Scotsman CME1356R, CME1656R User Manual

Introduction

CME1356R and CME1656R

This product manual contains the information needed for the setup, installation, initial start up, sanitation and maintenance of this ice machine. Keep it for future reference.

There are 2 models covered in this manual:

• CME1356R, (5 evaporators)

• CME1656R, (6 evaporators)

TABLE OF CONTENTS

Specifications .................PAGE2

Condenser and Ice Machine Layouts .....PAGE3

Pre-Installation .................PAGE4

Location & Assembly .............PAGE5

Bin Control: Installation ............PAGE6

Bin Control ...................PAGE7

Be certain that the information applies to the model in question. If no model is listed, the information applies to all models.

This manual is organized in the same way as the expected use of the machine, it begins with specifications, goes thru unpacking and setup, shows where everything is; continues with initial start up, then describes how it works. After that is the sanitation section, followed by service diagnosis and repair.

Sanitation and Cleaning ........... PAGE 26

Additional Maintenance ........... PAGE 27

Additional Maintenance: Water Distributors . PAGE 28

Additional Maintenance: Inlet Water Valve

Screen .................... PAGE 29

Additional Maintenance: Ice Sensors,

Condenser .................. PAGE 30

Stacking ....................PAGE8

For The Installer: Remote Condenser .....PAGE10

Remote Condenser Location .........PAGE11

Coupling Instructions .............PAGE12

Head Pressure Control Add-On Kit ......PAGE13

Electrical ....................PAGE14

Plumbing ....................PAGE15

After Utility Connections ............PAGE16

Component Location and Function ......PAGE17

AutoIQ Controller ...............PAGE18

Initial Start Up .................PAGE19

Adjustments ..................PAGE20

How To Operate The AutoIQ Controller ....PAGE21

How The Electronic Cuber Works .......PAGE22

Technicians Only: Freeze Cycle Sequence . . PAGE 24

Technicians Only: Harvest Cycle Sequence & Other

Notes .....................PAGE25

Parts Lists and Wiring Diagrams are in the section at the center of this manual.

May 2000

Page 1

Service Diagnosis: Diagnostic Light Analysis PAGE 31

Service Diagnosis .............. PAGE 32

Service Diagnosis: Components ....... PAGE 33

Service Diagnosis .............. PAGE 34

PTCR ..................... PAGE 35

Operational Characteristics: CME1356R . . . PAGE 36

Operational Characteristics: CME1656R . . . PAGE 37

Removal and Replacement ......... PAGE 38

Removal and Replacement ......... PAGE 39

Removal and Replacement: AutoIQ Controller

........................ PAGE 40

Removal and Replacement: Water Level Sensor

........................ PAGE 41

Removal and Replacement ......... PAGE 42

Refrigerant .................. PAGE 43

Before Calling for Service .......... PAGE 45

CME1356R and CME1656R

Specifications

Both of these ice machines are designed to be installed indoors, in a controlled environment. They can operate satisfactorily under a wide variety of conditions. However, Do NOT operate the machine in temperatures it has not been designed for. Do NOT operate the machine above or below the voltage limits for the particular model. Do NOT operate the machine with too little or too much water pressure.

Operational Limits

Minimum Maximum

Air Temperature 50

Water Temperature 40oF. 100oF.

Water Pressure 20 psi 80 psi

Voltage (60 Hz) 197 253

Voltage (50 Hz) 207 253

Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice.

F. 100oF.

Voltage note: The control system transformer in the control box of this ice machine has two primary taps, one for 208 volt power and one for 240 volt power. The machine ships with the power supply connected to the 208 volt tap. Change to the 240 volt tap when the voltage supplied to the unit is greater than 229 volts.

Bins:

All models will fit a standard, 48" wide or wider open top Scotsman Ice Storage Bin. Examples include BH900, BH1100, BH1300, BH1600

In addition, there may be other bins that can be used, check Scotsman’s sales literature for application information.

Note: Slope-front bins must have an internal baffle. Scotsman’s BH900 has the required baffle. Baffle must be approximately in the position shown in the diagram below.

