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 空調(diào)系統(tǒng)的控制主要分為繼電器控制系統(tǒng)、直接數(shù)字式控制器（DDC）系統(tǒng)和可編程序控制器（PLC）系統(tǒng)等級幾種。由于故障率高、系統(tǒng)復雜、功耗高等明顯的缺點，繼電器控制系統(tǒng)已逐漸被淘汰。DDC控制系統(tǒng)雖然在智能化方面有了很大的發(fā)展，但由于其本身抗*力差、不易聯(lián)網(wǎng)、信息集成度不高和分級分步式結(jié)構(gòu)的局限性，從而限制了其應用。相反，PLC控制系統(tǒng)以其運行可靠、使用維護方便、抗*力強、適合新型高速網(wǎng)絡結(jié)構(gòu)等顯著的優(yōu)點，在智能建筑中得到了廣泛的應用。為了提高空調(diào)系統(tǒng)的經(jīng)濟性、可靠性和可維護性，目前空調(diào)系統(tǒng)都傾向于采用*、實用、可靠的PLC來進行控制。

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鄭娟萍

廈門仲鑫航自動化設備有限公司  

采用傳統(tǒng)的繼電器控制系統(tǒng)來實現(xiàn)熱泵的控制，由于機械接觸點很多，接線復雜，參數(shù)調(diào)整不方便，而且機械接觸點的工作頻率低，容易損壞，可靠性差。采用直接數(shù)字式控制器（DDC）雖然可以減少接線，可靠性有所提高，但由于DDC其本身的抗*力差、不易聯(lián)網(wǎng)、信息集成度不高和分級分步式結(jié)構(gòu)的局限性，因此，越來越不能滿足復雜多變的智能控制要求。

