Manitowoc RF0244 User manual

Technician’s
Handbook
This manual is updated as new information and models
are released. Visit our website for the latest manual.
www.manitowocice.com
America’s #1 Selling Ice Machine
Manitowoc
R Model
Flake & Nugget
Part Number 000007661 7/10

Read These Before Proceeding:
!Caution
Proper installation, care and maintenance are
essential for maximum performance and trouble-
free operation of your Manitowoc equipment. If
you encounter problems not covered by this
handbook, do not proceed, contact Manitowoc
Foodservice Group. We will be happy to provide
assistance.
Important
Routine adjustments and maintenance
procedures outlined in this handbook are not
covered by the warranty.
!Warning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been
misused, abused, neglected, damaged, or
altered/modified from that of original
manufactured specifications.
This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or
lack of experience and knowledge, unless
they have been given supervision
concerning use of the appliance by a person
responsible for their safety.
We reserve the right to make product
improvements at any time. Specifications and
design are subject to change without notice.

Part Number 000007661 7/10 3
Table of Contents
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . .7
Self Contained
Air & Water-Cooled Models . . . . . . . . .7
QuietQube Remote Air-cooled Models with
Remote Condensing Units . . . . . . . . .7
Model/Serial Number . . . . . . . . . . . . . . . .8
Manitowoc Cleaner and Sanitizer . . . . . .8
Ice Machine Warranty Information . . . . .8
Installation
Location of Ice Machine . . . . . . . . . . . . . .9
Installation Requirements . . . . . . . . . . . .9
Potable Water Requirements . . . . . . . . . .10
Drain Connections . . . . . . . . . . . . . . . . . .10
Ice Machine Clearance Requirements . .11
Cooling Tower Applications
(Water-Cooled Models Only) . . . . . . . . . .12
Heat of Rejection . . . . . . . . . . . . . . . . . . .13
RF Models . . . . . . . . . . . . . . . . . . . . . .13
RN Models . . . . . . . . . . . . . . . . . . . . .13
Electrical Service . . . . . . . . . . . . . . . . . . .13
Voltage . . . . . . . . . . . . . . . . . . . . . . . .13
Fuse/Circuit Breaker . . . . . . . . . . . . . .14
Ground Fault Interrupter Circuit (GFIC) 14
Maintenance
Cleaning and Sanitizing . . . . . . . . . . . . . .15
Exterior Cleaning . . . . . . . . . . . . . . . . .15
RF Models Cleaning/
Sanitizing Procedures . . . . . . . . . . . . .16
RN Models Cleaning/
Sanitizing Procedure . . . . . . . . . . . . . .22
Cleaning the Condenser . . . . . . . . . . .24
Removal from Service/Winterization . . .25

4 Part Number 000007661 7/10
Operation
Ice Making Sequence of Operation . . . . 27
Self-Contained Air-Cooled
RF0244/RF0266/RF0385/
RF0388/RF0399 . . . . . . . . . . . . . . . . . 27
Self-Contained Air-Cooled
RF0300 . . . . . . . . . . . . . . . . . . . . . . . . 27
Self-Contained Air-Cooled
RF0650/RF1200/RF2300 . . . . . . . . . . 28
QuietQube Remote Air-cooled Models with
Remote Condensing Units
RF1200C/RF2300C . . . . . . . . . . . . . . 29
Self-Contained Air-cooled &
Water-Cooled RN0400 . . . . . . . . . . . . 30
Self-Contained Air-Cooled &
Water-Cooled RN1000/RN1400 . . . . . 31
QuietQube Remote Air-cooled Models with
Remote Condensing Units
RN1000C/RN1200C . . . . . . . . . . . . . . 32
Thermostat Settings . . . . . . . . . . . . . . . . 34
RF Models . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting
Electrical Flowcharts . . . . . . . . . . . . . . . . 37
RF0244/RF0266RF0385//RF00388/
RF0399 Air & Water . . . . . . . . . . . . . . 38
RF0300 Air & Water . . . . . . . . . . . . . . 43
RF0650/RF1200 Air & Water . . . . . . . 48
RF2300 Air & Water . . . . . . . . . . . . . . 53
RN1000/RN1400 Air & Water . . . . . . . 60
RN1000C/RN1200C QuietQube . . . . . 68
RF1200C QuietQube . . . . . . . . . . . . . 78
RF2300C QuietQube . . . . . . . . . . . . . 84
Capillary Tube Models . . . . . . . . . . . . . . . 91
Thermostatic Expansion Valve Models . 92

