Page 2 - Small footprint —; Table of contents
2 Variable 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 reliability under a wide range of operating conditions. High efficiency Per AHRI 550/590, chillers op...
Page 3 - Heat exchanger features
3 • Machine room cooling requirements associated with air-cooled motors,which dissipate heat to the mechan-ical room. • High noise levels common with air- cooled motors, which radiate noiseto the machine room and adjacentareas. • Shaft alignment problems that occur with open-drive designs during sta...
Page 4 - Model number nomenclature; Quality Assurance; Certified to I; EISMI
4 feature also allows the machine to operate at reduced capacity, rather than shut down, when key safety limits are approached. Chilled liquid reset — Reset can be accomplished manually or automatical-ly from the building management sys-tem. For a given capacity, reset allows operation at slower com...
Page 5 - Physical data
5 23XRV COMPRESSOR AND MOTOR WEIGHTS COMPONENT WEIGHTS LEGEND 23XRV HEAT EXCHANGER WEIGHTS COND — Condenser *Rigging weights are for standard tubes of standard wall thickness (EDE and S pikefin 3, 0.025-in. [0.635 mm] wall). NOTE S : 1. Cooler includes the suction elbow and 1 / 2 the distribution pi...
Page 7 - Options and accessories
7 *Factory-installed.†Field-installed.** S tandard waterbox nozzles are victaulic type. Flanged nozzles are available as an option with either nozzle-in-head type waterboxes ormarine waterboxes. ††Optional marine waterboxes available for 23XRV heat exchangerframes 3-5 only. S tandard waterboxes for ...
Page 8 - 3XRV DIMENSIONS; Dimensions
8 23XRV DIMENSIONS (NOZZLE-IN-HEAD WATERBOX) 23XRV DIMENSIONS (MARINE WATERBOX) *Assumes both cooler and condenser nozzles on same end of chiller. †1 or 3 pass length applies if cooler is a 1 or 3 pass design.NOTE S : 1. S ervice access should be provided per American S ociety of Heat- ing, Refriger...
Page 9 - NOZZLE SIZE; Performance data
9 NOZZLE SIZE 23XRV HEAT EXCHANGER MIN/MAX FLOW RATES* ENGLISH (GPM) *Flow rates based on standard tubes in the cooler and condenser. Minimum flow based on tube velocity of 3 ft/sec (0.91 m/sec); maximum flow based on tube velocity of 12 ft/sec (3.66 m/sec). Consult the factory if variable primary f...
Page 10 - VFD FRAME SIZES; Electrical data
10 VFD FRAME SIZES *Maximum limits only. Additional application limits apply that will reduce these ampacities. AUXILIARY RATINGS* *Factory wired to VFD.†Minimum circuit ampacity of 15 amps. FRAME SIZE MAX INPUT CURRENT * MAX OUTPUT CURRENT * AA 440 442 BA 520 442 BB 520 520 CC 60 8 60 8 ITEM VOLTAG...
Page 11 - Controls
11 Microprocessor controls Microprocessor controls provide the safety, interlock, ca-pacity control, indications and accessibility necessary tooperate the chiller in a safe and efficient manner. Control system The microprocessor control on each Carrier chiller isfactory-mounted, factory-wired, and f...
Page 14 - Control sequence; To start —; CONTROL SEQUENCE
14 Control sequence To start — Local start-up (manual start-up) is initiated by pressing the LOCAL or CCN menu softkey, which is indi-cated on the default international chiller visual control(ICVC) screen. Time schedule 01 or 03, respectively, mustbe in the Occupied mode and the internal 15-minute s...
Page 15 - Typical piping and wiring
15 Typical piping and wiring 1 1 1 6 7 8 TO CHILLED LIQUID PUMP TO CONDEN S ER LIQUID PUMP TO COOLING TOWER FAN 2 1 MAIN COMPRE SS OR MOTOR POWER FROMCOOLINGTOWER FROMLOAD TOCOOLINGTOWER TOLOAD 3 3 9 9 DRAIN 5 4 LEGEND 1 — Disconnect 2 — Unit-Mounted VFD/Control Center 3 — Pressure Gages 4 — Chilled...
