Manitowoc RFF0620A161 22" Air Cooled Modular Flake Ice User Manual

Part Number 000015433_03 5/20

Flake & Nugget Models

RFF/UFF/RNF/UNF Ice Machines

Technician’s Handbook

Engineered for Ease

Safety Notices

Read these precautions to prevent personal injury:

• Read this manual thoroughly before operating,

installing or performing maintenance on the

equipment. Failure to follow instructions in this

manual can cause property damage, injury or death.

• Routine adjustments and maintenance procedures

outlined in this manual are not covered by the

warranty.

• Proper installation, care and maintenance are essential

for maximum performance and trouble-free operation

of your equipment.

• Visit our website www.manitowocice.com for manual

updates, translations, or contact information for

service agents in your area.

• This equipment contains high voltage electricity and

refrigerant charge. Installation and repairs are to be

performed by properly trained technicians aware of

the dangers of dealing with high voltage electricity

and refrigerant under pressure. The technician

must also be certified in proper refrigerant handling

and servicing procedures. All lockout and tag out

procedures must be followed when working on this

equipment.

• This equipment is intended for indoor use only. Do not

install or operate this equipment in outdoor areas.

• As you work on this equipment, be sure to pay close

attention to the safety notices in this handbook.

Disregarding the notices may lead to serious injury

and/or damage to the equipment.

Warning

Follow these electrical requirements during installation

of this equipment.

• All field wiring must conform to all applicable

codes of the authority having jurisdiction. It is

the responsibility of the end user to provide the

disconnect means to satisfy local codes. Refer to

rating plate for proper voltage.

• This appliance must be grounded.

• This equipment must be positioned so that the plug

is accessible unless other means for disconnection

from the power supply (e.g., circuit breaker or

disconnect switch) is provided.

• Check all wiring connections, including factory

terminals, before operation. Connections can

become loose during shipment and installation.

Warning

Follow these precautions to prevent personal injury

during installation of this equipment:

• Installation must comply with all applicable

equipment fire and health codes with the authority

having jurisdiction.

• To avoid instability the installation area must be

capable of supporting the combined weight of the

equipment and product. Additionally the equipment

must be level side to side and front to back.

• Remove all removable panels before lifting and

installing and use appropriate safety equipment

during installation and servicing. Two or more

people are required to lift or move this appliance to

prevent tipping and/or injury.

• Do not damage the refrigeration circuit when

installing, maintaining or servicing the unit.

• Connect to a potable water supply only.

• This equipment contains refrigerant charge.

Warning

Follow these precautions to prevent personal injury

while operating or maintaining this equipment.

• Refer to nameplate to identify the type of refrigerant

in your equipment.

• Only trained and qualified personnel aware of the

dangers are allowed to work on the equipment.

• Read this manual thoroughly before operating,

installing or performing maintenance on the

equipment. Failure to follow instructions in this

manual can cause property damage, injury or death.

• Crush/Pinch Hazard. Keep hands clear of moving

components. Components can move without

warning unless power is disconnected and all

potential energy is removed.

• Moisture collecting on the floor will create a

slippery surface. Clean up any water on the floor

immediately to prevent a slip hazard.

Warning

Follow these precautions to prevent personal injury

while operating or maintaining this equipment.

• Objects placed or dropped in the bin can affect

human health and safety. Locate and remove any

objects immediately.

• Never use sharp objects or tools to remove ice or

frost.

• Do not use mechanical devices or other means to

accelerate the defrosting process.

• When using cleaning fluids or chemicals, rubber

gloves and eye protection (and/or face shield) must

be worn.

DANGER

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. Do not allow children to play with, clean or

maintain this appliance without proper supervision.

Warning

Follow these precautions to prevent personal injury

during use and maintenance of this equipment:

• It is the responsibility of the equipment owner to

perform a Personal Protective Equipment Hazard

Assessment to ensure adequate protection during

maintenance procedures.

• Do Not Store Or Use Gasoline Or Other Flammable

Vapors Or Liquids In The Vicinity Of This Or Any

Other Appliance. Never use flammable oil soaked

cloths or combustible cleaning solutions for

cleaning.

• All covers and access panels must be in place and

properly secured when operating this equipment.

• Risk of fire/shock. All minimum clearances must be

maintained. Do not obstruct vents or openings.

• Failure to disconnect power at the main power

supply disconnect could result in serious injury or

death. The power switch DOES NOT disconnect all

incoming power.

• All utility connections and fixtures must be

maintained in accordance with the authority having

jurisdiction.

• Turn off and lockout all utilities (gas, electric, water)

according to approved practices during maintenance

or servicing.

Table of Contents

Part Number 000015433_03 5/20 9

General Information

Model Numbers ................................. 15

Flake Air & Water-Cooled Models .............15

Nugget Air & Water-Cooled Models ...........15

QuietQube Models with Remote Condensing Unit .

.........................................16

Ice Machine Heat of Rejection.................... 16

Ice Machine Warranty Information ............... 17

Warranty Registration & Claim Procedures .....17

Model/Serial Number............................ 17

Manitowoc Cleaner/Descaler and Sanitizer ....... 18

Installation

Installation Requirements........................ 19

Potable Water Requirements..................... 20

Drain Connections ...............................20

Ice Machine Clearance Requirements............. 21

Cooling Tower Applications ......................21

Electrical Service................................. 22

Voltage...................................22

Fuse/Circuit Breaker ........................22

Ground Fault Interrupter Circuit (GFIC) ........22

Maximum Breaker/Minimum Circuit Amperage

Chart ............................................ 23

RFF/RNF/UFF/UNF Air-cooled Models .........23

RFF/RNF Water-cooled Models ...............23

RFF/RNF QuietQube Model Head Sections......24

RCUF QuietQube Model Condensing Units .....24

10 Part Number 000015433_03 5/20

Maintenance

Cleaning and Sanitizing .......................... 25

Exterior Cleaning...........................25

Detailed Descaling and Sanitizing Procedure ....25

Remedial Cleaning Procedure for Heavily Scaled Ice

Machines........................................ 30

Cleaning the Air filter and Condenser..........32

Removal from Service/Winterization .............33

Sequence of Operation

Ice Making Sequence of Operation ............... 35

UFF0200/UFF0350/UNF0200/UNF0300 Operation

.........................................35

RFF0320 & RNF0320 Operation...............35

RNF0620/RFF0620/RNF1100/RFF1300/RFF2500

Operation ................................36

RNF1020C/RFF1220C/RNF2000C/RFF2200C ....37

Thermostat Settings ............................. 39

Part Number 000015433_03 5/20 11

Troubleshooting

UFF0200/UFF0350/UNF0200/UNF0300

Troubleshooting ................................. 41

Self-Contained Air-Cooled ...................41

RFF0320/RNF0320 Troubleshooting .............. 47

Self-Contained Air-Cooled ...................47

RFF0620/RNF0620/RNF1100/RFF1300

Troubleshooting ................................. 53

Self-Contained Air-Cooled ...................53

Rotation Sensor Operation...................53

RNF1020C/RFF1220C Troubleshooting............59

QuietQube Remote Air-cooled Models with

Remote Condensing Unit ....................59

RFF2500 Troubleshooting ........................ 66

Self-Contained Air-Cooled ...................66

Rotation Sensor Operation...................66

RNF2000C/RFF2200C Troubleshooting............73

QuietQube Remote Air-cooled Models with

Remote Condensing Unit ....................73

Refrigeration Troubleshooting.................... 81

Capillary Tube Models ......................81

Thermostatic Expansion Valve Models . . . . . . . . .82

12 Part Number 000015433_03 5/20

Component Specifications

Bin Thermostat ............................83

Low Temperature Thermostat

Evaporator safety thermostat ................83

High Pressure Cutout (HPCO) Control ..........84

Rotation Sensor............................85

Low Pressure Cutout (LPCO) Control...........86

Fan Cycle Control ..........................86

Total System Refrigerant Charge ..............87

Filter-Driers ...............................88

Suction Cleanup Filter-Drier..................88

Charts

Ice Production & Refrigerant Pressure ............ 89

Flake Models .................................... 90

UFF200A .................................90

RFF0320A.................................91

UFF0350A ................................92

RFF0620A.................................93

RFF0620W ................................94

RFF1220C With RCUF1200...................95

RFF1300A.................................96

RFF1300W ................................97

RFF2200C With RCUF2200...................98

RFF2500A.................................99

Nugget Models .................................100

UNF0200A ...............................100

UNF0300A ...............................101

RNF0320A ...............................102

RNF0620A ...............................103

RNF0620W ..............................104

RNF1020C With RCUF1000 .................105

RNF1100A ...............................106

RNF1100W ..............................107

RNF2000C ...............................108

Part Number 000015433_03 5/20 13

Diagrams

Wiring Diagrams ................................109

Flake Models ...................................110

UFF0200A/UFF350A Air-Cooled .............110

RFF0320A/RFF0620A Air-Cooled .............112

RFF1220C QuietQube Head Section ..........114

RFF1300A Air-Cooled ......................116

RFF1300W Water-Cooled...................118

RNF2000C QuietQube Head Section..........120

RFF2200C QuietQube Head Section ..........122

RFF2500A Air-Cooled ......................124

Nugget Models .................................126

UNF0200A/UNF0300A Air-Cooled............126

RNF0320A Air-Cooled ......................128

RNF0620A Air-Cooled ......................130

RNF0620W Water-Cooled ..................132

RNF1020C QuietQube Head Section..........134

RNF1100A Air-Cooled ......................136

RNF1100W Water-cooled...................138

Condensing Units ...............................140

RCUF Condensing Unit 1ph .................140

RCUF Condensing Unit 3ph .................142

Compressor Start Component Wiring ...........144

UFF0200/UNF0200 ........................144

UNF0300/RFF0320/UFF0350/UNF0350/RFF0620 ..

