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Daikin EWAQ021BAW - User Manual

Daikin EWAQ021BAW
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INSTALLATION AND
OPERATION MANUAL
EWAQ016BAW
EWAQ021BAW
EWAQ025BAW
EWAQ032BAW
EWAQ040BAW
EWAQ050BAW
EWAQ064BAW
EWYQ016BAW
EWYQ021BAW
EWYQ025BAW
EWYQ032BAW
EWYQ040BAW
EWYQ050BAW
EWYQ064BAW
Packaged air-cooled water chiller
4PWEN70082-1C.book Page 1 Wednesday, September 25, 2013 7:31 AM

Table of Contents

Other manuals for Daikin EWAQ021BAW

Preview: Service Manual
Service Manual228 pages

Questions and Answers

  • J
    Jeffery EvansAug 20, 2025
    What to do if Daikin Chiller shows error code E3?
    • M
      mollyalvarezAug 20, 2025
      If your Daikin Chiller displays error code E3, it indicates a high-pressure error, possibly due to air in the circuit. Ensure the circuit is filled with water and that there is no air inside. Also, confirm that water flow is possible by opening all valves and verifying the water filter isn't blocked. Additionally, ensure all refrigerant stop valves are open. If the issue persists, contact your local dealer.
  • T
    Traci BishopAug 22, 2025
    How to fix Daikin Chiller error code U1?
    • A
      Amanda WhiteAug 22, 2025
      Daikin Chiller error code U1 means the phases of the power to the unit are reversed. To fix this, exchange two of the three phases (L1, L2, L3) to make a positive phase connection.
  • K
    karendavisAug 25, 2025
    What to do if Daikin EWAQ021BAW Chiller displays error code A6?
    • L
      Lisa GonzalezAug 25, 2025
      Daikin Chiller error code A6 indicates a malfunction in the water circuit. Ensure water flow is possible by opening all valves in the circuit and force clean water through the unit.
  • J
    Jeremy WattsAug 26, 2025
    What does Daikin EWAQ021BAW error code AE mean?
    • T
      Thomas SandersAug 27, 2025
      Daikin Chiller error code AE is a water system warning. To address this, check the filter, ensure all valves are open, and contact your local dealer if the problem continues.
  • C
    charlesdennisAug 28, 2025
    What causes Daikin EWAQ021BAW Chiller error code U2?
    • A
      anthony56Aug 28, 2025
      Daikin Chiller error code U2 indicates a power supply error. Check the wiring connections and contact your local dealer.
  • L
    Larry MurphyAug 30, 2025
    What does Daikin Chiller error code A9 mean?
    • C
      Caroline VelazquezAug 30, 2025
      Daikin Chiller error code A9 indicates an R410A expansion valve error. Check the wiring connections and contact your local dealer.
  • S
    Sarah MirandaSep 1, 2025
    What does Daikin Chiller error code C4 mean?
    • J
      Jacqueline LowerySep 1, 2025
      Daikin Chiller error code C4 indicates an R410A liquid thermistor error. Check the wiring connections and contact your local dealer.
  • C
    Christina RaySep 3, 2025
    What to do for Daikin EWAQ021BAW Chiller error code J7?
    • B
      Brian StanleySep 3, 2025
      Daikin Chiller error code J7 indicates an R410A suction thermistor error. Check the wiring connections and contact your local dealer.
  • S
    Steven ProctorSep 5, 2025
    What does Daikin Chiller error code C9 mean?
    • Q
      qpeckSep 5, 2025
      Daikin Chiller error code C9 indicates a returning water thermistor error. Check the wiring connections and contact your local dealer.
  • W
    William StevensSep 7, 2025
    What does Daikin EWAQ021BAW Chiller error code CA mean?
    • G
      garciakristenSep 7, 2025
      Daikin Chiller error code CA is a heating leaving water thermistor error. Check the wiring connections and contact your local dealer.

Summary

Installation and Operation Manual

Precautions for Installation

Electrical Shock and High Temperature Dangers

Warnings about handling electrical parts and hot/cold components.

Installation Location Requirements

Water Piping Preparation

Notes on closed water systems and corrosion prevention.

