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11.4 BRANCH PIPE CZ-P280BK1
• Before installation work, ”Installation Instructions” for the main air conditioner unit and this Installation Instructions
should be read carefully.
• This branch pipe is for refrigerant R410A.
11.4.1 Details of parts supplied (Make sure that the following attachments are included.)
○
1
Liquid side branch pipe (inner diameter)
○
2
Gas side branch pipe (inner diameter)
○
3
Thermal insulator (Gas side)
○
4
Thermal insulator (Liquid side)
○
5
Installation instructions
1pcs
1pcs
1sheet
○
6
Variant pipes
11.4.2 Indoor/Outdoor unit piping installation
• For details on the allowable amount of refrigerant, allowable pipe lengths and allowable elevation difference, refer
to the installation instructions provided with the indoor unit.
• The diameter of the piping for the indoor and outdoor units differs depending on the model of the unit. (Refer to
respective diameter of the piping for the indoor and the outdoor units and install accordingly.) Use pipe cutters to
cut the appropriate connecting section of the branch pipe to match the diameter of piping for the indoor and
outdoor units.
Pipe diameter for indoor unit
Cooling capacity of
the indoor unit
Liquid side pipe
diameter
Gas side pipe
diameter
2.2 kW - 6.3 kW ø6.35 ø12.7
7.1 kW and above ø9.52 ø15.88
Pipe diameter for indoor unit
Cooling capacity of
the outdoor unit
Liquid side pipe
diameter
Gas side pipe
diameter
22.4 kW ø9.52 Ø19.05
24.0 kW ø9.52 Ø22.22
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