Manitowoc
R Model
Flake & Nugget
Technician’s
Handbook
This manual is updated as new information and models
are released. Visit our website for the latest manual.
America’s #1 Selling Ice Machine
Part Number 000007661 7/10
www.manitowocice.com
Read These Before Proceeding:
!
Caution
Important
! Warning
We reserve the right to make product
improvements at any time. S pecifications and
design are subject to change without notice.
Proper installation, care and maintenance are
essential for maximum performance and troublefree operation of your Manitowoc equipment. If
you encounter problems not covered by this
handbook, do not proceed, contact Manitowoc
Foodservice Group. We will be happy to provide
assistance.
Routine adjustments and maintenance
procedures outlined in this handbook are not
covered by the warranty.
PERSONAL INJURY POTENTIAL
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.
Table of Contents
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . .7
Self Contained
Air & Water-Cooled Models . . . . . . . . .7
QuietQube Remote Air-cooled Models with
Remote Condensing Units . . . . . . . . .7
Model/Serial Number . . . . . . . . . . . . . . . .8
Manitowoc Cleaner and Sanitizer . . . . . .8
Ice Machine Warranty Information . . . . .8
Installation
Location of Ice Machine . . . . . . . . . . . . . .9
Installation Requirements . . . . . . . . . . . .9
Potable Water Requirements . . . . . . . . . .10
Drain Connections . . . . . . . . . . . . . . . . . .10
Ice Machine Clearance Requirements . .11
Cooling Tower Applications
(Water-Cooled Models Only) . . . . . . . . . .12
Heat of Rejection . . . . . . . . . . . . . . . . . . .13
RF Models . . . . . . . . . . . . . . . . . . . . . .13
RN Models . . . . . . . . . . . . . . . . . . . . .13
Electrical Service . . . . . . . . . . . . . . . . . . .13
Voltage . . . . . . . . . . . . . . . . . . . . . . . .13
Fuse/Circuit Breaker . . . . . . . . . . . . . . 14
Ground Fault Interrupter Circuit (GFIC) 14
Maintenance
Cleaning and Sanitizing . . . . . . . . . . . . . .15
Exterior Cleaning . . . . . . . . . . . . . . . . .15
RF Models Cleaning/
Sanitizing Procedures . . . . . . . . . . . . . 16
RN Models Cleaning/
Sanitizing Procedure . . . . . . . . . . . . . .22
Cleaning the Condenser . . . . . . . . . . .24
Removal from Service/Winterization . . .25
Part Number 000007661 7/10 3
Operation
Ice Making Sequence of Operation . . . . 27
Self-Contained Air-Cooled
RF0244/RF0266/RF0385/
RF0388/RF0399 . . . . . . . . . . . . . . . . . 27
Self-Contained Air-Cooled
RF0300 . . . . . . . . . . . . . . . . . . . . . . . . 27
Self-Contained Air-Cooled
RF0650/RF1200/RF2300 . . . . . . . . . . 28
QuietQube Remote Air-cooled Models with
Remote Condensing Units
RF1200C/RF2300C . . . . . . . . . . . . . . 29
Self-Contained Air-cooled &
Water-Cooled RN0400 . . . . . . . . . . . . 30
Self-Contained Air-Cooled &
Water-Cooled RN1000/RN1400 . . . . . 31
QuietQube Remote Air-cooled Models with
Remote Condensing Units
RN1000C/RN1200C . . . . . . . . . . . . . . 32
Thermostat Settings . . . . . . . . . . . . . . . . 34
RF Models . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting
Electrical Flowcharts . . . . . . . . . . . . . . . . 37
RF0244/RF0266RF0385//RF00388/
RF0399 Air & Water . . . . . . . . . . . . . . 38
RF0300 Air & Water . . . . . . . . . . . . . . 43
RF0650/RF1200 Air & Water . . . . . . . 48
RF2300 Air & Water . . . . . . . . . . . . . . 53
RN1000/RN1400 Air & Water . . . . . . . 60
RN1000C/RN1200C QuietQube . . . . . 68
RF1200C QuietQube . . . . . . . . . . . . . 78
RF2300C QuietQube . . . . . . . . . . . . . 84
Capillary Tube Models . . . . . . . . . . . . . . . 91
Thermostatic Expansion Valve Models . 92
4 Part Number 000007661 7/10
Component Specifications
Bin Thermostat . . . . . . . . . . . . . . . . . .93
Low Temperature Thermostat . . . . . . .93
High Pressure Cutout (HPCO) Control 93
Low Pressure Cutout (LPCO) Control . 94
Fan Cycle Control . . . . . . . . . . . . . . . .94
Filter-Driers . . . . . . . . . . . . . . . . . . . . .95
Suction Cleanup Filter-Drier . . . . . . . .95
Total System Refrigerant Charge . . . .96
Charts
Cycle Times/24-Hour Ice Production/
Refrigerant Pressure Charts . . . . . . . . . .97
RF0244A . . . . . . . . . . . . . . . . . . . . . . .98
RF0266A . . . . . . . . . . . . . . . . . . . . . . .99
RF0385A . . . . . . . . . . . . . . . . . . . . . . .100
RF0388A . . . . . . . . . . . . . . . . . . . . . . .101
RF0399A . . . . . . . . . . . . . . . . . . . . . . .102
RF0300A . . . . . . . . . . . . . . . . . . . . . . .103
RF0650A . . . . . . . . . . . . . . . . . . . . . . .104
RF1200A . . . . . . . . . . . . . . . . . . . . . . .105
RF1200W . . . . . . . . . . . . . . . . . . . . . .106
RF2300A . . . . . . . . . . . . . . . . . . . . . . .107
RF2300W . . . . . . . . . . . . . . . . . . . . . .108
RN1000A . . . . . . . . . . . . . . . . . . . . . . .109
RN1000W . . . . . . . . . . . . . . . . . . . . . .110
RN1400A . . . . . . . . . . . . . . . . . . . . . . .111
RN1400W . . . . . . . . . . . . . . . . . . . . . .112
RN1078C . . . . . . . . . . . . . . . . . . . . . .113
RN1278C . . . . . . . . . . . . . . . . . . . . . .114
RF1278C . . . . . . . . . . . . . . . . . . . . . . .115
RF2378C . . . . . . . . . . . . . . . . . . . . . . .116
Part Number 000007661 7/10 5
Diagrams
Wiring Diagrams . . . . . . . . . . . . . . . . . . . 117
RF0244/RF0266/RF0385/
RF0388/RF0399 Air-Cooled . . . . . . . . 118
RF0300 Air-Cooled . . . . . . . . . . . . . . . 120
RF0650 - RF1200 Air-Cooled . . . . . . . 122
RF1200 Water-Cooled . . . . . . . . . . . . 124
RF2300 Air-Cooled & Water-cooled . . 126
RN1000/RN1400 Air & Water Cooled 128
RN1000C QuietQube Head Section . . 129
RN1200C QuietQube Head Section . . 130
RN2300C QuietQube Head Section . . 132
RCU Condensing Unit 1ph . . . . . . . . . 134
RCU Condensing Unit 3ph . . . . . . . . . 135
Refrigeration Tubing Schematics . . . . . 136
RF0244/RF0266/RF0388/RF0399
RF0300/RF0650 Air-cooled . . . . . . . . 136
RF1200 Air-cooled . . . . . . . . . . . . . . . 138
RF1200 Water-cooled . . . . . . . . . . . . 140
RF2300 Air-cooled . . . . . . . . . . . . . . . 142
RF2300 Water-cooled . . . . . . . . . . . . 144
RN1000/RN1400 Air & Water-cooled . 146
RN1000C QuietQube Head Section &
RCU1075 Condensing Unit . . . . . . . . 148
RN1200C QuietQube Head Section &
RCU1275 Condensing Unit . . . . . . . . 150
RN2300C QuietQube Head Section &
RCU2375 Condensing Unit . . . . . . . . 152
6 Part Number 000007661 7/10
General Information
Model Numbers
SELF CONTAINED AIR & WATER-COOLED MODELS
Flake Models
Self Storage
Air-Cooled
RF0244A – – –
RF0266A – – –
RF0385A – – –
RF0388A – – –
RF0399A – – –
– – RF0300A –
– – RF0650A –
– – RF1200A –
– – RF2300A –
Self Storage
Water-Cooled
Nugget Models
Self Storage
Air-Cooled
– – RN1008A RN1009W
– – RN1408A RN1409W
Self Storage
Water-Cooled
Modular
Air-Cooled
Modular
Air-Cooled
Modular
Water-
Cooled
Modular
Water-
Cooled
QUIETQUBE REMOTE AIR-COOLED MODELS WITH REMOTE CONDENSING UNITS
Flake Models
QuietQube Head
RF1278C RCU1275
RF2378C RCU2375
RCU Remote
Condensing Unit
Nugget Models
QuietQube Head
RN1078C RCU1075
RN1278C RCU1275
Part Number 000007661 7/10 7
RCU Remote
Condensing Unit
Model/Serial Number
These numbers are required when requesting
information from your local Manitowoc Distributor, or
Manitowoc Ice. The model and serial number are
listed on the MODEL/SERIAL NUMBER DECAL
affixed to the ice machine.
