McQuay MLC050CR

Questions and Answers:

M
Michelle WoodwardAug 12, 2025
What to do if my McQuay MLC050CR unit does not operate?
- I
  Ian MillerAug 12, 2025
  If your McQuay Air Conditioner unit isn't operating, there are several things you can check: * First, ensure there isn't a power failure or a blown fuse by checking the power supply. * Make sure the power plug is securely connected. * Verify that the delay timer is set correctly. If the issue continues after checking these items, it is best to contact the air conditioner unit installer.
K
Kathleen MorganAug 16, 2025
How to increase air flow in McQuay Air Conditioner?
- R
  Ricky NormanAug 16, 2025
  If the air flow from your McQuay Air Conditioner is too low, consider the following: 1. Clean the air filter to remove any accumulated dust or debris. 2. Ensure that all doors and windows are closed to maintain optimal cooling efficiency. 3. Check for and clear any obstructions blocking the air suction and discharge points. 4. Increase the regulated temperature, as a lower temperature setting can sometimes reduce airflow.
K
Kathryn LloydAug 20, 2025
Why is there condensation on my McQuay MLC050CR?
- S
  shelby01Aug 20, 2025
  Condensation on the front air grille of your McQuay indoor unit is typically due to air humidity or a too-low temperature setting after prolonged use. To address this, increase the temperature setting and operate the unit at a high fan speed.
M
Michael GravesAug 23, 2025
How to eliminate bad odor from McQuay MLC050CR?
- N
  Nicole WelchAug 25, 2025
  If your McQuay Air Conditioner discharge air flow has a bad odor, it's likely due to particles like cigarette smoke or perfume that have adhered to the coil. Cleaning the coil should remove these odors.
A
Alexander KnightAug 27, 2025
How to increase air flow in my McQuay MLC050CR Air Conditioner?
- H
  howeadrienneAug 27, 2025
  If the airflow from your McQuay Air Conditioner is too low, try the following: 1. Clean the air filter. 2. Close any open doors and windows. 3. Clear any blockages from the air suction and discharge areas. 4. Increase the temperature setting.
K
kwilliamsAug 31, 2025
Why is my McQuay MLC050CR Air Conditioner hissing?
- T
  Thomas MorrisAug 31, 2025
  The hissing sound you hear from your McQuay air conditioner during operation is caused by refrigerant fluid flowing into the evaporator coil.
P
peterhortonSep 4, 2025
Why McQuay Air Conditioner compressor does not operate after starting?
- N
  nathan33Sep 4, 2025
  The compressor on your McQuay air conditioner may take 3 to 4 minutes to start operating after the unit is turned on. Please wait for this period.
R
rodriguezdavidSep 7, 2025
How to fix bad odor from McQuay MLC050CR?
- L
  Lisa CookSep 7, 2025
  If your McQuay Air Conditioner discharge air flow has a bad odor, the coil may have absorbed odors from sources like cigarettes, smoke, or perfume. Cleaning the coil should resolve this issue.

McQuay MLC050CR Specifications

General

Model Number	MLC050CR
Category	Air Conditioner
Cooling Capacity	5.0 kW
Refrigerant Type	R410A
Power Supply	220-240V, 50Hz
Air Flow Rate	850 m³/h

Summary

Safety Precautions

Installation Diagrams

Wireless Remote Control Diagram

Diagram showing the installation setup for indoor and outdoor units using a wireless remote.

Wired Remote Control Diagram

Diagram illustrating the installation setup for indoor and outdoor units connected via a wired remote.

Outline and Dimensions

Indoor Unit Dimensions and Specifications

Detailed dimensions and specifications for various indoor unit models.

Outdoor Unit Dimensions and Specifications

Detailed dimensions and specifications for SL20B/25B outdoor unit models.

Indoor Unit Installation Guide

Preliminary Site Survey for Indoor Unit

Requirements for conducting a site survey before installing the indoor unit, including electrical and location checks.

Indoor Unit Installation and Hanging

Unit Hanging Procedure

Step-by-step instructions for securely hanging the indoor unit using provided rods and ensuring proper alignment.

Drain Piping Work and Testing

Drain Piping Test Procedure

Instructions for testing the drain piping system to ensure proper drainage and check for leaks.

