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McLean Cooling Technology GenesisM52-1226-034 - User Manual

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© 2012 Pentair Technical Products
87976469
Rev. V
P/N 10-1008-170
Protecting Electronics.
Exceeding Expectations.™
Pentair Technical Products
2100 Homan Way
Minneapolis MN 55303 USA
+1.763.323.8200
+1.763.576.3200
PentairTechnicalProducts.com
INSTRUCTION MANUAL
Genesis™
Air Conditioner
All Models

Table of Contents

Questions and Answers

  • J
    Jacqueline HoltAug 13, 2025
    Why is there no temperature difference in my McLean Cooling Technology GenesisM52-1226-034?
    • B
      Brittany StokesAug 14, 2025
      If the temperature difference between the air entering and exiting the evaporator in your McLean Cooling Technology Air Conditioner is not present, it could be due to a possible loss of refrigerant, in that case you should repair or replace the defective part. It can also be caused by bad valves in the compressor.
  • W
    wendy45Aug 17, 2025
    Why my McLean Cooling Technology GenesisM52-1226-034 Air Conditioner unit won’t cool?
    • P
      Patrick DixonAug 17, 2025
      If your McLean Cooling Technology Air Conditioner unit won’t cool, several factors could be at play: the impellers/blowers might not be running, the compressor could be inactive, the compressor might have bad valves even when running, or there could be a loss of refrigerant.
  • M
    micheleriveraAug 21, 2025
    What to do if the condenser blower and compressor of my McLean Cooling Technology Air Conditioner don't turn on?
    • C
      Cameron CurryAug 21, 2025
      If the condenser blower and compressor of your McLean Cooling Technology Air Conditioner are not turning on when the thermostat is set to the lowest setting, it could be due to a defective thermostat. In this case, consider replacing the part.
  • M
    Madison MartinezAug 25, 2025
    Why does my McLean Cooling Technology GenesisM52-1226-034 Air Conditioner compressor try to start but won’t run?
    • A
      Ashley CastilloAug 26, 2025
      If your McLean Cooling Technology Air Conditioner compressor tries to start but won’t run, the issue could stem from several causes: low line voltage at start (should be +/-10% rated voltage), a stuck compressor motor, a bad contactor, a faulty overload switch, or a bad run/start capacitor.
  • T
    townsendrachelAug 28, 2025
    How to fix water in my McLean Cooling Technology GenesisM52-1226-034 enclosure?
    • A
      Anthony RodriguezAug 28, 2025
      If you're getting water in the enclosure of your McLean Cooling Technology Air Conditioner, it might be due to a plugged drain, a kinked drain tube, or the enclosure not being properly sealed, which allows humidity to enter.
  • B
    Billy WalshSep 1, 2025
    How to troubleshoot no airflow from evaporator blower in McLean Cooling Technology GenesisM52-1226-034?
    • W
      Wesley MooreSep 1, 2025
      If there is no airflow from the evaporator blower in your McLean Cooling Technology Air Conditioner, it could be due to an open motor winding, consider repair or replacement. Another reason might be a stuck blower motor which means a defective part, or obstructed blades.
  • H
    Henry AustinSep 5, 2025
    Why is there no airflow from the condenser blower in my McLean Cooling Technology GenesisM52-1226-034 Air Conditioner?
    • A
      Anna PotterSep 5, 2025
      If there is no airflow from the condenser blower of your McLean Cooling Technology Air Conditioner, this could be due to a defective thermostat, an open motor winding (repair or replace), a stuck blower motor (defective part), or obstructed wheels/blades.
  • A
    adamsjohnSep 8, 2025
    Why does my McLean Cooling Technology GenesisM52-1226-034 Air Conditioner unit blows breakers?
    • D
      Danielle SandersSep 8, 2025
      If your McLean Cooling Technology Air Conditioner unit blows breakers, it could be due to an undersized breaker/fuse or one that is not time delayed. It also may be caused by a short in the system.

Summary

Receiving the Air Conditioner

Handling and Testing the Air Conditioner

Installation Instructions

M13 Series Air Conditioner Information

M13 Design Data

Technical specifications and ratings for M13 series air conditioners.

M13 Dimensional Drawing

Physical dimensions and layout of the M13 air conditioner model.

M13 Mounting Gasket and Cutout Dimensions

Dimensions for mounting gasket and cutout openings for M13 models.

M13 Components List

M13 Schematic and Wire Diagram

M17 Design Data

M17 Dimensional Drawing

M17 Mounting Gasket and Cutout Dimensions

M17 Components List

M17 Schematic and Wire Diagrams

M28 Design Data

M28 Dimensional Drawing

M28 Mounting Gasket and Cutout Dimensions

M28 Components List

M28 Schematic and Wire Diagram (115 V 2200 BTU & 230 V 6000 BTU)

M28 Schematic and Wire Diagram (115;230 V 4000 BTU & 230 V 6000 BTU)

M33 Design Data

M33 Dimensional Drawing

M33 Mounting Gasket and Cutout Dimensions

M33 Components List

M33 Schematic and Wire Diagram

M36 Design Data

M36 Dimensional Drawing

M36 Mounting Gasket and Cutout Dimensions

M36 Components List

M36 Schematic and Wire Diagram

M52 Design Data

M52 Dimensional Drawing

M52 Mounting Gasket and Cutout Dimensions

M52 Components List

M52 Schematic and Wire Diagrams

MHB11 Design Data

MHB11 Dimensional Drawing

MHB11 Mounting Gasket and Cutout Dimensions

MHB11 Components List

MHB11 Schematic and Wire Diagrams

Temperature Control

Principles of Operation

Maintenance

Compressor Maintenance

Information on compressor maintenance and warranty considerations.

Inlet Air Filter Maintenance

Procedure for cleaning and replacing the air conditioner's inlet filter.

Filter Cleaning and Replacement

Detailed steps for cleaning and replacing the air conditioner's inlet filter.

Air Mover Motor Information

Information on the maintenance of blower and impeller motors.

Refrigerant Loss and Recharging

Guidance on handling refrigerant leaks and system recharging.

Trouble Shooting

Basic Troubleshooting Checklist

Step-by-step checklist for troubleshooting common air conditioner problems.

Symptoms and Possible Causes

Table listing common symptoms and their potential causes.

Warranty

Return and Repair Policy

Limitation of Liability

McLean Cooling Technology GenesisM52-1226-034 Specifications

General IconGeneral
BrandMcLean Cooling Technology
ModelGenesisM52-1226-034
CategoryAir Conditioner
LanguageEnglish

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