Scotsman SLE300 Operator’s Manual

Introduction

SLE300

To the owner or user: This service manual is
intended to provide you, and the maintenance or
service tec hnician, with the information ne eded to
install, start up, cle an, main ta in and rep air this
product .

The SLE300 is an ice machine that produces
cubed ice on 4 vertical cu be free zing surfaces.

When harvested, the cubes fa ll individ ua lly int o the
ice storage bin. The S LE300 automatically
maintains the level of ice by tu rnin g on when the
ice level falls, and switch es of f whe n the bin is full.

The refrigeration system uses R-404A as the
refrigerant.

Table of Contents

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2

Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3

Installation

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4

Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

SLD dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . page 6

RS or IS dispenser . . . . . . . . . . . . . . . . . . . . . . . . page 7

Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9

Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10

Component Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11

Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 12

Electrical S equence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p age 13

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14

Water/ Refrigeration Schematic . . . . . . . . . . . . . . . . . . . . . . . . . page 16

Technical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18

Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p age 19

Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . page 22

Parts lists and wiring diagrams are loca te d in the center of this manual, printed on yellow paper.
Note the warning symbo l where it appears in

this manual. It is an alert for impo rta nt safet y
informatio n on a hazard that might cause
serious injury.

Keep this manual for future reference.
This manual was printe d on recyc led paper.

January 1995

Page 1

Drain

SLE30 0

Specifications

Information regardin g Model Numb er, Serial
Number, Ampacity and Maximum Fuse Size are
located on the nameplate of the ice ma chine. The
model numbe r, serial number an d refrigerant
charge are also list ed on
the serial number plate
just behind th e fr ont
panel.

If recharging, always
use the charge listed on
the ice machine.

Nameplate

SLE300 Cabinet

Serial Number

Plate

3

⁄8"

1

Electrical

Inl et

3 3⁄4"

SLE300 Back View

(Air Cooled Model Show n)

Wate r

Inlet

1

4

20"

⁄4"

Specifi cations:
The SLE300 will stack onto a

variety of ice storage bins, see
sales literat ure for pro per ic e

22"

7

⁄8"

storage bin.

Model Number Dimensions

W" x D" x H "

Condenser

Type

Basic

Electrical

Minimum

Circuit

Ampacity*

Maximum
Fuse Size (or
HACR circuit

Refrigerant

Charge.

R-404A

breakers)

SLE300AS-1A 22 x 23 x 20 Air 115/60/1 17.3 20 15 ounces
SLE300WS-1A 22 x 23 x 20 Water 115/60/1 15.8 20 15 ounces

* Minimum Circuit Ampac ity is used to determin e
wire size and type per the Nationa l Elect ric Code.

January 1995

Page 2

For The Installer: Environmental Limitations

The ice machine must be inst alle d ind oors in a
controlled environ ment.

Minimum Maximum
Air Temp 55
Water Temp 40
Water Pressure 20 PSI 60 PSI
Voltage 103.5 126.5

Operatin g the ice machine outside of the above
limitations, or outd oors, is pote ntially damag ing to
the machine, and it is misuse of the machine. This
may void the warranty.

Scotsman Ice Systems are designed and
manufactured with the highest regard for safety
and performance . They me et or exce ed the
standards of UL, NSF, and CSA.

Scotsman assu mes no liability or res po nsib ility of
any kind for pro duct s ma nufa ct ured by Scotsman
that have be en alte red in any way, including the
use of any part and/or other components not
specifically approved by Scotsman.

0

F. 1000F.

0

F. 900F.

SLE300

Scotsman reserves the right to make design
changes and/or improvements at any time.

Specifications and design are subject to change
without notice.

Airflow on air coo led models is :

••Intake thro ug h the right side grill.

••Ex ha u st throug h the back.

Dashed Lines Sho w

Outline of Ice Drop

Area.

Bin Control Mounts to

Right of Ice Drop Area.

7"

3"

6

12"

1

⁄2"

SLE300

Top View

23"

Do not install where this air flo w is obst ruc te d.

6" Space Required for

Air Flow (Air Cooled

Only) and Util it y

Connections

January 1995

Page 3

SLE300

Installation

Water

The water supply for this ice machine has been in
contact with man y mat eria ls s ince it fell fro m the
sky as rain. All rain is slightly acidic , and tends to
dissolve the mat eria ls it come s in con tact with .
During water’s journ ey to the ice machine, it has
flowed ove r and thro ugh th e gro und, been pick ed
up by a municipal or priva te pump, fo rced thro ug h
a series of pipes of diffe ring construction and may
have been treated by the municipality providing
the wat e r.

The water supplied to this ice machin e will then
contain a variety of substances th at will likely show
up as solids during the ice making process. These
solids are similar to those found when water is
boiled out of a saucepan. Only the water boils
away, and t he minerals th at were in th e w ater
solidif y in the pan. Durin g ice making only the
water is frozen into ice, the minerals stay behind in
the reservoi r. This machine drain s ou t some of the
the water in the reservo ir eve ry cycle to minimize
the amount of minera ls in th e water syst em, but
after time the minerals will appear and have to be
dissolved by ice machine cleaner, the n flu shed
away during the clean ing proc ess .

