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

6

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.

11

This limited warranty only applies to the original

Purchaser of the Product and is not transferable. This

limited warranty is valid only in the United States. This

limited warranty does not apply to: (1) any cost or

expense associated with shipping, accessing,

removing, installing or reinstalling the Product to obtain

warranty service, including, without limitation,

expenses related to remodeling or repairing any

flooring, cabinetry or the like; (2) periodic or routine

maintenance; (3) repair or replacement of the Product

or parts due to normal wear and tear; (4) defects or

damage to the Product or parts resulting from misuse,

abuse, neglect, or accidents; (5) defects or damage to

the Product or parts resulting from improper or

unauthorized alterations, modifications, or changes; (6)

any Product that has not been installed in accordance

with the instruction manual or technical instructions

provided by Manitowoc Ice; and (7) any Product that

has not been maintained, cleaned or sanitized in

accordance with the instruction manual or technical

instructions provided by Manitowoc Ice. To the extent

that warranty exclusions are not permitted under some

state laws, these limitations or exclusions may not

apply to you.

EXCEPT AS STATED IN THE FOLLOWING

SENTENCE, THIS LIMITED WARRANTY IS THE

SOLE AND EXCLUSIVE WARRANTY OF

MANITOWOC ICE WITH REGARD TO THE

PRODUCT. ALL IMPLIED WARRANTIES ARE

STRICTLY LIMITED TO THE DURATION OF THE

LIMITED WARRANTY APPLICABLE TO THE

PRODUCTS AS STATED ABOVE, INCLUDING BUT

NOT LIMITED TO, ANY WARRANTY OF

MERCHANTABILITY OR OF FITNESS FOR A

PARTICULAR PURPOSE. Some states do not allow

limitations on how long an implied warranty lasts, so

the above limitation may not apply to you.

12

IN NO EVENT SHALL MANITOWOC ICE OR ANY OF

ITS AFFILIATES BE LIABLE TO THE PURCHASER

OR ANY OTHER PERSON FOR ANY INCIDENTIAL,

CONSEQUENTIAL OR SPECIAL DAMAGES OF ANY

KIND ARISING FROM OR IN ANY MANNER

CONNECTED WITH THE PRODUCT, ANY BREACH

OF THIS LIMITED WARRANTY, OR ANY OTHER

CAUSE. Some states do not allow the exclusion or

limitation of incidental or consequential damages, so

the above limitation or exclusion may not apply to you.

This limited warranty gives the Purchaser specific legal

rights, and the Purchaser may also have rights that

vary from state to state or from one jurisdiction to

another. To obtain warranty service or information

regarding the Product, please contact us at:

MANITOWOC ICE, INC.

2110 So. 26th Street

P.O. Box 1720

Manitowoc, WI 54221-1720

Telephone: 800-235-9698

In order to obtain warranty service, the Purchaser must

present proof of purchase which shows that the

Purchaser was the original purchaser and that the

Product is within the warranty periods described

above.

To secure prompt and continuing warranty service, the

warranty registration card must be completed and sent

to Manitowoc Ice within thirty (30) days from the date

of purchase by the Purchaser. Complete the enclosed

registration card and send it to Manitowoc Ice at the

address shown above. Retain a copy for your record.

13

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 indoors.

• The location must be free of airborne and other

contaminants.

• Air temperature: must be at least 50ºF (10ºC) but

must not exceed 110ºF (43ºC).

• 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 (condenser airflow is in

and out the front). Refer to the chart below for

clearance requirements.

Self-Contained

Air-Cooled

Self-Contained

Water-Cooled

Top/Sides 5" (127 mm)* 5" (127 mm)*

Back 5" (127 mm)* 5" (127 mm)*

*NOTE: The ice machine may be built into a cabinet.

There is no minimum clearance requirement for the top

or left and right sides of the ice machine. The listed

values are recommended for efficient operation and

servicing only.

CAUTION

The ice machine must be protected if it will be

subjected to temperatures below 32 F (0 C). Failure

caused by exposure to freezing temperatures is not

covered by the warranty.

14

ICE MACHINE HEAT OF REJECTION

Heat of Rejection*

Air Conditioning** Peak

1,145 2,300

* B.T.U./Hour

** Because the heat of rejection varies during the

ice making cycle, the figure shown is an

average.

