Dear All,
Thank you very much for restarting the discussion. Requesting other members to come forward with some more inputs.
@Dipil,
Your presentation has detailed information, thank you very much.
@Raghu and Kanathan,
Based on the discussion with one of my colleagues working in HVAC systems, many buildings are not provided with sensors inside the ducts even though they have a fire alarm system. If sensors are not provided in the ducts, the fire dampers will be equipped with lead at the springs, creating a purely mechanical system. This lead will melt at high temperatures, causing the fire dampers to close. In most fire cases, smoke is the problem, and often the fire does not reach the dampers, so they will not close.
Please comment on my inputs.
From India, Hyderabad
Acknowledge(0)
Amend(0)
39Thank you very much for restarting the discussion. Requesting other members to come forward with some more inputs.
@Dipil,
Your presentation has detailed information, thank you very much.
@Raghu and Kanathan,
Based on the discussion with one of my colleagues working in HVAC systems, many buildings are not provided with sensors inside the ducts even though they have a fire alarm system. If sensors are not provided in the ducts, the fire dampers will be equipped with lead at the springs, creating a purely mechanical system. This lead will melt at high temperatures, causing the fire dampers to close. In most fire cases, smoke is the problem, and often the fire does not reach the dampers, so they will not close.
Please comment on my inputs.
From India, Hyderabad
Acknowledge(0)Amend(0)
Dear Raghu, Nathan & SRM,
Thanks for your detailed explanation on the HVAC system and the safety arrangements one should ensure in these ducts.
I have discussed this case with our technical people who are dealing with the HVAC system. We have a Package AC System and VRS System. In both systems, we have manually operated dampers. Auto-sensing dampers are not compulsory and have not been installed in our system.
Can anyone provide information on the requirement of auto cut-off dampers in AC ducts according to any rules/acts? If so, I can propose to my management the modification of our existing system based on that.
If anyone can share a drawing of a safe HVAC ducting system, it would be of great help. I hope to receive more technical inputs on this matter.
Thanks in advance.
From India
Acknowledge(0)Amend(0)
Thanks for your detailed explanation on the HVAC system and the safety arrangements one should ensure in these ducts.
I have discussed this case with our technical people who are dealing with the HVAC system. We have a Package AC System and VRS System. In both systems, we have manually operated dampers. Auto-sensing dampers are not compulsory and have not been installed in our system.
Can anyone provide information on the requirement of auto cut-off dampers in AC ducts according to any rules/acts? If so, I can propose to my management the modification of our existing system based on that.
If anyone can share a drawing of a safe HVAC ducting system, it would be of great help. I hope to receive more technical inputs on this matter.
Thanks in advance.
From India
Acknowledge(0)Amend(0)
Dear Bhaskar,
Thanks for your inputs. Keep on encouraging us.
Dear Srinivasa Rao,
You added a valid point from your side regarding our discussion. Thanks for your input.
Team,
See the attached NFPA and other international codes for INSPECTION CODES of FIRE AND SMOKE DAMPER for your use.
From United States, Fpo
Acknowledge(0)Amend(0)
Thanks for your inputs. Keep on encouraging us.
Dear Srinivasa Rao,
You added a valid point from your side regarding our discussion. Thanks for your input.
Team,
See the attached NFPA and other international codes for INSPECTION CODES of FIRE AND SMOKE DAMPER for your use.
From United States, Fpo
Acknowledge(0)Amend(0)
Dear Dipil Kumar,
Fire/Smoke dampers will not be installed in small units like package, VRS, Split systems. These systems will be installed for huge centralized systems, but there are possibilities for installation for small systems. However, due to cost restraints, no one will recommend it. Nowadays, it is a common practice for all LEED certified green projects.
Click the links below for more information:
- [Building Code PDF](http://www.greenheck.com/media/pdf/otherinfo/buildingcode.pdf)
- [Fire Control Dampers, Volume Control Dampers, Fire Dampers, High Torque Rotary Actuators, Linear Actuators, Multiturn Actuators, Pneumatic Rotary Actuators, Electrohydraulic Actuators, Actuated Valves in Mumbai, India](http://www.tscindia.com/fire_damper.html)
From China, Shanghai
Acknowledge(0)Amend(0)
Fire/Smoke dampers will not be installed in small units like package, VRS, Split systems. These systems will be installed for huge centralized systems, but there are possibilities for installation for small systems. However, due to cost restraints, no one will recommend it. Nowadays, it is a common practice for all LEED certified green projects.
Click the links below for more information:
- [Building Code PDF](http://www.greenheck.com/media/pdf/otherinfo/buildingcode.pdf)
- [Fire Control Dampers, Volume Control Dampers, Fire Dampers, High Torque Rotary Actuators, Linear Actuators, Multiturn Actuators, Pneumatic Rotary Actuators, Electrohydraulic Actuators, Actuated Valves in Mumbai, India](http://www.tscindia.com/fire_damper.html)
From China, Shanghai
Acknowledge(0)Amend(0)Looking for something specific? - Join & Be Part Of Our Community and get connected with the right people who can help. Our AI-powered platform provides real-time fact-checking, peer-reviewed insights, and a vast historical knowledge base to support your search.