Manitowoc Cleaner and Sanitizer
Manitowoc Ice Machine Cleaner and Sanitizer are
available in 16 oz. (473 ml) bottles. These are the only
cleaners and sanitizers approved for use with
Manitowoc products.
Cleaner Part Number Sanitizer Part Number
16 oz. 000000084 16 oz. 9405653
1 gal N/A 1 gal. 9405813
Ice Machine Warranty Information
Warranty information for all ice machine models is
available on our website at www.manitowocice.com.
8 Part Number 000007661 7/10
Installation
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.
• 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.
• The location must allow enough clearance for
water, drain and electrical connections in the rear
of the ice machine.
• The location must not obstruct airflow through or
around the ice machine.
Installation Requirements
• The air temperature must be at least 50°F (10°C),
but must not exceed 110°F (43°C).
• The water temperature must be at least 40°F
(4°C), but must not exceed 90°F (32°C).
• The ice machine and bin must be level.
• Vent the ice machine and bin drains separately.
• Bin drain termination must have an air gap.
• RF Models Only: A backflow preventer is required
on water inlet lines.
• Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
Part Number 000007661 7/10 9
Potable Water Requirements
• Plumbing must conform to local codes.
• 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 maximum pressure
(70 psig [483 kPa] RN1000; 80 psig [552 kPa] for
all other models) obtain a water pressure regulator
from your Manitowoc distributor.
• A water shut-off valve is required to clean the ice
machine.
• A union for both the ice making and condenser
water lines is required.
• Water inlet lines require insulation to prevent
condensation.
• RF Models: A backflow preventer is required on
water inlet lines.
Drain Connections
• 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.
• Separate insulated bin and water-cooled
condenser drain lines are required.
• The bin and ice machine drains require a vent.
10 Part Number 000007661 7/10
Ice Machine Clearance Requirements
Head
Sections
Back 5" (12.7 cm) 5" (12.7 cm) 0" (0 cm)
Sides/Top 8" (20.3 cm) 8" (20.3 cm) 0" (20 cm)
* Water-Cooled Only - There is no minimum clearan ce required. This
value is recommended for efficient operation and servicing only.
Self-
Contained
Air-Cooled
RCU Units
Front/Back 24" (61.0 cm)
Sides/Top 6" (15.2 cm)*
Self-
Contained
Water-Cooled*
Remote Condensing Unit*
QuietQube
Air-Cooled
NOTE: Allowance must be made for removal when the
ice machine is built-in. Monthly removal of the top
panel is required for cleaning and sanitizing.
Part Number 000007661 7/10 11
Cooling Tower Applications (Water-Cooled Models Only)
A water cooling tower installation does not require
modification of the ice machine. The water regulator
valve for the condenser continues to control the
refrigeration discharge pressure.
It is necessary to know the amount of heat rejection,
and pressure drop through the condenser and water
valves (inlet and outlet) when using a cooling tower on
an ice machine.
• Water entering the condenser must not be lower
than 37°F (3°C) or exceed 90°F (32°C).
• Water flow through the condenser must not
exceed 5 gal. (19 L) per minute.
• Allow for a pressure drop of 7 psi (48 kPa)
between the condenser water inlet and the outlet
of the ice machine.
• Water exiting the condenser must not exceed
110°F (43°C).
12 Part Number 000007661 7/10
Heat of Rejection
!
Warning
RF MODELS
Model Heat of Rejection
RF0244 2,400 BTUH (605 Kcal/hr)
RF0266 2,400 BTUH (605 Kcal/hr)
RF0385 3,500 BTUH (882 Kcal/hr)
RF0388 3,500 BTUH (882 Kcal/hr)
RF0399 3,500 BTUH (882 Kcal/hr)
RF0300 3,500 BTUH (882 Kcal/hr)
RF0650 7,700 BTUH (1941 Kcal/hr)
RF1200 14,000 BTUH (3529 Kcal/hr)
RF2300 29,500 BTUH (7436 Kcal/hr)
RN MODELS
Series
Ice Machine
RN1000 - 50/60 Hz
RN1400 - 50 Hz
RN1400 - 60 Hz
1
The figure shown is an average.
Heat of Rejection
Air-Cooled Water-Cooled
11,300 BTU/hr
(2848 Kcal/hr)
16,000 BTU/hr
(4032 Kcal/hr)
15,500 BTU/hr
(3906 Kcal/hr)
1
1
12,800 BTU/hr
(3226 Kcal/hr)
16,400 BTU/hr
(4133 Kcal/hr)
15,500 BTU/hr
(3906 Kcal/hr)
Electrical Service
All wiring must conform to local, state and national
codes.
VOLTAGE
The maximum allowable voltage variation is ± 10% of
the rated voltage on the ice machine model/serial
number plate at compressor start-up.
Part Number 000007661 7/10 13
FUSE/CIRCUIT BREAKER
!
Warning
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).
The ice machine must be grounded in accordance
with national and local electrical codes.
GROUND FAULT INTERRUPTER CIRCUIT (GFIC)
A GFCI/GFI circuit protection is not recommended
with our equipment. If a GFCI/GFI is required by code
a GFCI/GFI breaker rather than outlet must be used to
avoid intermittent nuisance trips.
14 Part Number 000007661 7/10
Maintenance
!
Caution
!
Warning
Cleaning and Sanitizing
Maintenance procedures covered in this manual are
not covered by the warranty.
Use only Manitowoc approved Ice Machine
Cleaner (part number 000000084) and Sanitizer
(part number 9405653). 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 goggles (and/or
face shield) when handling ice machine Cleaner
or Sanitizer.
EXTERIOR CLEANING
Remove dust and dirt off exterior surfaces with mild
household dish-washing detergent and warm water.
Wipe dry with a clean, soft cloth.
Part Number 000007661 7/10 15
RF MODELS CLEANING/SANITIZING PROCEDURES
Cleaning/Sanitizing Procedure
This procedure must be performed once every month.
• 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
procedure must be discarded
Procedure to Clean/Sanitize
Use Ice Machine Cleaner part number 000000084.
Use Ice Machine Sanitizer part number 9405653.
Step 1 Remove front and top covers and set the
toggle switch to the OFF position.
Step 2 Remove all ice from the bin.
Step 3 Turn off the ice making water supply and drain
water from evaporator and reservoir.
Step 4 Remove the top cover from water reservoir.
Step 5 Follow the chart and premix cleaner and
water.
Amount of Water
1 gallon (4 Liters) 3 ounces (90 ml)
Amount of Cleaner
Part Number 000000084
16 Part Number 000007661 7/10
Step 6 Fill the evaporator and reservoir with cleaning
Prop Float Up to Prevent Low
Water Level Shutdown
solution.
Step 7 Move the toggle switch to the ON position.
The ice machine will make ice with the cleaning
solution and deposit the ice in the bin. Add the
remaining cleaner/water solution as the water level in
the reservoir drops.
NOTE: Do not allow the cleaner/water level to drop
below the minimum water level. The ice machine will
discontinue the cleaning cycle if the water float switch
opens.
Step 8 After all of the cleaner/water solution has
been added turn on the ice making water supply.
Continue the freeze cycle for 10 minutes to remove
the cleaning solution from the water circuit.
Part Number 000007661 7/10 17
Step 9 Place the toggle switch in the OFF position.
Step 10 Refer to disassembly for cleaning/sanitizing
and remove parts for hand cleaning/sanitizing.
• Hand clean all parts
• Rinse all parts with clear potable water
• Sanitize all parts - do not rinse after sanitizing
• Spray all interior bin surfaces with sanitizer (do not
rinse sanitized areas).
• Spray evaporator discharge spout
Step 11 Reassemble ice machine.
Step 12 Turn off the ice making water supply.
18 Part Number 000007661 7/10
Step 13 Refer to chart and premix water and
sanitizer.
Amount of Water Amount of Sanitizer
1 Gallons (4 L) Water 1/2 ounce (15 ml)
Step 14 Fill the evaporator and reservoir with
sanitizer/water solution.
Step 15 Move the toggle switch to the ON position.
The ice machine will make ice with the sanitizer/water
solution and deposit the ice in the bin. Add the
remaining sanitizer/water solution when the water
level in the reservoir drops.
