Coolerado Installation
Page 59 of 63
Appendix 18: HMX Cleaning
1. Mineral Buildup
a. Turn off Power to unit, will be working with water around motor and high voltage wiring.
b. Remove filter access door.
c. If needed remove outside air inlet plenum for access to front face by removing screws on the C60 model
or clips on the M50 model.
Figure 1 Figure 2
d. Remove filters.
If the unit has had a buildup of minerals on the face it should be cleaned. When a unit has been used with
sodium or potassium based water softener easily dissolved salts can collect on the inlet of the HMX’s and can be
rinsed off. If the unit has been operated without a water softener you may need to use a spray bottle to apply
non-diluted white or distilled vinegar to all areas where there is a buildup of white salts to loosen the calcium
deposits. In low total dissolved solids in the water areas no cleaning will be necessary.
Header
Working Air
Product
Air
Product
Air
Soap
Bottle
Figure 3
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