Manitowoc Ice RNS20A Operator’s Manual
Part Number: 000008276 10/13
CounterTop Nugget Ice Machines
RNS12 / RNS20 Models
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
Section 1
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Section 2
Installation Instructions
Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ice Machine Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Supply and Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Before Starting the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table of Contents
Manitowoc Cleaner and Sanitizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Touchless Sensing Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Fuse/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Total Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Potable Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Potable Water Inlet Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Supply and Drain Line Sizing/Connections . . . . . . . . . . . . . . . . . . . . . . . 7
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Section 3
Operation
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
15 Minute Time Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Prior to Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Initial Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Freeze Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Automatic Shut-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Restart After Automatic Shut-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Part Number 000008276 10/13
Section 4
Maintenance
Section 5
Customer Support
Table of Contents (continued)
Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Preventative Maintenance Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . 12
Procedure to Clean Heavily Scaled Flake/Nugget Ice Machines . . . . . . . . . . . 13
Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Component Disassembly for Cleaning/Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . 15
Cleaning the Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Flake/Chiplet/Nugget Commercial Ice Machine Warranty . . . . . . . . . . . . . . . . . . 21
Residential Ice Machine Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Part Number 000008276 10/13 3
Section 1
!
Warning
General Information
Model Numbers
This manual covers the following models:
Lever Activated
RNS12A
Self Contained Air-Cooled
Nugget Ice Machine
RNS20A
Self Contained Air-Cooled
Nugget Ice Machine
N/A
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision concerning use of the appliance by a
person responsible for their safety.
T ouchless Sensor
Activated
RNS12AT
Self Contained Air-Cooled
Nugget Ice Machine
RNS20AT
Self Contained Air-Cooled
Nugget Ice Machine
RNS20ATS
Self Contained Air-Cooled
Nugget Ice Machine
Accessories
MANITOWOC CLEANER AND SANITIZER
Manitowoc Ice Machine Cleaner and Sanitizer are
available in convenient 16 oz. (473 ml) and 1 gal (3.78 l)
bottles. These are the only cleaner and sanitizer
approved for use with Manitowoc products.
Cleaner Part Number Sanitizer Part Number
16 oz. 000000084
LEGS
Optional four inch adjustable legs are available.
TOUCHLESS SENSING OPTION
Touchless sensing can be ordered installed on the ice
machine from the factory or a field conversion kit is
available. The field conversion kit includes a
replacement front panel and instructions for installation.
16 oz. 94-0565-3
1 Gallon 94-0581-3
4 Part Number 000008276 10/13
Section 2
Important
!
Warning
!
Caution
Installation Instructions
These instructions are provided to assist the qualified
installer. Check your local Yellow Pages for the name of
the nearest Manitowoc distributor, or call Manitowoc
Foodservice for information regarding start-up service s.
Failure to follow these installation guidelines may
affect warranty coverage.
Location of Ice Machine
The location selected for the ice machine must meet the
following criteria. If any of these criteria are not met,
select another location.
• The location must be free of airborne and other
contaminants.
To avoid instability the ice machine must be
installed in an area capable of supporting the
weight of the ice machine and a full bin of ice.
Ice Machine Clearance Requirements
RNS12 RNS20
Top 24" (61 cm) 24" (61 cm)
Sides 8" (20 cm) 8" (20 cm)
Back* 5" (13 cm) 5" (13 cm)
* - 5" (13 cm) is recommended for servicing the ice machine.
Clearance can be 0" when water and drain connections exit the
bottom of the ice machine.
• The air temperature must be at least 45°F (7°C), but
must not exceed 110°F (43°C).
• The water temperature must be at least 45°F (7°C),
but must not exceed 90°F (32°C).
• The location must not be near heat-generating
equipment or in direct sunlight.
• The location must be capable of supporting the
weight of the ice machine and a full bin of ice and
allow the ice machine to be level front to back and
side to side.
• The location must allow enough clearance for water
and electrical connections in the rear of the ice
machine. The drain can be routed out the rear or
bottom of dispenser.
