Specifications
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Operation
If an item in the Start-up checklist below does not apply to your
system, skip to the next item and continue the process.
☐ Read this manual and all other information that was provided
with your humidifier.
☐ Verify that all field wiring is done according to the instructions
in this manual and in the humidifier wiring diagram.
☐ Confirm that the input signal is consistent with the Vapor-
logic4 controller's expected input signal. Input signals are listed
in the Vapor-logic4 Setup menu. See “Installation Step 2: Setup”
in the Vapor-logic4 Installation and Operation Manual.
☐ Confirm that proper grounding and an approved earth ground
are provided.
☐ Turn on the water supply, and confirm that the drain valve is
closed.
☐ Turn on power to the humidifier, and confirm the Main menu
is displayed on the keypad/display. The display may take several
seconds to appear as the controller powers up.
☐ Confirm in the Main Menu that the mode is “Auto” and that
tank status is “Filling.”
☐ When “Filling” appears in main menu, confirm that the tank is
filling with water.
☐ In the Status screen, confirm that the Duct Airflow Switch is
closed.
☐ In the Status screen, confirm that the high limit humidistat
input is closed or the high limit transmitter is connected.
☐ Make sure the tank has filled with water. See the “Damage from
dry startup” Caution on Page 33.
☐ With sufficient water in the tank, the airflow switch closed, the
high limit closed, and the humidifier getting a call for humidity,
verify that the heater outputs are activated.
☐ Check the amp draw of the heaters. Refer to the humidifier
wiring diagram for the proper rating.
☐ If you experience difficulties, have the keypad/display
information available along with the serial number and
humidifier Model, and call DRI-STEEM Technical Support at
800-328-4447.
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