Scotsman CME1402, CME1202 User Manual

CME1202 & CME1402

INTRODUCTION

To the owner or user: This service manual is intended to provide you and the maintenance or service technician with the information needed to install, start up, clean, maintain and service this ice system.

Table of Contents

FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2

AIRFLOW ON AIR COOLED MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3

UTILITY CONNECTION LOCATIONS: Back Views . . . . . . . . . . . . . . . . . . . . . . . . page 4

FOR THE INSTALLER: Location & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

FOR THE ELECTRICIAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7

FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8

FINAL CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9

INITIAL START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10

FREEZING CYCLE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13

HARVEST CYCLE - HOT GAS BYPASS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14

COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 20

SYSTEM SPECIFICATIONS: CME1202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22

SYSTEM SPECIFICATIONS: CME1402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23

SERVICE DIAGNOSIS: Electrical and/or Adjustments . . . . . . . . . . . . . . . . . . . . . . page 24

SERVICE DIAGNOSIS: Refrigeration and/or Mechanical . . . . . . . . . . . . . . . . . . . . . page 25

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

REMOVAL AND REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 27

REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 29

R-404A INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 30

LIQUID CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31

Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper.

This manual was printed on recycled paper.

Keep this manual for future reference.

Note this symbol when it appears in the manual. It indicates a potential hazard.

January 1995

Page 1

CME1202 & CME1402

FOR THE INSTALLER

These machines will fit Scotsman’s ice storage bin (48" wide) BH900, and with adapters, Scotsman’s ice storage bins BH1000 (with KBT21) or BH1360.

They will stack (with k it s ) ont o th e f o llowing ice machines:

••CME1202 or CME1402 (use KSCM S48 ) .

••CMS1202 or CMS1402 (use KSCMS48).

••MCM1462 (use KSMCM48 - includes legs)

The stacking kit includes gaskets and trim strip. Heavy duty leg kits are recommended for stacking.

See sales support literature for additional kits that may be required for certain installations.

Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of U.L., N.S.F., and C.U.L.

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

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

The normal finish for the machine is enamel. An optional stainless steel panel kit (SPKCMS48) can be field installed. It contains a stainless steel top, left side panel, an overlay right side panel, and front panels.

Model Number Dimensions

(w/o bin) W" x D" x H"

CME1402AE-3A CME1402WE-3A CME1402AE-32A CME1402WE-32A CME1402AE-6A CME1402WE-6A CME1202AE-3A CME1202WE-3A CME1202AE-32A CME1202WE-32A CME1202AE-6A CME1202WE-6A

48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24 48 x 24

⁄8 x 271⁄

⁄8 x 271⁄2

⁄8 x 271⁄

⁄8 x 271⁄2

Basic Electrical

208-230/60/3 15 20 64 oz. Air

Minimum Circuit Ampacity*

Maximum Fuse Size+

Refrigerant Charge R-404A

208-230/60/3 13.5 20 62 oz. Water 208-230/60/1 22.3 30 64 oz. Air 208-230/60/1 20.9 30 62 oz. Water 230/50/1 64 oz. Air 230/50/1 62 oz. Water 208-230/60/3 13.8 20 64 oz Air

208-230/60/3 12.4 20 62 oz. Water

208-230/60/1 21.6 30 64 oz. Air

208-230/60/1 18.6 30 62 oz. Water

230/50/1 64 oz. Air 230/50/1 62 oz. Water

Condenser Type

* Minimum Circuit Ampacity is used to determine wire size and type per the National Electric Code. If the numbers listed above are not the same as the nameplate, go by the nameplate.

+ Or HACR circuit breakers.

This ice system is designed to be installed indoors, in a controlled environment.

January 1995

Page 2

AIRFLOW ON AIR COOLED MODELS

NAMEPLATE IS ON THE BACK PANEL

A Serial Number Plate

is Located Behind The

Front Panel

CME1202 & CME1402

AIR FLOWS IN THE FRONT AND OUT THE BACK

January 1995

Page 3

8.91 IN

CME1202 & CME1402

UTILITY CONNECTION LOCATIONS: Back Views

Air Cooled

Water Cooled

WATER INLET 3/8 IN MALE FLARE

CONDENSER INLET

1.0 CM 3/8 IN. FPT

January 1995

Page 4

FOR THE INSTALLER: Location & Assembly

SHIPPING

BRACKETS

CME1202 & CME1402

Location:

After uncrating and inspection, the unit is ready for installation. It is important that the machine be installed INDOORS in a location where it has enough space around it to be accessible for service. A minimum of 6" must be allowed at the back for air circulation on air cooled models. Try to avoid hot, dirty and crowded locations. Be sure that the location for the machine is within the environmental limitations.

