在确定机组的容量时，对于一般地区而言，由于空调负荷大于采暖负荷，因而，根据空调制冷负荷确定即可。对于寒冷地区用户，在一定的时间内，空调负荷可能不再大于采暖负荷。在这种条件下，可以根据情况采取两种处理方法：一是以供热负荷及其对应的环境条件与机组的运行条件确定机组容量；二是仍然以空调制冷负荷确定机组容量，在机组供热量不能满足供热的条件下，采取补充辅助加热措施。文献[7]推荐的确定起动辅助加热措施的条件是“热泵系统的运行效率约为1.5至2.0”时。对于冬冷夏热的湿热地区，需要考虑的另外一个问题就是ASHP机组室外侧换热器的结霜以及由此带来的一系列问题。一般认为，环境温度在-5~5℃区间，为易结霜区，需要特别关注。

 ALLEN BRADLEY 634484 REV-7 9007,UAF CF
 ALLEN BRADLEY 634385 REV-E7, UCJ ,634385 REV-E7-90 CF
 ALLEN BRADLEY 634347-90 REV-3 1-50,UOD CF
 ALLEN BRADLEY 634275 9006, UBA CF
 Allen Bradley 634262 REV-11 90, ALLEN-BRADLEY UCE, ELCO 7023 CF
 ALLEN BRADLEY 1791-32B0 PLC I/O BLOCK, 10-30 VDC A-B 96364071 A01 BI
NIB ALLEN BRADLEY A06B 6115 H001
 YASKAWA FB5T-F012 6W0379-7,LHE-705-1000 SERVO MOTOR REAR SHAFT EXTENTION
 Sealed Allen Bradley 1756-IF8H /A 1756IF8H INPUT MODULE MFG:2014
 OLD ALLEN BRADLEY 1771-IBD INPUT MODULE, 10TO 30V DC INPUT, 16 INPUT , CY
 HITACHI PGM-CHH 2 EC CHARACTER PROGRAMMER W/ LED BACK-LIGHT & AUDIO I/F
 HAYWARD FLOSITE 2100 TOTALIZER FLOW INDICATOR BATTERY POWER FS2105CMTBE CK
 Allen Bradley bucket circuit breakerbination starter 50 amp size 2
 ALLEN BRADLEY 96389723 C1,T17 7UE 04 99553-986, POWERFLEX 700S 20D-MDI-C2 CS
 ALLEN BRADLEY 7.5 HP ADTABLE FREQUENCY AC DRIVE 1336-B007S-ECD-L1-RP3-R54
 ALLEN BRADLEY 2090-SCVG50-0 SER B GLASS FIBER OPTIC CABLE-WIRE D441549
 Allen Bradley 1771VHSC 1771-VHSC B High Speed Counter PLC-5
 Allen Bradley 1771-N0C /C 1771N0C
 ALLEN BRADLEY 1756 M2 A,96160872 CONTROLLOGIX 1MBYTE WORDS MEMORY MODULE CH
 Allen Bradley 1336 P AC Drive 1336S-BF75H-
 ABB A185-30, A185 3PCONTR,480/60,400-415/60 A185-30-22-51,CAL5-11, CG
LOT OF 2 ALLEN BRADLEY STARTERS 505-BOH SERIES C W/ AB 42185-800-01 OVERLOAD REL
Brand  Allen-Bradley Control Panel Cat# 1233XB-44 Series W Size 2 Type 3R
Allen-Brdaley Devic Panelview 2711-T10C10 Excellent Condition Free Shipping!
Allen-Bradley, YRZ296-0001-MEAF6PW2
Allen-Bradley, PanelView 1200 Operator Interface 2711TC1MC
Allen-Bradley SLC 500 1746-A10 174-L532 1746-IV16 1746-IV8 1746-OV16 1746-HSCE
Allen-Bradley Series 8200 Display Panel 8000BB_8OOOBB_900078-8000-FI01_Rev FT07
Allen-Bradley Rockwell Automation Panelview 1000 2711-T10G9 FRN 4.43 READ READ
ALLEN-BRADLEY POWERFLEX 700, 200 HP 480 VAC MOTOR DRIVE INVERTER
Allen-Bradley PowerFlex 700 ~ 10 HP ~ 20BE011A0AYNAND0 ~ 600 VAC ~ Tested Good
Allen-Bradley PowerFlex 700 ~ 10 HP ~ 20BE011A0AYNANC0 ~600 VAC Tested ~Series B
Allen-Bradley PowerFlex 700 ~ 10 HP ~ 20BE011A0AYNANC0 ~ 600 VAC ~ Tested Good
ALLEN-BRADLEY POWER FLEX 700 AC DRIVE 20BD3P4A5NYNANC1 
Allen-Bradley PLC-5/40 Contro Processor 1785-L40C15 ! WOW !
