Scotsman CMS1402 Installation Manual
CMS1402
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
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
For the Installer
Location & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Freeze Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Harvest Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Parts Lists and Wiring Diagrams are located in the
center of this manual, printed on yellow paper.
September 1993
Page 1
Air Cooled
CMS1402
FOR THE INSTALLER
The CMS1402B will fit the following Scotsman ice
storage bin (48" wide): BH900, and with adaptors,
onto the following Scotsman ice storage bins:
••BH1000 (with KBT21) or BH1360;
and it will stack (with kits) onto the following ice
machines:
••CMS1202, or CMS1402 (use KSCMS48).
The stacking kit includes gaskets and trim strip.
The normal finish for the machine is enamel
sandalwood. 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.
Note: "B" model’s have two front panels,
production began early 1992.
Water Cooled
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.S.A.
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.
Model Number Dimensions (w/o bin)
W" x D" x H"
CMS1402AE-3B
CMS1402WE-3B
CMS1402AE-32B
CMS1402WE-32B
48 x 24
48 x 24
48 x 24
48 x 24
3
⁄8 x 271⁄
3
⁄8 x 271⁄2
3
⁄8 x 271⁄2
3
⁄8 x 271⁄2
Basic Electrical Minimum Circuit
Ampacity*
208-230/60/3 20.2 20 60 oz. R-22 Air
2
208-230/60/3 19.5 20 64 oz. R-22 Water
208-230/60/1 31 30 60 oz. R-22 Air
208-230/60/1 30.3 30 64 oz. R-22 Water
Maximum
Fuse Size
Refrigerant
Charge
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.
This ice system is designed to be installed indoors, in a controlled environment.
MINIMUM MAXIMUM
Air Temperature 50
Water Temperature 40
Water Pressure 20 psi 80 psi
0
F. 1000F.
0
F. 1000F.
September 1993
Page 2
FOR THE INSTALLER: Location & Assembly
SHIPPING
BRACKETS
Location:
After uncrating and inspection, the unit is ready for
installation. It is important that the machine be
installed 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 envrionmental limitations.
CMS1402
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:
Two ice machines on a bin require stacking kit
KSCMS48. Use heavy duty leg kt 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
postion, 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.
ICE MACHINE AND BIN ASSEMBLY
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 mechancial 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
icemaker to secure the ice machine to the bin.
September 1993
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.
Page 3
CMS1402
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 the lower icemaker 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 icemakers, bolt
the upper icemaker cabinet to the
lower icemaker 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
September 1993
Page 4
EVAPORATOR COVER
FOR THE ELECTRICIAN
ELECTRICAL CONNECTIONS, AIR COOLED
DETAIL OF
JUNCTION BOX
CMS1402
SEE 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
icemaker.
Electrical connections are made at the rear of
the icemaker, inside the junction box.
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.
GROUND SCREW
HAND
DISCONNECT
SWITCH
JUNCTION
BOX
ELECTRICAL CONNECTIONS, WATER COOLED
September 1993
Page 5
VENT
OPTIONAL
FILTER
CONDENSER
INLET
CMS1402
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 thewater supply and the
cuber. ln 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 inot 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 5/8 inch O.D.
copper tubing and should be vented and run
separately. Insulation for high humidity areas is
recommended.
Water Cooled models require another inlet
connection to the condenser, 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 is 3/4" FPT. There
must be a vent at this connection for proper sump
drainage.
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
September 1993
Page 6
FINAL CHECK LIST
CMS1402
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 icemaker?
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
September 1993
Page 7
ON/OFF/WASH SWITCH
CMS1402
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 Timer”.
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 220 P.S.I.G. Check
the discharge pressure and adjust the water
regulating valve to obtain 220 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 12 and 15 minutes. Longer time for
temperatures above 70
required when temperatures are below 70
o
F. and shorter time
o
Average complete cycle time is about 16 minutes.
F.
September 1993
Page 8
CONTROL BOX
CUBE SIZE
CONTROL
TIMER
ICE LEVEL CONTROL
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