NOTE: Do not allow the sanitizer/water level to drop
below the minimum water level. The ice machine will
discontinue the cleaning cycle if the water float switch
opens.
Step 16 After all of the sanitizer/water solution has
been added to the reservoir, turn on the ice making
water supply.
Step 17 Continue the freeze cycle for 30 minutes and
then discard all ice produced.
Part Number 000007661 7/10 19
Heavily Scaled Cleaning Procedure
Perform this procedure if you have some or all of these
symptoms.
• Excessive grinding, popping or squealing noises
from the evaporator
• Grinding noise from gearbox
• Ice machine trips speed sensor
NOTE: A Cleaning/Sanitizing Procedu re mu st be
performed after this procedure.
Procedure to Clean Heavily Scaled Flake Ice
Machines
Step 1 Remove front and top covers and set the
toggle switch to the OFF position.
Step 2 Remove all ice from the bin.
Step 3 Turn off the ice making water supply.
Step 4 Remove the top cover from water reservoir.
20 Part Number 000007661 7/10
Step 5 Refer to chart below:
Premix cleaner with lukewarm water in a
non-metallic container.
Mix Cleaner and Water
Use Ice machine nickel safe
cleaner, part number
000000084 only
Cleaner Water
Model
RF0244
RF0266
RF0385
RF0388
RF0399
Water
Reservoir
Capacity
14 oz (400 ml) 9 oz (266 ml) 5 oz (148 ml)
RF0300
RF0650
RF1200 34 oz (1 L) 23 oz (680 ml) 11 oz (325 ml)
RF2300 68 oz (2 L) 46 oz (1.3 L) 22 oz (650 ml)
17 oz (500 ml) 11 oz (325 ml) 6 oz (177 ml)
Step 6 Remove all water from the evaporator and
water reservoir. Add the entire cleaner/water solution
and re-install the reservoir cover.
Leave the cleaner/water solution in the evaporator
for a minimum of 4 hours.
Step 7 Remove all cleaner/water from the evaporator
and water reservoir.
Step 8 Follow the standard cleaning and sanitizing
procedures.
Part Number 000007661 7/10 21
RN MODELS CLEANING/SANITIZING PROCEDURE
Use Ice Machine Cleaner part number 000000084.
Use Ice Machine Sanitizer part number 94-0565-3.
Step 1 Remove all ice from the bin/dispenser.
Step 2 Remove front and top covers.
Step 3 Mix a solution of cleaner and water.
Amount of
Luke Warm Water
1 gallon (4 Liters) 4 ounces (120 ml)
Amount of Cleaner
Part Number 000000084
Step 4 To start a cleaning cycle, depress the CLEAN
switch to drain the water from the evaporator. Wait for
the LOW WATER light to energize.
Step 5 Remove cover from the cleaning cup and add
cleaner/water solution until the HI WATER light
energizes, then replace cleaning cup cover. The
machine will clean and then flush three times in
approximately twelve minutes.
Step 6 While the ice machine is in the clean cycle,
prepare for the sanitizing cycle by mixing a solution of
sanitizer and water.
Amount of
Luke Warm Water
1 gallon (4 L) Water 1/2 ounce (15 ml)
Amount of Sanitizer
Part Number 94-0565-3
Step 7 To start a sanitize cycle, depress the clean
switch to drain the water from the evaporator. Wait for
the LOW WATER light to energize.
Step 8 Remove cover from the cleaning cup and add
sanitizer/water solution until the HI WATER light
energizes, then replace cleaning cup cover. The
machine will sanitize and then flush three times in
approximately twelve minutes.
22 Part Number 000007661 7/10
Step 9 Press the OFF switch, then unscrew the ice
chute connector.
Step 10 Using disposable food service grade gloves
insert one dry sponge into the transport tube going to
the evaporator (NOT the tube going to the bin), then
insert one sponge soaked in the sanitizer water
solution. With the pusher tube supplied with the
sponge kit, push sponges all the way down the
transport tube 16 inches (41 cm) or the length of the
pusher tube.
Step 11 Reconnect chute connector and press the
ON switch. Allow the ice machine to run for 10
minutes, then press the OFF switch. Catch and
remove all sponges and ice from the bin/dispenser.
Step 12 Clean and sanitize the bin/dispenser:
• Disconnect power to the dispenser to prevent
injury.
• Use the cleaner and sanitizer ratios from the
charts on the previous page.
• Heavy accumulations of scale will require removal
of components for cleaning and sanitizing.
• Rinse parts with clear water after cleaning - do not
rinse parts after sanitizing.
Step 13 Spray all interior bin/dispenser surfaces with
sanitizer (do not rinse sanitized areas).
Step 14 Place rocker switch in the ON position and
reinstall all removed panels.
1. Lift out ice damper.
2. Remove ice deflector.
A. Remove the two thumbscrews.
Part Number 000007661 7/10 23
CLEANING THE CONDENSER
!
Warning
!
Warning
Disconnect electric power to the ice machine at the
electric service switch before cleaning the
condenser. The condenser fins are sharp. Use care
when cleaning them.
Air-Cooled Condenser
Clean the condenser at least every six months. Follow
the steps below.
1. Some models have a washable aluminum filter.
Clean the filter with a mild soap and water
solution.
2. Shine a flashlight through the condenser to check
for dirt between the fins. Blow compressed air
through the condenser fins from the inside or use
a commercial condenser coil cleaner. Follow the
directions and cautions supplied with the cleaner.
3. Straighten any bent condenser fins with a fin
comb.
4. Carefully wipe off the fan blades and motor with a
soft cloth. Do not bend the fan blades. If the fan
blades are excessively dirty, wash with warm,
soapy water and rinse thoroughly.
If you are cleaning the condenser fan blades with
water, cover the fan motor to prevent water damage.
24 Part Number 000007661 7/10
Removal from Service/Winterization
!
Caution
If water is allowed to remain in the ice machine in
freezing temperatures, severe damage to some
components could result. Damage of this nature is
not covered by the warranty.
Follow the procedure below.
1. Disconnect the electric power at the circuit
breaker or the electric service switch.
2. Turn off the water supply.
3. Disconnect and drain the incoming ice-making
water line at the rear of the ice machine.
4. Disconnect drain tubing and drain water into
container and discard.
5. Make sure water is not trapped in any of the water
or drain lines.
6. Water cooled - Use compressed air to remove all
water from the condenser.
Part Number 000007661 7/10 25
26 Part Number 000007661 7/10
This Page Intentionally Left Blan k
Operation
Ice Making Sequence of Operation
NOTE: Flake ice machines use an auger to remove
ice from the evaporator. Occasional noises (creaks,
groans, squeaks, or pops) are a normal part of the ice
making process.
SELF-CONTAINED AIR-COOLED RF0244/RF0266/RF0385/RF0388/RF0399
When the toggle switch is placed in the “ON” position
the following controls must be in the closed position
before the ice machine will start:
A. Bin Thermostat
B. Low Evaporator Temperature Thermostat
C. Low Water Level Switch
Placing the toggle switch in the ON position starts the
gear motor and refrigeration system. The float valve
controls the water inlet valve and water level. The
freeze cycle ends when ice contacts the bin
thermostat. The ice machine w ill restart when ice no
longer contacts the bin thermostat.
SELF-CONTAINED AIR-COOLED RF0300
When the toggle switch is placed in the “ON” position
the following controls must be in the closed position
before the ice machine will start:
A. Bin Thermostat
B. Low Evaporator Temperature Thermostat
C. Ice Chute Safety Switch
D. Low Water Level Switch
Placing the toggle switch in the ON position starts the
gear motor and a 10 minute compressor time delay.
The compressor starts and the float valve controls the
water inlet valve and water level. The freeze cycle
ends when ice contacts the bin thermostat. The ice
machine remains off until ice no longer contacts the
bin thermostat.
Part Number 000007661 7/10 27
SELF-CONTAINED AIR-COOLED RF0650/RF1200/RF2300
When the toggle switch is placed in the ON position
the following controls must be in the closed position
before the ice machine will start:
A. Bin Thermostat
B. High Pressure Cut-out Switch
C. Ice Chute Safety Switch
D. Low Pressure Switch
E. Low Water Level Switch
Placing the toggle switch in the ON position starts the
gear motor. After the rotation speed sensor verifies
10 minutes of correct rotation the time delay ends and
the compressor starts.The ice machine will continue to
make ice until ice contacts the bin thermostat. The ice
machine remains off until ice no longer contacts the
bin thermostat.
28 Part Number 000007661 7/10
QUIETQUBE REMOTE AIR-COOLED MODELS WITH REMOTE CONDENSING UNITS RF1200C/RF2300C
Part Number 000007661 7/10 29
SELF-CONTAINED AIR-COOLED & WATER-COOLED RN0400
NOTE: Ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans,
squeaks, or pops) are a normal part of the ice making
process.
