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Related Manuals for Daikin NAVIGATOR WWV
Summary of Contents for Daikin NAVIGATOR WWV
- Page 1 INSTALLATION, OPERATION & MAINTENANCE IOM 1264-4 FEBRUARY 2024 NAVIGATOR WWV/TWV ® WATER-COOLED SCREW CHILLERS • MODEL WWV/TWV • 150 TO 300 TONS • R-134a & R-513A REFRIGERANT LEARN MORE AT DAIKINAPPLIED.COM ©2024 DAIKIN APPLIED | (800) 432.1342...
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Page 2: Table Of Contents
©2024 Daikin Applied, Minneapolis, MN. All rights reserved throughout the world.This document contains the most current product information as of this printing. Daikin Applied Americas Inc. has the right to change the information, design, and construction of the product represented within the document without prior notice. -
Page 3: Introduction
Polyolester Oil, commonly known as POE oil is a synthetic oil used in many refrigeration systems, and may be present in this Daikin Applied product. POE oil, if ever in contact with PVC/ CPVC, will coat the inside wall of PVC/CPVC pipe causing environmental stress fractures. -
Page 4: General Description
Necessary equipment protection and operating controls are included. All Daikin Applied screw chillers must be commissioned by a Daikin Applied service technician or an authorized service provider. Failure to follow this startup procedure can affect the equipment warranty. -
Page 5: Installation
Report shipping damage and file a claim with the carrier. Check the unit nameplate before unloading, making certain it agrees with the power supply available. Daikin Applied is not responsible for physical damage after the unit WWW.DAIKINAPPLIED.COM... -
Page 6: Lifting Guidance
See the as-designed, certified dimensioned drawings included in the job submittal for the weights and center of gravity of the unit. If the drawings are not available, consult the local Daikin Applied sales office for assistance. Installation is to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment. -
Page 7: Transit And Temporary Storage
The chiller must be stored in a dry location and protected from any damage or sources of corrosion. A Daikin Applied service Figure 3: Lifting Points Locations representative must perform an inspection and leak test of the unit on minimum quarterly schedule, to be paid by the owner or contractor. -
Page 8: Heat Exchanger Water Piping
Polyolester Oil, commonly known as POE oil is a synthetic oil Be sure that water inlet and outlet connections match certified used in many refrigeration systems, and is present in this Daikin drawings and nozzle markings. Applied product. POE oil, if ever in contact with PVC/CPVC, will... - Page 9 Strainers must be used to protect the chiller • Extension pipe with two Schrader fittings that can be used systems from water-borne debris. Daikin Applied will not be for a pressure gauge and thermal dispersion flow switch. responsible for any water-borne debris damage or water side...
- Page 10 Figure 5: Drain Plug Installation Reducing evaporator flow in proportion to load can reduce system power consumption. Daikin Applied chillers are designed for variable water flow duty provided that the rate of change is less than 10 percent of the design flow per minute, and the minimum and maximum flow rates for the evaporator are not exceeded.
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Page 11: Relief Valves
INSTALLATION Three-Way Bypass Valve Operation Figure 7: Three-Way Relief Valve To modulate the water temperature in the condenser, install a three-way by-pass valve. The three-way valve position can be modulated by a 0-10Vdc signal from the unit controller to regulates proper water temperature. VFD Operating with a Condenser Water Pump In place of a valve, use a circulation pump controlled by an inverter . - Page 12 When the valve stem is not turned forward or turned back completely, the valve is in “Mid Position,” as shown in Figure 10 . CAUTION Do not operate the system with the three-way valve stem in the Mid Position. Figure 10: Three-Way Valve, Mid Position DAIKIN APPLIED NAVIGATOR WWV/TWV...