Part Number 000007661 7/10 5
Component Specifications
Bin Thermostat . . . . . . . . . . . . . . . . . .93
Low Temperature Thermostat . . . . . . .93
High Pressure Cutout (HPCO) Control 93
Low Pressure Cutout (LPCO) Control .94
Fan Cycle Control . . . . . . . . . . . . . . . .94
Filter-Driers . . . . . . . . . . . . . . . . . . . . .95
Suction Cleanup Filter-Drier . . . . . . . .95
Total System Refrigerant Charge . . . .96
Charts
Cycle Times/24-Hour Ice Production/
Refrigerant Pressure Charts . . . . . . . . . .97
RF0244A . . . . . . . . . . . . . . . . . . . . . . .98
RF0266A . . . . . . . . . . . . . . . . . . . . . . .99
RF0385A . . . . . . . . . . . . . . . . . . . . . . .100
RF0388A . . . . . . . . . . . . . . . . . . . . . . .101
RF0399A . . . . . . . . . . . . . . . . . . . . . . .102
RF0300A . . . . . . . . . . . . . . . . . . . . . . .103
RF0650A . . . . . . . . . . . . . . . . . . . . . . .104
RF1200A . . . . . . . . . . . . . . . . . . . . . . .105
RF1200W . . . . . . . . . . . . . . . . . . . . . .106
RF2300A . . . . . . . . . . . . . . . . . . . . . . .107
RF2300W . . . . . . . . . . . . . . . . . . . . . .108
RN1000A . . . . . . . . . . . . . . . . . . . . . . .109
RN1000W . . . . . . . . . . . . . . . . . . . . . .110
RN1400A . . . . . . . . . . . . . . . . . . . . . . .111
RN1400W . . . . . . . . . . . . . . . . . . . . . .112
RN1078C . . . . . . . . . . . . . . . . . . . . . .113
RN1278C . . . . . . . . . . . . . . . . . . . . . .114
RF1278C . . . . . . . . . . . . . . . . . . . . . . .115
RF2378C . . . . . . . . . . . . . . . . . . . . . . .116

6 Part Number 000007661 7/10
Diagrams
Wiring Diagrams . . . . . . . . . . . . . . . . . . . 117
RF0244/RF0266/RF0385/
RF0388/RF0399 Air-Cooled . . . . . . . . 118
RF0300 Air-Cooled . . . . . . . . . . . . . . . 120
RF0650 - RF1200 Air-Cooled . . . . . . . 122
RF1200 Water-Cooled . . . . . . . . . . . . 124
RF2300 Air-Cooled & Water-cooled . . 126
RN1000/RN1400 Air & Water Cooled 128
RN1000C QuietQube Head Section . . 129
RN1200C QuietQube Head Section . . 130
RN2300C QuietQube Head Section . . 132
RCU Condensing Unit 1ph . . . . . . . . . 134
RCU Condensing Unit 3ph . . . . . . . . . 135
Refrigeration Tubing Schematics . . . . . 136
RF0244/RF0266/RF0388/RF0399
RF0300/RF0650 Air-cooled . . . . . . . . 136
RF1200 Air-cooled . . . . . . . . . . . . . . . 138
RF1200 Water-cooled . . . . . . . . . . . . 140
RF2300 Air-cooled . . . . . . . . . . . . . . . 142
RF2300 Water-cooled . . . . . . . . . . . . 144
RN1000/RN1400 Air & Water-cooled . 146
RN1000C QuietQube Head Section &
RCU1075 Condensing Unit . . . . . . . . 148
RN1200C QuietQube Head Section &
RCU1275 Condensing Unit . . . . . . . . 150
RN2300C QuietQube Head Section &
RCU2375 Condensing Unit . . . . . . . . 152

