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Daikin ZUWCM/DM User Manual

Daikin ZUWCM/DM
54 pages
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Single Screw Chillers
This manual is applicable to following models and their derived and
modified models.
ZUWCM/DM ZUW.C-B ZUWY ZUWV ZUW-HCA
Thanks for purchasing DAIKIN chiller.
The Manual specifies safety, installation and maintenance precautions.
Please read through the manual before installation and use.
For future reference, please be sure to keep it safe.
Engineered for Flexibility and performance
IMM Chiller universal part
Category: Single Screw Chiller
Date: Mar. 2019
New Part No.: Z8100180-09
Prior Part No.: Z8100180-08
Engineering Data
(Installation, Maintenance Manual)

Table of Contents

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Daikin ZUWCM/DM Specifications

General IconGeneral
BrandDaikin
ModelZUWCM/DM
CategoryChiller
LanguageEnglish

Summary

Safety Matters

1. Nomenclature

1.1 Water Cooled Single Screw Chiller (Flooded)

Nomenclature for flooded type water-cooled single screw chillers.

1.2 Water Cooled Single Screw Chiller (Falling-film)

Nomenclature for falling-film type water-cooled single screw chillers.

1.3 Water Cooled Single Screw Chiller (New Platform for ZUW-HCA)

Nomenclature for new platform water-cooled single screw chillers.

2. Major Component Locations

3. Working Principles

3.1 Working principles of single screw chiller without Flash-tank Economizer

Explains operation of single screw chillers without a Flash-tank Economizer.

3.2 Working principles of single screw chiller with Flash-tank Economizer

Explains operation of single screw chillers with a Flash-tank Economizer.

4. Safety (Please follow the following content strictly)

4.1 Precautions during Installation

Safety measures to be taken during the installation process.

4.2 Precautions during Use

Safety measures to be taken during chiller operation.

4.3 Precautions during Relocation and Repair

Safety measures for moving or repairing the chiller.

4.4 Notes for Relief Valve

Important notes and guidelines for relief valve installation and operation.

5. Chiller transit

5.1 Checking items after chiller arrival

Procedures for inspecting the chiller upon delivery.

5.2 Chiller Lifting

Methods and guidelines for safely lifting the chiller unit.

5.3 Lifting Requirements of Chiller

Specific requirements and safety precautions for lifting the chiller.

5.4 Horizontal transiting

Precautions and methods for moving the chiller horizontally.

6. Installation

6.1 Chiller location and foundation

Guidelines for selecting the installation site and preparing the foundation.

6.2 Knockdown of Chiller

Procedures for dismantling and reassembling the chiller for installation.

6.3 Piping of the chillers

Instructions and diagrams for connecting the chiller's water piping.

6.4 Electric Works

Guidelines for electrical connections, wiring, and grounding.

7. Matters to be Confirmed before Test Run

7.1 Inspect the power circuit (please confirm before it being powered up)

Checks for the power circuit before energizing the chiller.

7.2 Acknowledgement of cables (before being powered up)

Verification of cable connections and interlocks before power-up.

7.3 Power supply check

Ensuring the power supply meets specified voltage and frequency requirements.

7.4 Water system check

Procedures for checking the chiller's water system before operation.

7.5 Check chiller

Verifying the status of all valves before starting the chiller.

7.6 Panel setting check

Verifying control panel settings match the customer's system.

8. Functions of Chiller

8.1 Automatic control of water-temperature for the chillers

Explains the PID control for automatic water temperature regulation.

8.2 Chiller capacity control under low cooling load

Describes how the chiller manages capacity at low cooling loads.

8.3 Limits of Start/Stop

Details the operational limits for chiller start and stop cycles.

9. Maintenance

9.1 Regular Maintenance of Protective Device, etc.

Maintenance procedures for protective devices and overall system.

9.2 Pre-maintenance

Steps to take before commencing maintenance procedures.

9.3 Regular Maintenance

Routine checks and cleaning for maintaining chiller performance.

9.4 Maintenance Contract

Recommendation to sign a maintenance contract for service.

9.5 About Refrigerant and refrigeration Oil

Information on correct refrigerant and oil types and quantities.

9.6 Routine Maintenance

General guidelines for keeping the chiller running smoothly.

10. Precautions for Long-time Stop

11. Operating range

11.1 Standard Operating Environment

Specifies the standard environmental conditions for chiller operation.

11.2 Minimum Retaining Water Capacity of System

Defines the minimum required water capacity for system stability.

11.3 Water Quality for chiller

Details the importance and requirements of chilled and cooling water quality.

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