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Page 13: Retrofit Knockdown
• Site disassembly and reassembly must be supervised or completed by Daikin Applied service personnel. • Block off plates are required to cover any refrigerant connection left open for extended periods of time. Contact Daikin Applied service to obtain these parts. WWW.DAIKINAPPLIED.COM IOM 1264-4... - Page 14 HEIGHT • Site reassembly must be supervised or completed by Daikin Applied service personnel. Cost for unit reassembly and supervision by Daikin Applied service is not included in the purchase price of the equipment. Contact Daikin Applied service for pricing.
- Page 15 INSTALLATION Unit Knockdown Dimensions Figure 13: Unit Dimensional Diagram for Typical WWV Knockdown Table 4: WWV Knockdown Dimensions Combined Unit Configurations E16/C18 E16/C20 E20/C20 E24/C24 Length (in) 150 .7 149 .7 149 .8 Width (in) 23 .2 23 .2 25 .2 30 .4 Height (in) 61 .2...
- Page 16 10 . Disconnect all solenoids from the chiller but leave bolts, unless otherwise stated for specific components. Contact connected to the control box; the jet pump solenoid Daikin Applied service for this information. harness should include the solenoid coil. 1 . Recover refrigerant charge from the unit.
- Page 17 INSTALLATION Type B Knockdown Disassembly Type B knockdown units are shipped disassembled except for the vessel stack and are shipped without refrigerant. If the stack size or weight dictates further disassembly, the vessels can be separated by disconnecting any interconnecting wiring and tubing and then unbolting the tube sheet braces while ensuring the vessel weights are safely supported.
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Page 18: Templifier
Templifier units can be arranged and controlled to act as NOTE: either a water chiller or a water heater. These systems vary Contact a Daikin Applied representative for performance at specific considerably in the specifics of the piping arrangement. Care operating conditions, as some limits depend on unit configuration must be exercised when changeover occurs to avoid mixing water streams that could possibly contaminate a water system. - Page 19 It also serves to shut down drop will be higher. the unit in the event that water flow is interrupted to guard against Daikin Applied encourages a minimum glycol concentration of evaporator freeze-up. 25% be provided on all glycol applications. Glycol concentrations...
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Page 20: Electrical
The unit control circuit is powered at 120 Vac. Terminals are provided in the unit control panel for optional field hookup of the control circuit to a separate fused 115-volt power supply in lieu of DAIKIN APPLIED NAVIGATOR WWV/TWV... - Page 21 ELECTRICAL Figure 16: Field Wiring Diagram - Single Point Power NOTE: ALL FIELD WIRING TO BE PANEL INSTALLED AS NEC CLASS 1 WIRING SYSTEM WITH CONDUCTOR RATED POWER BLOCK CIRCUIT BREAKER 600 VOLTS (BY OTHERS) DISCONNECT SWITCH 3 PHASE POWER COMPRESSOR(S) SOURCE OR CIRCUIT 1...
- Page 22 PHySICAL DATA Figure 17: Typical Refrigerant Piping Diagram DAIKIN APPLIED NAVIGATOR WWV/TWV...
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Page 23: Physical Data
NOTICE Drawings, dimensional values, and other information may change depending on options or configurations selected. Refer to the as- built submittal drawings provided by a Daikin Applied sales representative for configuration-specific details. Figure 18: Component Locations - Front View No . - Page 24 Oil Presence Sensor Liquid Line Shut-off Valve 1.8 VR Solenoid Valve Refrigerant Charge Service Valve Low Side Relief Valves Oil Discharge Service Valve Service Valve Oil Line Shut-off Valve Jet Pump Solenoid Valve Oil Level Sight glasses DAIKIN APPLIED NAVIGATOR WWV/TWV...