Part Number 000007661 7/10 7
General Information
Model Numbers
SELF CONTAINED
AIR & WATER-COOLED MODELS
QUIETQUBE REMOTE AIR-COOLED MODELS
WITH REMOTE CONDENSING UNITS
Flake Models
Self Storage
Air-Cooled Self Storage Water-Cooled Modular
Air-Cooled
Modular
Water-
Cooled
RF0244A – – –
RF0266A – – –
RF0385A – – –
RF0388A – – –
RF0399A – – –
– – RF0300A –
– – RF0650A –
– – RF1200A –
– – RF2300A –
Nugget Models
Self Storage
Air-Cooled Self Storage Water-Cooled Modular
Air-Cooled
Modular
Water-
Cooled
– – RN1008A RN1009W
– – RN1408A RN1409W
Flake Models
QuietQube Head RCU Remote
Condensing Unit
RF1278C RCU1275
RF2378C RCU2375
Nugget Models
QuietQube Head RCU Remote
Condensing Unit
RN1078C RCU1075
RN1278C RCU1275

8 Part Number 000007661 7/10
Model/Serial Number
These numbers are required when requesting
information from your local Manitowoc Distributor, or
Manitowoc Ice. The model and serial number are
listed on the MODEL/SERIAL NUMBER DECAL
affixed to the ice machine.
Manitowoc Cleaner and Sanitizer
Manitowoc Ice Machine Cleaner and Sanitizer are
available in 16 oz. (473 ml) bottles. These are the only
cleaners and sanitizers approved for use with
Manitowoc products.
Ice Machine Warranty Information
Warranty information for all ice machine models is
available on our website at www.manitowocice.com.
Cleaner Part Number Sanitizer Part Number
16 oz. 000000084 16 oz. 9405653
1 gal N/A 1 gal. 9405813

Part Number 000007661 7/10 9
Installation
Location of Ice Machine
The location selected for the ice machine must meet
the following criteria. If any of these criteria are not
met, select another location.
• The location must be free of airborne and other
contaminants.
• The location must not be near heat-generating
equipment or in direct sunlight.
• The location must be capable of supporting the
weight of the ice machine and a full bin of ice.
• The location must allow enough clearance for
water, drain and electrical connections in the rear
of the ice machine.
• The location must not obstruct airflow through or
around the ice machine.
Installation Requirements
• The air temperature must be at least 50°F (10°C),
but must not exceed 110°F (43°C).
• The water temperature must be at least 40°F
(4°C), but must not exceed 90°F (32°C).
• The ice machine and bin must be level.
• Vent the ice machine and bin drains separately.
• Bin drain termination must have an air gap.
• RF Models Only: A backflow preventer is required
on water inlet lines.
• Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.

10 Part Number 000007661 7/10
Potable Water Requirements
• Plumbing must conform to local codes.
• Do not connect the ice machine to a hot water
supply. Be sure all hot water restrictors installed for
other equipment are working. (Check valves on
sink faucets, dishwashers, etc.)
• If water pressure exceeds maximum pressure
(70 psig [483 kPa] RN1000; 80 psig [552 kPa] for
all other models) obtain a water pressure regulator
from your Manitowoc distributor.
• A water shut-off valve is required to clean the ice
machine.
• A union for both the ice making and condenser
water lines is required.
• Water inlet lines require insulation to prevent
condensation.
• RF Models: A backflow preventer is required on
water inlet lines.
Drain Connections
• Drain lines must have a 1.5 inch drop per 5 feet of
run (2.5 cm per meter), and must not create traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Separate insulated bin and water-cooled
condenser drain lines are required.
• The bin and ice machine drains require a vent.