Appendix
Si39-303
106
General Information
7. Appendix
7.1
Operating Noise of Indoor Units
7.1.1 Difference between Catalogue Data and Actual Noise
Operating noise differs depending on the place of measurement (room) because of the various degrees
with which the room reverberates the sound. To determine the amount of reverberation under uniform
conditions, the unit has been measured in a dead room with results having been compiled in the below
table. The actual sound produced in unit operation can be determined from Table 1.
Sound pressure rise due to room reverberation (Higher than catalogue data)
Table 1
Classifications of indoor unit environments (reference data)
Table 2
Notes:
1. Excluding bedrooms
2. Reference values of faint noises in the place of usage
A
B
C
Room Interior
Detection
Floor
Mortar
Linoleum tile
Carpet
Walls
Mortar
Plaster
Fibe
Saroncross finish
Ceiling
Mortar
mineral wool tile
Fibe
Saroncross finish
Average Absorbed Sound (Room with
Approx. 50 m² Floor Area)
0.05
0.12
0.25
Typical office
Estimated value to be added to
catalogue value
11~12
8~8.5
5~6
Classification
Environment
Example
Faint Noises
(NOTE 2)
Recommended
Operating Noise on Site
1
Non-active places requiring silence
Reception rooms, libraries, sitting rooms,
hospitals (examining rooms) (NOTE 1)
~35
~40
2
Sedate business activities that do not
disturb people even over time
Quiet offices, classrooms, small
conference rooms, lobbies
~40
~45
3
Somewhat quiet settings that permit
soft-spoken conversation, typical
activities
Small offices, large conferences rooms,
quiet stores, restaurants
~45
~50
4
Somewhat loud settings that permit
regular conversation, brisk activity
Large offices, typical stores, cafeterias
~50
~55
5
Loud places that permit conversation
in a loud voice, highly active place
with many people
Loud large-side offices, large cafeterias,
loud stores
~55
~60
6
Rather loud settings
Factories, gymnasiums, recreational
places like pachinko parlors
~60
~65
Summary of Contents for VRV II Series
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Page 31: ...Si39 303 Installation General Information 25 Flaring Procedure...
Page 124: ...Appendix Si39 303 118 General Information 3P114237A...
Page 141: ...Si39 303 Appendix General Information 135 RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B 4D040338A...
Page 142: ...Appendix Si39 303 136 General Information RXYQ14MY1B RXYQ16MY1B 4D040339A...
Page 144: ...Appendix Si39 303 138 General Information 7 11 Wiring Diagrams 7 11 1 Outdoor Unit RXYQ5MY1B...
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Page 146: ...Appendix Si39 303 140 General Information RXYQ14MY1B RXYQ16MY1B 3D038058...
Page 147: ...Si39 303 Appendix General Information 141 7 11 2 Field Wiring RXYQ5 16MY1B 3D040746...
Page 148: ...Appendix Si39 303 142 General Information RXYQ18 32MY1B 3D040747...
Page 149: ...Si39 303 Appendix General Information 143 RXYQ34 48MY1B 3D040748...
Page 158: ...Appendix Si39 303 152 General Information...
Page 180: ...Refrigerant Piping Si39 303 174 Installation Manual...
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