Carrier AquaEdge 19DV Series Start-Up, Operation And Maintenance Instructions Manual

Two-stage back-to-back centrifugal liquid chillers with pic6 controls and hfo r-1233zd(e) 50/60 hz
Table of Contents

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SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 2
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ABBREVIATIONS AND EXPLANATIONS . . . . . . . . . . 4
Chiller Information Nameplate . . . . . . . . . . . . . . . . . . 4
System Components . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Economizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Motor-Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Purge Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Variable Frequency Drive (VFD) . . . . . . . . . . . . . . . . . 4
Refrigerant Lubrication System . . . . . . . . . . . . . . . . . 4
Chiller Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Purge Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PIC6 Touch Screen HMI . . . . . . . . . . . . . . . . . . . . . . . . 5
REFRIGERATION CYCLE . . . . . . . . . . . . . . . . . . . . . . 7
REFRIGERANT LUBRICATION CYCLE . . . . . . . . . . . 8
Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Inhibitor Reclaim System . . . . . . . . . . . . . . . . . . . . . . 9
Motor Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . 9
VFD Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 9
VFD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Purge System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PIC6 System Components . . . . . . . . . . . . . . . . . . . . 12
RECYCLE SEQUENCE. . . . . . . . . . . . . . . . . . . . . . 13
Local Start/Stop Control . . . . . . . . . . . . . . . . . . . . . . 13
Lubrication Control . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
BEFORE INITIAL START-UP . . . . . . . . . . . . . . . . . . . 15
Job Data Required . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . 15
Remove Shipping Packaging . . . . . . . . . . . . . . . . . . 15
Tighten All Gasketed Joints . . . . . . . . . . . . . . . . . . . 15
Check Chiller Tightness . . . . . . . . . . . . . . . . . . . . . . 15
Refrigerant Tracer . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Leak Test Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Standing Vacuum Test . . . . . . . . . . . . . . . . . . . . . . . 18
Check the Installation . . . . . . . . . . . . . . . . . . . . . . . . 20
Inspect Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chiller Dehydration . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Inspect Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . 21
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53190056-01
Two-Stage Back-to-Back Centrifugal Liquid
Chillers with PIC6 Controls and HFO R-1233zd(E)
Instructions
Printed in U.S.A.
Check Safety Valves . . . . . . . . . . . . . . . . . . . . . . . . . .21
Check Purge Compressor Operation . . . . . . . . . . . .21
Ground Fault Troubleshooting . . . . . . . . . . . . . . . . .22
Carrier Comfort Network® Interface . . . . . . . . . . . . .22
Inhibitor Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Software Configuration . . . . . . . . . . . . . . . . . . . . . . .23
Charge Unit with Refrigerant . . . . . . . . . . . . . . . . . . .23
Field Set Up and Verification . . . . . . . . . . . . . . . . . . .31
(Quick Calibration/Quick Test) . . . . . . . . . . . . . . .32
INITIAL START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Check Motor Rotation. . . . . . . . . . . . . . . . . . . . . . . . .33
Check Refrigerant Lube . . . . . . . . . . . . . . . . . . . . . . .33
To Prevent Accidental Start-Up . . . . . . . . . . . . . . . . .33
Check Chiller Operating Condition . . . . . . . . . . . . . .33
Instruct the Customer Operator(s) . . . . . . . . . . . . . .34
OPERATING INSTRUCTIONS. . . . . . . . . . . . . . . . . . .36
Operator Duties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Prepare the Chiller for Start-Up . . . . . . . . . . . . . . . . .36
To Start the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Check the Running System . . . . . . . . . . . . . . . . . . . .36
To Stop the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . .36
After Limited Shutdown . . . . . . . . . . . . . . . . . . . . . . .36
After Extended Shutdown . . . . . . . . . . . . . . . . . . . . .36
Cold Weather Operation. . . . . . . . . . . . . . . . . . . . . . .37
Manual Guide Vane Operation. . . . . . . . . . . . . . . . . .37
Refrigeration and Service Log. . . . . . . . . . . . . . . . . .37
TRANSFER PROCEDURES . . . . . . . . . . . . . . . . . .39
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
GENERAL MAINTENANCE. . . . . . . . . . . . . . . . . . . . .42
Refrigerant Properties . . . . . . . . . . . . . . . . . . . . . . . .42
Adding Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Adjusting the Refrigerant Charge . . . . . . . . . . . . . . .42
Refrigerant Leak Testing . . . . . . . . . . . . . . . . . . . . . .42
Leak Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Checking Guide Vanes . . . . . . . . . . . . . . . . . . . . . . . .42
Trim Refrigerant Charge. . . . . . . . . . . . . . . . . . . . . . .44
WEEKLY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . .44
Check for Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
SCHEDULED MAINTENANCE . . . . . . . . . . . . . . . . . .44
Service Ontime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Inspect the Control Panel. . . . . . . . . . . . . . . . . . . . . .44
Inspect the Purge . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Pg 1
®
AquaEdge
19DV
50/60 Hz
6-19
Replaces: 19DV-CLT-1SS

