Refnet Pipe System; Layout Example; Installation Of Outdoor Units - Daikin R-410A Installation Manual

REFNET Pipe System

3. REFNET Pipe System
3.1

Layout Example

3.1.1 Heat Pump System
Use of the particular branch fitting appropriate to each individual unit type not only permits the pipes to be laid
with ease but also increases the reliability of the system as a whole.
Type of
fitting
Units can be added by connecting them directly to the REFNET header or REFNET joint.
cannot be included in the system downsteam of a REFNET header.
Notes
1. When the capacity ratio of the indoor system to the outdoor unit is more than 100% and when all the indoor units are
in operation at the same time, then the rated capacity of each unit is somewhat reduced.
2. Special purpose REFNET pipe components must be used for all the pipe work. For further details concerning types
of components see Section 6.3 Example of Connection.
4
Sample systems
EDUS39-605
Further REFNET joints

Installation of Outdoor Units