zs uz Branch Pipe Total Piping Length __ 2 Refigerant volume EXV Indoor Unit m 293 293 218 331 256 347 272 Opening S m Low Pressure Discharge THT Temp Condition S C inie THS Outdoor S C Outet TH10 Unt SC Bypass 2 22 8 s em 48 ___ 88 8 MES o f Coi 103 enea tt Model MDS B BR m Condition Outdoor Unit EXV Pressure Condition Outdoor Unit EXV Opening Pressure 112 Indoor Outdoor Quantity Quantity In Operation Ambient Temp Main Pipe Branch Pipe Total Piping Length enl erant Refrigerant Volume Piping DB 21 15 27 19 29 19 m esTes uon on Toe oe Indoor Unit S C EXV4 High Pressure Low Pressure Discharge TH1 S C Inlet TH9 S C Outlet TH10 5 Bypass Outlet TH11 Suction TH12 Coil In Ti _____ Unit Coil Mid Tm Coil Out To Outdoor Unit Model MDS B BR bient ndoor Outdoor ee 11 6 140 DB 21 15 27 19 29 19 di E M oum Unit Quantity In Operation Modi __________ _ 6 055 885 055 055 oos 035 035 ___ o 3 Tota
74. e is no need to set the address address remain as 0 If the outdoor is connected with these accessories then the same rules on the indoor setting apply here The rules are as follow a Each outdoor number must be unique The outdoor address cannot duplicate b The first outdoor address must be 0 Do not start the first outdoor with address 1 c While setting the outdoor address the outdoor address number cannot skip For example if there are only 4 outdoors in a system the outdoor address needs to be 0 1 2 and 3 d It is advisable that the outdoor address follow the sequence of the communication wiring For example for a 4 outdoors in the system the first outdoor after the MC501 gateway should have address 0 the next outdoor address should be 1 and the last outdoor of the communication wiring should be 3 Outdoor Address J23 124 0 ___ 1 Outdoor Address 4 R25 ha pa n3 bo ca em p bo ru e J24 a a a ze 3 31 Service Manual SM AMDS ii 53 Set up To set up indoor quantity you will need to utilize the 2 and K1 button refer to page 14 and Indoor follow the procedure below Quantity 1 Power up the outdoor 2 Press K2 for 5 second to enter parameter setting mode The 7 segments LED display will show You need to key in the password before you can make any changes The password is 0755 Press K1 to select
75. e light up Use the wireless handset select Fan mode Select Medium Fan speed Press the ON OFF button on the wireless handset to complete the setting Once the setting is complete all the indoor LED will be turned off and the unit will remain in standby mode Remark After entering the setting mode all indoor LED is if there is no operating for 60 seconds it will automatically exit from setting mode Service Manual SM AMDS ii 51 5 6 Confirm Outdoor Dipswitch Setting Similar to indoor there are also some settings need to be done for outdoor unit The unit capacity and model type are usually set before ship out from the factory However it is advisable to check on the dipswitch again before power up the outdoor As for the outdoor address it is only required when there is a series of outdoors connected and control by the central control and monitoring software For outdoor model there are two type of outdoor board MDOM PCB For AMDS A series and ABMDS 50 60 70 B BR MDS M PCB A 5 MDS 80 500 B BR 5 6 1 Setting Up MDOM PCB Basically setting up MDOM requires 3 steps 1 Setup dipswitch 1 J1 2 Setup dipswitch 2 J2 3 Setupindoor quantity K2 and K1 button Set up For outdoor unit which runs on MDOM there are 2 set of dipswitches J1 and J2 Besides Dipswitch 1 this there is also a setting mode to modify certain important parameters K2 and K1 button J1 Please refer to pa
76. eating cycle or fan mode Please refer to page 48 for dipswitch setting on heater application User can choose to install one or two heaters The control algorithm of the heaters is shown below 1 Heater When the set temperature is higher than room temperature T by 0 5 C the heater will be turned ON Ts Tr 0 5 When the set temperature is lower than room temperature T by 1 the heater will be turned OFF Ts Tr 1 2 Heater 1 0 5 T 05 1 Heater 1 When the set temperature is higher than room temperature T by 0 5 C the heater will be turned ON Ts Tr 0 5 When the set temperature is lower than room temperature T by 0 5 C the heater will be turned OFF Ts Tr 0 5 Heater 2 When the set temperature is higher than room temperature 1 C the heater will be turned ON Ts Tr 1 When the set temperature T is lower than room temperature T by 1 the heater will be turned OFF Ts Tr 1 12 Service Manual SM AMDS ii 2 5 Outdoor Valve Operation amp m o d b Close packed packing Valve stem Stopper pin nw Packing accessory D Connecting pipe accessory 7 F Cap copper packing bo ball valve G Service port m liquid side Liquid pipe diameter amp J Gas pipe diameter Field piping Other than installer
77. ect ronic expansion valve Capillary Dry filtering Service Manual SM AMDS ii 129 AMDS 1508 k Heat Exchanger 8TH Pressure Tapping Point 0 Low Pressure Sensor gt c 5 E ku a I Compressor AMDS 150BR Four way valve Filter Globe valve gt TXH Pressure tapping point 4 Low pressure sensor High pressure sensor p High pressure switch 2 Pressure tapping Oil segregator Heat exchanger Air amp liquid segregator M P Fixed capacity compressor Qu 155 og Fixed capaci compressor One way valve gt Globe valve Filter A E Electronic expansion valve Electronic expansion valve 59 130 Service Manual SM AMDS ii AMDS 180B Ball Valve Ball Valve d d _ _ Pressure Tapping Point Heat Exchanger Low Pressure Sensor Heat Exchanger a Heat Exchanger Heat Exchanger Standard Compresso Compressor AMDS 180BR Globe valve Filter Globe valve One way valve Four way valve Four way valve High pressure sensor p High pressure switch Pressure tapping point Pressure tapping point Low pressure sensor Heat exchanger Oil segregator Air amp liquid segregator x I Digital
78. eed Control Anti Freeze Protection Indoor coil sensors location and naming for cooling left and heating right The indoor unit for AMDS system is slightly different with indoor unit of ordinary split system For AMDS indoor there are additional sensors which allow precision control over temperature 120 Load 3 0k W Tully open 100 2 5kW 80 Load 2 0kW Fully close 0 201 300 361 480 steps The modulation of indoor EXV is controlled by the readings of Tin and of the indoor unit Generally the opening modulation of indoor EXV is described by the number of steps where each step refers to different EXV opening size For example if the indoor unit requires more cooling the EXV steps will increase to allow more refrigerant to flow into the indoor Fan Speed Set SEE JU CIL 18 gt AT by User Handset AT Room Temperature Set Temperature The table above shows the fan speed modulation when indoor fan speed is set to AUTO is applicable for both cooling and heating cycle For heating mode readings from sensor 15 used to control the fan speed This protection is available during cooling and dry operation Anti freeze protection will activates when is lt 2 C for 2 minutes When anti freeze protection activates all EXV valve will close Indoor anti freeze will end when Trg is 2 15
79. efer Appendix 7 1 and restart the system YES Replace indoor outdoor PCB 76 Service Manual SM AMDS ii Compressor overload Error Code Decorative Error code 7 HO to 30 to 33 For MC301 H2 to For MDOM PCB 48 to ER51 For MDS M PCB sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit Is the overload protector current setting correct Refer wiring diagram Reset and restart the system YES Is the refrigerant charge within spec Recharge refrigerant accordingly and restart the system Is the compressor resistance normal Replace compressor Replace overload protector and restart the system Service Manual SM AMDS ii 77 High low pressure switch trip error Error Code Decorative Error code 6 H6 L1 34 41 For MC301 E7 H1 L1 For MDOM 52 to 2853 ER56 For MDS M PCB Be sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn on the unit Outdoor fan motor working NO Check on power supply and wiring connection Replace outdoor fan motor if necessary YES NO Ensure no obstacle around the unit and conduct inspection on coil and filter Sufficient airflow YES Is the coil sensor and pressure sensor correctly connected
80. ening 4 High Pressure Pressure Low Pressure i Outdoor Unit S C Bypass EU e ee MDS B BR 240 Loc MN SENE RN RN 60 os Indoor 4 Quantity In Operation 8 C Model Main Pipe Branch Pipe Total Piping Length Piping Condition Refrigerant Volume 43 0 20 1 0 8 8 M A 5 E EE en 4 Indoor Coil Mid Tm Unit Coil Out T 7 9 R22 AMDS A Series Heating Cycle Reference Item Condition Outdoor Unit EXV Opening Pressure Temp 102 Model 030 Ambient Indoor DB 1 Temp Outdoor wa m am 2 a Indoor Unit Quantity in Operation 2 015 020 00 1 90 Branch Pipe Total Piping Length Total Curent 80 200 28 uum Indoor Unit 400 450 400 450 400 400 nid w 0 30 High Pressure Low Pressure Discharge TH1 Suction TH12 Compressor Bottom C Coil In Indoor Unit Coil Mid Tm Coil Out To Service Manual SM AMDS ii Mod 040 Ambient Indoor Outdoor Quantity Indoor Unit Quantity in Operation Temp Condition Piping Branch Pipe Total Piping Length Refrigerant Volume Unit Volts EXV Indoor Unit High Pressure m Low Pressure Disch
81. ensor 4 High preeziura switch Pressum checking piant Low pressum Sansar p senparater Heat exchanger Heat exchanger Frad Fixed capacity capacity Fined capacity mamprnessor compressor Gar compresso 148 Service Manual SM AMDS ii AMDS 80 100 120BHC Strainer Ball valve Check valve HP sensor switch O Access valve O LP sensor Access valve Oil separator Heat exchanger i 9 Fixed comp Digital comp Accumulator LP low pressure HP high pressure EXV electronic expansion valve Capilary Filter drier Subcooling coil 1122222 SEX lt gt AMDS 140BHC Strainer Ball valve Check valve gt LP sensor Oil separator Access valve cn a ieu a A Fixed comp Fixed comp Digital comp Accumulator EXV LP low pressure Te HP high pressure 001400 EXV electronic expansion valve Capillary Filter drier XH Service Manual SM AMDS ii 149 AMDS 160 180 Ld N Strainer Ball valve 4 Way valve Check valve LP sensor 11111 Heat exchanger Oil separator Access valve Access Fixed comp Digital comp Accumulator EZ 27 EXV Subcooling coil FERA pressure HP high pressure EXV electronic expansion valve Capillary Filter drier Check v