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Summary of Contents for Carrier AquaEdge 19DV Series

  • Page 1: Table Of Contents

    CHILLER FAMILIARIZATION (FIG. 1 AND 2) ..4 Carrier Comfort Network® Interface ... . .22 Chiller Information Nameplate ....4 Inhibitor Charge .
  • Page 2: Safety Considerations

    Changing Refrigerant Lubrication Filters ..45 Inspect Refrigerant Float System ....45 DANGER Inspect Safety Relief Devices and Piping ..45 Failure to follow these procedures will result in severe per- Compressor Bearing Maintenance .
  • Page 3: Start-Up, Operation, And Maintenance

    PERIODICALLY INSPECT all valves, fittings, and piping those cited herein should comply with ANSI/ASHRAE 15 for corrosion, rust, leaks, or damage. (latest edition). Contact Carrier for further information on use of this chiller with other refrigerants. PROVIDE A DRAIN connection in the vent line near each pressure relief device to prevent a build-up of condensate or DO NOT ATTEMPT TO REMOVE fittings, covers, etc.,...
  • Page 4: Abbreviations And Explanations

    — American Wire Gage Purge Unit — Building Management System This is a small independent condensing unit with compressor, sep- ® — Carrier Comfort Network arator, regenerative carbon filters, heater and vacuum pump. The DCIB — Digital Control Interface Board — Digital Volt-Ohmmeter purge extracts gas from condenser (or from compressor if unit is —...
  • Page 5: Purge Control Panel

    Purge Control Panel PIC6 Touch Screen HMI The purge panel includes the input and output boards, control This panel is the user interface for controlling the chiller and transformer, relays, and fuse. It provides the power distribution has the following functions: and protection to the electrical components which installed in •...
  • Page 6 1 — Interconnecting Compressor Piping 2 — VFD Drain (Field Drain Piping Required) FRONT VIEW 3 — Condenser 4 — Condenser Waterbox Return End 5 — Economizer Isolation Valve (Option) 6 — Economizer 7 — Evaporator Waterbox Return End 8 — Vacuum/Charging Valve (Hidden) 9 —...
  • Page 7: Refrigeration Cycle

    chamber, some liquid will flash into a vapor and cool the re- REFRIGERATION CYCLE maining liquid. The separated vapor flows to the second stage The compressor continuously draws refrigerant vapor from the of the compressor for greater cycle efficiency. The second evaporator at a rate set by the amount of first stage guide vane stage guide vane on the compressor acts as a pressure regulat- opening and motor speed.
  • Page 8: Refrigerant Lubrication Cycle

    from the evaporator to the high side float chamber until level sen- sor is satisfied. If liquid high side float level is not satisfied, the CAUTION pump will move refrigerant from the evaporator to the condenser. To avoid adverse effects on chiller operation, considerations During pre-lube and post-lube cycles, refrigerant is drawn from must be made to condenser water temperature control.
  • Page 9: Inhibitor Reclaim System

    NOTE: VALVES SHUT AT FACTORY TO CONTAIN INHIBITOR IN LUBRICATION ASSEMBLY. IMPORTANT: OPEN THESE VALVES PRIOR TO STARTUP. FROM EVAPORATOR TO COMPRESSOR/ MOTOR BEARINGS STRAINER REFRIGERANT PUMP FROM HIGH SIDE FLOAT PUMP CHAMBER DISCHARGE ACTUATOR PUMP SUCTION Fig. 5 — Refrigerant Lubrication Assembly Inhibitor Reclaim System The inhibitor reclaim system moves inhibitor from the evaporator All 19DV units are equipped with a VFD to operate the centrifu-...
  • Page 10 SOLENOID VALVE MOISTURE MOISTURE INDICATOR INDICATOR CONDENSER COMPRESSOR MOTOR COOLING SYSTEM COOLER Fig. 6 — Motor/VFD Cooling System LIFTING LUGS LIFTING LUGS Fig. 7 — 32VS 850A...
  • Page 11 PURGE PUMPOUT (SV03) EXTRA FILTERS WITH STRAP HEATERS (NOT SHOWN) VACUUM PUMP PURGE TANK COMPRESSOR VOLUTE (SV02) CONTROL PANEL CONDENSER (SV01) COMPRESSOR SUCTION CONDENSER ASSEMBLY COMPRESSOR STRAINER VENTING PURGE DRAIN (SV04) (SV06) (REFRIGERANT PUMP INLET) MOTOR DRAIN (SV05) Fig. 8 — Purge System CARBON FILTERS VACCUM PUMP SV06...
  • Page 12: Controls

