Design of 3WAY VRF SYSTEM
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7. Optional Parts
The distribution joint can be either horizontal or vertical.
In the case of horizontal, the L-shaped tubing must be slanted slightly upward (15° to 90° ).
In case of vertical position
(directed upward or downward)
Outdoor unit
Side
In case of horizontal position
Indoor unit
Side
15 to 30°
upward slant
Outdoor
unit
Outdoor
unit
Direction of
Distribution Joint
Direction of Distribution Joint
Indoor unit
When brazing, replace air inside the tube with nitrogen gas to prevent copper oxide from forming.
To insulate the distribution joint, use the supplied tubing insulation.
(If using insulation other than that supplied, make sure that its heat resistance is 248 ° F or higher.)
For additional details, refer to the installation instructions provided with the outdoor unit.
TD831158-00̲3WAY̲VRF̲SYS.indb 48
TD831158-00̲3WAY̲VRF̲SYS.indb 48
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2012/01/23 17:30:20
Summary of Contents for U-72MF1U9
Page 118: ...Section 8 TENTATIVE ...