82. er inlet coil temperature sensor TH2 broken or loose Outdoor 1 condenser midlet coil temperature sensor TH3 broken or loose Outdoor 2 condenser inlet coil temperature sensor TH4 broken or loose Outdoor 2 condenser midlet coil temperature sensor TH5 broken or loose Outdoor ambient temperature sensor TH8 broken or loose Outdoor outlet coil temperature sensor TH9 broken or loose Outdoor sub cool outlet temperature sensor TH10 broken or loose Outdoor sub cool suction temperature sensor TH11 broken or loose Outdoor suction temperature sensor TH12 broken or loose High pressure sensor communication wire broken Outdoor PCB HS port broken Low pressure sensor connecting wire broken Outdoor PCB LS port broken Indoor and outdoor communication wire broken Indoor and outdoor communication wire loose Indoor and outdoor communication wire A and B reversed Communication wire too long should less than 1000m Outdoor PCB not power on Indoor and outdoor jump wire not correct still on update status Last indoor unit terminal resistance of communication wire not short circuit Indoor and outdoor PCB program not compatible Indoor and outdoor PCB abnormal Service Manual SM AMDS ii 6 6 Troubleshooting Flow Chart Indoor outdoor sensor failure Error code Decorative Error code 2 and 4 E1 to EC F1 to F5 11 to 1C For MC301 EO to E6 For MDOM PCB ER64 to ER75 For MDS M PCB Be sure to turn off power switch before connect
83. ervice Manual SM AMDS ii 3 EN 1 5 Maximum Piping Length The presence of sub cooling circuit within AMDS system has allowed the system to qualify for long piping application Besides that AMDS system is designed to ease oil return to the compressor and this has further improved the maximum connectable piping length for each system 22 R 410A Length m 3 SHP 67HP 832HP 6 7 HP 8 50 HP Maximum equivalent Een pri from first branch to furthest unit Between further ox 8 Maximum height between indoor unit Height between further indoor and outdoor E Maximum height Maximum length of between indoor units longest branch 1 6 Refnet and Distributor The refnet joint and distributor is provided by the factory in accordance with different indoor units This will reduce the work force at site and ease the piping installation work The dimension of refnet and distributor available is as follow Refnet Joint MDS Y1 A MDS Y2 A MDS Y3 A MDS Y4 A MDS Y5 A MDS Y6 A MDS Y7 A Distributor MDS C1 MDS C2 MDS C3 Diameter mm Diameter mm MM CE respespes 22 ss ess esL j f ee perpe 57 191 Pipe Length mm Diameter mm connector E Outer model Gg diameter wos m N N c ah N
84. ey Card Access Feature can be used for other functions such as turning off the indoor units when window is open The concept and wiring diagram will be similar to the diagram shown above Take note that the indoor unit will always be in standby condition there s power supply to the indoor PCB When the key card is inserted the unit will not turn on directly unless Auto Restart has been set Once the key card is inserted user can use the wired wireless controller to control the indoor unit When the key card is not inserted wired wireless controller will not be able to control the indoor unit When key card is removed indoor unit will stop operating standby condition Service Manual SM AMDS ii 7 16 Error Code for Phase Protector AMDS unit is equipped with Scroll Compressor which can only rotate in one direction For this reason a protective device phase protector is fitted to prevent incorrect wiring of the electrical phases When the three phases are not connected correctly the phase protector operates and the unit will not start This device is located in the control box of the outdoor unit The following table shows the LED indicator light for phase protector under normal and fault conditions LED BN Yellow Yellow Normal Operation Switch off the unit Check the 3 phase wiring Remark All error can only recover through manually reset Service Manual SM AMDS 1 157 158 Ser
85. f Ay and The corresponding numbers for and are as follow R22 Model Terminal Number for Terminal Number for By AMDS80 100 120 150 260 280 300 320B BR AMDS180 200 220 240B BR R410A Model Terminal Number for Terminal Number for A5MDS80 100 120 140 160 180 260 280 300 320 340 360B BR A5MDS200 220 240 380 400 420 440 460 480 500B BR The wiring connection between MC501 gateway and AMDS system is as follow First Outdoor with MDOM PCB emen im 4 a 4 22 3 3 5 sige E 1 1 le _ Earth the Y V screen wire Computer with Smart SE Eh V V QS Commander gt gt B Outdoor with MDS M PCB use 34 m Me SN Earth the _ wire Computer with Smart Screen Commander Service Manual SM AMDS ii 31 Computer ee Outdoor units Indoor units ane smart Commander Wiring connection for AMDS system with more than one outdoor unit For wiring connection between MC501 gateway and computer it can be done by using the cable provided to connect the gateway to serial port of computer If serial port is not available in the computer a RS232 Serial Port to USB converter cable can be use This converter cable can be obtained from any IT hardware outlet When user purchased the RS232 to USB conve
86. g indoor heat exchanger too dirty heating indoor unit filter web blocked heating indoor unit EXV not turn on properly heating too much refrigerant outdoor unit PCB high pressure output port malfunction pressure sensor broken pressure switch broken e Low pressure trip Outdoor ball valve not open Outdoor heat exchanger efficiency too low when heating Outdoor motor run abnormally when heating Refrigerant leakage or insufficient Outdoor PCB low pressure output port abnormal Low pressure sensor broken Cool Heat Sleep Fan Time Dry 77 BLINKING BLINKING Compressor overload e Digital compressor s operating current too high overload protector on Fixed compressors operating current too high overload protector on Cool Heat Sleep Fan Time Dry 80 BLINKING BLINKING BLINKING System failure e High pressure malfunction occur 3 times within 1 hour e Low pressure malfunction occur 3 times within 1 hour e Too high discharge temperature occur once Compressor overload protector shut and occur 3 times Cool Heat Sleep Fan Time Dry BLINKING Others e Examine outdoor unit for error code e Connect wired controller to the unit to retrieve exact error code Service Manual SM AMDS ii TH1 open short circuit discharge T TH2 open short circuit 18 inlet coil open short circuit 1 midlet coil TH4 open short circuit 2 inlet coil TH5 open short circuit 2 midlet coil
87. g Concealed Ceiling Cassette and Ceiling Convertible Ceiling Cassette Wall Mounted 53 7 3 8 1 1 _0 0 _1 0 __ 1 1 _0 Example 1 ON 1 ON 53 1 538 0 OFF PORE 3 1 3 8 1 1 53 1 53 8 HR 53 1 53 8 Dipswitch 4 Dipswitch 4 is reserved for software upgrade purpose This dipswitch shall remain OFF the SW4 time 5 5 Power Up All Indoor After the dipswitch setting for all indoor unit is done power up all indoors to detect any indoor which is not supplied with electricity If user wishes to have auto random restart function in their indoor units we can activate it during this time The standard indoor comes with auto random restart disabled There are two types of setting to activate the auto random restart function For ceiling concealed model which is using the wired controller MC301 the setting is done on the handset PCB itself For wireless handset model wall mounted ceiling cassette and ceiling convertible the setting can be done using the wireless handset 50 Service Manual SM AMDS ii Auto Random Restart for Wired Controller MC301 ON OFF Bee OFF Not applicable Reserved for future ON Wired handset with real time clock come as standard OFF Wired handset without real time clock 5 E 2X n 3 d pra x 41 2 kN mw
88. ge 14 for further description on their location ON 1 OFF 0 1234567 Capacity EXV Initial Opening Reserved For dipswitch 1 J1 the main function is to determine the outdoor capacity Dipswitch J1 1 and J1 2 EXV Initial Opening is only use by R amp D for testing purpose During site commissioning it is advisable not to alter the setting unless advice by factory side Dipswitch J1 3 is reserved for future used Dipswitch J1 4 to J1 7 is to determine the outdoor unit capacity 52 Service Manual SM AMDS ii Set up Dipswitch 2 J2 ON 1 OFF 0 12345678 Hefrigerant Model Qutdoor address For dipswitch 2 there are 2 main functions The first will be the type of model J2 6 and the second will be the outdoor address setting J2 1 to J2 5 Dipswitch J2 7 is for refrigerant type and J2 8 is reserved for future provision For dipswitches J2 6 model selection it will determine whether the model is a cooling only model or a heatpump model The reason of the needs of this selection is because the PCB is common for both cooling only model and heatpump model To select a cooling only model position dipswitch J2 6 to ON position and for heatpump model position it to OFF position MODEL Cooling only R 410A If the outdoor is not connected to the central control monitoring software Smart Commander or the Central Wired Controller MC303 ther
89. he software that this will be the last outdoor unit ON RS Lour TEGA 260 R59 R58 57 C19 Short jumper JP6 20 Service Manual SM AMDS ii 3 3 3 Wiring Connection Between AMDS Master and Slave Unit Em 15999055 Indoor Master Slave m 5 m wc 2 rr 2 30 31 32 S M SF Ain Bin Outdoor PCB For master amp slave model the communication connection is slightly different From the master unit amp Bin the communication wiring need to connect to the salve unit amp By before connect to the indoors Similarly to ease installation these communication terminals are already wired from the PCB to terminal block Different model has different terminal number R22 Model Master Unit Terminal Number for Aj Terminal Number for Bi AMDS120 130 150 160BM BRM 30 31 R22 Model Slave Unit Terminal Number for Terminal Number for Boc AMDS150 160BS BRS 32 33 R410A Model Master Unit Terminal Number for Aj Terminal Number for Bi R410A Model Slave Unit Terminal Number for Apc Terminal Number for B pc Note For a large system which consist of a few units of Master and Slave AMDS it is advisable to short the jumper JP6 on MDS M on the first outdoor master unit and the last outdoor slave unit 3 4 Handsets f
