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Product Guarantee by Cemmi Trading Co., Ltd.

Tested by Vipac Engineers & Scientists Ltd., Australia
Airflow and Acoustic Performance Test of

  1. Square 4-way Ceiling Diffuser (WCD-4)
  2. Square 4-way Ceiling Diffuser (SCD-4)
  3. Square 4-way Ceiling Diffuser (SCD-4) with Damper – Fully Open
  4. Square 4-way Ceiling Diffuser (SCD-4) with Damper – Close A
  5. Square 4-way Ceiling Diffuser (SCD-4) with Damper – Close B
  6. Rectangular 4-way Ceiling Diffuser (RCDA)
  7. Egg Crate Exhaust Grille
  8. Egg Crate Exhaust Grille with Damper – Fully Open
  9. Egg Crate Exhaust Grille with Damper – Close A
  10. Egg Crate Exhaust Grille with Damper – Close B
  11. Single Deflection Grille (ASG-V)
  12. Double Deflection Grille (ADG-V)
  13. Double Deflection Grille (ADG-V) with Damper – Fully Open
  14. Double Deflection Grille (ADG-V) with Damper – Close A
  15. Double Deflection Grille (ADG-V) with Damper – Close B
  16. Fresh Air Grille (FAG-1)
  17. Return Air Grille (RAG-1)
  18. Linear Slot Diffuser (LSD-2) Standard Type
  19. Linear Slot Diffuser (LSD-2) Type A – “J Blade”
  20. Linear Slot Diffuser (LSD-2) Type B – “Teardrop”

Tested by Vipac Engineers & Scientists Ltd., Australia
Effect of Damper on the Airflow and Acoustic Performance of

  1. SCD4 Ceiling Diffuser
  2. Single and Double Deflection Grilles
  3. Egg Crate Return Air Grille

Test by Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang
Airflow and Pressure Drop Test of

  1. Louver 2” THK (Z Blade 2”)
  2. Louver 4” THK (Z Blade 4”)

Test by Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang
Airflow and Pressure Drop Test of

  1. Linear Bar Grille
Tested by King Mongkut's University of Technology Thonburi
Melting Point of Fusible Link and Heat Resistance of
1. Fire Damper

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