Aircare COBRA-VI User manual

1
Air-Care is a proud member of:
Air-Care is a Division of D.P.L. Enterprises, Inc.
3868 E. Post Road, Las Vegas, NV 89120 [phone], Fax [phone]
Website: www.air-care.com, E-mail: [e-mail]
NAFA
National Air Filter Association
COBRA-VI
Power Brush System
MM0206
Revised 25Jun2016
Table of Contents
Unpacking & Safety information 2
Operating Instructions 3
Duct Cleaning with COBRA VI 4
Component Names & Locations 6
Options & cable repair parts 6
Parts List 8
Troubleshooting guide 9
Cable repairs & Specifications 10
Glossary 11
Warranty 12
ISSA
International Sanitary Supply
Association
Cobra VI with Accessories
Part Number: FG0194

2
Unpacking & Installation Instructions
Remove the outer box and inspect for damage. Report all damage immediately to your carrier. If special
setup instructions are required, they will be taped to the outside of the equipment or in the “Operating”
section of this manual, available online.
Inspect all of the packing material for small parts before discarding packaging material. Report all damage
to Air-Care immediately. Any attempt at repairing damages may void warranty.
Check that all parts are present (See Pages 6-7)
1. COBRA-VI variable speed motor drive unit.
2. Flexible drive cable, 3/8” core by 35 feet long.
3. Flex-E-Bristle Brush, for use in 4” to 18” diameter air ducts.
4. 5 Button Wireless remote control handheld transmitter with 2-AA batteries installed.
5. Commercial Option (12”-36” diameter Flex-E-Bristle Brush.)
Safety Precautions:
Always use safe and common sense precautions when working with Air-Care equipment. Do not block
walkways with equipment, and remove delicate and breakable articles from the immediate work area.
The following are precautions that should be reviewed by all persons who will be involved in the cleaning
activity.
•There are no user serviceable components in the COBRA VI; only trained technicians should attempt
to make internal repairs on this equipment. Call Air-Care 800-322-9919 for tech Support.
•Never use the COBRA-VI in a wet environment.
•Always turn off the main power switch/Breaker on the COBRA-VI panel when the brush and cable
are laid down to prevent injury if the START switch is accidentally activated.
•Be sure all power cords and electrical extensions are rated to meet or exceed the original Air-Care
power cord spec’s, and inspect AC power plugs to be sure the ground pin is in place.
•Never connect power to Air-Care equipment unless all covers and safety shields are in place.
Mechanical and electrical parts could be activated and cause injury.
•Never allow anyone but a properly trained technician to use Air-Care equipment or cleaning products.
•All Air-Care equipment is designed for US standard 115 volt, 60 Hz AC. Most Air-Care equipment
can be special ordered to meet other worldwide standards for a reasonable price and delivery schedule.
Always check the specifications on the Equipment before connecting electrical power to Air-Care
equipment.
•Keep the cable clear of breakable objects as it can flip and twist during higher torque applications.
•Turn off main power switch when removing or replacing the Flex-E-Bristle Brush.
If you have questions about the safe use of any Air-Care product, call 702-454-5515
Equipment Specifications and part numbers are subject to and change without notice.