    BMS system other 4 hours to let carbon filter cool down before it will oper- and can be integrated into Carrier’s Lifecycle System Manage- ate normally. ment for remote monitoring and data management.
  • Page 13: Start-Up/Shutdown/ Recycle Sequence

    or equal to this value, the PIC6 control system turns off the con- START-UP/SHUTDOWN/ denser pump relay and goes into a Recycle mode. RECYCLE SEQUENCE If the water/brine temperature is high enough, the start-up se- Local Start/Stop Control quence continues and checks the guide vane position. If the Local start-up (or manual start-up) is initiated by pressing the guide vanes are more than 4% open, the start-up waits until the gray Start/Stop icon on the HMI interface.
  • Page 14 Table 2 — Prestart Checks † PRESTART CHECK CONDITION* STATE NUMBER STARTS IN 12 HOURS 8 (not counting recycle restarts or auto restarts after power failure) Alert – 100 COND PRESSURE COND PRESS OVERRIDE – 20 psi Alert – 102 #RECYCLE RESTARTS LAST 4 HOURS >...
  • Page 15: Shutdown

    • true RMS (root mean square) digital multimeter with Shutdown clamp-on current probe or true RMS digital clamp-on am- The unit can be stopped locally using the HMI by pressing the meter rated for at least 480 vac green Start/Stop icon .
  • Page 16 be used for charging by lifting charge cylinder and gravity feed be charged with refrigerant. Follow the leak test chiller procedure into the evaporator. The chiller should be charged with refrigerant. (page 18). If the holding charge is not present, the chiller must be examined If the chiller is spring isolated, keep all springs blocked in both for leaks.
  • Page 17 19DV Field Procedure for new units with less than 15 psig holding charge or units suspected of leaking. 1. Attach compound gage to vessel 2. Note ambient temperature Raise pressure to 20 psig (138 kPa) using Nitrogen with added tracer gas for electronic leak detection Leak check Pass...
  • Page 18: Refrigerant Tracer

    NOTE: Suggested test pressure is 20 psig (138 kPa); maximum al- Refrigerant Tracer lowable test pressure 45 psig (310 kPa). Carrier recommends the use of an environmentally acceptable Check the chiller carefully with an electronic leak detector refrigerant tracer for leak testing with an electronic refrigerant detector.
  • Page 19 Table 5 — HFO R-1233zd(E) Pressure and Temperature TEMP. PRESSURE PSIA PSIG IN HG KPAG KPA ABS MMHG (VAC) % VACUUM 20.0 –6.7 –9.54 5.16 –19.4 –65.8 35.6 493.5 22.0 –5.6 –9.27 5.43 –18.9 –63.9 37.4 479.4 24.0 –4.4 –8.98 5.72 –18.3 –61.9...
  • Page 20: Check The Installation

    Check that specified branch circuit protection is installed installation. Note that the contractor should not apply power and correctly rated. to the chiller before the Carrier Start-up Technician arrives at the job site. Ensure there is capability to turn off, lock out, and tag the input power to the drive.
  • Page 21: Inspect Water Piping

    Water must be within design limits, clean, and treated to en- sure proper chiller performance and to reduce the potential of tube damage due to corrosion, scaling, or erosion. Carrier as- sumes no responsibility for chiller damage resulting from un- treated or improperly treated water.
  • Page 22: Ground Fault Troubleshooting

    Carrier Comfort Network Interface from the tester can damage the VFD. The Carrier Comfort Network (CCN) communication bus wir- ing is supplied and installed by the electrical contractor. It con- Perform test #1: For 3-lead motor, tie terminals 1, 2, and 3 sists of shielded, 3-conductor cable with drain wire.
  • Page 23: Inhibitor Charge