90. hm c L 148 34 __ 4 12722 112 34 5 140 128 Y 332 B 15 144 31B __ z 175 18 30 B 19 176 __ 284 8 21 19 2H n 24 22 23 1 28 28 209 L3 1 329 1 24 ie _ VecDChY Vout GND 7 4 Character Reference for 7 Segment LED Service Manual SM AMDS _ ii 93 7 5 Temperature Sensor Resistance Value Exclude discharge temperature sensor TH1 and ambient temperature sensor 8 Rosso 1 T C Rmin Rnom 0 2 2080 02 22040 02 2 4030 02 10 1 8030 01 14512 01 1 8620 lt 01 7840E 01 38 1 9600 02 2 0420 02 2 2180 02 12 1 6590 01 16840 01 1 7100 01 37 1 6200 01 57305 01 35 5090E 01 33 30 12400 02 12850 02 13330 02 20 12020 01 12160 lt 01 12310 01 28 1 1100 02 11500 502 11910 02 22 1110 01 27 1 0520 02 1 0880 02 1 1270 02 23 1 0690 01 1 0810 01 1 0920 01 26 9 9620 01 1 0310 02 1 0660 02 24 1 0290 01 1 0390 01 1 0500 01 25 9 4410 01 9 7620E 01 1 0090 02 25 9 9000E 00 1 0000 01 1 0100E 01 8 9520 01 9 2500 01 9 5580E 01 26 9 5230 00 9 6230 00 9 7230 00 7 9 9 3 8 8 8 7 gt 9 mire ho UJ ON mA MO A oo 23 726 5 E 9 0560E 01 16
91. hour press V to increase minutes if there is not any press for 5s it will exit without saving the changed real time If you want to confirm the new setting you need to press once again within 5s During the setting process only A and CLK are valid If other key is press it will exit to the normal status 12 Timer Setting A Single Timer Setting oingle timer setting It is active only on the same day that timer set when power on It is inactive when timer is set at AM 00 00 It can be set at AM 00 00 if you want to cancel some timer setting Press TIMER key for 5s enter single timer setting When the unit is ON it can only be set to TIMER OFF When the unit is OFF it can only be set to TIMER the TIMER SET will display on LCD panel press A to set hour and press set minute press to finish the single timer setting B Week Timer Setting Week timer setting Include total 28 on off timers 7 days every week and 4 timers every day Press WEEK SET and TIMER SET will display on the left and bottom of LCD panel press or to select a day Sunday to Saturday press again the day is selected the timer s states of the selected day will display on LCD Panel Enter first timer setting the timer ON or OFF icon will display on the left and bottom of LCD panel the timer sequence number 1 will display on the
92. ill display NULL on the 7 segment LED display When the outdoor unit is running cooling mode COOL will be displayed 58 Service Manual SM AMDS ii 5 8 Start All Indoors After confirming that the AMDS system is ready in standby mode without any faulty operation or error code turn on all indoor units one by one This can be done through the commissioning software or manually turn on each indoor unit individually Set the indoor temperature according to the design requirement There are a few things which we need to check for outdoor and indoor Outdoor checking Check the compressor status ON OFF and its running capacity as it should react according to the system s need Check the high side HS and low side LS pressure to ensure they do not exceed the designed limit Check the readings of discharge temperature sensor TH1 and ensure it do not exceed the designed limit Check the opening of EXV4 and subcool temperature TH9 TH10 for cooling mode Check is there any error code from the outdoor unit Indoor checking Check the handset s functionality for each indoor such as setting swing mode and see whether or not the indoor unit is responding towards the 5 signal Check the readings of indoor temperature sensor Ti Tm and and ensure they are normal Check the opening of the EXV box and ensure it is functioning normally Check is there any error code from the indoo
93. ing indoor unit filter web blocked heating indoor unit EXV not turn on properly heating too much refrigerant outdoor unit PCB high pressure output port malfunction pressure sensor broken pressure switch broken Low pressure malfunction occur 3 times within 1 hour Outdoor ball valve not open refrigerant leakage or shortage outdoor unit PCB low pressure output port malfunction low pressure sensor broken Too high discharge temperature occur once outdoor unit motor broken cooling outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor unit EXV not turn on properly heating indoor unit EXV not turn on properly refrigerant leakage or shortage outdoor ball valve not open Compressor overload protector shut and occurs 3 times too much current flow in the compressor compressor overload protector protecting value wrongly set Outdoor motor broken cooling Outdoor circulating air short circuit cooling Outdoor heat exchanger too dirty cooling Outdoor ball valve not open Indoor circulating air short circuit heating Indoor heat exchanger too dirty heating Indoor unit filter blocked by dirt heating Indoor EXV not on properly heating Refrigerant over charged Outdoor PCB high pressure output port abnormal Pressure sensor broken Pressure switch broken Digital compressor operating current too high overload protector on Fixed scroll compressor operating current too high overl
94. ion into a report From the report itself the proposed additional amount of refrigerant required are stated in the report System Name 0001 MDS120BR410 33 0 37 OkW Actual capacity ratio 9290 4176 Input Power S kW Voltage 380V 3N 50Hz Positive height difference 0 0m C The maximum pipe length 25 0m Charge refrigerant 3120 g C ndoor cool congition DB27 0 WB198 C ndoor heat condition DB20_0 WB15 0 Additional charge required Manual calculation To use this method the user is required to get the whole piping schematic diagram After that user will need to know the exact pipe length and their respective diameter Then user will need to sum up the piping length used on the liquid pipe only base on different diameter Once the piping length of different diameter is obtained apply the length into the formula below to calculate additional refrigerant required Additional charge amount gt Li Gi Example Piping Length for 15 88mm X Additional Charge Amount Piping Length for 12 7mm X Additional Charge Amount Piping Length for 9 52mm X Additional Charge Amount Piping Length for 6 35mm X Additional Charge Amount Caution that the additional charge amount of different pipe diameter varies base on type of refrigerant Pipe Diamater mm 9 52 12 70 15 88 19 05 Pipe Diamater mm 5 Service Manual SM AMDS ii 47 5 4 Confirm Indoor Dipswitch Setting For AMDS system ever
95. is only allowed to change the suction temperature The allowable range is from 2 C to 15 C Default value is 6 C Manual control valve open degree ERI Defrost curve B point The outdoor ambient is set at 15 User is only allowed to change the suction temperature The allowable range is from 30 C to 15 C Default value is 24 Note If the value is smaller the defrost area shaded area I will become smaller This means that it is harder the system to enter the defrost cycle After the system had enter the defrost cycle the system will terminate the defrost cycle faster TH12 C Suction 5 10 x as 20 z TH8 Ambient 30 30 20 10 0 10 20 Defrost Area Definition 42 Service Manual SM AMDS ii Defrost Finish Temperature The defrost cycle will stop once TH9 exceed this set point The lower the temperature the faster the defrost cycle will end The allowable range is from 10 C to 50 C Default value for A 5 MDS80 240B BH is 15 for A 5 MDS260 500B BR is 18 Defrost Interval Time The interval time between defrost cycle The smaller the value the shorter time between the defrost cycle The allowable range is from 25 minutes to 90 minutes Default value is 45 minutes Defrost Operation Time The duration of the defrost cycle The smaller the value the short
96. ischarge temperature too high TH1 Super heat protecting value too small Low pressure too low Service Manual SM AMDS ii Master unit and slave unit communication wire reversed Master unit and slave unit communication wire broken or loose Slave unit toggle switch set wrongly Master and slave unit PCB version conflict different Digital compressor operating current too high overload protector OL4 on Fixed compressor 1 operating current too high overload protector OL1 on Fixed compressor 2 operating current too high overload protector OL2 on Fixed compressor 3 operating current too high overload protector OL3 on Outdoor motor broken cooling Outdoor circulating air short circuit cooling Outdoor heat exchanger too dirty cooling Outdoor ball valve not open Indoor circulating air short circuit heating Indoor heat exchanger too dirty heating Indoor unit filter blocked by dirt heating Indoor EXV not on properly heating Refrigerant over charged Outdoor PCB high pressure output port abnormal Pressure sensor broken Pressure switch broken High pressure sensor communication wire broken Outdoor PCB HS port broken Outdoor motor broken cooling Outdoor circulation air short circuit cooling Outdoor heat exchanger too dirty cooling Outdoor EXV not on properly heating Indoor EXV not on properly heating Refrigerant leakage or insufficient Outdoor ball valve not open Indoor motor not work when cooling