Location

This ice machine may be installed in the open or
under a counter. Clearance may be req uire d at the
sides or top beyo nd what ’s nee ded to place the
cabinet into posit ion. Air co oled mod els take air in
the right side and exhaust out the back. Sp ace is
required for utilit y con nections at the back.

The ice machine is NOT designed for outdoor
use. It must be installed indoors, in a
controlled environment. The air and water
temperatures must not exceed rated limit s.

Pre-installation:

1. Inspect the place where the ice machine is to be
installed . Check fo r:

••space for the cabinet,

••water supply,

••drain av aila bilit y

••and electrical power su pply.

No extension co rds are allowe d. The buildin g dra in
inlet must be lower than the drain outlet of the ice
bin. The wate r sup ply mus t have a ha nd shu t of f
valve accessible when the unit is installed.

An ice machine is a food manuf act urin g pla nt ; it
takes a raw material, in this case water, and
transforms it into a food produ ct , ice. The purity of
the water is very import an t in obta inin g pure ice
and in maximizing product life .

The water to the ice machin e sh ould be filte red .
Water filters vary greatly in ability and functio n.
Install one that filte rs out suspende d solids to a
dimension of 5 microns or less . The fine r the filte r
the better , but finer filters may plug-up sooner than
course on es. It may be necessary to add a course
filter ahead of the fine filte r to prolong filter life.
Polyphosphat e feed ers are usually ef fect ive in
many water conditions.

Have the water teste d. Acid ic wate r or alka line
water will both cause corro sion . Disso lve d solid s
cannot be filtered out. Softened water is not
recommended . Neve r use de-ionized water.
Reverse-os mosis wate r must be treate d with
bufferin g agen ts befo re us e in the ice mac hin e.
Check with a water treatment specialist regarding
testing , tre atment and filters.

January 1995

Page 4

Stacking

Installation: Ic e Storage Bin

Thermostat

Capillary Tube

SLE300

Assembly:

1. Attach the legs, or optional casters, onto the ice
storage bin. Units th at are st ack ed shou ld only use
legs, not casters.

2. Be sure that the top edge of the bin has a good
gasket on it.

3. Place the ice machin e onto the stora ge bin.

4. Line up the ice machin e, check th at there is a
good seal betwee n the ice mac hin e and th e
storage bin.

5. If on a Scotsma n bin , at ta ch the ice mach ine to
the bin using the stra ps and bolt s ship pe d with the
ice machine. Drill two 1/8" holes in the back of the
bin and secure with sheet metal screws provided.
If on another brand bin, fo llow th e direct ion s
included with that bin.

Bin Thermostat Installation:

1. Remove thermo sta t bra cke t fro m pac kage.

2. Attach the bin thermostat bracket to the bottom
of the ice machine usin g the thumb sc rews
provided. The re are pre-d rilled and tapped holes
located just to the right of the cube drop area.

Stacking:

This machine will stack onto any SLE300 or
SLC400. Note : Do not us e cas ters wh en sta ckin g.

1. Remove and discard the left top panel from the
lower unit.

2. Rem ove knock ou t plug from t op right panel.

3. Place gaske t mat eria l around the top of the
bottom uni t’ s cabinet & evapora to r compartment.

4. Carefully lif t the uncrat ed top unit onto the
bottom unit. Use of a mechanical lift is
recommended for this step.

5. Align the two ice maker cabinets.

6. Secure the top unit to the bott om one with the
hardware and st rap s ship pe d with the upper
machine.

7. Locate and uncoil all of the bin thermo st at
capillary tube .

8. Route the bin thermostat capillary tube from the
upper unit, through the hole in the base, through
the lower unit and into the bin thermostat bracket.
Discard upper unit brac ket .

Bin Thermostat

Bracket

3. Locate and uncoil a portion of the
bin thermostat capillary tube. Route
the end of the capillary tube into the
plastic tube in the base of the ice
machine (next to the comp ress or) and
through the bin thermostat bracket.

Note: SLB150: Use thermostat

bracket packed with that bin.

Bin Thermostat

Installation

Routing Hole

Capillary Tube

Fasten Cabinets

Together At Back

With Straps &

Screws.

Bin Thermostat

Bracket

January 1995

Page 5

Bin Thermostat Capillary

Tube Installation

SLE30 0

Installation: SLD150 Hotel Dispenser

Assembly

The ice machine must be pla ced ont o the top of
the dispenser, an d the bin thermostat capillary
tube routed into the bracket in the dispenser.

1. Check that the dispenser has a gasket all
around the perimeter of the top, 22" wide by 23"
deep.

2. Locate the inlet hole of the thermost at bracket ,
and make sure that it is open.

3. Place a corner post from the ice mac hin e cart on
at the front of left and right sides of the hotel
dispenser top.

4. Use a mechanica l lif t and pla ce th e ice ma chin e
onto the dispenser. The cardboard corner posts
should kee p the fro nt edg e of the ice mach ine up.

