Home

Air cooled screw chiller Technical service manual

image

Contents

1.
2. BA 3 Remote start Remote stop Water pump 2 Alarm water flow switch Multiple communication 1 Alarm mode indication Diagram for External Wiring of LSBLGW880 C LSBLGW1000 C LSBLGW1200 C LSBLGW1420 C Unit Breaking isolation switches should be added between the power cord of users and the unit The
3. ZHOS d eT gt wig gt uj6ue7 WWGL 0 9215 uyi lt Ieutuu 190002 owes SIOMOTG 118 19010 T Ce LINO T 222 1879 Z A00Y 086 2409 dt o mE WT ee SHON Ae N E iam IN p P 5 pi Ps N 3 N a N pe Je 26 9 96 9 f M AUN EGIT 9 6 6 1 GAT ont 34 SMI 841 80T dd LAT 9MT 9AT ont SMT ad VAT PAL 20 SEE zss pe 50 av ETE D LEE ud i DETTO IN m owes JIV TDI ELETTI SE VI 0 tuuc 0 Ire 19010 XL 4 je e 1 e 1 V9 du Ne Av N Erde pea VN VI 408 OS o C e XC c s NY UM OON poe WOT 40 1 5 WSS JOLE dd 5 eT e e e e ae
4. OVAOOZ 10 1ndjno spuels Zz X L X pue uoroeuuoo Spuels Z X 6 X euBls aatssed jo yndul spuejs g X L X Iguluu Z ON pue ON Jo 99 SOINIXI payesedas esind Ax3 9 X 86 X JeuBis EUN ERE e fouepunpeugp Xl GPX YSXL SEXL 900 lt BIS _ 2 SOINIXI UJIM 25 PE vEXI EXLH DWOZZ s 5 P 0 5 o s nd AX3 022 Aq si X aes N 421 og xt Lee Xi 211 e e e e e e e e e e 2 J 4 M qu 91 0 Luat ouat buatku eyar mar 5 AI we SAAT OWT PWT FAM CAAT LAAT Lem gs ME T
5. J 2400 o O n y Z 27 H F B 3 0 6 olo 2 X I1 213141516 7 8 9 10 11214414618 5 B PE t lt 5 A 0 gt s L3 C S o 90 lt s 5 vy TE o 9 L2 8 Diagram for External Wiring of LSBLGW380 C LSBLGW500 C LSBLGW600 C LSBLGW720 C Unit 26 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01
6. 2 Product Line Up Model Power Supply Cooling Capacity KW Quantity of Compressor Quantity of Fan meme _ e LSBLGW1000 C 380V 3Ph 50Hz LSBLGW1200 C 380V 3Ph 50Hz LSBLGW1420 C 380V 3Ph 50Hz Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 3 External Appearance LSBLGW500 C module LSBLGW600 C LSBLGW720 C module SBLGWS80 C module LSBLGW1420 C module Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 gt Features Environmental care m R134a refrigerant Refrigerant of the HFC group with zero ozone depletion potential It is environmentally safe and does not have a phase out date Economical Operation Cost m Extremely high full load and partial load energy efficiency New twin rotor screw compressor equipped with a high efficiency motor and a variable capacity valve that can adjust the capacity of 25 50 75 and 100 in 4 stages Stepless control as an option and permits exact matching of the cooling capacity to the actual load m Electronic expansion device permits the operation at a lower condensing pressure an
7. 461 9 91 8 Y a 36 6 I LG 82 492 1 ae i IS WOO OS NOD OIA ON SP er E A0 BED LH9ININV NL Z V 1 4 WO ZI ZA TI TA WOO 01 OA gt 2 g E al Hai V Z 0L En 04 V V AK HE HH B 2 PT 4996 52 gt POE 12 12 ON 89 2 d 09 1 796 141 5 Idl Sw 29 AISSO 9870008700 u0TJOTGHT 3089921008 9N x wes 8 Ll LAa9TIAGASNL SV Z 9 2282 BRE WOO NOO SIL HII ETI GII TIL OILI 61 SI WO9 WO9 ZI 9I SI PI SI 61 111 OI 95214 96 106 Z Sc Z Do C C Z Z M MT V 5 18 019 60 09 XGLV 89 g 8 72 69 XI gy 2 8477 64574115 c 2 A TES X925 E 59 0 09 4 6 08 0 5 19 91 8 1 C C C C C 4 141 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual a
8. 1090100 TEENS i mm m w 2 10 m m He 1 010 190287907 V C V V V 2 529027 26 Wu WH TIS 4 MX LINT INI TIT q6 6 um 697 5 9 1 1 1 6 6 c E ET 5 0 1 6 Z 2116 LIC CIWS TILAT 5 2 TAO m NGC 285 yc 1 29 ie 1972 DL 191 0000 req IZIN LENZ Jct ggs i n eg i 4 5 IViG qN 1 04 213 697 971 1972 1971 4 PPS IX PZ XI Z N 4 vdSZ 4 41 aN epa 91 9 960 2 900 x 8 Tas 138 5 2013 01 PLC series Air cooled screw chiller technical manual
9. NU SS To fpi am popu TOMAS 92009900 jer am ona A pa m 5 Lis VHo veo MN EX wen VHT 76272 du UIS KILLING SINS AN TINAZ X SINT TIT q6 6 7 Mi mm 6972 69 1 96 8 y na EL E 1 4 T fF 1 6 _ STINMZNAGINMZ STIN ETT ILJI ee ae 4 4 5 DIAO ey Agza 285 yc 1 Ve I 29 ie 1972 DL 191 T MUMO neu Y jen JUDI pev INH qg s i m toc 1 5 IViG UM 972 9 1 Hd 1972 F 7 T L 9485 d oN ey a 921 6 LG XG oe XT 4 185 146 5 2013 01 PLC series OVA00Z JO 1ndjno 10 spuejs Zz X X pue JO uonoeuuoo JO spuels Z X 6 X OO euBls Jo yndul 10 g x LX CCX X leuw 2 v 147 T Jeuje0 1nd Z ON pue ON Jo 99
10. OU 1010 AY pune 19U0J8U01 1011105 14 11 11 0100 5 o gt re a B3 3 oA6 XI 02 1 o JL 1 91 lt pe Y 2 28 08 8 9 CHA W N XW X 9 IQ TQ PS S CS IS JAWA OND Suus sss ndu I011I31Q 30 UV 780 790 XI 19 gg s ELE LS m4 Sv NWA oed i s 101190000 1144 lt J noq IN 10 P C 5 I T 09 9 VG 06 88 98 178 6S x HE we 41 64 1022 C V9 N 9I WP v9 ZHOS 41 ZHOSG dI Pld 161 240 TI H CNA ve img 70 Air cooled screw chiller technical manual 5 2013 01 PLC series Air cooled screw chiller technical manual 30 7 45 001590 T Pi BM
11. E 3 2 4 E Z _ L _ LsBLGW1000 C AAA ae m LL LT LL TT T T T T TI L L L T T L TL TT lama ani usa ga Z AL L T L T T T gt pes t T L L O Bima __ LSBLGW1420 C l m P T P T TT T T T I TT T T pH gt LLL js a p i L LL IT TL TIT LT TT L LL TL L L TL TL TL E En Ed 120 150 200 240 280 Evaporator Water Flow 1 14 Air c
12. uorjrsod 3uou ejsur ITY DE P 10 5 s Ny p W fone N N uonoejoJd eJnjeJeduue MOTA 2 91J329 5 b 5 JA P9 q C N J 18 y JW LO ao 6151 21451 01 8 9 n S N W N pa Se W ae ed N mE EF me Zug 0 9ZIS SSUTITM 19213002 LIV 2 gt lt gt gt ug u38ue 8841214 gt Uug T 715 SSUIIIM C s i 10 109 104 410 106 lt 1eddoo IW ZS IS N 1T 2 E 066 A00F 08 V XLE de ACA Es owes SIOMO Q ITB 10110 ES VIGI sume UUIG Exe u u V8 G A00v 08t ZHOS d u ient E j 3 E EO e I i 2 2 M a 5 a gt AST Pu b IN N J E N ral ug gt ul5u 1 Q IN I ae AP T 26 96 0 925 jJ pese d gd yI df M lt 014014011 6n Jd 9M 9 9N Ad SM SALSAN Hd vn Hd Hd ZA 7
13. BU uj pejejedegs 08XL LLXV sInd AX3 9 X 86 X JeuBis AE fouepunpewor XL Gp XL vOXL S XL BN T i uy Buiwojoj pejejedes 3 dd ei as S a AQUEPUNPOYPEXL EEXL v XL kXL 2 00 5 5 M 0 n oe 1 0 s nd AX3 5 Bojeue oqrz 0V0Z Z au s VS m ami ck iA ar m e O e 41 9 L6Z XI 1 ae Ul e e e e e e e e e e 1 KI LXI 09 1 XI 2 XI ayo cuai pya gua Nat SIAT LNT OWT ELT EET EVY deus T oe 19 eT Lax o0T X o 6 X 661 ze bini BT TT LITT pa L Lue i d 96 96 6 26 510 0 o0 8 L 102 19145 0d Id VIO 10 110 60 90 N 1 TIS JY q ae FL V Y 4 IV ON CI 0CI 81 911 S
14. ELECTRONIC EXPANSION VALVE N E W PRESSIRE X m LOW PRESSURE SWITCH ANGLE va yr Maxworking pressure 17 bor udi EVAPORATOR Designed pressure 18 N P P ERE p E A VALVE N TEMPERATURE SENSOR N TEMPERATURE SENSUR A b ANTIFREEZING SWITCH WATER DUTLET WATER INLET PRESSURE RELIEF VALVE Project pressure 2467 bar N ANGLE VALVE ALIE E TEMPERATURE SENSOR LOW PRESSURE SWITCH PRESSURE SENSOR N DUAL PRESSURE SWITCH Project pressure 20 21 bor N 2 ELECTRONIC NA EXPANSION VALVE PRESSURE SENSOR HIGH PRESSURE GAUGE LOW PRESSURE GAUGE T PN SOLENOID VALVE K fm o nd D _ E ed 227 _ NE LL LU ae THERMAL EXPANSION VALVE BALL VALVE CONDENSER S Moxworking pressure 22 bor N Designed press
15. 5 2013 01 PLC series 144 1 c ci 10sseJduuo2 YMS uonoeyoJd efueuosiq 5 6188 4 11182 T gg 0016 ZIS SBUTATH o3 uo TV gt T gt ul8u9 7 58 eINMG WIG ZIS 880121 gt 22 B 109 406 40v 40 1 b D N CN CN IN S EN v 1 N GW 651 151 NIT P VOSE A001 08 V XLL Re POE de pm oues JIV SIOMOTQ 118 19010 AN S t VI6I UI T 4 IIUIG 6 C n mu mu __ V8 S A00v 08t 2809 d ZIZ gt ATN E 5 MT TS a 7 m k e Z P E L k 1 ANN or ala Hd 840 8 0 815 Hd 4G AC LAZ dd 940 9Ac 9c Ad SMS GAT Gc dd v c Ad EMG 640 ENS Hd CMG 246
16. er Entering Woter T Leaving Water Terp d V S A V 13 5 1 e e e e e e e lt 72 L4 xx dc we g 5 i c L uM _ EX 2 gt wy Et WI De NT 25 ET Eme enm mom Cul E EA zu a 1 6 8 7 t 157 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual N LG SB 2115 19497 10 x 115 61 121146 900 H 1 Ne 81 2417 101509014 821232911 9g 21146 10 T vs LI 941 vorsuedxg 18011100 4 JO 1901 098 91219191 91 1940 2114 ve 91146 97991 11 cd ZOS ST Q NPOW 949 uorsuedxg Te911109 q 8v 1216 MOJA 1918 2 TOS VI 099129 Qono TNH Ze 19199 105591000 zz CHA THA er 9 Jo opnpoy poxij 5919015 soyeuy m IS 19010 15081 101105 In el 2410 e npoy 91178790091 0 0015 121921914 85 H Vid JO
17. L ILAS 19491 TIS 61 27746 9004 4 0 T s 8T uorsuedxg 7891179917 96 01140 J i VS LI 9419 101500072 801272919 JO 19404 01 9 9 9181091191 91 1940 YILTA GV ve 21146 92991g T1UY cos GT o npojp 2419 001509074 21132911 8V 0114 4014 191 1 195 2 199125 0101 Ze 19789 1088910100 THA er y JO aapoy se 3urg 30 euy m 19010 1508 00118108 11 e yM JO 9100 91119190 9 uy 0 016 400981919 gs II Vd Jo 11001 p9pU91Xx7 s 67 10129 100 084 SN 01 314 JO 9 npoj 110110 9009154 82 9191 X LLY 6 J0 popuorxg a z 1010 E 8 014 JO 9110 14 IV 92 ARTON gu TMd L 19000917911 91155214 qu dL 141 GZ 10128700 108591010 9 91115 91188974 245 245 145 yc 3 npoj 101 29101 19104 6 9417 1002106 GAA ez ostly end end TAA y 108196 911819009 E 22 ITY 5 PAO 640 ZAO 139 1939918 710911 o 19091 110911 95 pop noy DI 2 2114 11011221014 COT cs 02 190108081 10911 HE ZYL 1 NOILLdTHOSSQ WALI TONAS WALI NOT Ld 1YOSAC WALI TONAS WALI 142 MCAC CTSM 201 3 01 PL
18. e e e OR OX Q gt i G8 08 ZBL 2 _ 9L 0871 08 18 1 9L I a XW XL ND IC TQ eS zs IS 4 OND ps es 25 IS QNO CHE THA Pis 114081 3IST 30 uy Pr 11401 1IST 30 uy IAM 8 6 801 jes IS AedO U0119UU02 Ajddng 107190002 ddng xN AX E 19804 LVA 09 0670 88 dL XGBL Xd e S _ de 9 7 Vy 060 98 15 V9 1060 N y V9 2608 dl 7H0S dl T gpg PI 40 161 z0 1140 HI 129 5 2013 01 PLC series Air cooled screw chiller technical manual t m c A di fap au 1010010 x0 OAG 92088970 fray om 1019800 120129100 Tolo Y pi 1 E
19. AZ1 S del S Y Y 16 6 ru 10 6 Met o 81T VE IS W09 os WO OIA ON 0 V T I EA GL H IA TIN LZ OLY IL DAT 285 iS E e E IS AK AA 127 Eo IA 4 a j U 417 dL a gt E gt LUSIT IGerraqcmr SV E WOO WOO STI VII oll 611 011 61 81 WOO WOO ZI SE ue VI el 61 Be 710672 0672 XO 0118422 Xz 86 6 06 6 smi XG lt UG 6666 09 7 6 11492 aay 54622160012 M by Xdgv Xc 0016 P lischarge Press Discharge Temp IN IN 69 US T 86 Lo 99 XI LRM Ambient Temp 8970 2 RID 69 X 99 Z A 89 XZ 19 X IN6 IN2 IN INI 1 RI5 IM INO
20. 2 em a CN 00 E 2 IO IO LO eo CO c CY lt H LO eo LOGO LOO LOG LO Oo On Oo eo Oo Oo gt x p lt pd x gt lt gt x to gt lt e T re T re re ro re re T re re 8 d m CN 52 Leaving Water em ep Standby Ambient Temp 4 19B pe 2 ATOR e LSBLGW500 C TOTAL SHEETS G 111 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual s L 300 C LSBLGW 07186 19497 119 mU is 21146 1 2 TES 81 12116 foy VS LI UOISUP X 0211129317 X3 AvTOY 91 947 uorsuedxg 921112911 JO 19404 OTY ve 101146 97991 T 0y Res cos 81 19401 101146 GV 21146 4011 1977 2 195 V O NPOW 941 101519011 eorijoo g 8V amp 191091 10559111007 CHa THA er 199120 1210 19110 UOT VTOST 11 71 ld JO 911004 918015 20190 0 dois 120991911 gs I 14 JO 9100 osnyesodwoy i 67 10329700 SIN 0
21. 4 12 19 X 15 X 18 Mele 16 O 1X 19 T 1X 20 O 1X 18 99 1 15 IX 16 1X 14 IX 13 1X 11 1X 12 21 e 15 10 YV5 YV6 YV8 4 2 KAS 00 01 02 93 04 05 06 07 Q8 09 010 011 012013 014 015 COMICOMI 1X 9 TM2DRATORT 25 TMZDOCKN 4 12F Nb q 4 12D L SBLGW500 C E 110 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 13 51 3 COM COM 6 2 SE V2 COM 4 Vl Il NC VIO ATTMZAMMOHT Ko p Sax eH COM Suction Pressure Discharge Pressure ES SE 1 70 a t 1X 71 lt gt ae n 1 67 lX 68 1 69 ia QMII
22. aD LT mr C 1 22 TH 21 91 MCAC CTSM 2013 01 PLC series Air cooled screw chiller technical manual LSBLGW600 C LSBLGW720 C AS 0 173319 N N N N Y SN3S 380194344315 JA WA NI N 2x a N N N V 837 IAUNDOJ
23. AER DR a gt lt lt pre m XATURE DULES M CAUCE SENS UNIT N FAN NDITI gt 5 AIR DIFFEREN R DIFFEREN IS TURE Sd y PER EN GLE AN 2 e 01094 k 4 LESS Or ned oc R V
24. To VI O aug 0 2 oues 91 N N F PRI uw siomo q ITB 19170 VO TT VI 800 Cd SR Tx g k Son 05 SO a SONA Ver doe TT i 71 m a Pr dol mud ave e e e e e T g l ex eX GX GX IX 2 y Jeddoo 02 A007 08 2808 4 Air cooled screw chiller technical manual MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual 1 1038 AY QUAS 20505 atu Up 1011010 ul i it dag e e 3 oLG Xl 99021 N N OIN W LX 28 08 8 9 CHA ma XW XL PS S CS 15 QN eS 114041 181181 40 0 180 1 180 1 99 19 69 ike e s SV JTW edd a a P r gt ON Fe 72119112 101790102 114415 mog IN ro
25. RJ45 crystal head RJ45 internet cable RJ45 crystal head 20 20 0 0 0 00000 se SISSE 5 Wire number of RJ45 crystal head 2 Inspect whether the fan overload protection value is set correctly The current value for normal operation fan is 3 5 4A After a fan overload trouble press the blue button in the heat relay to reset 53 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 D ie pyy Pi Protection setting of fan heat relay overload value the number of which corresponds to the fan overload protection value 3 Inspect whether the compressor overload protection value which shall not exceed the maximum compressor permissible current value indicated in the nameplate on the compressor is set correctly The compressor overload protection value generally equals to the set value of heat relay similar to fan heat relay multiplied by variable ratio of current inductor which is
26. 2X 18 OX 15 OX 14 OX 11 OX 10 A Ss p nE z c E e g c 2 gt p Cc 2 EC j lt cs Ln 5 T CU CT E CX Cx EE lt w ej 1 Air cooled screw chiller technical manual MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual 6 SL 99 6 82 1 91 9 91 9 16 6 9L 6 IS NO TIA ERAG S 8 I 05 OIA ON 5 LH9WNV GWL AV I 1 CA H IA OL D S t 2 b aq i ya LA9TIAAZNL Sv WOO WOO SII SII 611 IT 011 61 81 WOO WOO LI 9I SI VI el 61 Be e T9 X2 XZ 96 21052 16 0 2 9
27. fy OVAOOC JO Indjno y 10 spuels Z2 X LX pue JO 10 Spuejs Z X 6 X 5 ndul 10 9 CCX X euw Z ON pue ON JO eu gt 1004 C SInd AX3 2 9 X SG X Jeubis _ KouepunpeM9r X Gp X 9 1 9 0072 a x gt E z E Ap uy Buiwojjo UM gt ea e 1 KouepunpeMre XL e XL vocz E i AE a amp Japio esind Ax 3 1 Boyeue oqrz ovozz eu Aq si peura X 4 ionem ER E 1 eel I YS 5 j 711 Zr gt gt d gt 81 9 NE ma 1 qn 921 7 OUT Kin OWT SNNIPRNIERXI GAAT IAAI IVT EVN EN T f TE XITS XI TEXT TEXT Ier x d ieee 5 2 617 2 lls xg 86 96 6 26 cr 0 mo 010 8 D wo ml s NOD 19145 00 10 TO 10 110 60 ENOI 90 102 N 1 715 r 06 9 18 16 ON KAI 011 8TI 91 CT III 61 LI I 1 0
28. 8 LSBLGW1420 C unit mm 50 11700 _ 200 ____ 2000 1800 1800 1800 1800 1800 E F G Control box o l 09 A Unit bottom QJ 7 Foundation Foundation bolt M14 I J KK L N Lf Weight to be supported by spring isolator kg B C D E 722 722 19 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 2 Installation Foundation 1 Theinstallation foundation shall be designed by professionals according to the site conditions 2 Theinstallation foundation of the unit must be of a cement or steel structure and shall bear the operating weight of the machine and this face must be horizontal 3 Please refer to the Diagram for Installation Foundation of Unit place the steel plate and anti vibration bush on the foundation accurately and execute secondary grouting after installing the unit and foundation bolts together The foundation bolts are generally 60 mm higher than the installation surface Bolt Unit Base Channel Steel Installation Drain Groove Surface Washer Cement Mortar Link Kit Second
29. 4 B jus ae LCD T SAC SAZ dd PMZ 900 ene 2 2 Ad 242 zAZ ad Tmz 110 641 0 uaz Chu G C Cuz Lb cC id 25 25 eG 5 WAZ 5 SN V gz N 9 NN are 7 7 5 51990104 II 19410 NA MER V9 11 _ Yor 405 VI dor C C E xl Dep om N Pise us xN y Ade C e e E e 7 a c T i VSLE JOT c dd age ae I NE T e e d 8 1 e e e 2 GIG Gl a c T xZ IXc 110 Jeddoo 02 007 086 2109 Hd N d Air cooled screw chiller technical manual 5 2013 01 137 PLC series Air cooled screw chiller technical m
30. IU MJ DM dog 100282901 n KEX auo l pue 55 1132 X TIAI TNT UH I 46 6 7 mm 6972 Gsm 691 8 1 ER EE ER EL 6 1 eT 1 1 6 u Ave S LLN LINT ZINT LXI cin AME s e 4 i ions lt 086 2572 1 is eZ 197 1971 1 deyz JZ Zenor SUI IWH uj e c Ten NU 56 0 aN 692 6971 2 ad e n foul 1972 1971 o Fa ZI XZ s XI 722 4 9455 4 5 Ig gz XZ 8 WI 185 130 5 2013 01 PLC series Air cooled screw chiller technical manual
31. SSS dale M gt F IVA J DNY S IAN LYN SNAS daNSS dad 4909 D 44055444 1 2 02 eunsseud 12a Oud NO NOILICNUS aly 1N38 34310 W NV 4 S g30NVH9X3 13H N 04 Cd 1940554 Ans Sa 34d d 440 Mx Ca Z N 92 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 LSBLGW880 C LSBLGW1000 C CONDENSER ncn 8 FILTER THE NUMBER DF FIN HEAT EXCHANGER S FAN MODULES p DRIER IS DIFFERENT FOR DIFFERENT AIR CONDITION UNIT BALL VALVE PRESSURE RELIEF VALVE HIGH PRESSURE GAUGE TEMPERATURE SENSOR PRESSURE GAUGE Project pressure 24 67 bor BALL vaLvE TEMPERATURE SENSOR gt lt SOLENOID VALVE TEMPERATURE SENSOR SOLENOID VALVE PRESSURE SENSOR
32. meu 3340 39189 1 4 UA Jic UA Tic UA RC A 38 7 38 e T qup Ao DRE deag n rd J 5 yg an IC IDINZ s YS TIT L DINI Is lt pe X 922 59 1 Q 25 25 Q 24 Ow 0870 0870872 9 76 0871 0871 8 71 09 71 OND pS CS IS ON Q9 IG TI P es CS IS Spee Pos 11441 1181 S0 euy sos 11441 2 131q 30 2uy Mae AH 8V6 8VI coe 61 9 IS 294900 001390002 41801 001190002 ddng ll AXH ul AXA t I T 09 t I gt 09 0672 88 B8 Z 781 _ 0671 88 1 9871 81 _ e5 D du N AS 1 5 8 46 082 0022 6 ye px LXIBL XTAL XI am ESL 2 BB 7 qt ROME m N2 V9 N V i V9 7809 dl 31 2909 41 gt lt 0 7 X Tu IST 204 IFI v40 mo 0 Tol THI IL PI 145 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual
33. 10 Volve Only Heat Punp 110 1X 9 YV5 YV6 YV9 4 2 KAS 3 25 TMZDOCKN A2 NM 4 12D A 12 pw 19 4 12 D LSBLGW600 C 117 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 13 51 3 COM COM 16 Lu 92 6 V2 COM 4 i Vie Il NC VIO ATTMZAMMOHT 73 t SRPA eH COM Suction Pressure Discharge Pressure CES O E 9 54 1 70 o A Nr 1X 71 lt gt ae n 5 1 67 11200 1X 69 QMII G 2 a 2 Re BE m CY Qo D LO eo t oo N st LO eo LO 0 100 100 LO LOO Oo Wo Wo gt x pd p lt gt gt lt gt x gt gt lt T T T T T T T T T T T 8 d 2 Leaving Water em Entering Water ep Standby Amolent
34. Jeddoo 0 06 4 Jaddoo uu9 09 007 086 2809 6 135 5 2013 01 PLC series 136 8 4 1oss iduuoo YMS eBJeuosiq me Lise EISE a 88 2106 0 9715 SBUTATM 023000 10410 IV 7 SiS gt gt 8 58 T 9215 SSUTITM IR 109 308 40v 40 uu 1930N l e eX amp a ZS IS N 7 amp VISE A00F 086 V XLL gt U ZT TI mu mu Ve G 076 A00y 086 2808 dt ZIZ gt AD ATN s S N E WW
35. N m Z N E et bs fo d ue N zt ae b M E il 4 pp pP 8 91 J ae 97 pie Pes NW Z N Penes W Fe A d N PX N s 4 Q i _ Cp 5 TON 25115 N 7 r VISE 1007 0865 VII MP 4 2109 dt eT ozi tI gt ug gt 926 ol 810014 118 19910 ch VIG 190009 _ _ V8 S 7 007 086 7HOS db c TIT p pP i E JA iue Ae Y Wes uie X Mc Jc N SWS AD x N N 06 9 96 9 41 5 p di Z rper 4 2717 1 1 A A dd 841 8AT 801 dd LAT LAT LAT dd 941 9AT ONT dd SAT SAI SAT Hd VAT FAT dd 6MI leat dd ran GAT 601 dd TAT TAT B pun E r dj c Cer Cha E G B E c oS e 701 2 AE alee SE EE zc eius eU TM 2 7 om uen ui m a M qui T 1 d TMN STIZTTI VI 0 Amo 0 1 1 M oues o1 5 ITB 19410 CAN N N N N 3 N C X Uc Dx J unu TE EE 80971 2 8061 oe ar yor Be 1 e e e e e 22 e Wale m 1 7T 51 e e e 2 _ dr CII gt e d 22 PE ji XI CXI IXI IXI _ HIH WX 4
36. x V xi 2 XIL 82 69 yis TIS ee u oe CW STL 2 NP d DIAO Ag HSPs 41 12 29 A ZIN ETWY IWH gg I 9 l feng 19 2494 Z a arr 9491 2 9 XI 9 0 7 5 1 9174 1 2 101 5 2013 01 PLC series 102 101100 etj 10 spuejs 20 lt pue suoneorunuluoo ninuu Jo uomoeuuoo 10 Spuels Z X 6 X Jeufis eAissed jo spuejs 9 X X CCX VX Z ON pue ON JO SjeuiuJe au E SeJn XIJ UJ euluuJ9 u03 uy 08 XL LLXV sInd AX3 _ 9 X 1 66 eubis 2 vYe XL S XL 2072 jeuro es 3 es AQUEPUNPOYPE XL EEXL VOZ P lt JepJo s nd A
37. OVA00 10 Indyno 10 spuejs zz X X pue suoneoiunuuJoo niuJ uonoeuuoo 10 Spuels Z X 6 X leuis anissed jo 10 spuejs g X X CC X VX Ind z ON pue ON JO 5 941 UJ uy 08 Xb LL X esind 123 F 9 XL 89 X pm EE NM fouepunpeMgp Xl SpXL vS9XI SEXL 2072 b Es uw tS 2 cia Sl fouepunpedpeXL E XL 2 0 5 C 2 Japso s nd AX3 1 Bojeue oqrZ 0V0ZZ au Aq si Us 5 C j as E Ez Ez P Ka i ES E 22 5 e e e e 461 75 22 a 06 1 6Z XI 211 e e e e e e e e e e e 4 91 6 nbiHexrgnrures14esd4ryu4d4eu4 ZM AINA XI 9 XT LX x 1X X IX SA LWA ONA PWA ENY GA PAA SAA GAA vr ers b i b x b di T ze Noe dee a 86 96 66 eze 1166 ete er JTT 6 L 19 s E f 0
38. 127 5 2013 01 PLC series Uc 0 9215 58 013102 19930 TIV UuG g38uo sSULIIA WUG ezig SBULATA 109 409 10 486 lt 1oddoo 9 0N OWES SIOMO Q II 10410 ETZ GGE Z UN 108 YOUMS eunjejeduie 1008 0986 2806 d Un cJ T Un N 12D 4 12C 2X 44 5 944 2X 21 LI2 2x22 lt Nb 4 128 880 SBLI Air cooled screw chiller technical manual N VOV V SVI6I AUUIOG IG6 __ V8 s Mic 1007 086 7HOS de ZIN Np p IN z MP ae S N N W N N E ff A Quee TU C d AZ 100 dd enz paz vaz vnz
39. 205 1245 71145 17 ZOS TOS 8 z9 XT AIX WEXIIEX OPESXILe XU 9 ex c e 4 e c r ky e e e e e e 2 ady y 155 5 2013 01 PLC series Air cooled screw chiller technical manual Valve Fon Group Recovery c Comp Start Stop Aux Heater pun eating Lonp Heat ca A EE p m gt Lj gt x EE cs lt E gt moe ES NI as 2 EX a F LE ESI 5 c rer 2 t epp 11 9 ON TAAG e X 22 19 TVG 9VM TAAG OX 070 6 21 ch X 20 IFI 18 1 19 X gt lt X GAAT BAT X 17 X 16 1X 20 6 1125 119 IX 16 Mee T IS I6 1X 13 1 12 TAOO TAOO 910 71
40. p 7 A 4 YMS uonoejoJd eunjeJeduie MOTA x N PES N N T W Vous fos FU e CLSTL LTIST 8 9 275 N NW N NW sS BH h ERA WUG 0 715 SBUTITM 1023000 19430 IV 1 ee za u38ue 5 rk be Quc ZIS SSULIIA ne d09 406 40v J0t 1eddoo Qe T eR TR ZS IS N 1 2 TEN 5 4 A00F 08 Ld 2109 45 eT 21 IT m gt gt owes 1 SI AO Q II 19470 AUUIG6 gt i 5 OVI6T Qc T Huc o V8 S AOOV O8E 7HOS d Dr er nes p US N E OL RS 6 TWM TINY N eC ec y e X w 2 o gt X N A N IN pO N N N 1 4 IN IN J 36 y 96 7 70 926 T Je FIM B e CR CI 290002 8M dd Q 94 9A 9N Ad SM SA SN Hd VA dd EM SA Hd ZM ZA ZN dd TAITA T JON C c E coud E ew G 6 E 6 E Mr I ze 2 EA 94 94190 ms io E a T T NUS VW wW SUI VA TA ai
41. 411921412914 PA JV m es W N N N A N 74 E _ m ek 236 a erts qc aU on No Glee 1151 9 m NE N 22 N N Ei _ IN N E EY ARM CAR sa gt at En UWG 70 9215 SSULITM 10410009 10410 IV 1 2 es ES 25 cu 71243850971 SSUTIT 9 2 29715 SSUIITJA Cr gt 5 402 409 109 40 402 lt d 65115 I NI 2 830N E 067 A007 08 v X1 7108 dt TRR 11 gt oues IIV SIOMOTQ II 19030 L SNS WERT func T uuo T o u u u V8 S 007 086 7HOS d u So 4 N J N N m N N N 14 7 u6ue1 56 M P Z ro ni Tr f AC P d T 2 2 l 96 T g6 UG 0 925 d ad 7 g h ZI AA uy lt leuluu 190002 Hd OTADTAOIn Hd 6M 6A 61 SM 8A 80 Hd 24 21 70 94 9A 9N dd 94 SA Sn Hd FW VA Hd EM ZN Hd TA In CD 0 cc d E B Bud E cpu E Co Dad C 7e Z L6NT6AT6n ISMISATSQ IOMI9ATOn ISMISAISQ pd Ree dd ZWIP NON eI NN N ga v A MD NN NODI JAMO VI
42. INOOINOO 810 710 ETO I 110 N OX 18 OX 15 OX 14 X 11 OX 10 sire lt gt ipn E gt TY n lt E 2153 Qa lt _ 2527 4 2 2 SS ES A 7 gt gt c lt rx c c we D US 5 RI 2 i pe La Eon gt c I Era OU c quu TEJ kaf Ox ET E a Air cooled screw chiller technical manual 5 2013 01 PLC series Air cooled screw chiller technical manual
