General Information; Functional Description - LG Multi F A2UW14GFA0 Engineering Product Data Book

3. Installation of outdoor unit
3.9.2 Branch distributor(Accessory)

1) General information

Model name:
BD unit
PMBD3620
PMBD3630
PMBD3640
2) Installation of BD unit
① Branch distributor unit
We recommend BD unit installation at indoor side. but, if you install it outdoor side, care should be taken against water and
other factors which may damage the pcb.
- Unit for variable refrigerant volume system
② Connection of piping (flare work)
• No brazing & easy installation
NOTE
• Be sure to mark all the local refrigerant piping(liquid pipes, gas pipes, etc.) for each indoor unit designating
clearly to which room it belongs to. (A, B, C, D)
③ Installation of BD unit
• This unit may be installed suspended from the ceiling or mounted on the wall.
• This unit may only be installed horizontally , as shown in the diagram below. (Side B is facing up) However, it may be
freely installed in any direction, forward or backward, and to the sides.
• Be sure to secure a 600mm square opening for service and inspection as shown in the diagram below, for both ceiling -
suspended installation and wall-mounted installation.
• BD unit does not require drain treatment as it uses internal insulation.
• Service direction is the side B and C
• The piping for the indoor unit may be led around in direction A
• The inclination of side B must be within ±5 degree forward or backward or to the sides.
59 _
Heat pump 50Hz/R410A
Product
Multi FDX
Available condition
Temp : Max. 54
PCB
Humidity : Max.80%

Functional description:

• Distribution of refrigerant to various indoor uits.
• 3 types available (2, 3, 4 indoor units)
• Consists of EEV's inside
• Controlling PCB inside the unit
• Internally insulated
• Flare joints for easy installation and labour cost saving
• Compact design