Allen-Bradley AC Servo Motor Ser. C 1326AB-B515E-21
Allen-Bradley 836T-D463J Pressure Difference Control
Allen-Bradley 8000-AGWZ circuit board 30 day return
Allen-Bradley 6181-AIABBBZZZ Intrialputer Ser. B
Allen-Bradley 2755-HDG-4 HAND HELD SCANNER ALLEN BRADLEY 
Allen-Bradley 2711-B6C8 Panelview 600 (PLC2588)
Allen-Bradley 2094-BC02-M02 Kix 6000 Power Supply Servo Drive (E24-911)
Allen-Bradley 1794-IR8 Lifetime Warranty !!!
ALLEN-BRADLEY 1791-IOBW Distributed I/O Module ! WOW !
Allen-Bradley 1771-AM2 ser. A I/O chassis - 60 day warranty
Allen-Bradley 160-BA04NPS1P1 One Year Warranty !
ALLEN-BRADLEY 1336S-B010- AN--EN4-GM1-HA2-L6E ADTABLE FREQUENCY AC DRIVE
Allen Bradley VME5/30 Circuit Board 61-0255-35 WOW
ALLEN BRADLEY VERSA VIEW 1200M 6186-M12ALTR OPERATOR INTERFACE
Allen Bradley Servo Drive Kix 6000 Axis Module 2094-BM02-S  2012 Ver 1.12
Allen Bradley PROSOFT MVI71-GSC |m Module
ALLEN BRADLEY POWERFLEX 755 20G11ND3P4AA0NNNNN /A 2HP
ALLEN BRADLEY POWERFLEX 700 20DD5P023EYYAENNN 3HP - 
ALLEN BRADLEY POWER FLEX 20BD2P13AYNACD1 SERIES B
ALLEN BRADLEY PLC-5/V80B 1785-V80B /E PROCESSOR MODULE VME/PLC5 100K WORD SRAM
ALLEN BRADLEY PANELVIEW P 600 2711P-T6C C /A 2711PT6C
ALLEN BRADLEY PANELVIEW 300 2711-K3A10L1 DEVIC/RS232
Allen Bradley Panelview 300 + Micrologix 1000plete Setup 2711-M3A81L1 1761
Allen Bradley Panelview 1200 2711-KC1 Ser F Rev A Frm 5.10.00 OP7D
Allen Bradley Panelview 1200 ,2711-TC1 Ser E rev C frm 5.01.00 apm AP7D
ALLEN BRADLEY PANELVIEW 1000e MODEL 2711E-K10C6
Allen Bradley Overload Relay 810-A03B 810 A03B 810A03B 600V 600 V
Allen Bradley Operator Workstation 953-07  #56400
ALLEN BRADLEY MPL-A420P-HJ22AA  MPLA420PHJ22AA
Allen Bradley MPF-A330P-SJ22A Servo Motor 4.18nM 5000RPM ! AS IS !
Allen Bradley Motor Starter 512-M/A43824  #28873
Allen Bradley Motor Control Center Bucket Saftronics PC10 3HP AC Drive
Allen Bradley Motor Control Bucket, Breaker, &AC Drive
Allen Bradley Motor Control Bucket, Breaker, &AC Drive
Allen Bradley MicroLogix PLC Trainer
Allen Bradley KADZ PCPmunication Module 8000-KAC_900034_8000KAC
Allen Bradley Intrial Monitor E20DPA
ALLEN BRADLEY I/O SCANNER MODULE. ! 1771-SN
Allen Bradley Guard Shield R4K1440YD Ser A, Rev B, R4K144OYD, 440L, 7W, 30MM
Allen Bradley Contactor 500-EOD930 #4, Series A, w/Coil 115-120v 60hz - 110v 50h
Allen Bradley Card 133583 rev 04 133598 rev 03 Spare Kit 133683 133684
Allen Bradley Cable Assembly M# 1326-CPB1T-D-030 ~NIB~
ALLEN BRADLEY CABLE 1326-CPC1-B060 ~ 
Allen Bradley Bulletin 1326 AC Servo Motor 1326AB-C2E-11-A7 part number 126116
Allen Bradley Bhless AC Servo Motor 460VAC 1326AB-B520F-21
ALLEN BRADLEY ARMORSTART CONTROL MODULE W/ BASE 280D F23Z 25D CRW SM DEVICE
ALLEN BRADLEY AC SERVO MOTOR & APEX GEARHEAD # MPL-A420P-HJ72AA RATIO: 10:1
ALLEN BRADLEY 900018REV4 ****
ALLEN BRADLEY 8600-2474L INTELLIGENT ROBOTIC TEACH PENDENT,ITP90, GB
ALLEN BRADLEY 8520-SER5 5KWC SERIAL DRIVE SERVO ***XLNT***
Allen Bradley 8520-COP Operator Interface without Display Screen *AS IS*
Allen Bradley 84 -SJZ3DN6DW Encoder Optical Absolute !  !