Baffle

Scotsman assumes no liability or responsibility of

12.0"

any kind for products manufactured by Scotsman that have been altered in any way, including the

4.0"

use of any parts and/or other components not specifically approved by Scotsman.

BASIC INFORMATION

Dimensions

Model Number

CME1356RS-32F 48 ½ “ x 24" x 28 208-230/60/1 ECR411-32A 288 oz 24.9 30

CME1356RS-3F same 208-230/60/3 ECR411-32A 288 oz 15.9 20

CME1356RS-6F same 230/50/1 ERC411-32A 288 oz 24.9 30

CME1656RS-32F same 208-230/60/1 ECR411-32A 288 oz 24.9 30

CME1656RS-3F same 208-230/60/3 ECR411-32A 288 oz 15.9 20

CME1656RS-6F same 230/50/1 ECR411-32A 288 oz 24.9 30

W x D x H (w/o bin)

Basic Electrical (volts/Hz/phase)

Use Condenser

Side View

Refrigerant Charge R-404A

Minimum Circuit Ampacity

* The remote condenser is designed to work in temperatures from -20oF. to 120oF.

Maximum Fuse Size

Use precharged tubing kits, RTE25 (25’) or RTE40 (40’) or RTE75 (75’). Select the length closest to the needs of the particular installation.

The stacking kit required to place two like model cubers together is: KSCME6-LG-B. The kit required to connect this ice machine to a central condenser is: RCKCME6-GX

November 2004

Page 2

Condenser and Ice Machine Layouts

.88 DIA. ELECTRICAL INLET

DISCHARGE LINE 1/2" MALE CPLG.

CME1356R and CME1656R

29.50 in

74.9 cm

ERC411

.562 DIA. MOUNTING HOLES (4)

6.00 in

15.2 cm

CONDENSER FINS

23.54 in

59.7 cm

29.15 in

74.0 cm

MINIMUM FOR

UTILITY CONNECTIONS

2.75

38.47 in

97.7 cm

32.32 in

35.72 in

90.7 cm

15-0782-01CANCAUSEINJURYOR DEATH:DISCONNECT ALL REMOTE ELECTRICPOWERSUPPLIESBEFORESERVICING.RISKOFELECTRICSHOCK^MWARNING

2.84 in

7.2 cm

82.1 cm

28.07 in

71.2 cm

7.60 in

19.3 cm

6.10in

66.3 cm

MINIMUM BIN TOP OPENING

24.71 in

62.7 cm

11.50 in

29.2 cm

14.56 in

36.9 cm

27.56 in

70.0 cm

29.19 in

74.1 cm

.65 in

1.7 cm

LIQUID LINE 3/8" MALE CPLG.

AIR FLOW

PLAN VIEW

18.75 in

47.6 cm

ICE

OPENING

6.00 in

15.2 cm

MINIMUM FOR

AIR VENTILATION

REMOTE CONDENSER LIQUID LINE 3/8" MALE CPLG.

23.30 in

59.2 cm

22.65 in

57.5 cm

BACK VIEW

DUMP VALVE DRAIN 3/4" F.P.T.

REMOTE CONDENSER DISCHARGE LINE 1/2" MALE CPLG.

WATER INLET 3/8" FLARE

May 2001

4.20 in

10.7 cm

ICE

OPENING

18.67 in

47.4 cm

Page 3

.88 DIA. KNOCKOUT ELECTRICAL INLET

15.77 in

40.1 cm

21.77 in

55.3 cm

10.15 in

25.8 cm

2.50 in

6.4 cm

5.87 in

14.9 cm

17.87 in

45.4 cm

2.46 in

6.2 cm

3.81 in

9.7 cm

.88 DIA. KNOCKOUT REMOTE CONDENSER FAN

23.87 in

60.6 cm

CME1356R and CME1656R

Pre-Installation

Other Applications:

Check sales literature for additional information.