97. key it will exit to the displaying status Press CLK again is the CLOCK icon will display and the current real time clock is twinkling At this time press A to increase the hour press Y to increase minutes if there is not any press for 5s it will exit without saving the changed real time If you want to confirm the new setting you need to press once again within 5s e During setting only A Y and CLK are valid If other key is press it will exit to normal status 10 Reset This key is used to reset the unit 11 Timer Setting e Week timer setting Include total 28 on off timers 7 days every week and 4 timers every day e Single timer setting It is active only on the same day that timer set when power on It is inactive when timer is set at AM 00 00 It can be set at AM 00 00 if you want to cancel some timer setting Press and at one time all timers setting can be cancelled e Timer display The current timer setting will display every 2s The third bit of the K1 micro switch of PCB board must be set ON if PCB has clock chip and battery otherwise the real time clock will not be activated once power is shut off A Week Timer Setting Press TIMER WEEK SET and TIMER SET will display on the left and bottom of LCD panel press or V to select day Sunday to Saturday press again the day is selected the timer s
98. l Total Piping Length Length Piping Branch Pipe Volume ota Guenter Indoor Unit S C EXV4 High Pressure Coil RET Coil Out To Indoor Unit STEP m a EDICION 552 453 54 104 Service Manual SM AMDS ii Model MDS B BR Ambient Indoor Temp Outdoor Quantity Quantity In Operation Condition Outdoor Unit EXV Indoor Unit Opening S C EXVA High Pressure Pressure Low Pressure Discharge TH1 S C Inlet TH9 Outdoor S C Outlet TH10 Unit S C Bypass Outlet TH11 Temp Suction TH12 Compressor Bottom oil In Ti PEN Coil Mid Tm JE Model MDS B BR Ambient ndoor Temp Outdoor Quantity Condition EE Outdoor Total Current EXV Indoor Unit Opening S C EXV4 High Pressure Pressure Low Pressure Outdoor Unit Temp Service Manual SM AMDS ii 21 15 2119 088 385 a E 88 88 o 88 113 Model MDS B BR Ambient Indoor Temp Outdoor Quantity Indoor Unit Condition Main Pipe Branch Pipe Total Piping Length Refrigerant Volume Outdoor Total Current Unit Volts EXV Indoor Unit Opening S C EXVA High Pressure Pressure Low Pressure Discharge TH1 S C Inlet TH9 Outdoor S C Outlet TH 10 Unit S C Bypass Outlet TH11 Temp Suction TH12 Compressor Bottom Cail Indoor Coil Mid Tm Coil Out To Model MD
99. ll valve _ Fixed capacity Fixed capacity Fixed capacity compressor compressor compressor NL pH Fitter Bal valve Supper cooling Service Manual SM AMDS ii 145 A5MDS 380 400 420BR Master Unit Filter Ball valve P One way valve Air bypass valve m soreo 4 High pressum switch Pressure checking pioni Pressure checking pont n Low pressure sanad separater Ball valve Fixed capacty Fixed capacity Digital i COMP TER SOT Compressor COImpressor gt eem Fiter valve Slave Unit Filter drier EF Rev d way Rev 4 Capillary valve E E valve SA a E bypass valve Pressure checking Low pressum sensor Heat exchanger 7 E d LY Heat exchanger L Accumulator One way 7 valve k B 82 valve al Fixed capacity Fixed capacity compressor compressor p c px EXV Filter Ball valve Sup per cooling Filter m 146 Service Manual SM AMDS ii ASMDS 440 460 480 500 Master Unit Raw Filter valve valve x Lp High pressure srao 1 4 High pressure swibch 2 checking piant Pree checking plar Lew pnm
100. ll be 5 for R22 and 3 for R410A model Outdoor super heat Tsh T12 Suction Temp Te Saturation temperature EXV1 2 and EXV4 This is to manually control the opening of the EXV It is only applicable for AMDS B series outdoor A 5 MDS 80 500 B BR 1 2 3 is only use during heating cycle It remains shut during cooling or defrosts cycle These EXV will not be available in cooling only model EXV 4 is only use during cooling cycle and remains shut during heating cycle Manual control valve open degree Ew ES Service Manual SM AMDS ii 43 Connection 1 10 2 0 3 0 Connection 1 Not applicable for future provision Connection Param 2 Refers to compensation for long piping application Default setting is 10 Setting range from 10 to 50 It is used to increase capacity of outdoor during low load condition only a few indoors are turned ON For example when it is set to 15 indoor capacity will be multiply by 1 5 times When the piping is long the outdoor will increase the output capacity to match the losses along the piping to ensure the indoor received the sufficient capacity Connection Param 3 Compensation for heating cycle Default value is 37 indoor coil middle temperature is too low outdoor will increase capacity to achieve the set value Beside the Modify Outdoor Unit Parameter there is another button calle
101. llation is completed the prompt up screen will Commander disappear In order to confirm whether the software is already installed or not the user can checked it under the program location EE c A LAGZAZ All Programs Smart Commander b om Smart Commander Step 4 To start up the software user will need to insert the USB Dongle Key into the Run the program computer This USB Dongle key is crucial as every time the Smart Commander is executed or in operation the software will refer to this key Only remove this after the Smart Commander software is closed Take note that the same USB port must be used when running this key USB key for AMDS commissioning software USB Port 30 Service Manual SM AMDS ii 4 4 Wiring Connection MC501 gateway acts as a bridge in converting and transmitting signals and allows communication between computer and AMDS system The wiring connection is basically divided into two sections a Wiring connection between outdoor and gateway length must 1000m between last outdoor and gateway b Wiring connection between gateway and computer length must 2m For wiring connection between outdoor and gateway the communication cable is directly connected from outdoor terminal to the gateway where and from outdoor connect to A1 and B1 on MC501 gateway respectively For certain models the outdoor terminal will be labeled with numbers instead o
102. lve Air bypass valve Pressure checking piont D Low pressure Sensor p Heat exchanger bs Pressure checking plant Accumulater Fixed capacity Fixed capacity Fixed capacity Digital compressor compressor Compressor Ea EXV Filter Ball valve Sup per cooling Ex coil Filter drier Capillary 140 Service Manual SM AMDS ii ASMDS 260 280 300 Master Unit Fier One way valve Pressure checking piant 4 Law pressune High Oll separater High pressure ing nn m 5 m Accumulator i valve tank _ Fed capacity Diyta Sor CO SLO Supper cooling a EH E T rier Pressum checking pini One way valve 4 Low pure mp mr High pressure separater High pessum witch checking o Heal exchanger exchanger Fmed Fired capacity Fixed capacity compr essor compressor compressor _ Fitter valve Sup per coobing i Capillary Service Manual SM AMDS _ ii 141 ASMDS 260 280 300BR Master Unit Rev 4 way Filter valve valve I S sl g Pres aure checking
103. n which will refresh the indoor air effectively 7 Sleep Mode Setting e This function is available under COOL HEAT and AUTO mode e When under cooling mode the set temperature is increased by 0 5 C after 30 minutes 1 C after hour and 2 after 2 hours When under heating mode the set temperature is decreased by 1 after 30 minutes 2 C after an hour and 3 after 2 hours 8 Operating Mode Press the MODE button to select the type of operating mode e For cooling only unit the available modes COOL DRY and 9 Fan Speed Selection e Press the button continuously will toggle the fan speed in the following order Low gt Med 9 High gt Auto e Stop pressing when the desired fan speed appears on the display screen 22 Service Manual SM AMDS ii 10 Button 11 Timer Cancel 12 OFF Timer Setting 13 ON Timer Setting 14 Turbo Function e Press for fast cooling e Fan speed turn to maximum speed e Press again to deactivate the function 15 Clock Time Setting e Press and hold to set the clock time Service Manual SM AMDS ii 23 3 4 2 Wired Controller MC301 LC D WIN DOW POWER RUM C __ HEATER SWINBG SLEEP 1 ON OFF Operation e Press ON OFF key the unit will be ON or OFF and OFF will display on the LCD 2 Temperature Setting Use or V keyboard to increase or decrease by 1 C F
104. n it and restart the system Check the indoor pump Is it functioning normally NO Is the indoor unit installed properly Replace indoor pump Align the indoor unit properly and restart the system Service Manual SM AMDS ii 75 Communication error Error Code Decorative Error code 1 FC L3 For MC301 C to CX For MDOM PCB to 47 EC78 For MDS M PCB Be sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn on the unit Is the PCB turned on Check the power supply Turn off the unit Check is the connection of communication wire loose Tighten the wire and restart the system Replace the wire and restart the system Check is the communication wire broken shorted Reverse the communication wire and restart the system Check the communication wire Is A B reversed Is communication wire too long Should not exceed 1000m YES Reduce the length of the communication wire and restart the system NO NO Short jumper JP1 and restart the system Is last indoor PCB jumper JP1 shorted YES Is the PCB dipswitch YES setting correct ip DIP switch and restart the Is the Dipswitch in Syste update status NO Upgrade downgrade the PCB Is the indoor and outdoor NO Pg 9 tible software version or change PCB version compatible R
105. nd 51 2 need to be located to ON position The control algorithm of the heaters is shown in page 12 For dipswitch 51 3 Water Pump it will be set to ON position for all ceiling cassette unit The drain pump will operate when the indoor unit is turned ON The water pump will stop operation if the water level sensor is in OPEN condition For dipswitch 51 4 until 51 6 currently is reserve for future used 48 Service Manual SM AMDS ii Dipswitch 2 ON 1 OFF 0 123456 Address Dipswitch 2 is for address setting Each indoor unit within the same outdoor unit must have different address The table below shows the indoor address setting 52 1 52 2 52 3 52 4 52 5 52 6 Indoor Address 52 1 52 2 52 3 52 4 52 5 52 6 Indoor Address 0 0 13 9 o i LX 20 1 0 3 jq 9 pu 09 ioff 5 1 LT 9 EE LT 1 oO 0 oO 30 32 ___ X O33 1 0 _ of 1 1 5 oO 0 0 _0 1 _0 _1 0 _0 _0 oO 0 1 oO i 0 44 _ 1 1 1 14 2 1 1 1 1 47 oO 0 _1 0 1 1 0 0 0 71 om E