• The location must not obstruct airflow through or
around the ice machine. Airflow is in the left side and
out the top. Refer to chart for clearance
requirements.
These ice machines are intended for use in household
and similar applications such as:
• Staff kitchen areas in shops, offices and other work
environments.
The ice machine head section must be protected if i t
will be subjected to temperatures below 32°F (0°C).
Failure caused by exposure to freezing
temperatures is not covered by the warranty. See
“Removal from Service/Winterization”.
• Clients in hotels, motels, farmhouses, bed and
breakfast and other residential type environments.
• Catering and similar non-retail applications.
Part Number 000008276 10/13 5
Installation Instructions Section 2
!
Warning
!
Warning
!
Warning
!
Warning
Important
Electrical Service
All wiring must conform to local, state and national
codes.
VOLTAGE
The maximum allowable voltage variation is ±1 0% of the
rated voltage on the ice machine model/serial number
plate at start-up (when the electrical load is highest).
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine. Circuit breakers must be H.A.C.R.
rated (does not apply in Canada).
115/60/1 ice machines are factory pre-wired with a
power cord and 5-15P plug.
230/50/1 ice machines are factory pre-wired with a
power cord, no plug is supplied.
The ice machine must be grounded in accordance
with national and local electrical codes.
PERSONAL INJURY POTENTIAL
If the supply cord is damaged, do not operate the
equipment until the cord is replaced by a service
agent or similarly qualified person.
TOTAL CIRCUIT AMPACITY
The total circuit ampacity is used to help select the wire
size of the electrical supply.
The wire size (or gauge) is also dependent upon
location, materials used, length of run, etc., so it must be
determined by a qualified electrician.
Water Supply and Drains
POTABLE WATER SUPPLY
Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.
PERSONAL INJURY POTENTIAL
For ice making, connect to a potable water supply
only.
If you are installing a Manitowoc water filter system,
refer to the Installation Instructions supplied with the
filter system for ice making water inlet connections.
POTABLE WATER INLET LINES
Follow these guidelines to install water inlet lines:
• Do not connect the ice machine to a hot water
supply. Be sure all hot water restrictors installed for
other equipment are working. (Check valves on sink
faucets, dishwashers, etc.)
• If water pressure exceeds the maximum (80 psig/
551.5 kPA) recommended pressure, obtain a water
pressure regulator from your Manitowoc distributor.
• Install a water shut-off valve and union for the ice
making water lines.
• Insulate water inlet lines to prevent condensation.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines:
• Drain lines must have a 1.5 inch drop per 5 feet of
run (2.5 cm per meter), and must not create traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Insulate drain lines to prevent condensation.
Electrical Requirements
Voltage
Ice Machine
RNS12
RNS20
Phase
Cycle
1 15/1/60 10.3 amps
230/1/50 5.4 amps
6
Air-Cooled
Total
Circuit
Amps
• Drains must have a union or other suitable means to
allow in place disconnection from the ice machine
when servicing is required.
Part Number 000008276 10/13
Section 2 Installation Instructions
!
Caution
DRAIN
ICE MAKING
WATER INLET
TUBING 3/8" MIN.
I.D. (.95 cm)
DRAIN CONNECTION IS
INTERCHANGEABLE
DRAIN IS PREINSTALLED TO RUN OUT
THE BACK
MOVE DRAIN PLUG TO RUN DRAIN
OUT THE BOTTOM IF DESIRED
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
Plumbing must conform to state and local codes.
Location Water Temperature Water Pressure Ice Machine Fitting
Ice Making
Water Inlet
Ice Machine
Drain
45°F (6°C) Min.
90°F (32°C) Max.
--- ---
20 psi (137.9 kPA) Min.
80 psi (551.5 kPA) Max.
3/8" Female
Pipe Thread
3/4" Female
Pipe Thread
Tubing Size Up to Ice
Machine Fitting
3/8" (10 mm) minimum
inside diameter
3/4" (19 mm) minimum
inside diameter
Typical Water Supply Drain Installation
Part Number 000008276 10/13 7
Installation Instructions Section 2
!
