Toshiba RBM-Y0611FU4PUL Installation Manual page 9

• Be sure to connect the indoor unit to port No. 1 of the Flow Selector unit. (Figure 1)
• Allows the concatenation of two neighboring ports.(Connecting pipes are arranged locally.) (Figure 2)
• The maximum capacity of the indoor unit that may be connected downstream of the combined port is
123(kBtu/h).
• Please observe the following
• Do not combine more than 3 ports. (Figure 3)
• Do not make connections between non-adjacent ports. (Figure 4)
• Do not combine Port No.4 and No.5 (in the case of 8 port and 12 port models) and Port No.8 and No.9
(in the case of 12 port model). (Figure 5)
• Do not combine Port No.2 and No.3, Port No.6 and No.7, Port No.10 and No.11. (Figure 6)
q Figure 1
Incorrect
Outdoor unit
Flow Selector unit Multi-port type
Piping
Port No.1
Indoor unit
q Figure 3
Incorrect
Outdoor unit
Flow Selector unit Multi-port type
Piping
Indoor unit
NOTE : Figure example has shown in the case of 4 port, but 8 port and 12 port are same.
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01_IM_1143017001-1_EN.indd 8 01_IM_1143017001-1_EN.indd 8
q Figure 2
Correct
Outdoor unit
Flow Selector unit Multi-port type
Piping
Indoor unit
q Figure 4
Incorrect
Outdoor unit
Flow Selector unit Multi-port type
Piping
Indoor unit
q Figure 5
Incorrect
Outdoor unit
Piping
Indoor unit
Port No.5
q Figure 6
Incorrect
Outdoor unit
Piping
Indoor unit
Port No.3
NOTE : Figure example has shown in the case of 12 port, but 4 port and 8 port are same.
* Be sure to wrap the pipe with wet cloth when applying brazing.
Wet cloth
Remove the cap.
Insert the connecting pipe.
• For a brazing work of the refrigerant pipes, be sure to use nitrogen gas in order to prevent oxidation of the inside
of the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale may occur.
* Remove all flux after brazing.
8
Flow Selector unit Multi-port type
Port No.9
Flow Selector unit Multi-port type
Port No.7 Port No.11
CAUTION
Apply brazing to full circumference.
EN
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ID
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