Panasonic S-3650PF3E - Page 158

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 > • Refer to table “Specifi 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