ALLEN BRADLEY CIRCUIT BREAKER 1492-CB1 G10010A 10A 10 A AMP 277V 2P 2 POLE

Square D Circuit Breaker 7A 7 amp 3 pole 600v UNKOWN MODEL NUMBER

General Electric GE Circuit Breaker THQB 2120 THQB2120 20A 20 A Amp 2P 240V New

BIMBA FLAT-1 FS-178.813-MMT FS178813MMT 11 1/4" - 20 1/4" AIR PNEUMATIC CYLINDER

ITE Circuit Breaker EF3-A010 EF3A010 600VAC 10A 10 A Amp 3 Pole Used

WESTINGHOUSE 1 POLE CIRCUIT BREAKER 20A 20 A AMP 277 VDC 

CUTLER HAMMER EATON 3PH 480V MCC BUCKET 6AF1206986 60A 60 A AMP BREAKER HFD3060

SCHLAFHORST 147-655 078 G AUSGANG 32P S/P OUTPUT CARD

CHALLENGER BREAKER CF 25K CF3020 20A 20 A AMP NEW

GE General Electric Circuit Breaker TJJ436175 175A 175 A 175A AMP 600VAC 3 Pole

NEW LOT OF 3 SQUARE D BREAKER EGB14020 20A 20 A AMP 277V VOLT 1 POLE 

SQUARE D CIRCUIT BREAKER QOB220 20A 20 A AMP 2 POLE 120/240VAC 22KA

LOT OF 4 GE GENERAL ELECTRIC BREAKER TED113020 20A 20 A AMP 277Vac 2 POLE 

SQUARE D FH-16050 C BREAKER 50A 50 A AMP 1 POLE NEW

SQUARE D 600A 600 AMP A MOLDED CASE CIRCUIT BREAKER MH36600 SER 2

NEW DWYER SLACK TUBE MANOMETER 1211-200 1211 200 1211200 50 PSI 130° F

MITSUBISHI NF30-CB NF30CB NO-FUSE BREAKER 5 AMP 5A A 2P 250V

MITSUBISHI NF30-CB NO-FUSE BREAKER 10 AMP 10A A 2P 250V

MEM Breaker N14929-ALR100 C32 32A 32 Amp A 1P ALMCL132

FUJI AUTO BREAKER EA33M  10A A AMP 220V VOLT 3 POLE 

ALLEN BRADLEY CIRCUIT BREAKER 1492-GHD050 1492GHD050 SER A 5A 5 AMP A 250V NIB

FUJI AUTO BREAKER EA33M 220V VOLT 32A A AMP 3 POLE 

SIEMENS CIRCUIT BREAKER B350 3 POLE 50A 50 A AMP 240V

MERLIN GERIN CIRCUIT BREAKER 60122 MULTI 9 C60 D4A 4A 4 AMP A 240 VOLT 1P 1-POLE

CHALLENGER SJK-3-C-250 250A 250 A AMP CIRCUIT BREAKER 3P 600V 600 V VOLT 3 POLE

MERLIN GERIN MULTI 9 24335 CIRCUIT BREAKER C60N C6 400V VOLT 6A A AMP 2 POLE

GE General Electric Breaker TED136015 15A 15 Amp A 3P

Westinghouse Circuit Breaker HMCP100L3C 3P 100A 100 A Amp 600VAC 250VDC Used

No Name Taper Lock Bushing 1610 15/16" 1610-15/16 New

SQUARE D BREAKER FAL22015 15A 15 A AMP SER 2 240Vac 2 POLE 

CUTLER HAMMER TRIP BREAKER LD3400 400A 400 A AMP 600Vac 3 POLE w/400A TRIP 

ABB CIRCUIT BREAKER S281 K1A 1A 1 A AMP 1 POLE 230/400V

GE GENERAL ELECTRIC BREAKER TE1020 20A 20 A AMP 120Vac 1 POLE 

SQUARE D FCL34030 480V 480VAC 480 VOLTS 30A 30 A AMP 3P CIRCUIT BREAKER SERIES 3

ALLEN BRADLEY CIRCUIT BREAKER 1492-SP1C050 SER C 5 AMP A 5A 1 POLE 1P

NEW GE GENERAL ELECTRIC BREAKER TJD422250 250A 250 A AMP 240Vac 2 pole 

NEW LOT OF 2 SQUARE D BREAKER EGB14020 20A 20 A A AMP 277V VOLT 1 POLE 

CULTER-HAMMER CIRCUIT BREAKER EGE3100FFG 240/480V 100A 100 A AMP 3 POLE