........................................144

RFF1300/RFF2500.........................145

14 Part Number 000015433_03 5/20

Refrigeration Tubing Schematics.................147

UFF0200/UFF0350/UNF0200/UNF0300 .......147

RFF0320/RNF0320 Air-cooled ...............148

RFF0620/RNF0620/RNF1100 Air & Water-cooled ..

........................................149

RNF1020C QuietQube Head Section & RCUF1000

Condensing Unit ..........................150

RFF1220C & RCUF1000 Condensing Unit . . . . . .152

RNF2000C QuietQube Head Section & RCUF2200

Condensing Unit ..........................154

RFF2200C QuietQube Head Section & RCUF2200

Condensing Unit ..........................156

RFF1300 Air & Water-cooled ................158

RFF2500 Air-cooled........................159

Part Number 000015433_03 5/20 15

Model Numbers

FLAKE AIR & WATER-COOLED MODELS

Flake Models

Self Storage

Air-Cooled

Self Storage

Water-Cooled

Modular Air-

Cooled

Modular

Water-Cooled

UFF0200A – – –

UFF0350A – – –

– – RFF0320A –

– – RFF0620A RFF0620W

– – RFF1300A RFF1300W

– – RFF2500A –

NUGGET AIR & WATER-COOLED MODELS

Self Storage

Air-Cooled

Self Storage

Water-Cooled

Modular

Air-Cooled

Modular

Water-Cooled

UNF0200A – – –

UNF0300A – – –

– – RNF0320A –

– – RNF0620A RNF0620W

– – RNF1100A RNF1100W

General Information

16 Part Number 000015433_03 5/20

QUIETQUBE MODELS WITH REMOTE CONDENSING

UNIT

Flake Models

QuietQube Head RCUF Remote Condensing Unit

RFF1220C RCUF1200

RFF2200C RCUF2200

Nugget Models

QuietQube Head RCUF Remote Condensing Unit

RNF1020C RCUF1000

RNF2000C RCUF2200

Ice Machine Heat of Rejection

Series Ice Machine Heat of Rejection BTU/Hour

UFF0200 - RFF0320 2400

UNF0200 2800

UNF0300 - UFF0350 5000

RNF0320 3075

RFF0620 - RNF0620 5200

RNF1100 - RFF1300 7500

RFF2500 17000

Part Number 000015433_03 5/20 17

Ice Machine Warranty Information

For warranty information visit: www.manitowocice.com/

Service/Warranty

• Warranty Coverage Information

• Warranty Registration

• Warranty Verification

Warranty coverage begins the day the ice machine is

installed.

WARRANTY REGISTRATION & CLAIM PROCEDURES

Scan the QR code with your smart device or enter the link

in a web browser to access:

• Warranty registration

• Warranty information

• Warranty labor claim form

WWW.MANITOWOCICE.COM/SERVICE/WARRANTY#WARRANTY-

REGISTRATION

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.

18 Part Number 000015433_03 5/20

Manitowoc Cleaner/Descaler and Sanitizer

Manitowoc Ice Machine Cleaner/Descaler and Sanitizer

are available in 16 oz. (473 ml) bottles. These are the only

cleaner and sanitizer approved for use with Manitowoc

products.

Cleaner/Descaler Part Number Sanitizer Part Number

16 oz. 000000084 16 oz. 9405653

1 gal N/A 1 gal. 9405813

Part Number 000015433_03 5/20 19

Installation Requirements

The location selected for the ice machine must meet the

following criteria. If any of these criteria are not met,

select another location.

• Air temperature - Minimum 50°F (10°C), Maximum

110°F (43°C)

• 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.

• The ice machine and bin must be level.

• Routine adjustments and maintenance procedures

outlined in this manual are not covered by the

warranty.

Installation

20 Part Number 000015433_03 5/20

Potable Water Requirements

• Plumbing must conform to local codes.

• Water temperature: Minimum 37°F (3°C), Maximum

90°F (32°C).

• 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 (80 psig

[552 kPa] obtain a water pressure regulator.

• 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.

• When local code requires, a back flow preventer must

be installed on the water inlet line.

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.

• Bin drain termination must have an air gap.

• Separate insulated bin and water-cooled condenser

drain lines are required.

• The bin and ice machine drains must be run separately.

Part Number 000015433_03 5/20 21

Ice Machine Clearance Requirements

All Models Clearance Requirements

Back 5” (12.7 cm)

Sides/Top 8” (20.3 cm)

RCUF Units Remote Condensing Unit

Front/Back 24” (61.0 cm)

Sides/Top 6” (15.2 cm)

24 inches clearance on top

and sides is recommended for

serviceability

NOTE: Allowance must be made for removal when the ice

machine is built-in. Removal of the top panel is required

for cleaning and sanitizing.

Cooling Tower Applications

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).

• Water entering the condenser must not exceed 84 psi

(6 bar).

22 Part Number 000015433_03 5/20

Electrical Service

Warning

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.

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).

Warning

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.

Part Number 000015433_03 5/20 23

Maximum Breaker/Minimum Circuit Amperage

Chart

NOTE: Due to continuous improvements, this information

is for reference only. Please refer to the ice machine serial

number tag to verify electrical data. Model/Serial tag

information overrides information listed on these pages.

RFF/RNF/UFF/UNF AIR-COOLED MODELS

Series Ice

Machine

Voltage

Phase

Cycle

Air-Cooled

Max

Fuse/

Circuit Breaker

Min

Circuit

Amps

Total

Circuit

Amps

Series Ice

Machine

Voltage

Phase

Cycle

Air-Cooled

Max

Fuse/

Circuit Breaker

Min

Circuit

Amps

Total

Circuit

Amps

UNF0200 115/1/60 15 Amp N/A 7.5

UFF0200 115/1/60 15 Amp N/A 7.5

UFF0350 115/1/60 15 Amp N/A 10.0

UNF0300 115/1/60 15 Amp N/A 10.0

RNF0320 115/1/60 20 Amp 12.8 —

RFF0320 115/1/60 20 Amp 12.8 —

RNF0620 115/1/60 25 Amp 16.3 —

RFF0620 115/1/60 25 Amp 16.3 —

RNF1100 208-230/1/60 20 Amp 14.2 —

RFF1300 208-230/1/60 20 Amp 12.5 —

RFF2500 208-230/3/60 20 Amp 15.0 —

RFF/RNF WATER-COOLED MODELS

Series Ice

Machine

Voltage Phase

Cycle

Water-Cooled

Max

Fuse/

Circuit Breaker

Min

Circuit

Amps

RNF0620 115/1/60 25 Amp 15.4

RFF0620 115/1/60 25 Amp 15.4

RNF1100 208-230/1/60 20 Amp 13.7

RFF1300 208-230/1/60 20 Amp 12.5

24 Part Number 000015433_03 5/20

RFF/RNF QUIETQUBE MODEL HEAD SECTIONS

Series Ice

Machine

Voltage Phase

Cycle

Remote Air-Cooled

Max

Fuse/

Circuit Breaker

Total

Circuit

Amps

RNF1020C 115/1/60 15 Amp 2.9

RFF1220C 208-230/1/60 15 Amp 1.4

RNF2000C 208-230/1/60 15 AMP 3.2

RFF2200C 208-230/1/60 15 Amp 3.2

RCUF QUIETQUBE MODEL CONDENSING UNITS

Condensing

Unit

Voltage Phase

Cycle

Remote Air-Cooled

Max

Fuse/

Circuit Breaker

Total

Circuit

Amps

RCUF1000

208-230/1/60

208-230/3/60

15 15

RCUF1200

208-230/1/60

208-230/3/60

15 15

RCUF2200 208-230/3/60 15 15

Part Number 000015433_03 5/20 25

Cleaning and Sanitizing

Maintenance procedures covered in this manual are not

covered by the warranty.

Caution

Use only Manitowoc approved Ice Machine Cleaner/

Descaler (part number 000000084) and Sanitizer (part

number 9405653). Do not mix Cleaner/Descaler 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.

Warning

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.

DETAILED DESCALING AND SANITIZING PROCEDURE

This procedure must be performed once every 6 months.

• All ice must be removed from the bin

• The ice machine and bin must be disassembled

descaled and sanitized

• The ice machine produces ice with the cleaner/

descaler and sanitizer solutions

• All ice produced during the descaling and sanitizing

procedure must be discarded

Maintenance

26 Part Number 000015433_03 5/20

Detailed Descaling and Sanitizing Procedure

Use Ice Machine Cleaner/Descaler 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 Amount of Cleaner/Descaler

Part Number 000000084

1 gallon (4 Liters) 3 ounces (90 ml)

Step 6 Fill the evaporator and reservoir with descaling

solution.

