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Blueridge BM12MCD - User Manual

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Concealed Ducted
Inside Air Handler
Installation Manual
Models:
BM12MCD
BM18MCD
IMPORTANT NOTE:
Read this manual carefully before
installing or operating your new air
conditioning unit. Make sure to save this
manual for future reference.
This manual only describes the outdoor
unit of user’s. When using the indoor unit,
refer to the user’s manual of indoor unit.

Table of Contents

Questions and Answers

  • H
    hannah65Aug 18, 2025
    How to fix poor cooling performance in Blueridge Air Handlers?
    • S
      Samantha HamiltonAug 18, 2025
      If your Blueridge Air Handler isn't cooling well, several factors could be the cause. First, ensure that your temperature setting is lower than the ambient room temperature. Next, inspect and clean the heat exchanger on both the indoor and outdoor units if they're dirty. Also, clean the air filter according to the provided instructions. Check for any blockages at the air inlet or outlet of either unit, and remove any obstructions. Ensure all doors and windows are closed to prevent warm air from entering, and reduce heat generated by sunlight by closing windows and curtains. Minimize the number of heat sources in the room, such as computers or electronics. Finally, check for refrigerant leaks and replenish if necessary.
  • C
    Carmen MilesAug 20, 2025
    What to do if my Blueridge BM12MCD Air Handlers unit is not working?
    • J
      Julia BowenAug 20, 2025
      If your Blueridge Air Handlers unit isn't working, start by checking for a power failure and wait for the power to be restored. Ensure the power is turned on. Replace the fuse if it's burned out. If you're using the remote control, replace the batteries. If the unit has a 3-minute protection feature, wait three minutes after restarting it. Lastly, check if the timer is activated and turn it off.
  • F
    fhoweAug 23, 2025
    Why my Blueridge BM12MCD Air Handlers unit does not turn on?
    • D
      Douglas CannonAug 23, 2025
      Your Blueridge Air Handlers unit might not turn on due to a few reasons. The unit has a 3-minute protection feature to prevent overloading, so wait three minutes after restarting the unit. If you have a Cooling and Heating Model, and the Operation light and PRE-DEF indicators are lit, the outdoor temperature might be too cold, activating the unit’s defrost cycle.
  • L
    Lauren GutierrezAug 26, 2025
    How to improve heating performance on Blueridge Air Handlers?
    • M
      Megan WelchAug 26, 2025
      To improve the heating performance of your Blueridge Air Handlers unit, consider these points. If the outdoor temperature is extremely low, use an auxiliary heating device. Ensure all doors and windows are closed to prevent cold air from entering. Also, check for refrigerant leaks, reseal if necessary, and top off the refrigerant.
  • J
    Joseph MccormickAug 28, 2025
    What to do if indicator lamps continue flashing on Blueridge BM12MCD Air Handlers?
    • S
      Scott DayAug 28, 2025
      If the indicator lamps on your Blueridge Air Handlers unit continue to flash, the unit may stop operation or continue to run safely. Wait for about 10 minutes, as the problem may resolve itself. If not, disconnect the power, then connect it again, and turn the unit on.
  • C
    Cynthia WadeAug 30, 2025
    Why does my Blueridge Air Handlers unit change from COOL/HEAT mode to FAN mode?
    • S
      Scott HillAug 31, 2025
      Your Blueridge Air Handlers unit may switch to FAN mode to prevent frost from forming. Alternatively, the set temperature may have been reached, causing the compressor to turn off. The unit will resume normal operation when the temperature fluctuates again.
  • B
    bestjustinSep 2, 2025
    Why does my Blueridge BM12MCD Air Handlers unit emit a bad odor?
    • A
      Anthony AndersonSep 2, 2025
      Your Blueridge Air Handlers unit may emit a bad odor because it has absorbed odors from the environment, such as furniture, cooking, or cigarettes. Alternatively, the unit’s filters may have become moldy.
  • S
    Susan ColemanSep 4, 2025
    Why is my Blueridge BM12MCD indoor unit making noises?
    • R
      Rebecca Davis PhDSep 5, 2025
      Your Blueridge Air Handlers indoor unit might be making noises for several reasons. A rushing air sound may occur when the louver resets its position. A squeaking sound might be heard when the system is OFF or in COOL mode, or when the drain pump (optional) is in operation. Also, a squeaking sound may occur after running the unit in HEAT mode due to expansion and contraction of the unit’s plastic parts.
  • K
    Kerri MartinezSep 7, 2025
    Why are my Blueridge Air Handlers indoor and outdoor units making noises?
    • J
      Jay TrevinoSep 7, 2025
      The indoor and outdoor units of your Blueridge Air Handlers may produce a low hissing sound during operation, which is normal due to refrigerant gas flowing through them. A similar sound may occur when the system starts, stops, or is defrosting, caused by the refrigerant gas stopping or changing direction. Squeaking sounds can also occur due to the normal expansion and contraction of plastic and metal parts caused by temperature changes during operation.
  • J
    Julia AllenSep 9, 2025
    Why does my Blueridge BM12MCD Air Handlers indoor unit emit white mist?
    • J
      James JohnsonSep 9, 2025
      In humid regions, a large temperature difference between the room’s air and the conditioned air can cause your Blueridge Air Handlers indoor unit to emit white mist.

