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INSTALLATION OPTIONS & EFFECT OF
WATER CHARACTERISTICS
Your Steam Humidifier can be installed to operate on 120 volts, 208 volts
or 240 volts using 11.5 or 16.0 amps. The higher the voltage and amperage
the higher the potential output.
Amperage
Voltage
Maximum steam capacity (gal/day)
120V
11.5
208V
240V
120V
16.0
208V
240V
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. The water supply should have a
conductivity between 125 and 1,250 uS/cm which correlates loosely to a
hardness between 3 and 36 grains/gallon. The humidifier will make steam
when plumbed to low-conductivity water but will take longer to reach
nominal capacity. There are benefits and trade-offs to consider when both
hard and softened water are available.
Hard water: The benefit of hard water is less frequent draining and filling
than with soft water, which results in better energy and water efficiency
and more consistent steam output. However, canister replacement could
be more frequent with hard water because mineral deposits coat the
electrodes. The harder the water, the more frequent the need for a new
canister.
Softened water: The benefit of softened water is typically longer
canister life than with hard water because softened water does not coat
the electrodes nearly as much as hard water. However, softened water
ions stay in solution to much higher concentrations than hard water ions.
This requires more frequent draining and filling which results in lower
efficiency, higher water consumption and less consistent steam output.
Two canisters are available, the Model 8043RP and Model 8043LCRP,
optimized for different water types. Contact your HVAC dealer for canister
selection.
11.5
20.5
23.3
16.0
30.0
34.6
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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 trying
for 168 hours, 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, but 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 needs to 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 four minutes to allow
all water to drain from the canister.
Any time power is disconnected or 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.
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. The "Drain" light will remain on
until there is a humidity call or 24 hours has elapsed. The humidifier will
resume normal operation when a call for humidity is made.
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