Important

Prop Float Up to Prevent Low Water Level Shutdown

Part Number 000015433_03 5/20 27

Step 7 Move the toggle switch to the ON position. The

ice machine will make ice with the descaling solution and

deposit the ice in the bin. Add the remaining descaler/

water solution as the water level in the reservoir drops.

NOTE: Do not allow the descaler/water solution level to

drop below the minimum water level. The ice machine will

discontinue the cycle if the water float switch opens.

Step 8 After all of the descaler/water solution has

been added turn on the ice making water supply. Continue

the freeze cycle for 10 minutes to remove the solution

from the water circuit.

Step 9 Place the toggle switch in the OFF position and

turn off the ice making water supply.

Step 10 Remove the following components for hand

descaling and sanitizing for RFF and RNF models.

A. Remove water reservoir cover.

B. Remove microswitch and bin thermostat from

the ice chute.

C. Remove retainer, ice chute elbow and ice chute.

28 Part Number 000015433_03 5/20

D. Hand descale the removed part(s) in a properly

mixed solution of descaler and water.

Solution Type Water Mixed With

Descaling 1 gal. (4 L) 16 oz (500 ml) Cleaner/Descaler

Part Number 000000084

E. Use a soft-bristle brush or sponge (NOT a wire

brush) to carefully clean the parts.

F. Use the solution and a brush or sponge to clean

all disassembled components and the inside of

the bin.

G. Rinse all cleaned parts with clear potable water.

H. Mix a solution of sanitizer and water.

Solution Type Water Mixed With

Sanitizer 3 gal. (11 L) 2 oz (60 ml) sanitizer

Part Number 94-0565-3

I. Use the sanitizer/water solution and a sponge to

sanitize all removed components and the inside

of the bin. Do not rinse the sanitized parts.

NOTE: Descale, rinse and spray sanitizer on all interior and

exterior areas of the evaporator discharge spout on UFF

and UNF models.

Part Number 000015433_03 5/20 29

Step 11 Reassemble all components removed in step 10

into the ice machine.

Step 12 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 13 Fill the evaporator and reservoir with sanitizer/

water solution.

Important

Prop Float Up to Prevent Low Water Level Shutdown

Step 14 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 cycle if the water float switch opens.

Step 15 After all of the sanitizer/water solution has

been added to the reservoir, turn on the ice making water

supply.

Step 16 Continue the freeze cycle for 30 minutes and

then discard all ice produced.

30 Part Number 000015433_03 5/20

Remedial Cleaning Procedure for Heavily

Scaled Ice Machines

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 Procedure must 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.

Part Number 000015433_03 5/20 31

Step 5 Refer to chart and premix cleaner/descaler

with lukewarm water in a non-metallic container.

Model Water

Reservoir

Capacity

Mix Cleaner/Descaler and

Water

Use Ice machine cleaner/

descaler, part number

000000084 only

Cleaner Water

UNF0200

UFF0200

UFF0350

UNF0300

14 oz (400 ml) 9 oz (266 ml) 5 oz (148 ml)

RNF0320

RFF0320

RNF0620

RFF0620

17 oz (500 ml) 11 oz (325 ml) 6 oz (177 ml)

RNF1020C

RNF1100

RFF1220C

RFF1300

34 oz (1 L) 23 oz (680 ml) 11 oz (325 ml)

RNF2000C

RFF2200C

RFF2500

68 oz (2 L) 46 oz (1.3 L) 22 oz (650 ml)

Step 6 Remove all water from the evaporator and

water reservoir. Add the entire descaler/water solution

and re-install the reservoir cover.

Leave the descaler/water solution in the evaporator for a

minimum of 4 hours.

Step 7 Remove all descaler/water solution from the

evaporator and water reservoir.

Step 8 Perform the detailed descaling and sanitizing

procedure.

32 Part Number 000015433_03 5/20

CLEANING THE AIR FILTER AND CONDENSER

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 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.

Warning

If you are cleaning the condenser fan blades with water,

cover the fan motor to prevent water damage.

Part Number 000015433_03 5/20 33

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.

THIS PAGE INTENTIONALLY LEFT BLANK

34 Part Number 000015433_03 5/20

Part Number 000015433_03 5/20 35

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.

UFF0200/UFF0350/UNF0200/UNF0300 OPERATION

The ice machine will not start until:

A. The rocker switch is moved to “ON”.

B. Ice does not contact the bin thermostat bulb.

C. The water reservoir is full of water.

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 will

restart when ice no longer contacts the bin thermostat.

RFF0320 & RNF0320 OPERATION

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. Ice Chute Safety Switch

C. Low Water Level Switch

D. High Pressure Cut-out Switch

E. Low Pressure Cut-Out Switch

Placing the toggle switch in the ON position starts the

gear motor and an 8 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.

Sequence of Operation

36 Part Number 000015433_03 5/20

RNF0620/RFF0620/RNF1100/RFF1300/RFF2500

OPERATION

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 8 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.

Part Number 000015433_03 5/20 37

RNF1020C/RFF1220C/RNF2000C/RFF2200C

Remote Air-cooled Condensing Unit Models

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 8 minutes of correct rotation the time delay

ends and the liquid line solenoid valve opens.

• When the refrigerant pressure is high enough to close

the low-pressure control the contactor coil energizes

and the compressor and condenser fan motor starts.

The ice machine will continue to make ice until ice contacts

the bin thermostat and the liquid line solenoid valve closes

and the refrigeration system pumps down.

• The refrigerant pressure drops and the fan cycling

pressure control opens stopping the.

• When the refrigerant pressure is low enough to open

the low pressure control, the contactor coil is de-

energized and the compressor and condenser fan

motor stop.

The ice machine remains off until ice no longer contacts

the bin thermostat.

38 Part Number 000015433_03 5/20

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 000015433_03 5/20 39

Thermostat Settings

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 indicator on the ice

machine label as the initial setting 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.

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

40 Part Number 000015433_03 5/20

Thermostat Setting Chart

NOTE: Settings are for reference only. Factory setting is

indicated on control label and overrides information listed

on this page.

Model Bin Thermostat

Setting

Evaporator

Thermostat Setting

UNF0200 5 6

UFF0200 5 5

UNF0300 5 6

RFF0320 3 7

RNF0320 5 6

UFF0350 5 7

RNF0620 2 --

RFF0620 3 --

RNF1020C 3 --

RNF1100 3 --

RFF1220C 3 --

RFF1300 3 --

RNF2000C 3 --

RFF2200C 3 --

RFF2500 3 --

Part Number 000015433_03 5/20 41

Diagnostic troubleshooting for the ice machine involves

following flowcharts that are dependent 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.

UFF0200/UFF0350/UNF0200/UNF0300

Troubleshooting

SELF-CONTAINED AIR-COOLED

Normal Operation

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

NOTE: 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 will restart when ice no longer contacts the bin

thermostat.

Troubleshooting

42 Part Number 000015433_03 5/20

Power Supplied to Ice

Machine?

Toggle Switch In ON

Position?

Move Switch To ON Position

Plug In Ice Machine, Reset BreakerNO

YES

Electrical Flowchart -

UFF0200/UFF0350/UNF0200/UNF0300

AIR & WATER

Switch Illuminated?

YES

Replace Switch

Part Number 000015433_03 5/20 43

YES

Bin Thermostat

Closed?

Replace Thermostat

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/O

Yes

Evaporator Safety

Thermostat Closed?

Evaporator Cold?

Replace Thermostat

Allow Evaporator To

Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/O

Yes

YES

RF0266 LPCO

44 Part Number 000015433_03 5/20

Low Water Level

Switch Closed?

YES

Reservoir Full Of

Water?

Restore Water Supply / Replace Water Inlet Valve

Power To Water

Inlet Valve?

Yes

Water Level

Switch Closed?

Repair WiringYes

YES

Replace Switch or Float Assembly

Part Number 000015433_03 5/20 45

Wiring From

Gearmotor Intact?

Line Voltage To

Compressor Relay

Coil?

Gear Motor Runs? NO

YES

Line Voltage To

Gear motor?

Repair WiringNo

Remove Auger

From Evaporator

Ice In Evaporator?

Gear Motor Runs?

Replace Gear Motor

Yes

Rebuild

Evaporator

Thaw Evaporator

Yes

Replace Gear Motor

Repair Wiring

Yes

46 Part Number 000015433_03 5/20

Relay Closed?

Line Voltage To

Compressor?

YES

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 000015433_03 5/20 47

RFF0320/RNF0320 Troubleshooting

SELF-CONTAINED AIR-COOLED

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. Ice Chute Safety Switch

C. Low Water Level Switch

D. High Pressure Cut-out Switch

E. Low Pressure Cut-Out Switch

Placing the toggle switch in the ON position starts the

gear motor and an 8 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.

48 Part Number 000015433_03 5/20

Power Supplied to Ice

Machine?

Toggle Switch In ON

Position?

Move Switch To ON Position

Plug In Ice Machine, Reset BreakerNO

YES

Electrical Flowchart - RFF0320/RNF0320

Switch Illuminated?

YES

Replace Switch

Part Number 000015433_03 5/20 49

Bin Thermostat

Closed?

Replace Thermostat

YES

Low Pressure

Switch Closed?

Chute Switch

Closed?

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

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

50 Part Number 000015433_03 5/20

Low Water Level

Switch Closed?

YES

Reservoir Full Of

Water?