Summary

Safety Precautions

General Safety Warnings

Explains warning symbols and initial safety statements for proper use.

Installation Safety Guidelines

Covers critical safety points for installation personnel, including electrical and structural.

Unit Specifications and Features

Indoor Unit Display Panel Overview

Describes the display panel, buttons, and indicators on the indoor unit.

Operating Temperature Range

Details the recommended operating temperature ranges for COOL, HEAT, and DRY modes.

Key Unit Features

Outlines features like default settings, auto-restart, and leak detection systems.

Care and Maintenance

Cleaning the Indoor Unit

Instructions and cautions for cleaning the interior of the air handler unit.

Air Filter Cleaning Procedures

Steps for cleaning the air filter, including warnings about self-service.

Filter Drying and Maintenance Precautions

Guidance on drying filters and general cautions for unit maintenance.

Long-Term and Seasonal Maintenance

Procedures for unit maintenance during periods of non-use and before seasonal operation.

Troubleshooting

Common Operational Issues and Causes

Addresses common problems like unit not turning on, mode changes, and noises.

Performance and Operational Problems

Solutions for issues such as outdoor unit noises, dust emission, and poor cooling.

Unit Not Working and Error Code Diagnosis

Troubleshooting steps for unit failure, error codes, and indicator lamp issues.

Accessories

Included and Optional Accessories List

Details all accessories provided with the unit and optional items.

Installation Summary

Step-by-Step Installation Overview

Visual summary of the key stages for installing the air conditioning system.

Unit Parts

Identification of Indoor and Outdoor Components

Diagrams and labels identifying the main parts of the indoor and outdoor units.

Indoor Unit Installation

Selecting the Installation Location

Criteria for choosing a suitable installation site, including standards and restrictions.

Indoor Unit Hanging Dimensions and Mounting

Provides dimensions for air outlet/inlet and mounting points for hanging the indoor unit.

Hanging Support Structure Options

Describes different types of structural supports for hanging the indoor unit.

Ducting and Air Return Configuration

Instructions for connecting ducts and converting the air return path.

Motor, Drain Pump, and Wall Hole Preparation

Steps for motor/pump maintenance and drilling the wall hole for piping.

Drain Hose Connection and Piping Best Practices

Guidance on connecting the drain hose, insulation, and proper piping techniques.

Refrigerant Piping Connection

Pipe Length and Drop Height Specifications

Information on maximum pipe lengths, drop heights, and additional refrigerant.

Oil Trap Installation for Vertical Risers

Recommendations for installing oil traps to ensure proper oil return in vertical piping.

Cutting Refrigerant Pipes Accurately

Instructions for properly cutting refrigerant pipes to ensure efficient operation.

Removing Burrs and Flaring Pipe Ends

Procedures for removing burrs and creating proper flares for airtight seals.

Connecting and Tightening Refrigerant Pipes

Steps for connecting pipes and applying correct torque for secure joints.

Wiring

Electrical Work Regulations and Safety Precautions

Critical regulations, safety warnings, and preparation for electrical wiring.

Indoor Unit Wiring Procedure and Diagram

Detailed steps and diagrams for wiring the indoor unit's control box.

Blueridge BM12MCD Specifications

General IconGeneral
BrandBlueridge
ModelBM12MCD
TypeAir Handler
Air Handler TypeMulti-Position
Airflow400 CFM
Voltage208/230V
RefrigerantR-410A
Phase1
Cooling Capacity12000 BTU
CFM400 CFM

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