Scotsman IS160 User manual

INTRODUCTION
This service manual is intended as a reference for
the installer, user, and service agent of this
Scotsman Ice Station. It includes the necessary
information to install, start up, operate, clean and
maintain this unit.
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Installing Loose Shipped Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
For the Installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
How it Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
For the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Cleaning & Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Electrical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Parts lists and wiring diagrams are located in the center of this manual, printed on yellow
paper.
This manual contains important information, read it before beginning installation or operation.
Keep it for future reference.
Safety Symbol:
Important safety information on a
hazard that might cause serious
injury.
IS160 and IS220
August 1995
Page 1

SPECIFICATIONS
The term "Ice Station" means a machine that
stores manually filled ice in an insulated, sanitary
container; upon demand it dispenses that ice into
a cup or glass.
NOTE: This ice stand is designed to dispense
cubed ice only. Flaked or Nugget ice will not
work.
IS160 SHOWN, IS220 SIMILAR,
BUT 30" WIDE.
Base
Model Width Storage Capacity* Basic Electrical Amperage Power Cord
IS160-1A 22" 160 lbs 115/60/1 2 amps 4’ with plug
IS220-1A 30" 220 lbs 115/60/1 2 amps 4’ with plug
Rotor motor is 1/10 H.P. *Note: Not all ice is dispensed.
Options: Push button actuation (factory installed).
Scotsman Ice Systems are designed and manufactured with the highest regard for safety and
performance. They meet or exceed the standards of U.L., and N.S.F.
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.
IS160 and IS220
August 1995
Page 2

FOR THE INSTALLER: Installation of Loose Shipped Parts
Sink:
1. Remove splash panel from unit.
2. Slip a worm drive clamp over the drain tube as
shown.
3. Hold the drip tray up at an angle of about 30o.
Slide the drain fitting into the drain tube.
4. Tighten the worm-drive clamp.
5. Hang the drip tray onto the mounting tabs at the
base of the unit. Replace the splash panel.
Ice Lever*, Ice chute, and Fluorescent Tube
1. Slide out the ice chute mounting panel.
2. Insert the ice lever into the slot as shown.
3. Swing the lever through the slot from right to
left and let it hang freely.
4. Twist the fluorescent tube into the sockets.
5. Replace the ice chute mounting panel.
6. Insert the ice chute into the panel and twist
clockwise 1/3 turn.
7. Attach the upper front cover by pushing the
strikes on the cover into the catches on the unit.
* Optional depending upon unit configuration.
MOUNTING
TABS
DRAIN
FITTING
SINK
DRAIN
TUBE
SPLASH
PANEL
LEVER
SLOT
ICE CHUTE
MOUNTING
PANEL
ICE CHUTE
IS160 and IS220
August 1995
Page 3

FOR THE INSTALLER
1. Locate the Ice Station on the counter.
Allow vertical clearance above unit for the
removal of the cover, and for pouring ice
into the hopper.
2. Plan the unit drain. Two tubes (5⁄8" and
1 1⁄4" I.D.) are required for draining.
Routing is either thru the back or base.
Sufficient fittings are indluded with the
unit to install in most cases.
3. In order to comply with National
Sanitation Foundation (NSF)
requirements, this unit must be either
elevated above the counter top
sufficiently to provide space for cleaning
under the unit or sealed to the counter
top.
Elevating the unit may be accomplished
by using the legs. They will screw into
threaded holes in the base of the unit.
CABINET DRAIN
TUBES
IS160 and IS220
August 1995
Page 4

Installation: Sealing Unit
If the unit is to be sealed to the counter top, the
drain tubing should be available and planned such
that the connections may be finished after the unit
has been sealed to the counter.
Sealing may be accomplished by the use of room
temperature vulcanizing (RTV) rubber sealant
such as General Electric IS 808 Industrial Sealant,
Dow Corning 731 (Scotsman part number
19-0529-01) or the equivalent.
With the unit located on the counter as desired:
A. Tilt or lift the unit to expose the bottom flanges
of the base frame.
B. Apply the sealant to cover the bottom flanges of
the base frame.
C. Return the unit to the desired position on the
counter top.
D. Add sealant around the base frame and counter
top to provide a seal with a radius of 1/2". Follow
the sealant manufacturer’s instructions on the
package for working with the sealant, and cleaning
up.
E. Seal around all access holes in the
counter top with Permagum or Mortite
caulk or an equivalent material.
USE LEGS OR
SEAL TO
COUNTERTOP
IS160 and IS220
August 1995
Page 5

