1
1-9-4
With the External Air Intake Flange Attached
1.
External Air Intake Volume & Resistance Within Unit/
Operation Noise Characteristics
1-9-2-2. Middle Static Pressure Duct (Type F3)
2.
In a Case of External Air Intake to Unit Directly (Using external air intake cylindrical flange)
External air intake cylindrical flange
Connection duct: diameter ø150
The amount of external air intake that is possible to feed when it is fed directly into the unit
Calculate the operation noise if external air is being fed by combining the noise when only external air is being fed as
shown in the diagram for operation noise characteristics and the operation noise of the unit as stipulated in the catalogue.
The operation noise conforms to JIS standards and constitute measurements taken in an anechoic chamber 1.5m directly
below the indoor unit. Under normal circumstances, the diagram shown above is greater owing to the effects of surrounding
noise and reverberation when the unit is actually installed.
Type
S-3650PF3E S-6071PF3E
74 (60)*
105 (71)*
53 (36)*
65 (50)*
Permissible Air Intake
Volume (m³/h)
*For S-6071PF3E (60) and S-6071PF3E (71), see the Combination
Table items 60 and 71
on page 15.
*For S-3650PF3E (36) and S-3650PF3E (50), see the Combination
Table items 36 and 50
on page 15.
* The operation noise for models that use small units is lower, so use values that are within the range shown in the
above table. Using values that exceed these will result in noise when only external air is fed being louder than the
noise emitted from the unit.
25
30
35
40
45
0
5
10
15
20
25
30
35
40
45
50
0 50 100 150 200 250
Noise with only external
air intake dB(A)
Resistance within the unit (Pa)
External Air Intake Volume (m
3
/h)
Resistance within the unit
(High speed wind)
Operation noise
(External air intake only)
SM830283-00_欧州向け R32シングル36-71形TD&SM.indb 4 20/01/30 10:24:55
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