Scotsman FM2400R SERVICE MANUAL
INTRODUCTION
FM2400R
To the owner or user: The service manual
you are reading 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.
The FM2400R is a remote condenser modular
ice system. It features: front service for the
freezer, gearmotor, control box, water
reservoir, and bin control; an electronic circuit
for monitoring ice and water level; a
thermostatic expansion valve; and R-502 as
the refrigerant.
TABLE OF CONTENTS
For the Installer
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Remote Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance & Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Removal and Replacement
Water Reservoir & Bin Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Thrust Bearing & Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Water Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Circuit Board Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow
paper.
December, 1988
Page 1
Drain 3/4" FPT
Min.
Circuit
Ampacity
18.2
15.5
18.28"
FM2400R
FOR THE INSTALLER
The FM2400R is designed to fit
the following Scotsman storage
bins:
••B590 and extentions, with bin
top KBT18.
••
BH800 no bin top needed.
••BH1000 using bin top KBT14.
When installing a new system,
check to be sure that you have
everything you need before
beginning:
••Correct Bin
••Correct Ice Machine
••
Correct Bin Top
••All kits, legs, and information
required for the specific job.
There are two separate ice making
and refrigeration systems in this
model. The liquid and discharge
lines from each system must go to
separate circuits in one remote
condenser (RC1052).
TOP VIEW
Ice Chute
6.7" x 6.2"
BACK VIEW
Allow 6" of space behind the machine
for utility connections.
34.84"
Liquid Line
Connection
(right system)
15.53"
3.1"
21"
3.1"
13.84"
Discharge Line
Connection
(left system)
Allow 6"
above
machine for
service.
20.84"
5.25"
3"
Remote Condenser
17.8"
18.8"
21.66"
Electrical Inlet
Water Inlet 3/8" Flare
SPECIFICATIONS: ICEMAKER
Model
Number
FM2400RE-32A
FM2400RE-3A
Dimensions
(w/o bin)
H X W X D
27" x 42" x 24"
same
Basic
Electrical
208-230/60/1
208-230/60/3
Ice
Type
FLAKE
same
Cond.
Type
R/Air
R/Air
Max
Fuse
Size
25
20
* Minimum Circuit Ampacity is used to determine wire size and type per National Electric Code.
The Standard Finish is Enamel - Sandalwood. There is an optional stainless steel panel kit,
SPKFM42 available to convert the unit to Stainless Steel. It is field installed.
December, 1988
Page 2
4.5"
9.43"
Junction Box
FOR THE INSTALLER
Installation Limitations:
This ice system is designed to be installed
indoors, in a controlled environment:
Min Max
Air Temperature 50
(Not including the remote condenser)
Water Temperature 40
Water Pressure 20 PSIG 80 PSIG
Voltage -5% +10%
(Compared to the nameplate)
Operating the machine outside of the
limitations is misuse and can void the warranty.
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. This is not intended
as a complete resource for water related
questions, but it does offer these general
recommendations:
1. Check with a water treatment specialist for
a water test, and recommendations regarding
filters and treatment.
2. In most cases, the water used to make ice
should be filtered or treated, depending upon
the water.
There is no one type of water filter
that will be effective in all situations.
why a water test is important.
0
F 1000F
0
F 1000F
That is
FM2400R
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.
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and design are subject to
change without notice.
1.25"
December, 1988
Page 3
Typical Storage Bin - B590
21.12"
Drain
3/4"
FPT
19.86"
FM2400R
REMOTE CONDENSER SPECIFICATIONS
1/2" MALE QUICK CONNECT
COUPLING FOR USE WITH
RT625 OR RT640
PRECHARGED LINE SET
22"
5.75"
5.38"
32.56"
27.81"
5.0"
MODEL USE WITH MINIMUM CIRC.
RC1052 27.8" X 22 X 37.94" 1 FM2400R 2 208-230/60/1
+Included with the icemakers minimum circuit ampacity. Use this
value to determine wire size between icemaker and fan motor.
DIMENSIONS
H" X W" X D"
6.5"
3.5"
1.9"
LIQUID LINE 3/8" MALE
QUICK CONNECT
COUPLING FOR USE WITH
RT625 OR RT640
PRECHARGED LINE SET
RT-625 Precharged line set, 25’, R-502 - 2 required.
Or: RT-640. Precharged line set, 40’, R-502 - 2 required.
7.5"
AMPACITY+
BASIC
ELECTRICAL
ICEMAKER NAMEPLATE
LOCATED ON BACK PANEL
SERIAL PLATE LOCATED
BEHIND FRONT PANEL
December, 1988
Page 4
FOR THE INSTALLER
Typical Storage Bin with Extension and Bin Top
FM2400R
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, usually a minimum of 6 inches. Try to
avoid hot, dirty and crowded locations. Be
sure that the location for the machine is within
the limitations described on page 3.
Storage Bin
Tip the storage bin on its back, using parts of
the carton to protect the exterior finish. Install
the legs into the threaded holes in the bottom
of the bin. Turn the leg levelers all the way in
preparation for leveling later. Return the bin to
the upright position, remove paper covering
the bin gasket.
Install the bin top according to the directions
with the bin top.
Note: Do not push bin into position, but lift it
there. Pushing a bin, especially one with ice in
it, can cause damage to the legs and the leg
mounts.
Ice Maker
The machine is heavy, so the use of a
mechanical lift is recommended for lifting the
machine high enough to install on top of the
bin. After the unit is placed on the bin, line it
up so it is even with the back side. Secure the
machine to the bin with the hardware provided
with the machine.
Remove the front panel and remove any
shipping blocks.