Electrical:

Check the nameplate for electrical requirements. The nameplate is located on the back of the ice machine. If the information on the nameplate is different from other published information, go by the nameplate data.

While the model and serial number are on the nameplate, a serial number plate is located at the front of the machine, behind the left front panel and to the right of the purge valve.

Nameplate

Serial Number Plate

Water:

There is no such thing as pure water. All water contains some impurities. There are two ways water carries the impurities: suspended and dissolved. Suspended solids can be filtered out. Dissolved solids must be diluted or treated. Water filters are recommended to remove suspended solids. Some filters have treatment in them for suspended solids. Check with a water treatment service for a recommendation.

Cube Ice machines use more water than what ends up in the bin as ice. While most water is used during ice making, a portion is designed to “rinse" out the water system to keep hard water scale from clogging up the machine. That water rinse, combined with water filters, prolongs the times between needed water system cleaning.

Service Technicians: All models covered here come set from the factory with at a “Standard” water rinse. Standard water rinse is designed to be compatible with typical water conditions. The machine may be adjusted to a different water rinse after start up. If the prior ice machine worked acceptably well with the local water conditions, leave the machine at the factory setting. If severe water conditions are present, and water filters do not solve the problem acceptably, adjust the machine to use more water. If water conditions are excellent, adjust the machine to use less water. See the Adjustments section.

Note: Water use adjustments are customer convenience adjustments; they are NOT factory defects and are NOT covered by warranty.

May 2001

Page 4

Location & Assembly

CME1356R and CME1656R

Locate the ice machine indoors. A 6 inch minimum clearance on the back and left sides is required for the proper operation and service of this machine.

Locate the remote condenser as close as possible to the ice machine. See page 11 for details.

Unpacking and Assembly:

Begin with unpacking the ice storage bin. Remove the carton, and using part of the carton as a cushion, tip the bin on its back to remove the skid and attach the legs or casters. Note: Stacked

applications may not use casters.

Return the bin to an upright position. Check the bin top gasket for gaps and tears, fill any in with food grade sealant prior to placing the ice machine on the bin.

Note: If recycling a prior bin, be sure that the bin top gasket is in good condition or seal the ice machine to the bin with food grade sealant.

Level the top edge of the bin front to back and left to right.

If the ice machine has not been unpacked, do so now. Remove the carton from the skid. Remove shipping straps.

Remove the front panels and all packaging materials.

After all packing materials have been removed from the ice machine, lift or hoist the machine onto the bin. Align the sides and back of the machine with the sides and back of the bin.

Secure the ice machine to the bin with the two metal straps and 4 bolts provided.

Cabinet Panel Removal:

1. Remove the front panel by removing the two screws connecting the front panel to the machine.

2. Lift up at the front edge and push the top panel back until it releases from the tabs connecting it to the back panel.

3. Remove two screws at the front of each side panel, and pull them forward until they release from the tabs connecting them to the back panel.

Evaporator Cover:

To Remove

Evaporator Cover:

Push Up and Tilt Out

May 2001

Page 5

CME1356R and CME1656R

Bin Control: Installation

The bin control is a thermostat. It must be field installed after the ice machine has been placed on the bin.

Before starting, remove the left front panel and any baffle in the bin.

1. Locate bin thermostat bulb.

2. Route bulb thru routing tube (located between the compressor and the reservoir).

3. Locate bin thermostat bracket.

4. Carefully position the thermostat bulb on the bracket (see the diagram on the next page).

5. Fasten the bracket to the bottom of the ice machine with the two 3-pronged knobs supplied with the unit.

6. Pull back into the ice machine any excess capillary tubing.

7. Return the baffle to the bin and continue with the installation.

Note: If the machine is located at an altitude higher than 2,000 ft., adjust the thermostat by removing the plastic cover and rotating the adjustment screw per the table.

