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1
1-276
Tubing Size
(A) Single type
Refrigerant tubing between the indoor and outdoor units should be kept as short as possible.
The lengths of the refrigerant tubes between the indoor and outdoor units are limited by the elevation difference
between the 2 units. During tubing work, try to make both the tubing length (L) and the difference in elevation (H1)
as short as possible.
H1
Single
Main tubing L
Outdoor unit type
U-50PE1E5
U-60PEY1E5
U-71PEY1E5
Maximum allowable
tubing length
40 m
50 m
Charge-less tubing
length
(actual length)
3 – 30 m
3 – 20 m
Additional charge per 1 m
20
g
40
g
(B) Simultaneous operation multi (Twin)
N OT E
Because the indoor units run simultaneously, install them within the same room.
Table 1-1
Contents
m
e
t
I
Symbol
Actual length (m)
Single
Twin
50
60 – 71
single
71
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
40
50
40
Maximum
distribution
tubing length
Maximum length following
the first branch point (No. 1
distribution)
–
1, 2
15
Maximum branch tubing
length
Difference between the
maximum length and
minimum length in tubing
following the first branch point
–
1 > 2
1 – 2
10
Maximum difference between lengths of No. 1 distribution
tubing (double twin)
–
–
–
Maximum difference between lengths of No. 2 distribution
tubing (double twin)
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Maximum
allowable
height
difference
Maximum
indoor-
outdoor height
difference
If outdoor unit is higher
H1
30
30
30
If outdoor unit is lower
15
15
15
Maximum height difference between indoor units
H2
0.5
* For connection tubing sizes, refer to Table above.
1
2
H1
H2
Twin
CZ-P155BK1
Main
tubing L
Distribution joint
N OT E
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).
SM830231-02̲Single̲欧州.indb 276
SM830231-02̲Single̲欧州.indb 276
2014/09/19 13:21:45
2014/09/19 13:21:45
Содержание S-36PU1E5A
Страница 486: ... MEMO 1 476 SM830231 02 Single 欧州 indb 476 SM830231 02 Single 欧州 indb 476 2014 09 19 13 22 27 2014 09 19 13 22 27 ...
Страница 490: ... MEMO 2 4 SM830231 02 Single 欧州 indb 4 SM830231 02 Single 欧州 indb 4 2014 09 05 11 28 19 2014 09 05 11 28 19 ...
Страница 692: ... MEMO 8 34 SM830231 02 Single 欧州 indb 34 SM830231 02 Single 欧州 indb 34 2014 09 09 21 22 28 2014 09 09 21 22 28 ...
Страница 693: ...201409 SM830231 02 Single 欧州 indb 1 SM830231 02 Single 欧州 indb 1 2014 09 19 17 14 42 2014 09 19 17 14 42 ...