3
Operating Instructions
Setup and Testing
The COBRA-VI is designed for use with a portable negative air machine to thoroughly clean round,
square and rectangular ducts made of all materials. Caution must be used when cleaning soft surface
ducts such as older, deteriorated duct-board or flexible ducts and metal ducts with internal insulation.
1. Place the Cobra VI drive unit on the floor or other stable surface near the ducts to be cleaned.
2. The Cobra VI always starts in the Lowest of its 4 speeds. If a higher speed is required use the button
on the Remote “+” or the rocker switch on the Control Panel to step the speed up or down.
3. Connect a power cord to the pigtail on of the rear of Power unit and to a standard 115 volt grounded
AC outlet.
4. Attach the flexible shaft to the motor unit by first aligning the square end of the shaft with the square
hole in the drive unit, then screwing the black disconnect nut onto the 2” diameter, threaded end of the
coupler. This nut should be snug, but NOT excessively tight.
5. Hold the outer cable housing near the Flex-E-Bristle Brush. Hold the brush where it will not hit you or
other objects when it begins to rotate. It should only be started AFTER it is inside an air duct.
6. Turn on the power breaker/switch.
7. Using caution, Press the “START” button on the Remote or the rocker switch on the Control panel.
The brush will be started in its LOWEST speed. If a new brush cable is still rolled up tighter than a
30” diameter, it may not turn due to internal friction. Open up the size of the coiled cable and try to
run it again.
8. Once the brush is turning, test other functions by increasing the speed slowly to maximum by pressing
the Speed Increase button “+” 3 times, then press the Speed Reduce Button “-“Be careful to not let
the brush hit anything breakable. The direction of rotation can be changed by pressing the “Change
Directions” switch. The brush will slow to a stop then start to turn in the opposite direction at the
lowest speed. Now Press “STOP” before going on to test the Remote Controls.
9. The handheld remote can now be tested for the same functions to START, STOP, Change Directions,
Increase Speed and Decrease Speed. Use caution when changing the direction of rotation. The back
torque in the cable may flip the coils of the cable with the possibility of hitting breakable objects in
the immediate area. To reduce this condition, The Brush Speed will always return to Speed #1 when
the Rotational Direction is changed. You may then increase it with the speed switch.
10. NOTE: When the Change Direction switch is activated, the Lights on the Panel switches will flash
while the Brush is slowing to a stop and restarting in the SLOWEST speed.
11. The brush MUST BE STOPPED BEFORE INSERTING IT INTO AN AIR DUCT.
12. DO NOT CRIMP THE CABLE WHEN STORING OR TRANSPORTING. THIS MAY BEND THE
STRANDS IN THE CABLE CAUSING PREMATURE FATIGUE AND FAILURE.

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.

5
COBRA VI Components

6
COBRA VI Standard Accessories
Optional Accessories

7
Parts List
Equipment Specifications and part numbers are subject to change without notice.
Ref #
Description
Included
Part #
1
COBRA VI, Complete with Standard Accessories 120/220
--
FG0194
2
COBRA VI, Motor & Control Box with Remote for 120 V and
220V
YES
SACOB0062
3
Brush and Cable, COBRA VI Std 3/8” Core x 35’ Cable.
WITHOUT brush, order 18” Flex-E-Bristle Brush (Ref#7)
YES
SACOB0015
4
Internal Parts for Motor and control panel
YES
Call
7
18” Flex-E-Bristle Brush, Standard Black Bristles for 4” to 18”
Ducts
YES
SACOB0011
8
Brush Hub. The Hub for the Cobra VI brush can be fitted with
other length and diameter bristles for special applications.
Optional
SACOB0005
9
18” Replacement Bristles, Standard Bristles, 18” x .021 diameter
(5 changes)
Optional
BA0006
10
Handle, Coil’n’Carry
YES
FG0102
11
Power Cord, 3 ft Pigtail
YES
EC0186
13
Cable Housing 5/8” OD for 3/8” Core
Optional
COM0571
15
Cable Repair Kit, for Standard 3/8” Cable, Brush End
Optional
SACOB0020
17
Cable Repair Kit, for Standard 3/8” Cable, Machine End
Optional
SACOB0018
19
Allen Wrench, for Brush to Cable Set Screw, 1/8” --
Optional
BC0005
20
Disconnect Nut (For all Cobra Cables)
Optional
ACC0151
24
COBRA VI Instructions, This Document (Online at the Air-Care
Website). P/N MM0206
YES
SAO0009
25
Control Panel Assembly with all parts
YES
SACOB0058
26
Motor, ½ HP 90 VDC, 1750 RPM
YES
M0005

