4
Duct Cleaning Summary
*
1.
Before using the COBRA VI to clean the air system, the supply and return duct diffuser grills must be
removed. Also, pre-vacuum and plug these openings, and then attach the Turbojet or other negative
air machine to the system. If the Return has a Filter, Remove the filter, place it in a Plastic bag and
reinstall the filter into the return to block air flow through the air system during cleaning. Do not
forget to remove this bag when the job is complete.
2.
CAUTION:
DO NOT INSERT OR REMOVE THE BRUSH FROM THE DUCT WHILE THE
BRUSH IS TURNING
3.
Begin at the duct opening farthest from the furnace/air conditioner.
4.
With the Brush STOPPED, insert the brush and cable assembly one or two feet into the duct to be
cleaned. THE MACHINE END OF THE CABLE MUST BE STRAIGHT FOR AT LEAST 4 to 5
FEET TO REDUCE THE FRICTION and HEATING OF THE CABLE HOUSING. A tight bend in
the cable will cause friction that will damage the cable housing and cable resulting in costly repairs or
replacement of the cable.
5.
Start the brush by turning on the main power, press the START switch on the Remote and it will start
in the lowest speed. The brush will begin to rotate within a few seconds.
NOTE:
The brush will begin to turn slowly in the Lowest Speed setting. Most duct cleaning will
be done between 2 and 3 of the 4 speeds.
6.
Push the Flex-E-Bristle Brush into the duct with a smooth gentle force. The brush will expand and
compress to clean any size duct from 4” to 18” high and any width.
CAUTION:
To clean duct board ducts, or older flex duct systems, the COBRA VI Brush system
should be used at a lower speeds (1 or 2) with caution as its aggressive cleaning action may
damage these delicate ducts. Internally insulated ducts, brittle flex ducts and fraying duct board
ducts should NOT be cleaned with a power brush.
(See Forward and Reverse Air Whisk and Sidewinder, on
www.air-care.com
)
7.
When the end of the duct is reached, the cable can be pulled slowly back toward the opening. If the
duct is rectangular in shape, Press the “Change Rotation” on the Remote. The rotation of the brush in
this direction will allow it to “Walk” to the opposite side of the duct from what was cleaned going into
the duct and assure that both sides of the rectangular duct are cleaned.
8.
Stop the brush 1 or 2 feet from the duct entrance then remove the brush. This duct opening can now
be plugged with the foam plug, and the next duct opening cleaned in the same manner. Repeat this on
each duct opening until all have been cleaned.
9.
The duct system is now ready to be decontaminated by fogging in a duct sealant like Soot Set and an
EPA registered sanitizer such as Envirocon.
* For a complete Duct Cleaning Procedure Summary refer to the back of this manual. Air-Care also has classroom and self-
study training programs available. Please visit our website at
www.air-care.com
or call 800-322-9919 for a free catalog.