43. z c gt lt cs 5 2 TERRE i g e o a ani e 12 1 9 c SN 11 6 1 6 3 2 X 22 X 19 1 14 1 18 lt X 18 X 1X 19 M VAI V IVXc 9V3 X AAT pue PAAZ EAKZ 2X 1 2X CY 1529 20 x16 TX cO um 1 131 1X 12 X 21 X 20 X 17 1X 20 x17 J G I LO CN N el GIT 6 0 26 eG ler EE TET 6 661116 l 710 ETO IO 110 010 60 80 70 90 SO 70 50 cO EV T 061 9 LO e INOOINODSTO CIO TIO OIO 60 809000000910 90 G 20140110100 eg z 2 02 64610161 gt mg SNC MNCEN CIC C 2X 9 CY I VSIOGWI VV GV 5 2X m p gt N gt CN GARG 8 40 4429440 0440 7450 68442 04540 ZVNZ BAAZ
44. N AS 1 5 8 46 082 0022 6 ye px LXIBL XTAL XI am ESL 2 BB 7 qt ROME N2 V9 N V9 2109 dT 216 2HOS 41 qe JA ui Tu IST 204 IFI v40 mo 0 Tol THI IL PI 153 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual OO 1420 104 sis m MUNDI 10130100 M 2018997 To fpi am popu TOMAS 92009900 jer am ona A pa m 5 Lis VHo veo MN EX wen VHT 2 2927 16 0 Wu WH 154 5j XTLYZ eyz c TC T UC X TLIAT 89 94 Mi 69 2 82 7 691 9 1 RUE z 602 4 1 4 I we ATIENI 2117 LIT T ae 4 4 54 10 Aoza 285 vc 1 I 17 7977 DL 191 T dto N LING 6 2 L ZIT L ETWAT A
45. T In 6 4 Modular design Flexible combination B The units adopt modular design which can makes more unit connect together The unit can combine 8 modules Cooling capacity can be within 360kKW 7200kW meanwhile every separate module can operate as master also each module can be a slave unit with modules combination more convenient for design and installation Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 5 Specification Single Compressor Unit Model LSBLGCW380 C LSBLGCW500 C LSBLGW600 C LSBLGW720 C Cooling capacity Power supply 380V 3P 50Hz consumption kW 124 159 187 234 Type Semi hermetic twin screw compressor Semi hermetic twin screw compressor Energy adjustable range 25 50 75 100 4 step 50 100 stepless as option ArSde FansQuanity 6 s Shell and tube heat exchanger Water Volume Walter Side m3 h 103 2 123 8 Heat exchanger Water pressure drop kpa Inlet outlet Pipe diameter mm Dimension mm 2280 Note 1 Nominal cooling capacities are based on the following conditions Chilled water inlet outlet temp 12 C 7 C Outdoor temp DB WB 35 C 24 C 2 The applicable ambient temperature range of R134a air cooled screw units is 15 43 C Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Dual Compressors Unit Model LSBLGCW880 C LSBLGCW1
46. Warning Tithe Time Warming Messag 0 2012 03 13 10 12 10 20 Power Failure Prot t Alarm Information Page Click on If there is any alarm the unit will execute alarm procedure action The unit alarm status can t be button in Main Page to enter the alarm information page removed until all of the alarms have been eliminated and alarm shutdown process has been finished Reset i P Click on button and Fault in main page disappear the unit returns to normal If the warning message is more please click on k2 to check These in red color indicate the alarms which have not been eliminated these in white color indicate the alarms which have been eliminated Note 1 High Pressure Protection is unable to reset in alarm information page manual reset in the high pressure switch installed in the discharge pipe is needed 2 Compressor fan overload protection are unable to reset automatically please check the 44 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 relevant thermal relay in the control box to reset manually History Alarm Information Click on information as shown in Picture 8 2 Max 5 warning messages can be recorded meanwhile The button in Alarm Page to enter history alarm information query messages will be updated automatically if there are more messages Current Time 2012 3 13 TUE 8 13 Warming Message LWT 16
47. m d a eee m a at z Val yup T k i sis 3 i Fr y Ful s E E Fa BE 4 E l AF r J Operate the fans one by one before operating the unit and inspect whether there is abnormal noise in the fan caused by poor lubrication of the bearing or friction of foreign matters and whether the fan rotates reversely or does not rotate Inspect whether the directional elements such as one way valve solenoid valve electronic expansion valve etc are installed properly The directions of the one way valve and solenoid valve are indicated on the valves As for the thermostatic expansion valve and electronic expansion valve if the valves are upward the direction is generally high in and low out Refrigerant Flow Directi n Refrigerant Flow Direction in Electronic Expansion Valve Inspect whether the pressure sensor stop valve dry filter front rear angle valve liquid air sampling stop valve and injection stop valve etc are all open When the unit stops the high and low voltages shall be almost the same After the start up the low voltage decreases and the high voltage increases If there is no voltage change certain time after the start up inspect whether the liquid air sampling stop valve is open After the unit is installed and before connected it is required to tighten the connections in the
48. oe E 5 z gt E lt a gt 2 PERA IT ET gt lt P us 1 D 5 5 Ea Wis qu co aco i i a c gt a gt on har 4 Se EC E Lal C27 c La CY lt cS Ex Em 2 ds m c 55 Qu 5 c lt 2 gt me Luo ene 7i 0 Air cooled screw chiller technical manual Air cooled screw chiller technical manual PLC series MCAC CTSM 201 3 01 lt LO SS 1 ro 5 ro C LO ro ro N ro ro ro ro Aux Heater E D Heat pump 22 z 1 T cating Lanp Heat pup e Q ay a Heating Lanp Heat pump x19 X3 _ Cooling Lamp CD xi SU X gO lt Ala m N O e X 15
49. L s 44 87 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Note WAIT Control State Type of protection running Run Low superheat evaporation temperature protection High evaporation temperature protection High condensing temperature protection Standby Locate Wait Close s Function Button Pre HELP shows the interface v UP DOWN Enter gt General wiring diagram A ji 13 2 LFower Supp y cosrexcilan UUUUUUUL m 5 2 M Ly Analog Dig zal z mE CHE Me Pod T _ _ kx Am A 1 Display second kinds of variables 3 Retay ouput sias 00 Start of the protection 6 Control state Open the display screen enter the password to enter the programming mode n the alarm state the display alerts the queue When the producer level under the rolling parameters the display To exit the programming maintenance producer and display mode set a parameter the exit without saving changes ncrease decrease the value the parameter setting mode the display switches to Confirm the list of parameters and return the value COMI NOI Alarm Relay VREF Sensor power supply S1 Sensor 1 pressure or an exter
50. 1101 90911 Bs 67 1010810 U j n 01 Qd JO 110100 pepuejr ev 8c LIN 6 yq Jo 10 popuarxg zy LZ 1010 W 8 91d JO 51100 14 IV 92 AR OY OTAJ 190109781 91055911 2 sd zdl 14 oz 10199100 1055210 0 TINY 9 0116 9155214 Nu 45 245 145 0011293024 19804 Di 9419 1012106 6AA TAA ec E M 204 ind v 105196 9101919009 dus 22 ITY dO 240 Z 139 199214 110311 Jo m P 3 I9yeolg 1119113 958 del 2 YOU ING 11011221014 a 07 19010 1500 309110 ZYL 1 14 25 WALT TOANAS WALT 14 25 WALT TONAS WALT 6 b 158 idea ChongQing Midea General Refrigeration Equipment Ltd 15 ROSEBUSH Nan an District Chongqing P R China Post 401336 Tel 0086 400 822 9229 0086 757 26333930 Fax 0086 757 26338807
51. 4 1 _2 AJ e SBLGW600 C TOTAL SHEETS OF SHEETS 6 118 5 2013 01 PLC series Air cooled screw chiller technical manual 4 600 C e 21116 9497 10 cs 115 61 27145 9001 1 0 1 HS 81 12116 foy ie VS LI 912 uorsuedxg 18211122911 X3 1919 9101D9U191U IVY 91 AJLA 101500014 20121299 JO 19404 OTY 271146 979914 1 0 cos GT JONOg 101146 2146 MOT 191 195 O NPOW 941 101519074 7891149979 8V Z 19109 1088910002 CHA THA er 199126 1210 JOWIOJSURI 10110051 TL ZI J JO 9 npoy pexry 8918015 soy eUy f o 10199101 gs H Vid JO 91110190091 T 62 30198100 01 Jd JO 9 npoji 100310 90191 4 82 9 LII 6 J0 101depy zy T 1010 GD 8 J JO 9 0pO jq IV 92 AB OY OTAJ 192181921 91155911 I zdl Gz 10128100 10559000 TINA 9 05 97185924 545 245 145 Ve 9 npoj 101129101 19400 TDI 9 9412 10 910 ez 9514 end cad TAJ
52. 5 2013 01 PLC series OVA00 10 Indyno 10 spuejs zz X X pue suoneoiunuuJoo niuJ uonoeuuoo 10 Spuels Z X 6 X leuis anissed jo 10 spuejs g X X CC X VX Ind z ON pue ON JO 5 941 UJ uy 08 Xb LL X esind 116 F 9 XL 89 X E EE NS fouepunpeMgp Xl SpXL vS9XI SEXL 2072 b 5 uw E res fouepunpeMpE XL E XL 2 00 C 2 Japso s nd AX3 1 Bojeue oqrZ 0V0ZZ au Aq si gt m c Er am E 5 22 5 e e e e 26 06 1 6Z XI 211 wap e e e e e e e e e e e e 4 91 6 OTAJ INA 25 9 XT LX x 1X X IX 6NY SNA LWA ONA PNA NY CNM PAA GAA vr ers b i b x b di T ze N
53. GG G X 21 ch I X 20 Ip 9VM 1 lt X 18 3 4 1 18 BAS 17 66 26 1 96 I 1x 17 IX 16 1X8 ce LIS I TNOOTNOD STO 710 510 GIO 10 010 60 80 40 90 60 49 4 V LAS TVAUGWL VV TNOOTWOD STO 710 510 GIO 10 S800I020 00 LO 50 10 00 O 1 O c SB XS 15 gt a SAAG Es gt lt N Cy 2X 9c3 ed 66 SWIZLNIZONIZ 16 61 GLI CNG GIST CNG 5 gt nm CN 53 TM2DOCKN OX 14 gt N eo gt OX 11 NG LO Eme gt OX 10 ddo edo 6446 Alarm C Economizer Tal Inject Val ect V Mid In j a Valve ny teat up choy Valve ny eat t c C qN LS
54. G INC s 58 GNE UCM L 1982 4200 19563 443 18360 1756 4976 343 16876 S563 14917 5355 98 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual iple reference map LSBLGW380 C WIRING DIAGRAM t princ circul Appendix 4 UOT ISOd 15 1 YOUMS 411201132919 m N jj N N 7 e teh Se BISTA LIST BN 0f 9 6 Q CNI CW CW 88 Bi IS KNA 05 UG 0 9715 SBUTITH 101300 19010 TT
55. Sl T TL gt ug gt yjbue7 SUMIM 0 26 918 sIoMO Q II 19410 gt gt x VIGI m m __ V8 8 MIG 6 1007 086 ZHOS dt CUNMID SION MN AM HF up N N N N OW N N IN des cd ae ae MP ELE 96 9 96 9 41 5 iu Rarer FEAT i 8d 8 dd AT JAT 201 dd 94T 9AT ad CAT SAL enr dd VAT pat Hd EAT CAT ent dd ZAI ZAT 201 3d tat TAT 7 E cbr D Lu UL cd gba E R 5 nmn E C B pur D Chan Lp Z 1 2 q L EEE RAE 2003 de dd N N en a 7 ag Ton Ul InpoN U0l 29 01 d Jamo d ee 11111 VI 0 duc 0 7 ouvs 8194014 II 19010 4 m i V9 1I x VI 402 22 UE FOE DT HUNG Tag B A ew d a NN x W9T 405 T e e T e q J l ji d at VV AS JOTE 5 _ b 477 e e e 2 lt it e e e pe e e Gs XI XI TI IX 4 N Jeddoo ulu 0 190002 9 09 AOOV O8 amp 2109 Hdd N d 143
56. 95 Appendix 4 Electrical circuit principle reference 99 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 I Product 1 Nomenclature 990000000 909000000000000000009 0900009000 000090000 9090000000900000000 4900000900 0000000090 000000000 000000000Q0000000909 380 nominal 2 w air cooled condenser LG compressor 00 0 B semi hermetic compressor LS water chiller
57. S a lt H N oO H lt B LO LO O LO CY lt H LO eo LO LOO 100 LO LOO Wo OO OG OGD Wo Wo gt lt gt lt gt gt gt lt gt lt gt gt lt gt gt gt lt gt lt T ro ro T ro ro T ro ro T ro ro m N ac E 2 Leaving Water Tem Standby Ambient Temp CY 4 12B 47198 4 g LSBLGW380 C 104 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual 02116 9497 10 zr 115 61 21145 900 1 9 jl pe 81 21146 19 VS LI 941 uorsuedxg 821212911 X3 9 81 91 9818 101509054 101210919 JO 1901 OTY ve 21146 92991 T1Uy o 295 GI TOMO g U01106 21146 4014 1918 n TOS pI o npoy 9419 101519011 2991119911 8Y Z 19109 205591010 ZHU IHA e 199125 210 19010 29082 00118105 IL ZI Jo 9100 poxry 8218015 soy Ruy N 0 015 121991911 as H yn JO 907819009 6s 62 101080 084 ON 01 24 JO 21100 114110 90971 a 82 Aeyoy 6 yu 10109pY p
58. 250 5 50 in the following case Protection setting of fan heat relay overload value the number of which corresponds to the fan overload protection value 3 Inspect whether the value of phase loss and reversal protection is set correctly The over under voltage protection value shall be 10 of the rated voltage 1 3 Unit Parts and Inspection of Leak Points 1 The discharge line valve and suction line valve of the compressor must be fully open turn anticlockwise to open and the cores shall be tightly locked to prevent leakage of refrigerant The discharge line valve shall be open both valves in the figure are closed and shall be opened before start up 54 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 2 3 Inspect whether moisture content of the system exceeds the limit Excessive moisture content in the refrigerant system of the unit might cause ice block copper plating etc that would seriously affect the safety of the unit Therefore the dryness of the refrigerant system of the unit shall be inspected from the sight glass before and during operation of the unit purple indicating dry and pink moist as shown in the below figure When the color turns to red the filter core in the unit shall be replaced with a dry one The is indicated in the center and compared with the color card around it to reflect the moistness in the system Sufficient
59. 4 Inspect the electronic expansion valve control module for alarm trouble 5 Inspect whether various temperature points displayed on the display screen are within the normal range Before the operation of the unit the showed temperatures of discharge fin and the ambient temperature are close to the current actual ambient temperature and whether the entering and leaving water temperatures are close to the water temperature at the user side If there is any obvious deviation of the above temperatures inspect whether the temperature sensor is in normal condition and whether the connection is firm and reliable Values of various EWT temperature and pressure points LWT OIC showed in the main Ambient Temp page of the unit Discharge Temp Fin Temp Suction Pres Discharge Pres 6 Inspect whether the flow in the water pump meets the requirements of the unit 7 Inspect whether the power supply of the unit is stable 2 Parameters Inspections during Start up and Operation 59 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 1 The maximum range of parameters for normal operation of R134a refrigerant unit See table 2 for the maximum range of performance parameters of R134a refrigerant Table 2 Working Condition ___ Refrigeration Suction temp a e 2 Keep good record of unit data during commissioning 60 Air cooled screw chiller technical manual PLC se
60. gge 1 toc Me qN 9 2 9 1 puc 445 G MIT 197 1971 4 F XZ pZ XT L L 51 an sw 91 6 760 6 epos YI g 145 154 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual OVA00Z Jo 1ndno 10 spuejs zz X e LX H pue JO 10 Spuels Z X 6 X jeuBls aaissed jo spuels g X L X CC X x Jeuiojsn 2 1nd Z ON pue ON au uj 9 08 11 sInd AX3 c 91 1 99 leus Dojeue 22 ee d e TPE
61. lenz ad zaz 242 eng gd DZ D E B 5 paag L 5 L _ 12 HR 3 5 42 BES SES EES dd c un enc woe V V N NW E owes ore sIoMO Q II 19110 4 14 4 V9 TI 409 Wor 406 d Wor WG Tk T LUG M eni hus Gr e e e e e Je 461 dd 1 T 71 rie TIE yoze reuwusay 19ddoo 0 007 086 2109 dd N d 5 2013 01 PLC series Air cooled screw chiller technical manual 0 Q LSBLGW880 10104 AXA JM 1080 SIS 1010 AXA VS 105009 00 UB sui 19104 1 199 T 87 1 387 A387 A387 8 A34 p T 84 Sf 81 04578 D Wm Y N 25 3 O E DIE YS
62. o 8 i wo W02 prerns 00 Id n 10 In 60 UR 9 e N 1 15 10 9 19 6 NHdedOr IV ON 1 011 9n 61 LI cI I 1 01 I KI 6I J m tH a on a wo J TI 002 182 we 06 le oz lez kzz joz gl Jor FPL EL or 8 VG XIG XTI8 X 0S XIV XIGV XI66 SIX X e Lu gs lt gt 0015 E VS 145 VS Ty OI TSH 546 TIS 205 645 145 006 10 Bo XIES XTIA X 6v XIBV XI C C c C C C C C c C e C e y 0 7 e 81 9 E x Z EE u JE 2 6 ars lt aa ca 2 gt Lj gt lt C Ew 5 S s gt a 5 gt 5 gt w l
63. vS XL S XL _ Aa gt ES uy jeuruuey pereredeg JSE 2 002 E 5 Ke e UE c Japio esind Ay 3 jeubis 027 au Aq si jeuiuue X E I 2 I VS I ie 11 9 ell ogxr L6z xt zr 211 e e e e e e e o e e e Hs 4000471 qu 91 0 OM prie 29 esl 00 CJC X JX TATENA TISWA ETE PAAT SAAT CAM TAAT IVT V3 v 25 T Feces oe D GX CD exp oI X 201 6 X Z I T T6l TATE 81 TT TTT TOT 271 JST 96 96 Z6 e mmo om o i wo po v lt gt W02 pens 00 10 10 110 60 9Q 02 1 716 m 2A Y Y ag 18 ON QI 071 811 911 CH 61 1 CI 1 01 1 IZ al Qo HI 23 Ol j 9 I 002 02 2191 2 91 2182 Toe pe T go 10671 186 71 92 71192211021 00 TL ST TOT T YT IRT T OT IS I EP 9 X IG 1 8 109 27 XT rye V XUZV XT66 XT88 XT LI X 9 XI N HaHa SAN N a 00171 1 3 3 EOS 22457414574 VS SM I TVS TAA OI TMd T 646 1116
64. Beyond the operation range Mode temp protection water EXV module failure Low pressure sensor High pressure sensor Ambient temp sensor entering water temp sensor Entering Leaving water temp sensor EXV Control Module difference between high pressure and low pressure of the system is smaller than the setting value of 4Bar the differential pressure switch will be switched off and the indicator of differential pressure switch of input interface will be out The other is PLC calculation namely that an alarm will be given if the differential pressure is smaller than 4Bar To be detected in running report protection of too low suction pressure when the refrigeration suction pressure is lower than 1Bar and the units will not be restarted until it is confirmed manually on touch screen as required To be detected in running report protection of discharge pressure when the discharge pressure is higher than 20Bar and the units will not be restarted until it is confirmed manually on touch screen as required The system will be automatically stopped when the ambient temperature detected by the system exceeds that set by the system for continuously 5 minutes Detect water temperature in the refrigeration mode after start for 5 minutes and report mode water temp protection when leaving water temperature is not lower than entering water temperature for continuously 5s Start detection upon p
65. C10 4 99 6 42 lt NHdddOvdVC IST lN IV ON 021 8H 9r STI 11 61 LI 3 pI 1 01 Hl tl OH I 3 wo amp 002 oo 186 9e ize 06 loz lst jot EI OL e VS XIIe XL 8 X OG XII LEX 156571 VS 145 VS 8 144 Yd 845 115 VIWM S 745 145 295 IOS 6r xisr x PE XITPIXIDEIXTACIXT9 X 9 XI 41 9 Ee E c lt r 119 8 41 9 e e e 2 e e z 39 6 Air cooled screw chiller technical manual Air cooled screw chiller technical manual PLC series MCAC CTSM 201 3 01 Aux Heater Heat pump Heating Lamp Heat punp 22 X 21 45 KAG O 19 X 20 41 Evop Heater Heat Purp LCononizer ym SOL Volve Orly Heos Purp Amy Valve Heat Purp
66. fene ee E SS E J J WY dc OS ON SZ N X eR Y dede ip VE ON 4 2555 quo 9 Z 8 9 75 2 m Wu 25115 7 7 800 082 V XLL N HOS d EE E E ujBue sBuuM 9ZIS SOUL 4 Vye jeuiuue 5 JIE SIOMO Q 71 19410 ENS VZET WUC C s T 210 V8 s Mic c 100 086 7HOS de _ ZINAT gt p PETIT D P N u ES ss i b P 6 N Pos E a A N W xl UNS N 2 A 2 P 06 9 96 9 qdl e S aged eru J 2171 9 6 9MI 9AT 911 dd SAT SAT VMT VAT PAT 34 EAT ent dd MI AL ZAT dd TAT E To T 2 7 1 BES 558 seed 22 gni mi a en Un npoN JAMO 2 1 1 1 21111 VI 0 duc 5 M 4 M oues ote SIOMO Q 11 19410 mE V9 TI ox VI 406 l C4 Te HG kE 5 4 80671 amp Td 407 1 SWOT AOE T EE gt d gt de ex e 4514 e e e VI9C JDI L me gt gt 477 e all A 5 E 11 Xl an TII kx 4
67. 16 Heater Heat Purp LO 1 19 Z 1X 20 Ecomonizer o 1X 18 1X 17 lt P lt Tail Inject Val nr E mb 2 116 lt ject Val e f IM 51 1013 Bypass SIL Valve rl Heck Purp au has Delis 505 gt gt lt N yay Valve rly Heat Purp T X 10 2 19 1215 gt N TM2DOCKN Jg 1 1 a 4 x lt H lt H L SBLGW380 C SHEETS ix 103 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 gt gt c4 a CO lt a a Ex L 2 2E gt 9 gt 8 2 2 18 4i NODE lischarge Temp LO 24 00 di 50 5 ps lt lt lt lt 52 lt lt lt lt 4 IM 6 TMZARISLT IN IN3 5 12B MI A6 e Bei
68. 2 E lt gt w lt Ace 7 apu i lt 5 a3 lt Sas Bcc E lt g im vn T a s E 23 a Li ao lt gt c gt gt ao 2 2 EE ae L E c E lt EE 2 v 3 5 B lt 2 gt mud Ee E gt aT mm 6 lt cx 5 C a ou e TS aee c3 m jo ES oF 1 5 9 7 UL bi E Air cooled screw chiller technical manual Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Aux Heater Heat pump X 22 Heating Heat s 19 21 43 6 X 20 41 00 01 02 05 04 05 06 Q7 Q8 Q9 010 011 012013 014 915 COMICOMI X 18 17 39 X 15 X 16 e O 1X 19 1X 20 e CO 1X 18 11517 O 1X 15 TM2DRATORT 1X 16 E 1X 13 29 pms ALL Vale y es 1X 11 JRE 27
69. 4 Recently First Alarm EWT 16 4 c Fin Temp 20 5 Ambient Temp T DOWN Discharge Temp 52 4 Alarm time suction Pres Bar 2012 73 13 9 13 Discharge Pres T 4 Bar Pres 11 4 d 11 4 History Alarm Information Query Note 1 The history alarm information record the unit operating parameters when there happen unit alarms during the compressor running win win watanta 45 Air cooled screw chiller technical manual PLC series MCAC CTSM 201 3 01 ERA Multi Units Status 2012 04 29 13 05 22 Please choose the module to query Multi Units Status In this page you can query the status of different modules through choosing the corresponding module 46 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 button also can check the status of all modules meanwhile through master monitoring Master Monitoring Page Click on to enter the next page it will show the information of all connected units as following The communication alarm information status refrigerant type of each unit can be inquired in the following pages 2012 04 29 13 05 22 Communication Alarm Status Defrosting Refrigerant 0 Master Stop R134a 1 slave Normal Normal Stop R134a 2 slave Stop R134a slave Normal Normal Stop R134a Stop R134a 52
70. 814412 Wiz 8072907 06 029 2 Jj vu d tds FIS 7070 bv XZ8P XZ zmz M 411 9 00172 L Sure 2HDischarge Pres Standby l Discharge Temp IN 9 I 99 1 ISG Lo uil 897 2 RI5 69 X6 2 9 76 29 6 lt 253 lt 9 2 79 X2 266 6 I9 X6 1 5 097 9 G 29 1 lt 3 28 lt lt m 23 IM TNPARISLT Anbient Temp Standby ter Tem Entering Va Leaving Wot My A C e c pa gis pm 7m gt I LS d 512 ea C 5 lt aL 3 5 ES ENDE lt xo Ee ME ae 5 c L EE __ ET gl EC Du evel peed foes I c cx ex t cup d ex CO HO IUI L OON USUS 91919 LGV SB L 13
71. 96 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Ambient temperature Outlet Model Temp Cooling Power Cooling Power Cooling Power Capacity Capacity Capacity Cooling Power Capacity 5 9534 2166 9102 235 5 8781 2499 8404 2671 8187 2777 7651 3007 7322 3149 6 9954 2184 9498 2369 9149 2529 8746 2702 8486 2812 7941 3047 7586 318 8 7 10373 2208 9894 239 5 9519 2560 9092 2736 8 107 1 2232 10289 2422 98 amp 8 259 1 9437 2770 9121 2891 8534 3130 8154 3272 9 11210 2255 10684 2448 10258 2622 9782 2805 943 9 293 1 8830 317 1 8437 3314 880 900 5 13 12884 235 0 12265 255 5 1173 7 2744 1163 2941 10710 3089 10015 3336 9572 3482 14 1330 3 237 4 1266 1 258 1 1210 7 277 5 1150 8 297 6 1102 7 312 9 1031 2 337 7 985 6 352 4 UNE AGE 1047 0 244 0 1002 7 264 9 975 6 260 5 940 2 298 8 929 6 309 6 969 0 335 4 631 3 351 3 kw kw kw wore 2503 sos zm4 00 2900 10625 3098 10534 37228 9675 3494 9255 355 1000 G3EUTERCIW UNE IE THE COE CONECTA 2566 12886 2800 12382 2905 sid 3009 II409 3364 10619 363 7 10220 3802 ae lue lu CMM LEUTE NE L
