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Daikin WMC User Manual

Daikin WMC
68 pages
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Installation, Operation,
and Maintenance Manual
Magnitude
®
Magnetic Bearing Centrifugal Chillers
Model WMC, C Vintage
125 to 400 Tons (440 to 1400 kW)
HFC-134a Refrigerant
50/60 Hz
IOM 1210-1
Group: Chiller
Part Number: IOM1210-1
Date: August 2014

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Daikin WMC Specifications

General IconGeneral
BrandDaikin
ModelWMC
CategoryChiller
LanguageEnglish

Summary

Pre-Start Checklist

Chilled Water Checklist

Checklist items for chilled water system readiness prior to startup.

Condenser Water Checklist

Checklist items for condenser water system readiness prior to startup.

Electrical Checklist

Checklist items for electrical system readiness prior to startup.

Miscellaneous Checklist Items

General readiness checklist items for chiller installation.

Introduction

Hazard Identification Information

Describes DANGER, WARNING, and CAUTION symbols used in the manual.

General Description

Overview of Magnitude® chillers, features, and capabilities.

Nomenclature

Explanation of chiller model naming conventions and codes.

The Control System

Overview of the MicroTech® II control system components.

Operator Interface Touch Screen (OITS)

Primary device for unit monitoring, control, and data entry.

Unit Controller

Controller for acquiring and processing chiller operation data.

Installation

Receiving and Handling

Procedures for inspecting, rigging, and moving the chiller unit.

Location Requirements

Guidelines for selecting an appropriate installation site for the chiller.

Clearance Requirements

Minimum space needed around the unit for service and ventilation.

Unit Dimensions and Shipping Weight

Physical size and weight specifications for various chiller models.

Mounting Instructions

Guidance on securing the chiller to its base or structural support.

Water Piping Requirements

Specifications for connecting chilled and condenser water piping.

Condenser Water Temperature Control

Methods for managing condenser water temperature for optimal performance.

Relief Valves

Description and function of safety pressure relief valves.

Field Insulation

Requirements and guidance for field-applied thermal insulation.

Field Power Wiring

Instructions and safety precautions for electrical power connections.

Wiring Index

Reference for all wiring diagrams, legends, and field connections.

Controller Box Wiring

Diagram detailing electrical connections within the controller box.

Power Box Wiring

Diagrams for single and multi-point power distribution wiring.

Communication Setup for Multiple Chillers

Steps for interconnecting multiple chillers via LAN.

Operation

Operator Responsibilities

Duties and recommendations for chiller operators during startup and operation.

Sequence of Unit Operation

Step-by-step process of chiller startup, loading, and shutdown.

Unit Enabling/Disabling

Methods to start, stop, and disable the chiller and its compressors.

Operator Interface Touch Screen (OITS)

Guidance on using the OITS panel for monitoring and control.

Home View Screen

Description of the primary display screen on the OITS.

Detail View Screen

Screen displaying detailed operational data for the chiller and compressors.

SET SCREENS

Accessing and modifying unit setpoints via the OITS.

TIMERS Setpoints

Configuration of operational timers for various functions.

ALARMS Setpoints

Setting alarm thresholds, limits, and trip points.

WATER Setpoints

Configuration of water temperature setpoints and related parameters.

HISTORY Screens

Accessing and viewing logged operational and alarm data.

Possible Alarms and Events

Categorization and explanation of unit alarms and events.

The Controller

Information on the unit controller interface and navigation.

Editing Fields on the Controller

Procedure for modifying parameters using the controller keypad.

Setting Passwords

How to access controller functions using operator or manager passwords.

Configuring the Control Source

Setting the primary control input for the chiller.

Clearing Alarms

Procedure to acknowledge and clear active alarms on the controller.

Controller Setpoints

Summary of all available controller setpoints and their parameters.

Maintenance

Chiller Maintenance Procedures

General maintenance tasks and safety precautions for the chiller.

Water Treatment Importance

Guidelines for water treatment to prevent corrosion and scaling.

Seasonal Shutdown Procedures

Steps for preparing the chiller for periods of non-operation.

Seasonal Startup Procedures

Steps for preparing the chiller for operation after shutdown.

Recommended Maintenance Schedule

Overview of recommended maintenance tasks and their frequencies.

Appendix

Definitions of Technical Terms

Glossary of technical terms and acronyms used in the manual.

HFC-134a Temperature / Pressure Chart

Table of HFC-134a refrigerant saturation temperatures and pressures.

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