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Daikin EWAQ040BAW - User Manual

Daikin EWAQ040BAW
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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 EWAQ040BAW

Preview: Service Manual
Service Manual228 pages

Questions and Answers

  • C
    Christopher McconnellAug 20, 2025
    What to do if Daikin Chiller shows error code E3?
    • V
      vbarnesAug 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.
  • M
    myersannAug 22, 2025
    How to fix Daikin EWAQ040BAW Chiller error code U1?
    • G
      Gerald RileyAug 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.
  • M
    Misty PetersonAug 25, 2025
    What to do if Daikin EWAQ040BAW Chiller displays error code A6?
    • A
      Austin OliverAug 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
    Jenna EdwardsAug 27, 2025
    What does Daikin EWAQ040BAW error code AE mean?
    • D
      deborahkingAug 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
    corylindseyAug 28, 2025
    What causes Daikin EWAQ040BAW Chiller error code U2?
    • C
      Christopher GarciaAug 28, 2025
      Daikin Chiller error code U2 indicates a power supply error. Check the wiring connections and contact your local dealer.
  • J
    Jennifer NguyenAug 30, 2025
    What does Daikin EWAQ040BAW Chiller error code A9 mean?
    • J
      Jerry LyonsAug 30, 2025
      Daikin Chiller error code A9 indicates an R410A expansion valve error. Check the wiring connections and contact your local dealer.
  • T
    tiffany46Sep 1, 2025
    What does Daikin EWAQ040BAW Chiller error code C4 mean?
    • Y
      Yolanda WelchSep 1, 2025
      Daikin Chiller error code C4 indicates an R410A liquid thermistor error. Check the wiring connections and contact your local dealer.
  • B
    Brandon WattsSep 3, 2025
    What to do for Daikin Chiller error code J7?
    • J
      Jessica KhanSep 3, 2025
      Daikin Chiller error code J7 indicates an R410A suction thermistor error. Check the wiring connections and contact your local dealer.
  • S
    Shannon PhelpsSep 5, 2025
    What does Daikin EWAQ040BAW error code C9 mean?
    • M
      meghan42Sep 5, 2025
      Daikin Chiller error code C9 indicates a returning water thermistor error. Check the wiring connections and contact your local dealer.
  • A
    Adrian BuckSep 7, 2025
    What does Daikin EWAQ040BAW Chiller error code CA mean?
    • A
      Anthony CarterSep 7, 2025
      Daikin Chiller error code CA is a heating leaving water thermistor error. Check the wiring connections and contact your local dealer.

Summary

2. PRECAUTIONS FOR INSTALLATION

Electrical and Temperature Safety Warnings

Emphasizes switching off power, avoiding hot parts, and managing alarm settings for safe operation.

3. PREPARATION FOR INSTALLATION

3.2. Verify Installation Location

Discusses site selection, animal deterrence, public access restrictions, environmental factors, and cold climate considerations.

3.5. Prepare Water Piping Work

3.6. Prepare Electrical Wiring

4. INSTALL THE CHILLER

4.2. Unit Installation

4.5. Perform Water Piping Work

4.5.1. Connecting Water Pipes

Details precautions for connecting water pipes, including material compatibility, thread sealant, and flow regulation.

4.5.4. Check Water Volume and Expansion Vessel Pre-pressure

4.5.5. Protect Water Circuit Against Freezing

Use of Glycol

4.5.6. Fill Water Circuit

4.6. Connect Electrical Wiring

4.6.4. System Overview of Field Wiring

4.6.5. Connect Power Supply and Communication Cables

4.6.7. Install Remote Controller

5. COMMISSIONING THE CHILLER

5.1. Verify Completion of Installation

Lists essential checks before powering up the unit, including wiring, earth connection, and component integrity.

5.2. Configure the Unit

5.2.1. Final Air Purging

Explains using field setting [E-04] for pump-only operation to effectively remove air from the water circuit.

5.2.3. Field Settings on the Remote Controller

5.2.4. Procedure

[3] Weather Dependent Set Point

[3-02] Set Point at Low Ambient Temperature (Lo_Ti)

Specifies the target water temperature at low ambient conditions for optimal heating performance.

[3-03] Set Point at High Ambient Temperature (Hi_Ti)

Specifies the target water temperature at high ambient conditions for efficient cooling/heating.

[5] Automatic Setback

[8-04] Freeze-up Prevention

[9] Automatic Temperature Compensation

[C] Leaving Water Temperature Limits

[E-04] Pump Only Operation (Air Purge Function)

5.3. Final Check and Test Run

5.3.1. Final Check

Lists essential checks before unit startup, including panel closure, electrical safety, and component integrity.

5.3.2. Unit Test Run

Outlines procedures for performing unit test runs for heating/cooling operations and verifying performance.

5.4. Handover to the User

2. GENERAL SAFETY PRECAUTIONS

4. QUICK START-UP OF THE UNIT

4.1. Space Cooling;Heating Operation

Provides a step-by-step guide for initial setup of space cooling and heating operations.

5. OPERATING THE UNIT

5.1. Operating the Remote Controller

Explains the remote controller's role in full control of the installation, including basic functions and features.

5.1.2. Basic Controller Functions

5.1.4. Schedule Timer Function

5.2. Name and Function of Buttons and Icons

7. MAINTENANCE AND TROUBLESHOOTING

7.2. Maintenance Activities

8.1. Error Codes

Lists error codes, their causes, and corrective actions for diagnosing and resolving unit issues.

6. FIELD SETTINGS

6.1. Procedure

Provides a step-by-step guide for accessing and changing field settings using the remote controller.

6.1.1. Field Settings Table

6.1.1. Field Settings Table (Continued)

Daikin EWAQ040BAW Specifications

General IconGeneral
BrandDaikin
ModelEWAQ040BAW
CategoryChiller
LanguageEnglish

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