MrCool MDUI18060 - User Manual

Universal
®
Series
Air Handler | 4-5 Ton
Model - MDUI18048/MDUI18060
Please read this manual carefully before installation and keep it for future reference.
Copyright © 2020 MRCOOL, LLC | v7.02.20
Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference.
Owner’s Manual

Summary

Safety Precautions

Pre-Installation Safety Overview

Essential safety information and hazard classifications for installation.

Installation and Operation Warnings

Detailed warnings for installation, operation, and refrigerant handling.

Cautionary Instructions for Use

Specific cautionary advice for unit operation, cleaning, and storage.

Appliance Overview

Introduction and Welcome

Welcome message and important introductory information for new users.

Accessories List

Lists and describes the included parts and optional accessories for the air handler.

Unit Dimensions and Specifications

Provides physical dimensions and measurements of the air handler unit.

Key Component Identification

Identifies and illustrates the main components of the air handler unit.

Unit Installation

Installation Preparation and Codes

Covers product checks, pre-installation steps, and compliance with codes.

Installation Location Requirements

Specifies suitable locations and restrictions for installing the air handler.

Conventional Line Set Installation

Detailed steps for installing the conventional weld or flare line set.

No-Vac Quick Connect Line Set Installation

Step-by-step guide for installing the No-Vac Quick Connect line set.

Condensate Removal Procedure

Instructions for properly installing the condensate drain pipe and trap.

Ductwork Installation

Guidelines for installing supply and return ductwork, including air filters.

Electric Heater Installation

Information on installing an optional electric heater kit.

Electric Heater Installation Precautions

Cautions and important considerations for installing the electric heater kit.

Air Handler Capacity Conversion

Instructions for converting the unit's capacity from 5 ton to 4 ton.

Electrical Connection Regulations

Important safety regulations and precautions for electrical work.

Electrical Parameters and Specifications

Details electrical requirements, wire gauges, and circuit breaker specifications.

Connecting Power and Thermostat Wires

Steps for connecting power cords and thermostat wires for different wire types.

Electrical Wiring Diagrams and Warnings

Provides wiring diagrams and critical warnings for electrical connections.

Terminal Wiring Procedures

Illustrates methods for terminal wiring using insulation tubes and clamps.

Single-Phase Unit Electrical Wiring

Shows the specific electrical wiring diagram for single-phase units.

Post Installation Checks

Pre-Test Run Checks

Lists essential checks before performing the unit's test run.

Test Run Procedure

Steps for preparing the unit and conducting the test run after installation.

Troubleshooting

Common Problems and Solutions

Addresses issues like unit not activating or stopping, and cooling/heating problems.

Normal Operational Scenarios

Describes normal operational situations that might be mistaken for failures.

Error Code Explanations

Lists and explains various error codes displayed by the unit.

Additional Error Code Explanations

Continues listing and explaining unit error codes.

Maintenance and Care

Drain Pipe Maintenance

Guidance on regularly checking the drain pipe for clogs.

Seasonal Maintenance Procedures

Instructions for maintenance before and after seasonal use.

Parts Replacement and Support

Information on purchasing parts and contacting technical support.

EU Disposal Guidelines

Appliance Disposal Procedures

Guidelines for disposing of the appliance according to EU regulations.

MrCool MDUI18060 Specifications

General

Model	MDUI18060
Type	Air Handler
Refrigerant	R410A
Airflow	2000 CFM
Voltage	208/230V
Phase	1
Hertz	60 Hz