Restore Water Supply / Replace Water Inlet Valve

Replace Switch or Float Assembly

Power To Water

Inlet Valve?

Yes

Water Level

Switch Closed?

Repair WiringYes

YES

Replace Switch or Float Assembly

Part Number 000015433_03 5/20 51

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

Rebuild

Replace Evaporator

Thaw Evaporator

Yes

Gear Motor

Centrifugal Switch

Closed?

Line Voltage To

Compressor Time

Delay?

Repair Wiring

Replace Gear Motor

Yes

YES

52 Part Number 000015433_03 5/20

Contactor Closed?

Line Voltage To

Compressor?

YES

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?

Repair Wiring

Replace Time Delay Relay

10 Minute Time

Delay Expired?

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Yes

Power To Contactor Coil?

Yes

Install

Compressor Time

Delay Jumper

Yes

Part Number 000015433_03 5/20 53

RFF0620/RNF0620/RNF1100/RFF1300

Troubleshooting

SELF-CONTAINED AIR-COOLED

Normal Operation

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

NOTE: Placing the toggle switch in the ON position starts

the gear motor. After 8 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.

ROTATION SENSOR OPERATION

Light Definition

Yellow Blinking Time Delay Period

Yellow Solid Normal Operation Sensing

Red Blinking 2

Flashes Per Second

Time Delay Period - First 1 To 7 Faults

Red Solid Lockout - 8 Consecutive Faults Due To A

Speed Fault

Remove/Restore Power To Reset

Red Blinking Slowly Lockout - 8 Consecutive Faults Due To A

Short Circuit

See “Rotation Sensor” on page 85 for sequence of operation

54 Part Number 000015433_03 5/20

Power Supplied to Ice

Machine?

Toggle Switch In ON

Position?

Move Switch To ON Position

Plug In Ice Machine, Reset BreakerNO

YES

Electrical Flowchart – RNF0620/RFF0620/RNF1100/RFF1300

AIR & WATER

Switch Illuminated?

YES

Replace Switch

Part Number 000015433_03 5/20 55

Bin Thermostat

Closed?

Replace Thermostat

YES

Low Pressure

Control Closed?

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

High Pressure

Control Closed?

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

Yes

56 Part Number 000015433_03 5/20

Low Water Level

Switch Closed?

YES

Reservoir Full Of

Water?

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?

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

YES

Part Number 000015433_03 5/20 57

Gear Motor Runs? NO

YES

Line Voltage To

Gear motor?

Repair Wiring

Disconnect

Evaporator From

Gear Motor

Ice In Evaporator?

Gear Motor Runs?

Replace Gear Motor

Yes

Rebuild

Replace Evaporator

Thaw Evaporator

Yes

YES

10 Minute Time

Delay Expired?

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

58 Part Number 000015433_03 5/20

Contactor Closed?

Line Voltage To

Compressor?

YES

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?

Repair Wiring

Replace Rotation Sensor/Time Delay Relay

Yes

Power To Contactor Coil?

Yes

Install

Compressor Time

Delay Jumper

Part Number 000015433_03 5/20 59

RNF1020C/RFF1220C Troubleshooting

QUIETQUBE REMOTE AIR-COOLED MODELS WITH

REMOTE CONDENSING UNIT

Normal Operation

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 8 minutes of correct rotation the time delay

ends and the liquid line solenoid valve opens.

The refrigerant pressure will increase and close the fan

cycling pressure control and the condenser fan motor

starts.

The ice machine will continue to make ice until ice contacts

the bin thermostat and the liquid line solenoid valve closes

and the refrigeration system pumps down.

When the refrigerant pressure is low enough to open the

low pressure control, the contactor coil is de-energized and

the compressor stops.

NOTE: The ice machine remains off until ice no longer

contacts the bin thermostat.

60 Part Number 000015433_03 5/20

Power Supplied

to Ice Machine?

Toggle Switch In

ON Position?

Move Switch To ON Position

Restore Power, Reset BreakerNO

YES

Electrical Flowchart - RNF1020C/RFF1220C QuietQube

Switch

Illuminated?

YES

Replace Switch

Immediately

Trips?

YES

Toggle Switch In

Off Position?

Isolate And Ohm Each

Component - Then Each

Wire If Required

TRIPS

YES

Isolate And Ohm Switch

Check Wiring From Panel

Test Run

YES

Part Number 000015433_03 5/20 61

Bin Thermostat

Closed?

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

Chute Switch

Closed?

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace SwitchYES

NO NO

YES

Yes

YES

Reservoir Full Of

Water?

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

62 Part Number 000015433_03 5/20

Low Water Level

Switch Closed?

Replace Switch or

Float Assembly

Gear Motor Runs? NO

Line Voltage To

Gear motor?

Repair WiringNO

Disconnect

Evaporator From

Gear Motor

Runs?

Replace Gear Motor

YES

Ice In

Evaporator?

Rebuild

Replace Evaporator

Thaw EvaporatorYES

YES

10 Minute Time

Delay Expired?

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Part Number 000015433_03 5/20 63

YES

Replace Relay

Repair Wiring

Replace Rotation

Sensor/Time Delay

Power To Left Time

Delay Relay Coil?

Install

Compressor Time

Delay Jumper On

Left Evaporator

Delay Relay Contacts

Closed?

Delay Relay Contacts

Closed?

Yes

YES

Line Voltage To

Left Delay Relay Coil?

YES

Replace Relay

64 Part Number 000015433_03 5/20

Low Pressure

Control Closed?

Line Voltage At

Liquid Line Solenoid

Valve?

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

Line Voltage To

Compressor

Contactor Coil?

YES

Repair Wiring

Part Number 000015433_03 5/20 65

Contactor

Closed?

Replace Contactor

Line Voltage To

Compressor?

YES

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Repair Wiring

YES

66 Part Number 000015433_03 5/20

RFF2500 Troubleshooting

SELF-CONTAINED AIR-COOLED

Normal Operation

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 8 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.

ROTATION SENSOR OPERATION

Light Definition

Yellow Blinking Time Delay Period

Yellow Solid Normal Operation Sensing

Red Blinking Fault Time Delay Period

Red Solid Lockout - 8 Consecutive Faults

Remove/Restore Power To Reset

See “Rotation Sensor” on page 85 for sequence of operation

Part Number 000015433_03 5/20 67

Power Supplied

to Ice Machine?

Toggle Switch In

ON Position?

Move Switch To ON Position

Restore Power, Reset BreakerNO

YES

Electrical Flowchart – RF2500 Air-cooled

Switch

Illuminated?

YES

Replace Switch

Immediately

Trips?

Yes

Ohm Compressor

Crankcase Heater

And Toggle Switch

Yes

Toggle Switch In

Off Position?

Isolate And Ohm Each

Component - Then Each

Wire If Required

Yes

Trips

68 Part Number 000015433_03 5/20

Bin Thermostat

Closed?

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

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

Yes

Left Side Chute

Switch Closed?

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

Part Number 000015433_03 5/20 69

Low Pressure

Control Closed?

Evaporator Cold?

Replace LPCO

Allow Evaporator To

Warm And Retest

Refrigerant Pressure

Below Cut-out?

Repair Refrigerant Leak,

Evacuate, Recharge

Yes

Right Side Chute

Switch Closed?

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

YES

Reservoir Full Of

Water?

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

70 Part Number 000015433_03 5/20

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

Rebuild

Replace Evaporator

Thaw Evaporator

Yes

YES

10 Minute Time

Delay Expired?

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Low Water Level

Switch Closed?

Replace Switch or Float Assembly

YES

Yes

Part Number 000015433_03 5/20 71

YES

Replace Relay

Line Voltage To

Left Delay Relay Coil?

Repair Wiring

Replace Left Rotation

Sensor/Time Delay

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

Replace Relay

Line Voltage To

Right Delay Relay Coil?

Repair Wiring

Replace Right Rotation

Sensor/Time Delay

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

72 Part Number 000015433_03 5/20

Contactor Closed?

Line Voltage To

Compressor?

YES

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 000015433_03 5/20 73

RNF2000C/RFF2200C Troubleshooting

QUIETQUBE REMOTE AIR-COOLED MODELS WITH

REMOTE CONDENSING UNIT

Normal Operation

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 8 minutes

of correct rotation the time delay ends and the liquid line

solenoid valve opens.

• When the refrigerant pressure is high enough to close

the low-pressure control the contactor coil energizes

and the compressor starts.

THE ICE MACHINE WILL CONTINUE TO MAKE ICE

UNTIL ICE CONTACTS THE BIN THERMOSTAT AND

THE LIQUID LINE SOLENOID VALVE CLOSES AND THE

REFRIGERATION SYSTEM PUMPS DOWN.

• When the refrigerant pressure is low enough to open

the low pressure control, the contactor coil is de-

energized and the compressor stops.

NOTE: The ice machine remains off until ice no longer

contacts the bin thermostat.

74 Part Number 000015433_03 5/20

Power Supplied

to Ice Machine?

Toggle Switch In

ON Position?

Move Switch To ON Position

Restore Power, Reset BreakerNO

YES

Electrical Flowchart - RFF2200C QuietQube

Switch

Illuminated?

YES

Replace Switch

Immediately

Trips?

YES

Toggle Switch In

Off Position?