Electrical Wiring Preparation

Safety and Installation Guidelines

Details on earth connection, dedicated circuits, and capacitor use.

Installing the Chiller

Unit Installation and Placement

Guidance on lifting and leveling the unit on its foundation.

Hydraulic System and Wiring

Water Piping Work Connection

Guidelines for connecting water pipes and preventing issues.

Water Piping Work

Connecting the Water Pipes

Guidelines for connecting water pipes, sealants, and regulators.

Water Volume and Expansion Vessel Pre-Pressure

Checking water volume and adjusting expansion vessel pre-pressure.

Water Circuit Protection and Glycol Use

Protecting the Water Circuit Against Freezing

Methods for preventing freezing, including heater tape and glycol.

Use of Glycol

Information on glycol concentration and precautions.

Remote Controller Connection and Optional Equipment

Commissioning the Chiller - Installation Verification

Checklist for ensuring installation is complete and correct.

Commissioning: Installation Verification Checklist

Field Wiring, Fuses, Earth, and Internal Wiring Checks

Unit Installation, Leak, and Voltage Checks

Air Purge, Shut-off Valves, and Power Checks

Unit Configuration and Field Settings

Final Air Purging and Outdoor Module Settings

Remote Controller Field Settings

Accessing and programming field settings via the remote controller.

Field Setting Procedure

Step-by-step guide to changing field settings on the remote controller.

Remote Controller Field Settings Details

User Permission Level and Compensation Settings

Schedule Timer Settings for Space Heating

Unit Operation Settings

Freeze-up Prevention and Temperature Compensation

Glycol Concentration and Temperature Limits

Service Mode: Pump Operation

Final Checks and Test Run

Final Installation Checks

Final checks before unit startup.

Unit Test Run Procedure

Procedure for performing unit test runs.

Heating;Cooling Test Run Procedure

Steps to perform test runs for heating and cooling.

Handover to User

Final steps before handing over the unit to the user.

Cooling Operation Modes

Leaving Water Temperature Control

Heating Operation Modes and Setback Function

Automatic Setback Function

Function for lowering room temperature during specific times.

Heating Control and Weather Dependent Set Point

Remote Controller Buttons and Icons

Explanation of Controller Buttons and Icons

Explains all buttons and icons on the remote controller.

Remote Controller Functions

Programming and Schedule Timer Buttons

Setting Controller Clock and Schedule Timer

Procedure to set the clock and schedule timer.

Space Cooling Operation Modes

Room Temperature Control for Cooling

Cooling and Heating Operation Modes

Leaving Water Temperature Control for Cooling

Room Temperature Control for Heating

Heating Control Methods

Leaving Water Temperature Control Details

Weather Dependent Set Point Operation

Setting operation based on outdoor temp for heating.

Schedule Timer and Quiet Mode Programming

Schedule Timer Operation

Quiet Mode Operation

Schedule Timer Programming and Options

Schedule Timer Operation Details

Programming and Consulting Schedule Timer

Steps to program and view schedule timer actions.

Schedule Timer Programming Guide

Programming Space Timer

Steps to program space cooling or heating schedule timer.

Tips for Programming

Programming Space Settings

Space Cooling Programming Steps

Steps to program space cooling settings.

Programming Space Heating Settings

Space Heating Programming Steps

Steps to program space heating settings.

Schedule Timer Actions and Options

Consulting Programmed Actions

Programming Tips and Tricks

Managing Programmed Actions and Optional Controls

Deleting Programmed Actions, Modes, and Days

Field Settings Procedure

Procedure for Changing Field Settings

Steps to change field settings on the remote controller.

Field Settings Table

List of Field Settings and Default Values

Lists all field settings, defaults, and ranges.

Field Settings Table Continued

Continuation of Field Settings Table

Continuation of the field settings table.

Maintenance and Troubleshooting

Maintenance Activities

Troubleshooting Common Issues

Guidelines for solving common problems.

Daikin EWAQ021BAW Specifications

General IconGeneral
BrandDaikin
ModelEWAQ021BAW
CategoryChiller
LanguageEnglish

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