Allen Bradley 8000-KDHWZ PC BOARD IS REPAIRED WITH A 30 DAY WARRANTY
Allen Bradley 8000-KDHW PC BOARD IS REPAIRED WITH A 30 DAY WARRANTY
ALLEN BRADLEY 7300-UCO-2 ELCO 7023 5601 486 BULK STORAGE INTERFACE MODULE
ALLEN BRADLEY 7100-GRA  7100GRA
ALLEN BRADLEY 705TM-BOD5246  705TMBOD5246
ALLEN BRADLEY 705-DOD-7321  705DOD7321
ALLEN BRADLEY 705-COD-23  705COD23
ALLEN BRADLEY 700-RTC45Z030U24  700RTC45Z030U24
Allen Bradley 636411-901/636411901 PC Board
ALLEN BRADLEY 636403-90  63640390
ALLEN BRADLEY 6185-CACBAZZ SER A
ALLEN BRADLEY 6185-BAZAAZZ
Allen Bradley 520F-AOD Multi Speed Starter 115/120V Coil !  IN BOX !
Allen Bradley 509-BCB-1-6P Motor Controller With Stainless Steel Enclosure
ALLEN BRADLEY 505-BAD  505BAD
Allen Bradley 3HP AC Drive 1336F-BRF30-AN-EN-L5 **
ALLEN BRADLEY 2755-L7SC/A BAR CODE SIDE SCANNER ***NIB***
ALLEN BRADLEY 2711-TC1 SERIES E PANELVIEW **
Allen Bradley 2711-T9A8 /F FRN 3.01 PanelView 900 Mono/Touch/DH+/RS-232, Read!
Allen Bradley 2711-K 2 Operator Interface Panelview 500 240VAC ! WOW !
Allen Bradley 2707-L8P2X Ser. C Rev. C DTAM P Module 2707L8P2X
ALLEN BRADLEY 2706-LV4S  2706LV4S
ALLEN BRADLEY 22C-D6P0N103  22CD6P0N103
Allen Bradley 22B-D017N104 3Ph 10 H.P. Variable Frequency Drive
Allen Bradley 20BD5P0A0AYNANC0 Ser A Powerflex 700 3HP 480V Drive 
Allen Bradley 2098-DSD-030 Ultra 3000

3.2 水源热泵（Water Source Heat Pump） 以水作为热源的热泵称作为水源热泵（Water Source Heat Pump，WSHP）。通常以海水、河水、湖水及井水作为低温热源。由于水的温度变化较小，水源热泵的性能通常要比ASHP的性能好而且稳定。目前，以污水处理场凉水池的水作为低温热源的热泵系统已经在实际工程中采用，而且经济性能良好。以海水、河水或湖水作为低温热的热泵，一方面受自然条件的制约，另一方面，需要在热泵系统中，采取水处理及防腐措施。目前，以井水作为低温热源的热泵系统，是水源热泵机组和系统研究及应用的热点。井水特别是深井水，全年温度基本稳定而且水质良好，是热泵系统比较理想的低温热源，在工程中采用较多。但是这种系统有可能存在回水困难、回水污染及破坏地下水生态资源等环境问题。从可持续发展的角度，这是一种不宜采用的方式。实际上，在许多国家地区，已有相应的法律，禁止采用地下水资源作为热泵系统的低温热源。

Allen Bradley 1784-KTCS/1784KTCS ISA/EISA interface scanner **WARRANTY**
ALLEN BRADLEY 1778-OLC
Allen Bradley 1771-OBD/1771OBD Ser C Date Code 2011 SEALED!!!! !!!
Allen Bradley 1771-DR/1771DR Series A, Revision B Logic Controller
Allen Bradley 1771-DR/1771DR Series A, Rev A Logic Controller
Allen Bradley 1770-RG/ 1770RG Report generation
Allen Bradley 1769-L32E |pactLogix Ethe Processor - Mfg 2011
ALLEN BRADLEY 1756-SYNCH -FS- 1756SYNCH
Allen Bradley 1756-M03SE/1756M03SEE/1756-MO3SE/1756MO3SE SEALED! !
ALLEN BRADLEY 1756-L55 1756-M13 "LNC" 1756L55 1756M13
Allen Bradley 1756-EN2TR Series B Ethe/IP 10/100 Mbps ControlLogix 2 Port
Allen Bradley 1747-DTAM SLC 500 Data Table ess Module
ALLEN BRADLEY 1746-OB32E  1746OB32E
Allen Bradley 1746-NT4 Thermocouple Input Module For Programmable CTRL !  !
