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Pipe connecting process
• Connect the pipes. (Be sure to use port No.1)
• Use attached-pipe (accessory) to connect the pipe with different diameter from the pipe to Flow Selector unit.
Suction gas pipe
Liquid pipe
Attached pipe
for main-pipe
HP/LP gas pipe
(Accessory)
HP: high pressure
LP: low pressure
• Use stopper-pipe (accessory) to the port to which indoor unit is not connected.
Be sure to use port No.1
EN-19
Be sure to use port No.1
Liquid pipe
Attached pipe
(Accessory)
Gas pipe
Stopper pipe
(Accessory)
• 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 12.8 HP
(horsepower).
• 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)
Figure 1
Incorrect
Outdoor unit
Flow Selector unit Multi-port type
Piping
Port No.1
Indoor unit
Figure 3
Incorrect
Outdoor unit
Flow Selector unit Multi-port type
Piping
Indoor unit
10
Figure 2
Correct
Outdoor unit
Flow Selector unit Multi-port type
Piping
Indoor unit
Figure 4
Incorrect
Outdoor unit
Flow Selector unit Multi-port type
Piping
Indoor unit
EN-20
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