1
1-11-2-1-7
1. Outdoor
Check of Density Limit
The refrigerant (R32), which is used in the air conditioner, is a
fl
ammable refrigerant.
So the requirements for installation space of appliance are determined according to the refrigerant charge amount (m
c
) used in the appliance.
The minimum indoor
fl
oor space compared with the amount of refrigerant is roughly as follows:
m
c
: The refrigerant charge amount (Total of refrigerant at shipment and refrigerant charge amount in the
fi
eld).
•
Please calculate m
c
according to piping length in the
fi
eld as shown in the calculation example below.
< Calculating example >
• Re
fer to table “Speci
fi
cation for pipe connecting indoor unit to outdoor unit.”.
(conditions : U-71PZ3E5 Total pipe length = 40 m)
m
c
= 1 + 2 = 1 + (3
(4 – 5 )) = 1.32 + (0.017 (40 m – 10 m)) = 1.83
1 : Refrigerant charged at shipment
2 : Refrigerant charge amount in the
fi
eld
3 : Additional charge per 1m
4 : Total pipe length
5 : Charge-less pipe length(max.)
•
If the total piping length is within the maximum value of the charge-less piping length, refrigerant charge in
the
fi
eld is unnecessary.
m
max
: The maximum refrigerant charge amount
[
A
min] : minimum indoor
fl
oor space (m
2
)
[
A
min]
:
minimum
indoor
fl
oor
space
(m
2
)
[m
c
] : the refrigerant charge
amount ( )
[m
c
] : the refrigerant charge
amount ( )
40
35
30
25
20
15
10
5
0
1.22
Line 3
Line 2
Line 1
1.22
1.83
1.83
6
5
4
3
2
1
0
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
2
2.5
m
c
≤1.22
: Can be installed
1.22 < m
c
≤ m
max
: Can be installed above
“Density Limit Line” *1
*1 See “Density Limit
Line” in Table 1-11-2-1-1
and Fig. 1-11-2-1-1,
Fig. 1-11-2-1-2 of indoor
unit.
m
c
> m
max
: Cannot be installed
U-36PZ3E5
U-50PZ3E5
U-60PZ3E5
U-71PZ3E5
m
max
( )
0.95
1.33
1.49
1.83
Table 1-11-2-1-1
Installation height of Indoor Unit: hinst
Indoor Unit Type
Density Limit Line
hinst ≥ 2.2 m
4-Way Cassette
Low Silhouette Ducted
Line 1
1.8 m ≤ hinst < 2.2 m
Low Silhouette Ducted
Line 2
Low Silhouette Ducted
Line 3
hinst < 1.8 m
SM830283-00_欧州向け R32シングル36-71形TD&SM.indb 7
20/01/30 10:25:59
Содержание S-3650PF3E
Страница 20: ...19 MEMO SM830283 00_欧州向け R32シングル36 71形TD SM indb 19 2020 01 29 21 46 03 ...
Страница 178: ... MEMO 1 13 5 SM830283 00_欧州向け R32シングル36 71形TD SM indb 5 20 01 30 10 26 09 ...
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Страница 204: ... MEMO 3 2 1 3 SM830283 00_欧州向け R32シングル36 71形TD SM indb 3 20 01 28 11 25 46 ...
Страница 270: ... MEMO 5 4 3 SM830283 00_欧州向け R32シングル36 71形TD SM indb 3 2020 01 29 21 17 57 ...
Страница 272: ... MEMO 6 1 SM830283 00_欧州向け R32シングル36 71形TD SM indb 1 20 01 20 10 15 08 ...
Страница 294: ... MEMO 7 21 SM830283 00_欧州向け R32シングル36 71形TD SM indb 21 20 01 28 11 22 25 ...
Страница 321: ...202001 SM830283 00_欧州向け R32シングル36 71形TD SM indb 1 20 01 23 9 32 11 ...