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Page 25: Operation
Training courses for Navigator Water-cooled Screw Maintenance equipment and the system before attempting operation. During and Operation are held throughout the year at the Daikin the initial startup of the chiller, the Daikin Applied service Learning Institute in Verona, Virginia. The class includes... -
Page 26: Microtech Unit Controller Inputs/Outputs
Condenser Water Pump 2 Pump Off Pump On Table 16: Digital Inputs Description Signal Off Signal On Mechanical High Safe Torque Off Normal Operation Press Switch Table 17: Analog Inputs Description Signal Source Motor Temperature PTC Thermister DAIKIN APPLIED NAVIGATOR WWV/TWV... -
Page 27: Set Points
OPERATION Set Points Description Default Range Unit Test Mode Off,On The following parameters are remembered during power off Staging and Capacity Control (permanent memory), are factory set to the Default value, and 44 .6°F can be adjusted to any value in the Range column. Cool LWT See Table 21 (7°C) - Page 28 Condenser LWT 0°F (0°C) -9.0 to 9.0°F (-5.0 to 5.0°C) Senser Offset Condenser EWT 0°F (0°C) -9.0 to 9.0°F (-5.0 to 5.0°C) Senser Offset Circuit Configuration Start To Start 15 min 15 to 60 minutes Time Delay DAIKIN APPLIED NAVIGATOR WWV/TWV...
- Page 29 OPERATION Table 19: Unit Test Mode Set Points Description Default Range Restore Default Description Default Range No, Yes Settings Test Unit Alarm Output Off, On Display Units English English, Metric Test Evaporator Pump Output 1 Off, On Test Evaporator Pump Output 2 Off, On Saving and Restoring Settings Test Condenser Pump Output 1...
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Page 30: Circuit Level Set Points
Test VR 2.4 Output Off, On solution temperatures per software range limits. Consult the Test VR 3.1 Output Off, On local Daikin Applied sales office for performance outside these temperatures. Leaving chilled fluid temperatures below 0.0 to Test EXV Position 0.0% 100.0%... -
Page 31: Unit Enable
OPERATION Unit Enable Table 27: Unit Mode Combinations Control Enabling and disabling the chiller is accomplished using set Available Modes Mode Source Unit Mode points and inputs to the chiller. The Unit Switch, Remote Switch Set Point Input Request Set Point Input, and Unit Enable Set Point all are required to be On/Enable Cool Cool... -
Page 32: Unit Status
Unit State = Auto, unit capacity limit has • Evap State = Run Cap Limit been met or exceeded • Evaporator flow switch input is off AUTO: Unit State = Auto, unit is performing RapidRestore RapidRestore operation DAIKIN APPLIED NAVIGATOR WWV/TWV... -
Page 33: Condenser Pump Control
OPERATION Condenser Pump Control Evaporator Freeze Protection To protect the evaporator from freezing, the evaporator pump will For control of the condenser pumps, three condenser pump start if the manual reset flow loss alarm is not active and either of control states are used: the following are true: 1 . -
Page 34: Cooling Tower Control
Valve Stage. When the condenser state becomes Run, the VFD Control Configuration = VFD Stage or Valve SP/VFD valve position will be controlled to a position limited to a range Stage) from the Valve Minimum Position set point to the Valve Maximum DAIKIN APPLIED NAVIGATOR WWV/TWV... -
Page 35: Leaving Water Temp (Lwt) Target
OPERATION LWT Reset Position set point. In this mode the valve position is calculated by a PID loop to The base LWT target may be reset to a higher value if the unit is control the condenser EWT or LWT (as selected by the Tower in Cool mode and LWT Reset Enable is enabled. -
Page 36: Unit Capacity Limits
• DI1 on the RapidRestore module has a signal If either of the above conditions are no longer true for at least five seconds, then the RapidRestore set point will be changed to ‘disable’, effectively disabling the RapidRestore option in the chiller. DAIKIN APPLIED NAVIGATOR WWV/TWV... -
Page 37: Circuit Functions
