Carrier EVERGREEN 23XRV manuale d’uso

Copyright 2010 Carrier Cor poration Form 23XR V -3PD Carrier’ s Ev ergreen ® 23XR V chiller is the world’ s first integ rated v ariable speed, water-cooled, screw chiller . It incorp or ates significant break- throughs in water-cooled chiller tech- nology to provide e xcellent reliability and achie v e superior efficiencies at true operating c[...]

2 V ariable speed capacity control elimi- nates slide valves, their associated loss- es, and their potential failure modes. Component count (both rotating and total) has been minimized assuring maximum relia bility under a wide range of operating conditions. High efficiency Per AHRI 550/590, chillers operate at design conditions less than one perce[...]

3 • Machine room cooling re quirements associated with air-cooled motors, which dissipate heat to the mechan- ical room. • High noise levels common with air- cooled motors, which radiate noise to the machine room and adjacent areas. • Shaft alignment problems that occur with open-drive designs during start- up and opera tion, when equipmen t [...]

4 feature also allows the machine to operate at reduced capacity, rather than shut down, when key safety limits are approached. Chilled liquid rese t — Reset can be accomplished manually or automatical- ly from the building management sys- tem. For a given capacity, reset allows operation at slower compresso r speeds, saving ener gy when war mer [...]

5 23XRV COMPRESSOR AND MOTOR WEIGHTS COMPONENT WEIGHTS LEGEND 23XR V HEA T EXCHANGER WEIGHTS COND — Condenser *Rigging weigh ts are for standard tube s of standard wall thickness (EDE and S pikefin 3, 0.025- in. [0.635 mm] wall). NO TE S : 1. Cooler incl udes the suction elbo w and 1 / 2 the distri b ut ion piping weight. 2. Condens er includes f[...]

6 ADDITIONAL WEIGHTS FOR 23XR V MARINE W A TERBOXES* 150 psig (1034 kPa) MARINE W A TERB OXES 300 psig (2068 kPa) MARINE W A TERB OXES *Add to cooler and condenser weights f or tota l weights. Cooler and condenser weights may be f ound in the 23XR V Heat Exchanger Weights tab le on page 5. The first dig it of the heat e xch anger code (first column[...]

7 *F actor y-installed. †Field-installed. ** S tandard waterbox nozzles are vi ctaulic type. Flanged nozzles are av ailable as an option with either nozzle-in-head type waterbo xes or marine waterbox es. ††Optional marine waterbox es av ailable for 23XR V heat exchanger frames 3-5 only . S tandard waterbo xes f or 23XR V are nozzle-in-head ty[...]

8 23XRV DIMENSIONS (NOZZLE-IN-HEAD W A TERBOX) 23XRV DIMENSIONS (MARINE W A TERBOX) *Assumes both cooler and condenser nozzles on same end of chiller . †1 or 3 pass length applies if c ooler is a 1 or 3 pa ss design. NO TE S : 1. S ervice access should be provided per America n S ociety of Heat- ing, Refrigerating, and Air Conditioning Engineers [...]

9 NOZZLE SIZE 23XR V HEA T EXCHANGER MIN/MAX FLOW RA TES* ENGLISH (GPM) *Flow rates based on standard tubes in the c ooler and condenser . Minimum flow based on tube velocity of 3 ft/sec (0.91 m/sec); maximum flow based on tube v elocity of 12 ft/sec (3.66 m/ sec). Consult the factory if variable primar y flow . SI (L/s) *Flow rates based on standa[...]

10 VFD FRAME SIZES *Maximum limits only . Additi onal applicatio n limits apply that will reduce these ampacities. AUXILIAR Y RA TINGS* *F actor y wired to VFD . †Minimum circuit ampacity of 15 amps. FRAME SIZE MAX INPUT CURRENT * MAX OUTPUT CUR RENT * AA 440 442 BA 520 442 BB 520 520 CC 60 8 60 8 ITEM V OL T A GE MAXIMUM PRO TECTIVE DEVICE SIZE [...]

11 Micropr ocessor contr ols Microprocessor controls provide the safety, interlock, ca- pacity control, indications and accessibility necessary to operate the chiller in a safe and efficient manne r . Control system The microprocessor control on each Carrier chiller is factory-mounted, factory-wired, and factory-tested to ensure machine protection [...]

