15
INTAC
®
Startup Procedure
Signature:__________________________ Date:_________
Startup Procedure
_____ 1.
Prime water seal by removing overflow hose and adding water. Replace and tighten hose clamp.
_____ 2.
Make sure the electric power to the humidifier is shut off.
_____ 3.
Close the humidifier manual drain ball valve (located on the right side of the humidifier evaporating
chamber).
_____ 4.
Open the water supply on/off isolation valve provided by others and allow the humidifier evaporating
chamber to fill to the proper level.
_____ 5.
Turn the electric power “on” to the humidifier. The display on the INTAC
®
controller should illuminate
“Normal Operation”.
_____ 6.
Set menu 101 “RH Setpoint” to the lowest setting (no call for humidity). If 100 menu shows “No Parameters
Available” the procedure must be done through the Building Management System.
_____ 7.
After the humidifier is full of water, menu 004 will read “FULL”.
_____ 8.
Verify the low water safety switch by closing the water supply, opening the drain valve and verifying that the
low voltage pilot relay within the control cabinet de
-
energizes when the water level is dropped below the
low water shut off switch (you can hear the relay switch “out”). Menu 004 should now read “LOW”; this
indicates that the low water safety circuit is operational. The pilot relay opening would shut down the
heating element contactor when the contactor is energized.
_____ 9.
Close the drain valve, open the water supply valve, and allow the humidifier to fill to the proper level.
_____ 10.
Make sure all the optional safety switches are satisfied (airflow proving switch, high
-
limit humidistat, etc.).
_____ 11.
Turn menu 101 “RH Setpoint” up to a call for humidity. If a Building Automation System is controlling the
humidifier have it call for 100% demand. For Building Automation System verify 0% and 100% demands
are displayed as 0% and 100% on the INTAC
®
display and adjust the input high and low values to match
accordingly.
_____ 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 low voltage pilot relay. The safety switches should shut off
the contactor when 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 and reseat the
gasket. 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 two clamps on the fill line, two on the drain line, and two
on the steam connections. There may be more located on the steam tube assembly (if used).