Page 16 - Control wiring schematic; 3XRV COMPONENT ARRANGEMENT
16 Control wiring schematic 23XRV COMPONENT ARRANGEMENT LEGEND CCM — Chiller Control Module CCN — Carrier Comfort Network® ICVC — International Chiller Visual Controller GND — Ground
Page 17 - Application data; 3XRV MACHINE FOOTPRINT
17 Application data F E Y Y * B G A VESSELS TYP.0 ’ - 3 ” [76.2mm] ACCESSORYSOLEPLATE 0 ’ -01/2” [1 3 mm] TYP. X X * VESSELS COND. COOLER CL CL CL C D 23XRV MACHINE FOOTPRINT * S ee detail on page 1 8 . 23XRV HEAT EXCHANGER SIZE DIMENSIONS (ft-in.) DIMENSIONS (mm) A B C D E F G A B C D E F G 30-3...
Page 18 - 3XRV ISOLATION WITH ACCESSORY SOLEPLATE PACKAGE
18 Application data (cont) ELASTOMERIC PAD 23XRV ISOLATION WITH ACCESSORY SOLEPLATE PACKAGE TYPICAL ISOLATION STANDARD ISOLATION ACCESSORY SOLEPLATE DETAIL VIEW X-X NOTE S : 1. Dimensions in ( ) are in millimeters.2. Accessory soleplate package includes 4 soleplates, 16 jacking screws and leveling p...
Page 19 - 3XRV NOZZLE ARRANGEMENTS
19 12 11 10 9 8 7 6 5 4 3 2 1 23XRV NOZZLE ARRANGEMENTS NOZZLE-IN-HEAD WATERBOXES FRAME 3 FRAMES 4 AND 5 NOZZLE ARRANGEMENT CODES FOR ALL 23XRV NOZZLE-IN-HEAD WATERBOXES *Refer to certified drawings. PASS COOLER WATERBOXES In Out Arrangement Code * 1 8 5 A 5 8 B 2 7 9 C 4 6 D 3 7 6 E 4 9 F PASS COND...
Page 21 - RELIEF VALVE ARRANGEMENTS
21 23XRV WATERBOX NOZZLE SIZES (Nozzle-In-Head and Marine Waterboxes RELIEF VALVE LOCATIONS * Coolers without optional isolation require 2 relief valves. NOTE: All valves relieve at 1 8 5 psig (1275 kPa). FRAME SIZE PRESSURE psig (kPa) PASS NOMINAL PIPE SIZE (in.) ACTUAL PIPE ID (in.) Cooler Condens...
Page 22 - Vent and drain connections; PRESSURE GAGE LOCATION; ASME stamping; 3XRV RELIEF VALVE DISCHARGE PIPE SIZING; Design pressures; HEAT EXCHANGER MATERIAL SPECIFICATIONS
22 Vent and drain connections Nozzle-in-head waterboxes have vent and drain connec-tions on covers. Marine waterboxes have vent and drainconnections on waterbox shells. Provide high points of the chiller piping system with vents and the low points with drains. If shutoff valves are provid-ed in the ...
Page 23 - Insulation; 3XRV MINIMUM FIELD-INSTALLED INSULATION; Factory insulation —; CONDENSATION VS RELATIVE HUMIDITY*; Minimum fluid loop volume
23 Insulation 23XRV MINIMUM FIELD-INSTALLED INSULATION REQUIREMENTS Factory insulation — Thermal insulation is factory- provided to the following areas:• Cooler (not including waterbox)• Suction line• Compressor and motor• Oil cooling line and oil return system line (oil and refrig- erant lines at o...
Page 24 - Variable Speed Screw Chiller; HVAC Guide Specifications; Part 1 — General; Guide specifications
24 Variable Speed Screw Chiller HVAC Guide Specifications Size Range: 300 to 550 Tons (1055 to 1934 kW) Nominal Carrier Model Number: 23XRV Part 1 — General 1.01 SYSTEM DESCRIPTION A. Microprocessor-controlled liquid chiller shall use a semi-hermetic screw compressor using refrigerantHFC-134a only. ...
Page 25 - Part 2 — Products
25 D. Unit shall be shipped with firmly attached labels that indicate name of manufacturer, chiller model num-ber, chiller serial number, 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 suitabl...
Page 31 - Optional Compressor Discharge Isolation Valve
31 11. Cooler and Condenser Tubes: Contact a local Carrier Representative for othertube offerings. 12. Cooler and Condenser Passes: Unit manufacturer shall provide the cooler and/or condenser with 1, 2 or 3 pass configurationon the water side. 13. Nozzle-In-Head, 300 psig (2068 kPa): Unit manufactur...