30
Connecting Mode Selection Boxes
•
The Maximum No. of indoor units per port is 5
•
For each mode selection box, dependant on mode selection box size, maximum possible number of
connected indoor units is 41.
• All indoor units on the same port must operate in the same mode.
• Do not install in noise sensitive areas.
•
The mode selection box must be installed level horizontal.
•
Main piping may be connected to either side of the mode selection box but cannot pass through to other
mode selection boxes.
•
Allow at least 3 ft. (1 m) of straight pipe between the mode selection box and the branch pipes.
• There will be a 30-second auto-check function performed after the indoor and outdoor units have been
started.
•
Mode selection boxes require a unique address.
•
See the instruction manual included with the mode selection box for detailed installation information.
V8MSBB02
V8MSBB04
V8MSBB06
V8MSBB08
V8MSBB10
V8MSBB12
Indoor Unit
Pipe
Connec-
tions
(in)
Liq-
uid
1/4,3/8
1/4,3/8
1/4,3/8
1/4,3/8
1/4,3/8
1/4,3/8
Gas
1/2, 5/8
1/2, 5/8
1/2, 5/8
1/2, 5/8
1/2, 5/8
1/2, 5/8
Outdoor
Unit Pipe
Connec-
tions
(in)
Liq-
uid
7/8, 3/4, 5/8
5/8,1/2,3/8
5/8,1/2,3/8
3/4,
5/8,1/2,3/8
3/4,
5/8,1/2,3/8
3/4,
5/8,1/2,3/8
H.P.
Gas
7/8, 3/4, 5/8
1-1/8,7/8,3/4
1-1/8,7/8,3/4
1-1/8,7/8,3/4
1-1/8,7/8,3/4
1-1/8,7/8,3/4
L.P.
Gas
1-1/8, 7/8, 3/4 1-3/8,1-1/8,7/8 1-3/8,1-1/8,7/8 1-3/8,1-1/8,7/8 1-3/8,1-1/8,7/8 1-3/8,1-1/8,7/8
Table 8. MS Box Piping Connection Information
NOTE -
Field piping connections for the outdoor unit gas and liquid pipes are provided on the right and left
side of the mode selection box.
Only one side can be used.
Piping through the box to another mode
selection box is not allowed; use the proper branch joint kit when multiple mode selection boxes are
connected. Remove charging stems and braze shut should that side of the box not be used.
Содержание VPB Series
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