Carrier 17EX User Manual

Carrier’s Externally Geared 17EXOpen Drive Centrifugal Liquid Chill-ers operate with environmentally safeHFC-134a. These chillers combineindustrial qu

Physical dataRIGGING AND OPERATING WEIGHTS17EX HEAT EXCHANGER, ECONOMIZER/STORAGE VESSEL, PIPING, AND PUMPOUT UNIT WEIGHTS*COOLERSIZE†COOLERTOTALWEIGH

RIGGING AND OPERATING WEIGHTS (cont)ADDITIONAL CONDENSER WEIGHTS*COMPONENTHEAT EXCHANGERSIZEWATERBOX TYPENUMBER OFPASSESDESIGN MAXIMUMWATER PRESSUREAD

Dimensions DIAM2'-6 1/2" (775)1'-0" (305) 12'-5"(3785)2'-0" (610)MINIMUMSERVICEAREA22'-10"(6960) 17

Performance dataComputerized ratingsSince Carrier’s 17EX chiller has numerous componentcombinations and can meet a wide variety of required op-erating

Electrical data (cont)Compressor motor controllersCompressor motors, as well as controls and accessories,require starting equipment systems specificall

Application dataRange of applicationThe 17EX chiller is designed for standard water (or brine)chilling applications using HFC-134a.ASME stampingAll 17

Application data (cont)Vent and drain connectionsAll vent and drain connections are found in the waterboxshell. Vent and drain connection size is 1-in

RELIEF-VALVE DISCHARGE PIPINGRELIEF VALVELOCATIONHEAT EXCHANGERSIZEREQUIRED C FACTORNOMINAL OUTLETPIPE SIZE (in.)RATED RELIEF PRESSURECooler Condenser

Application data (cont)HEAT EXCHANGER MINIMUM/MAXIMUM FLOW RATES* (cont)ENGLISH (Gpm)FRAME SIZECONDENSERSIZE1 PASS 2 PASS 3 PASSMin Max Min Max Min Ma

CHILLER CONTACT SURFACES (cont)SOLEPLATE ISOLATION7/8-9UNC-4 HOLESFOR JACKING SCREWS 1'-2"(355.6)0'-1 1/2" (38.1) 2'-4"

Application flexibility/two-stagecompressor — By providing a wideassortment of compressor and geararrangements as well as 2 stagesof compression, the 1

Application data (cont)NOZZLE ARRANGEMENTSNOZZLE-IN-HEAD WATERBOXESCOOLER WATERBOXPass In OutArr.Code185 A58 B279 C46 D376 E49 FCONDENSER WATERBOXPass

ControlsMicroprocessor controlsMicroprocessor controls provide the safety, interlock, ca-pacitycontrol, andindications necessary tooperate the chiller

Controls (cont)MICROPROCESSOR CONTROL CENTERCONTROL CENTER WITH OPTIONS (FRONT VIEW)LEGEND1—Processor Module (PSIO). The PSIO is theBrain of the Produ

LOCAL INTERFACE DEVICE (LID) TYPICAL DISPLAY PANELSDefault Display — Displays information most commonly required forchiller operating logs. Two- line

Controls (cont)LOCAL INTERFACE DEVICE (LID) TYPICAL DISPLAY PANELS (cont)NEXT PREVIOUS SELECT EXIT17EX CHLR

Control sequenceTo start: Local start-up (manual start-up) is initiated bypressing the LOCAL menu softkey which is indicated onthe default local inter

Typical control wiringLEGENDBRG — BearingC—ContactorCB — Circuit BreakerCH — ChannelCOM — CommunicationsCOMP’R — CompressorCOND — CondenserDETR — Dete

IMPORTANT: Wiring shown is typical and not intended to showdetail for a specific installation. Refer to certified field wiringdiagrams.LEGENDPH — PhasePR

Typical field wiring(medium-voltage machine shown)IMPORTANT: Wiring shown is typical and not intended to show detailfor a specific installation. Refer t

NOTES FOR TYPICAL FIELD WIRINGNOTES:I GENERAL1.0 Starters shall be designed and manufactured in accordance withCarrier Engineering requirement Z-375.1

Model number nomenclatureASME‘U’ STAMPARI (Air Conditioningand RefrigerationInstitute)PERFORMANCECERTIFIED(60 Hz Only)NIH — Nozzle-In-Head*Any availab

Typical piping and wiring17EX CHILLER WITH FREE-STANDING STARTER2TO CHILLED WATER PUMPTO CONDENSER WATER PUMPTO COOLING TOWER FANMAINPOWER891112345611

Guide specificationsOpen Drive Centrifugal ChillerSize Range: 1500 to 2250 Tons(5820 to 7910 kW) NominalCarrier Model Number: 17EX (with External Gear)

Guide specifications (cont)B. Compressor:1. Compressor shall be high-performance centrifu-gal, two-stage, and externally geared.2. Compressors shall be

3. Mechanical Design Requirements:a. The rotor cage shall be constructed of cop-per or copper alloy. Aluminum rotor bars arenot acceptable. All rotor

Guide specifications (cont)F. Cooler and Condenser:1. Cooler and condenser shall be in separate shells.Heatexchangers shall be fabricatedwith high per-

2. The default standard display screen shall simul-taneously indicate the following information:a. Date and time of dayb. 24-character primary system

Guide specifications (cont)shall be energized, and the tower fan control isenabled. The controls wait a minimum of 15 sec-onds(maximum, 5 minutes)to ve

L. Diagnostics and Service:1. The control system shall execute a series of pre-start checks whenever a start command is receivedto determine if pressu

Guide specifications (cont)Q. Start-up:1. The chiller manufacturer shall provide a factory-trained representative, employed by the chillermanufacturer,

2. Multi-Pass Heat Exchangers:One, 2, and 3 pass heat exchangers are availablefor all heat exchanger sizes with the exception ofcondenser sizes 55-57,

Features/Benefits (cont)HEAT EXCHANGERS• ASME stamp on both refrigerant and water-sidesof heat exchangers for increased reliability• Optional marine wa

Guide specifications (cont)14. Totally Enclosed Water-to-Air Cooled (TEWAC)Motor Enclosure:a. The heat exchanger for the TEWAC enclo-sure shall be doub

The heat exchangers feature:Pressure-tested vessels — Eachheat exchanger (water-side) is hydro-statically tested at 150% of designpressure. The entire

Features/Benefits (cont)Heat supplies the energy requiredfor boiling and is obtained from thewater (or brine) flowing through thecooler tubes. When heat

TYPICAL OPEN-DRIVE COMPRESSOR COMPONENTSLEGEND1—Variable Inlet Guide Vanes (Hidden)2—First-Stage Impeller3—Second-Stage Impeller4—Front Journal Bearin

Options and accessoriesITEM OPTION* ACCESSORY†Thermal Insulation XMulti-Pass Heat Exchangers XAutomatic Hot Gas Bypass XControls Option Module X.028 o

Chiller components1 2 3 4 5 6 7 8 9 10 11 12 13 1