72. EN e oos lt e c SEE e gt 45 Gu Ss lt ote E C mn 5 CA Y k NETT aa Ca Des Lit ae ft 2 C Ew gt E a 2 gt H H I 2 5 d gt l ae i xe Eur 471 8 SUCUS X 19 1 19 X 22 C X8 X 1 19 9VM X cVMI 1846 EAAZ LYNZ ALI CN 2X 8 26 OX 21 X 20 16 15 20 x up cd ur S KEE D 15 gt lt eo gt gt gt 1211267 07 97 ez ie TII T T lloc Tee 1 IWOOINOO ETO IO TIO OTO 60 80 ONODOWOO 70 90 50 70 50 cO IO 00 1 9 4 1 V 01 9 99 LAS TVAUGWL VV 60 80050200210 90 90 9 20 O IO 00 627215 00 0611 612 E BWMZLNMZONMZGNMZVNMZENMZ wz 6BAAG BAAG LAAG 9AAG euo Vado eudo euo
73. ES gnXDT SIXT er Ge oZI X 201 ec ATG 161 LAT I LI ue 2 86 96 ST imo o 1 80 D maa m W09 prers 0d Id 710 10 60 90 50 102 1 TIS Y NHddQOTVAVq IS 19 IV ON 061 TI 911 ETI IH 61 LI I 1 01 10 ll ij 611 LII 00 II 2 OTI 4 81 4 9I 10 eI 0N02 02 81 Z9I c 88 T98 T 8221 92 115271 05 1 81 11911 DEI OD T 8 T 91 7 007 066 01 6 116 18 109 66 GX IP X LEX d SEXT N Aal a m N pc WELT 5 Hay 0017 Hala k 1 5057040457414574 VS 9 1 IVS TW 8 UAT CdS 11715 TSINMI 205 1245 7114571 205 TOS 2 66 1 Ze XT AIX 6v XT8v Xl PYXXITP XIOP XILe XI 9 X Teix Z X 90 XI c e c c s lt E c lt v 1 e e e e e e e e e z 139 5 2013 01 D 1000 LSBLGW 140 PLC series co L c zc 5 lt P 55 3 d re gt lt Ew 3 gt c em an c a LJ gt EI gt 1 E EZ us JG p
74. IQ pS S CS IS OND 114041 181181 40 0 180 1 99 19 69 dAd SV TTE VG edd C que oat iut Ds 10119102 K ddng zu gem IN 2 09179 VG 06 88 98 78 6S F AVG OV an E gt T 12 A0gg 0491 7 p V9 2406 dl SIC HS dl 8 54 i81 mq vao 2 dnd 1 T on pr V uc 0 a WD LSBLGW 114 5 2013 01 PLC series Air cooled screw chiller technical manual 600 C 45 m DIA Tab T fij an 110138400 1 099790 010 190 doye L Ku CL Emy Tiwi a amp 7 08 CE XT gepa y 910 69 Y m 38 N Ir T 2 ATA CIO ID gt 1 UOJ 2 dS V7 7 19 JST N 69 2 F lt 19 45 an ex 91 2 8 e XI i e s EI 115
75. LSBLGW7290 C TOTAL SHEETS NO OF SHEETS 125 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual LJ xs p C ILAS 9497 10 TIS 61 01 5 9001 1 9 HR 81 12116 foy 1 VS LI 101519071 89112911 X3 Avpay 1 9 19 0 91 2117 uorsuedxg 201272919 JO 1940 OTY 121146 97991 1 ZOS ST 19404 YO TANG 0114 MOJA 1917 195 VI Inpo 941 101519071 21112911 8V Z 19109 1088910002 CHa THA I 192126 0210 19020 001 1011005 11 ZI JH JO 9 npoy pexry se surg 80100 i og 4016 gs H Vid Jo 9110 91110190101 os ez 10108110 INY 01 J JO 911004 200700 90091 4 82 LIX 6 yd 10 101 popuoix m 12 1010 qj 8 J JO 9 1 0 14 IV 92 puo IoAQ 9191 OMA L JOMPSUBI 9155914 PS oZ 10108100 10 910 0 INN 9 12146 911589 645 245 145 Va 9 Tpoj 0011993014 19400 DW g 9419 1012106 GAK_TAR ez 934 end 09 Ind 105095 911191909 TU 22 ITY PAD EJO 240 1400 I9
76. Les 2875 13664 389 13004 309 12483 3501 1683 3701 3948 97 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Ambient temperature Outlet Model Temp Cooling Power Cooling Power Cooling Power Capacity Capacity Capacity Cooling Power Capacity 5 13166 2718 12609 299 9 1216 0 323 3 11657 3503 11311 3707 1065 1 402 6 10248 4220 6 13673 2744 1308 5 303 0 12598 3272 1206 0 3546 1166 1 3757 1098 5 408 1 1056 8 427 7 7 14178 2769 1356 1 306 1 13043 331 0 12475 8 1468 3 2794 14037 3092 1348 8 3349 1289 0 3636 12427 3868 11695 49 7 11245 4307 9 15188 2820 14513 3123 1393 3 338 7 13305 368 1 12810 3923 1205 0 425 6 11584 4458 1200 AERE INT TAE WEAR 37318 3E 1771 3 294 7 1689 3 327 7 1615 8 358 0 1538 0 390 8 1472 4 419 9 1382 5 454 8 1327 8 475 9 Ls Dues psp nme ses us sss ne nos 1516 8 353 6 1469 6 378 0 1416 0 406 7 1362 3 435 6 1331 3 453 7 1255 0 492 3 1206 7 516 6 kw kw kw TO 8 _ 1659 2 30501 1610 7 aor 15543 4281 4SGL 14688 4783 1348 SII 13250 5378 1420 NONE TAETHE 7AEFTOINUTERE 3 TRE OGKCTRY OE CER A34 CAE A uc NEC M
77. Midea Air cooled screw chiller Technical service manual LSBLGW C Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Contents L iere e UN 3 emt 3 2 uyu unu uuu asum 3 22 ExIer al ABDearanC6 4 D E 5 5 u u u lu 8 0 e PTT 10 Ta OUTING u 11 8 Water Flow Water Drop Pressure Curve 13 m M 15 1 Installation Dimensions amp Vibration 15 EE creme et 20 8 Installation Spates rs sas roS 20 4 Installation of Water Pipeline System 21 IB Electrical Da3I3uuu uu xu M 26 NES Wiring sciis ua un y a 26 2 Electio para
78. ZNZ Ad INS TAZ 102 Nd Chaz D BO D E CC kau E pag E c cac sista daa TSE c 3 NN mi fev es ANE RARI 2 M MEUM V elc NN wo NN Uc z T fou s oi SIOMOTQ II 19410 gt 1 i V9 TT ABL 409 2 e TW T E il d e e e e 401 a e C l eT 5 n 2 4 T e UE p 21 ZXZ 2 2 Dg IXZ i 116 jeuiuue Jeddoo uulc 0 N AOOV O8E ZHOG Hd N d Air cooled screw chiller technical manual 5 2013 01 PLC series Air cooled screw chiller technical manual m 1010 108090 1090 AYA
79. and transport temperature 25 59 C In 40 does not exceed 50 25 no more than 9096 Applicable altitude range No more than 1000m RH relative air humidity 10 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 7 Outline Dimension 1 LSBLGW380 C unit mm chilled water outlet DNIPS 2 LSBLGW500 C unit mm chilled water inlet Ku T mm N chilled water inlet 1105 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 4 LSBLGW720 C unit mm V chilled water inlet 200150 5 LSBLGW880 C unit mm ater outlet 7 DN151 6 LSBLGW1000 C unit mm CAL LAU I 12 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 7 LSBLGW1200 C unit mm Chilled water inlet chilled wafer outlet a chilled water outlet DN201 chilled water inle ON200 N TWh 6 8 Water Flow Water Drop Pressure Curve Balance the chilled
80. circuit in the units b Results of action execution the unit shuts down and power down c Processing mode inspect whether the electric control part of units and insulation of loads are normal if yes power on and start the units again and measure whether the working current of compressors and system pressure are normal 5 Compressor thermorelay a Protective condition too heavy compressor current or existence of short circuit failure b Results of action execution units stop display of compressor overload on touch screen 32 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 thermal overload relay trip failure of start Processing mode inspect whether the compressor part and insulation of loads are normal inspect the pressure value when an alarm is given and balance the pressure if it exceeds the running range Please monitor the current of compressors in real time to ensure whether it is within normal running after the compressor thermorelay is reset 6 Sensor Failures Sensor failures include short circuit and open circuit of the temperature sensor and the pressure sensor transformer The current transformer is also included according to the stepless type unit a Protective condition any sensor failure b Results of action execution stop of units display of corresponding sensor failure on touch screen failure of start Processing mode inspect whether the wiring of faulty sensor is prope
81. connection Parallel connection of units S Expansion tank nS lt Inlet water ED T E Drainage valve Thermometer Soft connection Md ul gt Lb Lb m Pressure gauge Ice 4 LI Stopvave 4 Check valve filter o rj flow T T PIE 588 ey tte L Stop valve dl Auto discharge Water flow switch Cycle pump air valve Ll flow Drain water valve Connect the terminals 1 3 The water inlet pipeline and drain pipeline shall be connected according to the requirements of markings on the unit Generally the refrigerant pipe side of the evaporator is the chilled water outlet side The chilled water pipeline system must be provided with the soft connection thermometer pressure gauge water filter electronic scale remover check valve target flow controller discharge valve drain valve stop valve expansion tank etc The water system must be fitted with the water pump with appropriate displacement and head so as to ensure normal water supply to the unit The soft connection shall be used between the water pump unit and water system pipelines and the bracket shall be provided to avoid stress on the unit Welding work for installation shall avoid damage to the unit 1 Determination of water pump flow Flow m3 h 1 1 1 2 Unit Cooling Capacity KW 5 8 2 Determination of water pump head Head m Unit Resistance see product parameters Resi
82. electrical cabinet of the unit one by one Inspect the bolts of the unit for looseness After the unit is transported and installed it is required to inspect whether the fixing bolts of the unit e g fixing bolts at compressor base angle at post and beam of the unit and at pipe clamp etc and of the electrical elements e g fixing bolts of PLC and of insulating transformer and 56 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 connection bolts of upper lower terminals of AC contactor etc are firmly fixed 9 Inspect the looseness of the connections in the electrical cabinet especially the electric part in the cabinet The parts connected by bolts might be loose due to transportation If there is any looseness tighten it to avoid burnout of circuit or element caused by poor contact Inspect the looseness of the terminals and poor contact caused by vibration and collision during transportation and installation especially the electric part ensure the connection points of all terminals are firm and reliable before electrification All terminals of all heat relays of the fan must be firm All connection points of terminals must be firm and reliable Inspect all terminals for firmness and reliability before electrification Inspect whether there is poor contact and short circuit caused by dust moisture etc in the electrical cabinet and whether the values of all temperature sensors are nor
83. manual PLC series MCAC CTSM 2013 01 220 L1 L2 L3 N L Intermediate Electric control cabinet relay customer wiring terminal b A Pump contactor TE 13 14 ur d i b dq d emm M Pump motor Diagram for Wiring of Water Pump Linked Control 12 The wiring ports for remote start stop flow switch cool warm switch water pump linked control alarm indication etc are reserved in the electrical cabinet of the unit with the numbers shown in the diagram below Only double head Customer wiring terminal Inside electric control cabinet 112132412161 718 13141516171819202122 2324 electric control cabinet E Q Es zu 2 e T p T 2 E S ct 1 lt lt SUSU lt Numbers of Functional Ports Reserved in Electrical Cabinet 13 Passive inching button is used for remote start and stop and the flow switch must be connected to the NO contact or the machine cannot be started Passive holding switch is used for cool warm switch e g common selection switch Control
84. the compressor is running at 10096 loading Control of Cooling Energy Adjustment The total entering water temperature may be set as Ts Ts settable with the touch screen the set total entering water temperature Ts 12 C as default settable range varying from 12 to 15 and the total entering water temperature is Tin Start Reset Temperature gt TA CTA2 18 1 The temperature control cycle for Loading Area temperature judgment in the table is Fuzzy Loading Area Ts 0 5 Tin Ts 1 605 settable Stable Area Ts 1 lt Tin lt Ts 0 5 In the case of judgment of the Unloading Area Ts 2 lt Tin lt Ts 1 temperature rise trend compared Stop Area with that of the previous temperature control cycle of temperature control cycle for the fuzzy loading area if temperature rises loading will be executed otherwise no action is executed When all units of interconnected modules having been put into operation are loaded to 100 entering water temperature still remains in the fuzzy loading area without starting the module to be started and the module to be started will not be put into operation until entering water temperature is positioned in the loading area Compressors and fans of modules will be stopped one by one in the energy adjustment Stop procedure after entering water temperature enters the Stop area and compressors of unit modules meet the requirement of the shortest running time Then the units enter the energy adjus
85. y 108090 211121909 M 22 ITY PAO CAD ZAO 189 I0ye9Jg 1100115 OID UIUTR 20115 198910 110021 95 ES 2 21146 10112291014 cos 07 IOUIOJSUPI 1091110 ZVL TVL I 1141 25 WALI TOANAS WALI NOILd1YOSad WALI WALI 119 5 2013 01 PLC series LSBLGW720 C WIRING DIAGRAM 120 uorjrsod jueu ejsur XIV gt s lt s ipei 10SseJduio2 d A Ti E m YMS uonosjoJd MOTA
86. 0 GIO TTO 010 60 80 ONODNOD 70 90 90 70 50 399 1 LU9 TVSOcNL V Ld9 VV TWOOINOO STO 710 510 610 LIO amp 800n050N023 0 9 b co pO 60 00 10 00 2X 1 ZVZ Qee 6276 LO IN 2X 9 ed 5670 Lo OTNMCONMZ8SINNZNNZ INNZ SWZ 61 421 GIST ENAS CNAG L 2C TS LAAG OX 14 OX 11 gt 23 E N LO LI gt OX 10 KO ro Aras rA rZ Udo euo cuc TM2DOCKN 121 9 Alarm Economizer MidInject Val SIL Vo eli at Pl r J a m E Was gt fee Lr Lr 2 SAA E gt m 2 2 1 gt LI I 1 qu 161 8 156 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual
87. 0 0 M oues ol Me N 4 2 M 1 T 7 118 1930 V9 IT coco VI 400 VS ec ee EVE C C C TR LUG sh WI I d o WT 809 ms 105 m m dor m V9I 106 e e e e e e e e 11 e e e e e e e gt vara dolg gt e e e e e e zT des 4 771 1 1 eX eX GX GX IX IX yopa 190000 0 007 086 2 06 Hd N d Air cooled screw chiller technical manual MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual V9 1052 N ETI 81 1 1038 AY QUAS 20505 atu me 0199 1011010 ul i I B bd OLEI 99 LVM NJ OIN N J a 9 1 922 1 I gt lt J N 28 08 82 92 cH THA KH de N XW XL CIT IIO pS S CS 15 QN 11401 181181 40 0 180 1 7
88. 000 C LSBLGW1200 C LSBLGW1420 C Cooling capacity kW 880 1203 1419 Power supply 380V 3P 50Hz cm x 3 4 _ consumption kW 285 318 381 466 Semi hermetic twin screw compressor 12 5 25 37 5 50 62 5 75 87 5 100 Air Side Water Side Wat T Heat exchanger kpa 70 75 71 Inlet outlet Pipe diameter mm DN150 DN150 DN200 DN200 Water side fouling factor m C KW 0 086 Length mm 8800 9640 9640 11700 Dimension width mm 2280 2280 2280 2280 height mm 2430 2430 2430 2430 Shipping weight kg 7750 8900 9100 11100 Running weight kg 8050 9200 9400 11400 Note 1 Nominal cooling capacities are based on the following conditions Chilled water inlet outlet temp 12 C 7 C Outdoor temp DB WB 35 C 24 C 2 The applicable ambient temperature range of R134a air cooled screw units is 15 43 C Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 6 Operating Range Ambient Temp 15 C T1 Leaving water Temp oC 15 Water flow volume Rating flow volume 20 Max inlet outlet water Temp difference Fouling factor m C kW 0 086 Voltage tolerance Rating Vollage 10 Power supply frequency Rating frequency 2 Envi lt High corrosive environment and high nvironment quali humidity should be avoided The height of water drainage should not be Drainage system higher than the base of the unit on the spot Storage
89. 1 6 3 81 O mo II 0N02 02 2 181 2 91 7 186 TOT eT e108 82 I 9Z Ivo Ico LOG ISI TOT T FT 1001 T8 Bg 0 XL IG XL 8 X Xo rr ev XUZV XT6 XT86 XT 6 X LT X 9 XI 4 lt gt 00171 60574245 714574 5 sy TL TVS TAA 9 144 11 qd I BdS LIIS TC TNT OS 1245 1145 I ZOS TOS i tr xd T Xd0V XZ e9 XT 26 AIX er xisr xt 9 X Z x 6 lt c c E c c c pov HI 2 e e e e e M 2 e e e 2 7 131 MCAC CTSM 201 3 01 PLC series OF SHEETS 6 132 gt c 5 eae lt 5 os cs n c C3 QD LJ gt 1 2 gt dE LJ at LD us co mE c lt E m e 29 Don gt Co C 4 B a Fay C Mer es pes i TE 2 a lt 2 5 E X Lf T CE Ira t lt lt gt ces gt J gt cx Lr
90. 1 y JO 91100 110110 29 091 4 82 1812 ou LLY 6 Jo sordepy 5 1010 W 9 Jd 40 511 0 14 IV 92 peop TOA WIJOQ SU TUA wl l I99npsuvI I 91155914 d 741 Idl Gc 10128110 1055910 0 ZINA TINY 9 0116 91155914 645 245 145 91100 101129104 19404 9 10 9 0 GAAL ez ost end ZAA Ind y 105196 91117190191 d ITV ydo edo TAD 149 193091 110921 91m BUT c ae 193091 110911 ase papynoy dbi z 121146 101129104 205 02 19010 15081 109110 3 cV 1 NOLIdINOS8Q TOINAS NOLLdINOS8Q WALI 108445 WALI 112 MCAC CTSM 201 3 01 PLC series LSBLGW600 C WIRING DIAGRAM 113
91. 1 Hd TA I CI PR Hee Mo Gud L C shd 5 SE34 i tud E Ine Z 7 SHON ae n igi ERA NIC DID SAEI NY N gu CNN UO npolN uonosjoJd a s a TD IN TAY TOMTOATON VI 0 cung O l outs m BX m rr 10410 VO TT VI 406 as UG TT LUG TE x XM d 105 gor VOI 106 yose JOT id e e e e rT e e e e e eT a X GX IX J Phe N vc9e euluue 007 086 2809 Hd N d Air cooled screw chiller technical manual MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual 1038 AY QUAS 20505 atu Up 1011010 i N 0 N D TM 00 bd 9 3 ANZ IXT 09 2X1 11218 N a 3 9 2 11922 1 1 2 N ER 28 08 8 92 Hi ARN XW XL 09 I
92. 21 e e e e oe X e e lt a 11 eXI XI TFH IX i 5 N 060 Jeddoo utu0 09 addo uuug 0 lt 007 086 ZHOS Ad N de LSBLGW1420 sts Air cooled screw chiller technical manual 151 MCAC CTSM 201 3 01 PLC series 152 Air cooled screw chiller technical manual EXG IX lt IXG vGpG euruJe 190002 uug 0 jgueju 10Sse1du02 YOIIMS uonoejog eunjeJeduje eBeuosiq Ede 6156 LISS Scie peeves wr mr 2ullG 0 9215 58 09005 19440 IV 1 DiS gt gt WG gt ul 3u SSUTITH ETAZ A N 19715 SSUIJIM D es ii 19 109 106 107 106 lt edd
93. 22 22 2012 04 29 13 05 22 Finish Oil Restart Min running LWT too LWT too Heating Delay time Low High 0 Master NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO Debug Note 1 Max 8 units can achieve combination control the unconnected unit can access the combination control system at any time as long as the unit is powered on and connected with the system by communication cable 2 The Status displays Run until the unit finish the starting action and enter the process of automatic energy adjustment otherwise displayed shutdown 47 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 5 Control Screen Menu Structure Mode Setting Setting Password Input Touch Screen Tree diagram Alarm History Alarm Information Information Query Multi Status Multi Units Status Status Information 1 Status Information Status Information 2 Module Choose Current Data Display 48 MCAC CTSM 2013 01 Air cooled screw chiller technical manual PLC series 6 Introduction of Major Electric Components Collect all digital quantities and analog quantities on units as well as inputs of quantities and touch screen commands and realize different outputs by judgment of procedures to meet the requirement or normal and safe running of units Programmable Logic Controller PLC Communicate wi
94. 3 5 2013 01 PLC series Air cooled screw chiller technical manual an YQ 9 LSBLGW 01745 1949 110 s 115 61 215 9DON 1 0 1 rn 81 941 101509054 1891112919 AXA oe 21146 Loy VS LI 241 101519073 7291379974 JO 19404 01V 9 o erpouro u 91 19401 1071146 ve 2116 92991 110y p ZS 91 9419 001519014 7891379974 gv 121146 1918 195 V 199125 10101 INH ZE 393294 105521010 ZH THA el yM JO 2110 951 so Surg 30 euy T 19050 1500 1011005 21 J d JO 90 211519009 By o 015 fouodIoug gs Vid ynduy pepuoyxg 67 10328100 084 01 2410 9rpoj 110710 pepusy xg bv ev 82 1y 6 Vd Jo 101d py popuayxg zi 12 1010 N 8 274 JO OPON 4 9 09011940 Sud TMd Ad L 1921 9911 21155914 241 141 Gz 10329100 10591000 9 0114 92185914 245 245 145 yc 10112291014 19404 6 oA V 1019105 6AA ez 9914 en4 end Ind y 105196 21117190091 20 You Tas 11 e PAD 540 240 140 111911 193091g 110911 958 dor 2 0114 11011291014 ss 205 02 IQ
95. 980 99 19 69 Ip gels Ad JUW PVY eA N 3 T T gt U0119UUO2 KTddng zu gem IN 2 t I T 09 VG 06 88 98 78 66 ena rae i i Ave OIV Hex ZA0 N NLZ q D p 060 Vb V9 2405 dl gt dl 91 6 197 204 1 blo 1961 8 Il IT 140 V unc 0 20 0 LSBLGW 121 5 2013 01 PLC series Air cooled screw chiller technical manual 20 45 Emm 1 qat TH rog an ee on MI yo 1 iog V 2 vZ KH __ MW 95 7 m 69 96 7 A A EL _ Ave a osa T 6 iud 0 Magen 19 JET eno IWH 69 7 F lt 19 Z a L 901 0 8 Z XI 8 d ZI ror 7561 6 122 5 2013 01 PLC series
96. BLGW1900 9nL 148 5 2013 01 PLC series Air cooled screw chiller technical manual 149 951 9 421 8 Las Y 4 ru 8 CQ9L T T gt 71 IS WOO OS NOD OIA ON gt ee AO LH9WWVSWLZV d q q I EA N02 CI CA TIT TA NOD OI 0A co a gd t 5 V Z 01 En 04 V V 6 Z 5 iS E nc P E 89 4 4 HK Ila Hg 5 9076 52 gt 127 I 12 le 8922 die Ad 09 21 d E 92 y V 141 5 dl 1 141 Sw 19 X SEE SMS DURS _ 0902
97. C 2 e s gt zs Lu en c c Ee J m m a lt cR 12 oS aa 2 lt a A ET 3 lt ee 5 lt 5 lt E EC 204 dE z Lit 2 E gt E zl 5 SS t 5 e So r gt Em cis 7 D 4 Ul 6 2 9 Air cooled screw chiller technical manual 5 2013 01 PLC series Air cooled screw chiller technical manual qu 12 Qu i gt _ lt co M T 529 L3 L1 xs ES Cr CI C SS S gt r c f 2 C a C cu Cos QJ QJ c Comp Aux Heater Heat puni Heating Lanp Heat punp np Cooling Lo Alarm Ecomomizer E In ject Vo Val ect V D 12 1 9 611 12 1 9 TAAG X 22 19 1446 OX 8 cl cil 26 6 6 lt H O lt N LAG OX
98. C series Air cooled screw chiller technical manual LSBLGW1200 C WIRING DIAGRAM JeuJeju JosseJduio 5 eBseyosig E uorjrsod queu ejsur ITY 6157 TIST dm p Pe Z po 011000 amp Ka Re X M A rat NE M ram he E X QM i ga 54 2 ns E 4 pe pd 1 S SS X N P s N N N NE N gt N N m IN p Med TPP vv N u o s m _ m 2 2 MIN gl oi 7 21 82 7 ec 2 Pu Eam a El cle Br tuf cie ZW IRIS IS N T E V0 100 086 E
99. E A 2222 ON energize OFF de energize Startup 25 loading For easier startup of compressor the loading must be minimized Therefore SV1 is energized to bypass oil to the low pressure side directly The slider does not move and keep the maximum opening in suction end to bypass the refrigerant After the completion of startup the compressor then can increase loading gradually by de energizing the SV1 solenoid valve It is recommended to run compressor at 25 loading for about 30 seconds before starting to increase loading Partial load 50 Operation With the same principle as stated in 25 loading SV2 is energized and others are de energized to achieve 50 loading Partial load 75 Operation 84 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Receiving a feedback from system demanding for lower capacity the SV3 is energized to allow oil to flow back to the low pressure side through the valve channel The piston returns to the outlet of SV3 oil passage and the slide block moves to let part refrigerant flow back to the low pressure side through bypass opening This action would reduce the discharge volume and make the compressor operating at 75 loading Full load 10096 operation After the completion of startup SV1 SV2 and SV3 are de energized and oil flows straight to cylinder and pushes piston forward driving the slider to gradually reduce bypass opening When the opening is closed completely