    Always charge refrigerant gas into unit until pressure exceeds tion assuming compressor running and negative evaporator pres- water freeze temperature using PUMPDOWN/LOCKOUT sure. A dose of Carrier inhibitor is supplied with the unit by the (located in the Maintenance menu) and TERMINATE LOCK- factory.
  • Page 24 All 19DV units are field charged. Charge the unit from refriger- charging gas until the pressure is greater than the above satura- ant cylinders. Use Tables 8 and 9 to find expected approximate tion pressure temperature to avoid refrigerant flashing and po- charge by adding evaporator and condenser charge together.
  • Page 25 Table 9 — Refrigerant Charge — SI (kg) EVAPORATOR REFRIGERANT REFRIGERANT EVAPORATOR REFRIGERANT REFRIGERANT CONDENSER CONDENSER WT [kg] WT [kg] WT [kg] WT [kg] G20 through G22, G27, G2C, H20, H25 H22, H27 G40 through G23, G28, G2D, H21, H26 H23, H28 —...
  • Page 26 " NPT COOLER CHARGING VALVE COOLER SIGHT GLASSES (APPLY LIGHT TO ONE AND VIEW THROUGH OTHER) Fig. 20 — Evaporator Charging Valve and Sight Glasses HOME SCREEN The Lock icon on the Home screen allows access to the pass- The home screen is the first screen shown after switching the word menu and displays current software version.
  • Page 27 IMPORTANT: Be sure to remember the password. Retain a copy for future reference. Without the password, access will not be possible unless accessed by a Carrier representative. Factory password is required to enter configuration menus re- quired for chiller setup.
  • Page 28 0 to 1 44PSI=0, 72PSI=1 0 to 999 Country Code No/Yes Per selection Free Cooling Option VFD Option No=0,FS VFD=1,Carrier=2, 0 to 5 Rockwell LF2=3, Eaton=4, Rockwell STD=5 0 to 1 IOB3 Option (19XR2~E/D/V) No/Yes IOB4 Option Guide Vane1 Type,...
  • Page 29 Table 13 — UM VFD Config   Main Menu Configuration Menu UM VFD Configuration [CFGUMVFD] DESCRIPTION RANGE UNITS DEFAULT VALUE Compressor Speed 100% 47 to 110 Nameplate Rated Line Voltage 200 to 13800 Volts Nameplate Motor Nameplate Current 10 to 1500 AMPS Nameplate Motor Rated Load Current...
  • Page 30 Table 15 — Option Configuration   Main Menu Configuration Menu Option Configuration [CONF_OPT DESCRIPTION RANGE UNITS DEFAULT VALUE Dsable/Enable — Dsable Jobsite specific Auto Restart Option Dsable/Enable — Dsable Jobsite specific Common Sensor Option EC Valve Option 0 to 3 —...
  • Page 31: Field Set Up And Verification

    See Fig. 29. MODIFY EQUIPMENT CONFIGURATION IF NECESSARY The EQUIPMENT SERVICE table has screens to select, view, or modify parameters. Carrier’s certified drawings have the configuration values required for the jobsite. Modify these val- ues only if requested. Modifications can include: •...
  • Page 32: Perform A Controls Test (Quick Calibration/Quick Test)

    Menu) or measure across the positive (+ red) and negative Perform a Controls Test (– black) leads of the transducer. The voltage ratio must be (Quick Calibration/Quick Test) between 0.80 and 0.11 for the software to allow calibra- NOTE: The QUICK TEST screens can only be accessed when the tion.
  • Page 33: Initial Start-Up

    b. Open evaporator control valve, open condenser drain valve, close condenser control valve, and close evapora- IMPORTANT: When screen display calibration is complete, do tor control valve. Run refrigerant pump for 30 seconds. not press Calibration Enable/Dsable since the new values will be deleted.
  • Page 34: Instruct The Customer Operator(S)

    source of low capacity is found in one of these places, do not pro- Instruct the Customer Operator(s) ceed with an attempt to tune the Surge Prevention configurations. Ensure the operator understands all operating and maintenance If capacity is not reached procedures.
  • Page 35 Speed Factor =1.60 Tsmin=30 Speed Factor =1.85 Tsmin=40 Speed Factor =2.00 Tsmin=50 GV_POS GV_POS Fig. 36 — Effect of SURGE LINE SPEED FACTOR on Surge Prevention Fig. 33 — Effect of SURGE DELTA TSMIN on Surge If ACTUAL GUIDE VANE POSITION is less than 30%, go to Prevention Step 1.
  • Page 36: Operating Instructions

    can be overridden to limit the compressor kW, or the pull- OPERATING INSTRUCTIONS down rate can be decreased to avoid a high demand charge Operator Duties for the short period of high demand operation. Pulldown Become familiar with the chiller and related equipment rate can be based on load rate or temperature rate and is before operating the chiller.
  • Page 37: Cold Weather Operation