INITIAL START UP
1. Sanitize the ice storage system as instructed on
page 9.
2. Fill hopper with sanitary ice.
3. Plug the unit’s power cord into an electrical
outlet and the lighted sign should come on.
Dispense several containers of ice.
Ice hopper contains parts
that can move at any
time, and will cause
injury if hands are in the
way.
Do not remove cover
until the unit has been
unplugged from the
electrical power.
Note: there is a timer in the control box that will
activate the rotor in the ice bin every two hours.
The amount of time that the rotor turns is factory
set at 2 seconds, and is adjustable between one
tenth of a second and 4 seconds. Agitation of the
ice keeps it from fusing together after long periods
in the bin.
IS160 and IS220
August 1995
Page 6

FOR THE OPERATOR
This section covers operating controls, daily
pre-operation check, and unit operation.
OPERATING CONTROLS - Units have either a
lever or a push button.
Lever: Ice will continue to be dispensed for as
long as the lever is held in, or until the hopper is
empty.
Push Button: When the ice dispense button is
pushed, ice will be dispensed for as long as the
button is held in or until the hopper is empty.
Daily Check
1. Make sure drip tray and grill are clean.
2. Remove cover and pour sanitary ice into the
hopper.
Do NOT use bagged ice directly from a freezer.
The ice must be broken up in the bags first before
adding to the hopper.
Large chunks of ice can NOT be dispensed.
The dispenser must always contain ice to have ice
available for use.
Keep the cover in place, and check the ice supply
regularly during operating hours.
3. Keep sink clear of spilled ice.
4. At the end of the day:
Remove the grill from the sink, clean the sink, grill
and splash panel, make sure the sink drain is open
by pouring hot water into the sink. Return the grill
to the sink.
HOT
WATER
IS160 and IS220
August 1995
Page 7

ICE
ROTOR
DOOR
UPPER ICE
CHUTE
ICE CHUTE
CUT AWAY VIEW
Note: Ice On The Bottom of The
Hopper Will Not Be Dispensed.
HOW IT WORKS
The ice is stored in a hopper. At the front of the
hopper there is an angled rotor: when that rotor
turns, it scoops the ice, lifts it to the top of the ice
chute and drops it through that chute into the
user’s container.
IS160 and IS220
August 1995
Page 8

CLEANING AND SANITIZING
The sink, grill and splash panel area should be
cleaned daily.
The ice storage system should be sanitized
monthly.
Daily:
1. Lift up and remove grill from sink.
2. Use soap, hot water, and a clean cloth to wash
sink and splash panel; rinse with hot water,
allowing plenty of hot water to run down the drain.
3. Wash the grill, then rinse with clean water. Place
back in sink.
4. Clean all exterior surfaces of the unit with warm
water and a sponge. Rinse out the sponge with
clean water, wring excess water out of the sponge,
and wipe off external surfaces of the unit. Wipe
unit with a clean soft cloth. Do NOT use abrasive
type cleaners.
POUR HOT WATER
DOWN SINK TO CLEAN
OUT DRAIN.
IS160 and IS220
August 1995
Page 9

CLEANING AND SANITIZING
MONTHLY & INITIAL START UP:
Sanitize the Ice Storage System.
Note: this should only be done by qualified
personnel.
1. Unplug the Ice Stand’s electrical cord from the
electrical power.
2. Remove cover and discard all remaining ice.
3. Mix a solution of 1 ounce of household bleach to
2 gallons of potable water, or: mix a solution of any
approved sanitizer, following the directions for
mixing and applying that sanitizer.
4. Remove the ice chute (if used) by lifting one end
and pulling out of the slots. Unscrew the sweep
arm from the rotor shaft, and pull the rotor from
hopper.
5. Using a clean cloth or sponge, wipe all interior
surfaces of the ice storage hopper with the
sanitizing solution, allow to air dry.
6. Wipe all surfaces of the rotor (plus ice chute,
shield and bearing if used) with the sanitizing
solution, and allow to air dry.
7. Lift up & out and remove the upper front panel.
A. Twist the clear ice chute 1/3 turn, and pull down
to remove.
B. Locate the two
thumb screws holding
the upper ice chute;
remove them (1 on
top and 1 below).
Remove the upper ice
chute from the
machine.
Thoroughly wipe the
surfaces of the bin
door and both ice
chutes with the
sanitizing solution, and allow to air dry.
Place the upper ice chute back onto the dispenser,
secure with the three thumb screws.
Place the clear ice chute back onto dispenser.
Place the upper front panel back onto the machine.
8. Wipe the inside surface of the cover with the
sanitizing solution, and allow to air dry.
9. Reassemble the rotor and hopper, re-wipe the
surfaces of the rotor and allow to air dry.
10. Wipe the top edge of the ice hopper with the
sanitizing solution, allow to air dry.
11. Pour in fresh, sanitary ice and replace the
cover. Plug the unit in, and it is now ready to
dispense ice.
Ice hopper contains parts
that can move at any
time, and will cause
injury if hands are in the
way.
Do not remove cover
until the unit has been
unplugged from the
electrical power.
SWEEP
ARM ROTOR
CLEAR
CHUTE
UPPER ICE
CHUTE
LIFT UP &
OFF PANEL
IS160 and IS220
August 1995
Page 10