Isolate And Ohm Each

Component - Then Each

Wire If Required

TRIPS

YES

Isolate And Ohm Switch

Check Wiring From Panel

YES

Test Run

Part Number 000015433_03 5/20 75

Bin Thermostat

Closed?

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

Left Side Chute

Switch Closed?

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

YES

NO NO

YES

Right Side Chute

Switch Closed?

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

YES

NO NO

YES

76 Part Number 000015433_03 5/20

YES

Reservoir Full Of

Water?

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?

Line Voltage To

Gear motors?

Repair WiringNO

Disconnect

Evaporator From

Gear Motor

Runs?

Replace Gear Motor

YES

Ice In

Evaporator?

Rebuild

Replace Evaporator

Thaw Evaporator

YES

Part Number 000015433_03 5/20 77

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?

Repair Wiring

Power To Right Time

Delay Relay Coil?

Install

Compressor Time

Delay Jumper On

Right Evaporator

YES

Replace Relay

78 Part Number 000015433_03 5/20

YES

10 Minute Time

Delay Expired?

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Yes

YES

Replace Relay

Repair Wiring

Replace Left Rotation

Sensor/Time Delay

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?

Part Number 000015433_03 5/20 79

Replace Relay

Line Voltage To

Compressor

Contactor Coil?

YES

Low Pressure

Control Closed?

Line Voltage At

Liquid Line Solenoid

Valve?

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

Clean Condenser,

Check Fan Motor,

Check Fan Cycle Control &

Refrigeration System

YES

Repair Wiring

80 Part Number 000015433_03 5/20

Contactor

Closed?

Replace Contactor

Line Voltage To

Compressor?

YES

Verify:

Compressor Overload is Closed

Start Components Function Fan

Cycling Control Functions

Condenser Fan Motor Functions

Repair Wiring

YES

Part Number 000015433_03 5/20 81

Refrigeration Troubleshooting

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

Low on Refrigerant Overcharge of Refrigerant Non Condensible

in System

Restricted Capillary Tube

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)

High

Increases with

run time

Normal High

Increases with

run time

High

Increases with

run time

82 Part Number 000015433_03 5/20

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

Overcharge of

Refrigerant

Non Condensible

In System

Liquid Line Restriction,

Suction Line Restriction,

Or Expansion Valve

Starving

Flooding Expansion Valve

or Loose Sensing Bulb

(when used)

Discharge Pressure Low High High Low High

Suction Pressure Low High High Low High

Evaporator Inlet

Temperature

Normal Normal or Low High Normal Normal or High

Evaporator Outlet

Temperature

High Normal High High > 12° Differential

between Inlet and Outlet

< 10° Differential between

Inlet and Outlet

Discharge Line

Temperature

High Normal High

Increases With

Run Time

High

Increases With

Run Time

Low

Decreases With Run Time

Part Number 000015433_03 5/20 83

BIN THERMOSTAT

Model Setting Cut-Out Cut-In

UFF0200 / UNF0200

UNF0300 / UFF0350

37°F ±1

3°C ±.1

43°F ±1

6°C ±.1

RFF0320 / RFF0620

RNF0620 / RNF1100

RNF1020C / RFF1300

RFF1220C / RNF2000C

RFF2200C / RFF2500

35°F ±1

1.6°C ±.1

41°F ±1

5.0°C ±.1

LOW TEMPERATURE THERMOSTAT

EVAPORATOR SAFETY THERMOSTAT

Model Setting Cut-Out Cut-In

UFF0200 / UNF0300

-1°F ±1

-17.2°C ±.1

39°F ±1

4°C ±.1

UNF0200 / UNF0300

RFF0320

-3°F ±1

-19.5°C ±.1

39°F±.1

4°C ±.1

RNF0320 / UFF0350

-8°F ±.1

-22°C ±.1

39°F±.1

4°C ±.1

Component Specifications

84 Part Number 000015433_03 5/20

HIGH PRESSURE CUTOUT (HPCO) CONTROL

Model Cut-Out Cut-In

RNF0320 / RFF0620

RFF1300 / RNF0320

RNF0620 / RNF1100

325 psig ±10

(2250 kPa ±69)

22.5 bar ±.69

200 psig ±10

(1379 kPa ±69)

13.79 bar ±.69

Auto Reset

RFF2500

435 psig ±10

(3000 kPa ±69)

30 bar ±.69

Manual Reset

RNF1020C / RCUF1000

RFF1220C / RCUF1200

RNF2000C / RCUF2200

RFF2200C / RCUF2200

450 psig ±10

(3100 kPa ±69)

31 bar ±.69

300 psig ±10

(2068 kPa ±69)

20 bar ±20.68

Auto Reset

Part Number 000015433_03 5/20 85

ROTATION SENSOR

RFF0620 / RNF0620 / RNF1100 / RNF1020C / RFF1300

RNF2000C / RFF2500

Light Definition

Yellow Blinking Time Delay Period

Yellow Solid Normal Operation Sensing

Red Blinking 2

Flashes Per Second

Time Delay Period - First 1 To 7 Faults

Red Solid Lockout - 8 Consecutive Faults Due To A

Speed Fault

Remove/Restore Power To Reset

Red Blinking Slowly Lockout - 8 Consecutive Faults Due To A

Short Circuit

Operation:

1. At start up, the sensor starts an 8 minute compressor

time delay period.

2. After 8 minutes the sensor energizes the compressor

contactor and ignores rotation for 20 seconds.

3. After 8-minutes, 20 seconds the auger rotation

must not fall below 4 rpm or exceed 13 rpm; normal

rotation is 9-10 RPM. When the auger rotation is

less than 4 rpm or more than 13 rpm the sensor

de-energizes the compressor contactor, starts an 8

minute time delay period and flashes the red led.

When the 8 minute delay period ends the compressor

will restart.

4. If the rotation sensor detects 8 consecutive RPM out

of range failures the sensor locks out the compressor

contactor and energizes the red led. The rotation

sensor must be reset by cycling power off/on.

NOTE: Verify all electrical connections are secure and free

of corrosion whenever rotation sensor lockouts exist.

86 Part Number 000015433_03 5/20

LOW PRESSURE CUTOUT (LPCO) CONTROL

Model Cut-Out Cut-In

UFF0200 / RNF0320

RNF0620 / RFF0620

RNF1100 / RFF1300

RFF2200C / RCUF2200

7 psig ±2

(.5 bar ±.2)

36 psig ±2

(2.5 bar ±.2)

RFF2500

12 psig ±2

(.8 bar ±.2)

Manual Reset

FAN CYCLE CONTROL

Model Cut-Out (Open) Cut-In (Close)

UFF0200 / RNF0320

RFF0320 / UFF0350

RNF0620 / RFF0620

RFF1300 / RFF2500

200 ±5

(15.17 bar ±.34)

250 ±5

(17.23 bar ±.34)

UNF0200 / UNF0300

RNF0320 / UFF0350

RFF0620 / RNF1100

RFF1300 / RFF2500

225 ±5

(15.51 bar ±.34)

275 ±5

(18.96 bar ±.34)

Part Number 000015433_03 5/20 87

TOTAL SYSTEM REFRIGERANT CHARGE

This information is for reference only. Model/Serial plate

information overrides information listed in this table.

Model Refrigerant Charge

Flake Models

UFF0200A 9.4 oz / 265 g

UFF0350A 11.25 oz / 320 g

RFF0320A 13.6 oz / 395 g

RFF0620A 20.8 oz / 590 g

RFF0620W 16.9 oz / 480 g

RFF1300A 21.9 oz / 620 g

RFF1220C 156 oz / 4.42 kg

RFF2200C 240 oz / 6.08 kg

RFF2500A 67 oz / 1900 g

Nugget Models

UNF0200A 8.5 oz / 240 g

UNF0300A 14.8 oz / 420 g

RNF0620A 18.34 oz / 520 g

RNF0620W 16.9 oz / 480 g

RNF1100A 23.3 oz / 660 g

RNF1100W 18.0 oz / 510 g

RNF1020C 160.0 oz / 4.54 kg

RNF2000C 240.0 oz / 6.08 kg

Model Additional refrigerant required for

51’ to 100’ (15.5 to 30.5 m) line sets

RFF1220C 0 lbs 0 kg

RFF2200C 0 lbs 0 kg

RNF1020C 2 lbs 907g

RNF2000C 0 lbs 0 kg

88 Part Number 000015433_03 5/20

FILTER-DRIERS

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.

Important

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 filter-drier

installed to remove contaminations. 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 End

Connection

Size

All Models UK-165S 5/8 in.

Part Number 000015433_03 5/20 89

Ice Production & Refrigerant Pressure

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 mis-diagnosis.

• 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.