Thermostat Bulb Routing Tube

Bin Thermostat Altitude Correction Table

CW Turns of Range Screw (under plastic cover)

Feet Turns Feet Turns 2000 55 4000 160 6000 250

8000 340 9000 385 10000 405

Use This Table to Adjust Thermostat

Bin

Thermostat

Body

Thermostat Bulb

Routing Tube

Bin Thermostat Bulb

Route Bin Thermostat Bulb Into Bin

May 2001

Page 6

Bin Control

Bin Thermostat

Bracket

Mount Bulb

Tip Here

CME1356R and CME1656R

Bin Thermostat

Capillary Tube

Mount Thermostat

Capillary Tube Here

Attach Thermostat Bulb to Bracket

Minimize Excess

Tube in Bin

Three-Pronged Knob

Thermostat and

Bracket

Attach Bracket to Bottom of Ice Machine

May 2001

Page 7

CME1356R and CME1656R

Stacking - Kit KSCME6-LG-B

Only like models may be stacked. Begin after the bottom unit has been placed on the ice storage bin and secured. Stacking requires heavy duty leg kits. Casters are NOT recommended.

Note: Instructions are for either model.

Bottom Machine:

1. Remove front panel, left side panel, and top panel.

2. Remove & discard top cover from over the freezing compartment.

3. Install gasket materials to freezing compartment:

Cut about 22" of gasket material from the roll in the kit. Apply it to the back side top edge of the freezing compartment.

Cut two lengths of gasket material to fit the right side top edge of the freezing compartment and apply them.

4. Place a bead of food grade sealant to the top of the back wall’s gasket.

5. Place the shield bracket (has a large hole in the center) from the kit over the center of the freezing compartment.

Insert the tabs of the bracket into slots on the back of the unit.

6. Secure bracket at the front with screws from the kit.

7. Hang the plastic shields from the bracket installed in the prior step. Use the slots in the shields to hang them from the stainless steel hooks.

Note: The notch in the bottom of the shield goes to the front.

Note: The tabs on the shields must fit inside the ice outlet port.

8. Check the position of the shields. They must move freely and be vertical.

Note: The suction line may need to be moved slightly so the tubing clears the bracket & shields.

9. Place a bead of food grade sealant onto the top left edge of the freezing compartment.

10. Install the front-to-back support bracket over the left edge of the freezing compartment.

11. Remove two existing screws and secure the bracket to the: freezing compartment, back panel and front channel with the 2 existing screws and 1 large and 4 small screws from the kit.

Both Machines:

12. Place the top ice machine onto the bottom one. Secure together with hardware from the top machine. Remove left front and left side panels.

13. At the back of the ice machines, on the compressor end, remove the upper knock-out from the bottom machine and the lower knock out from the upper machine.

14. Place a strain relief (from the kit) into each hole.

15. Insert wire harness from kit thru strain-relief and hole in upper corner of the lower ice machine’s back panel.

NOTE: Harness is marked which end goes to which machine.

Bottom Machine:

16. Remove harness from controller terminal 7 and bin thermostat.

17. Route wire harness in lower ice machine to the controller. Connect to terminal #7. Plug the two free wires onto the thermostat terminals #1 and #2.

18. Return left side panel to its original position on the lower ice machine.

Top Machine:

19. Remove harness from controller terminal 7.

20. Route wire harness thru upper unit’s lower knock-out hole and strain relief and continue internally to the controller. Plug wire onto terminal 7 of the controller.

21. Return all panels and covers to their normal positions.

22. Complete the balance of the installation.

Service Notes:

A. The shields must be positioned so they hang vertically and move freely left to right. Their purpose is to guide the ice past the bottom machine’s evaporators and into its cube port.

B. The drain lines from each ice machine must be kept separate.

May 2001

Page 8

Stacking

CME1356R and CME1656R

Gasket on

Plastic Walls of

Lower Unit

Gasket for Metal

Edges of Bottom

Unit

Front-to-Back

Support Bracket

Mounting Straps

and Hardware

Shield Hanger

Bracket

Shield

May 2001

Page 9

CME1356R and CME1656R

For The Installer: Remote Condenser

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

Note: The location of the condenser relative to the ice machine is LIMITED by the specification on the following page.

