Specifications
858
FDC-HKX
Notes (1) Use the designated piping size for the piping between
the outdoor unit and the first branch.
(2) Choose the appropriate sized reducer for piping between
the branch pipe and the indoor unit.
The size of reducer should match the piping size of the
indoor unit.
(3) Locate the branch pipe horizontally or vertically as
illustrated to the right.
Reference: The shape of the flow divider pipe is shown on the 856 page.
Example of piping (2)
(Total capacity: 27800 W)
Outdoor unit: FDC224type
Indoor unit: Combination of 8 units [Branch pipe set : DIS-1KX10-E × 2 set, DIS-1KX30-E × 5 set]
Floor
Floor
Floor
Good
Good
No
No
Vertically
Horizontally
Pictogram
: Branch pipe
: Reducer
ID
OD
Inner finish
Outer finish
Gas line
Main piping (φ
25.4
)
Outdoor unit
Indoor unit <I>
<II>
<III>
<VII>
<VIII>
φ
12.7
φ
15.88
φ
15.88
φ
12.7
φ
12.7
φ
6.35
φ
9.52
φ
9.52
φ
6.35
φ
6.35
22HKX
22HKX
56HKX
56HKX
22HKX
Liquid line
Main piping (φ
12.7
)
Sum up to down
stream capacity
180
or more
(φ
25.4
)
Sum up to down
stream capacity
less than
101
(not including 101)
(φ
15.88
)
Sum up to down
stream capacity
less than
180
(not including 180)
101
or more
(φ
19.05
)
Sum up to down
stream capacity
180
or more
(φ
12.7
)
Sum up to down
stream capacity
less than
180
(not including
180
)
(φ
9.52
)
4
2
2
2
1
1
<IV>
φ
12.7
φ
6.35
22HKX
2
1
<V>
φ
12.7
φ
6.35
22HKX
2
1
<VI>
φ
15.88
φ
9.52
56HKX
4
3
1
3