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McQuay ACZ 039A

McQuay ACZ 039A
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Installation, Operation and Maintenance Manual
IOMM ACZ1
Group:
Chiller
Part Number
: 330262002
Effective:
December 2001
Supersedes:
New
Air-Cooled Scroll Condensing Units
ACZ 010A – ACZ 039A
10 to 43 Tons, 35 to 150 kW
R-22, 60 Hertz

Questions and Answers:

McQuay ACZ 039A Specifications

General IconGeneral
BrandMcQuay
ModelACZ 039A
CategoryHeat Pump
LanguageEnglish

Summary

Unit Installation and Initial Setup

Introduction and General Description

Provides an overview of the unit's features, assembly, and basic operation.

Installation and Handling Procedures

Covers unit placement, handling, clearances, and vibration isolation for proper installation.

Chilled Water System Requirements

Covers water piping, system volume, and flow switch installation for water-cooled applications.

Refrigerant System and Components

Refrigerant Piping Guidelines

Details on sizing, routing, and installation of refrigerant piping for optimal performance.

Liquid Line Installation Details

Specific guidance on sizing and installation of liquid refrigerant lines.

Unit Component Location

Identifies the location of key components within the unit.

Unit Specifications and Data

Physical Data Tables

Detailed tables on unit dimensions, weights, and capacities for different models.

Electrical Data and Wiring

Information on power supply, wiring requirements, and electrical schematics.

Dimensional Data and Diagrams

Visual representations and measurements of unit sizes and connection points.

Control System Operation

Control Center and Layout

Describes the main electrical control panel and its components.

Start-up, Shutdown, and Sequence

Procedures for initial unit startup, normal shutdown, and operational sequences.

MicroTech II Controller Functions

Explains the controller's features, inputs, outputs, setpoints, and alarms.

Using the Controller Interface

Guidance on navigating menus, changing setpoints, and understanding the display.

System Maintenance and Service

System Maintenance Procedures

Routine checks and maintenance for condensers and refrigerant sightglass.

Service and Repair Information

Details on servicing expansion valves, filter-driers, and solenoids.

Optional Controls and Features

Information on SpeedTrol and Hot Gas Bypass systems for enhanced operation.

Troubleshooting and Alarms

Unit Alarms and Limits

Details on shutdown alarms, limit alarms, and unit enable conditions.

Troubleshooting Common Issues

A chart detailing problems, causes, and corrective actions for unit malfunctions.

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