ELECTRICAL SEQUENCE
Refer to the wiring diagram.
Ice Vending:
Ice is dispensed as long as the ice vend lever or
push button is pushed, or until the hopper is empty
of ice.
••When the ice vend lever or push button is
pushed, the vend switch closes, and makes a
circuit to the coil of relay A.
••When relay A is energized, relay A’s contacts
6-9 and 7-4 close. Relay A’s contacts 7-1 open.
••When relay A’s contacts 6-9 close, they make a
circuit to the door solenoid, which opens the ice
door.
••When relay A’s contacts 7-4 close, they make a
circuit to the coil of relay B.
••When relay A’s contacts 7-1 open, the circuit to
the timer is opened.
••When relay B’s coil is energized, it closes a
circuit to the gearmotor, and the motor turns the
rotor.
Stand By:
••Relay A’s contacts 7-1 are closed and make a
circuit to the timer.
••The timer is energized when the unit is not
dispensing. The timer switch will close for a few
seconds every two hours.
••When the timer switch is closed, it makes a
circuit to relay B’s coil.
••When relay B is energized, it powers the
gearmotor, and the rotor is turned.
PROBLEM PROBABLE CAUSE CORRECTION
Will not dispense ice 1. No ice in hopper 1. Fill hopper with ice
2. Vend switch does not close 2. Check vend switch, replace if
open
3. Drive motor will not run 3. Check drive motor, replace if
not working
4. Door solenoid will not open
door 4. Check/replace door and solenoid
5. Rotor will not turn 5. Check hub of rotor
6. Relay for vend switch does not
close during operation. 6. Check relays, replace if necessary.
SERVICE DIAGNOSIS IS160 and IS220
August 1995
Page 11

REMOVAL & REPLACEMENT
To Replace Vend Switch:
1. Disconnect Electrical Power.
2. Pull out and remove upper front panel.
Lever Type
A. Twist ice chute 1/3 turn and pull down to
remove.
B. Remove screws holding mounting plate to
cabinet. Pull plate assembly out and away from
cabinet. Switch is mounted to valve plate.
Push Button
A. Locate vend switch behind push button.
B. Remove wires from switch.
C. Remove screw & nut retaining switch to
mounting plate, and remove switch from dispenser.
3. Reverse steps to reassemble.
To Replace Gear Motor Assembly:
1. Disconnect electrical power.
2. Remove cover from hopper.
3. Unscrew sweep arm holding rotor to gearmotor
shaft.
4. Remove rotor from gearmotor shaft.
5. Remove splash panel
6. Twist ice chute 1/3 turn and pull down to remove.
7. Remove ice chute mounting plate.
8. Remove screws holding valve mounting plate to
cabinet. Pull valve assembly out and away from
cabinet.
9. Mark location of gearmotor bracket on cabinet.
10. Disconnect gearmotor electrical leads in
control box.
11. Remove (4) screws holding gearmotor to
bracket..
12. Remove (4) screws holding bracket to cabinet.
13. Pull gearmotor bracket from cabinet.
14. Dismount gearmotor from dispenser.
15. Reverse to reassemble. Gearmotor bracket
should be installed where it was, so that the rotor
should clear bin surface by 1/8" to 1/4". If needed,
the slots on the gearmotor bracket will allow the
position of the rotor to be adjusted.
To Replace Solenoid:
1. Disconnect electrical power.
2. Pull out and remove upper front panel. Remove
fluorescent tube light if used.
3. Remove 2 thumb screws holding lower brace
and remove.
4. Remove 3 thumb screws holding upper ice
chute cover, and remove cover.
5. Disconnect electrical leads from solenoid.
6. Straighten cotter pin, and remove pin from
solenoid plunger.
7. Remove rubber mounting screws holding
solenoid to cabinet, and remove solenoid from
cabinet.
8. Reverse to reassemble.
To Replace Light: (Optional)
1. Disconnect electrical power.
2. Pull out and remove upper front panel.
3. Twist fluorescent tube out of sockets.
4. Reverse to reassemble.
Electrical Shock
Hazard.
Unplug unit before
servicing.
LIGHT TUBE
IS160 and IS220
August 1995
Page 12