Indoor Unit Panel Installation

Air Intake Grille Installation

Guide for installing the air intake grille, including filter and optional ionizer filter placement.

Outdoor Unit Installation Guide

Preliminary Site Survey for Outdoor Unit

Criteria for selecting the optimal location for the outdoor unit, considering protection, ventilation, and noise.

Outdoor Unit Physical Installation

Instructions for firmly and horizontally mounting the outdoor unit, including required clearance.

Refrigerant Piping Work

Piping Length and Elevation Guidelines

Recommendations for maximum refrigerant piping length, elevation, and number of bends to ensure system efficiency.

Refrigerant Piping Connection

Refrigerant Additional Charge Calculation

Guidance on calculating and adding refrigerant based on piping length for cooling and heat pump systems.

Electrical Wiring Connections

Cooling Only Wiring Configurations

Details on electrical wiring for cooling-only models, including cable sizes, conductors, and connection diagrams.

Heat Pump Electrical Wiring

CK20 ARCK25 AR Heat Pump Wiring

Specific wiring instructions for CK20AR/CK25AR heat pump models, including cable types and diagrams.

CK30 ARCK40 ARCK50 AR Heat Pump Wiring

Specific wiring instructions for CK30AR/CK40AR/CK50AR heat pump models, including cable types and diagrams.

Vacuuming and Refrigerant Charging

System Vacuuming Procedure

Steps for vacuuming the air conditioner system to remove moisture and air, ensuring system integrity.

Refrigerant Charging Procedure

Guide for charging the system with refrigerant, including checks for correct charge and pressures.

Accessory Parts Information

Short Duct Specification and Application

Information on the specifications and appropriate use of short ducts for air discharge and intake.

Air Discharge and Intake Direction

Illustrations showing the possible directions for air discharge and air intake from the indoor unit.

Duct Connection Opening Dimensions

Sealing Material Application

Indicator Lights and Fault Table

Operating State and Fault Indications

Details on indicator lights, operating states, and fault indications for remote control operation.

Overall Checking and Test Run

Test Run Procedure and Checks

Steps for conducting a test run, including checks for abnormal sounds, vibrations, and drainage.

Standard Operation Conditions

Defines the acceptable indoor and outdoor temperature ranges for both cooling and heating operations.

Auto Random Re-start Function

Service and Maintenance Procedures

Indoor Unit Maintenance Procedures

Guidelines for cleaning and maintaining the indoor air filter and the indoor unit itself.

Troubleshooting Common Faults

Related product manuals

Table of Contents

Questions and Answers:

McQuay MLC050CR Specifications

Summary

Safety Precautions

Installation Diagrams

Wireless Remote Control Diagram

Wired Remote Control Diagram

Outline and Dimensions

Indoor Unit Dimensions and Specifications

Outdoor Unit Dimensions and Specifications

Indoor Unit Installation Guide

Preliminary Site Survey for Indoor Unit

Indoor Unit Installation and Hanging

Unit Hanging Procedure

Drain Piping Work and Testing

Drain Piping Test Procedure

Indoor Unit Panel Installation

Air Intake Grille Installation

Outdoor Unit Installation Guide

Preliminary Site Survey for Outdoor Unit

Outdoor Unit Physical Installation

Refrigerant Piping Work

Piping Length and Elevation Guidelines

Refrigerant Piping Connection

Refrigerant Additional Charge Calculation

Electrical Wiring Connections

Cooling Only Wiring Configurations

Heat Pump Electrical Wiring

CK20 ARCK25 AR Heat Pump Wiring

CK30 ARCK40 ARCK50 AR Heat Pump Wiring

Vacuuming and Refrigerant Charging

System Vacuuming Procedure

Refrigerant Charging Procedure

Accessory Parts Information

Short Duct Specification and Application

Air Discharge and Intake Direction

Duct Connection Opening Dimensions

Sealing Material Application

Indicator Lights and Fault Table

Operating State and Fault Indications

Overall Checking and Test Run

Test Run Procedure and Checks

Standard Operation Conditions

Auto Random Re-start Function

Service and Maintenance Procedures

Indoor Unit Maintenance Procedures

Troubleshooting Common Faults

Related product manuals