Unit installation

Humidifier

Contact Emerson or your local Emerson representative to obtain a replacement cylinder. To obtain

the correct cylinder, supply the cylinder model from the white three-digit label on the cylinder, or sup-

ply the model, voltage and serial number from the unit specification label.

Remove the Old Cylinder

1. Turn Off the water supply to the unit.

2. The old cylinder must be drained completely before removing. This is done by pushing the auto

On/Off/Drain switch to the “drain” position.

3. When the cylinder is empty, push the auto On/Off/Drain switch to the Off position.

4. Open the main disconnect switch during the entire cylinder change operation.

5. The power wires to the cylinder are attached by cylinder plugs to the electrode pins on top of the

cylinder. Pull these plugs off the pins.

6. Using a slotted screwdriver, loosen the steam hose clamp(s) and pull the steam hose off.

The cylinder is now ready to be lifted out of the unit.

Installing the New Cylinder

1. Leave the main disconnect open until the cylinder is completely installed and reconnected.

2. Ensure that the cylinder mounting stubs are seated properly in the allotted side mounting slots

within the unit.

3. The white sensor plug on all units is for the sensor pin, which always goes on the single pin offset

from the others.

4. Ensure that cylinder plugs are snug on the pins.

5. Replace loose-fitting plugs; loose plugs may generate enough heat to melt and destroy the plug,

and new cylinder plugs must be ordered.

Reverse the procedure to install a new cylinder.

Figure 52 Sensor pins, cylinder plugs

Humidifier Maintenance

WARNING

Risk of electric shock. Can cause injury or death.

Disconnect all local and remote electric power supplies before working within. The plumbing

and electrical compartments contain high-voltage components and wiring. The access cover is

attached with screws. Access should be limited to authorized personnel only.

Cylinder Pin

Sensor Pin

Cylinder

Plug

White

Sensor

Plug