Ice machines, like other refrigeration equipment, reject

heat through the condenser. It is helpful to know the

amount of heat rejected by the ice machine when

sizing air conditioning equipment where self-contained

air-cooled ice machines are installed.

15

LEVELING THE ICE MACHINE

After moving the ice machine into the installation

location, it must be leveled for proper operation. Follow

these steps to level the ice machine:

1. Use a level to check the levelness of the ice

machine from front to back and from side to side.

2. If the ice machine is not level, adjust the leveling

glides or legs on each corner of the base of the ice

machine as necessary.

3. Check the levelness of the ice machine after each

adjustment.

4. Repeat steps 2 and 3 until the ice machine is level

from front to back and from side to side.

Levelers

Legs

16

WATER SERVICE/DRAINS

WATER SUPPLY

Local water conditions may require treatment of the

water to inhibit scale formation, filter sediment, and

remove chlorine odor and taste.

IMPORTANT

If you are installing a Manitowoc water filter

system, refer to the Installation Instructions

supplied with the filter system for ice making water

inlet connections.

WATER INLET LINES

Follow these guidelines to install water inlet lines:

• Do not connect the ice machine to a hot water

supply. Be sure all hot water restrictors installed

for other equipment are working. (Check valves on

sink faucets, dishwashers, etc.)

• If water pressure exceeds the maximum

recommended pressure, 80 psig (5.5 bar) obtain a

water pressure regulator from your Manitowoc

distributor.

• Install a water shut-off valve for ice making potable

water.

• Insulate water inlet lines to prevent condensation.

• Local, state or city codes may require an air gap.

Contact a local plumber for code requirements.

DRAIN CONNECTIONS

Follow these guidelines when installing drain lines to

prevent drain water from flowing back into the ice

machine and storage bin:

• 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.

17

WATER SUPPLY AND DRAIN LINE

SIZING/CONNECTIONS

Tubing Size Up to

Ice Machine

Fitting

1/4" (.64 cm)

min. inside

diameter

3/4" (1.9 cm)

minimum inside

diameter

3/8" (.96 cm) ID

minimum

Ice Machine

Fitting

1/4" (.64 cm)

ID Copper

Tubing

3/4" (1.9 cm)

Hose Barb

3/8" (.96 cm)

Hose

Water

Pressure

20 psi (1.38 bar) Min

80 psi (5.5 bar) Max

-----

Water

Temperature

35°F (1.7°C) Min.

90°F (32.°C) Max.

-----.

-----

Ice Making

Water Inlet

Bin Drain

Drain Pump

Note: If air temperature is less than 60 F (15.5 C) water temperature must be equal or greater

than 50°F (10°C).

18

ELECTRICAL REQUIREMENTS

VOLTAGE

The maximum allowable voltage variation is ±10% of

the rated voltage on the ice machine model/serial

number plate at start-up (when the electrical load is

highest).

• A qualified electrician must determine proper

wire size dependent upon location, materials

used and length of run (minimum circuit

ampacity can be used to help select the wire

size).

• The maximum allowable voltage variation is

±10% of the rated voltage at ice machine

start-up (when the electrical load is highest).

• Check all green ground screws in the control

box and verify they are tight before starting

the ice machine.

MINIMUM CIRCUIT AMPACITY

The minimum circuit ampacity is used to help select

the wire size of the electrical supply. (Minimum circuit

ampacity is not the ice machine’s running amp load.)

ELECTRICAL SPECIFICATIONS

WARNING

The ice machine must be grounded in accordance

with national and local electrical code.

Ice

Machine

Voltage

Phase

Cycle

Max. Fuse/

Circuit

Breaker

Minimum

Circuit

Amps

CM50 115/1/60 15 amp 4.1

GFCI REQUIREMENTS

If GFCI (ground fault circuit interrupter) is required by

local electrical code, it must be a breaker type.

19

Bin L ight

Water

Sh utters

Water

Trou gh

Bin

Therm ostat

Adjust ment

Grill

Cont rol P anel

Evaporator

Compartment

Electrical

Drain

Pu mp

(O ptio nal)

Wate r

Pu mp

Drain

Water Inlet Refrigeration

Compression

COMPONENT IDENTIFICATION

20

Wat er

Shutter

Assembly

Evaporato

r

Wate r

Pump

Water Supply

Line

Spray Bar

Spray

Nozzles

Water

S hutt ers

Control

Board

Evaporator

Bucket

Not e: Evap orat or

removed for

clarit y

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