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REFNET Pipe System
EDUS39-605
4 Installation of Outdoor Units
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.
Units can be added by connecting them directly to the REFNET header or REFNET joint.
Further REFNET joints
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
.
Type of
fitting
Sample systems
Line b
ranch fitting
(Pipes containing
REFNET
joints only)
He
ader branch fitting
(Piping
consists of REF
N
ET hea
ders only)
Mixe
d branch fittin
g
s
(Piping includin
g
both heade
rs
and joints)
Содержание REYQ72/96MTJU
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