Scotsman CME1002R Owner’s Manual

INTRODUCTION

Note this symbol where it appears.

CME865R & CME1002R

This manual is intended as a reference for the
installation and service of a Scotsman ice maker
model CME865R or CME1002R.

This model is a remote condenser cuber, 30" wide
and should be connected to a Scotsman remote
condenser.

Table of Contents

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1

PRE-INSTALLATION INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . Page 2

ICE MACHINE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3

RCE1001 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4

FOR THE INSTALLER: Environmental Limitations . . . . . . . . . . . . . . . . . . . Page 5

FOR THE INSTALLER: Machine & Bin Assembly . . . . . . . . . . . . . . . . . . . Page 6

FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7

FOR THE INSTALLER: Remote Condenser . . . . . . . . . . . . . . . . . . . . . . Page 8

FOR THE INSTALLER: Coupling Instructions . . . . . . . . . . . . . . . . . . . . . Page 9

FOR THE ELECTRICIAN: Electrical Connections . . . . . . . . . . . . . . . . . . . Page 10

FOR THE INSTALLER: Final Check List . . . . . . . . . . . . . . . . . . . . . . . . Page 11

INITIAL START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14

COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15

SERVICE SPECIFICATIONS: CME865R . . . . . . . . . . . . . . . . . . . . . . . . Page 18

SERVICE SPECIFICATIONS: CME1002R . . . . . . . . . . . . . . . . . . . . . . . Page 19

CLEANING & SANITIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20

CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21

FREEZING CYCLE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22

HARVEST CYCLE - HOT GAS BYPASS . . . . . . . . . . . . . . . . . . . . . . . . Page 23

SERVICE DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24

SERVICE DIAGNOSIS: Ice Level Control Circuit . . . . . . . . . . . . . . . . . . . . Page 26

REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27

REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 31

LIQUID CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32

Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.

This manual was printed on recycled paper.
This manual contains information on maintenance
and service. Keep it for future reference.

It marks a potential hazard.

September, 1994

Page 1

CME865R & CME1002R

PRE-INSTA LLATI ON INFO RMA TIO N

These two models are modular ice cube mach ine s
that are designe d to be connect ed to a remote
condenser.

The remote condenser co il must be of adequate
size and must NOT have been used with a
mineral oil refrige rat ion syst em. Specific Scotsma n
remote condensers are recommended.

A sta ckin g kit (KSCMS ) is require d for stackin g
these ice machin es. It intercon nects the sonor bin
ice level contro ls. A CME 865 or CME1002 may
only be stacked onto mod els CME8 65 , CME1 002,
MCM860, MCM1062 or CMS1002.

These models will fit any 30" wide Scotsman bin,
such as the BH55 0 or HTB5 55 , with out a bin top.
Other bins require a bin top.

Note: The sonar transducer, located in the base of
the machine, must NOT be covered by inst alla tion
material (such as a non-Scotsman bin to p). The
transducer mus t ha ve cle ar acc ess to the ice to be
able to sense the ice level. See page 5 for loca tio n.

Model Number Dimensions

W" x D" x H"
CME865RE-3 2A 30 x 24 x 27 208-230/ 60 /1 16.5 20 336 oz.
CME865RE-6A 30 x 24 x 27 230/50/1 - - 336 oz.
CME1002RE -32 A 30 x 24 x 27 208-230/ 60/1 20.5 20 336 oz.
CME1002RE -3A 30 x 24 x 27 208-230/60/3 14.3 15 336 oz.
CME1002RE -6A 30 x 24 x 27 230/50/1 - - 336 oz.

* This number is for rech arg ing purp os es on ly. - Note: Beginnin g Ju ne 1996, 48 ounce s of cha rge were
added to the ERC301, before that total charge was 288 oz.

Use Scotsman Remote Condenser

Basic Electrical Min Circuit

Ampacity

Max Fuse
Size

Refrigerant Charge*
(R-404A)

•• RCE1001 (single circuit) or ERC301 (single circu it).

Use precharged tubing kit

•• RTE25 (25’)

••RTE40 (40’ )

••RTE75 (75’ )

Air Temperatu re

(cabinet )
Minimum 50
Maximum 1000 F. 1200 F. +10% 1000 F

0

F. -200 F. -5% 400 F

Remote Condenser
Air Temperatu re

Voltage Water Temperature

.

