Mechanized Duct cleaning for Air Conditioned Area and other Allied Services

Internationally, Indoor Air Quality’ in any centralized air-conditioning system has been a matter of interest and concern to all. It is a well-known fact that after years of air-conditioning use, fungus growth starts inside all corners and joints of the duct, which subsequently becomes a breeding ground for different types of bacteria.  This leads to the formation of micro fouling which later turns to bio fouling if ignored. On top of this, the regular deposit of dirt and dust in the duct becomes an invisible health hazard. For a healthier hygienic environment, this needs to be cleaned regularly.

We have taken a step forward in providing the Duct Cleaning Services to our customers. We use a very sophisticated equipment to carry out the duct cleaning. The equipment consists of an inspection system (a robotic camera), a portable colour TV monitor, an air compressor, a ‘Hi’ vacuum unit, specialized filters, brushes and other accessories and working of the same is as explained to you in our presentation. We thank you for inviting us to quote for the job and are pleased to forward our offer for the same

AC Duct Cleaning Scope of Work:

Our work will include cleaning of the entire duct feeding conditioned air each of the floor with a total duct area, where physically possible. We clean the ducts using several methods, one of which is rotating brush and high pressure air stream nozzle. The other method involves a technician descending the ducts depending upon the size of the duct to manually clean the duct.

We complete our work within 5 to 6 days and rectified all cooling issues.

Upon completion of work we will give an After Service Report which will carry film on before and after shots of the job. This report is normally ready within 10 working days.

Normally we can able to cover approx. 25,000 Sq. ft for air conditioned floor in a week end

Number of Personnel involved

Supervisors-1

Technicians- 5

Methodlogy

  • The supply ducting is zoned, so they can be cleaned separately
  • The access is cut into the supply plenum and the flexible duct from the ‘Hi’ Vacuum unit inlet is connected to the plenum with quick-connect attachment collar. The vacuum is then turned on to create inflow within the supply duct work.
  • Each branch is cleaned separately starting with the branch farthest from the AHU. The air is blasted with compressed air from the air compressor using the special air booster gun. This pushes any dirt or debris from the branch run
  • The main run is cleaned after cleaning all the branch runs. All the loosened debris is pulled backward towards the ‘Hi’ Vacuum unit, and is captured in the filtration / collection system.
  • Once all the supply side of the system has been cleaned, the return duct system if available is then cleaned using the same method.
  • All the grilles and diffusers are cleaned before re-installation.
  • The inspection system and the video camera are used to record the condition of the ducts before and after cleaning and the same can be recorded and Submitted in a video CD for records.

Excluded works & Services

The following are excluded.

  1. We shall not clean false ceiling, RA boxing, and masonry plenums.
  2. Power of 220V single phase shall be provided in AHU room and in AC Premises 3. Any type of wooden, civil work and false ceiling required during execution of work.

Facilities to be provided by the Customer:

  1. Power supply and Ladder should be given by Client 2. Storage Area and Working Place shall be provided by Client.
  2. Lockable space for locking-up our tools under security.
  3. Any other item or work not provided in the Bill of Quantities.

Proposal is subject to the following conditions. No variation/s or alteration/s or addition/s to these conditions will be binding on us, withstanding that such variation/s, alteration/s, addition/s, are contained in your acceptance of this proposal, except when they are specifically accepted in writing.

  1. Variation in Scope of Work -- Our scope of work outlined in our proposal and its annexure, and unit  rates given in value of the contract are strictly for the purpose of demonstrating our capabilities in the field of duct cleaning.

2 Terms of Payment _ we are agreeable for a terms of payment for this project as under:

(i)  Work order should be placed on M/s.ICY AIRCON SERVICE CENTER

(ii)   50% as advance along with the order.

(iii)   Balance 50% on Completion of Work.

  1. Site Facilities -- The customer will provide at his cost, adequate, independent lockable storage facilities, acceptable to us for equipment, materials, tools and tackles brought to site during the execution of the job. We shall be responsible for the safe custody of materials, tools, etc., only if such storage facilities are available.

The customer shall also provide at his cost:

  • 220 Volts single phase power for lighting, tools and equipment etc at multiple locations
  • When cleaning the ducts the fans must be turned off, isolated and tagged out
  • Waste disposal facility for grease deposits, rags, plastics etc.
  1. Taxes & Duties -- It is a condition of this contract that any increase in taxes, levies or rates imposed by any State or Central Government or local authority or any fresh levies imposed by such authorities after the date of quotation and up to the time of billing, for any reason whatsoever, will be paid by the customer.
  2. Validity -- This offer is valid for your acceptance for a period of 30 (Thirty) days from this date. Thanking you and assuring of our best services and attention at all times and looking forward for your valued order