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McQuay MCK050A

McQuay MCK050A
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CEILING CASSETTE
SPLIT TYPE
AIR CONDITIONER
INSTALLATION MANUAL
COVER-CK-20A 2/1/01, 10:34 AM3

Questions and Answers:

McQuay MCK050A Specifications

General IconGeneral
ModelMCK050A
CategoryAir Conditioner
Cooling Capacity5.0 kW
RefrigerantR410A
Noise Level (Indoor Unit)42 dB(A)
Power Supply220-240V, 50Hz
Air Flow Rate850 m3/h
Operating Temperature Range (Cooling)18-43 °C

Summary

INSTALLATION DIAGRAM

Wireless Remote Control Installation Diagram

Diagram illustrating the installation of the indoor and outdoor units with a wireless remote control.

Wired Remote Control Installation Diagram

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

OUTLINE AND DIMENSIONS

Indoor Unit Outline and Dimensions

Provides dimensions and outline details for various indoor unit models.

Outdoor Unit Outline and Dimensions

Specifies the dimensions and outline for SL20B/25B outdoor unit models.

INSTALLATION OF THE INDOOR UNIT

Preliminary Site Survey for Indoor Unit Installation

Guidance on selecting a suitable location and conducting a preliminary site survey for the indoor unit.

Unit Installation and Hanging

Instructions on how to properly hang and mount the indoor unit using hanging rods.

Drain Piping Work and Testing

Details on how to connect and test the drain piping for the indoor unit.

Indoor Unit Panel and Grille Installation

Steps for installing the front panel, air intake grille, and filter on the indoor unit.

INSTALLATION OF OUTDOOR UNIT

Preliminary Site Survey for Outdoor Unit

Guidelines for selecting an appropriate location for the outdoor unit.

Outdoor Unit Installation Procedures

Instructions for securely and horizontally installing the outdoor unit.

REFRIGERANT PIPING WORK

Refrigerant Piping Length and Elevation Guidelines

Recommendations for piping length and elevation to ensure optimal performance and reliability.

Piping Connection Procedures

Detailed instructions for connecting refrigerant piping, including brazing and flare nut tightening.

ADDITIONAL REFRIGERANT CHARGE

Refrigerant Additional Charge (Cooling Only)

Table detailing additional refrigerant charge for cooling-only models based on pipe length.

Refrigerant Additional Charge (Heat Pump)

Table specifying additional refrigerant charge for heat pump models based on pipe length.

ELECTRICAL WIRING CONNECTION

Cooling Only Wiring Specifications

Wiring specifications for cooling-only models, including cable sizes and conductors.

Heat Pump Wiring Specifications

Wiring specifications for heat pump models, including cable sizes and conductors.

Wiring Diagrams and Configurations

CK20 A25 A30 A SL20 B30 B Wiring Diagram

Wiring diagram for CK20A/25A/30A indoor units with SL20B/30B outdoor units.

CK30 A40 A50 A SL30 C40 C50 C Wiring Diagram

Wiring diagram for CK30A/40A/50A indoor units with SL30C/40C/50C outdoor units.

CK20 AR25 AR SL20 BRK25 BRK Wiring Diagram

Wiring diagram for CK20AR/25AR indoor units with SL20BRK/25BRK outdoor units.

CK30 AR40 AR50 AR SL30 CR40 CR50 CR Wiring Diagram

Wiring diagram for CK30AR/40AR/50AR indoor units with SL30CR/40CR/50CR outdoor units.

VACUUMING AND CHARGING

Vacuuming Procedure

Steps to eliminate moisture and air from the system using a vacuum pump.

Charging Procedure

Instructions for charging the system with refrigerant after vacuuming.

ACCESSORY PART

Short Duct Specification

Details on connecting short ducts for air discharge and potential airflow distribution improvements.

INDICATOR LIGHTS

Remote Control Signal Confirmation

Indicates how the indoor unit confirms receiving a remote control signal.

Wireless Remote Control Operating State and Fault Table

Table showing indicator lights for operating states and fault conditions with wireless remote control.

Wired Remote Control Operating State and Fault Table

Table showing indicator lights for operating states and fault conditions with wired remote control.

OVERALL CHECKING

Pre-Test Checks

Ensures the unit is mounted, wired, and piped correctly before test run.

Test Run and Item Checks

Conducting a test run and verifying items like sound, vibration, and drainage.

Post-Operation Confirmation

Confirming condenser fan, evaporator blower operation, and delay timer function.

STANDARD OPERATION CONDITIONS

Cooling Operation Conditions

Specifies the minimum and maximum indoor/outdoor temperature ranges for cooling operation.

Heating Operation Conditions

Specifies the minimum and maximum indoor/outdoor temperature ranges for heating operation.

AUTO RANDOM RE-START FUNCTION

SERVICE AND MAINTENANCE

Indoor Air Filter Maintenance

Procedures and period for cleaning the indoor air filter.

Indoor Unit Cleaning

Procedures and period for cleaning the indoor unit grille and panel.

TROUBLE SHOOTING

Compressor Start-up Issues

Troubleshooting for compressor not starting after 3 minutes.

Unit Not Operating

Troubleshooting for general unit operation failure.

Low Air Flow

Troubleshooting common causes for low air flow.

Bad Odor Discharge

Causes and solutions for discharge air having a bad odor.

Condensation on Front Grille

Troubleshooting condensation on the indoor unit's front grille.

Water Leakage

Troubleshooting water flowing out from the air conditioner unit.

Hissing Air Flow Sound

Troubleshooting hissing sound from the air conditioner unit during operation.

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