Operation
The ice machine will not start until:
A. The compressor rocker switch is moved to
“ON”.
B. Ice does not contact the bin thermostat bulb.
C. The water reservoir is full of water.
With power supplied and the compressor rocker
switch in the ON position, the gear motor and
refrigeration system start. The float valve controls the
water inlet valve and water level. The freeze cycle
ends when ice contacts the bin thermostat. A
20 minute delay period initiates. The ice machine will
restart when ice no longer contacts the bin thermostat
and the 20 minute delay period expires.
30 Part Number 000007661 7/10
SELF-CONTAINED AIR-COOLED & WATER-COOLED RN1000/RN1400
NOTE: Ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans,
squeaks, or pops) are a normal part of the ice making
process.
Operation
The ice machine will not start until:
A. The rocker switch is moved to ON.
B. The transport tube shuttle switch is closed.
C. The water reservoir is full of water.
Placing the toggle switch in the ON position starts the
gear motor and refrigeration system. The water level
sensor controls the water inlet valve and water level.
The freeze cycle ends when ice contact opens the
transport tube switch. A 60 minute time delay period
initiates. The ice machine will restart when the ice
transport tube switch closes and the 60 minute time
delay period expires.
Flush Cycle
The ice machine will automatically flush the
evaporator.
The refrigeration system will shut down and the gear
motor will continue to run. After the flush is complete,
the machine will refill and start the refrigeration system
without a time delay.
Part Number 000007661 7/10 31
QUIETQUBE REMOTE AIR-COOLED MODELS WITH REMOTE CONDENSING UNITS RN1000C/RN1200C
NOTE: Ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans,
squeaks, or pops) are a normal part of the ice making
process.
Operation
The ice machine will not start until:
A. The rocker switch is moved to ON.
B. The transport tube switch is closed.
C. The water reservoir is full of water.
Placing the toggle switch in the ON position starts the
gear motor and energizes the liquid line solenoid
valve. The refrigerant pressure at the condensing unit
increases and the low pressure switch closes and
starts the refrigeration system. The water level sensor
controls the water inlet valve and water level. The
freeze cycle ends when ice contact opens the
transport tube switch. The liquid line solenoid valve
closes and the refrigerant pressure at the condensing
unit drops. The low pressure switch opens and turns
off the refrigeration system. A 60 minute time delay
period initiates. The ice machine will restart when the
ice transport tube switch closes and the 60 minute
time delay period expires.
32 Part Number 000007661 7/10
Ice Production/Quality Check
QUALITY CHECK
Ice quality varies with ambient and water
temperatures, and is measured by the amount of
water in the ice. Generally speaking, higher incoming
water temperature results in lower ice quality. Lower
water temperature results in higher ice quality.
ICE PRODUCTION CHECK
NOTE: Ice production checks that are within 10% of
the charted capacity are considered normal due to
variances in air and water temperatures. Actual
temperatures will seldom match the chart exactly.
1. Run the ice machine a minimum of 10 minutes to
allow the system to stabilize.
2. Catch the ice in a non-perforated container for
7 minutes and 12 seconds or for more accuracy
14 minutes and 24 seconds.
3. Weigh the container and ice, then deduct the
weight of the container.
4. Convert ounces to pounds.
5. Example: 3 lbs. 12 oz. converts to 3.75 lbs.
6. (12 oz. ÷ 16 oz. =.75 lb.)
7. Determine the 24-hour ice production capacity.
A. 7 minutes 12 seconds = Multiply the total ice
weight by 200.
B. 14 minutes 24 seconds = Multiply the total ice
weight by 100.
Part Number 000007661 7/10 33
Thermostat Settings
1
2
3
4
5
6
7
1
2
3
4
5
6
7
Bin Thermostat
Small Numbers = Less ice in bin
Large Numbers = More ice in bin
Start at Chart Setting, then adjust as
required
Evaporator Low Temperature
Safety Thermostat
Refer to chart for setting
Incorrect settings will cause ice machine to
shut off prematurely
RF MODELS
Bin Thermostat:
The bin thermostat sensing bulb is located in the ice
chute on modular models and in the bin thermostat
holder on the right side of the bin on self storage
models. The bin thermostat turns the ice machine on
and off as the level of ice in the bin changes. Use the
initial setting from the chart and adjust as required.
Evaporator Low Temperature Safety Thermostat:
The evaporator low temperature safety thermostat
protects the ice machine if the evaporator temperature
is too cold. Refer to chart for correct setting.
34 Part Number 000007661 7/10
Thermostat Setting Chart
Model
RF0244 5 5
RF0266 5 5
RF0388 5 7
RF0399 5 7
RF0300 4 7
RF0650 4 N/A
RF1200 5 N/A
RF2300 5 N/A
Bin Thermostat
Setting
Evaporator
Thermostat Setting
Part Number 000007661 7/10 35
36 Part Number 000007661 7/10
Troubleshooting
Electrical Flowcharts
Diagnostic troubleshooting for the ice machine
involves following flowcharts that are dependant on
symptoms of the failed machine.
Follow the flowcharts for the failure symptom and
model you are working on.
NOTE: Refer to the sequence of operation to
determine where in the sequence the ice machine has
failed. An example would be an ice machine that
energizes the gear motor, but the compressor does
not energize. Following the electrical flowchart will
quickly and easily eliminate non issues.
Part Number 000007661 7/10 37
38 Part Number 000007661 7/10
Power Supplied to Ice
Machine?
Toggle Switch In ON
Position?
Move Switch To ON Position
Plug In Ice Machine, Reset BreakerNO
YES
NO
YES
Electrical Flowchar t – RF0244/RF0266/5)RF0388/RF0399 Air & Water
Switch Illuminated?
NO
YES
Replace Switch
RF0244/RF0266RF0385//RF00388/RF0399 AIR & WATER
Part Number 000007661 7/10 39
YES
Bin Thermostat
Closed?
NO
Replace Thermostat
Ice Contacting
Thermostat?
Remove Ice - Allow
To Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
Yes
No No
Yes
Evaporator Safety
Thermostat Closed?
NO
Evaporator Cold?
Replace Thermostat
Allow Evaporator To
Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
Yes
No
No
Yes
YES
YES
40 Part Number 000007661 7/10
Low Water Level
Switch Closed?
YES
YES
NO
Reservoir Full Of
Water?
NO
Restore Water Supply / Replace Water Inlet Valve
Power To Water
Inlet Valve?
Yes
Water Level
Switch Closed?
No
No
Repair WiringYes
YES
Replace Switch or Float Assembly
Replace Switch or Float Assembly
Part Number 000007661 7/10 41
Wiring From
Gearmotor Intact?
Line Voltage To
Compressor Relay
Coil?
Gear Motor Runs? NO
YES
NO
YES
Line Voltage To
Gear motor?
Repair WiringNo
Remove Auger
From Evaporator
Ice In Evaporator?
Gear Motor Runs?
Replace Gear Motor
Yes
No
Rebuild
Evaporator
Thaw Evaporator
Yes
Yes
No
Replace Gear Motor
Repair Wiring
Yes
No
42 Part Number 000007661 7/10
Relay Closed?
Line Voltage To
Compressor?
YES
YES
NO
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Fan Cycling Control Functions
Condenser Fan Motor Functions
Water cooled only:
Water Regulating Valve Functions
Repair Wiring
Replace Relay
Part Number 000007661 7/10 43
Power Supplied to Ice
Machine?
Toggle Switch In ON
Position?
Move Switch To ON Position
Plug In Ice Machine, Reset Breaker
NO
YES
NO
YES
Electrical Flowchart – RF0300 Air & Water
Switch Illuminated?
NO
YES
Replace Switch
RF0300 AIR & WATER
44 Part Number 000007661 7/10
Bin Thermostat
Closed?
NO
Replace Thermostat
YES
Evaporator Safety
Thermostat Closed?
NO
Chute Switch
Closed?
NO
YES
Ice Contacting
Thermostat?
Remove Ice - Allow
To Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
Yes
No No
Yes
Evaporator Cold?
Replace Thermostat
Allow Evaporator To
Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
Yes
No
No
Yes
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace Switch
Yes
No No
Yes
Yes
Yes
Part Number 000007661 7/10 45
Low Water Level
Switch Closed?
YES
YES
NO
Reservoir Full Of
Water?
NO
Restore Water Supply / Replace Water Inlet Valve
Replace Switch or Float Assembly
Power To Water
Inlet Valve?
Yes
Water Level
Switch Closed?
No
No
Repair WiringYes
YES
Replace Switch or Float Assembly
46 Part Number 000007661 7/10
Gear Motor Runs? NO
YES
Line Voltage To
Gear motor?