    19DV er bypass option may be required for units operating at low lift with PIC6 Controls Operation and Troubleshooting guide. outside of the selected lift as identified in the Carrier Equip- ment Selection Program. Refrigeration and Service Log A refrigeration log (as shown in Fig.
  • Page 38 REFRIGERATION LOG CARRIER 19DV SEMI-HERMETIC CENTRIFUGAL REFRIGERATION MACHINE PLANT______________________ MACHINE MODEL NO.______________________ MACHINE SERIAL NO. _______________________ DATE DESCRIPTION PRESSURE SAT REFRIGERANT LIQUID TEMP LEVEL EVAPORATOR FLOW WATER TEMP IN TEMP OUT PRESSURE REFRIGERANT TEMP SAT CONDENSER FLOW WATER TEMP IN...
  • Page 39: Pumpout And Refrigerant Transfer Procedures

    PUMPOUT AND REFRIGERANT TRANSFER PROCEDURES WARNING Preparation During transfer of refrigerant into and out of the optional storage tank, carefully monitor the storage tank level gage. For refrigerant side service work the refrigerant can be isolated Do not fill the tank more than 90% of capacity to allow for in a storage tank.
  • Page 40 PUMP-OUT WITH STORAGE TANK RELIEF PUMP-OUT VALVE COMPRESSOR CONDENSER SEPARATOR PUMP-OUT CONDENSER ECONOMIZER HS FLOAT AND LS FLOAT CHECK VALVE COOLER STORAGE VESSEL Fig. 39 — Refrigerant Transfer Schematic The following procedures assume that system is piped in pumps can be turned off (if desired). When vacuum agreement with Fig.
  • Page 41 d. Turn off the pumpout compressor. e. Run the pumpout compressor until the chiller pressure reaches –7.5 psig (49.5 kPa abs), followed by turning VALVE off the pumpout compressor. Note it is possible that the CONDITION pressure switch is satisfied before this condition. Warm chiller condenser water will boil off any entrapped liq- e.
  • Page 42: General Maintenance

    (see Fig. 40 and 41): Carrier recommends that leaks totaling less than the above rate Remove the set screw in the guide vane coupling. but more than a rate of 0.1% of the total charge per year should Loosen the holddown bolts on the guide vane actuator.
  • Page 43 Fig. 40 — Guide Vane Actuator...
  • Page 44: Trim Refrigerant Charge

    NOTE: For first stage, rotate coupling clockwise to close guide vanes; rotate coupling counterclockwise to open guide vanes. For second stage, rotate coupling counter- clockwise to close guide vanes; rotate coupling clockwise to open guide vanes. Fig. 41 — Guide Vane Actuator Detail If required, rotate the guide vane shaft fully clockwise for Check for Leaks first stage and counterclockwise for second stage and spot-...
  • Page 45: Inspect The Purge

    MOISTURE INDICATOR SIGHT GLASS FOR INSPECTION NOTE: SECOND INDICATOR IS LOCATED IN THE MOTOR/VFD COOLING LINE (ON THE CONDENSER SIDE) COMING OFF THE BOTTOM OF THE HIGH SIDE FLOAT CHAMBER. Fig. 42 — Moisture Indicator Sight Glass for inspection This applies for both the high side float (first float downstream Inspect the Purge of condenser) and the low side float (second float downstream With unit off drain, purge tank by entering the Quick Test...
  • Page 46: Compressor Bearing Maintenance

    Contact WARNING your Carrier representative to obtain these brushes. Do not use The disconnect on the starter front panel does not always de- wire brushes. Hard scale may require chemical treatment for its energize all internal circuits.
  • Page 47: Recalibrate Pressure Transducers