100. ENSOR N VALVE We M N N TEMPERATURE SENSOR N ANTIFREEZING SWITCH WATER OUTLET N TEMPERATURE SENSOR WATER INLET LOW PRESSURE SWITCH HIGH PRESSURE GAUGE LOW PRESSURE GAUGE ANGLE VALVE TEMPERAT URE SENSOR PRESSURE SENSOR ELECTRONIC EXPANSION VALVE ELECTRONIC EXPANSION VALVE SOLENOID T VAL E Max working pressure lt CONDENSER 22 bar ressure 25 bar 4 NOTE THE NUMBER DF FIN HEAT EXCHANGER S FAN MODULES IS DIFFERENT FOR DIFFERENT AIR CONDITION UNIT TEMPERATURE SENSOR VA BALL ANGLE VALVE VALVE N FILTER BALL VALVE DRIER LN ECONOMIZER ONG 105 57 n 71 IvWeldHl ISNV N y 94 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Appendix 3 capacity table Outlet Model Temp Coolin
101. M 2013 01 Explanation Target Temp Chilled Leaving Water The target temperature of the chiller leaving water 2 Temp Compressor start Chilled Leaving Water One of the compressor starting conditions required to be achieved for the chilled leaving water temperature The compressor can start only at the current chilled leaving water temperature gt gt the setting value in cooling mode or the current chilled leaving water temperature lt the setting value in heating mode Temp Adjustment Period The time interval between two temperature detections Clock Setting Current Time YYIMM DD 2012703713 TUE 11 52 27 Manual input is allowed Clock Setting Clock Setting Click on the numerical box the numeric keyboard will appear input the time click ENT to save and take effect Click ESC to cancel the input value Note Please pay special attention in setting of time and date to the fact that setting of non existent date or time is not allowed and we assume no liability or responsibility for setting of non existent date or time and consequence resulting from this setting lt Adjust Screen SETTING Brightness Contrast Keypad Tone Backlight 10 E Battery capacity 0 User can increase and reduce the brightness and contrast of screen by clicking on in this page User can also open and close the keypad tone of screen by clicking on ON and OFF User can mo
102. PLC series Air cooled screw chiller technical manual 7 aasa 1010 108090 1090 AYA sansa 3340 39189 1 38 38 A3 8 A38 o 1 mim0 bP Sys IC IDINZ s YS TIT L DINI Is lt OLE XS LEXI 09 XT Q 25 Q 25 Q 24 Ow 0876 08 58 70 9 70 0871 08 18 71 921 Xi Xi CIO TIO pS CS 15 9 Xu Xi 09 TIC Tia pS 69 CS 15 OND P c LE Pos 11441 1181 S0 euy sos 11441 2 131q 30 2uy T AH 8V6 8VI coe 61 9 IS JTIWAS TIINAT sedo 001390002 41801 001190002 ddng AXH ul AXA LIT UN84 09 9 LiT 09 9 0672 88 B8 Z 781 _ 0671 88 1 9871 81 _ e5 D du
103. PLC series MCAC CTSM 2013 01 5 LSBLGW880 C unit mm L0 8800 6402 1502 1802 1800 ____ 25 E Control box amp Go Unit bottom Foundation Foundation 2 bolt M14 H in 6 LSBLGW1000 C unit mm 150 2640 ____390 ____ 1790 4 1500 1500 1800 __ 1800 D E E Control box 9 u gt Unit bottom cup Foundation Foundation bolt M14 I K C oO Weight to be supported by spring isolator kg A C D CE p p p OL M j ge ru 18 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 7 LSBLGW1200 C unit mm 150 400 1800 150015001800 1800 Control box a 7 T Foundation Foundation L nl il Weight to be supported by spring isolator kg
104. Punp 110 1X 9 YV5 YV6 YV9 4 2 KAS 3 25 TMZDOCKN A2 NM 4 12D A 12 pw 19 4 12 D LSBLGW720 C 124 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 13 51 3 COM COM 16 2 SE V2 COM 4 i Vie Il NC VIO ATTMZAMMOHT 73 t SRPA eH COM Suction Pressure Discharge Pressure CES O E 9 54 1 70 o A Nr 1X 71 lt gt ae n 5 1 67 AX 68 1X 69 QMII G 2 a 2 Re BE m CY Qo D LO eo t oo N st LO eo LO 0 100 100 LO LOO Oo Wo Wo gt x pd p lt gt gt lt gt x gt gt lt T T T T T T T T T T T 8 d 2 Leaving Water em Entering Water ep Standby Ambient Terp 4 1 _2 AJ e
105. T 61 LI 1 01 6l LII l wy OH 4 8l 9I eI ONO 871 9 1 UX 1 9 OZ 2 81 Z 91 Z PEI 78710851 loz lez lloz III To EP XQ6 Xa yo XL 19 1 8 27 XN EP XL GP XT N 4 14 i N X eed v lt gt OOL IN C Tda Ta 0 SOS 70045 IdS d VS 9 TYS 98 I44 WAT CdS ITIS 69671045 114571 ZOS 105 LLU gt lt ro 0 29 12 Ter xiir xlor xie XI 9 X Z X HI c E M c c c c c c c V n H 1 x Z e e e e e e e e e e d E eb HV Y E PENES lt EL lt sess i n lt 5 ms LE st _ TRE x lI gt EI ES emi c 1 axe 542 E Maren a5 T eal pach c lt 5 E c zx m tus _ 8 2 29 6 a c em e NS c dur lt
106. UIOJSURI 109220 _3 ZVL TVL 1 NOLLdINOSSQ WALI TOANAS WALI NOLLdINOSSQ WALI TOANAS WALI N 134 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual LSBLGW1000 C WIRING DIAGRAM Jeujeyu Josseuduio2 YMS uonoejoJd ebyeyosiq m E a TAT 1000 C LSBLGW uorirsod AIV 618721161 META SS oe ae o exes Teor1300 g ONE Sgt ieee s A e a c uu SN N uM JA DES M e N ow N uu f Ne IN Z N Pa N N 4 DN W we DNE N PA N Eo W N x
107. V e T u38uo sSurirM ra 2 9215 SSUIJIA T 5 GW SI IIS N T 0 409 407 496 lt Teutu E dunes 007 086 910N od 2109 d gi Z EE I oh ERA IQ JC ERG GE AUC T UU J V8 9 6 007 086 2809 d i OS i N ta Whit T ug L ufue N N N N e DE lt i y T 621 AA 190002 Hd 9M 9A 91 Hd SW SA en Hd VM FQ dd EM en Hd ZM Hd TA In pw C E chyd E eu G 5 L 6 b chad B r chad 5 eel Z PION TSWTSATSN m IO WIP SIEHT 2 J en RN SEE TT e npojy 1 BL 501 14 VT 0 0 i 1 1 1 WBS ol SIOMOTG II 10010 KAKA VI 402 TE EE II Te UG TG NN NOT 405 dr Co V9I HOE i 51 4812 1244 T cH 24 dr Fr l d o GX GX IX IX j N Jeddoo 02 007 08 7HOS Hd N d 2 6 2 9 E 7 99 5 2013 01 PLC series 100
108. X X pue suomeoiunuJuJoo ninu Jo uonoeuuoo Spuels Z X 6 X leu6is spuels 9 X X ZZ X VX Jeulojsn Jeuje60j 1nd Z ON pue ON JO au 2 JUO BY YIM 08 1 esind AX3 ES 9 X1 S8 X 5 E es fouepunpewopXL SEXL vEXi SEXL 20 m saJmxy uj eui um MI 0 Kouepunpeupt XL XL vEXL EXL 2 006 E JepJo s nd AX3 leuBis eu si jeuluue d lt lt E 25 LA 5 PE E Ee nd QJ VS 22 6 gt e m Su 0 amp XI L 6Z XI 011 E 0c 8 lt e e e e e e a 401 2 qN qN C2 Jod ZTM Ji XT 19 X1 TE XT Z XI V x Z LWT OW PAM EWN AM ZAR E 1 u NN ver Oe eze 1618016 Jet jer J je ibd 36 96 v6 76 CIO 0 o 9 D wo 0 Protus od m au 10 60 ENO 90 d N 1 11S
109. X3 eubls 6ojeue oqrzZ 0V0ZZ 9u Aq si puluu X 92 6 i i Ei ped P lt z VS gc IT 06 1 6Z XI 211 lt e e e e e e 421 5 96 3 qN 1 i Li Oud ASAA LXT9 XI PiX X EAA GMA LAA evo S hace ice S XIJe XI TE XIL EXT ere WB 62 12 6 JS NOME 86 96 V6 26 gu 80 qo wo WOJ 19145 04 Id 10 210 90 e 100 N T 16 0 06 4 ISI lN IV 9 6 ON eT 61 LI t l CT OT 8 O wo I H 02 9 ni V XISP XI eds 116 GG 001 X ST OL YI EL 06 XIV XIB8 XL d a eas 1245 145 ZOS 106 Pe M pex expexyexqx ex pex lt LU Lu 81 9 AN M 919 6 41 9 e 0 7 e Sa lt m LE e e lt t z t Ls c e S555 gt Rx 2 ca L3 lt c icm Ex
110. ain pipeline and their installation places shall be far away from the elbows The pressure gauge installed shall be vertical to the water pipe and the installation of the thermometer shall ensure that its temperature probe can be inserted into the water pipe directly 13 Each low point shall be fitted with a drain connection so as to drain the remaining water in the system Before operating the unit connect the stop valves to the drain pipeline respectively near the water inlet connection and drain connection The by pass pipeline shall be provided between the water inlet pipe and drain pipe of the evaporator convenient for cleaning and maintenance Use of flexible connections can reduce vibration transfer 14 The chilled water pipeline and expansion tank shall be subjected to insulation treatment and the maintenance and operation part shall be reserved on the valve connections 15 After the air tightness test is carried out and the insulation layer is applied on the pipeline so as to avoid heat transfer and surface condensation the insulation layer shall be covered by moisture proof seal 16 Any water piping to the unit must be protected to prevent freezing There are reserved terminals for the auxiliary electrical heater Logic in PLC will transmit ON OFF signal by checking the leaving evaporator water temperature Note The unit only supply ON OFF signal but not the 220V power If a separate disconnect is 24 Air cooled screw ch
111. al Elements Parameters Settings Inspection 1 Inspect whether the ports of linked controlled unit are properly connected The connection way for linked controlled unit is as below unit 2 unit Multi link connection S 9 101112 9 101112 8 unit The user wiring terminals 9 10 11 12 of each unit are communication line terminals for multi link These terminals can also be used if the upper computer is selected Attention either upper computer or multi link function can be chosen The use of both requires application for customization Use 0 5mm 3 core shield wires to connect the unit Double head unit is considered as one unit Maximum 8 sets can be connected The method of connecting upper computer via Ethernet port The connection via Ethernet instead of RS485 serial connection required customization The connection way is as below 5 Ethernet port es only if customized
112. ans divided into 5 groups Opening condition as follow Dis pres bar 1 P10 Settable Open 1 2 3 4 5 groups fans P Settable m 1 PB Settable Open 1 2 3 4 groups fans Settable La Open 1 P6 Settable 2 3 groups fans PS Settable S 4 P4 Settable Open 1 2 groups fans P3 P2 Settable Settable LS Cooling mode fan conto 4 Oil heater control Logic In unit shutdown period oil heater is energized to keep normal oil temperature When unit starts it is turned off Oil heating time limits gt When cooling water inlet temperature gt 35 C real time value oil heating time for first startup is 0 5h If power down happens during operation and downtime is less than 8hrs no heating time delay is needed when unit restarts If it exceeds 8hrs 0 5h heating time is need gt When cooling water inlet temperature gt 30 C real time value oil heating time for first startup is 1h If power down happens during operation and downtime is less than 5hrs no heating time delay is needed when unit restarts If it exceeds 5hrs 1h heating time is need gt When cooling water inlet temperature gt 25 C real time value oil heating time for first startup is 2hrs If power down happens during operation and downtime is less than 3hrs no heating time delay is needed when unit restarts If it exceeds 3hrs 0 5h heating time is need If it exceeds 5hrs 2hrs
113. anual 7 1010 108090 1090 AYA sansa 3340 Dro 39189 0 01387 0 387 A387 n g it 70 A 2 1 mmm mm 11079087 060 Q 25 25 Q 24 Ow 0870 0870827 9 70 0871 08 18 I 9 71 ps es CS IS QND ND Tid ps es S IS QND ana Ny Hr ameh jndu 1181 30 uy POPP IS jndu I0lI3I 30 UV Ad 8V6 8 5070 6671 69 19 1136 sedo 001390002 41801 001190002 ddng AXH ul AXA t I 7 1 09 9 t I 09 9 0672 8872 9872 781 _ 0671 8871 98178 1 _ Sa D CD 2 N LS 8 X25L XCBL XQLL XC p px LXIBL XIAAXI m W amp v us P k i MR S 181 E LL SS 4060 9 5 V9 1060 N ET V3 7HOS dl 208 dI IVT Vg 0 Tha 161 xu BEI IL PI MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual 00
114. apuarxg 12 1010 CP N 8 4 JO TMPON 4 IV 92 D90 1940 1911 QN TMd i IQOMPSUBI 91155210 SE 241 Gz 10108110 105591000 TINY 9 YO EMG 9155914 E 645 245 145 0017291014 19404 TUI g 9412 DIOUO OS ez os end end 104 y 105196 9111019 9 irons 2 PAO 649 ZJO 1400 FOYE 110911 T iz 193991 110211 ase popTnoj DI 2 27146 10112201014 cos dr I00IOJSUPI 109120 ZVL TYL I NOLLdINOSUQ WALI 09 WALI NOIldIMOS HG WALI TONAS WALI Ma L 105 MCAC CTSM 201 3 01 PLC series LSBLGW500 C WIRING DIAGRAM 106 UOT ISOd quou ejsur ATY a E
115. ary Groutin ing Anti vibration Bush E Steel Plate Concrete 4 T If the unit will be installed on the top of the building which vibration level should be restricted It is recommended to use spring isolators as absorber please refer to following diagram Unit Bottom Spring Shock Absorbe N Foundation 3 Installation Spaces 1 Reserve the spaces required for unit installation operation and maintenance 2 The installation place of the unit shall be free from the effects of fire inflammables corrosive gas or waste gas as much as possible the ventilation space shall be reserved there proper measures shall be taken to reduce noise and vibration whenever possible 3 When the units are installed on the horizontal plane without obstacles the longitudinal distance between the units shall be kept above 1m the transverse distance between the units shall be kept above 1 8 m and such distances shall be as large as possible if there are obstacles at both sides of the unit the distance between the unit and obstacles shall be kept above 1 8 m if there are obstacles above the unit the distance between the unit and obstacles shall be kept above 2 5 m 4 The removable post for compressor service access must not be blocked at eit
116. c t Lo cres 09 1079 VG 06 88 08 78 66 tm MG A an PR Agr P P gp yp A0gg PN O C 91060 N I V9 2805 dl 3C 808 di i81 zn vao dnd 181 8 dI 145 IT 1 1 V mug 0 eum m LSBLGW 107 MCAC CTSM 201 3 01 PLC series 108 BE SET MN UM 11 TS imma n U 1208 DJ MJ WI iog E A im C Kus C eux C Em my t L Il M gt N 1 1 MU i ns NOTI T ii 10 53 es 98 7 2 5 TEXT TL 19 m eni INH CIVI 9 m oid oC Ja I9 2 4 yds 901 2 8 PEZ XT 8 i 111 TET TC as Air cooled screw chiller technical manual MCAC CTSM 201 3 01 PLC series 109 OVAOOC 101140 10 spuejs zz
117. capacities of the breaking isolation switches recommended are as follows the supply mains Nominal Domestic Conductor Insulator section model material material area electric J BVR185 cable Connected to the unit must be BVR300 Cu PVC 300 600 copper core 27 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Recommended Recommended Cable breaker LSBLGW380 C BVR120 4 BVR 0 1 330A LSBLGW500 C BVR240 4 BVR1201 20 1 50A s electric cable must be LSBLGW600 C 500A copper core If units are LSBLGW720 C 2 BVR185 4 BVR120 1 630A nigh temperature conditions the breaker BVR185 4 BVR120 1 needs larger capacity LSBLGW880 C BVR240 44BVR1 204 830A 000 2 BVR240 4 BVR120 1 1 BVR240 4 BVR120 1 LSBLGW1200 C BVR300 4 4BVR1 50 1 1000A LSBLGW1420 C 420 2 BVR400 4 BVR240 1 2 BVR400 4 BVR240 1 1 OA 4 5 6 7 8 9 10 11 Attention refrigerant selection the previous software settings replaced by the current hardware settings to avoid the possibility of improper operation of the software leading to wrongly selected refrigerant and damage to the unit Short circuit 1X 35 1X 36 on the wiring terminal 1X in the cabinet and set R22 refrigerant for the unit or R134a is used for the unit In order to avoid wrong control in field conn
118. d improve the utilization of the evaporator heat exchange surface Superheat control Economizer system with electronic expansion device for increases the cooling capacity Automatic scheduling of the Chiller s compressors allows the chiller to match the fluctuating cooling load and conserve energy with each unit running at its peak efficiency 7596 5096 25 Discharge Gas Cil Pressure Lower operating noise B The twin screw compressor adopts the strong points of gapless loss high efficiency cubage low noise few easy workout parts Double wall structure not only compensates the pressure but also significantly reduces the noise Cast iron structure of the compressor casing and oil separator can reduce the noise significantly Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 B Low noise fans made of a composite material are now even quieter and do not generate intrusive low frequency noise Rigid fan mounting avoids start up noise Multiple direct drive dynamically balanced propeller fans operate at low tip speeds for maximum efficiency and minimum noise and vibration A heavy gauge vinyl coated fan guard protects each fan Outstanding reliability Full factory testing of all the units ensures a trouble free start up Extensive test makes certain that each safety and operating control is properly adjusted and operates correctly The unit has passed full factory test before being delivered t
119. dify the time of backlight by clicking on the numeric box following the time of backlight Electric control capacity displays the battery capacity of PLC whose battery is used for supplying power for PLC interior time in the case of failure to engage PLC Reset of PLC interior event will be resulted 40 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 from too long power fail time of PLC module without battery lt Automatic On Off If the automatic on off function is needed please switch to TIMED mode in control mode as shown in Picture 2 firstly then enter user parameters setting page click on button to enter the following page and set the starting times and shutdown times 2612 03 13 TUE 11 44 18 Manual Input Is allowed Automatic On Off Setting Any time every day in a week can be selected and the units will be started or stopped at the time points When a period of continuous running time for example from 10 00 Tuesday to 16 00 Thursday is necessary you can set the time 10 00 in starting time and 0 00 in shutdown time on Tuesday and click EB to switch to the time 0 00 in starting time and 16 00 in shutdown to switch to valld of the others time buttons time on Thursday and click on Pay attention to that starting time must be before the shutdown time Since system interior time is used for timing start stop pl
120. e adjustment NO whether load is YES Clear failure NO Step D until no unit Whether there is any without failure protection unit without failure protection YES Whether there is any modular unit with compressor oil heating time and switch on off interval meeting Start condition Select system A of the shortest compressor running time according to length of compressor running time 77 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Power on 25 solenoid valve system A compressor Star start of system A compressor intermittent conduction of oil supply solenoid valve Judge the number of adjustable 105 105 synchronized with operating fan as compressor stop compressor intermittent required according to conduction of oil supply solenoid valve the discharge pressure adjustable stopped for Bitzer compressor switch on fan based on discharge pressure Star delta switch system A compressor Power on 50 solenoid valve power off 2596 solenoid valve system A compressor Energy adjustment execution Start end system A Execute step B at the interval of 120 s for other modular units 2 Start after cooling energy adjustment Stop When total entering water temperature is detected to be within the start reset temperature range after energy adjustment Stop of all modules the first unit module meeting the Start condition will be executed from step B and other modular units will be executed from s
121. e unit from the requirements in the manual shall be pointed out to the part responsible for installation and the after sale personnel or professionals in the factory will determine whether change is necessary 3 Short connection is forbidden when all protection functions of the unit are normal Ensure all protection functions are available and reliable Various protection switches in the unit are for safety of the unit or user and are not permitted to be short connected in principle If short connection is required for commissioning the operation shall be done by the after sale personnel or professionals in the factory on site After the commissioning connect the protection switches to the system before starting up the unit for long time running 4 Open the water pump and wait until the water flow is stable before starting up the master compressor For shutdown the water pump must be closed in a delayed time It is not allowed to forcibly close the water pump when the master compressor is still running If the water pump fails and the flow switch does not jump the unit must be emergently shut down 5 The unit must be disconnected from the power supply during inspection or replacement of the lines of the unit If 15 required to tighten the line bank screw or replacing the wire and element in the electrical cabinet during commissioning and maintenance it shall be down when the power supply is disconnected Similar operations by the user in late
122. ease draw attention to check whether the time of the system is correct when you are using this function gt Comm Setting Click on Set the number of multi units BACK Note 1 Comp ON 2 Comp ON only appear in dual compressors units Mult Units When the unit need to be multiple controlled please contact the after sale service 41 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 engineers to do settings of the unit After setting well press the Single unit button it will turn to then the number of multi units should be set according to the practical situation 2 1 comp on 2 on No 1 or No 2 compressor can be selected to work or not when the compressor meet the conditions it will shut down refer to the stop progress if user want to stop one compressor Read serial pot information Click on to read serial port information when the unit need to be multiple controlled Read serial port informatio Baud rate Address Data bit Stop bit Check bit zero Interface RS232 gt Status Click on in main page to check the current unit status information Comp Running H Pump Running Remaining Oil Heating Time 0 0 H Restart Delaying Min Running Time Elapsed Water Temp Allow Compressor Start Alarm Load State Status Information The upper left in the page display the refrigerant type the upper right dis
123. ection the liquid control circuit 24 V shall not be in the same conduit with the lead wire of the voltage higher than 24 V The control circuits of various units are all 220 V and for the wiring ways of the control circuits please refer to the wiring diagrams supplied along with the units A unit consists of master compressor and slave compressor communicating via shield wire protected by sleeve and separated from supply line The control output cable to be connected on site shall be AC250V 1mm2 and 0 75 2 shield wire 24 V shall be used for control signal line Attentions Read the electrical wiring principle diagram and connect the wires strictly according to the wiring terminal diagram Three core shield cable RVVP3x0 75mm2 shall be used for the connection of the temperature sensor Common two core cable RVV2x0 75mm2 shall be used for the connection of flow switch to connect to the NO contact of the switch i e the opening point when waterless Two buttons can be connected to the external of remote start and stop If the customer desires the linked control of the water pump connect the water pump as shown in the diagram where an intermediate relay is required If the function of linked control of water pump is not needed ensure that the water pump is started before starting the machine CAUTION An independent power supply box needs to be equipped with the power supply of the water pump 28 Air cooled screw chiller technical
