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NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322, FS1522
A Series Air, Water, or Remote User Manual
March 2021
Page 18
Maintenance: Scale Removal and Sanitation
Note: Following this procedure will reset the de-scale
and sanitize light.
Preparing to Clean:
1. Remove both the front and right panels.
2. Push and release the OFF button.
3. Remove ice from bin or dispenser.
4. Remove the ice chute cover.
5. Remove the water reservoir cover.
6. Turn the water supply to the oat valve o by turn
-
ing the knob 1/4 turn CCW.
7. Drain the water reservoir and evaporator into a
bucket using the vent tube. Return the vent tube to
it’s original collar bracket.
8. Using a small cup for precise pouring, add hot
(100-120°F) water into the reservoir until water
comes out of the top of the evaporator at the ex
-
truder, about 1qt (varies slightly by model).
9. Let hot water warm evaporator for 2-5 minutes and
then drain the system (refer to step 7)
10. Loosen the thumb screw and raise the water res
-
ervoir from the “Make Ice” position to the “Clean”
position.
Scale Removal:
11. Prepare a solution of 16oz. Scotsman Clear One
scale remover and 16oz. 95-115 °F. potable water.
12. Using a small cup for precise pouring, add the
scale remover solution into the reservoir until the
solution comes out of top of the evaporator at the
extruder, about 1qt (varies slightly by model).
13. Push and release the Clean button: C is displayed
and the Time to Clean light blinks. The auger will
turn and circulate the scale remover for 30 min
-
utes before shutting o. No ice is made during the
cleaning cycle.
14. Lower the water reservoir back to the “Make Ice”
position. Drain the water reservoir and evaporator
into a bucket using the vent tube.
15. Perform a rinse of the system: turn the water sup
-
ply to the oat valve back on and allow the evapo-
rator to ll. Once full, turn the water supply at the
oat valve o and drain the system using the vent
tube. Return the vent tube to it’s original collar
bracket.
Sanitize:
16. Loosen the thumb screw and raise the water res
-
ervoir from the “Make Ice” position to the “Clean”
position.
17. Prepare a solution of sanitizer. Mix 4 oz. of Nu
-
Calgon IMS and 2.5 gallons of 95-115 °F. potable
water to create a 200 ppm solution.
18. Using a small cup for precise pouring, add the
sanitizer solution into the reservoir until the solu
-
tion comes out of top of the evaporator at the
extruder, about 1qt (varies slightly by model).
Reserve any excess sanitizer.
19. Allow the sanitizer to soak while steps 20-24 are
completed, or at least 60 seconds.
Continued on next page:
Ice machine scale remover
contains acids. Acids can
cause burns.
If concentrated cleaner
comes in contact with
skin, ush with water. if
swallowed, do NOT induce
vomiting.
Give large amounts of
water or milk. Call Physician
immediately. Keep out of the
reach of children.
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