Select the best available location, one that protects the condenser from extremes of dust, grease and sun.

Meet all applicable building codes.

Roof Attachment

Install and attach the remote condenser 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.

Note: If using any other condenser besides the ERC411, its use must be approved by Scotsman, and a head pressure control valve must be connected to the condenser coil. The head pressure valve kit number is: RCKCME6

Precharged Line Routing

Do not connect the precharged tubing until all routing and forming of the tubing is complete. See the Coupling Instructions for final connections.

1. Each set of pre-charged tubing lines contains a

“ diameter liquid line, and a

” diameter

discharge line. Both ends of each line have quick connect couplings, the end without access valves goes to the ice 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 the refrigerant lines of 2“. Check local codes, a separate hole may be required for the electrical power supply to the condenser.

Caution: Do NOT kink the refrigerant tubing while routing it.

3. Route the refrigerant tubes thru the roof opening. Follow straight line routing whenever possible.

Note: Excess tubing may EITHER be coiled up INSIDE the building OR cut out prior to connection to the ice maker and condenser.

If the excess tubing is cut out, after re-brazing the tubing must be evacuated prior to connection to the ice maker or condenser.

If the excess tubing is to be coiled, spiral it horizontally to avoid excess trapping in the lines.

Note: A 36" service loop may be placed behind the ice machine.

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

ERC411 Remote

Condenser

Electrical

Power Supply

Coil Excess

Tubing

Horizontally

Within the

Building

Typical Installation

May 2001

Page 10

Remote Condenser Location

CME1356R and CME1656R

Use the following for planning the placement of the condenser relative to the ice machine

Location Limits - condenser location must not exceed ANY of the following limits:

Maximum rise from the ice machine to the

condenser is 35 physical feet

Maximum drop from the ice machine to the

condenser is 15 physical feet

Physical line set maximum length is 100 feet.

Calculated line set length maximum is 150.

Calculation Formula:

Drop = dd x 6.6 (dd = distance in feet)

Rise = rd x 1.7 (rd = distance in feet)

Horizontal Run = hd x 1 (hd = distance in feet)

Calculation: Drop(s) + Rise(s) + Horizontal Run

= dd+rd+hd = Calculated Line Length

Configurations that do NOT meet these requirements must receive prior written authorization from Scotsman.

Do NOT:

Route a line set that rises, then falls, then rises.

Route a line set that falls, then rises, then falls.

Calculation Example 1:

The condenser is to be located 5 feet below the ice machine and then 20 feet away horizontally.

5 feet x 6.6 = 33. 33 + 20 = 53. This location would

be acceptable

Calculation Example 2:

The condenser is to be located 35 feet above and then 100 feet away horizontally.

35 x 1.7 = 59.5. 59.5 +100 = 159.5. 159.5 is

greater than the 150 maximum and is NOT acceptable.

Operating a machine with an unacceptable configuration will void the refrigeration system warranty.

22.87"

17.15"

Max 35’

Max 15’

Remote

Condenser

Located ABOVE

Ice Machine

Remote Condenser

Located BELOW Ice

Machine

40.35"

Condenser Distance &

Location

Schematic

May 2001

Page 11

CME1356R and CME1656R

Coupling Instructions

The couplings on the ends of the pre-charged line sets are self-sealing when installed properly. Follow these instructions carefully.

These steps must be performed by an EPA Certified Type II or higher technician.

Initial Connections

1. Remove the protector caps and plugs. Wipe the seats and threaded surfaces with a clean cloth to remove any possible foreign matter.

2. Thoroughly lubricate the threads, o-rings, diaphragms and all internal coupling surfaces with polyolester refrigerant oil.

Clean and Lubricate Couplings

3. Position the fittings on the correct connections on the condenser and ice machine.

The

“ discharge line (schrader valve end)

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

The

“ liquid line (schrader valve end) goes to

the remote condenser fitting marked “liquid line”.

The “ discharge line goes to the ice maker fitting marked “discharge line”.

The “ liquid line goes to the ice maker fitting marked “liquid line”.

