(B) Simultaneous operation multi (Twin, Triple, Double-Twin)
NOTE
Because the indoor units run simultaneously, install them within the same room.
Item
Maximum allowable
Allowable
tubing length
tubing
lengths
Maximum distribution
tubing length
Maximum branch tubing
length
Maximum difference between lengths of No. 1 distribution tubing
(double twin)
Maximum difference between lengths of No. 2 distribution tubing
(double twin)
Maximum
Maximum indoor-outdoor
allowable
height difference
height
Maximum height difference between indoor units
difference
* For connection tubing sizes, refer to table above.
Double-Twin
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).
DC̲Inverter̲Eng.indd 11
DC̲Inverter̲Eng.indd 11
Contents
One-way length of tubing from outdoor
unit to the most distant indoor unit
Maximum length following the first
branch point (No. 1 distribution)
Difference between the maximum
length and minimum length in tubing
following the first branch point
If outdoor unit is higher
If outdoor unit is lower
Twin
Main
tubing L
A
Distribution joint
1
2
Main tubing L
A
L1
Distribution joint No. 1
L2
A
1
2
Distribution joint
No. 2
3
Symbol
Triple
Single
Twin
L + 1
L + 1, L + 2
L
L + 2
L + 3
–
1, 2, 3
1, 2
1 > 2 > 3
1 > 2
1 – 2
–
1 – 2
1 – 3
2 – 3
–
–
–
–
–
–
H1
H1
–
H2
H2, H3, H4
Triple
Main
tubing L
1
A
4
11
Actual
length (m)
Double-Twin
L + L1 + 1, L + L1 + 2
≥
70
L + L2 + 3, L + L2 + 4
L1 + 1, L1 + 2
≥
15
L2 + 3, L2 + 4
Max.: L2 + 4
≥
Min.: L1 + 1
10
(L2 + 4) – (L1+ 1)
L2 > L1
≥
10
L2 – L1
2 > 1
4 > 3
≥
10
2 – 1
4 – 3
≥
30
≥
15
≥
H2, H3, H4, H5, H6, H7
0.5
B
Distribution tubing
3
2
Distribution joint
(purchase separately)
A = APR-P160BG
B = APR-RTP280AGB
2007/07/25 13:21:35
2007/07/25 13:21:35
GB
FR
DE
IT
PT
GR
ES