Multi F Outdoor Unit Engineering Manual

MULTI F MAX BD UNIT
The Branch Distribution (BD) unit is a required accessory of Multi F MAX inverter-driven heat pump systems. Choose from two (2) port, three
(3) port, or four (4) port BD units.
Two (2) refrigerant pipes-one (1) liquid line and one (1) vapor line-run from the outdoor unit to the BD unit that is installed inside of a building.
Two (2), three (3), or four (4) sets of refrigerant lines will run from the BD unit to the indoor units, depending on type of BD unit selected. A
Multi F MAX system can include up to two BD units (installed with the use of the Y-branch accessory PMBL5620) that support a total of eight
(8) indoor units (up to four [4] indoor units per BD unit).
Figure 26: Example of Multi F MAX Heat Pump Inverter System with two BD Units
Features and Benets
Due to our policy of continuous product innovation, some specications may change without notication.
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170 | BD UNIT
Multi F and Multi F MAX Heat Pump System Engineering Manual
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