    Ordering Replacement Chiller Parts age drop; if the controls are powered off, determine sensor When ordering Carrier specified parts, the following informa- temperature by measuring resistance. Compare the readings to tion must accompany an order: the values listed in Tables 17 and 18.
  • Page 48 Table 17 — Thermistor Temperature (F) vs. Resistance/Voltage Drop TEMPERATURE RESISTANCE TEMPERATURE RESISTANCE TEMPERATURE RESISTANCE VOLTAGE VOLTAGE VOLTAGE (OHMS) (OHMS) (OHMS) DROP (V) DROP (V) DROP (V) –25 4.700 97,706 2.565 6,568 0.630 –24 4.690 94,549 2.533 6,405 0.619 –23 4.680 91,474 2.503...
  • Page 49 Table 18 — Thermistor Temperature (C) vs. Resistance/Voltage Drop TEMPERATURE RESISTANCE TEMPERATURE RESISTANCE VOLTAGE VOLTAGE (OHMS) (OHMS) DROP (V) DROP (V) –33 4.722 105 616 1.338 2 272 –32 4.706 99 640 1.300 2 184 –31 4.688 93 928 1.263 2 101 –30 4.670...
  • Page 50: Checking Pressure Transducers

    CHECK SENSOR ACCURACY Checking Pressure Transducers Place the sensor in a medium of known temperature and com- There are 6 factory-installed pressure transducers measuring pare that temperature to the measured reading. The thermome- refrigerant pressure: condenser pressure, evaporator pressure, ter used to determine the temperature of the medium should be refrigerant pump suction, discharge pressure, bearing inlet of laboratory quality with 0.5F (0.25C) graduations.
  • Page 51: High Altitude Locations

    If the transducer value is not within the calibration range, Pressure can be adjusted in the Service Parameters Menu (lo- cated in the Configuration Menu). the transducer returns to the original reading. If the pres- sure is within the allowed range (noted above), check the Quick Test voltage ratio of the transducer.
  • Page 52 Table 19 — Component Weights DV4 COMPRESSOR COMPONENT SUCTION PIPE ASSEMBLY (INCLUDES FLANGES) INTERSTAGE PIPING DISCHARGE PIPING HMI PANEL CONTROL PANEL HIGH SIDE FLOAT CHAMBER COVER LOW SIDE FLOAT CHAMBER COVER PURGE ASSEMBLY ENVELOP CONTROL VALVE / HGBP (OPTION) ECONOMIZER BYPASS VALVE (OPTION) FREE COOLING VALVE (OPTION) LIQUID BYPASS AND ISOLATION VALVE (OPTION) VFD 32VSS0850...
  • Page 53 Table 21 — 19DV Two-Stage Compressor Frame Size DV4 Heat Exchanger Weights (English) DRY RIGGING WEIGHT (LB)* REFRIGERANT WEIGHT (LB) WATER WEIGHT (LB) CODE† EVAPORATOR CONDENSER EVAPORATOR CONDENSER EVAPORATOR CONDENSER ONLY ONLY ONLY ONLY ONLY ONLY 8611 — — 1723 —...
  • Page 54 Table 21 — 19DV Two-Stage Compressor Frame Size DV4 Heat Exchanger Weights (English) (cont) DRY RIGGING WEIGHT (LB)* REFRIGERANT WEIGHT (LB) WATER WEIGHT (LB) CODE† EVAPORATOR CONDENSER EVAPORATOR CONDENSER EVAPORATOR CONDENSER ONLY ONLY ONLY ONLY ONLY ONLY 11218 9211 2657 2121 9025 —...
  • Page 55 Table 22 — 19DV Two-Stage Compressor Frame Size DV4 Heat Exchanger Weights (SI) DRY RIGGING WEIGHT (kg)* REFRIGERANT WEIGHT (kg) WATER WEIGHT (kg) CODE† EVAPORATOR CONDENSER EVAPORATOR CONDENSER EVAPORATOR CONDENSER ONLY ONLY ONLY ONLY ONLY ONLY 3906 — — — 3979 —...
  • Page 56 Table 22 — 19DV Two-Stage Compressor Frame Size DV4 Heat Exchanger Weights (SI) (cont) DRY RIGGING WEIGHT (kg)* REFRIGERANT WEIGHT (kg) WATER WEIGHT (kg) CODE† EVAPORATOR CONDENSER EVAPORATOR CONDENSER EVAPORATOR CONDENSER ONLY ONLY ONLY ONLY ONLY ONLY 5088 4178 1205 4094 —...
  • Page 57 Table 25 — Additional Weights for 19DV 150 psig (1034 kPa) Marine Waterboxes* 19DV4† — SI (kg) EVAPORATOR CONDENSER NUMBER FRAME RIGGING WGT RIGGING WGT WATER WGT WATER WGT PASSES VICTAULIC FLANGE VICTAULIC FLANGE Add to evaporator and condenser weights for total weights. Condenser †...
  • Page 58 BEARING VOLUTE SUPPORT HOUSING MOTOR HOUSING 2ND STAGE 1ST STAGE MOTOR BEARING SHAFT HOUSING LABY IMPELLER SPACER/ NOSE PIECE SIZER EYE LABY SHROUD BEARING/FLANGE IMPELLER ROLLER ELEMENT IMPELLER SHIM LABYRINTH BEARING ASSEMBLY Fig. 47 — 19DV Compressor 7TB IN HMI PANEL FOR CUSTOMER COMMUNICATION CCN CONNECTION...
  • Page 59 ETHERNET SWITCH FOR REMOTE CONNECTIVITY (IF EQUIPPED) 3TB-1 3TB-2 MODEM, FASTENED TO BACK OF DOOR (IF EQUIPPED) Fig. 49 — Control Panel...
  • Page 61 Fig. 51 — 19DV Input Output Board (IOB) Schematic...
  • Page 63 Fig. 51 — 19DV Input Output Board (IOB) Schematic (cont)
  • Page 64 Fig. 52 — 19DV Input Output Board (IOB) Schematic Abbreviations...
  • Page 65 LEGEND — Refrigerant Pump Contactor — Liquid Bypass Valve Contactor (Option) — Economizer Vent Valve Contactor (Option) — Free Cooling Valve Contactor (Option) — Control Power Circuit Breaker — Control Power Circuit Breaker — L1, L2, L3 – Main 3-Phase Power —...
  • Page 66 (devices not supplied access or the reading, adjusting or servicing of any component. by Carrier) must have 24 vac rating. Max current is 60 mA, nomi- 1.3 Equipment installation and all starting and control devices must nal current is 10 mA.
  • Page 67 LEGEND — Transformer — Transformer 7TB 1,2 — 24VAC Low Voltage Wiring Terminal Block 7TB PP1, PP2 — Main One Phase Power 7TB PE — Ground — Purge Compressor/Fan Contactor — Purge Heater Contactor — High Level Switch Relay — Low Level Switch Relay —...
  • Page 69 — FLEX BAR — DCIB — COIL ASSEMBLY — TRANSFORMER 4 kVA — DC REACTOR — CURRENT TRANSFORMERS — RECTIFIER — AC REACTOR — RECTIFIER FAN ASSEMBLY — INVERTER FAN ASSEMBLY — INVERTER — COIL ASSEMBLY — DCIB/HVIB (BACK) CONTROL ASSEMBLY —...
  • Page 70 DRIVE CONTROL INTERFACE BOARD TRANSFER SWITCH FOR SINGLE PHASE SERVICE POWER (IF PROVIDED) Fig. 58 — VFD Power Panel Assembly...
  • Page 72: Appendix A - Pic6 Screen And Menu Structure