Charts

90 Part Number 000015433_03 5/20

Flake Models

UFF200A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

257 lbs

116 kgs

90°F/70°F

32°C/21°C

198 lbs

90 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

220-250

1517-1724

38-40

262-276

90°F PSIG

32°C kPa

300-320

2068-2206

45-51

310-352

110°F PSIG

43°C kPa

360-390

2482-2689

49-55

338-379

Part Number 000015433_03 5/20 91

RFF0320A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

370 lbs

168 kgs

90°F/70°F

32°C/21°C

286 lbs

130 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

210-255

1448-1758

29-33

200-228

90°F PSIG

32°C kPa

280-325

1930-2241

30-35

207-241

110°F PSIG

43°C kPa

360-395

2482-2723

33-36

228-248

92 Part Number 000015433_03 5/20

UFF0350A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

398 lbs

181 kgs

90°F/70°F

32°C/21°C

328 lbs

149 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

225-270

1551-1862

26-30

179-207

90°F PSIG

32°C kPa

273-315

1882-2172

27-32

186-221

110°F PSIG

43°C kPa

348-380

2399-2620

33-41

228-283

Part Number 000015433_03 5/20 93

RFF0620A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

747 lbs

339 kgs

90°F/70°F

32°C/21°C

506 lbs

230kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

240-265

1655-1827

33-35

228-241

90°F PSIG

32°C kPa

280-300

1930-2068

34-40

235-276

110°F PSIG

43°C kPa

340-370

2344-2551

40-46

275-318

94 Part Number 000015433_03 5/20

RFF0620W

SELF CONTAINED WATER-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

740 lbs

335 kgs

90°F/70°F

32°C/21°C

596 lbs

270 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

270-280

1724-1793

32-35

221-241

90°F PSIG

32°C kPa

270-285

1758-1827

33-36

228-248

110°F PSIG

43°C kPa

275-290

1827-1896

35-37

241-255

Water regulating valve set to 230 psi (1586 kPa)

Part Number 000015433_03 5/20 95

RFF1220C WITH RCUF1200

QUIETQUBE REMOTE CONDENSER AIR COOLED

Characteristics vary depending on operating conditions

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

-20°F/50°F

-29°C/10°C

1413 lbs

641 kgs

70°F/50°F

21°C/10°C

1092 lbs

495 kgs

90°F/70°F

32°C/21°C

958 lbs

435 kgs

120°F/70°F

49°C/21°C

603 lbs

274 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

°F/°C

Freeze Cycle

Discharge Pressure Suction Pressure

50°F PSIG

10°C kPa

185-200

1276-1379

23-28

159-193

70°F PSIG

21°C kPa

225-255

1551-1758

30-35

207-241

80°F PSIG

27°C kPa

230-280

1586-1931

31-36

214-248

90°F PSIG

32°C kPa

243-305

1675-2103

33-38

228-262

120°F PSIG

49°C kPa

355-400

2448-2758

38-43

262-296

96 Part Number 000015433_03 5/20

RFF1300A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

1264 lbs

573 kgs

90°F/70°F

32°C/21°C

950 lbs

431 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

240-280

1655-1930

30-34

207-234

90°F PSIG

32°C kPa

300-350

2068-2413

32-37

221-255

110°F PSIG

43°C kPa

380-425

2620-2930

35-39

241-269

Part Number 000015433_03 5/20 97

RFF1300W

SELF CONTAINED WATER-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

1365 lbs

619 kgs

90°F/70°F

32°C/21°C

1116 lbs

506 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

230-250

1586-1724

29-32

200-221

90°F PSIG

32°C kPa

230-250

1586-1724

30-32

207-221

110°F PSIG

43°C kPa

230-250

1586-1724

30-32

207-221

Water regulating valve set to maintain 240 psi (1655 kPa)

Condenser Water Consumption @ 90°F/70°F

116 Gallons/100 lbs. of Ice

439 Liters/45 kgs. of Ice

98 Part Number 000015433_03 5/20

RFF2200C WITH RCUF2200

QUIETQUBE REMOTE CONDENSER AIR COOLED

Characteristics vary depending on operating conditions

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

-20°F/50°F

-29°C/10°C

2403 lbs

1090 kgs

70°F/50°F

21°C/10°C

2063 lbs

936 kgs

90°F/70°F

32°C/21°C

1702 lbs

772 kgs

120°F/70°F

49°C/21°C

1073 lbs

487 kgs

OPERATING PRESSURES PSIG& kPa

Air Temperature Around

Ice Machine

°F/°C

Freeze Cycle

Discharge

Pressure

Suction

Pressure

50°F PSIG

16°C kPa

175-200

1207-1379

26-31

176-214

70°F PSIG

21°C kPa

220-250

1517-1724

31-36

214-248

80°F PSIG

27°C kPa

225-275

1551-1896

32-37

221-255

90°F PSIG

32°C kPa

250-310

1724-2137

33-38

228-262

120°F PSIG

49°C kPa

365-410

2517-2827

38-43

262-296

Part Number 000015433_03 5/20 99

RFF2500A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

2301 lbs

1044 kgs

90°F/70°F

32°C/21°C

1665 lbs

755 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

290-310

1999-2137

35-38

241-262

90°F PSIG

32°C kPa

350-380

2413-2620

38-43

262-296

110°F PSIG

43°C kPa

410-430

2827-2965

43-49

296-338

100 Part Number 000015433_03 5/20

Nugget Models

UNF0200A

SELF STORAGE AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

231 lbs

97 kgs

90°F/70°F

32°C/21°C

164 lbs

74 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

220-250

1517-1724

38-40

262-276

90°F PSIG

32°C kPa

300-320

2068-2206

45-51

310-352

110°F PSIG

43°C kPa

360-390

2482-2689

49-55

338-379

Part Number 000015433_03 5/20 101

UNF0300A

SELF STORAGE AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

330 lbs

150 kgs

90°F/70°F

32°C/21°C

275 lbs

125 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

243-270

1675-1862

31-36

214-248

90°F PSIG

32°C kPa

273-315

1882-2172

34-39

234-269

110°F PSIG

43°C kPa

348-380

2399-2620

38-43

262-296

102 Part Number 000015433_03 5/20

RNF0320A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 hour

Ice Production

70°F/50°F

21°C/10°C

308 lbs

140 kgs

90°F/70°F

32°C/21°C

236 lbs

107 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

210-255

1448-1758

28-32

193-220

90°F PSIG

32°C kPa

280-320

1931-2206

30-33

207-228

110°F PSIG

43°C kPa

370-405

2551-2792

32-36

220-248

Part Number 000015433_03 5/20 103

RNF0620A

SELF CONTAINED AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

70°F/50°F

21°C/10°C

591 lbs

268 kgs

90°F/70°F

32°C/21°C

451 lbs

204 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Around Ice

Machine

°F/°C

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

215-225

1483-1551

27-29

186-200

90°F PSIG

32°C kPa

280-290

1931-2000

29-31

200-214

110°F PSIG

43°C kPa

360-370

2482-2551

32-34

221-234

104 Part Number 000015433_03 5/20

RNF0620W

WATER-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

70°F/50°F

21°C/10°C

613 lbs

278 kgs

90°F/70°F

32°C/21°C

508 lbs

230 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature Around

Ice Machine

°F/°C

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

235-245

1670-1689

27-29

186-199

90°F PSIG

32°C kPa

235-245

1670-1689

27-29

186-199

110°F PSIG

43°C kPa

240-260

1655-1793

28-32

193-220

Condenser Water Consumption @ 89°F/70°F

109 Gallons/100 lbs. of Ice

413 Liters/45 kgs. of Ice

Water regulating valve set to maintain 240 PSIG - 1655 kPa

Part Number 000015433_03 5/20 105

RNF1020C WITH RCUF1000

QUIETQUBE REMOTE CONDENSER AIR COOLED

Characteristics vary depending on operating conditions

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

-20°F/50°F

-29°C/10°C

1282 lbs

582 kgs

70°F/50°F

21°C/10°C

1116 lbs

506 kgs

90°F/70°F

32°C/21°C

900 lbs

408 kgs

110°F/90°F

43°C/32°C

693 lbs

314 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Around Ice

Machine

°F/°C

Freeze Cycle

Discharge Pressure Suction Pressure

60°F PSIG

16°C kPa

240-250

1655-1724

33-35

227-241

70°F PSIG

21°C kPa

245-265

1689-1827

35-38

241-262

80°F PSIG

27°C kPa

245-270

1689-1862

36-39

248-269

90°F PSIG

32°C kPa

250-270

1724-1862

37-40

255-276

110°F PSIG

43°C kPa

360-400

2482-2758

45-49

310-338

106 Part Number 000015433_03 5/20

RNF1100A

AIR-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

70°F/50°F

21°C/10°C

1078 lbs

489 kgs

90°F/70°F

32°C/21°C

825 lbs

374 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Around Ice

Machine

°F/°C

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

220-240

1517-1655

30-32

207-221

90°F PSIG

32°C kPa

275-310

1896-2137

33-35

228-241

110°F PSIG

43°C kPa

370-390

2551-2689

38-40

262-276

Part Number 000015433_03 5/20 107

RNF1100W

WATER-COOLED

Characteristics vary depending on operating conditions.

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

70°F/50°F

21°C/10°C

1158 lbs

525 kgs

90°F/70°F

32°C/21°C

960 lbs

435 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature Around

Ice Machine

°F/°C

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

235-245

1670-1689

29-31

200-214

90°F PSIG

32°C kPa

235-245

1670-1689

29-31

200-214

110°F PSIG

43°C kPa

240-260

1655-1793

30-36

207-248

Condenser Water Consumption @ 80°F/70°F

131 Gallons/100 lbs. of Ice

496 Liters/45 kgs. of Ice

Water regulating valve set to maintain 240 PSIG - 1655 kPa.