Allen Bradley 1746-NO4I | Tested with 12 month warranty
ALLEN BRADLEY 1745-LP157 SLC 150 PROCESSOR UNIT PLC MODULE 1745LP157 SER C
ALLEN BRADLEY 1734-IE8C  1734IE8C
ALLEN BRADLEY 151602  151602
Allen Bradley 13DJ33000 NSNP **GENUINE** AB 13DJ3 3000
Allen Bradley 1391-DES45-DI-AQB Digital AC Servo Drive (PLC1921)
Allen Bradley 1391-DES45-DI-AQB Digital AC Servo Drive (PLC1920)
Allen Bradley 1391-DES45-DI-AQB Digital AC Servo Drive (PLC1919)
Allen Bradley 1391-DES45-DI-AQB Digital AC Servo Drive (PLC1918)
Allen Bradley 1391-DES45-DI 1391 Digital AC Servo Drive
ALLEN BRADLEY 1336S-BRF75-AN-EN  1336SBRF7 NEN
ALLEN BRADLEY 1336S-BRF75-AA-EN-L6 SER D P II 
Allen Bradley 1336S-BRF50-AA-EN4-HAP-L6 Drive Ser D
Allen Bradley 1336S-BRF10-AN-FR4 AC Drive 480V 10HP ! WOW !
Allen Bradley 1336SBRF07 - AC Motor Drive - Excellent !
ALLEN BRADLEY 1336S-B007-AA-EN3-HA1-L6 SER C FRN 3.04 460V AC DRIVE 10KVA
Allen Bradley 1336F-CWF100-AN-EN AC Drive ! WOW !
ALLEN BRADLEY 1336F-BRF20-AN-EN-GMS1  1336FBRF20ANENGM
ALLEN BRADLEY 1336F-BRF20-AN-EN  1336FBRF20ANEN
ALLEN BRADLEY 1336F-BRF200-AN-EN-L6 AC DRIVE 20HP ****XLNT****
ALLEN BRADLEY 1336-BDB-SP30C -- 1336BDBSP30C
ALLEN BRADLEY 1336-B020-EAE-L3 1336 B020 EAE L3 - 20HP AC DRIVE
ALLEN BRADLEY 1336/1336VT DRIVER BOARD 151137 25HP DRIVE 
ALLEN BRADLEY 1300-Y Print I/O Gateway Module 1300Y
Allen Bradley 113325 PC Board Assembly REV 09 - 
Allen Bradley 113325 PC Board Assembly - 
ALLEN BRADLEY 105-C09NZJJOV  105C09NZJJOV
ALLEN BRADLEY 100-B600N 500 HP MOTOR CONTACTOR 120 VOLT COIL
ALLEN BRADLEY * SYSTEM MODULE CRACKED PLASTIC * 8520-S10 SERIES C
AB PLC Trainer Micrologix 1100 soare Training 1763-L16AWA w/ expansion
2711-B 8 Ser F FRN 4.41 PanelView 550 Allen Bradley HMI Touchscreen RS232 Reman
25B-E9P9N104 25BE9P9N104 ALLEN BRADLEY AC DRIVE POWERFLEX 525 7.5 HP 446-660V 3P
2201/02-02 Bently Nevada for Allen Bradley 1771
2014 FACTORY SEALED Allen Bradley 1747-L531 Series E SLC 500 5/03 Processor
2014 Date 2711P-T6C20D8 PanelView P 600 Allen Bradley HMI Perfect Touchscreen
142469  In Box, Allen-Bradley 160-BA04NPS1P1 Speed Controller 2HP 460V 3PH
1 NIB ALLEN BRADLEY 808-E2 808E2 SPEED SWITCH 50 - 200 RPM
1 NIB ALLEN BRADLEY 1771-LI 1771LI LOOP CONTROLLER
1 NIB ALLEN BRADLEY 104-B180ND3 104B180ND3 REVERSING CONTACTOR 120 V SER A
1  ALLEN BRADLEY 810-A27BZ INVERSE TIME RELAY
*SEALED*Allen Bradley 1771-OBD/1771OBD Ser C, Catalog Rev D01, Revision, E01
**SEALED** Allen Bradley 1794-IF4I/1794-IF41/1794IF4I/1794IF41 **WARRANTY**
**SEALED** Allen Bradley 1794-IF4I/1794-IF41/1794IF4I/1794IF41 **WARRANTY**
**SEALED** Allen Bradley 1771-OBD/1771OBD Ser C, Catalog Rev F01 **WARRANTY**
**SEALED** Allen Bradley 1756B/175B Series E Rev 11.004 **WARRANTY**
**SEALED* Allen Bradley 1746-INT4/1746INT4 Thermocouple *WARRANTY*
(5930) Allen Bradley Pneumatic Timing Relay 849-ZAD321