Note: Be sure to allow a 6" minimum space
above the top of the machine for service.
December, 1988
Page 5
REMOTE CONDENSER
SPIRAL
EXCESS
TUBING
INSIDE
BUILDING
FM2400R
FOR THE INSTALLER: Remote Condenser
Location
Limited to a 40 foot or a 25 foot length of
precharged refrigerant tubing connecting the
icemaker to the remote condenser. The
condenser must be above or level with the
icemaker.
Select the best available location, protecting
the condenser from extremes of dirt, dust, and
sun.
Meet all applicable building codes. Usually
the services of a licensed electrician are
required.
Roof Attachment
1. 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.
2. Have an electrician connect the remote
condenser fan motor to the icemaker, using
the junction box at the back of the icemaker.
PRECHARGED LINE ROUTING
////////////////////////////CAUTION/////////////////////////////
Do not connect precharged tubing until all
routing and forming of the tubing is complete.
See the coupling instructions, page for
connecting instructions.
/////////////////////////////////////////////////////////////////////////
1. Each set of precharged refrigerant lines
(either 25 foot or 40 foot) 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, one end has a
schrader valve connection, that end goes to
the condenser.
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 1 3/4 inch.
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 the excess length of pre charged
tubing inside the building. Use a horizontal
spiral (as illustrated) to avoid any traps in the
lines.
5. Have the roofing contractor seal the holes
in the roof per local codes.
LOCATE REMOTE
CONDENSER
ABOVE ICEMAKER
December, 1988
Page 6
FOR THE INSTALLER: Precharged Lines
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.
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.
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. Connect the 3/8 inch liquid line (schrader
valve end) to the remote condenser fitting
marked "liquid line".
6. Connect the other end of the liquid line to
the icemaker fitting marked "liquid line."
7. Connect the 1/2 inch discharge line
(schrader valve end) to the remote condenser
fitting marked "discharge line".
8. Connect the other end of the liquid line to
the icemaker fitting marked "discharge line".
9. After all connections are made, and after
the king valve has been opened, check the
couplings for leaks.
FM2400R
SERVICE PORTS
REMOTE CONDENSER
3/8" LIQUID LINE
1/2" DISCHARGE
LINE
3/8" LIQUID LINE
1/2" DISCHARGE
LINE
SCHRADER
VALVE
CONDENSER
TO REMOTE
NO SCHRADER
VALVE
TO ICEMAKER
December, 1988
Page 7
ICEMAKER
FM2400R
FOR THE INSTALLER: Location
CONTACT ROOFING
CONTRACTOR
EXCESS
PRECHARGED
TUBING INSIDE
BUIDLING
REMOTE
CONDENSER
ROOF
CUTAWAY
SERVICE
ACCESS
SERVICE ACCESS
SIDE AND BACK
WALL
CUTAWAY
December, 1988
Page 8
FOR THE PLUMBER
CONFORM TO ALL APPLICABLE CODES
FM2400R
Water Inlet
CONNECT TO
COLD WATER
FIELD
SUPPLIED
WATER FILTER
HAND SHUT
OFF VALVE
WATER INLET
3/8" MALE
FLARE
VENT
ICEMAKER
DRAIN,
3/4" FPT
The recommended water supply is
cold water. Use 3/8" O.D. copper
tubing, connect to the 3/8" male
flare at the back of the cabinet.
Install a hand valve near the
machine to control the water
supply.
Drains
There is one 3/4" FPT drain at the
back of the cabinet, the drain line
is of the gravity type, and 1/4 inch
per foot fall is an acceptable pitch
for the drain tubing. There should
be a vent at the highest point of
the drain line, and the ideal drain
receptacle would be a trapped and
vented floor drain. Use only 3/4"
rigid tubing.
Storage Bin: A separate gravity
type drain needs to be run.
Insulation of this drain line is
recommended.
VENT BIN DRAIN
3/4" FPT
FLOOR DRAIN
December, 1988
Page 9
FM2400R
FOR THE ELECTRICIAN
CONFORM TO ALL APPLICABLE CODES
The electrical power to the unit is supplied
through the junction box at the rear of the
machine.
Check the nameplate (located on the back
panel) for the voltage requirements, and for
the minimum circuit ampacity. The machine
requires a solid chassis to earth ground wire.
The ice maker should be connected to its own
electrical circuit so it would be individually
fused. Voltage variation must remain within
design limitations, even under starting
conditions.
TERMINAL STRIP
FOR REMOTE
CONDESNER
ICEMAKER
JUNCTION BOX
POWER
SUPPLY
Electrically the remote condenser fan motor is
connected to the icemaker at the contactor
terminals for the compressor and the fan
motor operates whenever the compressor
operates.
Electrical connections are made at the
junction box at the back of the icemaker and
at the junction box on the remote condenser.
The remote condenser must be wired to the
icemaker in accordance with local and
national electrical codes with a minimum of 18
Awg. wire with an ground bonding wire
connected to the ground screws provided in
both the condenser and machine field wiring
boxes. All outdoor wiring must be in rainproof
conduit.
All external wiring must conform to
national, state, and local electrical codes.
The use of a licensed electrician is
required to perform the electrical
installation.
GROUND
THE
CHASSIS
RAIN PROOF
CONDUIT
December, 1988
Page 10
FOR THE INSTALLER: Completed Installation
INSULATED
PRECHARGED
REFRIGERANT
TUBING
A typical installation should generally appear
as illustrated below. The remote condenser
must be located above the icemaker and the
precharged lines installed per the instructions
on page 6.
FM2400R
December, 1988
Page 11
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