Sanyo Big PACi 18 Series - Page 121

1
1-116
NOTE
Because the indoor units run simultaneously, install them within the same room
Table 1-2 Table for Managing Tubing Length and Height Differential
Item Contents
Symbol
Actual
length
(m
)
Single Twin Triple Double-Twin
Allowable
tubing
lengths
Maximum
allowable tubing
length
One-way length of tubing from
outdoor unit to the most distant
indoor unit
L
L +
1
L + 2
L + 1, L + 2,
L + 3
L + L1 + 1, L + L1 + 2
L + L2 + 3, L + L2 + 4
100
Maximum
distribution tubing
length
Maximum length following the first
branch point (No. 1 distribution)
–
1,2 1,2,3
L1 + 1, L1 + 2
L2 + 3, L2 + 4
20
Maximum length following the
second branch point (double twin)
–
1, 2, 3, 4 15
Sum Total Length
Maximum allowable tubing length
and the sum total of other tubing
L +
1 + 2 + 3
L + L1 + L2 + 1 + 2
+ 3+ 4
120
Maximum branch tubing length
Difference between the maximum
length and minimum length in
tubing following the first branch
point
–
1 >
2
1 – 2
1 > 2 > 3
1 – 3
Max: L2 + 2
Min: L1 + 1
(L2 + 4) – (L1 + 1)
10
Maximum difference between lengths of No. 1 distribution tubing
(double twin)
–
L2 > L1
L2 – L1
10
Maximum
allowable
height
difference
Maximum indoor-
outdoor height
difference
If outdoor unit is higher
H1 30
If outdoor unit is lower
Maximum height difference between indoor units H2, H3, H4, H5, H6, H7 0.5
C
A
A
1
2
2
C
1
1
2
3
3
4
B
H1
H1
H1
H2
H2
H2
H4H3
H3 H4
H6
H7
H5
L1
L2
NOTE
For refrigerant tube branches, use the optional distribution joints.
For cautions on the use of the optional distribution joints, be sure to refer to the provided instruction sheet. Also, be careful to
install them in the correct direction (orientation).
* For connection tubing sizes, refer to Table 1-3.
Main
tubing L
Distribution joint No.1
Distribution joint
No. 2
Distribution joint
(purchase separately)
A = APR-P680BG
(more than 16kW, less than 68kW)
B = APR-RTP280AGB
C = APR-P160B
G
Double-Twin
Main
tubing L
Main
tubing L
Distribution tubing
Distribution joint
Twin
Triple
Distribution joint No.2
–
–
–
–
–
–
–
H2
H2, H3, H4
(B) Simultaneous operation multi (Twin, Triple, Double-Twin)
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