Warning
Before Starting the Ice Machine
INSTALLATION CHECKLIST All Manitowoc ice machines are factory-operated and
X Checklist Item
Is the Ice Machine level?
Has all of the internal packing been removed?
Have all of the electrical and water connections
been made?
Has the supply voltage been tested and checked
against the rating on the nameplate?
Is there proper clearance around the ice machine
for air circulation?
Has the ice machine been installed where am bien t
temperatures will remain in the range of 45° 110°F (7° - 43°C)?
Has the ice machine been installed where the
incoming water temperature will remain in the
range of 45° - 90°F (7° - 32°C)?
Are all electrical leads free from contact with
refrigeration lines and moving equipment?
Has the owner/operator been instructed regarding
maintenance and the use of Manitowoc Cleaner
and Sanitizer?
Has the warranty registration card been sent to the
factory?
Has the ice machine and dispenser been
sanitized?
Has this manual been given to the owner/operator?
Is the water reservoir approximately 2/3 full of
water?
Has the toggle switch been placed in the ICE
position? (Switch is located behind front cover)
adjusted before shipment. Normally, new installations do
not require any adjustment. To ensure prop er op eration ,
follow the Operational Checks in Section 3 of this
manual.
Adjustments and maintenance procedures outlined in
this manual are not covered by the warranty.
Potential Personal Injury Situation
Do not operate equipment that has been misused.
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
8
Part Number 000008276 10/13
Sequence of Operation
Section 3
Operation
15 MINUTE TIME DELAY
The 15 minute delay must be expired before the
gearmotor or compressor will energize.
The delay period starts to time out upon applica tion of
power or movement of the toggle switch from OFF to
ICE.
The delay period starts when:
• The ice machine enters Automatic Shutoff
• Power is disconnected and reconnected
• The toggle switch is moved from OFF to ICE
This time delay period can not be overridden and will
reset to 15 minutes if any of the above conditions occur.
PRIOR TO START-UP
When the toggle switch is placed in the ICE position the
following must occur in the listed order before ice
making will start.
• The ice chute damper must be in the closed or down
position.
• The 15 minute delay period must be expired. The
delay period starts upon application of power or
toggle switch movement from OFF to ICE.
• The water sensing switch must be closed (water
reservoir full of water and water sensing float in the
up position).
INITIAL START-UP
Applying power and/or moving the toggle switch from
OFF to ICE will start a 15 minute delay period. This
delay period can not be overridden. With the water
sensing switch closed (reservoir full of water) the gear
motor will energize at the end of the 15 minute time
delay. The compressor and condenser fan motor
energize 5 seconds after the gearmotor.
FREEZE CYCLE
The float valve automatically maintains the water level in
the reservoir. The ice damper will open and close to
verify ice production. The ice machine will continue to
make ice until the ice damper is held open (up) as ice
fills the bin.
AUTOMATIC SHUT-OFF
When the ice damper is held open by ice, the gearmotor,
compressor and condenser fan de-energize. The fifteen
minute delay period starts to time out. The ice machine
will remain off until the 15 minute delay period expires
and the ice damper closes.
RESTART AFTER AUTOMATIC SHUT-OFF
1. Less than 4 hours have passed since automatic
shut-off.
With the water sensing switch closed (reservoir full of
water) the gear motor will energize at the end of the 15
minute time delay. The compressor and condenser fan
motor energize 5 seconds after the gearmotor.
2. More than 4 hours have passed since automatic
shut-off.
The dump valve energizes to drain the evaporator. After
30 seconds the dump valve de-energizes. When the
reservoir fills with water, the water sensing switch closes
and the gearmotor energizes. The compressor and
condenser fan motor energize 5 seconds after the
gearmotor.
Part Number 000008276 10/13 9
Operation Section 3
WATER
SENSING
FLOAT
Operational Checks
GENERAL
Manitowoc ice machines are factory-operated and
adjusted before shipment. Normally , a newly inst alled ice
machine does not require any adjustment.