Final Connections:

4a. Begin to tighten the couplings together by hand. Continue to turn the swivel nuts by hand until it is certain that the threads are properly engaged.

4b. Using two wrenches, one to rotate the swivel nut and one to hold the tubing in place, tighten each coupling.

Tighten Swivel Nut

It is CRITICAL that ONLY the NUT on the pre-charged tube be turned, or the diaphragms will be torn by the piercing knives and become loose in the refrigeration system causing severe operational problems.

Note: As the coupling is tightened, the diaphragms in the quick connect couplings will begin to be pierced. As that happens, there will be increased resistance to tightening the swivel nut.

4c. Continue tightening the swivel nut until it bottoms out or a very definite increase in resistance is felt (no threads should be showing). Do NOT overtighten.

5. Use a marker or pen to mark a line on the coupling nut and unit panel. Then tighten the coupling nut an additional one-quarter turn. The line will show the amount that the nut turns.

Note: The system charge is contained in the receiver tank of the ice machine. Only “holding" charges are present in the “pre-charged" tubing or the condenser.

Rotate Swivel Nut ¼ Turn More

6. After all connections have been made, and after the liquid line valve has been opened (do not open yet), check the couplings for leaks.

May 2001

Page 12

Head Pressure Control Add-On Kit

CME1356R and CME1656R

Kit: RCKCME6GX

Required when a CME1656R or CME1356R is to be connected to a Remote Condenser that is not equipped with a Head Pressure Control Valve

Required Tools: Screwdriver; Drill; 5/32" drill bit; Two Adjustable Wrenches; POE Oil

1. Remove cover from metal box.

2. Locate correct position on condenser: The RCKCME6GX can fit either a Mac G series or a Mac X series condenser.

3. Use metal box as a template, mark the positions of 4 holes to be drilled to mount the box to the condenser.

4. Drill four .157" (#22 or 5/32" bit) dia. holes.

5. Remove plastic covers from the condenser’s quick connects and those to be used to connect to the condenser.

6. Thoroughly clean and lubricate the threads and diaphragms of both the condenser’s and the kit’s quick connects. Use Polyolester oil.

7. Mount the box to the condenser with the screws from the kit.

8. Start the swivel nuts by hand.

Use a back up wrench to be certain that the

tubing is NOT ROTATING. Only the SWIVEL NUTS should be rotating!

Then use an adjustable wrench to tighten them

until no threads are seen AND a very definite resistance is felt.

9. Mark the positions of the swivel nuts to the condenser panel.

10. Rotate the swivel nuts additional one-quarter turn.

11. Place cover on metal box & secure with screws.

12. Finish the balance of the installation. Ice machine’s precharged line sets will now connect to the quick connect fittings on the metal box instead of the condenser’s.

Connections to

Central Condenser

Central

RCKCME6GX

G series

Pre-Charged

Lines from

Ice Machine

X Series

May 2001

Page 13

CME1356R and CME1656R

Electrical

All models must be installed with the correct wire size and type per the National Electric Code. Locate the nameplate on the back of the cabinet and find the numbers for Voltage, Phase, Minimum Circuit Ampacity and Maximum Fuse Size. Either fuses or HACR type circuit breakers may be used.

The ice maker is designed to operate on its own electrical circuit and must be individually fused. Voltage variation must not exceed the limits listed on page 2.

The remote condenser is designed to be powered from the ice machine. A separate knockout hole has been provided in the ice maker electrical junction box.

Remote Condenser

Power Connection

Note: Central Condensers connected to more than one refrigeration system will likely have a wiring scheme to control the fan motor. Follow those directions for condenser wiring.

Electrical connections are made in the junction box in the back of the cabinet.

1. Remove the junction box cover.

2. Knock out both holes for a field supplied strain relief.

3. Install wires and strain reliefs per code. Note: Condenser fan motor wires are tagged.

4. Connect to wires and secure ground wire to ground screw inside junction box.

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

Interconnecting

Wire

Power Supply

May 2001

Page 14

+ 31 hidden pages