124. en the angle valve of liquid system and compressor liquid air stop valve to ensure the loop of the entire system is unobstructed i Add proper amount of refrigerant generally 5 10k 3 Before replacing dry filter core filter directly close the angle valves at both ends to discharge the residual refrigerant in the dry filter After the replacement fix the end cover tight extract 1 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 vacuum and then add 2 3kg refrigerant If only to clean the dry filter but not to replace it before removal of the filter ensure that the refrigerant the dry filter is completely discharged and the dry filter has remained not in use for a time to ensure the temperature of the dry filter core is close to the ambient temperature so that the removed dry filter core with low temperature would not cause the moisture in the air to immediately reach to the dew point to condense and absorb water Protective measures M shall be taken to the removed filter to prevent it vat from directly contacting with the air If the dry filter core is dirt or has absorbed too much moisture it must be replaced with a dry one During the operation inspect whether the dry filter is blocked and whether the temperatures at the dry filter inlet and outlet are close in normal conditions If there is obvious temperature difference above 5 between the front and end of the filter or eve
125. epending on particular situations 5 Loosen screws of fixing base of the evaporator remove the shell and tube evaporator and replace the heat exchanger with one of the same model and connect the pipeline through welding 73 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 6 Pay attention to nitrogen filled protection during welding 7 Keep the pressure of the system extract vacuum and refill refrigerant 4 Replacement of Condenser 1 Disconnect the power supply of the unit and recycle refrigerant 2 Remove the metal plate connected to the condenser and remove the guard of the condenser 3 Remove the parts of collector tube and gas distributing subassemblies connected to the condenser through welding Pay attention to the direction of the flame to prevent contact with condenser fin and metal plate of the unit 4 Clean the system depending on particular situations 5 Loosen the fixing bolts connecting the condenser and metal plate of the unit remove and replace the condenser and connecting corresponding pipelines through welding 6 Pay attention to nitrogen filled protection during welding 7 Keep the pressure of the system extract vacuum and refill refrigerant 5 Replacement of Thermostatic Expansion Valve and Strainer 1 Inspect the refrigerant system and various lines to figure out the cause of damage of the expansion valve or strainer 2 If the expansion valve or strainer
126. g SV ENG us E qIT 9 2192 g 2 2 WOO WOO SIL VII STI ll TTI OILI 61 8 W09 WO9 ZI 91 SI VI SI GI II OI 95214 96 106 Z Sc Z Do C C Z Z M MT V E 18 019 60 09 XGLV XEN TAZ 89 g 8D d 69 XI m aaz bas Aris 5 951 c O 2 9 0 S 9 XC 28 XG X28V XZ 49 XI dx 3 MCAC CTSM 201 3 01 PLC series Air cooled screw chiller technical manual a L 211 9497 10 115 61 2116 9001 s 81 uorsuedxg 7891179917 96 01140 J i VS LI uorsuedxg 80121291 JO 19404 Keay 93210901911 91 1940 YILTA GV ve 21146 92991g T1UY cos GT J NPOW 2419 101509014 7291139314 8V 2116 4014 191 1 105 099106 010 Ze 19109 1088910109 EE THA I yu JO 910 8913019 90100 T Ig 19010 1508 00118108 IL 21 Qd Jo 21100 9101902 d 0 001 0098291 85 yn 10910 1000 67 1012100 2 Sn TM 01 314 JO aapoy 11011 pepusyx
127. g eV 8c X LI 6 y Jo 10108 popuorxg a n 10104 5 ee N 9 JH JO 9 0p0 140 92 901194 8194 gx L 1901 9081 9105924 TN oz 10 99 U0 1055910007 IU 9 21145 9155914 645 245 145 5 9 MPO 0017997024 19404 g 9417 DI0U910 GAA ez ostly end end TAA y 108196 911819009 E 22 ITY 5 PAO 640 ZAO 139 1939918 710911 o 19091 110911 95 pop noy DI 2 2114 00112910214 cue cs dg IQUIO SUPI 109110 HE ZVL I 01141 2 WALI 8 WALI NOLIdINOSSQ WALI 10405 WALI 150 MCAC CTSM 201 3 01 PLC series LSBLGW1420 C WIRING DIAGRAM MOTA p llo4qyuoo 921J399 H 121804 30 23501 ALY i N m N al N Bia MEA oi S Cox sS g Ed 71 Josso1duJ02 efueuosiq 21151 Cort DS ee FF N E NIN S IS N 1 067 1007 08 V XL
128. g Power Cooling Power Capacity Capacity Ambient temperature 30 Cooling Power Capacity Cooling Power Capacity Cooling Power Capacity kw kw kw kw kw 76 94s 1030 3966 1097 3769 1173 3625 1224 3375 1326 3220 1388 7 459 960 4313 1045 4126 113 3920 mo 975 4483 1061 4286 1129 4070 1206 3907 1258 3638 1361 3471 1424 L9 990 4653 tore 4447 4221 1223 4048 125 3769 1318 3597 1442 380 ERKE NL CUN Dr IE AS WE IEE OJETE TS e 16 ens una sez Da ates 13 5617 1049 533 3 508 8 E 482 3 461 3 HAMA 429 5 1449 410 0 He l 5 527 4 120 7 504 5 131 3 489 1 139 4 470 0 148 9 461 8 154 7 431 7 167 6 413 1 175 3 6 5522 122 1 5278 1328 5105 1412 4896 1507 4784 1568 4479 1698 4287 1778 9 263 1260 5978 1373 5758 1465 5506 1567 5343 1638 5001 1772 4789 1853 1223 e212 1388 3976 ST9 1587 5505 1658 5175 179 6 4932 15 rt eect wal a ON ONE T 0 1313 6912 M33 650 536 G9 1647 1732 5698 1870 5459 1954 95 Air c
129. g transfer or filling of refrigerant 7 Itis better to use filling machine to fill the refrigerant If no filling machine is available refrigerant tank can be used to fill refrigerant directly However the pressure in the refrigerant tank is too limited to fill the refrigerant required completely to the system It is suggested to heat the refrigerant tank in 40 50 water heating temperature shall not be too high When there is 60 of the rated amount of refrigerant in the system start up the machine for filling Fill refrigerant at the gas side of the system and control the flow of the refrigerant Gas of refrigerant is better If it is liquid it is better to be filled before the evaporator If after the evaporator it shall be filled slowly and in small flow 2 6 Training User Operator The commissioning process includes training user operators in the following aspects 1 Stress the safety in shutdown and operation processes 2 Require the users to carefully read the operation manual of the unit 75 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Explain to the users that operation of the unit shall be carried out strictly as per the steps and methods specified in the operation manual If anyone has any problems about descriptions in the manual he shall enquire after sale personnel or professionals in the factory and carry out the operation only when he understands it Any deviation in the installation of th
130. he heating NO Expansion valve cannot open broken capillary pipe or leakage No Solenoid valve is not open No Fin heat exchanger for cooling is too dirty or aged or too heavy encrustation in tube shell fo One way valve is blocked NO Water pipeline is not properly When it is closed at the end the water flow is smaller No Leakage of refrigerant No Yes Yes Yes Yes Yes Yes Yes Yes Yes MCAC CTSM 2013 01 Adjust operation mode Open the suction ston valve Inspect the blower or open the water numn Replace the expansion valve Inspect and maintain solenoid valve coil valve body and wiring Clean heat exchanger Replace the one way valve Adjust the water pipeline system nspect and repair the leakag point and then add refrigerant 62 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Yes False alarm of controller Inspect whether it is frequent is replace PCB Inform the customer service center 3 Discharge Temperature Protection Overheat discharge temperature Yes Yes Inspect and repair the leakage point and then add refrigerant Leakage of refrigerant Expansion valve can not ope
131. heating time is need gt When cooling water inlet temperature gt 20 C real time value oil heating time for first startup 86 Air cooled screw chiller technical manual PLC series MCAC CTSM 201 3 01 is 4hrs If power down happens during operation and downtime is less than 1h no heating time delay is needed when unit restarts If it exceeds 1h 2hrs heating time is need If it exceeds 5hrs 3hrs heating time is need If it exceeds 8hrs 4hrs heating time is need gt When cooling water inlet temperature lt 20 real time value oil heating time for first startup is Shrs If power down happens during operation and downtime is less than 1h no heating time delay is needed when unit restarts If it exceeds 1h 3hrs heating time is need If it exceeds 5hrs ohrs heating time is need If it exceeds 8hrs 8hrs heating time is need 5 operation amp wiring User interface consists of five components of the LED display operating status the table below LED Light Extinguish Flicker Can be Not Communication NET connected to connected failure the network OPEN Open the Disable the drive valve valve Activate the alarm The drive 15 not connected Drive power to power supply Display and keypad Graphical display with two kinds of system variables the drive control of the state protection function is activated and the alarm and relay output status ta
132. her side of the unit 20 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 5 There must be no obstruction under the fans 4 Installation of Water Pipeline System Due to the variety of piping practices it is advisable to follow the recommendations of local authorities The installation and insulation of the water pipelines of the air conditioning system shall be designed and guided by design professionals and confirm to the corresponding provisions of the HVAC installation specifications Basically the piping should be designed with a minimum number of bends and changes in elevation to keep system cost down and performance up Single unit 21 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Stop valve Check valve 22 2 Y ehape filter ayy lt uto discnarge E Stop valve Cycle pump 9 SN Bypass P air valve dU eq lt Pressure gauge 2 F Connect the terminals e 2 AR Thermometer Water flow switch Drain water valve flow
133. illed water for the convenience of heat transfer Thermostatic insulation and enclosing measures shall be taken for the temperature sensing device Inspect whether there is temperature deviation for the entering and leaving water temperature 57 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 sensor caused by insufficient heat transfer oil in the thermostatic pipe pipe of entering and leaving water temperature sensor for more accurate collected temperature There shall be sufficient heat 1 transfer oil in the thermostatic ff b 3 i Armored dip type temperature sensor For later armored dip type temperature sensor no lubricating oil is required for heat transfer 1 4 Complete Machine Performance Parameters Inspection 1 Parameters Inspection before Start up Before start up of the unit the following performance parameters need to be inspected 1 High low voltage value of the system In the case of the unit shut down and waterless in a long time the liquid and gas of the system shall be equivalent and close to the saturation pressure corresponding to the current ambient temperature The correlation of saturation temperatures and pressures the pressures in the list are gage pressures among which the atmospheric pressure is 0 1MPa of R134a refrigerant is shown in appendix 1 In shutdown status the high and low voltages shall be the same and equal to the saturation pressure corresponding
134. iller technical manual PLC series MCAC CTSM 2013 01 used for the 220V supply to the cooler heating cable it should be clearly marked so that it is not accidentally shut off during cold seasons 17 If the unit is used as a replacement chiller on a previously existing piping system the system should be thoroughly flushed prior to unit installation and then regular chilled water analysis and chemical water treatment is recommended immediately at equipment start up 18 Power on the chilled water pump and inspect its rotation direction The correct rotation direction shall be clockwise if not re inspect the wiring of the pump 19 Start the chilled water pump to circulate water flow Inspect the water pipelines for water leakage and dripping 20 Commission the chilled water pump Observe whether the water pressure is stable Observe the pressure gauges at the pump inlet and outlet and the readings of the pressure gauges and the pressure difference between the inlet and outlet change slightly when the water pressure is stable Observe whether the operating current of the pump is within the range of rated operating current inspect whether the resistance of the system is too large if the difference between the operating current and rated value is too big eliminate the system failures until the actual operating current is satisfied 21 Inspect whether the water replenishing device for the expansion tank is smooth and the auto discharge air valve
135. in the water system enables auto discharge If the discharge air valve is a manual type open the discharge valve of the chilled water pipeline to discharge all air in the pipeline 22 Adjust the flow and inspect whether the water pressure drop of the evaporator meets the requirement of the unit s normal operation The pressure at the chilled water inlet and outlet of the unit shall be kept at least 0 2MPa 23 The total water quantity in the system should be sufficient to prevent frequent on off cycling A reasonable minimum quantity would allow for a complete water system turnover in not less than 15 minutes 25 Air cooled screw chiller technical manual III Electrical Data 1 Field Wiring PLC series MCAC CTSM 2013 01 WARNING In order to prevent any accident of injury and death during the site wiring the power supply shall be cut off before the line is connected to the unit Wiring must comply with all applicable codes and ordinances Warranty is voided if wiring is not in accordance with specifications An open fuse indicates a short ground or overload Before replacing a fuse or restarting a compressor or fan motor the trouble must be found and corrected 1 2 Copper wire is required for all supply lines in field connection to avoid corrosion and overheat at the connection of terminals The lines and control cables shall be separately paved and equipped with protective pipes to avoid intervention
136. is to be replaced disconnect the power supply of the unit and recycle the refrigerant 3 Wrap the expansion valve body strainer with wet cloth remove the inlet and outlet tubes of the expansion valve through welding and then remove the expansion valve or strainer 4 Replace the thermostatic expansion valve or strainer with the one of the same model wrap the thermostatic expansion valve body or strainer with wet cloth again and connect the inlet and outlet tubes of the expansion valve through welding 5 Pay attention to nitrogen filled protection during welding Besides pay attention that no water flows into the pipeline 6 Keep the pressure of the system extract vacuum and refill refrigerant 2 5 Precautions for Maintenance and Service 1 When the angel valve cores at both ends of the dry filter are turned outward left two main pipelines 2 and 3 are connected and the needle valve connector 1 is closed when the valve cores are turned inward right the needle valve connector 1 and the main pipeline 2 parallel to the angle valve connector are connected and the main pipeline 3 vertical to the needle valve connector is closed when the valve cores stop at the middle part the 74 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 angle valve connector 1 and two main pipelines 2 and 3 are interconnected Ball Valve When the ball valve core is turned outward the two main pipelines are in
137. it will execute shutdown action automatically after all of the requirements have been satisfied Confirm Shutdown The action of 4 functional keys in main page will be detailed in subsequent sections gt Setting SETTING Click on in main page to enter the password page Click on the dialog box of password input an input keyboard will be popped up in the interface input user manage password 40828 then click on Enter in numeric keyboard the dialog box disappears click on ENTER to enter User Parameter Setting Page 38 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 2012703713 TUE 11 26 55 Password cse heck dei User Parameter Setting Page Password error please enter it again Password Error Page Password Error Page will be popped up when the password is wrong click on button to return Password Input Interface input the password again to enter the next page SETTING Temp Control Range 0 0 Temp Adjustment Period 0 5 Cooling Setting 0 0 me Clock Setting Comm Setting Screen Setting Automatic ON OFF Note Q in the upper left indicates the upper limit of the setting parameter Min the upper right indicates the lower limit 2 Automatic On Off Only displaying under Timed mode 39 Air cooled screw chiller technical manual PLC series MCAC CTS
138. itch when the difference between oil pressure and discharge pressure of compressor is higher than the setting value during running of compressor The indicator of oil differential pressure switch in input interface will be out Do not switch on the units in accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after switch resetting To be detected after start of master report the contactor failure in case of incorrect pull in of contactor Do not switch on the units in accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after switch resetting Report compressor overload protection when the current value of unit compressor is greater than the setting value and energy accumulated to result in thermorelay trip Stop the module immediately in the failure stop procedure and save the content of failure Do not switch on the units accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after failure is eliminated 68 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Fans overload Fans overload Fans overload Report fans motor overload protection when the current value of unit fans is greater than the setting value and energy accumulated to result in thermorelay trip Stop the compressors and fan
139. ition anti phase phase lack overvoltage undervoltage or imbalance of three phase voltage of power input terminal of phase sequence protector b Results of action execution power module failure lamp is ON touch screen displays power failure and fails to be started c Processing mode see the power module exchange any two unit incoming lines if it is anti phase Please do not start until power gets right with failure removed in case of other failures Notes this module has the important action of compressor protection The imbalance rate of voltage of current is usually specified by compressor manufacturers and burn down due to overheating will be resulted from long time operation under abnormal working voltage 2 Miniature Circuit Breaker a Protective condition current passing the miniature circuit breaker exceeds its numerical 31 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 protection value b Results of action execution power fail of corresponding circuit failure of start circuit breaker switch positioned in the OFF terminal C Processing mode inspect there is burn down of component s or short circuit between circuits If any please replace the component s or modify wiring You may attempt to set the circuit breaker to ON terminal if it immediately trips once again it indicates that there is always a condition of short circuit in this case inspect the line and components until normal pu
140. l be provided with a 25 mesh screen This will aid in preventing foreign material from entering and decreasing the performance of the evaporator 23 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 1 T J i i Ba Pi 4 af i m e r a n L Install the filter at the evaporator inlet 6 A strainer should be placed for enough upstream to prevent cavitation at the pump inlet consult pump manufacturer for recommendations The use of a strainer will prolong pump life and help maintain high system performance levels 7 flushing and insulation of the water pipelines shall be carried out before it is connected with the unit so as to prevent dirt from damaging the unit 8 The design water pressure of the water chamber is 1 0Mpa Use of the water chamber shall be not exceeding this pressure in order to avoid damaging the evaporator 9 The expansion tank shall be installed 1 1 5 higher than the system and its capacity accounts about 1 10 of the water amount in the whole system 10 The drain connection is arranged on the evaporator cylinder The drain outlet has been equipped with a 1 2 plug 11 The auto discharge air valve is arranged between the high point of the pipeline and the expansion tank 12 The thermometer pressure gauge are arranged the straight pipe sections of the water inlet pipeline and dr
141. l to and the mechanical antifreeze switch is switched off report freeze protection immediately stop this unit in the failure stop procedure and save the content of failure Save the content of failure Do not switch on the unit modular unit to be detected during both stop and running in accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after failure is eliminated High pressure High pressure High pressure To be detected during both stop and running alarm switch Switch the high pressure switch when discharge pressure of the system is higher than 20Bar report high pressure protection stop the module immediately in the failure stop procedure and save the content of failure Reset will not be allowed until system pressure is lower than the setting value after protection occurs Do not switch on the units in accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after failure is eliminated 67 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Low pressure alarm Low pressure Compressor Compressor internal protection internal protection Oil level protection Oil level protection Oil differential Oil differential pressure protection pressure protection Contactor failure Contactor failure Compressor Compressor overload overload Low p