LOT OF 2 SQUARE D BREAKER 992115 TYPE ML 15A 15 A AMP 125Vac 1 POLE 

CHALLENGER CIRCUIT BREAKER 400A 400 A AMP SJK-3-C-400

LOT OF 2 GENERAL ELECTRIC CIRCUIT BREAKER THQL115 15A 15 A AMP 120/240V

New Fafnir 3MM9110WI DUM  C1 Super Precision Bearing 3MM9110WIDUMC1

Lot of 2 Nuplaflex 4A115 Hammer Tip 4A-115 1-7/16" 5/16-18 Thread New

Square D Circuit Breaker FY120 1 Pole 1P 20A 20A Amp Lot of 2 Used

NEW SQUARE D 24517 MULTI 9 C60 MINIATURE SUPPLEMENTARY PROTECTOR 2A 2P 277V

General Electric Breaker TFJ226100 100A 100 Amp A 2P

Schleicher Relay SSP56 SSP56 118V 500W 380V 6A

SQUARE D CIRCUIT BREAKER FC24040AC FC24040 40AMP NEW

NEW ITE CIRCUIT BREAKER EE2-B015 15A 15 A AMP 240Vac 2 POLE EE2B015

Square D Breaker FA26100AB 100 Amp 100A A 2P 2 Pole

NEW EMECANIQUE BREAKER ISOLATOR GK2-CF06 GK2CF06 1,6A 1,6 A AMP 

WESTINGHOUSE SHUNT CIRCUIT BREAKER ET 53913 15A 15 A AMP 600Vac 2  POLE 

Siemens Control Relay RCN10 RCN 10 120V Coil 600VAC 10A 10 A Amp Used

CUTLER HAMMER BREAKER HMCP250W5 SER C 250A 250 A AMP 600Vac 250Vdc 3 POLE 

GE SIZE 0 STARTER W/ENCLOSURE 1 PHASE CR306J1 AAYA

WESTINGHOUSE BREAKER JDB3225C 225A 225 A AMP 600Vac 3 POLE w/225A TRIP 

Fuji Electronics Circuit Breaker BU-ECA2020 20A 20 A Amp 2P 240 VAC Used

SQUARE D LC 500A 500 A AMP I-LINE CIRCUIT BREAKER LC36500

Siemens Circuit Breaker 5SY4202-7 5SY42027 5SY42 MBC C2 5SY42MBCC2 2A 2 A Amp

SIEMENS CIRCUIT BREAKER 5SX22 D3 3A 3 A AMP 400V 2P 2 POLE

MITSUBISHI CIRCUIT BREAKER 15A 15 A AMP NF30-CB 2P 250V

2) New Potter&Brumfield Breaker W28-XQ1A-0.25 .25A 1/4A

GENERAL ELECTRIC CIRCUIT BREAKER TEC36030 600V 3 POLE 30A 30 A AMP 

CUTLER HAMMER SHUNT BREAKER FD3100BP10 100A 100 A AMP 600Vac 250Vdc 3 POLE 

FEDERAL PACIFIC CIRCUIT BREAKER NEF 213020 1 POLE 277V AC 125V DC 20A 20 A AMP 

NEW SQUARE D CIRCUIT BREAKER SFAL3032 415V 32A A AMP 3 POLE 

NEW SQUARE D BREAKER KAP36150 SER 2 150A 150 A AMP 600Vac 3 POLE 

Siemens Circuit Breaker NEG3B125 125A 125A Amp 3P 600 VAC 250 VDC Used

P&H Harnischfeger Transformer 71988-1 .500 KVA 220/440V HI 45/50V LO 1PH Used

HEINEMANN HH83XB334 3 POLE 28A 28 AMP CIRCUIT BREAKER

NEW WESTINGHOUSE BREAKER EB2010 10A 10 A AMP 240Vac 2 POLE 

Mitsubishi NF225-SS NF225SS 225A 225 Amp A No-Fuse Breaker 4 Pole

Westinghouse Breaker BA BKR 15A 15 Amp 15 A 2 Pole 

SQUARE D CIRCUIT BREAKER FA-26030-BC SERIES 1 30 A 30 AMP 240/480/600 V 2 POLE 

ABB MG-9688 300A 300 A AMP 600V 3 POLE CIRCUIT BREAKER

Allen Bradley Circuit Breaker 1492-G100 10A 10 Amp A 1P

ALLEN BRADLEY 1492-G100 CIRCUIT BREAKER 10 A AMP SER B 