Repair WiringNo
Disconnect
Evaporator From
Gear Motor
Ice In Evaporator?
Gear Motor Runs?
Replace Gear Motor
Yes
No
Rebuild
Or
Replace Evaporator
Thaw Evaporator
Yes
Yes
No
Yes
Gear Motor
Centrifugal Switch
Closed?
Line Voltage To
Compressor Time
Delay?
NO
Repair Wiring
Replace Gear Motor
Yes
No
YES
Part Number 000007661 7/10 47
Contactor Closed?
Line Voltage To
Compressor?
YES
YES
NO
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Fan Cycling Control Functions
Condenser Fan Motor Functions
Water cooled only:
Water Regulating Valve Functions
Repair Wiring
Replace Contactor
Line Voltage To
Compressor Contactor
Coil?
NO
Repair Wiring
Replace Time Delay Relay
No
10 Minute Time
Delay Expired?
NO
Wait 10 Minutes - Do Not Install
Compressor Time Delay Jumper
Yes
Power To Contactor Coil?
Yes
Install
Compressor Time
Delay Jumper
Yes
48 Part Number 000007661 7/10
Power Supplied to Ice
Machine?
Toggle Switch In ON
Position?
Move Switch To ON Position
Plug In Ice Machine, Reset Breaker
NO
YES
NO
YES
Electrical Flowchart - RF0650/RF1200 Air & Water
Switch Illuminated?
NO
YES
Replace Switch
RF0650/RF1200 AIR & WATER
Part Number 000007661 7/10 49
Bin Thermostat
Closed?
NO
Replace Thermostat
YES
Low Pressure
Control Closed?
NO
YES
Ice Contacting
Thermostat?
Remove Ice - Allow
To Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
Yes
No No
Yes
Evaporator Cold?
Replace LPCO
Allow Evaporator To
Warm And Retest
Refrigerant Pressure
Below Cut-out?
Repair Refrigerant Leak,
Evacuate, Recharge
Yes
No
No
Yes
Yes
High Pressure
Control Closed?
NO
YES
Resets?
Replace HPCO
Clean Condenser,
Check Fan Motor
Check Fan Cycle Control
Refrigerant Pressure
Above Cut-out?
Clean Condenser,
Check Fan Motor,
Check FCC & Refrigeration System
Resets
&
Trips
No
No
Yes
50 Part Number 000007661 7/10
Low Water Level
Switch Closed?
YES
NO
Reservoir Full Of
Water?
NO
Restore Water Supply / Replace Water Inlet Valve
Replace Switch or Float Assembly
Power To Water
Inlet Valve?
Yes
Water Level
Switch Closed?
No No
Repair WiringYes
YES
Replace Switch or Float Assembly
Chute Switch
Closed?
NO
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace Switch
Yes
No No
Yes
Yes
YES
Part Number 000007661 7/10 51
Gear Motor Runs? NO
YES
Line Voltage To
Gear motor?
Repair Wiring
No
Disconnect
Evaporator From
Gear Motor
Ice In Evaporator?
Gear Motor Runs?
Replace Gear Motor
Yes
No
Rebuild
Or
Replace Evaporator
Thaw Evaporator
Yes
Yes
No
Yes
YES
10 Minute Time
Delay Expired?
NO
Wait 10 Minutes - Do Not Install
Compressor Time Delay Jumper
52 Part Number 000007661 7/10
Contactor Closed?
Line Voltage To
Compressor?
YES
YES
NO
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Fan Cycling Control Functions
Condenser Fan Motor Functions
Water cooled only:
Water Regulating Valve Functions
Repair Wiring
Replace Contactor
Line Voltage To
Compressor Contactor
Coil?
NO
Repair Wiring
Replace Rotation Sensor/Time Delay Relay
No
Yes
Power To Contactor Coil?
Yes
Install
Compressor Time
Delay Jumper
Part Number 000007661 7/10 53
Power Supplied
to Ice Machine?
Toggle Switch In
ON Position?
Move Switch To ON Position
Restore Power, Reset BreakerNO
NO
YES
Electrical Flowchart – RF2300 Air & Water
Switch
Illuminated?
NO
YES
Replace Switch
Immediately
Trips?
Yes
Ohm Compressor
Crankcase Heater
And Toggle Switch
Yes
No
Toggle Switch In
Off Position?
Isolate And Ohm Each
Component - Then Each
Wire If Required
Yes
No
Trips
RF-2300 AIR & WATER
54 Part Number 000007661 7/10
Bin Thermostat
Closed?
NO
Replace Thermostat
YES
YES
Ice Contacting
Thermostat?
Remove Ice - Allow
To Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
Yes
No No
Yes
Yes
High Pressure
Control Closed?
NO Resets?
Replace HPCO
Clean Condenser,
Check Fan Motor
Check Fan Cycle Control
Refrigerant Pressure
Above Cut-out?
Clean Condenser,
Check Fan Motor,
Check FCC & Refrigeration System
Resets
&
Trips
No
No
Yes
Left Side Chute
Switch Closed?
NO
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace Switch
Yes
No No
Yes
Yes
Part Number 000007661 7/10 55
Low Pressure
Control Closed?
NO
Evaporator Cold?
Replace LPCO
Allow Evaporator To
Warm And Retest
Refrigerant Pressure
Below Cut-out?
Repair Refrigerant Leak,
Evacuate, Recharge
Yes
No
No
Yes
Right Side Chute
Switch Closed?
NO
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace Switch
Yes
No No
Yes
YES
YES
Reservoir Full Of
Water?
NO
Restore Water Supply / Replace Water Inlet Valve
Power To Water
Inlet Valve?
Yes
Water Level
Switch Closed?
No No
Repair WiringYes
Replace Switch or Float Assembly
Yes
56 Part Number 000007661 7/10
Gear Motor Runs? NO
YES
Line Voltage To
Gear motor?
Repair WiringNo
Disconnect
Evaporator From
Gear Motor
Ice In Evaporator?
Gear Motor Runs?
Replace Gear Motor
Yes
No
Rebuild
Or
Replace Evaporator
Thaw Evaporator
Yes
Yes
No
YES
10 Minute Time
Delay Expired?
NO
Wait 10 Minutes - Do Not Install
Compressor Time Delay Jumper
Low Water Level
Switch Closed?
NO
Replace Switch or Float Assembly
YES
Yes
Part Number 000007661 7/10 57
YES
NO
Replace Relay
Line Voltage To
Left Delay Relay Coil?
NO
Repair Wiring
Replace Left Rotation
Sensor/Time Delay
No
Power To Left Time
Delay Relay Coil?
Install
Compressor Time
Delay Jumper On
Left Evaporator
Left Delay Relay
Contacts Closed?
Left Delay Relay
Contacts Closed?
Yes
No Yes
YES
NO
Replace Relay
Line Voltage To
Right Delay Relay Coil?
NO
Repair Wiring
Replace Right Rotation
Sensor/Time Delay
No
Power To Right Time
Delay Relay Coil?
Install
Compressor Time
Delay Jumper On
Right Evaporator
Right Delay Relay
Contacts Closed?
Right Delay Relay
Contacts Closed?
Yes
No Yes
YES
YES
YES
58 Part Number 000007661 7/10
Contactor Closed?
Line Voltage To
Compressor?
YES
YES
NO
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Fan Cycling Control Functions
Condenser Fan Motor Functions
Water cooled only:
Water Regulating Valve Functions
Repair Wiring
Replace Contactor
Line Voltage To
Compressor Contactor
Coil?
NO Repair Wiring
Yes
Part Number 000007661 7/10 59
60 Part Number 000007661 7/10
YES
Electrical Flowchart – RN100051 Air & Water
YES
Control Board
PWR Light On?
Replace Control Board
NO
Power Supplied to Ice
Machine Control board?
Turn On Switch
NO
YES
NO
Control Board CPU
Light Flashing?
Rocker Switch in ON
position?
NO
Plug In Ice Machine, Reset Breaker
YES
Remove & Restore Line
Voltage, Then Depress
Reset Button On Control
Board
Power Light Off
Test Run & Verify OperationPower Light On
RN1000/RN1400 AIR & WATER
Part Number 000007661 7/10 61
YES
Low Bin Light On?
YES
Ice Holding
Shuttle Open?
Check Wiring, Repair Or Replace
Repair Or Replace Shuttle
Yes
Time Delay Light OFF?
Time Delay
Period Expired?
Wait For Delay To ExpireNO
Clear Ice
Shuttle in up
position?
NO
NO
YES
YES
NO
NO
YES
Light On Sensor
Illuminated?
