Daikin FXFQ32LUV1 [12/84] Connection capacity at maximum is 200
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Daikin FXFQ32LUV1 [12/84] Connection capacity at maximum is 200

Daikin FXFQ32LUV1 [12/84] Connection capacity at maximum is 200
MORE FLEXIBLE SYSTEM DESIGN
MORE OPTIONS FOR INSTALLATION LOCATION
The long piping length provides more design flexibility, which can match even large-sized buildings.
Long piping length
For connection of only VRV
indoor units
Conditions of VRV indoor unit connection capacity
Connection capacity at maximum is 200%.
Connection ratio
Note:
*1 For the FXFQ25LU, and FXVQ models, maximum connection ratio is 130% for the
entire range of outdoor units.
If the operational capacity of indoor units is more than 130%, low airflow operation is
enforced in all the indoor units.
*Refer to page 47 for outdoor unit combination details.
50%–200%
Connection ratio
Single outdoor units
Double outdoor units
Triple outdoor units
FXDQ, FXMQ-P, FXAQ models
Applicable
VRV indoor units
200%
Other VRV indoor
unit models*
1
200%
160%
130%
Connection ratio =
Total capacity index of the indoor units
Capacity index of the outdoor units
1. No special requirements up to 40 m. The maximum actual piping length can be 90 m, depending on conditions. Various conditions and requirements have to be met
to allow utilisation of 90 m piping length.
2. When level differences are 50 m or more, the diameter of the main liquid piping size must be increased and connection ratio must be 80% to 130%. If the outdoor unit
is above the indoor unit, a dedicated setting on the outdoor unit is required.
Maximum
allowable
level difference
Maximum
allowable
piping length
Between the outdoor units
and the indoor units
Between the indoor units
Between the outdoor units (Multiple use)
Between the first indoor branch and the farthest indoor unit
Between the outdoor branch and the last outdoor unit
Total piping length
Refrigerant piping length
30 m
5 m
90 m
—
—
q
s
r
r
a+b+c+d+e+f+g+h+i
a+f+g+h+i
f+g+h+i
k+p
165 m 190 m
1000 m
10 m 13 m
Actual
piping length
Equivalent
piping length
Example
Level
Difference
Example
If the outdoor unit is above.
If the outdoor unit is below.
p
q
k
First outdoor branch
f
a
b
First
indoor branch
Multiple use
*The rest of indoor units are
the same as for single use.
90 m*
1
90 m
2
Max.
30 m
Max.
90 m
165
m
190
m
1000
m
Max. equivalent piping length
90
m
2
Max. actual piping length
Max. total piping length
30
m
Max. level difference
between the indoor units
Max. level difference
between the outdoor units
and the indoor units
a
i
s
r
h
g
f
e
d
c
b
First indoor branch
Single use
Colours in the diagram above are merely for identifying pipes referenced with symbols such as a .
2
10

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