5. Remove the front panel of the ice machine.

6. Locate the bin thermostat capillary tube and
unc oi l about 18" of tub ing.

7. Locate plastic tube in base of ice
machine, next to compressor and
push the end of the capillary tu be thru
the tube, watch the capilla ry as it
comes out of the base, line it up with
the inlet hole of the thermosta t
bracket an d push it into the hole.
Move the cab ine t of the ice mach ine
until the capillary tube is going
straight down into the inlet hole.

8. Carefully remove the corner posts.

9. Push the capillary tube into the
thermostat bracket tube until abou t
14" of capillary tube is in the tube.

9 Remove the hardware package
from the mach ine , remove brackets.

10. At the back of the dispenser,
fasten brack ets to the ice machin e.

1 1. Using bracke ts for te mpla tes, drill
1/8" holes into the back of the
dispenser.

Route Capillary Tube

Through Plastic

Tube In Base

Bin Thermostat

Bracket Mounted In

Dispenser

Temporarily

Support Machin e

With Corner Posts

To Observe Cap

Tube Installat ion

12. Secure bra ckets to the dispenser
with sheet metal screws from the
hardware packa ge.

13. Follow other ins tallat ion
instructio ns from the SLD150.

January 1995

Page 6

Installation: Sc ot sman IS or RS Dispens e r

RS or IS

Dispense r

SLE300

Assembly:

The assembly of the ice machin e onto the
dispenser requires two addit ion al parts: an adapte r
kit and a thermostat stand off kit.

1. Mark two spots on the inside left liner of the
dispenser: 2" down fro m the top, 4" from the back,
and 4" apart.

2. At the two marked spots , drill two 1/4 " holes thru
the plastic liner only.

3. From the stand off kit, locate the stand offs and
plastic anchors. Thread the stand offs partially into
the plastic anchors.

4. Push the anchors/stand offs into the holes.

5. Screw the stand of fs all th e way into the
anchors. Be sure th at the hole s in the stand offs
are horizontal.

6. Place a bead of silastic (from the kit) aro und the
stand off s.

7. From the adapter kit , pla ce th e st ain less stee l
adapter onto the top of the dispenser. Follow all
directions included with the kit.

8. After the ice machine has been placed on the
dispenser, remove the front panel and uncoil all of
the bin thermostat capillary tube.

9. Route the capillary t ube thru th e front hole in the
base of the ice mac hine, to the left side if the
dispenser towards the stand offs.

10. Route the end of the capillary tube thru th e
stand offs, bend the tube around the stand offs so
that it does not fall off.

1 1. Check that th e routing of the capilla ry tube is
away from the ice chute and up high near the base
of the ice machine.

Installation of Bin Thermostat

Capillary Tube

K1 Kit Adapter

Stand Offs From Kit K6

Drill 2 Holes For

Stand-Offs:

2" From Top Of

Dispenser &

4" From Back &

4" Apart

Route Capillary

Tube Through Front

Plastic Tube

Route Capillary

Tube Through

Stand Offs

January 1995

Page 7

SLE300

Installation

For The Plumber

Supply:

Screw the 3/8" male fla re (fit tin g sh ipped in
package insid e cabinet) into the 1/4" FPT fitting at
the ba c k of the cabi net (thread tape
recommend ed). Con ne ct co ld pota ble wate r to th e
water inlet. A hand shut of f va lve fo r inlet wate r
should be insta lled near t he mach ine . A wat er filt er
is recommended. Flush the water line prio r to
connect ing to the ice machine.

If water cooled , con nect a separate water inlet line
to the water cooled condenser inlet fitting. It should
also have a hand shu t off valve.

Drains:

Connect a drain tube to the reserv oir dra in fit tin g at
the back of the cabinet. The drain tube from the
fitting mus t be run separa te ly fro m any ot her drain
tube. The reservoir drain is a 3/4" F.P.T. bra ss
fitting.

Drain tube material must be rigid and meet local
code.

Traps in the bin drain line without vents ahead of
them will cause poor draining.

The bin drain mus t be vented if the re is a lon g
horizontal run (5’ or more). The reservoir drain
mus t be vented and not connected to th e bin
drain. All drains are gravity, and must have a
minimum fall of 1/4" per foot of horizon tal ru n.

Wate r Coole d: The wat er cooled condenser drain
is not vented, and is routed separately.

Maintain th e air gap req uire d by local co de
between the end of the drain tubes and the
building drain rec epta cle.

Note: Drain tu bin g sh ou ld be insulated to prevent
condensation from forming on the tubing.

CONFORM TO ALL LOCAL CODES

3/8 Male Flare

Water Inlet

Water Shut

Off Valve

Reservoir Drain

3/4" FPT, Must Be Vented.

Bin Drain. May Be Routed F rom

The Bottom On Some Model

Bins. Fittin g May Be Plastic.

DO NOT OVERHEAT.

3/8" FPT Inlet

Water Cooled

Condenser Plumbing

Connections

1/2" FPT

Outlet

Ice Storage Bin

(Typical)

Water Supply and Drain Con necti on s

January 1995

Page 8