NO
Depress Reset Button On Control Board
Replace Control Board If Required
YES
62 Part Number 000007661 7/10
Purge Light Off? NO
Purge Rocker Switch
In Off Position?
YES
NO
YES
YES
Move Switch To Off Position
Clear Drain Or Replace Drain Solenoid
YES
No
Water Drains From
Evaporator?
Replace Control Board
Level Ice Machine To Allow Complete Drainage
Line Voltage At
Drain Solenoid?
Ice Machine Level?
Remove & Restore Line
Voltage, Then Depress
Reset Button On Control
Board
No Power @ Solenoid
YES
Power @ Solenoid
NO
Test Run To Verify OperationYES
NO
Part Number 000007661 7/10 63
Drain Clog
Light Off?
NO Water In Drain Trough? YES
YES
YES
Replace Sensor
High Pressure
Light Off?
Clean and Dry
Drain Sensor
Light On
Light Off
Clear Drain
Test Run To Verify Operation
NO
YES
Verify:
Clearances & Ambient Are OK
Filter & Condenser Are Clean
Condenser Fan Motor Functions
Replace High Pressure Cut Out
Water cooled Models:
Water Regulating Valve Functions
NO
Press Control Board Reset
Button To Clear Error
YES
Disconnect
Sensor From
Control Board
Replace Control BoardLight On
Light Off
64 Part Number 000007661 7/10
YES
HI AMPS Light Off?
Yes
Reset Breaker - Press Control Board
Reset Button To Clear Error
Circuit Breaker On
Control Box Tripped?
YES
NO
Line Voltage To
Gear Motor?
NO
NO
Press Control
Board Reset Button To
Clear Error
Replace Control
Board
NO
Gear Motor Runs?
YES
Clean Ice Machine - Install Water Filter - Increase
Cleaning Frequency -Verify Shuttle Shuts Off Ice
Machine – Test Run
Check Wires & Connections
Replace Gear Motor
NO
YES
Part Number 000007661 7/10 65
Low Water
Light Off?
NO
YES
Yes
Sensor Wires
Connected?
Reservoir Full
Of Water?
Connect Sensor Wires
Clean and
Dry Water
Level Probes
Water is Supplied?
Voltage @ Water
Inlet Valve?
NO
YES
YES
NO
Restore Water SupplyNO
YES
Replace Water Inlet ValveYESNO
Voltage @ Water
Inlet Valve?
YES
Reservoir Full
Of Water?
YES NO
Replace Control BoardNO
Press Control Board Reset Button
To Clear Error
YES
66 Part Number 000007661 7/10
High Water
Light Off?
NO
YES
Yes
Control Board
Sending Line Voltage To
Water Valve?
Press Control Board Reset Button
Replace Control Board
Clean, Dry &
Reinsert Water
Level Probes
Voltage @ Water
Inlet Valve?
YES
NO
Replace Water Inlet ValveNO
YES
Replace Sensor – Control Board if RequiredWater Flows
Water Flow Stops Press Control Board Reset Button To Clear Error
Gear Motor
Running?
YES
See Step
HI AMPS LIGHT OFF
NO
Part Number 000007661 7/10 67
Compressor
Running?
NO
YES
Yes
Ice Has Excessive
Water Content?
YES
NO
Verify Water Inlet Valve Closes 100% & Water Level Probe Functions
Replace Control BoardNO
YES
Line Voltage At
Compressor?
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Compressor Windings Are OK
Repair Wiring
Compressor
Running?
NO
Test Run To Verify Operation
YES
Line Voltage @
Control Board Compressor
Terminals
68 Part Number 000007661 7/10
YES
YES
Control Board
PWR Light On?
Replace Control Board
NO
Power Supplied to Ice
Machine Control board?
Turn On Switch
NO
YES
NO
Control Board CPU
Light Flashing?
Rocker Switch in ON
position?
NO
Plug In Ice Machine, Reset Breaker
YES
Remove & Restore Line
Voltage, Then Depress
Reset Button On Control
Board
Power Light Off
Test Run & Verify OperationPower Light On
Electrical Flowcart – RN1000&51& QuietQube Remote
RN1000C/RN1200C QUIETQUBE REMOTE CONDENSING
Part Number 000007661 7/10 69
YES
Low Bin Light On?
YES
Ice Holding
Shuttle Open?
Check Wiring, Repair Or Replace
Repair Or Replace Shuttle
Yes
Time Delay Light OFF?
Time Delay
Period Expired?
Wait For Delay To ExpireNO
Clear Ice
Shuttle in up
position?
NO
NO
YES
YES
NO
NO
YES
Light On Sensor
Illuminated?
NO
Depress Reset Button On Control Board
Replace Control Board If Required
YES
70 Part Number 000007661 7/10
Purge Light Off? NO
Purge Rocker Switch
In Off Position?
YES
NO
YES
YES
Move Switch To Off Position
Clear Drain Or Replace Drain Solenoid
YES
No
Water Drains From
Evaporator?
Replace Control Board
Level Ice Machine To Allow Complete Drainage
Line Voltage At
Drain Solenoid?
Ice Machine Level?
Remove & Restore Line
Voltage, Then Depress
Reset Button On Control
Board
No Power @ Solenoid
YES
Power @ Solenoid
NO
Test Run To Verify OperationYES
NO
Part Number 000007661 7/10 71
Drain Clog
Light Off?
NO Water In Drain Trough? YES
YES
YES
Replace Sensor
High Pressure
Light Off?
Clean and Dry
Drain Sensor
Light On
Light Off
Clear Drain
Test Run To Verify Operation
NO
YES
Verify:
Clearances & Ambient Are OK
Condenser Is Clean
Condenser Fan Motor Functions
Replace High Pressure Cut Out
NO
Press Control Board Reset
Button To Clear Error
YES
Disconnect
Sensor From
Control Board
Replace Control BoardLight On
Light Off
72 Part Number 000007661 7/10
YES
HI AMPS Light Off?
YES
Reset Breaker - Press Control Board
Reset Button To Clear Error
Circuit Breaker On
Control Box Tripped?
YES
NO
Line Voltage To
Gear Motor?
NO
NO
Press Control
Board Reset Button To
Clear Error
Replace Control
Board
NO
Gear Motor Runs?
YES
Clean Ice Machine - Install Water Filter - Increase
Cleaning Frequency -Verify Shuttle Shuts Off Ice
Machine – Test Run
Check Wires & Connections
Replace Gear Motor
NO
YES
Part Number 000007661 7/10 73
Low Water
Light Off?
NO
YES
YES
Sensor Wires
Connected?
Reservoir Full
Of Water?
Connect Sensor Wires
Clean and
Dry Water
Level Probes
Water is Supplied?
Voltage @ Water
Inlet Valve?
NO
YES
YES
NO
Restore Water SupplyNO
YES
Replace Water Inlet ValveYESNO
Voltage @ Water
Inlet Valve?
YES
Reservoir Full
Of Water?
YES NO
Replace Control BoardNO
Press Control Board Reset Button
To Clear Error
YES
74 Part Number 000007661 7/10
High Water
Light Off?
NO
YES
YES
Control Board
Sending Line Voltage To
Water Valve?
Press Control Board Reset Button
Replace Control Board
Clean, Dry &
Reinsert Water
Level Probes
Voltage @ Water
Inlet Valve?
YES
NO
Replace Water Inlet ValveNO
YES
Replace Sensor – Control Board if RequiredWater Flows
Water Flow Stops Press Control Board Reset Button To Clear Error
Gear Motor
Running?
YES
See Step
HI AMPS LIGHT OFF
NO
Part Number 000007661 7/10 75
Compressor
Running?
NO
YES
YES
Replace Control BoardNO
YES
Line Voltage At
Liquid Line Solenoid
Valve?
YES
NO
Verify:
Refrigerant Pressure is Higher Than LPCO Cut-in
Both Shut-off Valves are Open
Repair/Replace Liquid Line Solenoid
Locate and Repair Refrige rant Leak
Replace LPCO Switch
Repair Wiring
Low Pressure
Control Closed?
NO
YES
Line Voltage @
Control Board Compressor
Terminals
76 Part Number 000007661 7/10
YES
YES
Repair WiringNO
YES
Line Voltage At
Compressor?
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Compressor Windings Are OK
Repair Wiring
Compressor
Running?
NO
Test Run To Verify OperationYES
Contactor Coil Has Line
Voltage?
Contactor Closed?
YES
Replace ContactorNO
Part Number 000007661 7/10 77
Ice Has Excessive
Water Content?
YES
NO
Verify Water Inlet Valve Closes 100% & Water Level Probe Functions
Test Run To Verify Operation
ELECTRILOWCHART - /
78 Part Number 000007661 7/10
Power Supplied
to Ice Machine?
Toggle Switch In
ON Position?