    APPENDIX A — PIC6 SCREEN AND MENU STRUCTURE HOME MAIN MENU LOG IN/LOG OUT CONFIRM STOP CHOOSE OPERATING MODE ALARM MENU Fig. A — Screen Structure, Basic Level (All) Access (No Password Required) HOME MAIN MENU LOG IN/LOG OUT CONFIRM STOP CHOOSE OPERATING MODE ALARM MENU Fig.
  • Page 73 APPENDIX A — PIC6 SCREEN AND MENU STRUCTURE (CONT) HOME MAIN MENU LOG IN/LOG OUT CONFIRM STOP CHOOSE OPERATING MODE ALARM MENU Fig. C — Screen Structure, Service (Advanced User) / Factory Level Access Password Required...
  • Page 74 APPENDIX A — PIC6 SCREEN AND MENU STRUCTURE (CONT) MAIN MENU DESCRIPTION ICON DISPLAYED TEXT* ACCESS ASSOCIATED TABLE† General Parameters Basic, User, Factory GENUINT Temperatures Basic, User, Factory TEMP Pressures Basic, User, Factory PRESSURE Inputs Status Basic, User, Factory INPUTS Outputs Status Basic, User, Factory OUTPUTS...
  • Page 75: Appendix B - Ccn Communication Wiring For Multiple Chillers (Typical)

    APPENDIX B — CCN COMMUNICATION WIRING FOR MULTIPLE CHILLERS (TYPICAL) DRAIN WIRE BLACK (G) WHITE (-) RED (+) NOTE : Field-supplied terminal strip must be located in control panel.
  • Page 76: Appendix C - Maintenance Summary And Log Sheets

