Compact CMS050A004 User manual

CM050
CM Model
Ice Machines
This manual is updated as new
Information and models are released
Visit our website for the latest manual:
www.compact-ice.com
STH003
06/06
©Manitowoc Ice, Inc.

2
Safety Notices
When using or servicing these Ice Machines, 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 ice machine.
Throughout this handbook, you will see the following
types of safety notices:
WARNING
Text in a Warning box alerts you to a potential
personal injury situation. Be sure to read the
Warning statement before proceeding, and work
carefully.
CAUTION
Text in a Caution box alerts you to a situation in
which you could damage the ice machine. Be sure
to read the Caution statement before proceeding,
and work carefully.

3
Procedural Notices
When using or servicing these Ice Machines, be sure
to read the procedural notices in this handbook. These
notices supply helpful information that may assist you
as you work.
Throughout this handbook, you will see the following
types of procedural notices:
IMPORTANT
Text in an Important box provides you with
information that may help you perform a procedure
more efficiently. Disregarding this information will
not cause damage or injury, but may slow you
down as you work.
NOTE: Text set off as a Note provides you with
simple, but useful extra information about the
procedure you are performing.

4
Read These Before Proceeding:
CAUTION
Proper installation, care and maintenance are
essential for maximum ice production and trouble
free operation of your Compact Ice Machine. Read
and understand this manual. If you encounter
problems not covered by this manual, do not
proceed, contact Manitowoc Ice, Inc. We will be
happy to provide assistance.
IMPORTANT
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
We reserve the right to make product improvements at
any time. Specifications and design are subject to
change without notice.
WARNING
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been, misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
WARNING
POTENTIAL PERSONAL INJURY SITUATION
This ice machine contains refrigerant charge.
Installation and brazing of the line sets must be
performed by a properly trained refrigeration
technician aware of the Dangers of dealing with
refrigerant charged equipment. The technician
must also be US Government Environmental
Protection Agency (EPA) certified in proper
refrigerant handling and servicing procedures.

5
TABLE OF CONTENTS
GENERAL INFORMATION............................. 7
MODEL NUMBERS.....................................7
ACCESSORIES...........................................8
MODEL/SERIAL NUMBER LOCATION .......9
OWNER WARRANTY REGISTRATION........... 9
INSTALLATION .......................................... 13
LOCATION OF ICE MACHINE ..................13
ICE MACHINE HEAT OF REJECTION ......14
LEVELING THE ICE MACHINE ................15
WATER SERVICE/DRAINS .......................16
ELECTRICAL REQUIREMENTS................18
COMPONENT IDENTIFICATION ..............19
OPERATIONAL CHECKS ........................19
MAINTENANCE .......................................... 23
ICE MACHINE INSPECTION ....................23
EXTERIOR CLEANING.............................23
CLEANING THE CONDENSER .................23
INTERIOR CLEANING AND SANITIZING.25
CLEANING PROCEDURE .........................28
REMOVAL OF PARTS FOR CLEANING AND
SANITIZING.............................................31
ICE MAKING SEQUENCE OF OPERATION.. 39
TROUBLESHOOTING ................................. 41
DIAGNOSING AN ICE MACHINE THAT
WILL NOT RUN........................................41
ICE MACHINE WILL NOT HARVEST........43
ICE QUALITY IS POOR – CUBES ARE
SHALLOW, INCOMPLETE OR WHITE ......44
FREEZE CYCLE IS LONG, LOW ICE
PRODUCTION ..........................................45
ICE MACHINE RUNS & NO ICE IS
PRODUCED..............................................46
ANALYZING DISCHARGE PRESSURE.....47
ANALYZING SUCTION PRESSURE .........49