To ensure proper operation, always follow the
Operational Checks:
• when starting the ice machine for the first time
• after a prolonged out of service period
• after cleaning and sanitizing
NOTE: Routine adjustments and maintenanc e
procedures outlined in this manual are not covered by
the warranty.
Blue Light
The blue light on the dispensing spout is energized
when the toggle switch is in the ICE position and the ice
machine is operational. If the light is not energized the
ice machine will not make ice. Refer to section 5
Customer Support if the ice machine has power and the
light will not energize.
Toggle Switch
The toggle switch must be placed in the ON position to
make ice.
Wat er Reservoir
Ice Production
Allow the ice machine to produce ice for 15 minutes
before testing the dispense mechanism. This will insure
a sufficient quantity of ice in the bin for dispensing.
OPERATION
1. Set Selector Switch (When Used)
Depress the button adjacent to the text.
• Select ICE for ice dispense only
• Select ICE/WATER for water and ice
• Select WATER for water only
2. Dispense
Lever Activated
Use glass or container to press dispenser arm
backward. Release the arm and the ice machine will
stop dispensing.
Touchless Center Activated
Place a glass or container underneath the dispensing
spout within 1" (2.5 cm) of the sensor. The ice machine
will automatically dispense. Remove the glass or
container to stop dispensing.
The water reservoir must be 2/3 full of water and the
water sensing float must be up (switch closed) before
the ice machine will start.
10
Part Number 000008276 10/13
Section 4
!
Caution
!
Warning
Maintenance
Cleaning and Sanitizing
GENERAL
You are responsible for maintaining the ice machine in
accordance with the instructions in this manual.
Maintenance procedures are not covered by the
warranty.
Clean and sanitize the ice machine every six months for
efficient operation. If the ice machine requires more
frequent cleaning and sanitizing, consult a qualified
service company to test the water quality and
recommend appropriate water treatment. If required, an
extremely dirty ice machine may be taken apart for
cleaning and sanitizing.
Use only Manitowoc approved Ice Machine Cleaner
(part number 000000084) and Sanitizer (part
number 94-0565-3). Do not mix Cleaner and
Sanitizer solutions together. It is a violation of
Federal law to use these solutions in a manner
inconsistent with their labeling. Read and
understand all labels printed on bottles before use.
Wear rubber gloves and safety gogg les (an d/or face
shield) when handling Ice Machine Cleaner or
Sanitizer.
EXTERIOR CLEANING
Weekly: remove grill from scrap ice tray and wipe splash
panel, scrap ice tray and grill with sanitizer & water
solution (refer to
ice tray to clear drain.
TOUCHLESS SENSOR ONLY
Wipe sensor window with a soft cloth and mild detergent.
Rinse with clear water and dry with a clean soft cloth.
Page 14). Pour excess solution in scrap
PROCEDURES
This Manitowoc Ice Machine has three separate
cleaning procedures.
Preventative Maintenance Cleaning Procedure
Perform this procedure as required for your water
conditions. Recommended monthly.
• Allows cleaning the ice machine without removing all
of the ice from the bin
• Removes mineral deposits from areas or surfaces
that are in direct contact with water during the freeze
cycle (reservoir, evaporator, auger, drain lines)
Cleaning/Sanitizing Procedure
This procedure must be performed a minimum of once
every six months.
• All ice must be removed from the bin
• The ice machine and bin must be disassembled
cleaned and sanitized
• The ice machine produces ice with the cleaner and
sanitizer solutions
• All ice produced during the cleaning and sanitizing
procedures must be discarded
Heavily Scaled Cleaning Procedure
Perform this procedure if you have some or all of these
symptoms.
• Grinding, popping or squealing noises from the
evaporator
• Grinding noise from gearbox
• Ice machine stops on Safety Shutdown
• Your water has a high concentration of minerals
• The ice machine has not been on a regular
maintenance schedule.
Run a cleaning procedure as described above after this
procedure is complete.
NOTE: A Sanitizing Procedure must be performed after
all cleaning procedures have been completed.
