Scotsman CMS1402R Installation Manual
CMS1402R
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Freeze Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Harvest Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Parts Lists and Wiring Diagrams are located in the
center of this manual, printed on yellow paper.
September 1993
Page 1
CMS1402R
FOR THE INSTALLER
The CMS1402R will fit the following Scotsman ice
storage bins:
••
BH900
••BH1000 (with bin top KBT21)
••BH1360
and it will stack (with kits)onto the following ice
machines:
••CMS1402B (with stacking kit KSCMS48)
••CMS1202B (with stacking kit KSCMS48)
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.
A remote condenser and precharged tubing kit are
required to assemble this ice system.
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.
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
(without bin)
W" x D" x H"
CMS1402RE-3B
CMS1402RE-32B
* Minimum Circuit Ampacity is used to determine wire size and type per the National Electric Code.
** The unit is shipped with the full charge in the receiver. For re-charging purposes, if the nameplate charge is
different than this number, go by the nameplate.
Use Scotsman remote condenser RC1422. Use precharged tubing kit RT2225 (25’) or RT2240 (40").
This ice system (except remote condenser) is designed to be installed indoors, in a controlled environment.
Air Temperature 500F. 1000F.
Water Temperature 40
Water Pressure 20 psi 80 psi
Voltage -5% +10%
48 x 24
48 x 24
3
⁄8 x 271⁄2
3
⁄8 x 271⁄
Basic
Electrical
208-230/60/3 R-22 20.5 30 256 oz. Remote Air
208-230/60/1 R-22 31.4 30 256 oz. Remote Air
2
MINIMUM MAXIMUM
0
F. 1000F.
Refrigerant
Type
Minimum
Circuit
Ampacity*
Maximum
Fuse
Size
Refrigerant
Charge**
R-22
Condenser
Type
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. Try to avoid
hot, dirty and crowded locations. Be sure that the
location for the machine is within the
envrionmental limitations.
Storage Bin:
Tip the storage bin on its back, using parts of the
carton to protect the exterior finish. Install the legs
packed with the BH900. If stacking use a heavy
duty leg kit (KLP6).
1. Arrange for proper electric, water and drain.
See instructions for the plumber and for the
electrician.
2. After mounting the legs position the ice storage
bin in the selected location:
CMS1402R
ICE MACHINE AND BIN ASSEMBLY
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.
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 ice
machine to secure the ice machine to the bin.
When alignment and leveling are completed,
tighten the bolts to secure the mounting straps.
Remove the front panel, and remove the
evaporator shipping brackets and hardware.
September 1993
Page 3
CMS1402R
FOR THE INSTALLER: Location & Assembly
Stacking Instructions
A stacking kit, KSCMS48, is required to
interconnect the ice level controls, seal the
freezing compartments, support the bin with heavy
duty legs, and retain the front panels.
Follow the installation instructions of the stacking
kit, but in general:
Replace the original bin legs with heavy duty legs
(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.)
Add a strip of gasket (from the stacking kit) to the
top edge of the bottom ice machines evaporator
compartment.
Install the panel retaining bracket onto the bottom
ice machine before placing the upper unit on it.
Place additional gasket onto the top edges of the
bottom ice machine.
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 kit to interconnect the two ice
machine’s bin control circuits.
STAINLESS STEEL PANEL
RETAINING BRACKET
September 1993
Page 4
EVAPORATOR COVER
FOR THE INSTALLER: Scotsman Remote Condenser
2. Have the roofing contractor cut a
minimum hole for the refrigerant lines of
1.75". Check local codes, a separate hole
may be required for the electrical power to
the condenser.
/////////////////////////////CAUTION//////////////////////////
//////
DO NOT KINK OR CRIMP REFRIGERANT
TUBING WHEN INSTALLING IT.
////////////////////////////////////////////////////////////////////////
////
3. Route the refrigerant lines through the
roof opening.
Follow straight line routing whenever
possible.
Any excess tubing MUST be retained
within the building.