Storage Bin:

Tip the storage bin on its back, using parts of the carton to protect the exterior finish. Install the casters, use a heavy duty leg kit if stacking two ice machines on one bin.

1. Arrange for proper electric, water and drain. See instructions for the plumber and for the

electrician.

2. Single ice machine on bin: Use legs packed with the bin. After mounting the legs position the ice storage bin in the selected location:

OPERATIONAL LIMITATIONS

MINIMUM MAXIMUM

Air Temperature 50 Water Temp erature 40 Water Pressure 20 psi 80 psi

F. 1000F.

Two ice machines on a bin require a stacking kit such as KSCMS48. Use heavy duty leg kit KLP6 when stacking onto the BH900.

Note: Allow enough space to the left and back to service the machine. Do NOT push the bin into position, instead, lift it there. Pushing a bin may damage the legs and leg mounts.

Level the bin in both the front to rear and side to side directions by adjusting the leg levelers. Stacked units use non-adjustable legs, and must be leveled with shims. Select a well ventilated location for air cooled models.

Note: Air cooled models blow air from front to back.

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

Ice Maker:

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 recommended. Align the holes in the bottom rear of the cabinet to mate with the two mounting holes on the top rear of the bin. Use bolts and straps found on the back of the ice maker to secure the ice machine to the bin.

ICE MACHINE AND BIN ASSEMBLY

When alignment and leveling are completed, tighten the bolts to secure the mounting straps. Remove the front panels, and remove the evaporator shipping brackets and hardware.

January 1995

Page 5

CME1202 & CME1402

FOR THE INSTALLER: Location & Assembly

Stacking Instructions

A stacking kit, KSCMS48, is required to interconnect the ice level controls, seal the freezing compartments, and to retain the top edges of the bottom unit’s front panels.

Follow the installation instructions of the stacking kit, but in general:

Use heavy duty legs (kit KLP6). When stacking two units, remove the top panel

and the evaporator cover from the lower icemaker.

STACKING

(The top removed from t h e l ower ice maker will no longer have any function.)

A stainless steel bracket (from the kit) must be attached to the top of the bottom machine before the units are stacked.

Place strips of gasket material (from the stacking kit) on the top edges of the bottom unit’s freezing compartment.

Carefully lift the uncrated top unit onto the bottom one and align the two cabinets. Use of a mechanical lift is recommended for this step.

At the back of the two ice makers, bolt the upper ice maker cabinet to the lower ice maker cabinet using the mounting straps and bolts from the hardware package.

Add the relay box to interconnect the two ice machine’s bin control circuits.

STAINLESS STEEL PANEL

RETAINING BRACKET

January 1995

Page 6

EVAPORATOR COVER

FOR THE ELECTRICIAN

ELECTRICAL CONNECTIONS, AIR COOLED

CME1202 & CME1402

SEE NAMEPLA TE 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.

FOLLOW ALL APPLICALBE CODES

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

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

GROUND SCREW

DETAIL OF

JUNCTION BOX

HAND

DISCONNECT

SWITCH

JUNCTION

BOX

ELECTRICAL CONNECTIONS, WATER COOLED

January 1995

Page 7

VENT

CONDENSER

INLET

OPTIONAL

FILTER

CME1202 & CME1402

FOR THE PLUMBER

FOLLOW ALL LOCAL CODES:

The recommended water supply line is a 3/8-inch O.D. copper 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.

Water Limitations:

An ice machine is a food manufacturing plant, it takes in 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. It is generally better to filter the water, although there is no one filter that will cure all water problems. A good filter combined with a polyphosphate feeder gives about the best overall performance.

Cold, potable water must be supplied to the water inlet fitting.

CONNECTIONS:

All drains are gravity type and must have a minimum of 1/4-inch fall per foot on horizontal runs. The drains to be installed to conform with the local plumbing code. Install a vertical open vent on drain line high point to insure good draining. The ideal drain receptacle is a trapped and vented floor

drain. Recommended bin drain is

⁄4" rigid tubing

and should be routed separately . Insulation for high humidity areas is recommended.

Water Cooled models require another inlet connection and another drain for the condenser. The drain must be separate from the bin drain.

Bin Drain: The bin drains from the bottom, and needs no vent unless there is a long horizontal run. Terminate drains above the drain receptacle with the proper air gap per local code.

