11
1-9-4
11
• Type F1
External Air Intake Volume & Resistance Within Unit / Operation Noise Characteristics (continued)
Noise with only external
air intake dB(A)
External Air Intake Volume (m
3
/h)
External Air Intake Volume & Resistance Within Unit/
Operation Noise Characteristics
With the External Air Intake Flange Attached
In a Case of External Air Intake to Unit Directly (Using external air intake cylindrical flange)
1.
shown in the diagram for operation noise characteristics and the operation noise of the unit as stipulated in the catalogue.
2.
Calculate the operation noise if external air is being fed by combining the noise when only external air is being fed as
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.
External air intake cylindrical flange
Connection duct: diameter ø150
2500 50 100 150 200
0
5
10
15
20
25
30
35
40
45
50
25
30
35
40
Resistance within the unit
(High speed wind)
Operation noise
(External air intake only)
The amount of external air intake that is possible to feed when it is fed directly into the unit
* T he ope ration noise for models that us e 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.
Permissible air intake
volume (m
3
/h)
Type
180 180
60 71
240 240 240
100 125 140
Resistance within the unit (Pa)
SM830266-00_大洋州向けR32シングルTD&SM.indb 4 18/03/29 10:19:47
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