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McQuay PDAC

McQuay PDAC
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Installation & Maintenance Data
Group: PTAC
Part No.: 668109501
Date: January 2008
IM 882
©2008 McQuay International
Applied Packaged Terminal Air Conditioner
16" x 42" PDAC/PDHP With Top-Mounted Hydronic Heat

Table of Contents

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McQuay PDAC Specifications

General IconGeneral
BrandMcQuay
ModelPDAC
CategoryAir Conditioner
LanguageEnglish

Summary

Safety and Inspection

Safety Warnings and Definitions

Details DANGER, WARNING, CAUTION and general safety practices.

Equipment Receiving and Damage Check

Procedures for checking shipments and identifying transit damage.

Product Information

Model Nomenclature and Interpretation

Explains the meaning of characters in the model number.

Introduction to McQuay PTACPTHP

Product Features and Benefits

Highlights advantages like longevity, reliability, and energy efficiency.

Dimensional Data

Unit and Sleeve Dimensions

Provides diagrams and tables for unit and wall sleeve dimensions.

Installation Procedures

Wall Opening and Sleeve Requirements

Specifies opening sizes and sleeve positioning for installation.

Louver and Extension Installation

Details installing louvers and wall sleeve extensions.

Wall Construction Types

Illustrates installation for panel, frame/brick, and masonry walls.

Wall Sleeve Installation Details

Covers thin wall, thick wall, and anchoring procedures.

Anchoring and Other Installation Steps

Covers anchoring, louvers, electrical, and chassis installation.

Heat Section, Cabinet, and Coil Installation

Details heat section, room cabinet, and coil connections.

Digital Control System

PDACPDHP Control Overview and Remote

Describes digital control, inputs, outputs, and remote operation.

Standard Digital Touchpad Controls

Operation Modes and Settings

Explains On/Off, temperature range, fan modes, and timer settings.

Remote Thermostat Mode

Details how the unit operates when controlled by a remote thermostat.

Standard Digital Touchpad Control Features

System Select, Lockout, and Operation Modes

Covers system selection, lockout, and description of modes.

Heat Mode, Configuration, and Limits

Explains heat modes, control configuration, and temperature limits.

Protective Logic and Freeze Protection

Covers compressor protection, anti-freeze, and room freeze protection.

Premium Digital Touchpad Controls

Control Operation and Features

Details application, inputs, outputs, keys, and display functions.

Clock Set and Configuration

Guides for setting clock, temperature scale, and limits.

Programming and Scheduling

Instructions for setting time periods and daily schedules.

Remote Wall Mounted Thermostats

Thermostat Types and Specifications

Describes non-programmable and programmable thermostat options.

Control Wiring Diagrams

Programmable Digital Control Wiring

Details jumper settings for system, fan, controller, and hydronic valve.

Premium Digital Control Board Wiring

Illustrates wiring for the premium digital control board.

Premium Digital Control Board with Standby Wiring

Shows wiring for the control board with standby feature.

Maintenance Procedures

Scheduled Maintenance Tasks

Outlines regular cleaning, checks, and chassis removal for upkeep.

Equipment Protection from Environment

Discusses preventing rust and corrosion from environmental factors.

Recommended Spare Parts

Lists suggested parts for stocking to minimize downtime.

Refrigeration Cycle Explanation

Describes the refrigeration cycle and its components.

Fault and Protection Codes

Control Board Fault and Protection Codes

Lists fault codes, descriptions, and causes for the control board.

Digital Control Display Codes

Explains local user interface display codes for status and faults.

Troubleshooting Guide

Common Operational Issues and Cures

Provides common problems, their causes, and recommended solutions.

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