Installation guide
DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual • Page 55
5.  Verify that the humidifier tank is securely installed and level 
before filling with water (see the operating weights table in this 
manual).
6.  Verify that the humidifier tank is level front to back and side to 
side after it is full of water. 
7.  Refer to the following sections in the Vapor-logic4 Installation 
and Operation Manual: 
• Operation section
• Start-up checklist (it is critical that the installer follow this 
checklist)
8.  During start-up, do not leave the humidifier unattended. 
9.  Monitor humidifier operation through multiple fill cycles. The 
humidifier operating status appears on the keypad/display.
10. On standard water units, water skims from the humidifier 
after every fill cycle. Adjust the amount of skim by increasing 
or decreasing the skim time (see the Vapor-logic4 Installation 
and Operation Manual). However, at start-up, DRI-STEEM 
recommends initially running the humidifier with the factory 
default setting for skim time. (See "Adjusting skim duration" in 
the maintenance section of this manual, and see the 
Vapor-logic4 Setup menu.)
Start-up procedure
Operation