Part Number 000008276 10/13 11
Maintenance Section 4
!
Caution
Add Cleaner To Evaporator Here
PREVENTATIVE MAINTENANCE CLEANING PROCEDURE
Ice machine cleaner is used to remove lime scale or other mineral deposits. It is not used to remove algae or slime.
Refer to “Sanitizing Procedure” for removal of algae and slime. To initiate a cleaning cycle using Manitowoc’s
Cleaning Technology use the following procedure.
Step 1 T o st art a cleaning cycle, move the toggle switch
to the CLEAN position. Water will flow through the water
dump valve and down the drain.
Step 2 Remove the top panel and translucent plastic
ice chute cover. Wait about one minute then add the
proper amount of Manitowoc Ice Machine Cleaner.
Rinse the cleaner from the top of the evaporator with
2
ounces (60 ml) of clear water and re-install cover.
Model Amount of Cleaner
RNS12 RNS20 2 ounce (60 ml)
Use only Manitowoc approved Ice Machine Cleaner.
It is a violation of Federal law to use these solutions
in a manner inconsistent with their labeling. Read
and understand all labels printed on bottles before
use.
Step 3 The ice machine will run a wash cycle, a series
of rinse cycles and then stop. This entire cycle lasts
approximately 30 minutes.
NOTE: Periodic cleaning must be performed on adjacent
surface areas not contacted by the water distribution
system.
NOTE: The ice machine may be set to start and finish a
cleaning procedure, and then automatically start ice
making again.
A. After cleaner is added move the switch from
CLEAN to ICE position.
B. When the cleaning cycle is complete ice making
will start automatically.
Changing toggle switch position during clean cycle:
1. Less than 60 seconds into Clean cycle - The Clean
cycle will end when the toggle switch is moved to the
OFF position.
2. More than 60 seconds into Clean cycle - The ice
machine will complete the Clean cycle. Toggle
switch position will determine the next cycle after the
Clean cycle is completed.
• CLEAN POSITION - The ice machine will wait for a
change in toggle switch position.
• OFF POSITION - The ice machine will wait for a
change in toggle switch position.
• ICE POSITION - The ice machine will start making
ice automatically.
Manitowoc recommends disassembling, cleaning and
sanitizing the ice machine and dispenser every six
months.
12
Part Number 000008276 10/13
Section 4 Maintenance
Important
PROCEDURE TO CLEAN HEAVILY SCALED FLAKE/ NUGGET ICE MACHINES
Ice machines that are heavily scaled or have not been
cleaned on a regular basis will need to run this
procedure. Failure to do so may result in binding of the
auger as the lime scale releases from the auger and
evaporator barrel.
Step 1 Remove panels and set the ICE/OFF/CLEAN
toggle switch to the OFF position.
Step 2 Remove all ice from the bin.
Step 3 Turn off the water su pply to the ice machine.
Step 4 Place ICE/OFF/CLEAN toggle switch in the
CLEAN position. The dump valve will open and drain the
water from the evaporator and reservoir.
Step 5 Wait approximately 30 seconds (or until the
evaporator is drained) and place the toggle switch in the
OFF position.
Step 6 Refer to chart and add the correct amount of
cleaner for your model ice machine.
CLEANING PROCEDURE
Ice machines that are heavily scaled or have not been
cleaned on a regular basis will need to run the Heavily
Scaled Cleaning Procedure before this one. Failure to
do so may result in binding of the auger as the lime scale
releases from the auger and evaporator barrel.
Ice machine cleaner is used to remove lime scale or
other mineral deposits. It is not used to remove algae or
slime. Refer to the “Sanitizing Procedure” for removal of
algae and slime.
Step 1 Remove panels and set the ICE/OFF/CLEAN
toggle switch to the OFF position.
Step 2 Turn off the water supply to the ice machine.
Step 3 Remove all ice from the bin.
Step 4 Place ICE/OFF/CLEAN toggle switch in the
CLEAN position. The dump valve will open and drain the
water from the evaporator and reservoir.
