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McQuay SWT C Series User Manual

McQuay SWT C Series
44 pages
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© 2002 McQuay International
Self-contained Air Conditioning System
Type SWT “C” Vintage Sizes 18 thru 40
Installation and Maintenance IM-709
Group: Applied Systems
Part Number: IM709
Date: January 2002
MEA
368-93-E

Table of Contents

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McQuay SWT C Series Specifications

General IconGeneral
BrandMcQuay
ModelSWT C Series
CategoryAir Conditioner
LanguageEnglish

Summary

Installation Procedures for Air Conditioning Units

Refrigerant Piping and Safety Precautions

Water Connections and Piping Guidelines

Condenser Piping Installation

Details on connecting condenser water supply and return lines.

Field Wiring Guidelines

Power Supply and Wiring Requirements

Supply Power Wiring and Voltage

Requirements for three-phase power supply and voltage tolerances.

Disconnect and Lug Sizing

Information on single disconnect and power block lug sizes.

Control Center Layout and Components

High and Low Voltage Compartments

Description of the control center's layout and housed components.

Typical Wiring Schematics Overview

Power Schematic Diagram

Diagram illustrating the unit's power wiring connections.

Standard Unit Controls and Safety Features

High Pressure Switches

Function and operation of high pressure safety switches.

Low Pressure Switches

Function and operation of low pressure safety switches.

Compressor Motor Protector

Description of thermal protection for compressor motors.

Proof of Airflow Switch

Operation of the airflow proving switch for fan safety.

Frost Protection Switches

Function of frost protection switches to prevent coil freezing.

Clogged Filter Switch

Operation of the clogged filter switch for filter replacement indication.

Unit Options and Special Features

Additional Unit Options and Features

System Check, Test, and Start Procedures

Fan Start-up Procedure

Steps to start and verify the supply air fan operation.

Variable Air Volume (VAV) Start-up

Adjusting VAV parameters for optimal airflow control.

Pre Start-up Checks

Pre-operational checks before unit startup.

Compressor Start-up Procedure

Steps for starting compressors and verifying operation.

Initial Unit Start-up

Steps for initial unit startup and verification.

Expansion Valve Superheat Adjustment

Procedure for adjusting expansion valve superheat for optimal performance.

Refrigerant Charge Calculation and Verification

System Maintenance and Servicing

Preventative Maintenance Schedule

Routine maintenance tasks to ensure optimal system performance.

Replacement Parts Identification

Service and Warranty Procedures

Product Warranty Terms

Details on the company's product warranty coverage.

System Check, Test, and Start Form

Start-up Procedures Checklist

Checklist for verifying start-up operations.

System Check, Test, and Start Form Readings

Compressor Readings and Settings

Fields for recording compressor performance data.

System Check, Test, and Start Form Controls

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