MAINTENANCE
Deliming the Dispenser
Use the following procedure for periodic cleaning and deliming
of the water tank.
NOTE: The lime and mineral content of the supply water will
determine how often this procedure must be performed.
NOTE: Perform this procedure when the dispenser will not be
used for a period of time, such as the end of the day.
1. make sure the water tank is full.
2. Turn the POWER ON/OFF (I/O) switch to the OFF (O)
position.
3. Drain 3 gallons (11 liters) of water out of the 12 gallon (45 liter)
water tank (see "Draining the Dispenser" in this section).
4. Fill the water tank with 3 gallons (11 liters) of off-the-shelf
white vinegar (5% vinegar solution) by pouring it slowly into
the fill cup on the side of the unit.
Deliming the Dispenser
5. Turn the POWER ON/OFF (I/O) switch to the ON (I)
position, and allow the unit to run at the operating
temperature for 1-2 hours.
6. Turn the POWER ON/OFF (I/O) switch to the OFF (O)
position and allow the deliming solution to remain in the
unit for a minimum of 4 hours (preferably, over night.)
7. Drain the solution from the tank (see "Draining the
Dispenser" in this section).
8. Refill the unit with water by following the "Startup"
procedure in the OPERATION section.
NOTE: Steps 7 and 8 may need to be repeated until all de-
Fill Cup
10
• While the unit is at operating temperature, dispense
1/2 quart (0.4 liters) of the deliming solution through the
dispensing port. This exposes the port to the deliming
solution. (Safely discard dispensed solution.)
• Dispense water out of the unit until the discharge is clear
and all deliming solution has been removed and rinsed.
liming solution has been removed.
English
Form No. AWDm-1016