Carrier 45MHHAC Owner's Manual
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Carrier 45MHHAC Owner's Manual

High wall cooling only
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45MHHAC
High Wall Cooling Only
Sizes 09K-24K
Fig. 1 - Sizes 09K -24K
Please read this Owner's Information Manual carefully before installing and using this appliance and keep this manual for future
reference.
For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along
with the installation data and dealer contact information, will be helpful should your system require maintenance or service.
UNIT INFORMATION
Model # _______________________________
Serial # ________________________________
INSTALLATION INFORMATION
Date Installed ___________________________
Owner's Manual
A NOTE ABOUT SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BEFORE INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
WIRELESS REMOTE CONTROLLER . . . . . . . . . . . . . . . . . . . . . . 8
GETTING TO KNOW YOUR AC . . . . . . . . . . . . . . . . . . . . . . . . . 13
ADDITIONAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ERROR CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
NOTE TO EQUIPMENT OWNER:
DEALERSHIP CONTACT INFORMATION
Company Name: ______________________
Address:_____________________________
Phone Number:________________________
Technician Name:______________________
Specifications subject to change without notice.

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Summary of Contents for Carrier 45MHHAC

  • Page 1: Table Of Contents

    45MHHAC High Wall Cooling Only Sizes 09K-24K Owner’s Manual TABLE OF CONTENTS PAGE A NOTE ABOUT SAFETY....... . 2 GENERAL .

  • Page 2: A Note About Safety

    45MHHAC: Owner’s Manual A NOTE ABOUT SAFETY WARNING This is the safety-alert symbol Anytime you see this symbol in manuals, instructions, and on the unit, be aware of the potential for personal injury. There are three levels of This appliance is not intended for use by persons (including children)
  • Page 3 45MHHAC: Owner’s Manual 1. Installation (where refrigerant pipes are allowed) b. The test pressure after removal of pressure source shall be Any person who is involved with working on or breaking into a maintained for at least 1 h with no decrease of pressure...
  • Page 4 45MHHAC: Owner’s Manual 6. No ignition sources 13. Detection of flammable refrigerants No person carrying out work in relation to a REFRIGERATING Under no circumstances shall potential sources of ignition be used in SYSTEM which involves exposing any pipe work shall use any the searching for or detection of refrigerant leaks.
  • Page 5 45MHHAC: Owner’s Manual - Ensure that contamination of different refrigerants does not occur 17. Labeling when using charging equipment. Hoses or lines shall be as short as Equipment shall be labeled stating that it has been de-commissioned possible to minimize the amount of refrigerant contained in them.

  • Page 6: General

    45MHHAC: Owner’s Manual GENERAL BEFORE INSTALLATION The indoor unit provides quiet, maximum comfort. In addition to cooling Pairing and/or heating, the indoor unit matched with an outdoor condensing unit The machine you purchased may be one of the types in the table below.

  • Page 7: Fcc

    45MHHAC: Owner’s Manual This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 8: Wireless Remote Controller

    45MHHAC: Owner’s Manual WIRELESS REMOTE CONTROLLER Before you begin using your new air conditioner, familiarize yourself with the remote control. MODE ON/OFF Turns the unit on or off. Scrolls through operation modes AUTO COOL as follows: TEMP HEAT Increases temperature in NOTE: HEAT mode is not 1°C (1°F) increments.

  • Page 9: Wireless Remote Control Lcd Screen Indicators

    45MHHAC: Owner’s Manual WIRELESS REMOTE CONTROL LCD SCREEN INDICATORS Information is displayed when the remote controller is powered up. Active clean feature display Not applicable for this unit Not applicable for this unit Breeze Away display Sleep mode display Not applicable for this unit...

  • Page 10: Remote Controller

    45MHHAC: Owner’s Manual Remote Controller Basic Remote Control Operation Before operation, ensure the unit is plugged in and power is available. CAUTION COOL Mode EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in equipment damage. Handle the control with care and avoid getting the control wet.
  • Page 11 45MHHAC: Owner’s Manual AUTO Mode FAN Mode In AUTO mode, the unit automatically selects the COOL, or FAN, operation based on the set temperature. Boost Clean Swing Boost Clean Fig. 7 —FAN Mode 1. Press MODE to select the FAN mode.

  • Page 12: Remote Control Operation - Quick Start

    45MHHAC: Owner’s Manual Remote Control Operation - Quick Start NOTE: When transmitting a command from the remote control to the unit, be sure to point the control toward the right side of the unit. The unit confirms receipt of a command by sounding an audible beep.

  • Page 13: Getting To Know Your Ac

    45MHHAC: Owner’s Manual GETTING TO KNOW YOUR AC NOTE: Different models have different front panels and display windows. Not all the indicators described below are available for the air conditioner you purchased. Please check the indoor display window of the unit you purchased. Illustrations in this manual are for explanatory purposes.

  • Page 14: Additional Features

    45MHHAC: Owner’s Manual ADDITIONAL FEATURES Sleep Operation Use SLEEP to decrease energy use while you sleep. NOTE: Every time the air conditioner is powered on, the unit emits a buzzing sound to indicate that the product has been Press SLEEP on the remote control when in the COOL mode, the unit powered on normally.
  • Page 15 45MHHAC: Owner’s Manual SETTING ANGLE OF AIR FLOW To Manually Operate the Unit • Do not set louver at too vertical an angle for long periods of time. When using COOL or DRY mode, water could condense on the louver CAUTION blade and drop on your floor or furnishings.

  • Page 16: Care And Maintenance

    45MHHAC: Owner’s Manual CARE AND MAINTENANCE 3. If your filter has a small air freshening filter, unclip it from the larger filter. Clean this air freshening filter with a hand-held vacuum. WARNING (Front) (Back) The cooling efficiency of your unit and your health would be damaged for the clogged AC.
  • Page 17 45MHHAC: Owner’s Manual Maintenance - Long Periods of Non-Use If you plan not to use your air conditioner for an extended period of time, do the following: Clean all filters Turn on FAN function until unit dries out completely Turn off the unit and...

  • Page 18: Troubleshooting

    45MHHAC: Owner’s Manual TROUBLESHOOTING CAUTION If any of the following conditions occurs, turn off your unit immediately. • The field wiring cable is damaged or abnormally warm • You smell a burning odor • The unit emits loud or abnormal sounds •...
  • Page 19 45MHHAC: Owner’s Manual Table 3 — Other Issues When troubles occur, check the following points before contacting a repair company. Problem Possible Causes Solution Lower the temperature setting Temperature setting may be higher than ambient room temperature Use Clean function by remote control to clean the affected...

  • Page 20: Error Codes

    PC0L ---- IDUs mode conflict NOTE: The digital tube will show FC in forced cooling mode. FC is not an error code. © 2024 Carrier. All rights reserved. Edition Date: 12/24 Catalog No: 45MHHAC-01OM A Carrier Company Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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