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Start-Up and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ABBREVIATIONS AND EXPLANATIONS . . . . . . . . . . 3
Required Publications . . . . . . . . . . . . . . . . . . . . . . . . . 3
IDENTIFYING DRIVE COMPONENTS . . . . . . . . . . . . . 3
Opening the VFD Access Door . . . . . . . . . . . . . . . . . . 3
Drive Assembly Catalog Number . . . . . . . . . . . . . . . . 3
Components and Physical Data . . . . . . . . . . . . . . . . . 4
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Alternate Wire Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Verify Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Configure the VFD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Commissioning the Unit . . . . . . . . . . . . . . . . . . . . . . . 9
Check Internal Jumpers . . . . . . . . . . . . . . . . . . . . . . . 9
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting the Drive . . . . . . . . . . . . . . . . . . . . 11
Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Servicing the Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Part Identification and Location . . . . . . . . . . . . . . . . 18
APPENDIX A - WIRING SCHEMATICS . . . . . . . . . . 21

SAFETY CONSIDERATIONS

Centrifugal and screw compressor liquid chillers are designed to
provide safe and reliable service when operated within design
specifications. When operating this equipment, use good judg-
ment and safety precautions to avoid damage to equipment and
property or injury to personnel.
Be sure you understand and follow the procedures and safety pre-
cautions contained in the chiller instructions as well as those listed
in this guide.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53190084-01
Page
Printed in U.S.A.
Form 19-23-10SS
Rockwell PowerFlex 755 VFD Option
Failure to follow these procedures will result in severe personal
injury or death.
ONLY QUALIFIED electrical personnel familiar with the
construction and operation of this equipment and the hazards
involved should install, adjust, operate, or service this equip-
ment.
READ AND UNDERSTAND this manual and other applica-
ble manuals in their entirety before proceeding. Failure to ob-
serve this precaution could result in severe bodily injury or loss
of life.
DO NOT install modification kits with power applied to the
drive. Disconnect and lock out incoming power before at-
tempting such installation or removal. Failure to observe this
precaution could result in severe bodily injury or loss of life.
UNUSED WIRES in conduit must be grounded at both ends to
avoid a possible shock hazard caused by induced voltages.
Also, if a drive sharing a conduit is being serviced or installed,
all drives using this conduit should be disabled to eliminate the
possible shock hazard from cross-coupled motor leads. Failure
to observe these precautions could result in bodily injury.
DO NOT VENT refrigerant relief valves within a building.
Outlet from rupture disc or relief valve must be vented out-
doors in accordance with the latest edition of ANSI/
ASHRAE 15 (American National Standards Institute/Ameri-
can Society of Heating, Refrigerating, and Air-Conditioning
Engineers). The accumulation of refrigerant in an enclosed
space can displace oxygen and cause asphyxiation.
PROVIDE adequate ventilation in accordance with ANSI/
ASHRAE 15, especially for enclosed and low overhead spac-
es. Inhalation of high concentrations of vapor is harmful and
may cause heart irregularities, unconsciousness, or death. Mis-
use can be fatal. Vapor is heavier than air and reduces the
amount of oxygen available for breathing. Product causes eye
and skin irritation. Decomposition products are hazardous.
DO NOT USE OXYGEN to purge lines or to pressurize a
chiller for any purpose. Oxygen gas reacts violently with oil,
grease, and other common substances.
NEVER EXCEED specified test pressures. VERIFY the al-
lowable test pressure by checking the instruction literature and
the design pressures on the equipment nameplate.
DO NOT USE air for leak testing. Use only refrigerant or dry
nitrogen.
DO NOT VALVE OFF any safety device.
BE SURE that all pressure relief devices are properly installed
and functioning before operating any chiller.
THERE IS A RISK OF INJURY OR DEATH by electrocu-
tion. High voltage may be present on the motor leads even
though the motor is not running. Open the power supply dis-
connect before touching motor leads or terminals.
Pg 1
19XRV, 23XRV
with PIC6 Controls
DANGER
1-22
Replaces: 19-23-8SS

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Summary of Contents for Carrier 19XRV

  • Page 1: Table Of Contents

    19XRV, 23XRV with PIC6 Controls Rockwell PowerFlex 755 VFD Option Start-Up and Service Instructions CONTENTS DANGER Page Failure to follow these procedures will result in severe personal SAFETY CONSIDERATIONS ....1 injury or death.
  • Page 2 WARNING CAUTION Failure to follow these procedures may result in personal inju- Failure to follow these procedures may result in personal inju- ry or death. ry or damage to equipment. DO NOT USE TORCH to remove any component. System TO AVOID an electric shock hazard, verify that the voltage on contains oil and refrigerant under pressure.
  • Page 3: Introduction