General Electric GE Breaker TF136030 30A 30 Amp 600V AC

ABB Breaker S4 SACE PR211 AF01086051 AB-3588 250A 250 A Amp 3P w. Shunt Wire 

Siemens ITE Breaker ED63B100L 100A 100 A Amp 3P 600 VAC New

General Electric Breaker THQB 20A 20 A Amp 1P RT-692 Lot of 2

ABB CIRCUIT BREAKER S 271 K 0,5 A S271K05A E76126 480V

SIEMENS CIRCUIT BREAKER 5SX22 C 10 10A 10 A AMP 400V 2 POLE

WESTINGHOUSE CIRCUIT BREAKER 225A 225 AMP A 3P POLE 15 1/2 X 8 1/4 X 3 7/8

SQUARE D 1 POLE 15A 15 A AMP FH-16015-C FH16015C NIB

GE 20AMP 1 POLE E-11592 THQL CIRCUIT BREAKER NEW

CUTLER HAMMER BREAKER FD3100L 100A 100 A AMP 600Vac 250Vdc 3 POLE 

No Name Circuit Breaker E3070D E3070 D 3 Pole 70A 70 A Amp Used

I-T-E SIEMENS Breaker CFD63B125 125A 125 A AMP 3 Pole 600 VAC USED

LOT OF 2 SIEMENS CIRCUIT BREAKER 5SX22C6 6A 6 A AMP 2 POLE 400V

GE GENERAL ELECTRIC BREAKER TFK236F000 225A 225 A AMP 600Vac 3 POLE 150A TRIP 

ITE BREAKER FJ3-B200 200A 200 A AMP 600Vac 3 POLE FJ3B200 

GOULD ITE I-T-E IMPERIAL DIRECT ACTING TRIP CIRCUIT BREAKER OD 3 400A 400 AMP A

Siemens Circuit Breaker 3VN5200-0FT00 3VN52000FT00 100A 100 A Amp 3P 3 Pole Used

Square D Mini Supplementary Protector 24144 MG24144 Multi9 C60 3P 6A 6 A Amp New

WESTINGHOUSE BREAKER F3030 30A 30 A A AMP 600Vac 3 POLE 

OPTO 22 Solid State Relay 380D25 32 VDC Used

SQUARE D FCL24030 480V 480VAC 480 VOLTS 30A 30 A AMP 2P CIRCUIT BREAKER SERIES 3

Westinghouse Circuit Breaker F3040 40A 40 amp 600v 3 pole 371D375G15

Westinghouse Circuit Breaker 315C148G24 35 Amp 35A Amp 600 VAC 3 POLE 3P USED

I-T-E GOULD ELECTRIC CIRCUIT BREAKER E43B090 3 POLE 90A 90 A AMP 480 VAC LK-3799

NEW EMECANIQUE MOTOR CIRCUIT BREAKER GV2 ME05C 0,63-1A A AMP 3 POLE GV2ME05

Westinghouse Circuit Breaker Protector 179C368G22 15 amp a 15a 204P042H01B

SIEMENS CIRCUIT BREAKER 5SX22 C25 25A 25 A AMP 400V 2P 2 POLE

GE GENERAL ELECTRIC CIRCUIT BREAKER TEB132050 50A 50 A AMP 240VAC 3 POLE 

Dongan Transformer 33-100-PM 33100PM 240/480V HI 120V LO 1PH 0.100 KVA New

GE GENERAL ELECTRIC BREAKER TEB132025 25A 25 A AMP 240 VAC 250 VDC 3 POLE

SQUARE D BREAKER FAL36020 20A 20 A AMP 600Vac 3 POLE

NEW LOT OF 2 CUTLER HAMMER CIRCUIT BREAKER BR120 20A 20 A AMP 1 POLE 120/240 VAC

WESTINGHOUSE SHUNT BREAKER JB3150 150A 150 A AMP 600Vac 3 POLE 

CUTLER HAMMER CIRCUIT BREAKER QC120 1 POLE 1P 20 AMP A 20A - USED

WESTINGHOUSE FB3070 70A 70 A AMP 3P 3 P 3 POLE 600VAC 600 VAC CIRCUIT BREAKER

WESTINGHOUSE CIRCUIT BREAKER QC3040H 40A 40 A AMP 3 POLE 240V

Mitsubishi Circuit Breaker NF-SF2015 NFSF2015 15A 15 A Amp 2 Pole 480VAC Used

Federal Pacific FPE Breaker NF-S 4330 30A 30 Amp A 3P 