142. ll in is available Notes Before inspection please switch on the breaker once without electricity The existence of heavy current shock may result the damage of the miniature circuit breaker At this moment switch on without electricity is also impossible When switch on is successful please test with a multimeter whether the circuit is conducted If not you can sure that mechanical mechanism is normal but electric mechanism is damaged In such case please replace the miniature circuit breaker and inspect the above steps 3 Fan Thermorelay a Protective condition fans current overload or phase lack b Results of action execution units stop display of fans overload on touch screen thermal overload relay trip failure of start c Processing mode inspect whether there are fans wiring loose Inspect whether the value of fans protection is in a proper position Inspect whether fins are fouled Please reset the thermorelay manually if needed Notes Because the motor and the thermal overload relay have different thermal inertias the temperature of motor is still very high while the thermorelay can be reset Please inspect whether the temperature of motor is too high when you can t sure the failure clearly Immediate resetting is impossible in the case of overload trip You have to wait until the thermal effect of the thermorelay is Over 4 Moulded Case Circuit Breaker a Protective condition there exists too heavy current or short
143. lubricating oil in the oil tank not lower than 1 2 of the oil level in the high oil immersion lens and no deterioration blackness Inspect the oil level and quality before start up for the two factors have direct impact on the performance and reliability of the unit There must be sufficient lubricating oil in the unit And during the shutdown of the unit the high oil immersion lens must be full of oil The oil must be full in stop status of the unit and above the 1 2 position in stable operation When the unit is in stable operation the oil level in the high oil immersion lens should be at least above the 1 2 position And there shall be no deterioration blackness of the lubricating oil or else qualified lubricating oil shall be changed before operating the unit Coil fin cooling fan shall rotate in correct direction without reverse rotation or shutdown Before operation of the unit Inspect whether the fan networks are deformed under stress whether there is friction and collision between the networks and the blades whether there are foreign matters in the network and whether the fin is deformed or damaged caused by oollision 55 r cooled screw chiller technical manual PLC series 6 There should be no deformation of the fan guard or foreign matters in it MCAC CTSM 2013 01 y gt im E LR EE w j in Paa is T E Le oe 7 hir TT 1
144. m below 8 After the inspection for all the above items is complete connect the control cabinet and the supply indication lamp will light up indicating that the oil heater is working Observe whether the phase loss protection is in normal condition if it is green light on close the single pole switch QF2 in the control cabinet then the control circuit begins working and the touch screen and PLC control are put into operation 9 Before start up the machine inspect whether the external system of the unit meets the conditions for start up e g whether the water cooling pump of the system is externally controlled or interlocked with the master compressor and that the water pump must be started before starting up the master compressor via external control 9 needle type D plug female head 9 needle type D plug female head RJ45 crystal head 6 8 9 1 L amp h 5 4 4 d a 2 2 45 cable 1 zal 7 RJ45 crystal head line 81594421 RJ45 crystal Communication Lines of PLC and Control Screen 52 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 1 2 Electric
145. mal During the shutdown of the machine the indicated temperatures of discharge fin and the environment shall be almost the same and the entering and leaving chilled water temperatures shall be almost the same 10 Before the unit leaves the factory the control cabinet is well connected with main motor electrical actuator and sensor elements of pressure temperature etc Therefore the wiring on site for the user is very simple Only the chilled water flow switch line and chilled water pump linked control line control contact is active need to be connected For the detailed connection way please refer to the circuit wiring diagram in the operation manual for the unit The attached circuit diagram represents the case of air cooled heat pump unit for user s reference as for the details the operation manual supplied with the unit shall be final 11 Target type flow switch is set on the chilled water pipeline which shall be installed at the outlet of the chilled water The NO contact of the target type flow switch shall be connected to the control circuit as per the wiring diagram Note Disordered water flow may lead to wrong action of the flow switch therefore the control cabinet will command the unit to stop after receiving continuous disconnection signals during 10 s 12 The tube where the temperature sensing probe is installed shall be filled with lubricating oil or other grease that will not freeze at the temperature of the leaving ch
146. meter tal lO uuu 30 2 COhIFOLFIOW Charl uuu Z maska unusapa 31 4 Control Screen Opberatighhuu u u u SD ansa s saus sas 33 5 Control Screen Menu u u 48 6 Introduction of Major Electric Components J 49 IV Maintenance Commissioning Q nnn nnns 51 Te COMMISSIONING PETER TOI TUE DIT 51 EN iu nare cteeeee 61 me 77 12 Stant BOUlO uuu u u y utpa s susu wass ass 77 2 AGIUSIMENE uu Su assay ada 83 3 Fan Control LOGIC ooi i erii dhan 86 A Oil healer control Logie rm 86 5 EXV Op ratloh amp WIRING eee 87 Appendix 1 134 saturation temperature pressure corresponding tables 90 Appendix 2 System working principle 91 Appendix 3 Capacity table eiue eei nire eani XE Ha nr ERE Reva RR
147. n broken capillary pipe or leakage Replace the expansion valve Yes Replace the one way valve One way valve is blocked Wrong discharge temperature senso package is use eran likely after service of the unit nstall correct temperature senso Inspect whether it is frequent if is replace PCB False alarm of controller Inform the customer service center 63 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 4 Compressor Overload Protection Compressor overload Replace the protection Compressor protection module is in module trouble Inform the customer service center 5 Differential Pressure Alarm Differential pressure alarm Yes Yes Reduee water flow for aircerditioning Ambient temperature in by around 60 and restart up winter is too low for starting machine and then adjust it to the heating normal flow No Yes Pressure sensor is in Replace pressure sensor trouble No Yes False alarm of controller Inspect whether it is frequent if replace Inform the customer service center 64 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 6 7 Flow Switch Failure Flow switch failure Yes Water pump is not open Open the water pump Yes Water flow switch is not Install or Inspect the installed o
148. n any case except the defrosting process the user must be prompted whenever there is a Stop signal in the process of unit defrosting Stop will not be allowed until the defrosting process is completed followed by the Stop sequence of the last module after the compressors meet the requirement of limitation of the shortest running time Any controller which has not been output independent of the Stop process shall not be output once again 2 The Stop signal exists when some modules among interconnected modules do not meet the Stop condition Unit modules which meet the Stop condition will be stopped as per the normal Stop procedure and those which fail to meet the Stop condition will not be stopped in sequence after entering the normal Stop procedure until they meet the Stop condition 3 minutes will be delayed to switch off water pump after Stop of compressors of all unit interconnected modules 3 The Stop signal exists when all modules among interconnected modules fail to meet the Stop condition with output displayed in the table of unit running status as required and Stop will not be allowed until the Stop condition is satisfied 4 The compressors will not be stopped with the variation of water temperature within the shortest running time once the modular unit is started except for failure protection 5 The compressors will not be started up with any Start command at the shortest Stop interval or between two Starts once the modular unit is s
149. n electrode and high silver electrode and scaling powder For copper pipe with diameter above 9 52mm larger welding torch is required to facilitate even heating of the copper pipe 6 As for vacuum pump and connection gauge pipe if the vacuum pump connection is not common for the general gauge pipe the connection transition pipe must be prepared 7 As for the refrigerant tank and connection the refrigerant tank connection must be sound and not damaged In addition it is important that the connection is common for related connection gauge pipe 8 Scissors generally used for connecting gasket of relative connective parts of cutting unit 9 Brush used for cleaning dry filter and oil filter etc 10 N Cutter used for cutting copper pipe Cutters with appropriate sizes shall be prepared for cutting copper pipes of different sizes 11 12 13 14 Pliers auxiliary tool Mouth expander consisting of bell mouth and mouth expansion Screwdriver incl slotted screwdriver and Phillips screwdriver with complete sizes gt Leak detector Leak detection powder is alternative if leak detector is not convenient for carrying 15 Universal meter for measuring current and voltage of the unit incl compressor fan and other parts as well as coil resistances of compressor fan and electronic expansion valve line connection and disconnection etc 16 Temperature detector for measuring temperatures of various points i
150. n that frost exists at the end of the filter it is likely to block the dry filter If frost exists at the end the dry filler is seriously blocked Seriously blocked dry filter must be cleaned or replaced If the temperature difference between dry filter front and end exceeds 5 C the dry filter is likelv blocked i ac 4 If refrigerant is desired to be extracted for the complete machine the refrigerant the system shall be transferred to particular refrigerant container via fluorine recycling machine 72 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 2 Replacement of Compressor take careful consideration before continuing with the following steps 1 Inspect the refrigerant system and various lines to figure out the cause of burnout of the compressor as far as possible 2 Recycle the refrigerant and before that prepare relative equipment and tools and especially keep good ventilation condition the working environment 3 Remove the compressor from the system and replace the dry filter 4 Inspect and clean the thermostatic expansion valve 5 Clean repeatedly the entire system with high pressure nitrogen 6 Extract vacuum in the system three times and reduce the pressure of the system to an appropriate value 7 Fill refrigerant in the system Pay attention not to start up the unit until the filling amount is at lea
151. n the system of the unit 66 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 17 Pipe bender for bending the copper pipe to certain degree and frequently used for tubing of pipeline in the unit 18 Measuring tape for measuring distance and length etc Il Common items and application 1 Copper nut incl metric and British systems for making connective pipe with copper pipe 2 Gasket cardboard for making gasket seal as sealing is frequently required during maintenance and service 3 PTFE tape for tightening nut connection etc 4 Insulating tape 5 Tighten strip for tightening wire or sensor etc The above are only common tools and materials Exceptional cases require particular considerations 2 3 List of Failures Failure Display ee Control Logic Flow switch failure Flow switch Flow switch The flow switch will be detected in 3 minutes of failure pump running If the flow switch of unit module is off all the time for 5S successively it shall be reported for flow switch protection Execute this failure unit in the failure stop procedure save the content of failure Confirm this failure manually on touch screen as required after resetting the flow switch detection will not be carried out in the period of stop nor started until the pump runs for 3 minutes Freeze protection Freeze alarm Antifreeze When leaving water temperature in a unit Switch modular unit is less than or equa
152. nal signal 4 to 20mA 62 Sensor 2 temperature 0 to 10V external signal Sensor 3 pressure Sensor 4 temperature 88 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Terminal Explanation Terminal Explanation DII Digital input 1 Connection tLAN pLAN RS485 Modbus 9 terminal Connection tLAN pLAN RS485 Modbus terminal Digital input 2 A Connection pLAN RS485 Modbus terminal T Service port after removal of the cover need to be connected LED 6 USB wANcoweter s ratio of pressure sensor evaporation pressure 9 NTC suction temperature 89 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Appendix 1 H134a saturation temperature pressure corresponding tables R134a saturation temperature pressure corresponding tables c 48 164 sn na a no 326 a 9 2070 se Los Note this table of pressure values for absolute pressure value the pressure value unit touch screen display value for the vast pressure value and the local atmospheric pressure difference Appendix 2 the flow chart of the system 90 Air cooled screw chiller technical manual Appendix 2 system working principle map LSBLGW380 C LSBLGW500 C PLC series MCAC CTSM 2013 01 VA GLA SIGHT gt C3 Ww I
153. nsport and hoisting of the master compressor Or the electrical elements e g air switch AC contactor etc in the control cabinet of the master compressor and the compressor might be damaged 5 Carefully inspect all the electrical lines with a multimeter and whether the connections are properly installed Carry out measurement in mega ohm and ensure that there is no short circuit at the shell Inspect whether the earth wire is properly installed and whether the insulation resistance to ground exceeds 2MQ And inspect whether the supply line meets the requirement of capacity 6 Inspect whether disconnection switch is installed to the supply line of the supply unit 51 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 7 Carry out complete inspect for all connections of the main circuit in the control cabinet and all external connections of the control circuit before power connection e g oil heater compressor electronic protection circulatory water temperature sensor target type flow switch connection water pump linked control communication line connection etc inspect the bolts of the wiring terminal for looseness Inspect whether various electric meters and appliances are properly installed complete and available Inspect the interior and exterior of the electrical cabinet especially various wiring ports for cleanness If the communication lines of the PLC and control screen are damaged refer to the diagra
154. o ensure the reliable working on the site B Transport simulation test in the laboratory on a vibrating table 4 Simple Structure Easy Installation B The unit can be placed in service after being connected with power supply and water supply during field installation Standard flange connection and wire mesh to the electrical panel make the installation easy and simple 4 State of Technique Accuracy Control m The sensors related to control and other assemblies are equipped by factory and strictly tested B Intelligent control The unit is controlled by micro controller PLC and has the automatic control functions of fault diagnosis energy management and anti freezing monitoring which ensures the high efficiency operation of the unit and more convenient in use The unit with RS485 open protocol communication interface BMS compatible The startup and shutdown of each unit is controlled by the host computer reducing the running cost to the lowest B Complete and safe control system All electrically control elements are designed and selected with stable quality and reliable function The unit designed with multiple security measures ensure the safe and reliable running witch including high and low pressure protection oil pressure difference Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 protection anti freezing protection water flow protection power protection overload protection etc
155. oe dee a 86 96 66 eze 1166 ete er JTT 6 L 19 s E f 0 o 8 i wo W02 prerns 00 Id n 10 In 60 UR 9 e N 1 15 10 9 19 6 NHdddOvdV I8tcnl EV ON 1 011 9n HI 61 LI cI I 1 01 I KI 6I J m tH a on a wo J TI 002 182 we 06 le oz lez kzz joz gl Jor FPL EL or 8 VG XIG XTI8 X 0S XIV XIGV XI66 SIX X e Lu gs lt gt 0015 E VS 145 VS Ty OI TSH 546 TIS 205 645 145 006 10 Bo XIES XTIA X 6v XIBV XI C C c C C C C C c C e C e y 0 7 e 81 9 E x Z 5 2 2 5 lt cx lt aa lt 2 gt Lj gt us gt p ur Ss a lt gt 7 e
156. of supply line in control cable Power section It is required to connect the power supply cable to the control cabinet of the unit when it arrives at the jobsite The power supply cable is connected to the terminals of L1 L2 L3 N and PE and the terminals need to be fixed again after 24h running the minimum allowed time Please seal the entering wiring hole after users installed the main power wires in order to avoid the dust entering into electric control cabinet Caution it is suggested that to use appropriate tools to make sure there is a enough height to install the main power wires if the basement is higher than 200 mm
157. ontrol box Foundation L un poten Foundation M14 Weight to be supported by isolator kg Model 2 LSBLGW500 C unit mm NU IDE IE AJ Control box a Foundation bolt M14 Weight to be supported by spring isolator kg Model NAR WT 16 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 3 LSBLGWO600 C unit mm bi 0 JOOU J LN Control box Foundation M Unit bottom D s Foundation bolt M14 Weight to be supported by spring isolator kg Model ELI NE NUM UM NN owo 72 94 4 LSBLGW720 C unit mm _150 5880 _ sic 12 i A Control box Foundation u lt Unit bottom I Foundation bolt M14 H 1 F E Weight to be supported by spring isolator kg _ 4 181 EN 17 Air cooled screw chiller technical manual
158. oo i D iui 1930 CN N IN c BIER cd 4 5 S 5 IIS N T CB Vosr 1007 08 XU 224 ZHOS 46 Zt TT es es e 4 oues ole sIOMO Q II 19410 xe A Vege iuge Tuis m ___ S Mic 6 00 7 086 2806 dt c TIG gt p p T TAZ 7 SR N I B N 3 s B E JT a 4 SR e TAS PP 5 a I mi 0142 01400102 Ad 64 6 612 dd 8NC 840 870 Sd WZ 242 nZ dd 940 942 902 dd siz GAz cnc dd PAZ VOZ SMZ SAZ enz dd 242 240 ad TAZ KD E LAIZ c Chaz E cC chaz TE mua GC C E c Chag gt 20 55 5 105 6 25 25 05 lt a 2 Mom E L SRE ARR xdi cene Aes as as eR ee brviz V V uum EM uM EN Wiz ul 2 owes 97 SIOMOTQ II I9U10 Ld LL E xe TI I I t i 224 Wor 40670 Y9I ddr 2 E UU Dx WG Te NES zd my XN XN XN XN XN x S x V9T AOE 7 4 e e e e d e 45 40170 qd 40 1 gt 2 6 1 e i oT e e e e l k 116 Cl a 11 AOOV O8E 2109 Ad N d I 5 2013 01
159. ooled screw chiller technical manual PLC series MCAC CTSM 2013 01 II Installation 1 Installation Dimensions amp Vibration Isolators Vibration isolators are recommended for all roof mounted installations or wherever vibration transmission is a consideration Neoprene Isolation is optional it is recommended for normal installations and provides good performance in most applications for the least cost Spring isolators are level adjustable spring and cage type isolators mounted under the unit base rails Deflection may vary slightly by application Spring isolator MHD 850 202502301043 Mei Huan Yan Cheng City Spring isolator MHD 1050 202502301044 Mei Huan Yan Cheng City The housing of MHD series with aluminum magnesium alloy material could prevent the vibration isolator from rustiness forever and enlarge the use life The structure also has new improvement with an anti side force function for better Stability and safety of unit It can be freely adjusted as balancing situation of unit to guarantee its work under all situations Technical Date of MHD kg N HE mm 3400 OUTER SIZE OUTERSZE mm 2 5 MODEL B C 51 52 13 12 15 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 1 LSBLGW380 C unit mm A Cs Al fee Ne C SD X4 OU _ C
160. ooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Ambient temperature Outlet Model Temp Cooling Power Cooling Power Cooling Power Capacity Capacity Capacity Cooling Power Capacity 5 6340 1336 6092 1477 5910 1597 5694 1727 5574 1826 5264 198 7 5072 2086 6 6533 1359 6279 150 1 6095 1620 5875 1751 5752 1848 5437 2012 5240 214 7 6740 1385 6479 1528 6293 1646 6069 1776 s6 1412 6679 1555 649 1 1672 6263 1802 6145 1895 2063 5597 2165 9 7153 1438 6879 1582 6689 1698 6457 1828 6341 1919 5993 2088 5775 2192 600 EEE DE IEE IE AE TE TE TE D OR TETE 818 5 157 0 787 9 171 6 767 9 182 8 742 6 195 7 732 4 203 7 691 9 221 6 666 8 232 6 Ls Pans use wes ras nes usa mes nas ooa oni eer aei 767 1 177 6 744 1 189 9 717 3 204 2 690 5 218 7 676 9 221 636 8 247 1 611 2 259 2 soo isso siss 20LL 7870 2511 7584 2201 741 2376 699 2575 ILI 299 UAPOONETEECOIWCTACT NC ONE CA 9137 291 s818 2241 2260 8285 2396 8135 2478 7642 2684 7814 2808 NONE ONE 4 p ors 2061 osol _ 2236 9293 2368 8985 aso 8828 25 8285 2704 7527 2689
