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Daikin Navigator WWV User Manual

Daikin Navigator WWV
64 pages
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LEARN MORE AT DAIKINAPPLIED.COM
FEBRUARY 2024
NAVIGATOR
®
WWV/TWV
WATER-COOLED SCREW CHILLERS
IOM 1264-4
INSTALLATION, OPERATION & MAINTENANCE
MODEL WWV/TWV
150 TO 300 TONS
R-134a & R-513A REFRIGERANT
©2024 DAIKIN APPLIED | (800) 432.1342

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Daikin Navigator WWV Specifications

General IconGeneral
BrandDaikin
ModelNavigator WWV
CategoryChiller
LanguageEnglish

Summary

Introduction to the Manual

Hazard Identification and Safety Warnings

Details hazards and their potential consequences, using DANGER, WARNING, CAUTION, and NOTICE classifications.

General Description of Navigator Chillers

Templifier Models Overview

Describes Templifier units and their capabilities, including heating and cooling modes.

Nomenclature and Model Identification

Explains the model designation system for WWV chillers, breaking down each part.

Installation Guidelines

Operating and Standby Limits

Lists temperature and other operating limits for the WWV chillers.

Unit Placement and Clearance Requirements

Provides guidance on selecting the proper location for chiller installation, including clearance requirements.

Pre-Installation Inspection Procedures

Details the steps for inspecting the unit upon arrival and before installation.

Lifting and Rigging Guidance

Lifting Bracket Usage and Safety

Explains how to engage with and use the unit's lifting brackets safely.

Lifting Equipment Selection and Use

Discusses the importance of proper lifting equipment selection and use.

Transit and Temporary Storage Procedures

Long Term Storage Precautions

Outlines precautions for storing the chiller for extended periods, especially in humid environments.

Heat Exchanger Water Piping Installation

Heat Exchanger Piping Components Description

Lists and describes the components for heat exchanger water piping, including valves and sensors.

Inlet Strainer Installation Guidelines

System Water Volume Considerations

Discusses the importance of adequate system water volume for chiller operation and stability.

Vessel Drains at Startup Procedure

Explains the factory configuration of drain plugs and their installation before filling.

Flow Switch Installation and Functionality

Variable Speed Pumping Operation

Explains how variable speed pumping affects flow and efficiency.

Glycol Solution Usage and Implications

Provides guidelines on using glycol solutions in the chiller system.

Three-Way Bypass Valve Operation

Refrigerant Relief Valve Function and Safety

Explains the purpose and function of pressure relief valves for safety.

Three-Way Valve Positions and Operation

Mid Position Valve Operation Caution

Warns against operating the system with the three-way valve in the Mid Position.

Retrofit Knockdown Options

Type A Knockdown Construction Details

Details the Type A knockdown method, where components are bolted together for field disassembly.

Type B Knockdown Construction Details

Compressor Dimensions and Weights

Provides dimensional and weight data for different compressor models.

Unit Knockdown Dimensions

Combined Unit Knockdown Dimensions

Lists dimensions and weights for various combined unit configurations.

Separated Component Knockdown Dimensions

Lists dimensions and weights for separated evaporator and condenser units.

Type A Knockdown Disassembly Procedure

VFD Power Wiring Diagram

Illustrates the power wiring connections within the VFD.

Vessel Blockoff Locations Diagram

Shows the locations for vessel blockoffs during disassembly.

Type B Knockdown Disassembly and Reassembly

Type B Knockdown Reassembly Steps

Details the steps for reassembling the Type B knockdown unit.

Templifier Unit Overview

Templifier Operating Limits

Lists the operating limits for Templifier units, including pressure and temperature.

Source Water Piping for Templifiers

Provides guidelines for source water piping installation for Templifier models.

Flow Switch Installation and Functionality

Groove Coupling and Flow Switch Warnings

Provides warnings regarding groove couplings and flow switch installation.

Glycol Solution Usage for Templifiers

Discusses the use of glycol solutions in Templifier systems and their implications.

Electrical Connections and Safety

Control Circuit Wiring and Interlocks

Details the wiring for the unit's control circuit, including pump interlocks.

Generator Power Integration Guidelines

Provides guidelines for connecting the chiller to on-site generators.