Move Switch To ON Position
Restore Power, Reset BreakerNO
NO
YES
Electrical Flowchart - RF-1200C QuietQube
Switch
Illuminated?
NO
YES
Replace Switch
Immediately
Trips?
YES
YES
NO
Toggle Switch In
Off Position?
Isolate And Ohm Each
Component - Then Each
Wire If Required
NO
TRIPS
YES
Isolate And Ohm Switch
Check Wiring From Panel
Test Run
YES
RF1200C QUIETQUBE
Part Number 000007661 7/10 79
Bin Thermostat
Closed?
NO
Replace Thermostat
YES
Ice Contacting
Thermostat?
Remove Ice - Allow
To Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
YES
NO NO
YES
YES
Chute Switch
Closed?
NO
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace SwitchYES
NO NO
YES
Yes
YES
Reservoir Full Of
Water?
NO
Restore Water Supply / Replace Water Inlet Valve
Power To Water
Inlet Valve?
YES
Water Level
Switch Closed?
NO NO
Repair Wiring
Replace Switch or
Float Assembly
YES
80 Part Number 000007661 7/10
Low Water Level
Switch Closed?
NO
Replace Switch or
Float Assembly
Gear Motor Runs? NO
Line Voltage To
Gear motor?
Repair WiringNO
Disconnect
Evaporator From
Gear Motor
Gear Motor
Runs?
Replace Gear Motor
YES
NO
YES
YES
Ice In
Evaporator?
Rebuild
Or
Replace Evaporator
Thaw EvaporatorYES
NO
YES
YES
YES
10 Minute Time
Delay Expired?
NO
Wait 10 Minutes - Do Not Install
Compressor Time Delay Jumper
Part Number 000007661 7/10 81
YES
NO
Replace Relay
NO
Repair Wiring
Replace Rotation
Sensor/Time Delay
NO
Power To Left Time
Delay Relay Coil?
Install
Compressor Time
Delay Jumper On
Left Evaporator
Delay Relay Contacts
Closed?
Delay Relay Contacts
Closed?
Yes
NO
YES
YES
Line Voltage To
Left Delay Relay Coil?
YES
Replace Relay
82 Part Number 000007661 7/10
Low Pressure
Control Closed?
Line Voltage At
Liquid Line Solenoid
Valve?
NO
NO
YES
Verify:
Refrigerant Pressure is Higher Than
LPCO Cut-in
Both Shut-off Valves are Open
Repair/Replace Liquid Line Solenoid
Locate and Repair Refrigerant Leak
Replace LPCO Switch
Replace Relay
YES
High Pressure
Control Closed?
NO Resets?
Replace HPCO
Clean Condenser,
Check Fan Motor
Check Fan Cycle Control
Refrigerant Pressure
Above Cut-out?
Clean Condenser,
Check Fan Motor,
Check Fan Cycle Control &
Refrigeration System
Resets
&
Trips
NO NO
YES
NO
Line Voltage To
Compressor
Contactor Coil?
YES
YES
YES
Repair Wiring
Part Number 000007661 7/10 83
Contactor
Closed?
NO
Replace Contactor
Line Voltage To
Compressor?
YES
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Fan Cycling Control Functions
Condenser Fan Motor Functions
Repair Wiring
YES
84 Part Number 000007661 7/10
Power Supplied
to Ice Machine?
Toggle Switch In
ON Position?
Move Switch To ON Position
Restore Power, Reset BreakerNO
NO
YES
Electrical Flowchart - RF-2300C QuietQube
Switch
Illuminated?
NO
YES
Replace Switch
Immediately
Trips?
YES
YES
Toggle Switch In
Off Position?
Isolate And Ohm Each
Component - Then Each
Wire If Required
NO
TRIPS
YES
Isolate And Ohm Switch
Check Wiring From Panel
YES
NO
Test Run
RF2300C QUIETQUBE
Part Number 000007661 7/10 85
Bin Thermostat
Closed?
NO
Replace Thermostat
YES
Ice Contacting
Thermostat?
Remove Ice - Allow
To Warm And Retest
Adjusting Closes
Thermostat?
Verify New Setting Cycles
Machine On/Off
YES
NO NO
YES
YES
Left Side Chute
Switch Closed?
NO
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace Switch
YES
NO NO
YES
YES
Right Side Chute
Switch Closed?
NO
Adjust Or Replace
Actuator
Ice Contacting
Actuator?
Remove Ice And
Retest
Actuator Functions?
Replace Switch
YES
NO NO
YES
YES
86 Part Number 000007661 7/10
YES
Reservoir Full Of
Water?
NO
Restore Water
Supply / Replace
Water Inlet Valve
Power To Water
Inlet Valve?
YES
Water Level
Switch Closed?
NO NO
Repair WiringYES
Replace Switch or Float Assembly
Low Water Level
Switch Closed?
NO Replace Switch or Float Assembly
YES
Do Both Gear
Motors Run?
NO
Line Voltage To
Gear motors?
Repair WiringNO
Disconnect
Evaporator From
Gear Motor
Gear Motor
Runs?
Replace Gear Motor
YES
NO
YES
YES
Ice In
Evaporator?
Rebuild
Or
Replace Evaporator
Thaw Evaporator
YES
NO
YES
Part Number 000007661 7/10 87
YES
10 Minute Time
Delay Expired?
NO
Wait 10 Minutes - Do Not Install
Compressor Time Delay Jumper
Yes
YES
NO
Replace Relay
NO
Repair Wiring
Replace Left Rotation
Sensor/Time Delay
No
Power To Left Time
Delay Relay Coil?
Install
Compressor Time
Delay Jumper On
Left Evaporator
Left Delay Relay
Contacts Closed?
Left Delay Relay
Contacts Closed?
Yes
No Yes
YES
Line Voltage To
Left Delay Relay Coil?
88 Part Number 000007661 7/10
NO
Replace Relay
Replace Right Rotation
Sensor/Time Delay
Right Delay Relay
Contacts Closed?
Right Delay Relay
Contacts Closed?
YES
Line Voltage To
Right Delay Relay Coil?
NO
Repair Wiring
NO
Power To Right Time
Delay Relay Coil?
Install
Compressor Time
Delay Jumper On
Right Evaporator
YES
YES
YES
YES
Replace Relay
NO
Part Number 000007661 7/10 89
Replace Relay
Line Voltage To
Compressor
Contactor Coil?
YES
Low Pressure
Control Closed?
Line Voltage At
Liquid Line Solenoid
Valve?
NO
NO
YES
Verify:
Refrigerant Pressure is Higher Than LPCO
Cut-in Both Shut-off Valves are Open
Repair/Replace Liquid Line Solenoid Locate
and Repair Refrigerant Leak
Replace LPCO Switch
YES
High Pressure
Control Closed?
Resets?
Replace HPCO
Clean Condenser,
Check Fan Motor
Check Fan Cycle Control
Refrigerant Pressure
Above Cut-out?
Resets
&
Trips
NO NO
YES
NO
NO
Clean Condenser,
Check Fan Motor,
Check Fan Cycle Control &
Refrigeration System
YES
YES
Repair Wiring
90 Part Number 000007661 7/10
Contactor
Closed?
NO
Replace Contactor
Line Voltage To
Compressor?
