Form No. FSDM-0119
13
English
MAINTENANCE
Draining the Water Reservoir
The water reservoir in humidified units must be drained prior to
moving the cabinet as well as during the “Removing Lime and
Mineral Deposits” procedure.
WARNING
ELECTRIC SHOCK HAZARD: Turn OFF power switch,
unplug power cord, and allow unit to cool before
performing any cleaning, adjustments, or maintenance.
1. Turn off the unit, unplug the power cord, and allow the unit
to cool.
2. Locate the valve inside the cabinet on the underside of the
ceiling sheet.
CAUTION
BURN HAZARD: Ceiling sheet and water in reservoir are
hot during operation. Allow to cool before draining.
3. Position a one gallon (four liter) container under the valve.
4. Turn the valve handle from the horizontal position (closed)
to the vertical position (open) to drain the reservoir.
5. Once the reservoir is empty, return the valve handle to the
closed position.
Valve
Open
Valve
Closed
Draining Reservoir Valve
NOTE: If the water used has an excessive amount of lime or
mineral content, follow the REMOVING LIME AND
MINERAL DEPOSITS procedure for periodic cleaning
and deliming of the water reservoir.
NOTE: Unit failure caused by liming or sediment buildup is not
covered under warranty.
Removing Lime and Mineral Deposits
Use the following procedure for periodic cleaning and de-liming
of the water reservoir in humidified units.
NOTE: The lime and mineral content of the water used for
daily operation will determine how often the deliming
procedure must be performed.
NOTE: Perform this procedure when the unit will not be used
for a period of time, such as the end of the day.
1. Turn off the unit, unplug the power cord, and allow the unit
to cool.
2. After the unit has cooled down, perform the “Draining the
Water Reservoir” procedure in this section.
3. Fill the water reservoir with a mixture of 75% water and
25% white vinegar. Do not use flavored vinegar.
4. Plug in and turn on the unit.
5. Set both the air temperature and humidity to their highest
settings and allow the unit to run for 30 minutes.
6. Turn off the unit, unplug the power cord, and allow the unit
to cool.
7. Perform the “Draining the Water Reservoir” procedure to
empty the deliming solution from the water reservoir.
8. Continue to fill and drain the water reservoir with clean
water until the deliming solution is rinsed through and the
water discharge is clean.
9. Plug the unit into its power source and fill the reservoir
as usual for daily operation using the procedure in the
OPERATION section of this manual.
Replacing an LED Light Strip
Units are equipped with two LED light strips that illuminate the
warming area. When replacing an LED light strip, use Hatco
P/N 04.29.405.90.
Use the following procedure to replace an LED light strip.
1. Turn off the unit, unplug the power cord, and allow the unit
to cool.
2. Pull the LED light strip from the clips securing it to the
corner.
3. Pull the top of the LED strip down and out of the LED
housing to expose the wire connectors.
4. Disconnect the wire connectors from the LED light strip
being replaced.
5. Connect the wire connectors from the new LED light strip.
6. Push the wiring and the top of the LED light strip up into
the LED housing.
7. Insert the LED light strip into the clips to secure it.
LED
Clip
LED
Housing
LED
Light
Strip
Wire
Connector
Replacing an LED Light Strip (Door Removed for Clarity)
