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Daikin Hydrocube EWLP012KAW1N - User Manual

Daikin Hydrocube EWLP012KAW1N
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OPERATION MANUAL
EWLP012KAW1N
EWLP020KAW1N
EWLP026KAW1N
EWLP030KAW1N
EWLP040KAW1N
EWLP055KAW1N
EWLP065KAW1N
Condenserless water-cooled water chillers

Table of Contents

Questions and Answers

  • A
    amber46Aug 3, 2025
    What to do if my Daikin Chiller unit doesn't start and the T LED lights up?
    • D
      Diana BishopAug 4, 2025
      If your Daikin Chiller unit doesn't start but the T LED is lit, there might be several reasons: * The temperature setting may be incorrect. Check the controller setpoint. * There could be a power supply failure. Verify the voltage on the supply panel. * A fuse might be blown, or a protection device interrupted. Inspect fuses and protection devices, replacing any blown fuses with the same size and type. * Loose connections could be the issue. Inspect and tighten connections of the field wiring and the internal wiring of the unit. * Shorted or broken wires might be present. Test circuits using a tester and repair if necessary.
  • D
    drogersAug 10, 2025
    What to do if a safety device is activated in my Daikin Hydrocube EWLP012KAW1N - Overcurrent relay of compressor?
    • C
      Christopher MorrisAug 10, 2025
      If the overcurrent relay of the compressor is activated in your Daikin Chiller, it could be due to several reasons: * A failure of one of the phases. Check fuses on the supply panel or measure the supply voltage. * Voltage too low. Measure the supply voltage. * Overload of motor. Reset. If the failure persists, call your local dealer. * Additionally, push the red button on the over-current relay inside the switch box. Remember to reset the controller as well.
  • N
    Nancy MortonAug 15, 2025
    What to do if my Daikin Hydrocube EWLP012KAW1N unit doesn't start and the T LED is flashing?
    • J
      Jimmy OdomAug 15, 2025
      If your Daikin Chiller unit doesn't start and the T LED is flashing, it could be due to: * The flowstart timer still running. The unit will start after approximately 15 seconds. Ensure water is flowing through the evaporator. * The anti-recycling timer being active. The circuit can only start up after approximately 4 minutes. * The guard timer is still active. The circuit can only start up after approximately 1 minute.
  • C
    christinahallAug 21, 2025
    What to do if a safety device is activated in my Daikin Chiller - Low pressure switch or anti-freeze alarm?
    • J
      Joanne CarsonAug 21, 2025
      If the low pressure switch or anti-freeze alarm is activated on your Daikin Chiller, consider the following: * Water flow to the water heat exchanger might be too low. Increase the water flow. * There could be a shortage of refrigerant. Check for leaks and refill refrigerant if needed. * The unit may be operating outside of its intended range. Check the operation conditions of the unit. * The inlet temperature to the water heat exchanger could be too low. Increase the inlet water temperature. * The flow switch might not be working, or there could be no water flow. Check the flow switch and the water pump. After pressure rise, the low pressure switch resets automatically, but the controller still needs to be reset.
  • A
    Amanda PayneAug 27, 2025
    Why won't my Daikin Chiller start and the T LED doesn't light up?
    • T
      Timothy DoyleAug 27, 2025
      If your Daikin Chiller unit doesn't start and the T LED does not light up, it could be due to: * One of the safety devices being activated, such as the reverse phase protector, overcurrent relay (K*S), discharge thermal protector (Q*D), evaporating temperature thermostat (S*T), flow switch (S10L), or high-pressure switch (S*HP). Check on the controller. * The unit being in anti-freeze alarm. Check on the controller. * The remote ON/OFF input being enabled with the remote switch off. Put the remote switch on or disable the remote ON/OFF input. * The keyboard being locked because the user parameter h9 is set to 0. Unlock the controller keyboard.

Summary

Introduction

Technical Specifications

General EWLP Models

Details general specifications for EWLP models.

Compressor Specifications

Provides technical data for the compressor.

Evaporator Specifications

Details evaporator technical data.

Condenser Specifications

Outlines condenser technical data.

Electrical Specifications

Power Supply Details

Covers voltage, phase, and fuse requirements.

Compressor Electricals

Electrical parameters for the compressor.

Control Circuit Electricals

Electrical specifications for the control system.

Unit Description and Components

Main Components Overview

Identifies and lists the main physical components of the unit.

Function of Main Components

Explains the role and operation of each key component.

Safety Devices

Lists and describes the unit's safety features.

Before Operation

Initial Start-Up Checks

Essential checks before powering on the unit for the first time.

Water Supply Requirements

Guidelines for proper water supply setup and quality.

Power Supply Connection & Crankcase Heating

Procedures for connecting power and enabling crankcase heating.

General Recommendations

Important general advice before unit operation.

Operation

Digital Controller User Interface

Explains the controller display, keys, and LEDs.

Working with EWLP Units

Routine tasks like switching on/off and adjusting setpoints.

Switching the Unit On and Off

Step-by-step instructions for unit power control.

Operational Checks

Monitoring for abnormal noise, vibrations, and working pressure.

Adjusting Cooling Setpoint

How to modify the desired cooling temperature.

Consulting Operational Information

Accessing real-time unit performance data.

Resetting Alarms and Warnings

Resetting Alarms

Procedure to acknowledge and resolve unit alarms.

Resetting Warnings

How to clear maintenance or operational warnings.

Advanced Controller Features

Parameter Overview (Direct & User)

Introduces direct and user parameters for configuration.

Defining Cooling Temperature Difference

Setting the temperature differential for cooling control.

Defining Time Delays

Configuring startup and shutdown time delays.

Defining Measurement Unit

Setting display units for temperature (Ā°C or Ā°F).

Timer Thresholds and Buzzer Settings

Configuring maintenance timers and buzzer behavior.

Remote Control and Keyboard Lock

Options for remote operation and controller security.

Defining Unit Serial Address

Setting the address for supervisory system communication.

Troubleshooting

Unit Start-up Issues

Diagnosing problems when the unit fails to start.

Safety Device Activation

Identifying causes and solutions when safety devices trigger.

Operational Problems

Addressing issues like continuous running or excessive noise.

Maintenance

Maintenance Activities Checklist

Regular checks and inspections for unit upkeep.

Disposal Requirements

Proper procedures for unit dismantling and disposal.

Annex I - Saturated Temperature Data

High Pressure Side Data

Chart showing saturated temperature vs. pressure.

Low Pressure Side Data

Chart showing saturated temperature vs. pressure.

Daikin Hydrocube EWLP012KAW1N Specifications

General IconGeneral
BrandDaikin
ModelHydrocube EWLP012KAW1N
CategoryChiller
LanguageEnglish

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