161. ower on of units and report immediately failure of EXV module when the alarm output point of EXV control module is switched off lt Description Communication failure displayed on main page for units 1 Itis divided into internal communication failure and master slave communication failure A small box indicating Communication Failure will appear on touch screen in case of internal communication failure and communication light will flash at frequency varying from high to low Possible cause poor contact of communication line 2 Master slave communication failure inspect for error of wiring between master and slave and whether setting of station number is correct 70 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 2 4 Installation Removal and Service of Key Parts 1 Refrigerant Recycling and Adding If transfer and recycling of refrigerant are required during the maintenance and service the following items shall be carefully considered deformation and 1 If oil differential pressure alarm occurs in the allure of the oil iltering net need to unit the lubricating oil deteriorates and is be replaced emulsified or the unit is used for too long the compressor oil filter and tank shall be cleaned and the unit lubricating oil shall be replaced If the unit oil filter is deformed or damaged it needs to be replaced Before replacing compressor fil
162. play the station number address the station number of master is set to 1 Note To start up following conditions are required Restart Delaying need to display NO if YES it indicates the delaying period has not achieved 2 Water Temp Allow Compressor Start need to display YES if NO it indicates the current temperature is not able to meet the compressor starting condition 3 Remaining Oil Heating Time need to display 0 if more than 0 it indicates the oil heating is in process 42 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 To shut down the following condition is required Min Running Time Elapsed need to display YES if NO it indicates the shortest running period has not achieved I button to enter the current data interface the interface indicates current detection data User can enter this interface to query the temperature information when there are alarms such as temperature too high or too low EWT T LWT T Ambient Temp 0 0 t Discharge Temp 0 0 Fin Temp Suction Pres 0 0 Bar Discharge Pres 0 0 PgDn BACK Current Data Display Input INPUT Remote Start 1 Comp Overload Prot Switch i Remote Stop 1 Fan Overload Prot Switch Water Switch Anti freeze Switch 1 High Pres Switch 1 0il Pres Differ Prot Switch 1 Low Pres Switch 1 Motor Prot Switch or Power Prot Switch 1 Con
163. r and firm and whether the sensor itself is normal 4 Control Screen Operation Initial Startup e Before power up for the first time make sure that the wiring is firm between the control box and the main switch the insulation resistances reach the requirements and the earth wire has been properly installed The wiring might be loose due to the factors such as long distance transport Carry out complete inspection for the bolts of all wiring terminals for looseness Be sure that the distribution capacity is compliant with the power of the unit and the diameter of the selected cable can bear the maximum working current of the unit Inspect whether the red emergency stop button on the control box is in natural state 4 1 Introduction of Control Screen HILLER Home 1 Power indicator yellow which is on when display is powered on it is off when powered off 2 Status indicator green which flashes at low frequency when display is normally operative 33 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 otherwise it is off 3 Communication indicator red which flashes at high frequency when display and PLC communicate normally otherwise it is off 4 PLC and touch screen procedure version showing the number of PLC and touch screen procedure version used by the current unit 4 2 Basic Interface and Operations Indicate that the system is initializing last abou
164. r maintenance and service shall also be done when the power supply is disconnected 6 The non user parameters in the touch screen of the unit and electronic expansion valve control module are forbidden to be changed The non user parameters in the touch screen of the unit and electronic expansion valve control module are directly related to the performance and reliability of the unit and are not allowed to be changed in principle Even if it is required to adjust some parameters due to special local climate it shall be done by or under the instructions of after sale personnel or professionals in the factory 7 If any exceptional case occurs to the unit it is forbidden to forcibly start up the unit unless under the instructions of professionals Exceptional temperature pressure sound or vibration etc of the unit during the running shall be clearly recorded in details and reported to after sale personnel or professionals in the factory It is forbidden to forcibly start up the unit unless permitted 76 ir cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 V Control Logic 1 Start Stop Logic 1 1 Start Logic 1 Cooling Start Complete initialization Step B Select cooling running mode Start signal Switch on pump Detect water temperature every other temperature control cycle Step A Power on Step C Idle status Detect water All energy temperature se
165. r properly installation of water flow installed Switch Yes Water flow switch is in trouble Service the water flow switch No False alarm of controller Inspect whether it is frequent if is replace PCB Inform the customer service center Power Failure Power failure Wrong power phase sequence Adjust wiring Yes Phase loss Inspect power supply Replace phase loss protection Failure of phase loss protection 65 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Inspect whether it is frequent if is replace PCB False alarm of controller Inform the customer service center 2 2 Common Items and Tools for Unit Commissioning and Service In order to realize immediate and effective commissioning maintenance and service the following tools and items shall be available depending on units tools and applications 1 External hex wrench incl adjustable and non adjustable wrenches 2 Internal hex wrench comp better 3 Pressure gauge incl gas liquid gauge and connective gauge pipe mainly for measuring pressures of various locations in the system monitoring the pressure during adding of refrigerant and functioning as a switch 4 Refrigerant recycling machine recycling refrigerant in the system 5 Welding torch and relative equipment welding torch electrode both commo
166. ransformer Detect the quality of power supplied to units by the user detect the voltage range of the power the imbalance rate of three phase voltage phase sequence and phase lack and protect the units by inspecting the quality of power Transform the electrical system applied by the user into AC220V for supplying power to the control circuit It can isolate harmonic disturbance between circuits and increase control accuracy The moulded case circuit breaker acting as a main circuit switch with circuit protection is generally applied for newly developed units The intermediate relay has the major action of separating control circuit from power circuit to avoid heavy current of the latter from returning to control circuit in case of any failure and burning down PLC and other important components Control on off of circuit and also has the action of short circuit protection on control circuit Transform main incoming current into low current to be accessed to the thermal overload relay to enable the thermal overload relay to judge whether the current is too heavy so as to play a role of current protection 50 Air cooled screw chiller technical manual PLC series 5 2013 01 IV Maintenance and Commissioning 1 Commissioning 1 1 Electrical System Connection Inspection 1 Inspect whether power distribution capacity is compliant with the power of the unit before the first start up and whether
167. ressure switch Motor protector Oil level switch Oil differential pressure switch Contactor Compressor overload relay To be detected during both stop and running Switch off the low pressure switch when discharge pressure of the system is lower than 1Bar report low pressure protection stop the module immediately the failure stop procedure and save the content of failure To be detected during both stop and running Switch off the protection switch in compressor in the case of high temperature of compressor winding or high compressor discharge temperature or phase sequence error of compressor power or phase lack Stop the units immediately in the failure stop procedure and save the content of failure Do not switch on the units in accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after failure is eliminated To be continuously monitored prior to start report oil level protection in case of continuous switch off of oil level switch for 3S and start of compressor is not allowed to be detected in running switch off the oil level switch in case of continuous switch off of oil level switch of compressor for 605 during running of compressor Then report oil level switch protection Immediately stop the units in the failure stop procedure and save the content of failure To be detected in running switch off the oil differential pressure sw
168. ries MCAC CTSM 2013 01 2 Maintenance 2 1 Common Troubleshooting 1 High Voltage Protection High voltage protection Yes Yes Reversed cooling and heating Adjust operation mode Bower stops rotating rotates in Yes reversed direction when cooling water pump is not open or the Inspect the blower or open flow insufficient when heating the water pump Yes Replace the Expansion valve z expansion valve can not be opened Press controller is in trouble Replace the press controller in heat exchanger for cooling is too dirty or aged or too heavy encrustation in tube shell for heating Replace the heat exchanger Yes One way valve is Replace the one wa blocked valve d NO Yes Air exists in system generally likely after Empty the air re extract service of the unit vacuum if necessary NO Yes Inspect whether it is frequent if is replace PCB False alarm of controller NO Inform the customer Service center 61 Air cooled screw chiller technical manual PLC series 2 Low Voltage Protection Low voltage protection Yes Reversed cooling and heating No Compressor suction stop valve is not open NO ower stops rotating or rote in reversed direction when cooling water pump is not open or the flow insufficient w
169. rtest compressor running Select system A of the longest compressor runnina time Power on 25 solenoid valve system A compressor Power off main contactor system A compressor Stop all fans of system A compressor Power off 2596 solenoid valve system A compressor 81 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 3 Downtime Failure signal detected Power off the main contactor compressor of failure unit power on 25 solenoid valve and power off load solenoid valve being powered on Power off all fans of this failure module Power off 25 solenoid valve of this failure module Water pump will stop running after Stop of the last failure module for 3 minutes when any non resettable failure not resulting from flow switch occur in all modular units Description 1 Double Compressor Stop Mode When the units meet the Stop condition after point Stop of units When both compressors are running with regard to the double head mode the unit of longer running time will be stopped prior to the other and the other stopped in 30S provided both units meet the Stop condition The compressors will be unloaded and stopped in accordance with the step by step unloading mode For example with regard to the compressor running at 75 when the condition for compressor Stop is satisfied after point Stop the units will firstly be unloaded to 50 then unloaded to 25 to run for a period of time follo
170. s simultaneously immediately for this module and save the content of failure Do not switch on the units in accordance with the conditions of temperature and time until this failure is confirmed manually on touch screen as required after switch resetting Power Failure Power Failure Phase To be detected at any time report power failure sequence in cases of high low voltage of power or phase protector unbalance and phase lack Failure will be eliminated after power gets right Notes phase lack phase stagger of power will be detected during both initial stage of power on and unit running High Fin temp High Fin Fin temp To be detected in running the fin temperature of temp sensor the system is higher than 65 and the failure record indicates that the fin temperature is too high High Discharge High temp Discharge Discharge temp sensor be detected in running the discharge temperature of the system is higher than 110 C and the failure record indicates that the discharge temperature is too high Leaving water Leaving water Leaving water Switch off compressors in case of failure of the temp sensor failure temp sensor temp sensor sensor itself Switch off of pump and fans will be temp failure delayed The failure indicator of display board Entering water Entering Entering will be on and a corresponding alarm mark will temp sensor failure water temp water temp displa
171. s MCAC CTSM 201 3 01 Multi Unit through which different operating interfaces are accessible Introduction of their functions will be detailed hereafter Start is required upon completion of unit set up directly click on START button on the lower left and the following dialog box will be popped up at this moment click on CANCEL if you don t expect to execute the start Confirm Startup Ensure unit start up 8 The sign Failure to start please check the status will appear when the conditions of compressor stating can t be required 9 There is a rotate button with a key beside the touch screen When the units need to be maintained by the user or after sale service personnel while expecting to see parameters from the touch screen the user may rotate the button to the service point and System under maintenance please don t start will be displayed below main page at that moment Start operation is not allowed at this moment Any action of maintenance or power operation shall not be taken in the absence of personnel who have been specially trained and certified 10 Help information abbreviation of words in units will be explained in detail in help interface 11 Click on BACK return to previous page of units mode selection interface 8 button disappear when the combination mode is Single unit Click button to query the current unit status Starting Operation The system is in pause sta
172. s of 29 Air cooled screw chiller technical manual PLC series MCAC CTSM 201 3 01 large power electrical appliances such as water pump and user electric heating must be interfaced with a relay or the PLC might be burned Other outputs can be directly connected to indicator lamps or alarms 2 Electric parameter table 1 Power Table Model Main power Max allowed running PISIS current A 2 Compressor amp fan Compressor Model Start Rate of Rated running Fan Quantity current current power fan current current quantity A A ww za ume sm so CO 4 ae SISI so Refer to 380 500 C LSBLGW1420 C Refer to 600 C 600 C 16 940 Refer to 720 C 0 0 14 6 16 30 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 3 Control Flow Chart 2 Compressors 6 to 10 Fans 380VAC Double Head 14 to 20 Double Head 3P N PE Compressors Moulded Case Circuit Breaker Miniature Circuit Breaker oouenbeg eseug Compressor Fan Contdictor I Contactor Fan Contactor Star Delta Start Output Module PLC CUP Module Commu nication Terminal for Output Action Terminal for HMI External Signal e g Solenoid Valve e g Temp Pressure lt Guidance of common electric problems treatment 1 Phase sequence protector a Protective cond
173. st 60 of the rated amount of the unit This can be realized by lifting the refrigerant steel cylinder and fill it in backward direction 8 Continue filling refrigerant after the start up till it reaches the rated filling amount It can be filled in liquid if necessary Ensure that the liquid filling point is before the vapor liquid separator better at the inlet of the evaporator 9 Leave the system running for 48 h extract a small amount of compressor oil inspect the taste and measure the acidity with PH paper Replace the compressor oil if necessary 10 After step 9 is completed leave the system running for another 48 h If everything is normal change the dry filter to the original model for the unit 11 After the above steps inspect the system again in two weeks to ensure the working conditions and operation of the unit meet the requirements of the design 3 Replacement of Shell and Tube Evaporator 1 Inspect the water system and various lines for whether the evaporator is damaged 2 If it is damaged and needs replacement disconnect the power supply of the unit and recycle the refrigerant 3 Loosen the water inlet and outlet joints separate the pipeline connected to the evaporator through welding different units have different heat exchange types therefore when welding the connective pipeline all connection locations shall be recorded Wrong connected pipelines will cause gas cross in the system 4 Clean the system d
174. stance at Maximum End of Pressure Drop see product parameters Pipeline Resistance length of the least favorable loop pipe 0 05 Local Resistance length of the least favorable loop pipe 0 05 0 5 1 1 21 2 The flow switch must be arranged on the drain pipe of the evaporator The flow switch shall be interlocked with the input contact in the control cabinet Its installation requirements are as 22 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 follows 1 The flow switch shall be installed on the pipe vertically 2 The straight pipe section at each side of the flow switch shall have a length that is at least 5 times the pipe diameter do not install it near the elbow orifice plate or valve Connection user supply Water flow Target The straight pipe section for installation of the flow switch 1s satisfied The installation of the flow switch 1s unsatisfied 3 The direction of the arrow on the flow switch must be consistent with the direction of water flow 4 In order to prevent vibration of the flow switch remove all air in the water system 5 Adjust the flow switch to keep it in open state when the flow is lower than the minimum flow the minimum flow is 7096 of the design flow When the water flow is satisfied the flow switch shall keep in closed state 5 The water filter must be installed before the water inlet pipeline of the unit which shal
175. t s lt 5 lt lt Sas Bcc E lt g im vn T a s E 23 a Li ao lt gt gt lt gt gt gt Cx ao a 2 E c ca EO E c E 3 E c 2 v 4 5 lt 2 gt mad xL 2 gt aT mm 6 lt cx 5 C a ou e Se ES m jum cs Seat LE t pr 1 N 0 0 r 7 UL 8 9 Air cooled screw chiller technical manual Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Aux Heater Heat pump X 22 Heating Heat s 19 21 43 6 X 20 41 00 01 02 05 04 05 06 Q7 Q8 Q9 010 011 012013 014 915 COMICOMI X 18 17 39 X 15 X 16 e O 1X 19 1X 20 e CO 1X 18 11517 O 1X 15 TM2DRATORT 1X 16 E 1X 13 29 pms ALL Vale y es 1X 11 JRE 27 10 Volve Only Heat
176. t 30 seconds flash 1 1sencond L3 LEESETT After the system initializing is completed please clink on ENTER button and the Password Input dialog will be popped up please input the User Password 58806 or User Manage Password 40828 and click ENTER into the next interface Mode Setting 11521 15 MIDEA AIR COOLED SCREW CHILLER ENTER H 912 11m D 912 Password Input gt Setting Page 34 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 MODE SETTING LOCAL COOLING 1 Mel Eum iu LOCAL REMOTE 2 COOLING Mode Setting Page Control mode and working mode are to be set in this page 1 Control mode and running mode which have been selected currently for units are displayed here and this position will correspondingly vary according to the choices of customers when selection of modes is changed 2 Selection of unit control modes including three modes LOCAL REMOTE TIMED i e local control remote control timing control 3 Selection of unit operation modes including three modes PUMP COOLING i e pump mode cooling mode 4 Click on PgDn to enter the next page Main Page 5 Click on BACK return to the homepage of units Note 1 control mode and running mode can be selected optionally in standby status while only the control mode can be switched in running s
177. t to run until the current detection temperature is higher than the setting temperature of compressor start then the unit enter Running status Shutting down status the status display shutting down after the unit has been confirmed to execute shutdown action After finished the unit enters Standby Status Protection status indicating that the unit is in a failure status currently click on alarm information to see alarm details Control mode and running mode the current mode will be displayed here For example the current page displays that the unit is in a LOCAL and the running mode is PUMP MODE Detection Mode Leaving water control is by default only in the single unit mode with entering water control not allowed entering water control is by default in the multi units combination mode with setting of leaving water control not allowed Combination Mode indicates Single unit when the unit isn t in the case of multi combination control and indicates Multi Units when the unit is Multi combination control Note When the system has only one unit please don t set to multi unit control This position is the unit alarm display area and alarm information of failure content will be displayed here in a mobile mode in case of any failure in units Functional key area of units It has the functional keys of SETTING ALARM STATUS 36 Air cooled screw chiller technical manual PLC serie
178. tactor Protection PgUp 1 Oil Level Switch Reserved r 1 EXV Feedback Input Status ON as displayed indicates the input point is closed OFF as displayed indicates the input point is open Note Remote Start Stop is available only under REMOTE mode Water Switch indicating that current water flow status of chilled water system OFF displayed in no water flow state otherwise ON 3 Contactor Protection indicating that when the compressor start to run the contactor act normally OFF switch to ON 43 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 4 All of protection switch is ON in normal condition and OFF in failure status Output Status E U a 4 1 Reserved 1 Economizer 1 Mid Inject 1 Tail Inject 1 Oil Supply Val 1 Bypass SOL Val Reserved T LE Compressor Pump 1 25 SOL Val 1 50 SOL Val 1 75 SOL Val a m m a 1 Fan NO 1 1 Fan NO 2 14 Fan NO 3 Reserved 1 Fan NO 4 Reserved 1 Fan NO 5 Cooling 1 Fan NO 6 1 Alarm 5451515 T B 8 d 4 El El El El El E pa T 7 D El 1 o Er 4 1 Output ON as displayed indicates the output point is energized OFF as displayed indicates the output point is de energized Alarm ALARM