CUTLER HAMMER CIRCUIT BREAKER WMS1C30 30A 30 A AMP 1P 1 POLE 240V

WESTINGHOUSE CIRCUIT BREAKER FB 30 A 30 AMP 30A

WESTINGHOUSE 1221C54G01 CIRCUIT BREAKER 15A 15 AMP A 600VAC 3 POLE 3P 

SQUARE D CIRCUIT BREAKER SFAL3063 SER 2 240/480V 3 POLE 63A A AMP 

Westinghouse Circuit Breaker FDB3015L 15A 15 A Amp 3 Pole 600 VAC 250 VDC New

Mitsubishi No-Fuse Circuit Breaker NF30-CB NF30CB 20A 20 A Amp 3P 250 VAC Used

ABB CIRCUIT BREAKER W/ AUXILIARY CONTACT S281Z4A 4A 4 A AMP 1P 1 POLE 230V

I-T-E GOULD ELECTRIC CIRCUIT BREAKER 3P HN3-F800 HN3F800 800A 800 A AMP 600VAC

NEW GE GENERAL ELECTRIC BREAKER TED124030 30A 30 A AMP 480Vac 250Vdc 2 POLE 

ALLEN BRADLEY BREAKER 140U-G2 40A  40 A AMP 480Vac 3 POLE 140UG2

ITE SHUNT CIRCUIT BREAKER ET 53591 15A 15 A AMP 600Vac 2 POLE  

Westinghouse Breaker QBHW2020 20A 20 A 20 Amp 2P 2 Pole

KLOCKNER MOELLER CIRCUIT BREAKER FAZN C2 -2 FAZNC22 2P 2POLE 2A 2 A AMP 480V

ALLEN BRADLEY BREAKER 140M-I8P-C30-M 30A 30 A AMP 600Vac 3 POLE 140M-I8 

I-T-E Breaker BQ1B030 BQ1-B030 30A 30 Amp 30 A 1P LOT OF 2 

Siemens Circuit Breaker 5SY4202-7 5SY42 MCB C2 w/ Auxiliary Switch 5ST3010-A

NEW MERLIN GERIN CIRCUIT BREAKER C60N 17416 32A 32 A AMP TYPE C 277 VAC 1 POLE

Siemens Circuit Breaker 5SY4208-7 5SY42 MCB C8 w/ Auxiliary Switch 5ST3010AS 

SQUARE D BREAKER KAB36150 150A 150 A AMP 600Vac 3 POLE 

ALLEN BRADLEY BREAKER 140U-I6C3-C70M 70A 70 A AMP 600Vac 3 POLE 140U-I6 

LOT OF 2 SIEMENS CIRCUIT BREAKER 5SX21B6 6A 6 A AMP 230/400V

LS CIRCUIT BREAKER BKND40 40A 40 A AMP 3 POLE 400V

WESTINGHOUSE EHB3070L CIRCUIT BREAKER 480 VAC 70A 70 AMP A 3 POLE 

WESTINGHOUSE BREAKER KB3100 100A 100 A AMP 600Vac 3 POLE 

NEW SIEMENS CIRCUIT BREAKER 5SJ4 204-8HG41 5SJ42048HG41 2P 2 POLE 4A 4 A AMP 

GE GENERAL ELECTRIC BREAKER TEC36003 3A 3 A AMP 600Vac 3 POLE 

FEDERAL PACIFIC BREAKER NEF3100 100A 100 A AMP 480Vac 3 POLE 

SIEMENS 3VU1301-1MH00 MOTOR PROTECTOR 1,6-2,4A 3VU13011MH00

SIEMENS 5SX22 D6 2P 2 POLE 400V CIRCUIT BREAKER NEW

ABL Sursum Circuit Breaker FI 42.03 FI4203 25A 25 A Amp 400V 30mA 4 Pole New

FEDERAL PACIFIC BREAKER 4350 50A 50 A AMP 480Vac 3 POLE TYPE NF-S

CUTLER HAMMER WMZS1D01 1A TYPE D 277VAC 1P 1 POLE CIRCUIT BREAKER NEW 

Fuji Electric Circuit Breaker SA33M 2.6A 2.6 A Amp 3P 600 VAC Used

Carlingswitch CB2-B0-24-615-121-E Breaker CB2B024615121E 15A 15 A Amp 2 Pole NEW

Westinghouse Circuit Breaker AB De-Ion 315C148G17 1.2 A

CROUSE HINDS CIRCUIT BREAKER MP270 70A 70 A AMP 2 POLE 

WESTINGHOUSE AB DEION CIRCUIT BREAKER EHB3070-L EHB3070L 70A 70 AMP A 480VAC NIB