Step 5 Wait approximately 30 seconds (or until the
evaporator is drained) and place the to ggle switch i n the
OFF position.
Model Amount of Cleaner
RNS12 RNS20 12 ounce (355 ml)
Step 7 Turn on the water supply to the ice machine.
Leave the cleaner/water solution in the evaporator
for a minimum of 4 hours.
Step 8 Move the toggle switch to the ICE position. The
compressor will energize and produce ice with the
cleaning solution. Continue the freeze cycle for 15
minutes.
Step 9 Move the toggle switch to the OFF position,
then follow the standard cleaning (
Page 13) and
sanitizing procedures (Page 14).
Step 6 Refer to chart and premix the correct solution of
cleaner and cool water for your ice machine.
Amount of
Model
RNS12 RNS20 2 ounces (60 ml) 32 ounces (1 liter)
Cleaner
Part Number
000000084
Amount of Water
Part Number 000008276 10/13 13
Maintenance Section 4
Step 7 Remove the top cover from the ice chute and
pour the cleaner/water solution into the evaporator. Add
the entire amount of premixed solution (excess solution
will exit through the overflow tube in the water reservoir).
Step 8 Replace the ice chute cover and allow the ice
machine to stand for 30 minutes.
Step 9 Turn on the water supply to the ice machine.
Step 10 Move the toggle switch to the ICE position.
After the 15 minute delay period expires the compressor
will energize and produce ice with the cleaning solution.
Step 11 The ice machine will freeze and discharge the
cleaning solution into the bin. Allow the cycle to run for
15 minutes.
Step 12 Place the toggle switch in the OFF position
and refer to sanitizing procedure.
NOTE: Discard all ice produced during the cleaning
process. Cleaning and sanitizing must be performed on
adjacent surface areas not contacted by the water
distribution system. Refer to Component Disassembly
for Cleaning/Sanitizing (
Page 15) - Disassemble, clean
and sanitize the ice machine a minimum of once every
six months.
SANITIZING PROCEDURE
Ice machine sanitizer is used to remove algae or slime. It
is not used to remove lime scale or other mineral
deposits. Refer to the “Cleaning Procedure” for removal
of lime scale or other mineral deposits.
NOTE: Sanitizing must be performed on adjacent
surface areas not contacted by the water distribution
system. Always perform Component Disassembly for
Cleaning/Sanitizing procedure and a Cleaning
Procedure before sanitizing the ice machine.
Step 4 Refer to the chart and add the correct amount of
sanitizer and cool water for your model ice machine.
Model
RNS12 RNS20 2 ounces (60 ml) 3 gallons (11 liters)
Amount of
Sanitizer
Amount of Water
Step 5 Remove the top cover from the ice chute and
pour the sanitizer/water solution into the evaporator . Add
the entire amount of premixed solution (excess solution
will exit through the overflow tube in the water reservoir).
Step 6 Replace the ice chute cover and allow the ice
machine to stand for 30 minutes.
Step 7 Turn on the water supply to the ice machine.
Step 8 Move the toggle switch to the ICE position. After
the 15 minute delay period expires the compressor will
energize and produce ice with the sanitizing solution.
Step 9 The ice machine will freeze and discharge the
sanitizing solution into the bin. Allow the cycle to run for
15 minutes.
NOTE: Discard all ice produced during the sanitizing
process.
Step 10 Place the toggle switch in the CLEAN position.
The ice machine will run a wash cycle, a series of rinse
cycles and then stop. This entire cycle lasts
approximately 30 minutes.
Step 11 Refer to Component Disassembly for
Cleaning/Sanitizing, (
Page 15) remove clean and
sanitize all parts listed.
Step 1 Turn off the water supply to the ice machine.
Step 2 Place ICE/OFF/CLEAN toggle switch in the
CLEAN position. The dump valve will open and drain the
water from the evaporator and reservoir.
Step 3 Wait approximately 30 seconds (or until the
evaporator is drained) and place the toggle switch in the
OFF position.
14
Part Number 000008276 10/13
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