106. ndoor such as wall mounted ceiling cassette and ceiling convertible the error code will display via the blinking of the LED For units that are connected to the wired controller MC301 such as ceiling concealed the error code will display on controller screen For outdoor unit the error code generated will display on the 7 segments display on outdoor PCB Each of these locations is indicated as below Error code display for decorative indoor Blinking LED ES Remark lonizer LED does not contribute to error code blinking Error code display for wired handset Error code display for outdoor unit Error code 1 208 P 1 2 2 7 Wt o 2 e e c 24 7 Miu 7 di Ox ag y L Remark For error code of phase protector only applicable to 3 phase model kindly refer to Appendix 7 16 60 Service Manual SM AMDS ii 6 2 Error Code for Decorative Type Indoor Page Error Code 1 Cool Heat Sleep Fan Dry Timer 76 BLINKING Description Communication error Indoor and outdoor communication wire broken Indoor and outdoor communication wire loose Indoor and outdoor communication wire A and B reversed Communication wire too long should less than 1000m Outdoor PCB not power on Indoor and
107. oad protector on Outdoor ball valve not open Outdoor heat exchanger efficiency too low when heating Outdoor motor run abnormally when heating Refrigerant leakage or insufficient Outdoor PCB low pressure output port abnormal Low pressure sensor broken 69 6 5 Outdoor Error Code for MDS M PCB Error R410 ERSE 47 u ER52 ER53 ER54 70 Wrong combination of PCB and software Wrong combination of PCB and software Wrong dipswitch setting 00 47 indoor unit communication failure Digital compressor overload Fixed compressor 1 overload Fixed compressor 2 overload Fix compressor 3 overload Discharge pressure too high Suction pressure is too low Outdoor unit s IC error PCB hardware is designed for R22 but software for R410A unit is installed into it PCB hardware is designed for R410A but software for R22 unit is installed into it Outdoor dipswitch setting wrong Outdoor model dipswitch setting wrong Indoor 002 47 and outdoor communication wire broken Indoor 00 47 and outdoor communication wire loose Indoor 00 47 and outdoor communication wire A B reverse Indoor 002 47 and outdoor jump wire not correct still on update status Indoor 00 47 and outdoor PCB program not compatible Indoor 00 47 and outdoor PCB abnormal Digital compressor operating current too high overload protector OL4 on Fixed compressor 1 operating curren
108. on Sharp edges and coil surfaces are a potential injury hazard Avoid contact with them Warning Moving machinery and electrical power hazard may cause severe personnel injury or death Disconnect and lock off power before servicing equipment Service Manual SM AMDS ii 1 0 Introduction 1 1 Digital Scroll Compressor AMDS system is utilizing the digital scroll compressor technology to modulate its supply capacity to meet most indoors requirement closely AMDS system offers both R22 and R410A refrigerant the product line up together with number of compressors in one outdoor unit is as follow AMDS30A R 1 820 AMDS40A R 1 1 52 820 27 AMDS50AR 1 12 820 AMDS60AR 1 82 27 AMDS70A R 1 12 82 7 1 11 R22 O AMDS100B R 1 RR AMDS120BR 1 _1 82 AMDS150B R 1 1 RA AMDS180B R 1 J RA AMDS200B R 1 J RA AMDS220B R 1 J 3 J R22 AMDS240B R 1 RA AMDS 120B R M AMDS 150B R S AMDS 150B R M AMDS 130B R S AMDS 150B R M AMDS 150B R S AMDS 160B R M AMDS 160B R S ASMDS50B R 1 _ RAA ASMDS60B R 1 RAA ASMDS70B R 1 __ RAA ASMDS 80B R ASMDS100B R 1 1 RAA ASMDS 120B R 1 121 J RAA ASMDS140B R 1 2 71 RAHO ASMDS160B R 1 1 2 RAO ASMDS 180B R 1 J 2 J RAHO ASMDS 200B R 1 1 3 RAO AS
109. on the Back Page or Next Page button the whole set indoors will be change e Enter the indoor address number This will directly display the indoor the user selected to view Indoor Address Location To change the setting on the indoor user will need to click on the Ctrl button After the button is clicked a new window will prompt out The top part of the new prompt window displays the information of the indoor Outdoor No The outdoor address this particular indoor is connected to If there is no outdoor address set the default value will be O Indoor No address set on the indoor This is based on the PCB setting Name The indoor model and capacity Version Indoor PCB software version In the State column the current running mode room temperature set temperature and fan speed for the indoor unit is displayed These setting may be changed in the Control column Mode Operating model of the indoor unit Stop Cooling Heating Dry Fan Fan Speed operating fan speed Available speed High Medium Low Auto Set Temp set the required temperature of the indoor Unit C range from 16 C to 30 Sleep Mode Indoor unit to operate in sleep mode Auxiliary Heater activate additional heater if any Swing Air swing Not applicable for conceal ducted model Locked forbidden the usage of handset Reset when the indoor power is turned off 40 Service Man
110. oor i 0 0 Y Indoor Unit Unit No Data TH8 Display Min value of Y axis Unit Scale s Input Data 3458 MD8240BR410110 __ Click to display Display the data Display the data Input the graph of selected date of real time file Output Data A new window will prompt out allowing user to save the data in excel sheet to personal Data output x utput Path I Data list 2007 01 09 10_13_11 Service Manual SM AMDS 1 41 4 6 3 Additional Function Unit setting may be modified by clicking Modify Outdoor Unit Parameter under Circuit Monitor screen It is advisable not to change any data unless under the instruction from the factory side The default value set had been decided after numerous testing conducted by R amp D and should be suitable for most condition Modify Outdoor Unit Parameter A new window will prompt out when the user click on the Modify Outdoor Unit Parameter button in circuit monitor page Modify QutParam Connection OParam Defrot curve 4 point 5 2 Defrot curve point 24 finish temperature interval time 45 4 Defrot Operation Time Defrot delay time superheat degree jo Action Action Default setting e Defrost curve A B point It is used to define defrost area For the defrost curve A point the outdoor ambient is set at 6 C User
111. or Fix Scroll Compressor will turn ON 4 When Fix Scroll Compressor is ON Digital Scroll Compressor will continue to modulate the refrigerant flow accordingly 1 2 Operating Range Cooling Cycle 43 CDB 16 CWB 10 15 CWB Heating Cycle AMDS unit is tested under standard condition 27 DB 19 C WB Indoor and 35 DB 24 C WB Outdoor for cooling 20 DB 15 C WB Indoor and 7 DB 6 C WB Outdoor for Heating and should operate within the range stated in diagram above Service Manual SM AMDS 1 1 3 Basic Layout of AMDS System Generally AMDS system consists of outdoor unit indoor unit refnet or distributor and EXV box 1 4 Maximum Connectable Indoor AMDS system is very flexible and versatile as one outdoor unit can be connected to multiple indoor units The table below shows the maximum connectable indoor units for each outdoor AMDSSOMR 5 AMDS40A R AMDSS50A R A5MDS50B R 8 _AMDS60A R ASMDSG6OB R 9 CE AMDS150BN R ______ AS5MDS160B R R J R AMDS 300B A5MDS 300B R R JJ A5MDSS360B R ASMDSS380B R AS5MDS4O0B R AS5MDS420B R 7 ASMDS440B R 5 4608 8 ASMDS480B R pM A5MDS 500B R ____ S
112. or AMDS System There are various types of handsets which can be used to control AMDS indoor units For decorative indoor unit such as wall mounted ceiling cassette and ceiling convertible wireless handset will come as a standard controller For ducted unit such as ceiling concealed and ducted blower wired controller MC301 will come as standard handset Furthermore user may choose to use Central Controller MC303 which can connect up to 32 indoors to provide group control Service Manual SM AMDS ii 21 3 4 1 Wireless Handset G18 1 Transmission Source 2 Signal Transmission Indication e Blink to confirm that the last setting has been transmitted to the unit 3 Temperature Setting Temperature setting range is from 16 C to 30 optional setting 20 to 30 4 Personalize Setting e Press dh and hold for 3 then will blink Press again to cycle between amp 4 e Set the desire setting then leave the handset for 4s without pressing any key and it will save the setting into the program Press once to activate the P1 setting press again to cycle between P1 and P2 Press any key to deactivate the personalize setting 5 Automatic Air Swing optional e Press the SWING lt gt button to activate the automatic air swing function Press again to stop the louver at the desired direction 6 lonizer Function For WM G series only e Press button to activate the negative ion functio
113. or disconnect connector Caution or parts damage may be occurred Turn off the unit Connect correctly and operate again Is the sensor correctly connected Is the sensor resistance characteristics normal efer Appendix 7 5 YES Replace PCB Replace sensor Remark OD Outdoor ID ndoor Spec Specification PCB Control Module Control Board Service Manual SM AMDS ii 73 Outdoor pressure sensor error Error Code Decorative Error code 5 H5 L2 35 42 For MC301 ER76 and 77 For MDS M sure to turn off power switch before connect disconnect connector Caution or parts damage may be occurred Turn off the unit Is the wire connection Replace the wire and restart the to pressure sensor broken system Check the HS LS port Fix the port replace PCB and on outdoor PCB Normal restart the system YES Is the resistance of the Replace the sensor and restart pressure sensor normal the system Refer Appendix 7 3 YES Replace PCB 74 Service Manual SM AMDS ii Indoor pump error Error Code Decorative Error code 3 FB For MC301 Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn on the unit Replace the water level switch Check the water level switch Is it functioning normally Check the drain hose and pump for blockage Clea