YES
YES
NO
Verify:
Compressor Overload is Closed
Start Components Function
Fan Cycling Control Functions
Condenser Fan Motor Functions
Repair Wiring
YES
Part Number 000007661 7/10 91
Capillary Tube Models
If the gear motor and/or compressor are not energized refer to Electrical Troubleshooting
Refer to Operational Pressure Charts for normal pressures and temperatures
Discharge Pressure Low High High Low
Suction Pressure Low High High Low
Evaporator Inlet Temperature Normal Low High Low
Evaporator Outlet Temperature High Normal High Low
Compressor Discharge Line Temperature
Normal Range =
> 165° @ 70° - 210° @ 110°
> 74°C @ 21°C - 99°C @ 43°C)
Low on
Refrigerant
High
Increases with
run time
Overcharge of
Refrigerant
Normal
Non Condensable
in System
High
Increases with
run time
Restricted Capillary
Tube
High
Increases with
run time
92 Part Number 000007661 7/10
Thermostatic Expansion Valve Models
If the gear motor and/or compressor are not energized refer to Electrical Troubleshooting
Refer to Operational Pressure Charts for normal pressures and temperatures
Low on
Refrigerant
Discharge Pressure Low High High Low High
Suction Pressure Low High High Low High
Evaporator Inlet
Temperature
Evaporator Outlet
Temperature
Discharge Line
Temperature
Normal
High Normal High
High Normal
Overcharge
of
Refrigerant
Normal or
Low
Non
Condensable In
System
High Normal Normal or High
High
Increases With
Run Time
Liquid Line Restriction,
Suction Line Restriction,
Or TXV Starving
High > 12° Differential
between Inlet and Outlet
High
Increases With
Run Time
Flooding TXV or
Loose Sensing
< 10° Differential
between Inlet and
Decreases With
Bulb
Outlet
Low
Run Time
Component Specifications
BIN THERMOSTAT
Setting Cut-Out Cut-In
5
37°F ±1
6°C ±.1
LOW TEMPERATURE THERMOSTAT
(Evaporator safety thermostat)
(RF0244/RF0266/RF0385/RF0388/RF0399/RF0300
ONLY)
Setting Cut-Out Cut-In
5
37°F ±1
6°C ±.1
HIGH PRESSURE CUTOUT (HPCO) CONTROL
Model Cut-Out Cut-In
RF0650/
RF1200/RF2300
RN1000/RN1400
RN1000C/RCU1075
RN1200C/RCU1275
RF1200C/RCU1275
RF2300C/RCU2375
435 psig ±10
(3000 kPa ±69)
30 bar ±.69
425 psig ±10
(2930 kPa ±69)
29 bar ±.69
450 psig ±10
(3100 kPa ±69)
31 bar ±.69
450 psig ±10
(3100 kPa ±69)
31 bar ±.69
43°F ±1
3°C ±.1
43°F ±1
3°C ±.1
Manual Reset
287 psig ±10
(1979 kPa ±69)
19.79bar ±.69
Auto Reset
295 psig ±10
(2034 kPa ±69)
20 bar ±.69
Auto Reset
Manual Reset
Part Number 000007661 7/10 93
LOW PRESSURE CUTOUT (LPCO) CONTROL
Model Cut-Out Cut-In
R0F650/
RF1200
RF2300
RN1000C/RCU1075
RN1200C/RCU1275
RF1200C/RCU1275
RF2300C/RCU2375
7 psig ±2
(.5 bar ±.2)
12 psig ±2
(.8 bar ±.2)
12 psig ±3
(.8 bar ±.2)
36 psig ±2
(2.5 bar ±.2)
Manual Reset
35 psig ±5
(2.4 bar ±.4)
FAN CYCLE CONTROL
Model Cut-Out (Open) Cut-In (Close)
RF0244
RF0266
RF0385
RF0388
RF0399
RF0300 60 hz
RF0300 50 hz
RF0650 60 hz
RF0650 50 hz
RF1200 60 hz
RF1200 50 hz
RF2300
230±5
(16 bar ±.34)
230±5
(16 bar ±.34)
260 ±5
(18.1 bar ±.34)
260 ±5
(18.1 bar ±.34)
260 ±5
(18.1 bar ±.34)
260 ±5
(17.8 bar ±.34)
260 ±5
(17.8 bar ±.34)
230 ±5
(16 bar ±.34)
215 ±5
(14.8 bar ±.34)
260 ±5
(17.8 bar ±.34)
240 ±5
(16.6 bar ±.34)
250 ±5
(17.2 bar ±.34)
250 ±5
(17.2 bar ±.34)
250 ±5
(17.2 bar ±.34)
280 ±5
(19.3 bar ±.34)
280 ±5
(19.3 bar ±.34)
280 ±5
(19.3 bar ±.34)
275 ±5
(16.6 bar ±.34)
280 ±5
(19 bar ±.34)
250 ±5
(17.2 bar ±.34)
230 ±5
(16 bar ±.34)
275 ±5
(19 bar ±.34)
260 ±5
(17.8 bar ±.34)
265 ±5
(18.4 bar ±.34)
94 Part Number 000007661 7/10
FILTER-DRIERS
Important
The size of the filter-drier is important. The refrigerant
charge is critical. Using an improperly sized filter-drier
will cause the ice machine to be improperly charged
with refrigerant.
Driers are covered as a warranty part. The drier
must be replaced any time the system is opened for
repairs.
SUCTION CLEANUP FILTER-DRIER
Contaminated systems must have a suction line filterdrier installed to remove contamination. An access
valve must be installed on the inlet side of the suction
filter to allow pressure drop readings to be obtained.
Suction Line Clean-Up Filter
Model Drier Size
All Models UK-165S 5/8 in.
End
Connection
Size
Part Number 000007661 7/10 95
T OTAL SYSTEM REFRIGERANT CHARGE
Important
This information is for reference only. Refer to the
ice machine serial number tag to verify the system
charge. Serial plate information overrides
information listed on this page.
Model Refrigerant Charge
RF0244A 7.5 oz / 210 g
RF0266A 7.5 oz / 210 g
RF0385A 11.25 oz / 320 g
RF0388A 11.25 oz / 320 g
RF0399A 11.25 oz / 320 g
RF0300A 11.25 oz / 320 g
RF0650A 19.5 oz / 550 g
RF1200A 24.75 oz / 700 g
RF1200W 16.25 oz / 460 g
RF1200C 156 oz / 4.42 kg
RF2300C 240 oz / 6.08 kg
RF2300A 63.5 oz / 1800 g
RF2300W 38.75 oz / 1100 g
RN1000A 24 oz / 680 g
RN1000W 15 oz / 426 g
RN1000C 156 oz / 4.42 kg
RN1200C 156 oz / 4.42 kg
RN1400A 34 oz / 652 g
RN1400W 21 oz / 426 g
NOTE: All ice machines are charged using R-404A
refrigerant.
96 Part Number 000007661 7/10
Charts
Cycle Times/24-Hour Ice Production/ Refrigerant Pressure Charts
These charts are used as guidelines to verify correct
ice machine operation.
Accurate collection of data is essential to obtain the
correct diagnosis.
• Zero out manifold gauge set before obtaining
pressure readings to avoid misdiagnosis.
• Discharge and suction pressure are highest at the
beginning of the cycle. Allow system to stabilize for
a minimum of 10 minutes, then verify the
pressures are within the range indicated.
• Water temperature will affect suction and
discharge pressure - 50°F (10°C) water
temperature will result in pressures on the lower
end of the ranges specified. 90°F (32°C) water
temperatures will result in pressures on the upper
end of the range specified.
Part Number 000007661 7/10 97
RF0244A
SELF STORAGE AIR-COOLED
Characteristics will vary depending on operating
conditions.
ICE PRODUCTION
Air Temperature/
Water Temperature
70°F/50°F 182lbs 7.86
90°F/70°F 150 lbs 7.86
21°C/10°C 83 kgs 7.86
32°C/21°C 68 kgs 7.86
OPERATING PRESSURES PSIG & kPa
Air Temperature
Entering
Condenser
70°F PSIG
21°C kPa
90°F PSIG
32°C kPa
110°F PSIG
43°C kPa
24 hour
Ice Production
Freeze Cycle
Discharge
Pressure
220-250
1517-1724
300-320
2068-2206
360-390
2482-2689
kWh/100 lbs
kWh/45 kg
Suction
Pressure
38-40
262-276
45-51
310-352
49-55
338-379
98 Part Number 000007661 7/10
RF0266A
SELF STORAGE AIR-COOLED
Characteristics will vary depending on operating
conditions.
ICE PRODUCTION
Air Temperature/
Water Temperature
70°F/50°F 182lbs 7.86
90°F/70°F 150 lbs 7.86
21°C/10°C 83 kgs 7.86
32°C/21°C 68 kgs 7.86
OPERATING PRESSURES PSIG & kPa
Air Temperature
Entering
Condenser
70°F PSIG
21°C kPa
90°F PSIG
32°C kPa
110°F PSIG
43°C kPa
24 hour
Ice Production
Freeze Cycle
Discharge
Pressure
220-250
1517-1724
300-320
2068-2206
360-390
2482-2689
kWh/100 lbs
kWh/45 kg
Suction
Pressure
38-40
262-276
45-51
310-352
49-55
338-379
Part Number 000007661 7/10 99
RF0385A
SELF STORAGE AIR-COOLED
Characteristics will vary depending on operating
conditions.
ICE PRODUCTION
Air Temperature/
Water Temperature
70°F/50°F 332 6.41
90°F/70°F 294 5.79
21°C/10°C NA NA
32°C/21°C NA NA
OPERATING PRESSURES PSIG & kPa
Air Temperature
Entering
Condenser
70°F PSIG
21°C kPa
90°F PSIG
32°C kPa
110°F PSIG
43°C kPa
24 hour
Ice Production
Freeze Cycle
Discharge
Pressure
243-270
1675-1862
273-315
1882-2172
348-380
2399-2620
kWh/100 lbs
kWh/45 kg
Suction
Pressure
31-36
214-248
34-39
234-269
38-43
262-296
NOTE: Preliminary data.
100 Part Number 000007661 7/10
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