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(3) Piping Connection
Perform the piping connection according to Table 5.1.
Connected Indoor
Unit Capacity: Q
(kW)
Q ≤ 6.3
6.3 < Q < 16.0
Q = 16.0
Connected Indoor
Unit Capacity: Q
(kW)
16.0 < Q ≤ 25.0
25.0 < Q ≤ 28.0
*1: Refer to the installation and maintenance manual for the outdoor unit for the following piping size.
• Upstream piping of Switch Box
• Downstream piping of Switch Box when the branch is located downstream of Switch Box.
*2: Refer to Section 5.1 for the flaring work.
NOTE:
The accessory numbers are listed in Table 4.1.
(1) Reducer
Low Pressure Gas Pipe
(Field-Supplied) (φ15.88(5/8))
High/Low Pressure Gas Pipe
(Field-Supplied) (φ12.7(1/2))
(1) Reducer
Low Pressure Gas Pipe
(Field-Supplied) (φ15.88(5/8))
High/Low Pressure Gas Pipe
(Field-Supplied) (φ12.7(1/2))
Low Pressure Gas Pipe
(Field-Supplied) (φ19.05(3/4))
High/Low Pressure Gas Pipe
(Field-Supplied) (φ15.88(5/8))
Low Pressure Gas Pipe
(Field-Supplied) (φ19.05(3/4))
High/Low Pressure Gas Pipe
(Field-Supplied) (φ15.88(5/8))
Low Pressure Gas Pipe
(Field-Supplied) (φ22.2(7/8))
High/Low Pressure Gas Pipe
(Field-Supplied) (φ19.05(3/4))
HCHS-N06X
(3) Accessory Pipe
(Cut the expanded part of the pipe end.)
Switch Box
(Upper Surface)
(2) Accessory Pipe
(3) Accessory Pipe
(Cut the expanded part of the pipe end.)
Switch Box
(Upper Surface)
(2) Accessory Pipe
(3) Accessory Pipe
Switch Box
(Upper Surface)
*2
Field Flaring Work
HCHS-N10X
(2) Accessory Pipe
Switch Box
(Upper Surface)
*2
Field Flaring Work
(2) Accessory Pipe
Switch Box
(Upper Surface)
(4) Accessory Pipe
13
Unit: mm (inch)
*1
(2) Accessory Pipe
Gas Pipe
(Field-Supplied)
(φ12.7(1/2))
*2
Field Flaring Work
Gas Pipe
(Field-Supplied)
(φ15.88(5/8))
*2
Field Flaring Work
Gas Pipe
(Field-Supplied)
(φ15.88(5/8))
Unit: mm (inch)
(2) Accessory Pipe
Gas Pipe
(Field-Supplied)
(φ19.05(3/4))
(2) Accessory Pipe
Gas Pipe
(Field-Supplied)
(φ22.2(7/8))
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