System Layout - Friedrich D4PBB Installation Manual

Parts
PRECAUTIONS FOR SELECTING THE LOCATION
The BD unit is for indoor use. Install in a location such as above a ceiling or behind a wall in
accordance with the following conditions:
• That the unit is fully supported, and is in a location with little or no vibration.
• That the refrigerant pipes for the indoor and outdoor units can be repaired with ease, and that
the units are placed well within the distance from each other allowed by the pipe length.
• That there is nothing nearby that produces heat or steam(gas).
• When installing, that there is enough carity for servicing the unit.
• Do not install in location that is hot or humid for long periods of time.
• A well-ventilated area.
• Do not install near bedrooms. The sound of refrigerant flowing through the piping may
sometimes be audible. For restrictions on installation, refer to "INSTALLATION".

System Layout

For installation of the indoor units. Follow the instructions in the installation manual for each unit.
Distributor Unit
Refrigerant
Rooms
4
Do not connect more than 8 indoor units together choose the distributor unit type
(2rooms,3rooms or 4rooms) according to the installation pattern
6 Branch Distributor
Branch Pipe
Distributor
A
Distributor
h1
Main Pipe
B
R410A
D4PBB
h2