Field Wiring Diagram for Single Point Power

Power Source Connections Diagram

Illustrates the single-point power source connections for the unit.

Refrigerant Piping Diagram

Oil Return Solenoid Valve Function

Explains the function of the oil return solenoid valve.

Physical Data and Component Locations

Front View Component Locations

Identifies the location of various components on the front view of the unit.

Top and Back View Component Locations

Top View Component Identification

Lists and identifies components visible from the top view.

Back View Component Identification

Lists and identifies components visible from the back view.

Operation Overview

Control System Architecture Overview

Provides an overview of the chiller's control system components and their interconnections.

Operator Responsibilities and Logging

Outlines the duties and responsibilities of the unit operator.

MicroTech Unit Controller Inputs/Outputs

CC1 Module Analog Inputs

Lists analog input signals for the CC1 module.

Evaporator EXV1 Module Analog Inputs

Lists analog input signals for the Evaporator EXV1 module.

Unit Set Points Configuration

Unit Level Set Points and Ranges

Details settable parameters at the unit level, including defaults and ranges.

Compressor Type Configuration

Describes the setting for compressor type, which affects available modes and parameters.

Dynamic Set Point Ranges

Tower Fan Stage Set Points

Lists set points related to tower fan staging, including on/off temperatures and delays.

Unit Alarm and Limit Settings

Details unit-specific alarms and operational limits.

Unit Test Mode Set Points

Administration and Service Support Settings

Covers settings for administration, logging, and saving/restoring configuration.

Circuit Level Set Points

Evaporator Calculation Metrics

Explains evaporator LWT error and EWT slope calculations.

Compressor VR Control Options

Details manual and automatic control of the compressor's Variable Volume Ratio (VR).

Unit Enable and Disable Control

Unit Mode Selection Logic

Explains how the unit mode is determined by set points and inputs.

Unit Control States Overview

Describes the three possible control states of the unit: Off, Auto, and Shutdown.

Unit Status Indicators

Evaporator Pump Control States

Details the three control states for evaporator pumps: Off, Start, and Run.

Unit State Transition Logic

Explains the conditions for transitions between unit states like Auto, Shutdown, and Off.

Evaporator Freeze Protection

Evaporator Pump Selection Logic

Outlines the logic for selecting the primary and backup evaporator pumps.

Condenser Pump Control States

Details the three control states for condenser pumps: Off, Start, and Run.

Cooling Tower Control System

Cooling Tower Fan Staging Logic

Explains the conditions for enabling and disabling the first and second fan stages.

Cooling Tower Bypass Valve Control

Describes how the bypass valve position is controlled based on configuration settings.

Leaving Water Temp (LWT) Reset Function

Cooling Tower Fan VFD Control

Explains how the cooling tower fan VFD speed is controlled.

Unit Capacity Control Logic in Cool Mode

Details the logic for controlling unit capacity in Cool Mode, including staging.

Ice Mode Operation

Unit Capacity Limits in Cool Mode

Explains the limits placed on unit capacity in Cool Mode.

RapidRestore Option Functionality

Describes the RapidRestore option for faster restarts after power loss.

Circuit Level Functions

Approach Value Calculations

Explains how approach values are calculated for evaporators and condensers.

Circuit State Transitions Overview

Illustrates the different states a circuit can be in and how they transition.

Circuit Status Indicators

Compressor Control Methods

Details how the compressor is controlled via VFD and digital outputs.

Compressor Cycle Timers

Explains the minimum time between compressor starts and stops.

Manual Compressor Speed Control

VR Solenoid Valve Control

Describes the function of the three solenoid valves for compressor volume ratio.

Evaporator EXV Control Logic

Explains how the Evaporator EXV controls refrigerant flow to the evaporator.

Alarm Monitoring and Logging

Alarm Logging Functionality

Details how alarms are logged, stored, and displayed in the system.

Alarm Snapshot Log

Explains the snapshot log which stores parameter values before an alarm occurs.

System Events Logging

Exporting Logs to SD Card

Describes how to export alarm, snapshot, and event logs to an SD card.

Alarm Signaling Methods

Outlines the methods by which alarms are signaled to the operator.

Unit Specific Alarms

Evaporator Flow Loss Alarm

Details the trigger, action, and reset conditions for evaporator flow loss alarms.

