SKG4-N Gas Fired Humidifier
Start-up Check List
SKG4-N Start-up Check List - 180807
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Start-Up
Start-up
1. Proceed to start-up the humidifier, as follows:
a) With the humidifier front access open, ensure that the manual drain valve is
closed.
b) Turn on the humidifier by pressing and holding the Power button
for 3
seconds. Verify that the controller Status Display LED is blue.
c) Verify that there is a humidity demand displayed on the LCD screen of the
humidifier.
d) Ensure that the water supply valve connected to the humidifier is turned on
and that water is flowing directly to the humidifier water supply inlet. Ensure
that the water shut off valve is turned off.
e) Verify the water level as water is filling the evaporation chamber by using the
control panel to access the
WaterLevel
setting located in the
Physical IO
sub-
menu of the
General
menu. Ensure that there are no water leaks along the
water line.
f) If there is a humidity demand, the burner combustion blower(s) will start, and
after approximately 90 seconds the combustion will start. From a cold water
start, the humidifier will require 5 to 10 minutes to produce steam.
The humidifier controller will indicate the water temperature and flue gas
temperature.
g) During normal operation while steam is produced, the water temperature
must be 212
˚F (100˚C) and the flue gas temperature must be around 248 to
392
˚F (120 to 200˚C). The water level percentage must not indicate less than
95%.
h) Once the evaporation chamber has been filled, observe for water, steam and
flue gas leaks during several minutes of operation.
Combustion Field
Adjustment
2. Please refer to the
SKG4 Combustion Field Adjustment Instructions
enclosed in
this package to perform this operation.
Safety Test
3. Check the location of the Airflow switch in the system and its operation by
stopping the fan. With no air movement, the humidifier should automatically stop.
Drain and Reset
4. Turn off the humidifier by pressing and holding the Power
button for 3
seconds.
5. Conduct a drain cycle by pressing and holding the Drain button
for 3
seconds. Ensure that the evaporation chamber has been emptied.
6. Once the drain cycle is complete, restart the humidifier by pressing and holding
the Power
button for 3 seconds.
7. Reset the Airflow switch if needed.
End
8. The humidifier is now ready for normal operation.
Controls
14. Ensure that the Interlock is properly connected to the printed circuit board. If the
Interlock is not used, verify that a jumper is connected between terminals TB3
1&4.
15. If a room or duct humidistat is used, verify that it is correctly installed and
properly connected to the humidifier. Verify that the setpoints are properly
adjusted.
16. Turn the power on using the circuit breaker.
17. Confirm the control set-up of the humidifier and verify that the setpoints are
properly adjusted.
