Instruction/ maintenance manual of the product 19EX Carrier
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Installation Instructions SAFETY CONSIDERA TIONS Centrifugal liquid chillers are designed to provide safe and reliable service when operated within design specifications. When operating this equipment, use good judgment and safety precautions to avoid damage to equipment and property or injury to personnel.
CONTENTS Page SAFETY CONSIDERA TIONS ...................1 INTRODUCTION ..............................2 General ......................................2 Job Data ....................................2 Equipment Required .........................2 INST ALLA TION .
NIH — Nozzle-In-Head *Motors beginning with ‘‘E’ ’ and open drive motors (F A-JD) cannot be used with size 51-89 or 421-469 compressors. †Open-drive motor codes: ASME ‘U’ ST AMP UNDERWRITERS’ LABORA TORIES ARI (Air Conditioning and Refrigeration Institute) PERFORMANCE CERTIFIED (60 Hz Only) Fig.
RIG MACHINE COMPONENTS — Refer to instructions on page 5, Fig. 6-8, and Carrier certified drawings for ma- chine component disassembly . IMPOR T ANT : Only a qualified service technician should disassemble and reassemble the machine. After reas- sembly , the machine must be dehydrated and leak tested.
COMPONENT DISASSEMBL Y T o Separate Compressor from the Machine 1. Make sure to check that the machine is at atmospheric pressure before disassembly . 2. Since the center of gravity is high on 17EX machines, the motor MUST be removed before rigging the machine.
NOTES: 1. Each chain must be capable of supporting the maximum weight of the machine. 2. = the approximate center of gravity . 3. Maximum possible weight is 88,500 lb (40 166 kg) which includes a maxi- mum of 6,000 lb (2 721 kg) of HFC-134a refrigerant in the storage tank.
NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section. F i g .6—T ypical T op View (19EX Shown) NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.
T o Separate Cooler From Utility V essel 1. Remove condenser (see previous section). 2. Cut copper lines (Fig. 6, Items 6 and 8). 3. Unbolt liquid refrigerant line at flange (Fig. 7, Item 3). 4. Connect rigging to all four corners of the cooler before lifting the unit.
NOTES: 1. Certified drawings available upon request. 2. Service access should be provided per American Society of Heating, Refrigeration, and Air Con- ditioning Engineers (ASHRAE) 15, latest edition, National Fire Protection Association (NFP A) 70, and local safety codes.
T able 1 — 17/19EX Heat Exchanger , Economizer/Storage V essel, Piping, and Pumpout Unit Weights* COOLER SIZE† COOLER TOT AL WEIGHT COOLER CHARGE ECONOMIZER/ STORAGE VESSEL** ECONOMIZER REFRIGERAN.
T able 3 — Additional Cooler W eights* COOLER FRAME W A TERBOX TYPE NUMBER OF P ASSES DESIGN MAXIMUM W A TER PRESSURE ADDITIONAL DR Y WEIGHT ADDITIONAL W A TER WEIGHT psig kPa lb kg lb gal kg L 3 NI.
T a b l e6—T otal 19EX Motor Weights (60 Hz) MOTOR SIZE LOW VOL T AGE MEDIUM VOL T AGE HIGH VOL T AGE lb kg lb kg lb kg DB 1484 673 1420 644 NA NA DC 1496 678 1478 670 NA NA DD 1514 687 1503 682 209.
T able 10A — 17EX Motors — T otal Weight, Lbs (English) ENCLOSURE TYPE HERTZ VOL T AGE SIZE (HP) Open-Drip Proof (ODP) 60 Hz F A (1250) FB (1500) FC (1750) FD (2000) 2400 4836 5721 5900 7160 3300 .
T able 1 1 — Marine W aterbox Cover W eights* HEA T EXCHANGER SIZE DESIGN MAXIMUM W A TER PRESSURE COOLER CONDENSER psi kPa lb kg lb kg 3 1-3 3 150 1034 1667 756 1092 495 300 2068 2280 1034 1436 651.
COOLER SIZES DIMENSIONS AB C ft-in. mm ft-in. mm ft-in. mm 31-33 8-8 1 ⁄ 2 2654 8-10 2692 4- 8 1422 41-44 9-3 2819 9- 4 1 ⁄ 2 2858 4-1 1 1 ⁄ 4 1505 NOTES: 1. Dimensions in ( ) are in mm. 2. 1 inch = 25.4 mm. 3. All dimensions approximately ± 1 ⁄ 2 inch.
