14
Non-INTAC
®
Startup Procedure
Start Up Procedure
______ 1. With the power "off", set the switch on the control board to the "Standby" position (the control board is
located within the humidifier control panel door).
______ 2. Make sure the manual drain valve lever (located on the front of the drain valve) is in the “closed”
position.
______ 3. Turn the controlling humidistat to the lowest setting (no call for humidity).
______ 4. Turn the electric power “on” to the humidifier. The “Power” LED light on the controller should be
illuminated.
______ 5. Set the switch on the control board to the "Normal" position.
______ 6. Open the water supply on/off control valve (by others) and allow the humidifier evaporating chamber to
fill to the proper level.
______ 7. After the humidifier is full of water, the "Water Level Full" LED will illuminate. Turn the humidistat up to
call for humidifier demand.
______ 8. Make sure all the optional safety switches are satisfied (airflow proving switch, high-limit humidistat,
etc.).
______ 9. The heater(s) should energize on a call from the humidistat.
______ 10. Verify the low water safety circuit by closing the water supply and opening the manual drain lever on
the drain valve. As the humidifier tank is draining, the "Water Level Full" and "Heater Energized"
lights should go out and you should hear the contactor drop out when the low water level is reached;
this indicates the low water safety circuit is operational. This should only take a couple of minutes
maximum.
______ 11. Close the drain valve and allow the humidifier to fill to the proper level.
______ 12. Check operation of optional field-installed safety switches (airflow proving switch, high-limit humidistat,
etc.) to make sure that they turn the power off to the control circuit power. The safety switches should
shut-off the humidifier heaters whenever one or more of the optional safety switches create an “open
circuit”.
______ 13. Check heater amperage draw by testing and recording voltage and amperage in each phase.
Readings should match the factory heater nameplate.
Amps A:_______ Amps B:______ Amps C:______
______ 14. Inspect installation for leaks by operating humidifier at a full rolling boil. This may take up to 15 minutes
from a cold start. Any leaks should be sealed. Just tightening a pressure clamp will not work if the
gasket is not properly positioned between the sealing surfaces. If necessary, remove the cover, reseat
gasket and replace the cover. A small amount of adhesive (super glue, gorilla glue, spray adhesive,
etc.) to hold the gasket in place while repositioning the cover will aid in this process.
______ 15. After the unit is producing steam, check and retighten all hose clamp connections in the system and
make sure they are torqued to 35-40 in-lbs. There are 6 clamps total inside the cabinet.
Signature:__________________________ Date:_________
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