OPERATION Circuit Functions Circuit States There are four distinct states of control for the circuit as shown. Components controlled at the circuit level include: • Compressor VFD Figure 23: Circuit State Transitions • Compressor VR Solenoid Valves • Oil Return Solenoid Valve •... -
Page 38: Circuit Status
When a capacity increase occurs a time delay starts and when a capacity decrease occurs a separate time delay starts. While either of these delays is active, no normal capacity changes will DAIKIN APPLIED NAVIGATOR WWV/TWV... -
Page 39: Evaporator Exv Control
OPERATION Automatic VR Control occur. The load and unload delay times are calculated values. Whenever the speed command is less than the Compressor The compressor should start with all three solenoid valves off. Minimum Frequency value, the speed command should be After compressor has been running for at least 20 seconds, the increased at the same rate allowed for normal capacity increases control logic will “stage”... -
Page 40: Circuit Capacity Overrides
An alarm is preventing the chiller from running There are alarms that do not cause the chiller to shut down or prevent it from running. Those alars should not cause the alarm digital output to be turned on. DAIKIN APPLIED NAVIGATOR WWV/TWV... -
Page 41: Clearing Alarms/Faults
OPERATION Figure 25: Alarm Snapshot Log Example Figure 26: SD Card Folder Structure Signaling Alarms The following actions will signal that an alarm has occurred: • The unit or a circuit will execute a rapid or normal shutdown. • An alarm bell icon will be displayed in the upper right-hand corner of all controller screens including the optional remote user interface panel’s screens. -
Page 42: Unit Alarms
This alarm can be cleared manually via the unit controller HMI, but only if specific LWT and EWT are both above the specified Freeze Protect set point or have a sensor fault (meaning the tempera- ture reading is not valid) DAIKIN APPLIED NAVIGATOR WWV/TWV... - Page 43 OPERATION Evaporator Water Temperatures Inverted Emergency Stop Displayed Text: EvapWaterTempInverted Displayed Text: Emergency Stop Switch Trigger: All of the following are true for at least 90 seconds: Trigger: Emergency Stop input is off for at least 1 second. Action Taken: Rapid shutdown unit and lock out unit from running Unit is in Run state Reset:...
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Page 44: Circuit Alarms
Action Taken: Rapid shutdown of unit and lock out from running Reset: This alarm can be cleared manually via the Unit Controller HMI. When alarm is cleared, command to reset alarms should be sent to VFD DAIKIN APPLIED NAVIGATOR WWV/TWV... - Page 45 OPERATION High Discharge Temperature Oil Feed Loss Displayed Text: C1 DiscTempHigh Displayed Text: C1 Oil Feed Loss Trigger: The following are true for one second: Trigger: The following are true for 20 second: Circuit state is Start, Run, or Shutdown Oil Presence Sensor setting is ‘Yes’...
- Page 46 Motor phase W is missing Action Taken: Rapid shutdown of unit and lock out from running Reset: This alarm will automatically reset when none of the motor phase loss alarm flags are set for at least 5 seconds. DAIKIN APPLIED NAVIGATOR WWV/TWV...
- Page 47 OPERATION Mains Phase Loss Condenser Pressure Sensor Fault Displayed Text: C1 CmpVfd Phase Loss Displayed Text: C1 CondPressSenFault Trigger: Compressor VFD sets the ‘Mains Phase Loss’ Trigger: Trigger if all of the following are true: alarm flag for at least one second or the ‘Mains UC communication with CC1 module is OK Failure’...
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Page 48: Events
Evaporator Pressure Hold set point. It is also reset operating mode is changed to Ice. if the circuit is no longer in the run state or the unit operating mode is changed to Ice. DAIKIN APPLIED NAVIGATOR WWV/TWV... - Page 49 OPERATION High VFD Output Current Unload High VFD Temperature Unload Trigger: This event will trigger when compressor is running, Trigger: This event will trigger when all of the following are true Unit mode = Cool, and either of the following occur: for at least 5 seconds: Unit mode = Cool Motor Current >...