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HOT GAS VALVE..................................... 52
BIN THERMOSTAT.................................. 55
ICE PRODUCTION CHECK ...................... 57
ADJUSTING CUBE WEIGHT ................... 58
LIQUID LINE THERMISTOR .................... 59
TOTAL SYSTEM REFRIGERATION
CHARGE.................................................. 61
COMPONENT SPECIFICATIONS AND CHECK
PROCEDURES ............................................ 62
MAIN FUSE ............................................. 62
COMPRESSOR ELECTRICAL
DIAGNOSTICS......................................... 63
DIAGNOSING START COMPONENTS: .... 65
CYCLE TIMES, 24 HR ICE PRODUCTION AND
REFRIGERANT PRESSURE CHARTS .......... 66
REFRIGERANT DEFINITIONS ..................... 68
REFRIGERANT RE-USE POLICY ............. 69
SYSTEM CONTAMINATION CLEANUP ... 75
SEVERE SYSTEM CONTAMINATION
CLEANUP PROCEDURE ..................ERROR!
BOOKMARK NOT DEFINED.
REPLACING PRESSURE CONTROLS
WITHOUT REMOVING REFRIGERANT
CHARGE.................................................. 80
BRAZING PROCEDURES FOR DANFOSS
SOLENOID VALVES ................................ 82
FILTER-DRIERS....................................... 84
CONTROL BOARD ...................................... 85
WIRING DIAGRAMS .................................... 88
TUBING SCHEMATIC.................................. 87

7
GENERAL INFORMATION
MODEL NUMBERS
This manual covers the following models:
CMS050A004
WARNING
An ice machine contains high voltage electricity
and refrigerant charge. Repairs are to be
performed by properly trained refrigeration
technicians aware of the dangers of dealing with
high voltage electricity and refrigerant under
pressure.

8
ACCESSORIES
Visit our website at: www.compact-ice.com for these
optional accessories:
LEGS
Four inch adjustable legs are available.
DRAIN PUMP
Pumps waste water from ice machine to drain.
MANITOWOC ICE MACHINE CLEANER AND
SANITIZER
These are the only cleaner and sanitizer approved for
use with Compact products.
Cleaner Part Number Sanitizer Part Number
16oz 000000084 16oz 94-0565-3
CAUTION
Use only Manitowoc approved Ice Machine
Cleaner (part number 94-0546-3 original green
ice machine cleaner or 000000084 clear metal
safe ice machine cleaner) and Sanitizer (part
number 94-0565-3). 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.

9
MODEL/SERIAL NUMBER LOCATION
The model and serial numbers are required when
requesting information from your local Compact retailer
or Compact Ice at 800-235-9698. The model and serial
number are listed on the MODEL/SERIAL NUMBER
DECAL affixed to the ice machine
MODEL/SERIAL
NUMBER DECAL
MODEL/SERIAL
NUMBER DECAL

10
OWNER WARRANTY REGISTRATION
CARD
GENERAL
The packet containing this manual also includes
warranty information. Warranty coverage begins the
day you purchase your new ice machine.
Compact CM Series
Limited Ice Machine Warranty
Subject to the exclusions and limitations below,
Manitowoc Ice, Inc. (“Manitowoc Ice”) warrants this
CM Series Ice Machine (the “Product”) against
defects in material or workmanship as follows:
1. Labor. For a period of ninety (90) days from the
date of purchase by the consumer (“Purchaser”),
if the Product is determined to be defective,
Manitowoc Ice shall, at its option, replace the
Product or pay the labor charges to any authorized
Manitowoc Ice service facility to repair the
Product. After expiration of the ninety day (90)
period referred above, the Purchaser must pay all
labor charges.
2. Parts. In addition, for a period of twelve (12)
months from the date of purchase by the
Purchaser, if the Product is determined to be
defective, Manitowoc Ice shall, at its option,
replace the Product or provide new or rebuilt
replacement parts for the Product at no charge.
REPAIR OR REPLACEMENT AS PROVIDED ABOVE
IS THE PURCHASER’S SOLE AND EXCLUSIVE
REMEDY UNDER THIS LIMITED WARRANTY.