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SECTION IV OPERATING INSTRUCTIONS
Start-up Instructions
1. Check that the humidifier is properly mounted and
level.
2. Check that the water fill and drain are properly
connected.
3. Check that the correct voltage and amperage
services are supplied.
4. Check all controls are wired properly.
5. Check that the steam distributor is properly installed
and that the steam hose has been properly routed
without any kinks or flat spots.
6. With power off, double-check all electrical
connections and plumbing connections to insure that
they did not loosen during shipment.
7. With the "on-off-drain" switch in the "off” position,
and the control and high limit (ducted versions only)
humidistats at their lowest settings, turn on the main
disconnect. The contractor should remain
deenergized and the power light should remain "off”.
Place the “on-off-drain" switch in the "on" position
and the power light should illuminate.
8. Turn the control and high limit (ducted versions only)
humidistats up to there highest setting. The
contractor should pull in.
9. After approximately a twenty second delay, the fill
valve should open and water begins to fill the
cylinder to the preset amp level or cylinder full
condition, depending on the incoming water supply.
When starting up the unit, it is best to put an amp
clamp on the power leg that passes through the
torroid transformer. Insure that the humidifier fills to
"cylinder full" (approximately 1.5” from the top of the
cylinder), or that the amperage reaches the data
plate maximum and the fill valve closes.
10. All units are equipped with a drain-tempering feature
which mixes cold fill water with the hot drain water to
protect drain piping. Depending on your fill water
pressure, some adjustment of the fill metering valve
may be necessary to insure drain water of less than
140 degrees F (See Figure 9). To deactivate,
remove diode from socket CRI8 from circuit board
(See Figure 12).
11. Reset control and high limit humidistats to there
desired settings. Typical control humidistat settings
are 30-40% and limit humidistat settings are 65-
70%.
NOTE
The capacity of the humidifier can be adjusted
between 500% and 100% of the maximum level
by adjusting the capacity adjustment
potentiometer (labeled R39) on the main circui
t
board. All blower versions are set from the
factory to produce 4 lbs/hr. If the psychrometric
conditions permit, the 6000—2 may be
increased to 8 lbs/hr by adjusting R39 from 50%
to 100% capacity.
CAUTION!
Inadequate airflow may allow humidity to collect in
areas causing condensation.
NOTE
If upon initial start-up of this humidifier the
cylinder is slow in heating and/or the service
light continues to come on, drain the tank to 1/4
full. Turn off power at breaker and crumble 1/2
of one tablet (Alka-Seltzer) from the envelope
tagged EST-1583 included with unit into the
grey fill tee. Change the middle blue dial on the
left side of the circuit board, R18, from 90% to
87%. Then turn the breaker on and run the unit.
If you have had to use these this step on a
230V unit (6000-2,4), it is advisable that you
order a GT-176-1 replacement cylinder rathe
r
than the standard replacement cylinder in the
future so this procedure will not need to be
repeated. Upon receipt of the GT-176-1
cylinder, adjust the dial, R18, on the circui
t
board back to 90%.
Figure 9
10