4. Spiral any excess length of pre charged
tubing inside the building. Use a horizontal
spiral to avoid any traps in the lines.
5. Have the roofing contractor seal the
holes in the roof per local codes.
CMS1402R
Locate the condenser as near as possible to the
interior location of the ice maker.
Location of the condenser is limited by the specific
length of precharged refrigerant tubing supplied for
the application. The pre-charged tubing connects
the icemaker to the remote condenser. The
condenser must be above the ice maker.
Select the best available location, protecting the
condenser from extremes 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.
Precharged Line Routing
/////////////////////////////CAUTION///////////////////////////////
Do not connect precharged tubing until all routing
and forming of the tubing is complete. See the
coupling instructions for connecting instructions.
////////////////////////////////////////////////////////////////////////////
1. Each set of precharged refrigerant lines consists
of a 3/8 inch diameter liquid line, and a 1/2 inch
diameter discharge line. Both ends of each line
have quick connect couplings, the end without
access valves goes to the icemaker.
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.
LOCATE CONDENSER
NO LOWER THAN ICE
REFRIGERANT
CONNECTIONS
MACHINE
TYPICAL
INSTALLATION
September 1993
Page 5
CMS1402R
FOR THE INSTALLER: Coupling Instructions
////////////////////////////////CAUTION/////////////////////////////////
The couplings on the sets of precharged lines are
self sealing when installed properly. Carefully
follow the instructions:
////////////////////////////////////////////////////////////////////////////////
Initial Connections:
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 1/2 inch discharge line (schrader valve
end) goes to the remote condenser fitting
marked “discharge line”.
••The 3/8 inch liquid line (schrader valve end)
goes to the remote condenser fitting marked
“liquid line”.
Final Connections:
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.
TIGHTENING THE QUICK CONNECTS
SCHRADER
VALVES
••The 1/2 inch discharge line goes to the
icemaker fitting marked “discharge line”.
••
The 3/8 inch liquid line goes to the icemaker
fitting marked “liquid line.”
LIQUID LINEDISCHARGE LINE
INSULATION
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 1993
Page 6
FOR THE ELECTRICIAN
DETAIL OF JUNCTION BOX, 3 PHASE SHOWN
CMS1402R
SEE NAMEPLATE for current requirements to
determine wire size to be used for electrical
hookup. When the cuber and the remote
condenser are connected, each must be grounded
to the other using the ground screws provided in
the respective junction boxes. The cuber then
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
The Scotsman remote condenser is designed to
be powered from the ice machine. There is a
separate electrical junction box at the back of the
ice maker for the remote condenser. Wire the
remote condenser to the ice maker in accordance
with local and national electric codes. All outdoor
wiring must be in rainproof conduit.
The condenser fan motor will run whenever the
compressor is running.
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
POWER
SUPPLY
INTERCONNECTING
WIRES
REMOTE CONNECTION
September 1993
Page 7
CMS1402R
FOR THE PLUMBER
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. 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 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.
DRAIN
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.
The ice machine sump drain is 3/4" FPT. There
must be a vent at this connection for proper sump
draining.
POTABLE
WATER
SUPPLY
HAND
SHUT OFF
VALVE
AIR GAP BETWEEN
DRAIN LINES AND
BUILDING DRAIN
SUMP DRAIN MUST
BE VENTED
3/4" FPT
OPTIONAL
FILTER
3/8" MALE FLARE
VENT
BIN
DRAIN
WATER SUPPLY AND DRAIN CONNECTION
September 1993
Page 8
FINAL CHECK LIST
LEVEL
ASSEMBLY
SUMP DRAIN
OPTIONAL
FILTER
1. Is the cabinet in a room where ambient
temperatures are within the minimum and
maximum temperatures specified?
2. Is there clearance at the left and back sides of
the cabinet for service access?
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?
CMS1402R
FINAL INSTALLATION
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 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?
PRECHARGED
LINES
CONNECTED
HAND SHUT
OFF VALVE
BIN DRAIN
September 1993
Page 9
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