114. outdoor jumper not correct still on update status Last indoor unit terminal resistance of communication wire not short circuit Indoor and outdoor PCB program not compatible Indoor and outdoor PCB abnormal Possible causes Error Code 2 Cool Heat Sleep Fan Time Dry 73 OFF BLINKING Description Indoor sensor error Possible causes Indoor sensor broken or loose Error Code 3 Cool Heat Sleep Fan Time Dry 75 OFF BLINKING OFF Description 5 Q O O 3j Possible causes Water level switch broken Indoor pump broken Error Code 4 Cool Heat Sleep Fan Time Dry 73 OFF BLINKING BLINKING Description Outdoor sensor error Possible causes Outdoor sensor broken or loose Error Code 5 Cool Heat Sleep Fan Time Dry 74 BLINKING BLINKING ON Description Outdoor pressure sensor error High low pressure sensor broken or loose Outdoor PCB HS LS port broken Possible causes Service Manual SM AMDS ii 61 Error Code 6 Description Possible causes Error Code 7 Description Possible causes Error Code 8 Description Possible causes Error Code 9 Description Possible causes Cool Heat Sleep Fan 78 BLINKING BLINKING High low pressure switch trip e High pressure trip outdoor unit motor broken outdoor circulating air short cooling outdoor heat exchanger too dirty cooling outdoor ball valve not open indoor circulating air short heatin
115. ow Pressure suction TH12 Outdoor Unit Subcooling Coil Outlet TH10 22 cooling Circuit Outlet TH11 C 54 234 328 388 Indoor Unit 124 Service Manual SM AMDS ii Outdoor Unit Model NMDS160BHC T 4 OH HD Connecting Pipe O po Eg Length Total _____5 y E Outdoor Unit Vds 38 Power Input Number Of Indoor Unit EXV Opening Steps Step 1 1 16 145 171 15 175 1 2 asses 160 172 156 176 Number EXV Opening Steps Je ee a 114 Pee Ae Low Pressure es il Inlet TH9 Subcooling Coil Outle TH10 C 24 X 284 384 39 Subcooling Circuit Outlet TH11 C _ 189 276 405 424 Comp Bottom ______ _ 4 amp 1 594 CollnetiTi _ 61 9X 93 593 139 O Suction 12 84 Outdoor Unit Middle Tm Cail Outlet To Outdoor Unit Model MD5180BHC m he E o3 Connecting Refrigerant Charge Outdoor Unit Power Input EXV nber Of In it EXV Opening Steps 134 147 133 161 117 136 123 145 High Pressure Pressure Low Pressure 12 CDE RME AER 7 _ 90 1096 1126 Subcoolinc Coil Inlet TH9 283 384 505 530 Outdoor Unit gre Subcooling Coil
116. p aeparater Heat exchanger Fined capacity Fined capacity Slave Unit p gh pesare sensor High pressune smit 9 Presume checking piant Pm cure checking pnt Low press sure separater One way valve Heat exchanger Ball valve Fimed Fixed Fined capacity ser 4 EXV Ball coll Filier drier E Capillary Service Manual SM AMDS ii 147 ASMDS 440 460 480 500BR Master Unit Rev 4 way Filter Ball valve 3 gt PA One way 4 way bypass High pessure sensor 4 High preeziura switch 1 Pres aue checking piant Pressure checking pont Law pressure sene Or separater Heat exchanger j 5 a 1 Wave Fixed Fixed capacity Fixed capacity Digital HI capacity compessa compressor cympressor compressor n EXV Supper coeling 5 Slave Unit Filter drier R rrd Capillary A gt Le UR Rum vave Fiter Baill val Arr bypass valve 1 Pres checking 1 High pressure s
117. panl Low ier scr Premie checking piani valve __ a oO One way valve 1 EXV Filler Ball v Filter dier 7 Slave unit _ t d way d way valve valve Fier vahe p gt One way valve 2 bypass valve 1 Pressure checking pibnt 4 Low pressure gera High posau sensor gt separater High premure amh Peate decking piant 142 Service Manual SM AMDS ii ASMDS 320 340 360 Master Unit Filter Bal sa 0 Pressure chacking plant One way yave 4j LOW pressure sermor Heal exchanger ay Ae cumulator walve Ball I Fixed capacity Fixed capacity Digital compressor compressor compres sor 3 Alter Ball Slave Unit Fitar Bal wawa Pope dde Pressum checking Oneway valve Los preezuna Sensor zn E M Ball One way valve valve Fixed capacity Fixed capacity Fixed capacity aum i T compressor campressor Le Filer valve Piller drier Capillary Service Manual SM AMDS ii 143 A5MDS 320 340 360BR Master Unit Filler Bal vae oH Rev valve O Presume checking piant Air bypass vale One way valve Low pressum sensor Oil separator E Pressum
118. pressor overload protector jumped for 3 times Slave unit discharge temperature sensor TH1 broken or loose Slave unit 1 inlet coil temperature sensor TH2 broken or loose Slave unit 1 midlet coil temperature sensor TH3 broken or loose Slave unit 2 inlet coil temperature sensor TH4 broken or loose Slave unit 2 midlet coil temperature sensor TH5 broken or loose Slave unit ambient temperature sensor TH8 broken or loose Slave unit outlet coil temperature sensor TH9 broken or loose Slave unit sub cooling outlet coil temperature sensor TH10 broken or loose Slave unit sub cooling suction temperature sensor TH11 broken or loose Slave unit suction temperature sensor TH12 broken or loose Premise part indoor communication failure Slave unit suction super heat less than 1 C for 15 minutes persistently Slave unit TH12 malfunction Slave unit PCB chip data read failure by outdoor unit when power on Slave unit PCB chip broken Service Manual SM AMDS ii Ambient temperature is out of operation limit range slave unit Digital compressor overloaded slave unit Fixed compressor 1 overloaded slave unit Fixed compressor 2 overloaded slave unit Fixed compressor 3 overloaded slave unit High pressure too high slave unit High pressure sensor malfunction slave unit Discharge temperature too high slave unit Super heat protecting value too small slave unit Low pressure too low slave unit Low
119. r Setting Smart Commander Step 8 A new window will prompt up for parameter setting To change the communication port go to Port and click on the down arrow Select the appropriate COM port number and click OK Base on the previous example the USB to RS232 Serial Port is Hence is selected Please note that the communication port COM on each laptop will be different IMin Operating Interval Min Operating Time Locked Time gt Ofi Time ew Service Manual SM AMDS 11 35 Step 9 After the setting of COM port is completed the user can connect to the system Go to drop down menu Function E again and select Initiating to connect to the AMDS System Error History State History Once the software is connected to the system all available parameter of the system Indoor and Outdoor will be visible No 0 MDSOS0B410 Modify Outdoor Unit Parameter Special order els zn Sample of Initial Screen for Smart Commander Service Version 36 Service Manual SM AMDS fii 4 6 Smart Commander Software Interface Smart Commander Service version has two different windows The first window is named Circuit Monitor User is allows to control and monitor the indoor and outdoor parameter under this windows The Server Moni
120. r minimum 10 minutes 3 Unit entered to defrost mode for minimum 2 minutes amp TH9 temperature before SCO is more than 15 8 Service Manual SM AMDS ii Fan Speed Fan Speed Control HIGH LOW STOP High Pressure bar R22 13 16 17 18 R410A 17 6 22 24 27 5 Outdoor fan speed control cooling mode Fan Speed Mode G G G A 884 pen D 29595 Ambient E Temperature 1 2 5 5 6 5 12 15 16 18 Outdoor fan speed control heating mode Protection AMDS system has several sensor and pressure switch for protection purpose Devices e Discharge pressure protection switch Suction pressure protection sensor Discharge temperature protection for Digital Scroll Compressor Compressor overload protection e Fan motor overload protection Others For Fix Scroll Compressor Minimum 3 minutes of start up delay protection is available For Digital Scroll Compressor When digital compressor overloaded or discharge pressure too high system will stop the outdoor for 3 minutes System error will declare when outdoor unit stops for 3 times within 1 hour 1 lt 105 C outdoor unit operates normally 1 gt 130 C outdoor unit forced to stop 105 C lt TH1 lt 130 C for 2 minutes outdoor unit enter protection mode Service Manual SM AMDS ii 9 2 2 AMDS Indoor System and Control EN Sensor Location EXV Control Fan Sp
121. r unit 5 9 Monitor Outdoor Parameter After the commissioning personnel added in the additional refrigerant it is advisable that they monitor the outdoor parameter In order to guide the commissioning personnel the factory side had provided a set of outdoor parameter for reference There are 3 sets of reference data provided 3 sets for cooling cycle and 3 sets for heating cycle These data will serve as a guide on the possible operating condition of the unit Once the outdoor parameter reach or close to the proposed data the charging of the refrigerant can be stop The commissioning personnel will need to continue to monitor the outdoor parameter for some time 1 2 to 1 hour If the outdoor parameters remain constant or very small movement the commissioning can be concluded For details kindly refer to the following Appendix for the required model Appendix 7 7 R22 AMDS A Series Cooling Cycle Reference Appendix 7 8 R22 AMDS B Series Cooling Cycle Reference Appendix 7 9 R22 AMDS A Series Heating Cycle Reference Appendix 7 10 R22 AMDS B Series Heating Cycle Reference Appendix 7 11 R410A AMDS B Series Cooling Cycle Reference Appendix 7 12 R410A AMDS B Series Heating Cycle Reference Appendix 7 13 R22 AMDS BHC Series Cooling Cycle Reference Service Manual SM AMDS 1 59 6 0 Troubleshooting 6 1 Locating Error Code Error code will show on both indoor and outdoor units when the system malfunctions For decorative type i
122. rter cable it will come together with a CD which consist the driver Kindly install the driver accordingly The interface will be different base on the supplier hence this manual cannot give any guideline or any indication RS485 to RS232 cable Provided from the factory Gateway Wiring connection from MC501 gateway to computer through serial port Laptop USB Port R5232 to USB converter cable self purchas e Gateway Wiring connection from MC501 gateway to computer through RS232 to USB converter cable 32 Service Manual SM AMDS ii 4 5 Setup of Smart Commander After completing the wiring connection for MC501 gateway setup process continue to determine the communication port which will be sending and receiving signals between computer and gateway If you are using the serial port cable provided from factory you may jump straight to step 6 and set COM 1 as your port number If you are using the Serial port to USB converter cable please go through all the following steps The steps will be quite complicated Hence kindly read through before try out on the PC Step 1 Go to Start and select Control Panel Microsoft Office E Control Panel J PowerPoint 2003 Defaults Calculator Printers and Faxes Paint Help and Support Adobe Acrobat 8 gt Search Professional 377 Run S33 Microsoft Office Document gt Imaging a Conne