8
Troubleshooting Guide
Prior to troubleshooting, check the following.
1. Be sure power cord is plugged in, AND the Breaker/switch is in the “ON” with the Light Lit. If there
is no light, try another outlet.
2. When testing the motor use the remote switch to turn the motor on for the first test.
3. For testing leave the Speed at the Lowest Setting (1).
4. It is SAFER to run the COBRA VI with the cable end DISCONNECTED. You will be told when to
attach it.
Problem
Check
IF
Action
Motor does not
run.
1. Did you follow the first 5
steps at the top of this page?
Yes
No
Be sure the Brush and Cable have been
disconnected and Go to #2
Follow the 5 instructions above then go to
#2.
Motor does not
run
2. Does the RED LED on the
remote flash when the buttons
are pushed?
Yes
No
Go to #3
The Remote may have a dead battery,
Replace the 2- “AA” batteries and repeat
the test. If it still does not light, go to #4
Motor does not
run
3. Turn the Motor “ON” with the
Remote START button then
Press “Change Rotation”. Does
the motor run in BOTH
directions?
Yes
No
The motor is good, but the remote is failing,
Call Air Care.
Go to #4
Motor Does not
run
4. Use the Panel START switch
and Change Direction Switch,
and count to 4 to give it time to
respond. Did Motor Run?
Yes
No
The Remote appears to be failing, Call Air
Care. 702-454-5515
Contact Air-Care for advanced Diagnostics.
702-454-5515
Brush Speed
does not
change
5. Press the PANEL “START”
switch. Does the Motor start to
run at any speed?
Yes
No
Go to #7
If the “Speed Indicator” lights on the Panel
change? Contact Air-Care Tech Support.
Brush Speed
does not
change
6. Does the Motor Start Light
turn on after Pressing
“START”?
Yes
No
Go to #7
Contact Air-Care Tech Support
Brush Speed
does not
change
7. Press the Speed Increase
button (+) and the Speed
Decrease button, (-) several
times. Does the Light Change
on the Panel Speed Indicator?
Yes
No
Attach the Cable and brush and verify that
the Brush Speed changes with the Button.
Go to #8
Brush Speed
does not
change
8. Does the Brush Speed
change when the Speed is
increased and decreased.
Yes
No
Repeat Test with the Remote.
Contact Air Care Tech Support.
Motor Runs
until Cable and
Brush Installed
9. Is the Cable coiled tightly or
is this brand new cable?
Yes
No
When being used, the cable must be coiled
loosely, about 24” diameter or larger coils. A
new cable must “break in” a few hours.
Go to #10
Motor Runs
until Cable and
Brush Installed
10. Is the Large 36” brush
attached?
Yes
No
The 36” brush should only be run at speeds
of Lowest and Med Slow (1 and 2)
Contact Air-Care Tech Support
Final Test Run
11. Did the COBRA VI run
properly in all modes?
Yes
No
Problem solved. A power surge may have
tripped the breaker.
Look for the new symptom in the left column
or call Air-Care Tech Support. 702-454-
5515

9
Cobra Cable Repair Procedure
1. If one or more wires break at the end of a Cobra Cable, it should be repaired to
prevent the strands from unraveling inside the housing and damaging the cable
beyond repair.
2. The brush end is the most likely to be damaged during use, but the machine end can
also be repaired in the same manner with the proper repair kit.
3. Locate the damaged area, and grind off at least 2 inches beyond the visible damage.
4. DO NOT USE A HACK SAW; it will cause the strands to separate. Use an abrasive
chop saw or a grinder to cut the cable to the proper length. Grind off any burrs so the
cable will fit into the repair end.
5. The housing must be cut 2” shorter than the core.
6. Install the repair end on the 3/8” dia. cable core. Be sure to reinstall the washer onto
the end of the cable before the replacement end.
7. Tighten the collar set screws alternately a little at a time until the collar is holding the
split end on the end of the cable securely.
8. The cable is now ready for testing. It should perform like new.
If you have any questions, call Air-Care at 800-322-9919.
Specifications
Power Requirements: 120/220 VAC, 50/60 Hz 7.0 Amps
Size: 14.4” W x 19.5” D x 14” H
Weight: 28-lbs. Motor case, 7 lbs. Cable and Brush
Motor: 90-Volt High Torque DC Motor
Controller: 90 Volt DC controller with speed and load correction.
Cable sizes: Standard: 3/8” core, 5/8” O.D. Nylon housing, 35 feet long.
Optional: 50-foot cable available
Brushes: Standard: 4”-18” self-adjusting Flexible Brush, Detachable
Optional 14”-36” Self-Adjusting Flex-E-Bristle Brush
Power Cord: Pigtail with grounded plug
Specifications subject to change without notice.