108 Part Number 000015433_03 5/20

RNF2000C

QUIETQUBE REMOTE CONDENSER AIR COOLED

Characteristics vary depending on operating conditions

ICE PRODUCTION

Air Temperature

Water Temperature

24 Hour

Ice Production

-20°F/50°F

-29°C/10°C

2300 lbs

1043 kgs

70°F/50°F

21°C/10°C

1915 lbs

869 kgs

90°F/70°F

32°C/21°C

1476 lbs

670 kgs

120°F/70°F

49°C/21°C

810 lbs

367 kgs

OPERATING PRESSURES PSIG & kPa

Air Temperature

Around Ice

Machine

°F/°C

Freeze Cycle

Discharge Pressure Suction Pressure

-20°F/50°F

-29°C/10°C

160-180 24-34

70°F PSIG

21°C kPa

200-215 28-36

80°F PSIG

27°C kPa

225-250 30-37

90°F PSIG

32°C kPa

250-270 32-38

120°F PSIG

49°C kPa

380-400 40-45

Part Number 000015433_03 5/20 109

Wiring Diagrams

The following pages contain electrical wiring diagrams. Be

sure you are referring to the correct diagram for the ice

machine you are servicing.

Warning

Always disconnect power before working on electrical

circuitry.

Diagrams

110 Part Number 000015433_03 5/20

Flake Models

UFF0200A/UFF350A AIR-COOLED

Refer to Nameplate for Voltage Rating

241304_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 111

Wiring Diagram Legend UFF0200A/UFF0350A Air-cooled

1 Gear motor

2 Compressor

4 Condenser fan motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

12 High temperature limit (snap disc)

13 Fan cycle control

15 Contactor

17 Water level switch

24 On/Off switch

27 Low pressure safety switch

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

112 Part Number 000015433_03 5/20

RFF0320A/RFF0620A AIR-COOLED

Refer to Nameplate for Voltage Rating

241182_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 113

Wiring Diagram Legend RFF0320A/RFF0620A Air-cooled

1 Gear motor

2 Compressor

4 Fan motor

6 Water inlet valve

10 Low water level switch

11 Bin thermostat

13 Fan cycle control

15 Contactor

17 Water level switch

18 Chute safety switch

19 High pressure safety switch

24 On/Off switch

27 Low pressure safety switch

30 Rotation sensor

35 Compressor time delay by-pass

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

114 Part Number 000015433_03 5/20

RFF1220C QUIETQUBE HEAD SECTION

Refer to Nameplate for Voltage Rating

Connections

• A, B, & C connect to a remote panel when used -

Jumper must be removed when remote panel is used

• 1 & 2 connect to line voltage

• 3 & 4 energizes remote condensing unit (RCU)

refrigeration - 2 Amp max

• 5 terminal or junction block located on top of the

junction box.

• 6 junction box at rear of ice machine

See page 140 for condensing unit wiring diagram.

241151_03

Part Number 000015433_03 5/20 115

Wiring Diagram Legend RFF1220C Head Section

1 Gear motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

17 Water level switch

18 Ice chute safety switch

24 On/Off switch

30 Rotation sensor

35 Compressor time delay by-pass

38 Solenoid valve

50 Relay

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

VT Violet

OG Orange

116 Part Number 000015433_03 5/20

RFF1300A AIR-COOLED

Refer to Nameplate for Voltage Rating

2411981_01

See page 145 for compressor start component wiring.

Part Number 000015433_03 5/20 117

Wiring Diagram Legend RFF1300A Air-cooled

1 Gear motor

2 Compressor

4 Fan motor

6 Water inlet valve

10 Low water level switch

11 Bin thermostat

13 Fan cycle control

15 Contactor

17 Water level switch

18 Chute safety switch

19 High pressure safety switch

24 On/Off switch

27 Low pressure safety switch

30 Rotation sensor

35 Compressor time delay bypass

38 Solenoid valve

Wire Color Designation

GY Grey

WH White

BU Blue

BN Brown

BK Black

RD Red

PH Pink

118 Part Number 000015433_03 5/20

RFF1300W WATER-COOLED

Refer to Nameplate for Voltage Rating

BUBU BU

BK BN

See page 145 for compressor start component wiring.

Part Number 000015433_03 5/20 119

Wiring Diagram Legend RFF1300W Water-cooled

1 Gear motor

2 Compressor

6 Water inlet valve

10 Low water level switch

11 Bin thermostat

15 Contactor

17 Water level switch

18 Chute safety switch

19 High pressure safety switch

24 On/Off switch

27 Low pressure safety switch

30 Rotation sensor

35 Compressor time delay bypass

38 Solenoid valve

Wire Color Designation

GY Grey

WH White

BU Blue

BN Brown

BK Black

RD Red

PH Pink

120 Part Number 000015433_03 5/20

RNF2000C QUIETQUBE HEAD SECTION

Refer to Nameplate for Voltage Rating

Connections

• A, B, & C connect to a remote panel when used -

Jumper must be removed when remote panel is used

• 1 & 2 connect to line voltage

• 3 & 4 energizes remote condensing unit (RCU)

refrigeration - 2 Amp max

See page 140 for condensing unit wiring diagram.

BU BU

GYGY

WH GY

RDBU

241152_04

11 18

3030

3535

Part Number 000015433_03 5/20 121

Wiring Diagram Legend RNF2000C Head Section

1 Gear Motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

17 Water level switch

18 Ice chute safety switch

24 On/Off switch

30 Rotation sensor

35 Compressor time delay by-pass

38 Solenoid Valve

50 Relay

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

OG Orange

122 Part Number 000015433_03 5/20

RFF2200C QUIETQUBE HEAD SECTION

Refer to Nameplate for Voltage Rating

Connections

• A, B, & C connect to a remote panel when used -

Jumper must be removed when remote panel is used

• 1 & 2 connect to line voltage

• 3 & 4 energizes remote condensing unit (RCU)

refrigeration - 2 Amp max

241152_04

See page 140 for condensing unit wiring diagram.

Part Number 000015433_03 5/20 123

Wiring Diagram Legend RFF2200C Head Section

1 Gear motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

17 Water level switch

18 Ice chute safety switch

24 On/Off switch

30 Rotation sensor

35 Compressor time delay by-pass

38 Solenoid valve

50 Relay

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

OG Orange

124 Part Number 000015433_03 5/20

RFF2500A AIR-COOLED

Refer to Nameplate for Voltage Rating

Connections

• A & B connect to a remote panel when used - Jumper

must be removed when remote panel is used

• C & D energize a remote alarm indication when used

241142_02

See page 145 for compressor start component wiring.

Part Number 000015433_03 5/20 125

Wiring Diagram Legend RFF2500A Air-Cooled

1 Gear motor

2 Compressor

4 Condenser fan motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

13 Fan cycle control

15 Contactor

17 Water level switch

18 Ice chute safety switch

19 High pressure safety switch

21 Compressor relay

24 On/Off switch

25 Compressor time delay

27 Low pressure cut out

29 Compressor time delay relay

30 Rotation sensor

35 Compressor time delay by-pass

37 Remote indicator panel terminals

38 Solenoid valve

Rc Compressor crankcase heater

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

126 Part Number 000015433_03 5/20

Nugget Models

UNF0200A/UNF0300A AIR-COOLED

Refer to Nameplate for Voltage Rating

24683_05

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 127

Wiring Diagram Legend UNF0200A/UNF0300A Air-cooled

1 Gear Motor

2 Compressor

4 Condenser fan motor

6 Water Inlet valve

7 Evaporator low temperature safety thermostat

10 Low water level safety

11 Bin thermostat

12 High temperature limit (snap disc)

13 Fan cycle control

15 Contactor

17 Water level switch

21 Compressor relay

24 On/Off switch

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

128 Part Number 000015433_03 5/20

RNF0320A AIR-COOLED

Refer to Nameplate for Voltage Rating

241289_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 129

Wiring Diagram Legend RNF0320A Air-cooled

1 Gear Motor

2 Compressor

4 Condenser fan motor

6 Water inlet valve

7 Evaporator low temperature safety thermostat

10 Low water level safety

11 Bin thermostat

13 Fan cycle control

15 Contactor

17 Water level switch

18 Ice chute safety switch

24 On/Off switch

25 Compressor time delay

35 Compressor time delay by-pass

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

130 Part Number 000015433_03 5/20

RNF0620A AIR-COOLED

Refer to Nameplate for Voltage Rating

BU BU BU

BK BN

241182_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 131

Wiring Diagram Legend RNF0620A Air-cooled

1 Gear Motor

2 Compressor

4 Condenser fan motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

13 Fan cycle control

15 Contactor

17 Water level switch

18 Ice chute safety switch

19 High pressure cut out

24 On/Off switch

27 Low pressure cut out

30 Rotation sensor

35 Compressor time delay by-pass

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PH Pink

132 Part Number 000015433_03 5/20

RNF0620W WATER-COOLED

Refer to Nameplate for Voltage Rating

241182_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 133

Wiring Diagram Legend RNF0620W Water-cooled

1 Gear Motor

2 Compressor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

15 Contactor

17 Water level switch

18 Ice chute safety switch

19 High pressure cut out

24 On/Off switch

27 Low pressure cut out

30 Rotation sensor

35 Compressor time delay by-pass

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

134 Part Number 000015433_03 5/20

RNF1020C QUIETQUBE HEAD SECTION

Refer to Nameplate for Voltage Rating

Connections

• A, B, & C connect to a remote panel when used -

Jumper must be removed when remote panel is used

• 1 & 2 connect to line voltage

• 3 & 4 energizes remote condensing unit (RCU)

refrigeration - 2 Amp max

• 5 terminal or junction block located on top of the

junction box.

