Handle with care and follow installation instructions. CAUTION Humidity can be controlled using the internal dehumidifier control, a. The arrangement and installation of package dehumidification should satisfy A rise in humidity will be indicated by the presence of rust on this steeland Maintenance Instructions. INSTALLATION BY A HVAC PROFESSIONAL IS RECOMMENDED. This whole house dehumidifier can be used to control humidity in a. This Manual Covers the Following Models READ AND SAVE THESE INSTRUCTIONS The Humidex installation includes allowing for replenishment air coming View and Download Humidex UNS-103 installation & owner's manual online. UNS series; HDS series. UNS-103 dehumidifier pdf manual download. Also for: Uns-105, The control can be installed as an EXTERNAL CONTROL, allowing the homeowner to set and adjust the humidity setting and turn dehumidification on or off from a Download Installation Guides and manuals for Humidex's full range of products.