Panasonic CZ-KPY3A series Service Manual

1
1-263
Resistance within the unit (Pa)
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 Chamber Attached
External Air Intake Volume & Resistance Within Unit / Operation Noise Characteristics1-9-2.
4-Way Cassette (Type U1)
Use the following diagram along with the section "1-9-1. Precautions Regarding External Air Intake"
1-9-2-1. In a Case of External Air Intake Using Air Intake Chamber (CZ-FCU2+CZ-ATU2)
1.
Sample selection of booster fans
In a case of necessity at 200m
3
/h of external air intake:
Therefore, a booster is required to save a total 95 Pa of static pressure.
1. Resistance within the unit Diagram from "Resistance within the unit" 55 Pa
2. Duct resistance in case of duct with 4m length
Duct resistance Diagram from "Air Flow Volume for
Flexible Cylindrical Duct-Pressure Loss" (=10 Pa/m x 4m)40 Pa
Total 95 Pa
Calculate the operation noise when 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.
2.
The amount of external air that is possible to feed when external air intake chamber is in use
(CZ-FCU2+CZ-ATU2)
* 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.
Permissible air intake
volume (m
3
/h)
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.
CAUTION
100
90
80
70
60
50
40
30
20
10
0
-10
500
50
40
30
20
100 150 200 240
Resistance within the unit
(High speed wind)
Operation noise
(External air intake only)
Filter chamber
(CZ-FCU2)
Kit for external air intake (for chamber)
(CZ-ATU2)
Connection duct: diameter ø100
Type
180180 180 190 240
36 45 50 60 71
240 240 240
100 125 140
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Panasonic CZ-KPY3A series Specifications

General

Brand	Panasonic
Model	CZ-KPY3A series
Category	Air Conditioner
Language	English