    APPENDIX C — MAINTENANCE SUMMARY AND LOG SHEETS 19DV MAINTENANCE INTERVAL REQUIREMENTS WEEKLY COMPRESSOR None CONTROLS Review PIC6 Alarm/Alert History. EVAPORATOR None. None. CONDENSER None. OIL RECLAIM None. MONTHLY COMPRESSOR None. CONTROLS Review and record purge operating time. ANNUALLY COMPRESSOR Change lubrication assembly refrigerant and bearing Perform general cleaning.
  • Page 77 APPENDIX D — REMOTE CONNECTIVITY COMMISSIONING Introduction Installation During Commissioning Cellular Remote Connectivity is a system developed by Carrier Disconnect unit power. Use proper lockout-tagout proce- to remotely monitor a chiller. It consists of a PIC6 controller, dures to ensure safety while installing this equipment since IP Switch, cellular modem, and an antenna.
  • Page 78: Appendix D - Remote Connectivity

    APPENDIX D — REMOTE CONNECTIVITY COMMISSIONING (CONT) Table A — Customer Gateway Data Submittal Information Submittal Data: Fill out all white fields. Scan or photograph and submit per Customer Gateway instructions. CHILLER INFORMATION Parameter Write Values Below Description PIC6 Software Shown at bottom of start-up screen, or in the menu under Configuration >...
  • Page 79: Commissioning

    AT&T network. Path to see the phone’s current dBm signal varies by phone make and model. Note that the network signal strength is outside of Carrier’s con- Fig. F — Modem Connections trol. If no suitable positions are identified with the standard anten-...
  • Page 80 For PIC6 BACnet IP is configured from Main Menu → Protocol ConfigurationT. INADEQUATE SIGNAL STRENGTH Sites with inadequate signal strength should work with Carrier Service for the best on-site solution to activate the remote con- nectivity. Current alternatives to the standard antenna are a higher gain antenna, AT&T signal boost device or installing a...
  • Page 81: Index

    INDEX Abbreviations and explanations, Recalibrating, Bearing and gear maintenance, Pumpdown/lockout, Bearings, Pumpout and refrigerant transfer, Bolt torque requirements, Quick test Chiller Perform, Components, Use in troubleshooting, Dehydration, Refrigerant Familiarization, Adding, Identification, Adjusting charge, Information nameplate, Charge, 24,25 Leak test, Float system, inspecting, Limited shutdown, operation after, Leak rate, Operating condition, checking,...
  • Page 82 Copyright 2019 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53190056-01 Printed in U.S.A. Form 19DV-CLT-2SS Pg 82 6-19 Replaces: 19DV-CLT-1SS...
  • Page 83: Initial Start-Up Checklist

    OLTA REFRIGERANT: Type: Charge Yes  No  CARRIER OBLIGATIONS: Disassembled at Job Site ..Yes  No  Assemble....
  • Page 84 B: Take at least two sets of operational log readings and record. C: Give operating instructions to owner’s operating personnel. Given at: Hours D: Call your Carrier factory representative to report chiller start-up. E: Return a copy of this checklist to the local Carrier Service office. SIGNATURES: CARRIER CUSTOMER...
  • Page 85 19DV PIC6 SET POINT TABLE CONFIGURATION SHEET DESCRIPTION RANGE UNITS DEFAULT VALUE Cooling ECW Set point –9.4 to 48.9 °C 15.6 EWT Control Option DISABLE/ENABLE — DSABLE Ice Build Set point –9.4 to 15.6 °C Cooling LCW Set point –12.2 to 48.9 °C Base Demand Limit 10.0 to 100.0...
  • Page 86 Water =0, Brine =1 19DV Comp Design Press 0 to 1 44PSI=0 72PSI=1 Free Cooling Option 0 to 1 VFD Option No=0,FS VFD=1,Carrier=2 0 to 5 Rockwell LF2=3, Eaton=4 Rockwell STD=5 IOB4 Option 0 to 1 Guide Vane1 Type 0 to 1...
  • Page 87 19DV PIC6 CFGUMVFDUM VFD CONFIGURATION TABLE CONFIGURATION SHEET DESCRIPTION RANGE UNITS DEFAULT VALUE Compressor Speed 100% 47 to 200 Motor Rated Line Voltage 200 to 13800 Volts Motor Nameplate Current 10 to 2000 AMPS Motor Rated Load Current 10 to 2000 AMPS Motor Nameplate Voltage 200 to 13800...
  • Page 88: Form 19Dv-Clt-2Ss Pg

    Copyright 2019 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53190056-01 Printed in U.S.A. Form 19DV-CLT-2SS Pg CL-6 6-19 Replaces: 19DV-CLT-1SS...

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