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Page 50: Unit Controller Operation
An arrow is displayed to the far right of the line to indicate it is a “jump” line, meaning pushing the bottom right checkmark button will cause a “jump” to a new menu . DAIKIN APPLIED NAVIGATOR WWV/TWV... - Page 51 “normal” operation. TheTechnician/ Manager password allows similar access to Operator with the addition of more advanced status and commissioning set points. The Daikin Applied service technician has the highest level of access. WWW.DAIKINAPPLIED.COM...
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Page 52: Maintenance
Return the “WWV Screw Compressor Equipment Warranty NOTICE Form” within 10 working days to Daikin Applied as instructed on Flow switch MUST be calibrated before chiller operation. Failure to properly the form to obtain full warranty benefits. - Page 53 MAINTENANCE It is required that the flow switch be mounted such that the If needed, the adapter is threaded into the pipe using pipe electrical connection and indentation ‘mark’ are pointed in the sealant appropriate for the application. The flow sensor is direction of flow as shown in Figure 33 .
- Page 54 In Step 3, the ‘Teach’ function re-adjusted the flow switch SP while flow was at the minimum desired operating flow. The chiller will not operate at this flow because the flow switch is OPEN after performing the ‘Teach’ function. The benefit of the ‘Teach’ DAIKIN APPLIED NAVIGATOR WWV/TWV...
- Page 55 MAINTENANCE Step 5: Once the SP is set, it is recommended that the sensor be Flow above display range: The SP LED will be lit amber, all locked to avoid inadvertent readjustment. This can be performed LEDs to the left and right of the SP LED will be green with the by pressing both the ‘+’...
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Page 56: Startup
Dyes used for refrigerant leak detection are not tested or all screw or lug-type electrical connections to be sure they recommended for use in Daikin Applied chillers. Use of these are tight for good electrical contact. products may damage and/or degrade the performance of the equipment and will void the manufacturer warranty. -
Page 57: Vibration Monitoring (Optional)
Oil Filter Removal and Renewal Polyolester Oil, commonly known as POE oil is a synthetic oil used in many refrigeration systems, and is present in this Daikin Prior to this procedure, pump out the compressor. Isolate the Applied product. POE oil, if ever in contact with PVC/CPVC, will... -
Page 58: Electrical Terminals
An element inside the sight glass indicates the moisture condition corresponding to a given element color. If the sight glass does not indicate a dry condition after about 12 hours of operation, an oil acid test is recommended. DAIKIN APPLIED NAVIGATOR WWV/TWV... - Page 59 MAINTENANCE Do not use the sight glass on the EXV body for refrigerant Figure 44: Planned Maintenance Schedule charging. Its purpose is to view the position of the valve. Monthly Annual Operation Weekly Pump Operation (Note 1) (Note 2) General It is highly recommended that the chiller unit control the chilled Complete unit log and review water pump(s).
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Page 60: Appendix
(collectively “Owner”) that, subject to the exclusions set forth below Company, at its option, will repair or replace defective parts in the event any product manufactured by Company, including products sold under the brand name Daikin and used in the United States or Canada, proves defective in material or workmanship within twelve (12) months from initial startup or eighteen (18) months from the date shipped by Company, whichever occurs first. -
Page 61: Pre-Start Checklist
Document Attached: Remote evaporator piping approval (if applicable) Notes: The most common problems delaying start-up and affecting unit reliability are: Field installed compressor motor power supply leads too small. Questions: Contact the local Daikin Applied sales representative*. State size, number and type of conductors and conduits installed:... - Page 62 DAIKIN APPLIED NAVIGATOR WWV/TWV...
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- Page 64 1 - 8 0 0 - 4 3 2 - 1 3 4 2 | 7 6 3 - 5 5 3 - 5 3 3 0 LEARN MORE AT DAIKINAPPLIED.COM PART NuMBER: IOM1264-4 © 2024 DAIKIN APPLIED | (800) 432.1342 | WWW.DAIKINAPPLIED.COM...