Specifications

Page 6 • DRI-STEEM Humidifier De-scaling Solution and Neutralizer Usage Instructions
De-scaling process for Vapormist, CRUV, Humidi-tech and VT
humidifiers
1. Review MSDS sheet for safe handling and proper use of
Humidifier De-scaling Solution and Humidifier De-scaling
Neutralizer, in addition to instructions provided in this document.
2. Turn off power to the humidifier at the main disconnect.
3. Remove the shroud from the humidifier (VT and Vapormist only).
4. Allow the humidifier to cool to room temperature.
5. Drain the humidifier using either manual override switch on drain
valve or ball valve.
6. After the humidifier has drained, remove the tank from the
humidifier. Refer to the humidifier IOM for questions.
7. Place the tank on a level surface and in an isolated location
(preferably near a drain).
8. CAUTION! Remove probe assembly from humidifier before
adding Humidifier De-scaling Solution to avoid potential damage.
9. Determine the amount of De-Scaling Solution to be used. See the
table on the last page of this document for amount.
10. Fill the humidifier with water halfway to the overflow port.
11. Add the pre-determined amount of Humidifier De-scaling
Solution to the half-full tank.
12. After the Humidifier De-Scaling Solution is added, finish filling
the humidifier with water manually (e.g., using a bucket) to 1"
(25 mm) below the overflow port.
CAUTION! Be careful to avoid splashing solution on skin or in
eyes while adding the remaining water. Use proper safety gear.
13. Use a portable mixer or similar device to agitate and mix the
solution.
14. Place the cover on the humidifier slightly ajar to allow the solution
to be vented.
15. Maintain a solution pH between 2 and 4 by adding additional
De-Scaling Solution as needed. Use proper safety gear.
16. De-scaling duration will depend on several factors including:
quantity of scale, type of scale, and the pH of the solution. The
de-scaling process can last up to 8 hours.
17. Allow the solution to dissolve scale while checking on the progress
every 2 hours up to a maximum of 8 hours. For increased
performance, continue agitation throughout the de-scaling process
and maintain a pH close to 2.
U s a g e i n s t r u c t i o n s