    INTRODUCTION WARNING The Carrier VFD option Start-Up and Service Manual is intended for trained and qualified service personnel and is to be used during DC bus capacitors retain hazardous voltages after input power start-up, operation, and maintenance of Rockwell/Allen-Bradley has been disconnected. After disconnecting input power, wait PF755L drive.
  • Page 4: Components And Physical Data

    See Fig. 8 for the dimensions of Frames 6 and 7 for 19XRV Components and Physical Data chillers. The 19XRV chillers use the Allen-Bradley PF755 Frame 6 drive The 23XRV chiller uses the Frame 7 drive for 335-amp and 455-...
  • Page 5 LEGEND NAME DESCRIPTION Power Terminals R/L1, S/L2, T/L3, U/T1, V/T2, W/T3 PE Grounding Studs Terminating point to chassis ground for incoming motor shield DC Bus and Brake Terminals +DC, –DC, BR1, BR2 PE-A and PE-B MOV and CMC Jumper Wires DC+ and DC–...
  • Page 6 36.00 REF 22.00 40.00 SIDE VIEW FRONT VIEW NOTE: Dimensions shown in inches. Fig. 8 — 19XRV Enclosure Dimensions — Frames 6 and 7 a19-2011 NOTE: Dimensions shown in inches. Fig. 9 — 23XRV Enclosure Dimensions — Frame 7...
  • Page 7: Start-Up

    Serial Number 4. From the HMI control panel screen: CAUTION a. Carrier Part Number and Revision b. Software Number When working with the Drive Explorer, never use the Rotate function as the motor will immediately start and severe com- pressor damage could result.
  • Page 8: Configure The Vfd

    Configure the VFD All configurations required by the VFD are supplied by the HMI through the VFD Gateway. The 19XRV, 23XRV Std Tier VFD can operate with PIC III and PIC6. Any configuration changes necessary and possible are made on the HMI screens. A complete set of configurations is transmitted to the VFD each time the controls are powered up.
  • Page 9: Commissioning The Unit

    8. Take a final thermal measurement of the capacitor bank Commissioning the Unit and power after finalizing the installation to ensure all The commission procedure is as follows: connections are good. If the chiller has been stored outdoors, allow at least 24 hours 9.
  • Page 10 IP Connector Jumper J2 Safety enable jumper. Removed when SAFETY ENABLE safety option is installed. NOTE: For standard Carrier PF755 application the jumper is to stay in place. Jumper J1 Hardware enable jumper. Removed HARDWARE ENABLE when a hardware enable configuration is utilized.
  • Page 11: Service

    Table 4). The detected fault message is maintained on the display has been disconnected. After disconnecting input power, wait until it is cleared by pressing the RESET softkey. See the 19XRV five (5) minutes for the DC bus capacitors to discharge and...
  • Page 12 TorqPrv Spd Band See VFD Fault Code 15 See VFD Fault Code 15 The current in one or more phases has For 19XRV, check Motor Current % Imbalance in Output PhaseLoss been lost or remains below a preset level. CFGUMVFD (PIC6) screen.
  • Page 13 Table 5 — PIC6 Powerflex 755 Fault Code Descriptions and Corrective Actions (cont) 23XRV 19XRV FAULT FAULT FAULT FAULT TYPE DESCRIPTION CORRECTIVE ACTION CODE STATE STATE Check for high entering water temperature or low Drive Overload Drive is overloaded. condenser water flow. Check current settings in CFGUMVFD (PIC6) screen.
  • Page 14: Main Control Board (Mcb) Components

    DPI PORT 02 (COMPUTER PORT) Allen-Bradley DIGITAL INPUT TERMINAL BLOCKS (SLOTS 04 & 05) ETHERNET/IP ADDRESS SWITCHES DIGITAL OUTPUT TERMINAL BLOCKS (SLOTS 04 & 05) a19-1844 EMBEDDED ETHERNET/IP PORT MCB I/O TERMINALS (AUX FAULT / HIGH PRESSURE FAULT / ENABLE INPUT) Fig.
  • Page 15: Servicing The Drive