12 Contr ols (cont) CONTROL P ANEL DISPLA Y (Front View) ICVC ENGLISH DI SPLA Y IN SI UNITS CONTROL P ANEL DISPLA Y (Front View) ICVC CHINESE D ISPLA Y IN METRIC UNIT S[...]

13 BLACK WHITE RED BLACK WHITE RED DRAIN WIRE DRAIN WIRE BLACK WHITE RED BLACK WHITE RED DRAIN WIRE GROUND DRAIN WIRE NO TE: Field-supplied ter minal strip must be located in control panel. LEGEND CCM — Chiller Control Module F actor y Wiring Field Wiring CCN COMMUNICA TION WIRING FOR M UL TIPLE CHILLERS (TYPICAL) a23-1649[...]

14 Contro l sequence To s t a r t — Loca l start-up (m anual st art-up) is initiated by pressing the LOCAL or CCN menu softkey, which is indi- cated on the default inter nati onal chiller vis ual control (ICVC) screen. Time schedule 01 or 03, respectively, must be in the Occupied mode and the inter nal 15-minute start- to-start and the 1-minute s[...]

15 T ypical piping and wiring 1 1 1 6 7 8 TO CHILLED LIQUID PUMP TO CONDEN S ER LIQUID PUMP TO COOLING T OWER FAN 2 1 MAIN COMPRE SS OR MOTOR POWER FROM COOLING TOWER FROM LOAD TO COOLING TOWER TO LOAD 3 3 9 9 DRAIN 5 4 LEGEND 1— Disconnect 2— Unit-Mounted VFD/Control Center 3— Pressure Gages 4— Chilled Liquid Pump 5— Condenser Liquid Pum[...]

16 Contr ol wiring schematic 23XRV CO MPONENT ARRANGEMENT LEGEND CCM — Chiller Control Module CCN — Carrier Comfor t Network® ICVC — Internationa l Chiller Visual Controller GND — Gro und[...]

17 Application data F E Y Y * B G A VESSELS TYP . 0 ’ - 3 ” [76.2mm] ACCESSOR Y SOLEPLA TE 0 ’ -01/2” [1 3 mm] TYP . X X * VESSELS COND . COOLER C L C L C L C D  23XRV MACHINE FOOTPRINT * S ee detail on page 1 8 . 23XR V HEA T EXCHANGER SIZE DIMENSIONS (ft-in.) DIMENSIONS (mm) A BCDE F G A B C D E F G 30-32 12-10 3 / 4 5-4 1 / 4 0 0-3[...]

18 Application data (cont) ELASTOMERIC P AD 23XRV ISOLA TION WITH ACCESSOR Y SOLEPLA TE P ACKAGE TYPICAL ISOLA T ION ST ANDARD ISOLA TION ACCESSORY SOLEPLA TE DET AIL VIEW X-X NO TE S : 1. Dimensions in ( ) are in millimeters. 2. Accessor y soleplate package includes 4 so leplates, 16 jacking scre ws and leveling pads. Requires isolation pac kage. [...]

19 12 11 10 9 8 7 6 5 4 3 2 1 23XRV NOZZLE ARRANGEMENTS NOZZLE-IN -HEAD W A TERBOXES FRAME 3 FRAMES 4 AND 5 NOZZLE ARRANGEMENT CODES FOR ALL 23XRV NOZZLE-I N-HEAD W A TERBOXES *Refer to certified drawings . PA S S COOLER W A TERBO XES In Out Arrangement Code * 1 8 5A 5 8 B 2 79 C 46 D 3 76 E 49 F PA S S CONDENSER W A TERBO XES In Out Arrangement Co[...]

20 Application data (cont) 23XR V NOZZLE ARRANGEMENTS (cont) MARINE W A TERBOXES FRAME 3 NOZZLE ARRANGEMENT CODES PA S S COOLER W A TERBO XES PA S S CONDENSER W A TERBOXES In Out Arrangement Code In Out Arrangement Code 1 8 5A 1 —— — 5 8 B— — — 2 79 C 2 10 12 R 46 D 1 3 S 3 76 E 3 —— — 49 F — — — FRAMES 4, AND 5 NOZZLE ARRAN[...]