179. tatus 2 Control Mode The selection of the ways of Unit starting stopping LOCAL indicates you can only start or stop the unit through Start Stop button in touch screen REMOTE indicates you can only achieve the unit starting or stopping though the Remote Start and Remote Stop hardware interfaces TIMED indicates the unit can achieve timing start stop according to the time set by the user gt Main Page 35 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 2012 03 13 TUE 09 42 50 5 1 SYSTEM STATUS STANDBY SETTING CONTROL MODE LOCAL ALARM 2 6 RUNNING MODE COOLING STATUS 3 DETECTION MODE LWT CONTROL 4 COMBINATION SINGLE UNIT Multi Status 7 8 9 10 11 Main Page oystem Status Current system status of units is displayed here The status of system possibly displayed is as follows Standby status in normal condition displaying Standby status after the unit is powered on Running status indicating that starting of unit compressors has been finished entering the running status after double head Start of one compressor and it has entered the process of automatic energy adjustment from this point Pause status The unit enters Pause status when the current detection water temperature chilled outlet water temperature in single unit or chilled inlet water temperature in Multi units is lower than the setting temperature of unit pause The compressor star
180. te when the water pump has been completed to open but the compressor is unable to start because some other factors can t satisfy the condition of compressor starting the interface indicates Failure to start please check the status The starting conditions include oil heating time restart delay the temperature of compressor starting In this case only when all of the conditions have been meet the unit starts to operate the compressor otherwise the sign Failure to start please check the status will keep displaying in the main page Note Clicking on gt button is invalid when the unit is in failure The unit can start normally only when all of the alarm have been eliminated and reset manually on the touch screen interface 37 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Confirm Startup When the current ambient temperature is beyond the allowed running range the below page will be popped up AMBIENT TEMPERATURE BEYOND THE RANGE UNIT STOP If the current temperature return to the rage click to the OK and the unit will start to run normally Shutting down Operation Click on button and the Confirm Shutdown dialog will be popped up Click on Confirm if you ensure execution of Shutdown action the system status indicates Shutting down Note The system status indicates shutting down even the requirements of shutting down the compressor are not meet The un
181. tep A to start up at the interval of 120 s Only some of modular units stopped adjustably the units that have been stopped will be executed from step A and each module will be started at the interval of 1205 Description 1 Double head Start Mode According to the running time of compressors the unit of shorter running time will be started prior to the other in the case that both compressors meet the starting condition and No 1 head 78 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 If water temperature has been within loading area after the head started prior to the other the other will be started in two minutes If water temperature has been or had been immerged in loading area in two minutes the other head will not be started until the head started prior to the other has been started and loaded to 100 in case that further loading is required for the unit according to the energy adjustment process 2 Multi Connected Start Mode Water pump starts to run upon point start of units and the duration of switching on the water pump is from 3 to 5 minutes The units will be converted into idle mode upon switching on the water pump and then attempt will be made to switching on the compressor The running times of all jointly controlled units will be sequenced in case of multi connection provided that the condition for switching on the compressor is satisfied The unit of shorter running time will be started prior
182. ter cleaning compressor oil tank replacing unit lubricating oil oil level switch stop valve connected to the compressor or other parts close the pressure equalizing pipe stop valve of discharge valve suction valve and injection flow expansion valve of the compressor and discharge Dirty block oil filtering het need cleaning refrigerant in the chamber of the compressor After the replacement and cleaning are completed pump vacuum in to the compressor via vacuum pump and after that negative pressure shall be kept When the resumed vacuum in the unit meets the requirements add part of refrigerant generally 5 10 kg depending on particular situations 2 Before replacing electronic expansion valve of the system pressure sensor sampling stop valve low pressure pipeline etc force the refrigerant in the liquid part of the system The particular steps are take careful consideration before continuing with the following steps Close the dry filter angle valve of the system otart up the unit and emergently stop the unit when the gas in the system is below O 5bar Close the liquid air valve of the compressor Discharge the residual refrigerant in the gas system Carry on replacement of the parts of the system 0o O After the replacement extract vacuum the gas After the vacuum extraction keep the negative voltage until the resumed vacuum in the unit meets the requirements h Op
183. terconnected When the core is turned inward the two pipelines are not interconnected 2 Each time when acing or cleaning the strainer oil filter stop valve etc inspect relative sealing faces for leakage after filling of refrigerant 3 Recycling of refrigerant is not part of the normal running therefore the protection settings of the unit must be ensured valid especially when the unit needs to operate If the protection switch is short connected due to protection failure start up is in principle not recommended 4 The system of air cooling screws unit is generally complicated and the flow line is long if replacement cleaning and welding of parts at some area are required close the valve as close to the engaged area as possible and minimize the volume of vacuum extraction 5 If vacuum extraction is required for the complete machine because of the complicated system it is better to divide the system into several parts for vacuum extraction or extract vacuum at several points in the system generally 3 points at least in addition it is better to choose the vacuum pump of larger model If the vacuum pump is relatively small sufficient time for vacuum extraction shall be guaranteed 6 During filling of refrigerant valid metering device is required for accuracy of filling amount Empty the connective pipeline before filling refrigerant each time Refrigerant pipe with reliable quality shall be chosen to prevent accident durin
184. th PLC to display the running status of units set the running mode of units and control the running parameters of units Touch Screen Human Machine Interface HMI Achieve AC220V DC24V to provide power supply for touch screen also for PLC and intermediate relay in some tailor made products Switch Power Supply An element necessary for achieving compressor contactor star delta switchover The time set above is defined as the star running time 3 to 6S Time Relay Work out the suction superheat in the running process of compressors through the temperature sensor NTC and the EXV Control Module pressure sensor connected to the module and regulate the opening of EXV through the suction superheat to enable units to run in a stable status of energy saving Heat will be generated when current passes through a conductor Heat effects are different due to different types of current passing through thermal Thermal Overload WA 6 lt sheet metal inside the Relay mi thermorelay When the heat effects are accumulated to certain degree the thermal sheet metal will be deformed so as to switch off front and rear parts of the thermorelay forcibly to achieve the purpose of protection 49 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Power Protection Module Isolating Transformer Moulded Case Circuit Breaker Intermediate Relay Miniature Circuit Breaker Current T
185. the diameter of the selected cable can bear the maximum working current of the master compressor The max economical conveying distance The max loading time in a year Ch Copper core length m 3000h 3000 5000 gt 5000h 2 Inspect whether the electric mode is compliant with that of the unit three phase five line three phase lines one zero line and one earth wire 380V 10 3 Inspect whether the maximum phase voltage unbalance is compliant with the requirement 296 for the maximum permissible phase voltage unbalance and 5 for the phase current balance The machine must not be started up when the phase voltage unbalance exceeds 2 If the measured unbalance is excess the power supply sector shall be informed of immediately The formula for calculation of phase voltage based on the maximum deviation from the average voltage is voltage unbalance maximum deviation from average voltage average voltage e g at nominal voltage 3N AC380V 50Hz the measured UAB 376V UAC 379V UBC 385V Average voltage 376 379 385 3 380V Determined deviation from average voltage 380 376 AUAC 380 379 1V AUBC 385 380 5V Maximum deviation 5V 5 380 1 3 the maximum phase voltage unbalance is 1 3 4 Inspect whether the supply circuit is the compressor is firmly and properly connected and tighten it if there is any looseness The screws might be loose due to the factors such as long distance tra
186. tment idle status Loading will be executed when entering water temperature is positioned in the loading area or the fuzzy loading area entering water temperature in a lower energy level will be firstly loaded and for entering water temperatures in the same energy level those of shorter running time will be firstly loaded Running times are compared in hours the same hereinafter When running times are identical those of smaller address number will be firstly loaded Unloading will be executed when entering water temperature is positioned in the unloading area those a higher energy level will be firstly unloaded and those of longer running time will be firstly loaded when energy levels are identical 85 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 The module will remain in the status after unloaded to 50 load and the other module of longer running time will be unloaded if unloading is still required All modules running in an interconnected mode will be unloaded to 5096 load and modules of longer running time will be firstly stopped if entering water temperature needs to be unloaded Compressors and fans will not be started once again to run when entering water temperature meet the reset Start condition while meeting the shortest Stop time of compressors 3 Fan Control Logic The number of operating fan as required is according to the discharge pressure For example for LSBLGWS00 C there are 8 f
187. to the current temperature In the pressure gauge scale taking the right figure for example the outside values are pressure values unit bar and the inside values indicate saturation temperatures of refrigerant R134a respectively under the relative pressure The types of refrigerants indicated in different pressure gauges might differ Table 1 R134a Refrigerant Pressure Gage Pressure MPa R134a Refrigerant Pressure Gage Pressure MPa Refrigerant Temperature Refrigerant Temperature 58 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 If the high low voltage deviates much from the saturation pressure corresponding to the current temperature more than 2bar maybe there is leakage or insufficient refrigerant in the system 2 Inspect whether the oil heating of the unit is normal Before start up it is necessary to inspect whether the oil heating in the unit is available and whether there is the condition that the oil heater does not work because of no power supply It is particularly important in winter when the temperature is low and the failure of oil heating might lead to poor lubrication of the unit The optimum working temperature for current types of lubricating oil is generally around 40 Compressor oil heater working when the unit is electrified 3 Inspect whether there is alarm for trouble of the display screen if there is the trouble must be corrected
188. to the other when both units meet the Start condition and the unit of smaller station number will be switched on prior to the other in the case of identical running time Double Compressor running time the running time of one head of shorter running time than that of the other will be taken as the reference during loading and the running time of the other head will be directly taken as the reference if one head does not meet the starting condition the running time of one head of longer running time than that of the other will be taken as the reference during unloading and the running time of the other head will be directly taken as the reference if one head does not meet the unloading condition When no unit running has been started the jointly controlled units will be started at the interval of 2 minutes for each in the Start order with water temperature is in the loading area to be executed as per the above double head single unit mode with double head treated as one unit and energy adjustment will be executed individually by the unit that has been started when water temperature is not in the loading area a single unit will no longer execute energy adjustment individually nor the unit that has not been switched on will be switched on at the interval of two minutes and the complete machine will start to run in accordance with the normal process of energy adjustment 1 2 Stop Logic 1 Normal Stop Shut down signal Step E E
189. topped and they will not be started up for operation until the shortest Stop interval and the interval between two Starts of compressors 2 Energy Adjustment Logic Energy adjustment may be controlled by either entering water temperature or leaving water temperature in case of operation of single module unit and it can only be controlled by entering water temperature in case of multi module interconnection Compressor Capacity Adjustment The capacity output of the unit is determined by the valid length of slide valve which is controlled by 3 solenoid valves The control system cycles compressors loaders and minimum load control 83 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 valves to maintain the user configured leaving or entering chilled water temperature set point Temperature sensors transfer temperature signals to PLC which will calculate the optimum time to add or subtract capacity stages Special algorithm programmed in PLC will try to maintain the Control Point at the desired set point gt 4 stage control 50 100 The 4 step capacity control system is made of one slider three NC solenoid valves and one piston with adjustable range of 2596 5096 75 and 10096 The principle of capacity control is by moving the slider to allow partial refrigerant to bypass back to the intake and regulate the refrigerant flow M a O ER
190. ure 25 bar b il A NITE THE NUMBER OF FIN HEAT EXCHANGER S FAN MODULES TS DIFFERENT FOR DIFFERENT AIR CONDITION UNIT TEMPERATURE SENSOR 7 9 Air cooled screw chiller technical manual LSBLGW1200 C LSBLGW1420 C PLC series MCAC CTSM 2013 01 TEMPERATURE SENSOR Max working pressure 17 DUAL PRESSURE SWITCH NDTE THE NUMBER FIN HEAT NGER S FAN MODULES IS DIFFERENT FOR DIFFERENT AIR CONDITION UNIT bar Designed pressure 18 bar PRESSURE RELIEF VALVE DUAL Project pressure 24 67 bar PRESSURE SWITCH Project pressure PRESSURE SENSOR TEMPERATURE SENSOR 20 21 bar N PRESSURE RELIEF D i VALVE HIGH PRESSURE GAUGE TEMPERATURE SENSER LOW PRESSURE GAUGE SOLENOID VALVE 103105 j ECONOMIZER T UN vWa3Hl V A 79 AN JA SOLENOID VAL Eus AJ NULLUM PRESSURE SWITCH TEMPERATU RE S
191. water flow through the evaporator The flow rates must fall between the minimum and maximum values shown in the below table Flow rates below the minimum values shown will result in laminar flow which will reduce efficiency cause erratic operation of the electronic expansion valve and could cause low temperature cutouts On the other hand flow rates exceeding the maximum values shown can cause erosion on the evaporator water connections and tubes even piping breaking Variable chilled water flow through the evaporator while the compressor s are operating is not recommended The chiller control set points are based upon a constant flow and variable temperature e s a2 4 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Evaporator Water Pressure Drop Curve m 120 C 100 E um Sp T iseLGwsoo cF Q ac 60 to E 2 lum WE us opp O LSBLGW720 C o Emm omm mu 20 40 60 100 120 140 160 Evaporator Water Flow Evaporator Water Pressure Drop Curve p 120 E m O 5 IL I LSBLGW1200 C 100 Tawa TT T TI7TT T T L T TT TT I T T ZT T Le
192. wed by Stop of compressors 25 solenoid valve will continue to be powered on for a period of time to facilitate resetting of the solenoid valve when both compressors are switched off The whole process of Stop will be completed upon running of water pump for 3 to 5 minutes after the compressors are switched off 2 Multi Connected Stop Mode The units will meet the Stop conditions after point Stop The unit of longer running time will be stopped prior to others with regard to multi connected 82 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 units sequenced in accordance with running time and the unit of greater station number will be stopped prior to others when the units are of the same running time The compressors will be unloaded and stopped in accordance with the step by step unloading mode For example with regard to the compressor running at 75 when the condition for compressor Stop is satisfied after point Stop the units will firstly be unloaded to 50 then unloaded to 25 to run for a period of time followed by Stop of compressors 25 solenoid valve will continue to be powered on for a period of time to facilitate resetting of the solenoid valve when both compressors are switched off The entire Stop process will be completed upon running of water pump for 3 to 5 minutes after the compressors are switched off Remarks The units Stop command must be executed whenever there is a Stop signal i
193. xecute step E at Whether the system the interval of 30S has the shortest running time to satisfy the compressor for other modular units not stop YES 79 Air cooled screw chiller technical manual PLC series Select system A of the longest compressor runnina time Current compressor running at 75 Load judgment Current compressor running at 100 One temperature control cycle Power on 50 solenoid valve system A compressor Power on 2596 solenoid valve system A compressor Power off main contactor system A compressor Shut down all fans of system A compressor Step F Power on 25 solenoid valve system A compressor Shut down all modular units Switch off water pump shut down ended MCAC CTSM 2013 01 Current compressor running at 50 One temperature control cycle 80 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 When all modules are in the energy adjustment idle status 3 minutes will be delayed to switch off water pump after Stop signal is received 2 Energy adjustment Stop All unit module compressors run after unloaded to 50 Detect water temperature every other temperature control cycle Remain in current NO status Other modular units not stop executed this Whether water temp is in unloaded area step every other temperature YES NO Whether there is any modular unit satisfying the sho
194. y80Ig 111911 2 7 193991g 1119117 958 2 2116 10112921014 eos 02 19010 150 10920 ZYL 1 NOLIdTINOSSQ WALI TOMNAS WALT NOLIdINOSSQ WALI TOSNAS WALI 126 5 2013 01 PLC series Air cooled screw chiller technical manual LSBLGW880 C WIRING DIAGRAM JosseJduio2 1490002 06 1900402 uu9 09 E AOOV O8E ZHOS H4d N d YOUIMS E uorI4rsod qQueu ejsur ALY CIST 1151 MOTA TBOTIIOA ido D PM Pon t ge gt N
195. yed Failure Query The sensor failure sensor compressors will not be restarted until the failure Fin temp sensor Fin temp Fin temp of sensor is eliminated and the failure signal failure sensor failure sensor must be cleared manually otherwise it cannot be Ambient temp Ambient Ambient cleared sensor failure temp sensor temp sensor failure Discharge temp Discharge sensor failure temp sensor temp sensor failure sensor failure sensor failure sensor Low pressure alarm Low pressure Low pressure Do not restart the units until confirming manually switch on touch screen as required when the suction pressure detected by the system is lower than the setting value for continuously 1s High pressure High pressure High pressure Do not restart the units until confirming manually alarm switch on touch screen as required when the discharge pressure detected by the system is lower than the setting value for continuously 1s Differential Differential Differential To be detected in running Currently there are pressure alarm pressure pressure two modes one is direct use of differential alarm switch pressure switch namely that when the 69 Air cooled screw chiller technical manual PLC series MCAC CTSM 2013 01 Suction Pressure High Pressure Discharge Beyond the operation range Mode water temp protection EXV module failure Low Suction Pressure High Discharge Pressure

Download Pdf Manuals

image

Related Search

Related Contents

  Mittelmotor 2014  MDS Intrepid MDS Intrepid Ultra  Fagor 3FIC-372 fridge-freezer  Instrucciones RDR  平膜テストユニット FTU-1 取扱説明書 メンブレン・ソルテック  H71Z_no logo user manual _English_  Adams Infra-Red Heater User's Manual  Difrnce MP1850  

Copyright © All rights reserved.
Failed to retrieve file