.

June 1996

Page 2

ICE MACHINE SPECIFICATIONS

Always refer to the nameplate, located on the back
of the cabinet, for the:

••model number,

••serial number,

••basic electrical requirements,

••

minimum circuit ampacity,

••maximum fuse size,

••and refrigerant charge.

A serial number plate with the model number,
serial number and refrigerant charge is located
behind the front panel, below the control box.

The unit comes from the factory with the correct
refrigerant charge contained in the receiver. The
refrigerant charge information is for recharging,
should that be necessary.

All utility connections and refrigerant line
connections are made at the back of the ice maker.

CME865R & CME1002R

Before beginning installation, be sure that all of the
components necessary for complete assembly of
the ice system are available, and are the correct
components with regard to model, voltage, and
finish.

September, 1994

Page 3

CME865R & CME1002R

ERC301 SPECIFICATIONS

23 13⁄16"

7

⁄8"

19

ERC Dimensions

ABFG

3

33

⁄8"10

3

⁄

"16

4

3

⁄

"11

4

5

⁄

"

8

December 1995

Page 4

CME865R & CME1002R

FOR THE INSTALLER: Environmental Limitations

Installation Limitations

The ice making portion of this ice system is
designed to be installed indoors, in a controlled
environment.

Minimum Maximum

0

Air Temp 50
Water Temp 40
Water Pressure 20 PSI 80 PSI
Voltage 197 253
Operating the ice machine outside of the above

limitations, or outdoors, is potentially damaging to
the machine; also it is misuse of the machine,
which may void the warranty.

Scotsman Ice Systems are designed and
manufactured with the highest regard for safety
and performance. They meet or exceed the
standards of UL, NSF, and CSA.

Scotsman assumes no liability or responsibility of
any kind for products manufactured by Scotsman
that have been altered in any way, including the
use of any part and/or other components not
specifically approved by Scotsman.

F. 1000F.

0

F. 1000F.

Water Limitations

An ice machine is a food manufacturing plant; it
takes a raw material, water, and turns it into a food
product, ice. The purity of the water is very
important in obtaining pure ice and in maximizing
product life. These general recommendations
should help keep the ice maker clean:

1. Filter the water used to produce ice. Water filters
vary greatly in ability and function. Install one that
filters out suspended solids to a dimension of 5
microns or smaller. The finer the filter the better,
but finer filters will clog sooner than course ones. It
may be necessary to add a course filter ahead of
the fine filter to prolong filter life.

2. Check with a water treatment specialist for a
water test, and recommendations regarding filters
and treatment.

Service Limitations

Some space on the sides, the back and the top
should be allowed for service and utility
connections.

Scotsman reserves the right to make design
changes and/or improvements at any time.

Specifications and design are subject to change
without notice.

September, 1994

Page 5

CME865R & CME1002R

FOR THE INSTALLER: Machine & Bin Assembly

Overview:

This ice system consists of 4 major assemblies:

1. The ice st orage bi n.

2. The ice maker itself.

3. The interc on necting refrigerant l i n es.

4. The remote co ndenser.
Additionally, there will be interconnecting wires

between the ice mak er and the c o nd enser. The
Scots m an re mote condenser is po wered from the
ice maker. The condenser must be located above
the ice maker, usually on the roof.

On the back of the cabinet is the following notice:

REMOTE CONDENSER NO TICE

This unit has been designed for use with
Underwriter’s Laboratories Inc. listed forced air
cooled condensers, Scotsman models
RCE100 1- 32A or R CE1002- 32 A or ERC3 01. The
ice maker, cond enser and connect ing line se ts ar e
factory charged with the correct amount of
refrigerant and therefore require no charging in the
field unless the system should be opened for
service repairs.

If other forced air cooled condensers are being
considered for use with this ice maker, prior
approval fr om Sc o tsman is ne ce s sary to insur e
proper system operation.

Any alternate forced air cooled con denser being
considered must be listed with Underwriters
Laboratories, Inc. Certified with C.S.A. and have a
minimum design pressure of 500 P.S.I.G.

CAUTION
A suitable ground path must be provided between

the remote condenser cabinet and the ice maker
cabinet if the condenser fan is powered from th e
ice maker.

