Refnet Pipe System; Layout Example - Daikin VRV II REYQ8MY1B Service Manual

REFNET Pipe System

6. REFNET Pipe System

6.1

Layout Example

Heat Recovery 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.
Further branches cannot be included in the system below the REFNET header branch.
Notes
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 will be
somewhat reduced.
Special purpose REFNET pipe components must be used for all the pipe work. For further
details concerning choice of components, types of components, etc.
270
Sample systems
Si39-306
Appendix