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AUTOFLO HUMIDIFIER
Z100 ASSEMBLY
INSTALLATION INSTRUCTIONS & OWNER'S MANUAL
Z100 REPLACEMENT INSTRUCTIONS
SUPPLEMENT TO THE AUTOFLO ELECTRONIC STEAM POWER HUMIDIFIERS
MODEL # S2000 AND S2020
APPLICATION NOTE
AN 131
The AUTOFLO steam humidifier now comes equipped with a factory installed Z100, which acts as a
sacrificial metal. Put simply, minerals in the water will attack and cling to the . The minerals
will not attack the other components inside the humidifier as long as the s present and active.
This results in a dramatic decrease in mineral and scale build up on the critical components
inside the tank. In particular, it means less scale build up on the heating element which is subject to
damage from excessive scaling and over heating. This also means that efficiency stays high and
preventive maintenance is and .
The is positioned on the baffle plate inside the tank and is easily removed and replaced.
Remember that the ’s job is to become the target of mineral attack, so it will be heavily covered
with scale and should be replaced annually for best results.
To remove the you must have already unplugged and shutdown your steam humidifier and
allowed it to cool. The water tank has been drained, the water supply, drain lines and electrical wiring
have been disconnected and the unit has been removed from the duct.
Using a phillips screwdriver, remove the two screws that hold the
baffle plate to the tank. Lift the baffle slightly back to clear the water probe and then straight up and
out of the tank. You can then see the round , or rather what is left of it after a single season.
Notice the heavy scale build up on the that would have been on your element, if the was
not there. Use a rag or pliers to grasp the edges of the and simply unscrew it from the baffle
plate. Rinse off or wipe away any residual scale from the baffle plate and install a new . Leave
a slight gap between the bottom of the and the baffle plate. Now re-insert the baffle plate into
the tank and secure with the two screws that were removed previously. It’s that simple.
The can also benefit the older model steam humidifiers. Simply lay the down into the baffle
plate in the same location as the factory installed model. DO NOT lay the down into the main
tank. It may come in contact with the heating element and damage it. The dimensions of the baffle
plate prevent the from falling down into the tank.
The Z100 is just the latest innovation in the AUTOFLO Steam Humidifier line as we continue in our pursuit
of Excellence Without Compromise.
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Refer to the blow up view on Page 8.
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EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646 E-Mail- info@ewccontrols.com
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