Scotsman NH0422 Guide

NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322, FS1522
A Series Scale Removal and Sanitation for xed reservoir
Maintenance: Scale Removal and Sanitation
Note: Following this procedure will reset the de-scale
and sanitize light.
1. Remove front panel.
2. Push and release the O󰀨 button.
3. Remove ice from bin or dispenser.
4. Turn the water supply to the oat valve OFF.
5. Drain the water and evaporator by disconnecting
the leg of the hose connected to the water sensor
and draining it into the bin. Return the hose to its
original position.
6. Remove the water reservoir cover.
7. Mix a solution of 8 ounces of Scotsman Clear One
Scale Remover and 3 quarts of 95-115 degree F.
potable water.
8. Pour the scale remover solution into the reservoir.
Use a small cup for pouring.
9. Push and release the Clean button: the auger
drive motor and light are on, C is displayed and
the De-scale light blinks. After 20 minutes the
compressor will start.
10. Operate the machine and pour the scale remover
into the reservoir until it is all gone. Keep the
reservoir full. When all the scale remover solution
has been used, turn the water supply back on.
After 20 minutes of ice making the compressor
and auger motor will shut o󰀨.
11. Turn the water supply to the ice machine OFF
12. Drain the water reservoir and evaporator by
disconnecting the leg of the hose connected to
the water sensor and draining it into the bin or a
bucket. Return the hose to its original position.
Discard or melt all ice made during the previous
step.
13. Create a solution of sanitizer. Mix 4oz/118ml of
NuCalgon IMS and 2.5gal/9.5L of (90°F/32°C to
110°F/43°C) potable water to create a 200 ppm
solution.
14. Pour the sanitizing solution into the reservoir.
15. Push and release the On button.
16. Switch the water supply to the ice machine on.
17. Operate the machine for 20 minutes.
18. Push and release the O󰀨 button.
19. Wash the reservoir cover in the remaining
sanitizing solution.
20. Return the reservoir cover to its normal position.
21. Melt or discard all ice made during the sanitizing
process.
22. Wash the inside of the ice storage bin with the
sanitizing solution.
23. Push and release the On button.
24. Return the front panel to its original position and
secure with the original screws
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.
Drain Water
Model:
Scotsman
Clear One Water
NS0422, NS0622, NS0922, NS1322,
IFS0522, FS0822, FS1222, FS1522 8 oz. 3 qts.
NH0422, NH0622, NH0922, NH1322 3 oz. 3 qts.

NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322, FS1522
A Series Scale Removal and Sanitation for xed reservoir
Change De-Scale Notication Interval
This feature is accessible only from standby
(Status Light O󰀨).
1. Press and hold Clean button for 3 seconds.
This starts the Time to Clean Adjustment State and
displays the current time to clean setting.
2. Press the clean button repeatedly to cycle through
the 4 possible settings:
0 (disabled), 4 months, 6 months (default), 1 year
3. Push O󰀨 to conrm the selection.
Maintenance: Sensors
Photo Eyes
The control that senses bin full and empty is a photo-
electric eye, therefore it must be kept clean so it
can “see”. At least twice a year, remove the ice level
sensors from the base of the ice chute, and wipe the
inside clean, as illustrated.
1. Remove front panel.
2. Pull photo eye holders forward to release them.
3. Wipe clean as needed. Do not scratch the photo-
eye portion.
4. Return the eye holders to their normal positions
and return the front panel to its original position.
Note: Eye holders must be mounted properly. They
snap into a centered position and are properly located
when the wires are routed to the back and the left eye
is the one with 2 wires at the connector.
Water Probe
The ice machine senses water by a probe located
near the water reservoir. At least twice a year, the
probe should be wiped clean of mineral build-up.
1. Remove front panelRemove front panel.
2. Loosen the screw and release the water sensor
from the reservoir.
3. Wipe probes clean.