123. ssure Se TH1 To Indoor Unit TH t Pressure Tapping Point Tapping Point Low Pressure Sensor Heat Exchanger Ball Valve ic Accumulator Standard Compressor Compressor Standard Check Valve Ball Valve TH11 Service Manual SM AMDS ii 133 AMDS 26088 Filter Globe valve Master unit Four way valve Pressure tapping point Low pressure senso One way valve High pressure sensor p High pressure switch B Pressure tapping point o Oil segregator Air amp liquid segregator Globe valve Heat exchanger One way valve Globe valve een Electronic expansion valve Capillary Dry filtering aD Electronic expansion valve T Slave unit Fou way valve Filter poco F One way valve Pressure tapping point Low pressure sor High pressure sensor p Oil segregator High pressure switch p Pressure tapping point Air amp liquid segregator Globe valv Heat exchanger E ii One way valve Fiter 21000 valve Electronic expansion valve Electronic expansion valve Capillary Ory filtering 134 Service Manual SM AMDS ii AMDS 280 300 320B Globe valve 5 E x a High i ign pressure sensor Pressure tapping point Pressure tapping point 5 Low pressure sensor um 8 8
124. sure ee Outdoor Unit Ambient Temp Indoor Unit SCne THS 18 38 398 12 19 Compressor Baton Col inj Coi 88 38 i Coil 4 77 77 080 945 060 060 oso 660 f e f v Total Piping Length Total Piping Length Length Refrigerant Volume 25 0 Volts Indoor Unit Press Low Pressure Outdoor Unit Indoor Unit 380 380 a Service Manual SM AMDS ii Model MDS B BR Ambient Indoor Temp Outdoor Quantity pol BIN In Operation Condition Refrigerant Volume TEE Total Current Unit Volts EXV Indoor Unit Opening S C EXVA High Pressure Pressure Low Pressure Unit S C Bypass 11 Outlet TH 11 Ssuction TH 12 L 9 31 MM Compressor Bottom Coil Indoor Coil Mid Tm 10 0 12 0 Unit Coil Out To Model MDS B BR Main Pipe Piping Branch Pipe Total Piping Length Total Piping Length Length Ambient Outdoor ay Low Pressure DischarggeTH DischarggeTH S C S CInle TH9 LSU NM C Outlet TH10 Unit S C Bypass Outlet TH11 Temp suction TH12 Coil In Ti Indoor TT Unit Coil Mid Tm Coil Out To Service Manual SM AMDS _ ii 101 D tdoor Total Current Unit Volts EXV Indoor Unit STE Op
125. t skip For example if there are only 4 outdoors in a system the outdoor address needs to be 0 1 2 and 3 d It is advisable that the outdoor address follow the sequence of the communication wiring For example for a 4 outdoors in the system the first outdoor after the gateway should have address 0 the next outdoor address should be 1 and the last outdoor of the communication wiring should be 3 56 Service Manual SM AMDS ii Set Dipswitch 3 S3 1234 Outdoor unit capacity For Dipswitch S3 the main function is to determine the AMDS B series outdoor capacity Besides this dipswitch dipswitch 52 3 is also interrelated The setting of the capacity is as follow 1 1HP 4 1 1 20HP 4 1 1 4 1 4 30HP _ 1 5 7 Power Up Outdoor After the outdoor unit setting has completed we may power up the outdoor unit to see if the wiring connection is correct If the commissioning software Smart Commander is available it is advisable to use it to run the commissioning Connect the outdoor unit to the commissioning software accordingly refer to
126. t too high overload protector OL1 on Fixed compressor 2 operating current too high overload protector OL2 on Fixed compressor 3 operating current too high overload protector OL3 on Outdoor motor broken cooling Outdoor circulating air short circuit cooling Outdoor heat exchanger too dirty cooling Outdoor ball valve not open Indoor circulating air short circuit heating Indoor heat exchanger too dirty heating Indoor unit filter blocked by dirt heating Indoor EXV not on properly heating Refrigerant over charged Outdoor PCB high pressure output port abnormal Pressure sensor broken Pressure switch broken Outdoor ball valve not open Outdoor heat exchanger efficiency too low when heating Outdoor motor run abnormally when heating Refrigerant leakage or insufficient Outdoor PCB low pressure output port abnormal Low pressure sensor broken Outdoor PCB chip read faultily at the very beginning when power on Outdoor PCB chip broken Service Manual SM AMDS ii indoor unit EXV not turn on properly refrigerant leakage or shortage outdoor ball valve not turns on Compressor overload protector shut and occurs 3 times too much current flow in the compressor compressor overload protector protecting value wrongly set ER56 Discharge temperature Outdoor motor broken cooling Outdoor circulation air short circuit cooling Outdoor heat exchanger too dirty cooling Outdoor EXV not on properly heating
127. the defrost duration The allowable range is from 5 minutes to 15 minutes Default value is 10 minutes Defrost Delay Time This option is for future provision Currently is not available Sub cool Circuit Parameter The next parameter is TscA1 TscA2 TscT1 TscT2 15213 which located inside a same box These 5 setting is use to change the sub cool circuit which is only available in the AMDS B series outdoor A 5 MDS 80 500 The main mechanism controlling the sub cool circuit is the EXV 4 TscA1 TscA2 is the reference temperature for TH9 which is the refrigerant temperature before sub cool circuit 1 TscT2 amp TscT3 is the Sub cool target temperature the system needs to achieve The actual sub cool temperature will be based on TH9 TH10 32 deg C 40 deg C TH9 deg C See TscA1 TscA2 Tscl1 4 Tscl2 TscT3 gt Target for Subcool temp 3 deg C 8 deg C 12 deg C As the coil leaving temperature increase the system will increase the sub cool temperature for better performance and long piping application Example of Sub Cool Circuit Control with default value Superheat degree This is the parameter for controlling outdoor superheat EXV 1 This option is only applicable for heatpump model and EXV 1 is only used during heating cycle The EXV 1 will open to achieve the target set here Default value wi
128. tlet TH11 18 4 22 0 Cn 1 77 5 I Co Compressor Bottom 18 8 31 0 Model MDS B BR Ambient ndoor DB Temp Outdoor Quantity 48 3 08 8 E Outdoor Total Current Unit Volts EXV _ Indoor Unit Opening S C EXVA High Pressure Pressure Low Pressure Outdoor Unit Coil Out To 106 Service Manual SM AMDS ii Model MDS B BR 180 pening S C EXVA 202 180 High Pressure Pressure Low Pressure Discharge TH1 Outdoor Unit Temp Model MDS B BR Ambient Temp Quantity Indoor Quantity In Operation Unit iniri E Condition 050 050 050 050 050 050 050 050 050 050 050 Main Pipe Branch Pipe Total Piping Length Refrigerant Volume Outdoor Total Current Unit Volts EXV _ Indoor Unit Opening S C EXV4 High Pressure m Low Pressure LE __ P Discharge TH Outdoor M42 Temp 20 380 400 Service Manual SM AMDS ii 107 Ambient Indoor Temp Outdoor Quantity Quantity In Operation EXV Indoor Unit Opening S C EXVA High Pressure Pressure Low Pressure Discharge TH1 S C Inlet TH9 Unit 5 ENT Outlet TH11 MANOS BER B BR Ambient ru DB EL Temp Outdoor WB 2175 In Operation Condition Mode Fs fos fa fae ain Pe Tot
129. top of LCD press A or V to select timer sequence number press the timer sequence number is selected Enter timer ON and timer OFF setting press A or V to select timer ON or timer OFF TIMER ON or TIMER OFF is twinkling Press TIMER timer ON or timer OFF is selected Enter timer setting TIMER SET and CLOCK SET will display on the left and bottom of LCD panel press A to set hour and press V to set minute press again to finish setting and enter next timer setting repeat above procedures to finish others timer setting Press SWING for 5s all week timer setting in EEPROM will be deleted Exit timer setting If there is no press any key within 5s or press any key except TIMER and ON OFF key it will exit the timer setting 13 Lock unlock LCD Panel Press HEATER and SLEEP key for 5s the symbol iuf will twinkles on LCD panel MC303 is locked Any key of MC303 is invalid until HEATER and SLEEP key is pressed for 5s again While LCD panel is locked MC303 still checks and displays each indoor s unit status Hemark Timer is set to all indoor units Individual indoor unit s timer is unavailable Service Manual SM AMDS ii 27 3 4 4 Handsets Wiring For Central Controller MC303 wiring work is needed between indoor units and the controller for communication purpose The communication wire used should comply with UL2547 or UL2791
130. tor window allows user to plot graph using the data already obtain when the Smart Commander is connected to the AMDS system 4 6 1 Circuit Monitor Circuit monitor interface is used to monitor all parameter of indoor and outdoor which connected to Smart Commander FunckiwwWE Circuit Mentor Seme Monllor No 0 5080 410 Nest Page WR t Circuit Monitor Window in Smart Commander If the AMDS units are connected in a network user can observe all parameter of outdoor unit through the outdoor set address in the PCB Once the outdoor is selected the relevant outdoor unit number will be highlighted with a darker color Control Panel for Outdoor Selection There are three major parts in the Circuit Monitor window i Outdoor Unit Monitoring ii Outdoor Refrigerant Diagram iii Indoor Unit Control and Monitoring The function and usage of these parts is shown in the following pages Other than that the Smart Commander Service Version software allows advance users to modify outdoor unit parameters This function will be shown in the next section 4 7 Software Additional Function Service Manual SM AMDS ii 37 i Outdoor Unit Monitoring Items that can be monitor on an outdoor unit are as follow Identity Single Edition 0 1 Made Cooling Cout Tsh out 0 0 Compl DIG 2 Compa FIX Comp4 FIX FAH1 STOP H5