• 6 junction box at rear of ice machine

241151_03

See page 140 for condensing unit wiring diagram.

Part Number 000015433_03 5/20 135

Wiring Diagram Legend RNF1020C Head Section

1 Gear Motor

6 Water inlet valve

10 Low water level switch

11 Bin thermostat

17 Water level switch

18 Chute safety switch

21 Relay

24 On/Off switch

30 Rotation sensor

35 Compressor time delay by-pass (Service Staff only)

38 Solenoid Valve

Wire Color Designation

A Orange

B White

BL Blue

G Grey

M Brown

N Black

R Red

V Violet

136 Part Number 000015433_03 5/20

RNF1100A AIR-COOLED

Refer to Nameplate for Voltage Rating

241198_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 137

Wiring Diagram Legend RNF1100A Air-cooled

1 Gear Motor

2 Compressor

4 Condenser fan motor

6 Water inlet valve

10 Low water level safety

11 Bin thermostat

13 Fan cycle control

15 Contactor

17 Water level switch

18 Ice chute safety switch

19 High pressure cut out

24 On/Off switch

27 Low pressure cut out

30 Rotation sensor

35 Compressor time delay by-pass

38 Solenoid

Wire Color Designation

B White

BL Blue

G Grey

M Brown

N Black

R Red

RS Pink

138 Part Number 000015433_03 5/20

RNF1100W WATER-COOLED

Refer to Nameplate for Voltage Rating

241198_01

See page 144 for compressor start component wiring.

Part Number 000015433_03 5/20 139

Wiring Diagram Legend RNF1100W Water-Cooled

1 Gear Motor

2 Compressor

6 Water inlet Valve

10 Low Water Level Switch

11 Bin Thermostat

15 Contactor

17 Water level switch

18 Chute safety switch

19 High pressure safety switch

24 On/Off switch

27 Low pressure safety switch

30 Rotation sensor

35 Compressor time delay by-pass (Service staff only)

38 Solenoid Valve

Wire Color Designation

WH White

BU Blue

GY Grey

BN Brown

BK Black

RD Red

PK Pink

140 Part Number 000015433_03 5/20

Condensing Units

RCUF CONDENSING UNIT 1PH

Refer to Nameplate for Voltage Rating

000015813_00

Part Number 000015433_03 5/20 141

Wiring Diagram Legend RCUF Condensing Unit

1 High pressure cutout control

2 Thermostat - Receiver heater

3 Receiver heater

RCUF1200 1 heater - RCUF1000 2 heaters

4 Low pressure cutout control

5 Contactor coil

6 Contactor contacts

7 Condenser fan motor

8 Condenser fan motor run capacitor

9 Compressor

10 Compressor overload

11 Compressor run capacitor

12 Compressor relay

13 Compressor start capacitor

Wire Color Designation

BLK Black

YEL Yellow

RED Red

Compressor Windings

C Common winding

S Start winding

R Run winding

142 Part Number 000015433_03 5/20

RCUF CONDENSING UNIT 3PH

Refer to Nameplate for Voltage Rating

000015813_00

Part Number 000015433_03 5/20 143

Wiring Diagram Legend RCUF Condensing Unit

1 High pressure cutout control

2 Thermostat - Receiver heater

3 Receiver heater

4 Low pressure cutout control

5 Contactor coil

6 Contactor contacts

7 Condenser fan motor

8 Condenser fan motor run capacitor

9 Compressor

144 Part Number 000015433_03 5/20

Compressor Start Component Wiring

UFF0200/UNF0200

UNF0300/RFF0320/UFF0350/UNF0350/RFF0620

(C)

(S)(R)

(YEL)

(C)

(S)(R)

(YEL)

BLU

Part Number 000015433_03 5/20 145

RFF1300/RFF2500

Compressor Wiring Legend

50 Compressor

51 Run Capacitor

52 Start Capacitor

53 Relay

54 Overload

(YEL)

(C)

(S)(R)

(YEL)

BLU

THIS PAGE INTENTIONALLY LEFT BLANK

146 Part Number 000015433_03 5/20

Part Number 000015433_03 5/20 147

Refrigeration Tubing Schematics

UFF0200/UFF0350/UNF0200/UNF0300

Tubing Diagram Legend

1 Compressor

2 Condenser

3 Liquid Line Drier

4 Capillary tube

5 Accumulator

6 Heat Exchanger

7 Evaporator

148 Part Number 000015433_03 5/20

RFF0320/RNF0320 AIR-COOLED

Tubing Diagram Legend

1 Compressor

2 Condenser

3 Liquid Line Drier

4 Heat Exchanger

5 Automatic Expansion Valve

6 Evaporator

Part Number 000015433_03 5/20 149

RFF0620/RNF0620/RNF1100 AIR & WATER-COOLED

Tubing Diagram Legend

1 Compressor

2 Condenser (Air or Water-cooled)

3 Liquid Line Drier

4 Liquid Line Solenoid Valve

5 Suction Accumulator

6 Thermostatic Expansion Valve

7 Liquid Accumulator

8 Evaporator

150 Part Number 000015433_03 5/20

RNF1020C QUIETQUBE HEAD SECTION & RCUF1000

CONDENSING UNIT

Part Number 000015433_03 5/20 151

Tubing Diagram Legend

1 Compressor

2 Check Valve

3 Head Pressure Control Valve

4 Condenser (air or water cooled)

5 Receiver

6 Condensing unit Liquid Line Drier

7 Liquid Line Shut-off Valve

8 Ice Machine Liquid Line Drier

9 Liquid Line Solenoid Valve

10 Thermostatic Expansion Valve

11 Evaporator

12 S Trap (20’ + Rise Only)

13 Suction Line Shut-off Valve

14 Suction Line Filter

15 Suction Accumulator

152 Part Number 000015433_03 5/20

RFF1220C & RCUF1000 CONDENSING UNIT

Part Number 000015433_03 5/20 153

RFF1220C & RCUF1000 Tubing Diagram Legend

1 Compressor

2 Check Valve

3 Head Pressure Control Valve

4 Condenser (air or water cooled)

5 Receiver

6 Condensing Unit Liquid Line Drier

7 Liquid Line Shut-off Valve

8 Ice Machine Liquid Line Drier

9 Liquid Line Solenoid Valve

10 Thermostatic Expansion Valve

11 Evaporator

12 Suction Line Shut-off Valve

13 Suction Line Filter

14 Suction Accumulator

NOTE: Dotted rectangle indicates ice machine head

section.

154 Part Number 000015433_03 5/20

RNF2000C QUIETQUBE HEAD SECTION & RCUF2200

CONDENSING UNIT

11 11

Part Number 000015433_03 5/20 155

Tubing Diagram Legend

1 Compressor

2 Check Valve

3 Head Pressure Control Valve

4 Condenser (air or water cooled)

5 Receiver

6 Condensing Unit Liquid Line Drier

7 Liquid Line Shut-off Valve

8 Ice Machine Liquid Line Drier

9 Liquid Line Solenoid Valve

10 Thermostatic Expansion Valve

11 Evaporator

12 Liquid Accumulator

13 Suction Line Shut-off Valve

14 Suction Line Filter

15 Suction Accumulator

156 Part Number 000015433_03 5/20

RFF2200C QUIETQUBE HEAD SECTION & RCUF2200

CONDENSING UNIT

12 12

Part Number 000015433_03 5/20 157

Tubing Diagram Legend

1 Compressor

2 Check Valve

3 Head Pressure Control Valve

4 Condenser (air or water cooled)

5 Receiver

6 Condensing unit Liquid Line Drier

7 Liquid Line Shut-off Valve

8 Ice Machine Liquid Line Drier

9 Liquid Line Solenoid Valve

10 Thermostatic Expansion Valve

11 Liquid Accumulator

12 Evaporator

13 Suction Line Shut-off Valve

14 Suction Line Filter

15 Suction Accumulator

158 Part Number 000015433_03 5/20

RFF1300 AIR & WATER-COOLED

Tubing Diagram Legend

1 Compressor

2 Condenser

3 Liquid Line Drier

4 Liquid Line Solenoid Valve

5 Suction Accumulator

6 Thermostatic Expansion Valve

7 Liquid Accumulator

8 Evaporator

Part Number 000015433_03 5/20 159

RFF2500 AIR-COOLED

Tubing Diagram Legend

1 Compressor

2 Condenser

3 Liquid Line Drier

4 Liquid Line Solenoid Valve

5 Suction Accumulator

6 Thermostatic Expansion Valve

7 Liquid Accumulator

8 Evaporator

THIS PAGE INTENTIONALLY LEFT BLANK

160 Part Number 000015433_03 5/20

MANITOWOC ICE

2110 SOUTH 26TH STREET

MANITOWOC, WI 54220

844-724-2273

WWW.MANITOWOCICE.COM

Part Number 000015433_03 5/20

Manitowoc RFF0620A161 22" Air Cooled Modular Flake Ice Machine

Product's Documents

User Manual

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Manitowoc RFF0620A161 Questions and Answers

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