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Vibration-isolating VE for outdoor units
Please refer to the table below for selecting vibration isolation in outdoor units.
Vibration-isolating materials for outdoor units include the TSU series, TSM series, and Dimple Pad series.
The TSU series has excellent earthquake resistance and vibration-isolating performance.
The TSU series has better earthquake resistance compared to the TSM series and the Dimple Pad series, however, the latter two series have lower prices.
vibration-isolating materials name | Multi vibration-isolating unit TSU SERIES ![]() |
Hybrid mat TSM SERIES ![]() |
High-performance rubber vibration isolator Dimple Pad SERIES ![]() |
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Vibration-isolating performance | ◎ (Approx. 4Hz〜5Hz) |
◯ (Approx. 7Hz〜9Hz) |
△ (Approx. 9Hz〜12Hz) |
Earthquake resistance | ◎ | △ (◯ with use of additional components) |
◯ |
Price | △ ※*¥300,000 (reference retail price) if 10 outdoor units are installed on the common frame; however, common frame steel material is not included. |
◯ ※¥204,800 (reference retail price) when installing 10 outdoor units |
◯ ※¥202,000 (reference retail price) when installing 10 outdoor units |
Advantages |
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Disadvantages |
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- Common frame
- Independent foundations (“geta” foundations)
- outdoor unit x 10
Example of vibration-isolating material installation



Minimum documentation necessary for studying outdoor unit vibration-isolating VE
- piping equipment diagram
- List of equipment with model number
Comparison of vibration-isolating materials based on actual measurement

Examples of vibration and noise tolerance
Vibration | VL(dB) | 45 | 50 | 55 | 60 | 65 | |||||
Annoyance | Indifference・・・・・・・・・・・・・・・・・Vague sense of vibration・・・・・・・・・・・・・・・Does not bother people・・・・・・・・・・・・・・・・・People feel that it is annoying | ||||||||||
Noise | dB(A) | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | |
NC | 10~15 | 15~20 | 20~25 | 25~30 | 30~35 | 35~40 | 40~45 | 45~50 | 50~55 | ||
Loudness | Perceived silence・・・・・・・・・・・・・・・Extremely quiet・・・・・・・・・・・・・・・・・・Does not bother people・・・・・・・・・・・・・・Perceive noise・・・・・・・・・・Noise cannot be ignored | ||||||||||
Affects conversation | |||||||||||
Affects telephone calls | |||||||||||
Spatial usage | Studio | Sound-proof room |
Announcement studio |
Radio studio |
TV studio |
Master control room | |||||
Assembly hall | Theater (medium) | Stage theater | Cinema/planetarium | ||||||||
Hospital | Special hospital |
Surgical theater Hospital ward |
Consulting room | Hospital laboratory | |||||||
Hotel residence | |
Bedroom・Guest room | Banquet hall | ||||||||
Typical office | Reception room | Small conference room | Typical office | Typing computer room |
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Public building | Art gallery Museum |
Reading room | Municipal hall/meeting room | Indoor sports facility (large) |
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School/church | Auditorium Chapel |
Laboratory・Regular classroom | |||||||||
Commercial building |