SOLEPLA TE ISOLA TION TYPICAL ISOLA TION ACCESSORY ISOLA TION SOLEPLA TE DET AIL SECTION A-A NOTES: 1. Dimensions in ( ) are in millimeters. 2. Accessory soleplate package includes 4 soleplates, 16 jacking screws and leveling pads. Requires isolation package.
Connect Piping INST ALL W A TER PIPING TO HEA T EXCHANGERS — Install piping using job data, piping drawings, and proce- dure outlined below . A typical piping installation is shown in Fig. 12. Factory-supplied insulation is not flammable but can be damaged by welding sparks and open flame.
NOZZLE-IN-HEAD W A TERBOXES COOLER W A TERBOX Pass In Out Arr . Code 1 85 A 58 B 2 79 C 46 D 3 76 E 49 F CONDENSER W A TERBOX Pass In Out Arr . Code 1 11 2 P 21 1 Q 2 10 12 R 13 S 3 10 3 T 11 2 U NOTES: 1. Frame 5 condenser available in 1 and 2 pass only .
INST ALL W A TER TO OIL COOLER ON F A COMPRE- SORS — On F A compressors, water must be piped to the oil cooler heat exchanger (located under the suction pipe to the compressor). The water supply may be either city water or chilled water . Pipe city water to an open sight drain.
INST ALL VENT PIPING TO RELIEF DEVICES — The 17/19EX chiller is factory equipped with relief devices on the cooler and utility vessels. Refer to Fig. 2 and 3, and T able 13 for size and location of relief devices, as well as information that will help determine pipe size.
Insulate Motor T erminals and Lead W ire Ends — Insulate compressor motor terminals, lead wire ends, and electrical wires to prevent moisture condensation and electrical arc- ing. For low-voltage units (up to 600 v), insulate the elec- trical terminals as follows: 1.
T able 14 — Individual Component Ratings POWER SOURCE ITEM A VERAGE kW DESIGN CENTER VOL T AGE SUPPL Y V -PH-HZ FLA LRA 1* (17EX Only) Seal Leakage Pump 0.23 1 15 1 15-1-50/60 4.78 21.7 Motor Space Heater 0.50 1 15 1 15-1-50/60 4.35 4.35 1† Control Module and Actuator 0.
*Indicates chilled water pump control contacts or run status contacts. †Indicates condenser water pump control contacts. **Indicates tower fan relay contacts.
LEGEND PIC — Product Integrated Control SMM — Starter Management Module Required Power Wiring Required Control Wiring Options Wiring Notes on following page.
NOTES: I GENERAL 1.0 Starters shall be designed and manufactured in accordance with Carrier Engineering requirement Z-375. 1.1 All field-supplied conductors, devices and the field-installation wiring, termination of conductors and devices, must be in compliance with all applicable codes and job specifications.
LEGEND Factory Wiring Field Wiring Oil Pump T erminal Power Panel Component T erminal Fig. 19 — Oil Pump Wiring 19EX SHOWN LEGEND 1— Chilled W ater Pump Starter 2— Condenser W ater Pump Starter .
CARRIER COMFOR T NETWORK INTERF ACE — The Carrier Comfort Network (CCN) communication bus wiring is supplied and installed by the electrical contractor (if re- quired by jobsite prints). It consists of shielded, 3-conductor cable with drain wire. The system elements are connected to the communication bus in a daisy chain arrangement.
Install Field Insulation Protect insulation from weld heat damage and weld splat- ter. Cover with wet canvas cover during water piping installation. When installing insulation at the job site, insulate the fol- lowing components (see Fig.
LEGEND Factory Wiring Field Wiring *Field-supplied terminal strip must be located in the control center . †Switches S1 and S2 are factory set on PSIO modules.
FRONT VIEW PLAN VIEW — Area must be factory or field insulated — Area to be field insulated, if ambient conditions require. NOTE: W aterbox covers are to be insulated by the contractor . IMPORT ANT : 17EX insulation is identical to the 19EX insulation shown above.
INST ALLA TION ST ART -UP REQUEST CHECKLIST Machine Model Number: 17/19EX Serial Number: To : Attn: Date Project Name Carrier Job Number The following information provides the status of the chiller installation. YES/NO (N/A) DA TE TO BE COMPLETED 1. The machine is level.
TESTING YES/NO DA TE TO BE COMPLETED 1. The cooling tower fan has been checked for blade pitch and proper operation. 2. The chilled water and condenser water lines have been: a. Filled b. T ested c. Flushed d. V ented e. Strainers cleaned 3. The chilled water and condenser water pumps have been checked for proper rotation and flow .
An important point after buying a device Carrier 19EX (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 19EX yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 19EX - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 19EX you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 19EX will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 19EX, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 19EX.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 19EX. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 19EX along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