NEW SIEMENS CIRCUIT BREAKER 5SJ4316-7HG41 5SJ43-16A 16A 16 A AMP 3 POLE 240V

ABB ASEA BROWN BOVERI Circuit Breaker E-3860 Type ES 30 amp A 30A 600v 3 pole 3P

General Electric GE Breaker TFJ226125 125A 125 Amp A 2P

Square D FHL36020 Circuit Breaker 20A 20 Amp A 3 Pole

WESTINGHOUSE BREAKER EA1020A 20A 20 A AMP 120Vac 1 POLE E-7819 

SQUARE D FH16070B 1 POLE 70A 70 A AMP BREAKER NEW

ABB CIRCUIT BREAKER S271K6A 6A 6 A AMP 230/400V 1P 1 POLE

Square D Transformer 9070 K350D1 220/480V HI 110/120V LO 0.350KVA 0.350 KVA New

SIEMENS CIRCUIT BREAKER 5SX21 D3 3A 3 A AMP 1 POLE 230/400V

ALLEN BRADLEY CIRCUIT BREAKER 1492-CB1 1492CB1 G150 15A 15 A AMP 1 POLE SER B

ALLEN BRADLEY CIRCUIT BREAKER 1492-CB1 H100 10A 10 A AMP 1 POLE 277V

ALLEN BRADLEY CIRCUIT BREAKER 1492-SP1B100 1492SP1B100 10A 10 A AMP 1 POLE SER C

NEW LOT OF 2 NATIONAL CARBON MOTOR BRUSH 1-1/4" LENGTH 5/8" WIDTH 5/16" THICK

SIEMENS CIRCUIT BREAKER 5SX23C6 6A 6 A AMP 3 POLE 400V

New Cutler Hammer C40 40A 40 Amp A 3P 3 Pole 

I-T-E  Breaker QP 90A 90 Amp 90 A 3P 3 Pole

WESTINGHOUSE CIRCUIT BREAKER 600A 600 AMP A DE-ION TYPE AB 1313663 600VAC 3P

I-T-E Breaker HED41B040 40A 40 Amp A 1 Pole HED4

SQUARE D CIRCUIT BREAKER SFHL3016 SER 3 240/480V 3 POLE 16A 16 A AMP 

SIEMENS SENTRON CIRCUIT BREAKER 600V 3P 125A 125 AMP A HFXD6 HFXD63B125

SQUARE D CIRCUIT BREAKER SFAL3016 SER 2 240/480V 16A A AMP 3 POLE 

GE MICROVERSATRIP TRIP UNIT 1600A 3000A C330LI TR16B

HEINEMANN BREAKER GJ1-H99-DU 250A 250 A AMP 1 POLE GJ1H99DU

ALLEN BRADLEY CIRCUIT BREAKER 1492-CB2 1492CB2 G010 1A 1 A AMP 480V 2P 2 POLE

NEW WESTINGHOUSE DE-ION BREAKER 59E7863 600 A 600 V 3 P

emecanique GK1-FF Fuse Holder 22 x 58 125A 125 A Amp 690V 3P 3 Pole

CUTLER HAMMER BREAKER FRAME 4 POLE 68C2555G01 1H0266 PJ4 250W

ITE Circuit Breaker EF3-B020 EF3B020 20A 20 A Amp 3 Pole Used

NEW Airpax IEGX66-1-52-30.0-A-03-V Circuit Breaker 80Volt Max 52Delay 30 F.L Amp

NEW WESTINGHOUSE SHUNT BREAKER EB 62E3179 10A 10 A AMP 240Vac 2 POLE 4979D06G03 

SQUARE D 15A 15 A AMP FA26015BC 2 POLE CIRCUIT BREAKER

Westinghouse Breaker EHB1020 20A 20 Amp A 1P 1 Pole

ALLEN BRADLEY BREAKER 140M-I8R-D15-M 150A 150 A AMP 600Vac 3 POLE 140M-I8

ITE Siemens 5A Circuit Breaker ED63A005 5 A 600AC 250DC

I-T-E Circuit Breaker ET4063 25A 25 Amp A 3P 3 Pole 

AIRPAX CARRIER HH83XB421 BREAKER 31A 480V TRIP 38A

SQUARE D BREAKER FYMO20C FYM020C 20 AMP A 20A  1P NEW

GE GENERAL ELECTRIC BREAKER E11592-R 225A 225 A AMP 600Vac 3 POLE 200A TRIP 

SQUARE D 1 POLE FAL12015 15A 15 A AMP 120 VAC BREAKER 1 POLE 

ALLEN BRADLEY CIRCUIT BREAKER 1492-SP1D060 240/415 VAC  SER C 6A A AMP 1 POLE