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Daikin Magnitude WME092CD User Manual

Daikin Magnitude WME092CD
60 pages
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Installation, Operation,
and Maintenance Manual
Magnitude
®
Magnetic Bearing Centrifugal Chillers
Model WME, C-vintage
400 to 1600 Tons (1400 to 5600 kW)
HFC-134a Refrigerant
IOM 1266-2
Group: Chiller
Part Number: IOM1266-2
Date: July 2019
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Daikin Magnitude WME092CD Specifications

General IconGeneral
BrandDaikin
ModelMagnitude WME092CD
CategoryChiller
LanguageEnglish

Summary

Introduction

The Control System

Description of the MicroTech® control system, HMI, and controllers.

Installation

Compressor Removal and Re-Attachment Instructions

Step-by-step guide for removing and re-attaching the compressor.

Condenser Water Temperature Control

Strategies for controlling condenser water temperature for optimal chiller performance.

Field Power Wiring

Instructions for field power wiring connections, including safety precautions.

RapidRestore® and RideThrough®

Explanation of features for rapid restart and maintaining operation during power loss.

Field Connections

Schematic for field wiring connections, including options and notes.

WME Unit Wiring Schematic

Detailed wiring schematic for the WME unit.

Operation

Sequence of Unit Operation

General sequence of operation for Magnitude® WME chillers.

Unit Enabling/Disabling and Overrides

Options for overriding normal chiller operation via HMI, BAS, or manual buttons.

Human Machine Interface (HMI)

Details on operating the chiller without the HMI and navigation summary.

Home View Screen

Overview of the Home View Screen, displaying basic operating conditions and consistent information.

Unit Detail View Screen

Detailed view of unit parameters including compressor, evaporator, and condenser information.

Compressor Details

Comprehensive display of compressor operating parameters and status.

SET Screens

Introduction to HMI setpoint screens for inputting various parameters.

Procedure for Changing a Setpoint

Step-by-step guide on how to change setpoints using the HMI interface.

Settings View - Water

Settings related to water temperature, delta T, and reset types.

Settings View - Modes

Settings for unit modes, control sources, and pump logic.

Settings View - Motor

Settings related to motor operation, demand limits, and compressor staging.

Settings View - Tower

Settings for cooling tower control strategies, fan staging, and valve control.

Tower Control Settings

Explanation of different tower control strategies available.

Settings View - Valves

Settings related to the expansion valve gain.

Settings View - Offsets

Settings for temperature and pressure offsets.

Settings View - Alarms

Settings related to alarms, including pressure and temperature thresholds.

Settings View - Commission

Commissioning settings, including IP configuration and IGV calibration.

Settings View - Interface

Settings for HMI interface, BAS protocols, and compressor capacity control.

Trend History Screen

How to access and view trend history data.

Alarms

Explanation of alarm types (Critical and Warning) and how they are displayed.

Clearing an Alarm

Procedures for clearing alarms, including auto-clear and manual clearing.

Downloading Trend and Alarm History

Steps for downloading trend and alarm history data via USB.

Table 23: Critical Alarms

Lists critical alarms, their triggers, and potential causes.

Controller Inputs and Outputs

Overview of unit controller analog and digital inputs and outputs.

Compressor Controller Inputs and Outputs

Overview of compressor controller analog inputs and digital/analog outputs.

Building Automation Systems (BAS)

Information on integrating chillers with BAS and available protocol options.

Startup and Maintenance

Flow Switch Installation and Calibration

Instructions for installing and calibrating the thermal dispersion flow switch.

Flow Switch Setup

Continued instructions for flow switch setup, including range adjustment and locking.

Chiller Maintenance

General maintenance procedures, including electrical system and cleaning.

Limited Product Warranty

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