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SPECIAL DUCT CLEANING PROCEDURES
I. Mobile Home Duct Cleaning:
The different type of duct configuration in most mobile homes requires a different cleaning
procedure.
The duct system in a mobile home is constructed in an “H” shaped pattern, with the legs of
the “H” running along each side of the mobile home.
1. Start the cleaning process at the end of one leg of the duct system. Remove the vent
cover from the end vent and close all of the other vents on this leg.
2. Turn the HVAC system fan OFF.
3. Turn on the LED light located inside the vacuum box.
4. Place the vacuum box over the vent opening.
5. Connect your vacuum hose to the vacuum box. Turn on your vacuum.
6. With the air valve closed, connect the cleaning air hose to your compressor and push
the white Air Blaster Ball and hose through the vacuum box. Twist the hose as you push
it into the duct and continue pushing all the way to the end of the leg. Once you
reach the end turn the air valve on.
(An additional hose section may be required.)
7. With the combined air pressure from the white Air Blaster Ball knocking loose the dust
and debris, and the airflow from your vacuum hose, you should now see the dust and
debris flowing into the vacuum box and removed through your vacuum hose.
8. Slowly pull the cleaning air hose back out of the duct. Pull it out some, push it back in a
little and twist the hose as you pull it out some more, and repeat the process to clean
the duct.
9. When the white Air Blaster Ball reaches the vacuum box, close the air valve.
10. Disconnect the vacuum hose from the vacuum box. Remove the vacuum box from
the duct opening.
11. Insert the vacuum hose down into the duct. Twist the hose as needed to move it
around inside the duct and push it to the far end of the leg. Pull it out some, push it
back in a little and twist the hose as you pull it out some more and repeat the process
to clean the duct.
12. Once the end of the vacuum hose is out of the duct, use the vacuum hose to clean
up the area around the duct opening.
13. Replace the vent cover and move to the other side of the mobile home. Remove the
vent cover from the vent farthest from the HVAC system and repeat the process for
the second leg.
14. Remove the filter from the HVAC system.
15. Remove the HVAC inspection cover to access the controls & fan.
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