    (hooks, bolts, lifts, slings, chains, etc.) must be prop- erly sized and rated to safely lift and hold the weight of the drive while removing it. For 19XRV chillers, see Fig. 22. For 23XRV chillers, see Fig. 23. The drive weights are as follows:...
  • Page 16 DRIVE RIGGING ACCESS DRIVE WIDTH + 4 IN. DRIVE RIGGING ACCESS 2 IN. 2 IN. DRIVE POSITIONED FOR VERTICAL LIFT DRIVE EXTENDS BEHIND MAIN ENCLOSURE SUPPORT FROM BELOW SIDE VIEW FRONT VIEW Fig. 22 — 19XRV Enclosure Access for Removing Drive...
  • Page 17: Rigging The Enclosure

    MOUNTING PLATE The dimensions and weights specified must be taken into consid- eration when removing the enclosure. For 19XRV chillers, the to- tal weight for Frames 6 and 7, including drive weight and enclo- 0.45-0.67 N-m sure, is 720 lb. The 23XRV chiller enclosure, including all compo- (4.0-6.0 lb.-in.)
  • Page 18: Replacing Chill Plate Fan And Internal Fan

    MOUNTING PLATE GATEWAY 2.6 N•m (23 lb•in.) INTERNAL FAN A19-1840 2.6 N•m (23 lb•in.) Fig. 29 — Internal Fan, Frame 6 A19-1820 Frame 7 (chill plate fan kit Z1P-FAN-A7-A): 1. Disconnect power to the drive. Before removing the enclo- Fig. 27 — Mount COMM Card Plate to Drive sure, open the access door on the front of the drive.
  • Page 19 — Input Circuit Breaker — 15 amp Control Circuit Breaker — Control Transformer — Control Fuses — Control Relays (CR1 - CR6) Fig. 31 — 19XRV Assembly Parts FRONT VIEW – DOORS REMOVED a23-1653 LEGEND — Input Circuit Breaker — Power Module —...
  • Page 20 a19-1848 LEGEND 1 — PF750 Series, Precharge Kit IMPORTANT: When replacing the Main Control Board 2 — PF750 Series, Gate Interface (Item No. 5) or the entire power module, the jumper 3 — PF750 Series, Power Interface marked “J1 HARDWARE ENABLE” must be removed 4 —...
  • Page 21: Appendix A - Wiring Schematics

    APPENDIX A — WIRING SCHEMATICS 19XRV CHILLER CONTROL SCHEMATIC (PIC6)
  • Page 22 APPENDIX A — WIRING SCHEMATICS (CONT) 19XRV CHILLER CONTROL SCHEMATIC (PIC6) (cont)
  • Page 23 APPENDIX A — WIRING SCHEMATICS (CONT) 23XRV CHILLER CONTROL SCHEMATIC...
  • Page 24 APPENDIX A — WIRING SCHEMATICS (CONT) 23XRV CHILLER CONTROL SCHEMATIC...
  • Page 25 APPENDIX A — WIRING SCHEMATICS (CONT) 23XRV CHILLER CONTROL SCHEMATIC...
  • Page 26 APPENDIX A — WIRING SCHEMATICS (CONT) 23XRV CHILLER CONTROL SCHEMATIC...
  • Page 27 APPENDIX A — WIRING SCHEMATICS (CONT) ROCKWELL POWERFLEX 755 WIRING SCHEMATIC (Typical) 19XRV (Typical) See Legend and tables on page 31.
  • Page 28 APPENDIX A — WIRING SCHEMATICS (CONT) ROCKWELL POWERFLEX 755 WIRING SCHEMATIC (Typical) 19XRV (Typical) See Legend and tables on page 31.
  • Page 29 APPENDIX A — WIRING SCHEMATICS (CONT) ROCKWELL POWERFLEX 755 WIRING SCHEMATIC (Typical) (cont) 23XRV (Typical) See Legend and tables on page 31.
  • Page 30 APPENDIX A — WIRING SCHEMATICS (CONT) ROCKWELL POWERFLEX 755 WIRING SCHEMATIC (Typical) (cont) 23XRV Typical (cont) See Legend and tables on page 31.
  • Page 31 — Relay Output Common — Relay Output Common SHLD — Shield SHLD — Shield — Terminal Block — Terminal Block MAIN CIRCUIT BREAKER/DRIVE RATING TABLE FOR 19XRV MAIN CIRCUIT BREAKER/DRIVE RATING TABLE FOR 23XRV UNIT MAIN CIRCUIT FRAME UNIT MAIN CIRCUIT FRAME...
  • Page 32 APPENDIX A — WIRING SCHEMATICS (CONT) ROCKWELL POWERFLEX 755 WIRING SCHEMATIC (Typical) (cont) 19XRV,23XRV METER OPTION a19-2330 © 2022 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

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