Page 1
Installation Manual Wall Ceiling air handler Model BM18MFCC IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.
Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or equipment failure. Name Name Shape Quantity Remote Control Remote controller (some models)
Safety Precautions Read Safety Precautions Before Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. WARNING CAUTION. The seriousness of potential damage or injuries is classified as either a Failure to observe a warning may result in death. The appliance must be installed in accordance with national regulations.
Installation Summary - Indoor Unit INSTALLATION ORDER Install the indoor unit Install the outdoor unit Install the drainpipe (Page 7) (Separate Manual) (Page 11) Connect the wires Connect the refrigerant (Page 16) pipes (Page 13) Revised 5/14/2020 Page 5 ...
Areas with oil drilling or fracking Step 1: Select installation location Coastal areas with high salt content in the The BM18MFCC can be installed vertically on a low wall or horizontally on the ceiling. Your Areas with caustic gases in the air, such as...
Step 2: Install the main body Hook Refrigerant suction line connection Drain point Refrigerant liquid line connection 1. Ceiling Mount Installation This unit surface-mounts on ceilings or low walls. For a ceiling installation, locate your ceiling type from the diagrams below and perform the indicated actions. The unit should be hung from threaded rod in all ceiling installations.
Ceiling Installation cont'd • Remove the side covers and the grille. Hanging Brackets Threaded rod Side cover Back of unit shown Grille • Bolt the threaded rod to the hanging bracket as shown below. Gas refrigerant line connection Liquid refrigerant line Screw nut connection Washer...
Drainpipe Installation The drainpipe is used to drain water away from the unit. Improper installation may cause unit and property damage. CAUTION • Insulate all piping to prevent condensation, which could lead to water damage. • If the drainpipe is bent or installed incorrectly, water may leak and cause a Lean over 1/100 water-level switch malfunction.
Page 10
3. Using a 2.5” hole saw drill, drill a hole in the NOTE: When drilling the hole, make sure to wall. Make sure that the hole is drilled at a avoid wires, plumbing, and other sensitive slight downward angle, so that the outdoor components.
Refrigerant Piping Connection Note on Pipe Length The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal efficiency is tested on units with a pipe length of 16.5ft. In North America, standard pipe length is 25’. A minimum pipe run of 10 feet is required to minimize vibration &...
Page 12
2. Using a pipe cutter, cut the pipe a little longer Flare nut than the measured distance. 3. Make sure that the pipe is cut at a perfect 90° angle. Refer to Fig. 6.1 for bad cut examples. Copper pipe 90°...
Page 13
Note: Use of an approved refrigerant sealant is 6. Place flaring tool onto the form. recommended for all flare joint connections. 7. Turn the handle of the flaring tool clockwise until the pipe is fully flared. Instructions for Connecting Piping to 8.
Wiring BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE REGULATIONS 1. All wiring must comply with local and national electrical codes, regulations and must be installed by a licensed electrician. 2. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units.
Page 15
Indoor Unit Wiring 1. Prepare the cable for connection. 3. Connect the u-lugs to the terminals. Match the wire colors/labels with the labels a. Using wire strippers, strip the rubber jacket on the terminal block. Firmly screw the u-lug from both ends of the signal cable to reveal of each wire to its corresponding terminal.
Page 16
Install Outdoor Unit (see separate manual) When you have finished installing all indoor air handlers, proceed to installation of the outdoor unit. Complete installation instructions and startup procedures are given in the outdoor unit installation manual. Copies are always available at AlpineHomeAir.com by searching your unit's model number and scrolling to Documents.
Need help?
Do you have a question about the BM18MFCC and is the answer not in the manual?
Questions and answers