10
Glossary & Acronyms
1. ACGIH—American Conference of Government Industrial Hygienists
2. ASHRAE—American Society of Heating, Refrigerating, and Air Conditioning Engineers
3. Air Handler/ AHU—The Furnace or air conditioner that heats, cools and moves the air.
4. Antimicrobial—Agent that kills Bacteria, Molds and viruses. See “Sanitizer
5. Arrestance – An ASHRAE standard procedure to measure air filter efficiency (52.1)
6. Bioaerosols— Molds and bacteria that are found floating in the air.
7. Biological Contaminants— Bacterial, Mold/Fungus, viruses and their waste, byproducts and decomposition
materials that can be inhaled and cause many types of health effects.
8. Building Related Illness—Diagnosable illness whose symptoms can be identified and whose cause can be
directly attributed to airborne building pollutants (e.g., Legionnaire’s disease, and hypersensitivity
pneumonitis).
9. CFM—Cubic Feet per Minute, a measure of how much air is flowing in an air system.
10. CO—Carbon Monoxide, an odorless, toxic gas produced during combustion.
11. CO2—Carbon Dioxide an odorless, non-toxic gas produced during combustion and exhaled by people.
12. Ceiling Plenum – The area above a suspended ceiling that may be used as a return path to the Air Handler.
13. Conditioned Air – The air that has been filtered, heated or cooled by the air handler.
14. Dampers – Flaps or valves in the air duct that control the amount of airflow in the duct.
15. Diffusers & Grilles & Registers – The covers at the end of supply and return ducts that control the amount and
direction of the air-conditioned air entering or leaving a room.
16. Electrostatic Filter – A High Efficiency (95% Arrestance) Air filter that generate static electricity from the air
movement through the air handler and captures dust from the air while the clean air move freely through it.
17. EPA—Environmental Protection Agency
18. Duct – A metal, plastic or fiberglass tube that transports air to and from the Air Handler. They can be round,
square or rectangular.
19. Duct Board – Compressed fiberglass material used to make air ducts, particularly in the southern U.S.
20. Fiberglass Filter – A disposable, very low efficiency filter (approx. 10% arrestance).
21. Flex duct – Plastic fabric duct with a spiral wire support. It is used extensively in the Western U.S.
22. HEPA—High Efficiency Particulate Air
23. HVAC—Heating, ventilation and air-conditioning
24. IAQ—Indoor Air Quality
25. MSDS—Material Safety Data Sheet
26. Make-up Air – Fresh “outside” air that is brought into a Commercial building.
27. NADCA-- National Air Duct Cleaners Association
28. NAFA – National Air Filter Association
29. NIOSH—National Institute for Occupational Safety and Health
30. Negative building pressure – A condition that allows air to flow into a building when a door is opened.
31. NSC -- Nevada Safety Counsel
32. NSF International – An independent testing laboratory for Air filters
33. OSHA—Occupational Safety and Health Administration
34. Positive building Pressure – A condition when air will come out of a building when a door is opened.
35. Re-entrainment – The flow of dust and debris removed from an air system back into the same building
36. Return/Return Duct
37. Sanitizer – A material designed to kill mold, bacteria, and viruses.
38. Sick Building Syndrome – A group of symptoms such as headache and watery eyes that disappear after the
sufferer leaves the building for a few hours.
39. Supply/ Supply Duct—The opening and related ductwork that delivers conditioned air to a room.
40. VAV—Variable air volume system – A system that varies the amount of flow of air to regulate temperature.
41. VOC’s—See “Volatile Organic Compounds”
42. Volatile Organic Compounds (VOC’s)—Chemicals that release gasses into the air such as solvents.

11
LIMITED WARRANTY
COBRA VI POWER BRUSH SYSTEM
Air-Care warrants this product to be free from defects in materials and workmanship to the
original purchaser for a period of two (2) years from the date of purchase. Components listed
below are excluded from this two year period and are covered for periods described below:
Motor 1 Year
Circuit Board & Remote 1 Year
Cable Assembly 90 Days
Brush Assembly No Warranty
Warranty covers both parts and labor (labor is to be performed at Air-Care’s facility located at
3868 E. Post Road, Las Vegas, Nevada).
Warranty is extended to the original purchaser and is not transferrable.
This warranty does not extend to any damage to a product caused by or attributable to freight
damage, abuse, misuse, improper or abnormal usage. Warranty is also void if the product has
been modified or altered in any way.
The purchaser is responsible for the cost of shipping the equipment to Air-Care’s facility for
evaluation. If found to be defective and covered by the terms of this warranty, Air-Care will pay
FedEx ground shipping charges on the repaired or replaced item back to the purchaser’s location.
Any additional expedited service charges for quicker shipping shall be born by the purchaser. If
the product or component is not found to be a warranty issue, the purchaser will be responsible
for return shipping charges.
Air-Care is not responsible or liable for indirect, special, or consequential damages arising out of
or in connection with the use of performance of the product; damages with respect to any
economic loss, loss of property, loss of revenues or profits, loss of use, or other incidental or
consequential damages of whatsoever nature.
The warranty extended hereunder is in lieu of any and all other warranties, and any implied
warranties of any type.
This warranty gives you specific rights. These rights and others vary from state to state.
Division of D.P.L. Enterprises Inc.
3868 East Post Road, Las Vegas, Nevada 89120, [phone], FAX [phone]
Website: www.air-care.com; E-mail: [e-mail]