INSTALLATION OPTIONS AND EFFECT OF
WATER CHARACTERISTICS
Your steam humidifier can be powered with a 120, 208 or 240 volt circuit and
operated at either 11.5 or 16.0 amps. The higher the voltage and amperage the
higher the potential output. The operating voltage and amperage are set by
your installing contractor to meet the humidification needs of your home.
Amperage Voltage Maximum steam capacity (gal/day)
11.5
120V 11.5
208V 20.5
240V 23.3
16.0
120V 16.0
208V 30.0
240V 34.6
It may take several days for the humidifier to reach rated capacity depending
on the input voltage and the electrical conductivity of the water. 120
volt systems take longer to reach rated capacity than 240 volt systems. The
humidifier should always be plumbed to cold water but the water can be
softened or unsoftened. “Hard” water, which has a high mineral content, and
softened water generally have higher conductivity than naturally soft water.
Systems plumbed to higher conductivity water will reach capacity sooner
than systems plumbed to low conductivity water. As the humidifier operates,
minerals build up in the canister, which increases the conductivity of the water.
With a new canister, allowing the humidifier to operate continuously (along
with the HVAC system blower) will allow it to reach rated capacity in the
shortest amount of time.
Canister life is highly dependent on water quality. Canisters in systems plumbed
to water with high concentrations of suspended and dissolved solids will not
last as long as canisters operating on water with less minerals.
Two canisters are available, the Model 80 and Model 80LC, optimized for
different water types. Contact your HVAC dealer for canister selection.
NOTE: Amperage, voltage and plumbing changes should be made by a heating
and air conditioning contractor.
OPERATING MODES
When the humidifier is powered and turned on, the “On/Off” light is illuminated
green.
When the canister is being filled or replenished with water, the “Fill” light
illuminates green.
When the canister is being drained, the “Drain” light illuminates green.
During initial start up with a new canister, the humidifier may run through a
series of fill/drain cycles until the conductivity of the water is in a range that
allows normal operation. During this time, the “Steam” light illuminates green.
If the humidifier cannot produce steam at the rated level after 168 hours of
operation, the “Steam” light illuminates yellow. The humidifier continues to
operate in this state until the rated output is reached.
The conductivity of naturally soft water, hard water, and softened water
changes as the water heats up, and the internal controller adjusts the water
level to maintain a nominal current between the electrodes. Over the life of
the canister, minerals that build up on the electrodes will reduce their effective
surface area and affect the resistance between them. The operating water level
will increase with use until it reaches the high water level probe. At that point,
the “Service” light will flash red indicating that the canister should be replaced.
The humidifier will continue to operate but with reduced output.
When the humidifier begins a drain cycle, the fill valve opens to introduce cold
water into the canister. This is done to prevent hot water from entering the
drain. The drain valve remains open for 4 minutes to allow all water to drain
from the canister.
Any time power is disconnected or the humidifier is turned off, the internal
timer for start-up and drain cycles is reset.
If the humidifier has operated 168 hours without a drain cycle, the drain valve
will open and drain the canister. Normal operation will continue.
If the humidifier is operating and a power failure occurs, once power is restored,
the “On/Off” light will flash green for one minute, then the humidifier will turn on.
If the humidifier has excessive drain cycles or cannot reach desired humidity,
contact your heating and air conditioning dealer for service.
END OF SEASON/PERIOD OF INACTIVITY SHUT-DOWN
If the humidifier does not receive a call to operate in 72 hours, the humidifier
controller drains the canister, and the drain valve will remain open for 30
minutes. The drain light will remain on until there is a humidity call or 24 hours
have elapsed. The humidifier will resume normal operation when a call for
humidity is made.
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