IMPORTANT
In order to prevent compressor damage due to

refrigerant migration, and to insure acceptable
start up , a c rankca se heater ha s been insta l l ed on
the compressor. This heater is wired to operate at
all times. Upon initial start up and any time the unit
power supply is interrupted for more than one
hour, the machine should not be star ted for at
least 4 hours after the power supply has been
reconnected to the machine.

Storag e Bin:

1. Measure the location of the ice machine floor
drain relative to the installed location of the bin.
Route all drain lines so that when the machine i s
install ed in its normal pos ition, the drain tubes
terminate just above the floor drain.

2. Using corner posts from th e bin’s carton as a
cushion, lay the bin on its back.

3. Install the legs into the leg sock ets .

4. Move bin back to an upright position.

5. Remo ve all material tha t i s pa cked i ns ide the bin .

Ice Maker :

1. Arrange for proper electric, water and drain.
See instructio ns for the plumbe r and for the

electrician.

2. Position the ice storage bin in the selected
location which should have a minimum room
temperature of 50-degrees F. and maximum room
temperature of 100 de gr ees F.

3. Inspect the bin top mounting gasket which
should be flat, with no wrinkles, to provide a good
water se al when the cuber is installed on top of the
bin.

4. Install the modular cuber on top of the bin using
care to be sure a good seal is made between the
two cabinets, use of a mechanical lift is
recomm e nded. Align the holes i n th e bo tt om back
of the cabinet to mate with the two mounting straps
on the top rear of th e bin.

5. Use bo l ts an d s t r a ps found in the hard ware
package to secure the ice machine to the ice
stor age bin.

When alignment and leveling are completed,
tighten the bolts to secure the mounting straps.

Remote Condenser:

A
capacity MUST be used. Because of the possibility
of mineral oil contamination,
that had bee n connect ed to R -12, R-502 or R - 22
units

SYSTEM

warranty.

condenser coil designed for the machine’s

new

coils and line sets

MAY NOT BE CONNECTED T O THIS

. Doing so voids the refrigeration system

January 1998

Page 6

FOR THE PLUMBER

WATER TREATMENT

DEVICE

BACK VIEW OF MACHINE ON BIN:

INLET WATER AND DRAIN

CONNECTIONS

CME865R & CME1002R

Water Supply

The recommended water supply line is a 3/8-inch
O.D. tubing with a minimum operating pressure of
20 PSIG and a maximum of 80 PSIG.

Connect to cold water supply line with standard
plumbing fittings, with shut off valve installed in an
accessible place between the water supply and
the cuber. In some cases a plumber will be
required.

Drain Connections:

All drains are gravity type and must have a
minimum of 1/4 inch per foot fall on horizontal
runs.

VENT FOR ICE

MACHINE DRAIN

3

⁄4" FPT DRAIN

FITTING

The drains to be installed must conform with the
local plumbing codes. Use only 3/4" rigid tubing.
The ice machine’s drain must be separate from the
bin’s drain. Both use 3/4" FPT fittings. Insulation of
the bin drain is recommended.

Install a vertical open vent on the drain line(s) high
point to ensure proper draining. The ideal drain
receptacle is a trapped and vented floor drain.

CONFORM TO ALL LOCAL CODES.

3

⁄8" MALE FLARE WATER INLET

3

BIN DRAIN
OUT THE BOTTOM

OF THE BIN

VENT FOR BIN

FLOOR DRAIN

⁄4" FPT

DRAIN

SHUT OFF

VALVE

September, 1994

Page 7

CME865R & CME1002R

FOR THE INSTALLER: Remote Condenser

Locate the condenser as near as possible to the
interior location of the ice maker.

Locati o n of the condens e r is l im i te d by the
specific length of pre-charged refrigerant tubing
supplied for the application. The pre-charged
tubing co nnects th e i ce m aker to the remote
condenser. The condenser must be above the ice
maker .

Select the best available location, protecting the
conde nser from extreme s of dirt, dust, and sun.

Meet all applicable building codes.
Roof Attachment

Install and attach the remote condenser unit to
the roof of the building, using the methods and
practices of construction that conform to the local
building codes, including having a roofing
contractor secure the condenser to the roof.

Pre-charged Line Routing

Do not co nn ect pre-c ha r ge d tubing un til al l
routing and forming of the tubing is complete.
See the coupling instructions for connect ing
instructions.

