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Installation & Maintenance
Model 506 (UC Ice Maker)
Model 506 (UC Ice Maker)
2-10
#3752200 - Revision B - May, 2006
Using a Commercially Prepared Cleaning Solution
Commercially prepared liquid ice machine cleaning
solutions are available from refrigeration and plumbing
supply houses.
Carefully follow the instructions on the bottle of ice
maker cleaner to prepare 1/2 gal. (approx. 2 liters) of
cleaning solution.
7. Turn the service control to the “OFF” position.
Drain the hot tap water from the water reservoir
pan. Replace drain plug when the pan is empty.
8. Turn the service control to the “CLEAN” position.
Carefully pour the entire 1/2 gal. of cleaning solu-
tion into the water reservoir pan.
If the cleaning solution starts to foam when it is
poured into the pan, stop pouring until foaming
stops, then resume pouring.
9. Allow the cleaning solution to circulate until the min-
eral build-up on the evaporator plate has dissolved.
If at the end of 30 minutes the mineral build-up has
still not dissolved, turn the service control to the
“OFF” position, and carefully drain out the cleaning
solution. Mix another 1/2 gal. of solution and add
as before.
10. While the cleaning solution is circulating, clean the
cutter grid by dipping it in a pan of prepared clean-
ing solution.
After allowing the grid to soak for approximately 15
minutes, use a hard bristled brush to scrub the wire
connectors and insulators around the edge of the
grid.
WHEN USING A COMMERCIALLY PREPARED LIQ-
UID CLEANING SOLUTION, USE ONLY A CITRIC
ACID BASED SOLUTION, OR A COMBINATION OF
CITRIC ACID AND PHOSPHORIC ACID BASED
SOLUTION. DO NOT USE MURATIC ACID OR ANY
OTHER ACID NOT APPROVED FOR USE IN A
FOOD MACHINE.
Most ice machine cleaners are citric or phosphoric
acid which can cause irritation even after dilution.
In case of contact with eyes, flush eyes thoroughly
with fresh water and contact a physician immedi-
ately. In case of contact with skin, rinse well with
water. If swallowed, give large amounts of water
and contact a physician immediately. Do not
induce vomiting. KEEP OUT OF REACH OF CHIL-
DREN.
11. Clean the scale off the side flanges of the evapora-
tor freezing plate with a plastic scrubber dipped into
the prepared cleaning solution.
Always scrub in the direction of water flow (from
front to back on the side of the plate).
12. After draining out the cleaning solution from the
water reservoir pan, add 1/2 gal. of fresh water and
allow it to circulate for 5 minutes. Drain, and repeat
the rinsing process at least one more time.
13. Wash out the bin and inside the bin door with a soft
cloth and a warm water and baking soda solution.
14. Clean the exterior enamel surfaces and the gaskets
around the door with warm water and a mild soap
or detergent. Rinse and dry after washing.
DO NOT use a harsh or abrasive cleaner on the
exterior surfaces.
Use a good household appliance wax will help pro-
tect the exterior finish of the ice maker.
15. Replace the cutter grid. Make certain the drain plug
has been replaced in the bottom of the water reser-
voir pan. Turn the service control to the “ON” posi-
tion and begin normal operation of the ice maker.