The ice machine sump drain fitting is 3/4" FPT. There must be a vent at this connection for proper

sump drainage. Recommended drain tube is

⁄4"

rigid tubing and should be routed separately. Insulation for high humidity areas is recommended.

POTABLE

WATER

SUPPLY

AIR GAP

BETWEEN

DRAIN LINES

AND

BUILDING

DRAIN

3/8" MALE

FLARE

3/4" FPT

AIR COOLED

CONNECTIONS

SUMP DRAIN MUST

BE VENTED

HAND SHUT OFF

VALVE

AIR GAP

BETWEEN DRAIN

LINES AND

BUILDING DRAIN

WATER COOLED

CONNECTIONS

CONDENSER

DRAIN

BIN

DRAIN

WATER SUPPLY AND DRAIN CONNECTION

January 1995

Page 8

FINAL CHECK LIST

CME1202 & CME1402

1. Is the cabinet in a room where ambient temperatures are within the minimum and maximum temperatures specified?

2. Is there at least six inches clearance at the left and back sides of the cabinet for proper air circulation? (Air Cooled models)

3. Has water supply pressure been checked to insure a minimum of 20 PSIG and a maximum of 80 PSIG operating pressure?

4. Is the cabinet level?

5. Check that any shipping material has been removed from inside the cabinet.

6. Check that the reservoir is properly secured to the bottom of the evaporator plates.

7. Have all electrical, water and drain connections been made?

8. Is the water supply line shut off valve installed and electrical wiring properly connected?

9. Check all refrigerant lines and conduit lines, to guard against vibration or rubbing and possible failure.

10. Have the bin and cabinet been wiped clean?

11. Has the Manufacturers Registration form been properly filled out? Check for correct model and serial numbers from Serial nameplate, then mail the completed card to the SCOTSMAN factory.

12. Has the owner/user been given the Service Manual and instructed how to operate and maintain the ice maker?

13. Has the owner been given the name and telephone number of the authorized SCOTSMAN Service Agency serving him?

DRAIN

HAND SHUT OFF

VALVE

HAND SHUT

OFF VALVE

LEVEL ASSEMBLY

SUMP

WATER

COOLED

DRAIN

BIN

DRAIN

OPTIONAL

FILTER

FINAL INSTALLATION

January 1995

Page 9

ON/OFF/WASH SWITCH

CME1202 & CME1402

INITIAL START UP

1. Remove the front panels by removing screws at the base and pulling out.

2. Remove two screws and the control box cover .

3. Check that the two switches on the control box, the ICE-OFF-WASH rocker switch and the COMPRESSOR ON-OFF toggle switch are in the OFF position.

4. OPEN the water supply line shut off valve.

5. Switch the electrical power to the machine ON.

6. Inside the control box is the shaft of the timer and the switch assembly. Rotate the shaft of the timer until the actuator arm on the microswitch drops off outer cam into cam slot. See “Front View of Tim er” .

7. Move the ICE-OFF-WASH rocker switch to the ICE position.

8. Check the water fill cycle: For several minutes the inlet water valve will be open and water will flow into the reservoir. Near end of the fill cycle, water should be overflowing the reservoir and draining thru the reservoir drain. If at the end of the fill cycle the reservoir is not full, repeat step 6.

Check that the sump covers are snapped in place.

FRONT VIEW OF TIMER

ACTUATOR

BUTTON

CAM

FREEZE

PORTION

MICROSWITCH

HARVEST

PORTION

Check that the water distributors are properly seated at the top of the evaporators, and that water is flowing over all of the cube cells.

Note: Some water may spray from the evaporators is normal when the machine is new. The spray will stop after a few batches of ice.

9. When the sump has filled, move the compressor ON-OFF toggle switch, to the ON position.

10. On air cooled models the fan motors will begin to blow warm air out the back of the machine. Water cooled models will begin to flow warm water out of the condenser drain.

Note: To optimize the balance between ice production and water use, the freeze cycle discharge pressure must be 245 P.S.I.G. Check the discharge pressure and adjust the water regulating valve to obtain 245 P.S.I.G. discharge.

11. Check operation of the freezing cycle: Ice will begin to form from the top of the evaporators to the bottom. After the first cycle freezing time will range between 13 - 18 minutes on CME1202 and 11 - 15 minutes for the CME1402.

CONTROL BOX

CUBE SIZE

CONTROL

TIMER

ICE LEVEL CONTROL

January 1995

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