:

CAUTION

SCOTSMAN REMOTE

CONDENSER

PRE-CHARGED

REFRIGERANT

LINE SET

1. Each set of precharged refrigerant lines
consist s of a 3/8 inch dia m eter liquid line, and a
1/2 inc h di a m eter discharge line. Both ends of
each line have quick connect couplings, one end
has access valves: that end goes to the i ce maker.

Note: The openings in the building ceiling or wall,
listed in the next step, are the minimum sizes
recommended for passing the refrigerant lines
through.

2. Have the roofing contractor cut a minimum hole
for th e r ef rigeran t l ines of 1.75 " . Check loc al
codes, a separ ate hole may be required for the
electrical power to the condenser.

CAUTION

DO NOT KINK OR CRIMP REFRIGERANT
TUBING WHEN INST ALLING IT.

3. Route the refrigerant lines through the roof
opening.

Follow straight line routing whenever possib le .

Any excess tubing MU ST be retained within the
building.

4. Spiral any excess length of pre charged tubing
inside the building. Use a horizontal spiral ( a s
illustrated) to avo id any traps in the lines.

Note: Actual spiral need not be as ti gh t as s h o w n.

5. Have the roofing contractor seal the holes in the
roof per local codes.

Note: Only a holding charge is in the precharged
line set.

January 1998

Page 8

CME865R & CME1002R

FOR THE INSTALLER: Coupling Instructions

CAUTION

The couplings on the sets of precharged lines are
self sealing when installed properly. Carefully
follow the instructions:

1. Remove the protector caps and plugs. Wipe the
seats and threaded surfaces with a clean cloth to
be certain that no foreign matter remains on them.

2. Lubricate the inside of the couplings, especially
the O-Rings with refrigerant oil.

•• The 3/8 inch liquid line (schrader valve end)

goes to the remote condenser fitting marked
“liquid line”.

•• The other end of the liquid line goes to the ice

maker fitting marked “liquid line.”

•• The 1/2 inch discharge line (schrader valve

end) goes to the remote condenser fitting
marked “discharge line”.

•• The other end of the discharge line goes to the

ice maker fitting marked “discharge line”.

3. Begin tightening the couplings together by
hand, then using two wrenches (it is important that
ONLY the nut on the precharged lines be turned,
the other parts of the couplings must NOT be
allowed to turn or the process will tear out the
diaphragms and they will be loose in the
refrigeration system) tighten the coupling until it
bottoms out or a definite increase in resistance is
felt.

ONLY TURN NUT ON

TUBING KIT, HOLD

TUBING STATIONARY

USE TWO

WRENCHES

4. Using a marker or pen, mark a line lengthwise
from the coupling union nut to the bulkhead. Then
tighten the coupling and additional 1/4 turn. As the
nut turns, the line will show when 1/4 turn is made.

5. After all connections are made, and after the
king valve has been opened, check the couplings
for leaks.

September, 1994

Page 9

CME865R & CME1002R

FOR THE ELECTRICIAN: Electrical Connections

See the NAMEPLATE for current requirements to
determine wire size to be used for electrical
hookup. The cuber requires a solid chassis to
chassis earth ground wire. See Wiring Diagram.

Be certain the cuber is connected to its own
electrical circuit and individually fused. Voltage
variation should not exceed ten percent of the
nameplate rating, even under starting conditions.
Low voltages can cause erratic operation and may
be responsible for serious damage to the ice
maker.

Electrical connections are made at the rear of the
ice maker, inside the junction box.

CAUTION

Do

not switch the ice maker on at this time, make

certain the master and compressor switches are
OFF when power is connected to the ice maker.
Power must be connected to the ice maker long
enough in advance of start up to allow the
crankcase heater to warm the compressor,
usually about 12 hours.

Scotsman Condenser:

Separate electrical connections are made from the
ice maker to the condenser, as there is line power
interconnecting the ice maker to the condenser.

All external wiring should conform to the
national, state and local electrical code
requirements. Usually an electrical permit and
services of a licensed electrician will be
required.

REMOTE CONDENSER ELECTRICAL

CONNECTION (SCOTSMAN CONDENSER)

TERMINAL STRIPS

POWER SUPPLY TO

REMOTE SCOTSMAN

CONDENSER

POWER SUPPLY

TO ICE MAKER

September, 1994

Page 10