131. ual SM AMDS ii 109 Ambient Indoor DB 21 15 27 19 um Temp Outdoor WB _ Quantity r ee A Quantity In Operation Condition 015 015 Main Pipe otal Piping Length ce cen ce en Refrigerant Volume Cina xa pudor 704 Current 13 1 Unit 380 PY Indoor Unit Opening S C EXV4 __ ___ High Pressure ow Pressure __ ___ 02 17 8 4 c a B BR uu 21 8 27 19 3225 Temp Condition oo Vend 4 Mod 01 018 020 015 018 020 015 020 018 020 8 5s ___ 60 Quantity In Operation Main Fiping Branch Pipe Total Piping Length Unit 380 30 ndoor Unit 150 100 180 100 250 130 250 130 150 130 250 130 D ans 80 too 1801100 280 1301280 15011304250 1130 Opening __ 0 S CLEAVE High Pressure bor Low Pressure 110 Service Manual SM AMDS ii _Model MDS B BR 080 Ambient Indoor DB 21 15 27 19 29 19 In Operation 008 Piping Branch Pipe 2 2 u EXV Indoor Unit Opening 5 4 High Pressure Pressure Low Pressure Outdoor Unit Suction T H12 Compressor Bottom Cail ner Ambient In
132. ual SM AMDS ii 4 6 2 Service Monitor Service monitor interface is used to plot graph by using the AMDS system parameter By viewing the graph it will provide observation on the system operation condition Total 5 parameters outdoor or indoors can be selected rare fonus Di Bn Service Monitor Window in Smart Commander There are 6 function buttons at the bottom of Service Monitor screen The function of the buttons is as follow e First page Proceed to the first page of the graph e Back page Proceed to the previous page of the graph Nextpage Proceed to next page of the graph e End page Proceed to the last page or the graph e Set Param Anew window will prompt out allowing user to determine which parameter to plot Major unit Set Param Xx Y2 Outdan ndan Outdoor Indoor Tick to select ID UnitNo 1 Unit No nit Unit 0 T Unit No 0 E parameter to be Name ri Data Ti v Display Name Data Item 1 v Display eases 80 Upper 130 Lower 30 UnitScale 10 Tesh Y4 Outdoor Indoor p Indoor Unit Outdoor 9 Indoor 7 indoor Unit Name Data ___ Display s Data Item x Display Max value of Y axis Unit Scale o0 Upper Lower Unit Scale Option C Real Time iem 5 Ind
133. utdoor Model MDS Red Line Heating Sensor location Green Line Cooling Dry Black Line Stop This allows the user to understand the refrigerant circuit within the outdoor unit The different colors on the refrigerant line indicate the type of mode the outdoor unit is operating It also shows the sensors location which helps if the user cannot remember the function of the sensor shows in the outdoor unit monitoring chart iii Indoor Unit Control and Monitoring When using the Smart Commander the user can activate the indoors via the software This allows troubleshooting to be carried out easily without the needs to go to the indoor unit to turn it on Besides that a list of information on the indoor model is also visible Indoor Data Type of indoor and model Tr Return air temperature To Coil outlet temperature Tm Coil middle temperature Ti Coil inlet temperature Ts Set temperature LAS e TX d au e 0 oot phot EXV Indoor EXV opening Indoor address Service Manual SM AMDS fii 39 do C T eau T i r E Down Next _ Take note that only 8 indoor units can be shown in the circuit monitor page There are three ways to scroll to other unit if it is not shown in the screen Click on the Up Down button the indoor unit will ascend or descend accordingly e Click
134. ve The memory is 256M or above The free hard disk is 4G or above Operating System Windows XP Vista 7 The serial port or USB port is available The monitor is larger than 15 inch and 17 inch is recommended 4 3 Installation of Smart Commander Step 1 To set up the software insert the CD into CD ROM and run it Please note that do not Prepare the CD plug in the USB Dongle Key to the computer yet LJ Kev driver Address 5 D Smart Commander 3 1 1 File and Folder Tasks 2 Rename this file Move this file Service Manual SM AMDS ii 29 2 To set up the USB Dongle Key driver the user is required to initiate the setup in Install USB Dongle the SPI730 folder which is located inside the Key driver folder Key Driver After initiated the setup file just follow through the instruction on the prompt up screen to install the driver Once the driver installation is completed the following screen will appear Click finish to complete the installation Sentinel Protection Installer 7 3 0 InstallShield Wizard InstallShield Wizard Completed The InstallShield Wizard has successfully installed Sentinel Protection Installer 7 3 0 Click Finish to exit the wizard Protection Installer Step 3 Initiating the Smart Commander installation file and follow the instruction on the prompt Install Smart up screen Once the software insta
135. ve unit EXV opening degree abnormal when heating Slave unit low pressure sensor abnormal Refrigerant over charged Slave unit ball valve not open Slave unit heat exchanger efficiency too low when heating Slave unit motor run abnormally when heating Refrigerant leaked or insufficient charged Slave unit PCB low pressure output port abnormal Slave unit low pressure sensor broken Slave unit low pressure sensor connecting wire broken Slave unit PCB LS port broken 6 4 Outdoor Error Code for MDOM Error 68 Communication failure between outdoor and all indoor X indoor no Particular indoor no communication Discharge temperature sensor malfunction Outdoor ambient temperature sensor malfunction Suction temperature sensor malfunction Compressor base temperature sensor malfunction Coil inlet temperature sensor malfunction Coil midlet temperature sensor malfunction Coil outlet temperature sensor malfunction Compressor discharge temperature too high gt 130 Indoor and outdoor communication wire broken Indoor and outdoor communication wire loose Indoor and outdoor communication wire A and B reversed Communication wire too long should less than 1000m Outdoor PCB not power on Indoor and outdoor jump wire not correct still on update status Last indoor unit terminal resistance of communication wire not short circuit Indoor and outdoor PCB program not compatible Indoor
136. vice Manual SM AMDS ii While upmost is taken in ensuring that all details in the publication are correct at time of going to press we are constantly striving for improvement and therefore reserve the rights to alter model specifications and equipment without prior notice Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market
137. with version 2 7 and above 2 Junction Box Part Number R50044119815 3 Contactor for Key Card Access Kindly take note that indoor units produced from March 2012 onwards should comes with PCB version 2 7 Kindly refer to the table below which indicates the starting batch number of indoor unit production that comes with PCB version 2 7 Starting Batch Mode A 5 WMD G A 5 CKD C A 5 CKD A For the Junction Box it can be purchased separately from spare part department Alternatively you may source for a NC Relay locally in order to replace the usage of Junction Box For the key card access contactor it is to be sourced locally according to specification required The diagram below shows the outline and dimension of the Junction Box Top View Side View Service Manual SM AMDS 1 155 The wiring diagram for this feature is as shown below Indoor PCB INDOOR ORT zu 2 OMNI AT OM 1 LM i CONTROLLER 2 Factory Installation Nico Ro 2 On Site Installation RE CoL KEYCARD INTERCONNECTION WIRE MCB 240V 50Hz 1Ph 240V 50HzZ 1Ph Contactor Remark 1 oa 156 When the T_IDOUT2 connector is OPEN the indoor unit can be operated by handset When the T IDOUT2 connector is CLOSED the indoor unit will stop operates and goes into standby mode The K
138. xcept A 5 WMD20 25G indoor unit The figure above shows the locations for all dipswitches buttons electrical connections and sensor connections Service Manual SM AMDS ii 17 3 3 AMDS System Wiring The wiring for AMDS is very critical as AMDS is a system by itself Generally the wiring connection can be divided into wiring connection between AMDS outdoor to indoor units wiring connection between AMDS outdoor units and wiring connection between AMDS master and slave unit The wire used for all will be the same Wire Structure conducting wiring copper intersection surface is more than 0 5mm 20AWG Insulation material Screen layer efficiency shall be higher than 95 o uim outside layer protector Note For wiring cable refer to UL 2547 UL2781 standard A screen cable is recommended because the screen cable will help to filter the electrical noise along the communication wiring and thus help to maintain stability on the communication For the AMDS system the communication protocol is using RS485 The wire length between first outdoor to last outdoor must not exceed 1000m and the wire length between outdoor to last indoor also must not exceed 1000m 3 3 1 Wiring Connection Between AMDS Outdoor to Indoor Units As the AMDS system is a single outdoor multiple indoors system it is required to have communication wiring between the outdoor and all indoors The wiring is required to
139. y unit is assigned with an address for communication and signal transmission purpose Both indoor and outdoor unit address need to be set manually through the dipswitch located on the PCB Other than address other setting such as unit model and capacity are also set through the dipswitch These settings can be done during the installation process or before commissioning It is advisable to check the settings before commissioning starts The dipswitch location is different for indoor PCB MC200 C and MC201 C Please refer to page 16 and 17 Even though there are two types of indoor PCB the dipswitch function is the same For AMDS indoor there are 4 types of setting need to be determined a Indoor Type b Indoor Capacity c Indoor Address d Indoor Function Dipswitch 1 SW1 61 ON 1 OFF 0 123456 Auxiliary Heater n Y c Reserved 1 amp 2 Water Pump Dipswitch 1 SW1 is to determine the special function of the indoor unit There are 2 main special functions that can be specified in AMDS indoor unit The first function is the heater function This heater option is only applicable for ducted model using wired controller and it will function during heating cycle or fan mode Locating the dipswitch 51 1 and 1 2 to ON position will give the PCB ability to control the heater relay The PCB is allowed to connect to 2 heaters If only 1 heater is available just locate 51 1 to ON position If 2 heaters are used both 51 1 a

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