21 23XRV W A TERBOX NOZZLE SIZES (Nozzle-In-Head and Marine W aterboxes RELIEF V AL VE LOCA TIONS * Coolers without optional isolat ion require 2 relief valves . NO TE: All valv es reliev e at 1 8 5 psig (1275 kPa). FRAME SIZE PRESSURE psig (kPa) PA S S NOMINAL PIPE SIZE (in.) ACTU AL PIPE ID (in.) Cooler Condenser Cooler Condenser 3 150/300 (1034/[...]

22 V ent and drain connections Nozzle-in-head waterboxes have vent and drain connec- tions on covers. Marine waterboxes have vent and drain connections on waterbox shells. Provide high points of the chille r piping system with vents and the low points with drains. If shutoff valves are provid- ed in the main liquid pipes near the unit, a min imal a[...]

23 Insulation 23XR V MINIMUM FIELD-INST ALLED INSULA TION REQUIREMENTS Factory insulation — Ther mal insulation is factory- provided to the following areas: • Cooler (not including waterbox) • Suction line • Compressor and motor • Oil cooling line and oil retur n system line (oil and refrig- erant lines at or near evapo rator pressure are[...]

24 V ariable Speed Scre w Chiller HV AC Guide Specifications Size Range: 300 to 550 T ons (1055 to 1934 kW) Nominal Carrier Model Number: 23XR V Part 1 — General 1.01 SYSTEM DESCRIPTION A. Microprocessor -controlled l iquid chiller shall use a semi-her metic screw compressor using refrigerant HFC-134a only. Chiller refrigerant shall not have a pl[...]

25 D. Unit sh all be shipped with fir mly attached labels that indicate name of manufacturer , chiller model num- ber , chiller serial numb er , and refrigerant used. E. If the unit is to be exported, the manufacturer shall provide sufficient protection against sea water corro- sion, making the unit suitable for shipment in a standard open top ocea[...]

26 equipment to dissipate the motor heat as per the following for mula: Btuh = (FLkW motor) (0.05) (3413) Btuh = (FLkW motor) (171) and, alter nately T ons = Btuh/12,000 The additional piping, va lves, air -handling equipment, insulation, wiring, switchgear changes, ductwork, and coo rdination with other trades shall be the responsibility of the me[...]

27 input ter minals as the point of common cou- pling (PCC). b. The VFD full load effici ency shall meet or exceed 97% at 100% VFD rated ampacity. c. Active rectifier shall regulate unity displace- ment power factor to 0.99 or higher . d. V oltage boost capability to provide full mo tor voltage at reduced line voltage conditions. e. The VFD shall f[...]

28 liquid refrigerant to a reduced temperature, thereby increasing the refrigeration cycle efficiency. F . Refrigerant Flow Control: T o improve part load efficiency, liquid refrigerant shall be metered from the condenser to the cooler using a float-type metering valve to maintain the proper liquid level of refrigerant in the heat exchangers under [...]

29 displayed infor ming the operator that the chiller is operating in ramp loading mode. l. Chilled Water Reset: The control center shall allow re set of the chilled water temperature set point based on any one of the following criteria: 1) Chilled water reset base d on an exter nal 4 to 20 mA signal. 2) Chilled water reset based on a remote temper[...]

30 manual rotation of the lead chiller and a stag- gered restart of the chillers after a power fail- ure. The lead/lag system shall include load balancing if configured to do so. H. Electrical Requirements: 1. Electrical contractor shall supply and in stall main electrical power line, disconnect switches, circuit breakers, and electrical protection[...]

31 11. Cooler and Condenser T ubes: Contact a local Carrier Representa tive for other tube offerings. 12. Cooler and Condenser Passes: Unit manufacturer shall provide the cooler a nd/ or condenser with 1, 2 or 3 pass co nfiguration on the water side. 13. Nozzle-In-Head, 300 psig (2068 kPa): Unit manufacturer shall fur nish nozzle-in-head style wate[...]

Manufacturer reserves the right to dis continue, or change at any time, specifications or designs without notice and without inc urring obligations. Pg 32 Catalog No . 04-52230002-01 Printed in U . S .A. F or m 23XR V -3PD Replaces: 23XR V -2PD S ection 9 Ta b 9 a Carrier Cor poration • S yracuse, New Y or k 13221 910 5-10[...]