Condenser Flow Loss Alarm

Details the trigger, action, and reset conditions for condenser flow loss alarms.

Evaporator Water Temperature Inversion Alarm

Emergency Stop Functionality

Explains the function and reset procedure for the emergency stop switch.

Unit Ground Fault Protection

Describes the ground fault protection feature and its alarm conditions.

Circuit Specific Alarms

Low Evaporator Pressure Alarms

Details the triggers and conditions for low evaporator pressure alarms.

High Condenser Pressure Alarms

Details the triggers and conditions for high condenser pressure alarms.

Mechanical High Pressure Switch Alarm

High Discharge Temperature Alarm

Describes the triggers for high discharge temperature alarms.

High Oil Pressure Difference Alarm

Details the conditions that trigger a high oil pressure difference alarm.

Compressor VFD Communication Failure Alarm

Compressor VFD Fault Alarms

Lists various fault conditions reported by the compressor VFD.

Compressor VFD Over Voltage Alarm

Describes the alarm condition for over voltage in the compressor VFD.

Compressor Multiple Start Failure Alarm

Condenser Pressure Sensor Fault

Details the conditions for a condenser pressure sensor fault alarm.

Evaporator Pressure Sensor Fault

Details the conditions for an evaporator pressure sensor fault alarm.

System Events

Low Evaporator Pressure Unload Event

Describes the event where the compressor unloads due to low evaporator pressure.

High Condenser Pressure Hold Event

Describes the event where high condenser pressure causes a hold condition.

High VFD Output Current Unload Event

High VFD Temperature Unload Event

Describes the event where high VFD temperature causes unloading.

Low Pressure Ratio Shutdown Event

Details the event that triggers a shutdown due to low pressure ratio.

Unit Controller HMI Operation

Changing Parameter Values on HMI

Explains how to navigate and change parameter values on the controller.

Unit Controller Menu Structure

Describes the types of lines and navigation within the controller's menus.

Password Access Levels

Operator Level Access and Permissions

Details the operator level password and its access capabilities.

Maintenance Procedures

Pre-Startup Inspection and Procedures

Outlines essential checks and procedures before the initial startup of the unit.

Flow Switch Installation and Calibration

Provides instructions for installing and calibrating the flow switch.

Flow Switch Wiring and Setup

Flow Switch Setup Procedure

Details the steps for setting up the flow switch, including the teach function.

Remote Flow Switch Mounting

Offers guidelines for mounting the flow switch remotely from the unit.

Flow Volume Calculation Reference

Teach Adjustment Complete Display

Explains the display indications after completing the flow switch teach adjustment.

Upper Range of Minimum Flow Display

Describes the display for the upper range of minimum flow adjustment.

Flow Switch Setpoint Adjustment Steps

Flow Switch Display Indicators

Explains the meaning of the flow switch's LED indicators for flow status.

Flow Above Display Range Indicator

Describes the indication when the flow is above the display range.

Unit Startup Procedures

Temporary Shutdown Procedure

Details the steps for performing a temporary shutdown of the unit.

Startup After Temporary Shutdown

Outlines the steps to restart the unit after a temporary shutdown.

Vibration Monitoring

Compressor Lubrication and Oil Handling

Discusses the type of oil used for compressor lubrication and handling precautions.

Oil Filter Maintenance Procedure

Explains the procedure for removing and renewing the oil filter.

Oil Filter Disassembly and Reassembly

New Oil Filter Element Reassembly

Details the steps for reassembling the oil filter housing with a new element.

Electrical Terminals Inspection and Tightening

Advises on periodically checking and tightening electrical terminals.

Chilled Water Pump Operation

Compressor VFD Inspection Points

Lists inspection areas for the compressor VFD, including general, wiring, terminals, and relays.

Planned Maintenance Schedule

Provides a schedule for weekly, monthly, and annual maintenance tasks.

Appendix

Limited Product Warranty Information

Outlines the terms and conditions of the product's limited warranty.

Pre-Start Checklist

Pre-Start Electrical Checks

Lists essential electrical checks to be performed before startup.

Pre-Start Miscellaneous Checks

Details various miscellaneous checks required before unit startup.

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