There are four branch distribution boxes available to help customize the installation of your LG Multi F Max Mini Split System. A branch distribution unit is used as an intermediate refrigerant control device between the outdoor unit and the indoor units. It is used to effectively and efficiently control the heating or cooling operation of the system through the use of electronic expansion valves. They are available with 2, 3 or 4 ports. The PMBD3640
A distribution box is required when connecting 2 or more indoor units to a single outdoor compressor. Depending on how many indoor units you will be installing, the correct size distribution unit needs to be installed. However, you do not need to use all the ports available at the time of your initial installation. If you think you will be adding additional indoor units in the future, you can "cap off" the unused ports on the branch distribution units until that later time. Each branch distribution unit is specific to the number of indoor units you will be using.
- 2 port unit - PMBD3620
- 3 port unit - PMBD3630
- 4 port unit - PMBD3640
- 4 port unit with one integral 36k unit adaptor - PMBD3641
Below is an installation example. With the Multi F Max 54,000 BTU unit, you can supply anywhere from 2 to 8 rooms with their own climate control. The photo below illustrates an example of a 6 zone installation. This installation requires one outdoor unit (LMU540HV), a Y connector/branch, and two branch distribution boxes
. (Each of the distribution boxes shown below are either 3 unit or 4 unit BDs.) The indoor units shown include 1 ceiling cassette, 2 standard high wall units, a mirrored art cool unit and 2 ducted concealed ceiling unit. This item is only the Branch Distribution Box.
Each indoor unit has its own control, so each room can be set to different temperatures. In this example installation, the individual units are connected to a single exterior unit by way of the 2 branch provider units and 1 "y" connector.
||Need help with your purchasing decision? We have an LG Certified Technical Service Advisor on staff to help you with any questions.
Because of the complexity of the components required for the Multi F Max Mini Split System,
please feel free to contact our Customer Service Department.
They will make certain you have everything you need for installation of your system.
For purchase and help in configuring your custom system,
please contact Customer Service at 1-877-847-0050.
The Multi F Max System must be installed by a qualified, licensed HVAC technician. Manufacturer covers parts only under warranty. Installer is responsible for labor warranty.