Scotsman N0622L, F0822L, N0922L, N1322L, F1522L Service Manual
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Introduction
This ice machine is the result of years of
experience with flaked and nugget ice machines.
The latest in electronics has been coupled with the
time tested Scotsman flaked ice system to provide
The features include simple conductivity water level
sensing, evaporator clearing at shut down,
photo-eye sensing bin control and the ability to add
options.
reliable ice making and the features needed by
customers.
This user and installation manual is organized in
three main sections: installation, operation, and
maintenance.
Table of Contents Man
Installation: ................................................Page 2
Location: ..................................................Page 3
Cabinet Layout ...............................................Page 4
Unpacking .................................................Page 5
Water ....................................................Page 6
Electrical ..................................................Page 7
Refrigeration ................................................Page 8
Final Check List ..............................................Page 9
Initial Start Up ...............................................Page 10
Controller ..................................................Page 11
AutoAlert and Display Code ........................................Page 12
Component Indicator Lights ........................................Page 13
Electrical Component Details .......................................Page 14
Sequence of Operation ..........................................Page 15
Electrical Sequence with Condensing Unit ................................Page 16
Water System ...............................................Page 17
Remote Refrigeration with Condensing Unit ................................Page 18
How Ice Is Made ..............................................Page 19
Scale removal ...............................................Page 20
Check Top Bearing .............................................Page 21
Bearing Service ..............................................Page 22
Options ...................................................Page 23
Options: Bin Thermostat ..........................................Page 24
Service Diagnosis .............................................Page 25
Service Diagnosis - Optional Ice Level Controls ..............................Page 26
Repair Procedures: Bearing And Breaker .................................Page 27
Repair Procedures: The Auger .......................................Page 28
Auger and Evaporator Inspection .....................................Page 29
Repair Procedures: The Water Seal: ...................................Page 30
Repair Procedures: Replace the Evaporator: ...............................Page 31
Repair Procedures: The gear reducer ...................................Page 32
Repair Procedures: Thermostatic Expansion Valve ............................Page 33
September 2009
Page 2
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Installation:
This machine is designed to be used indoors, in a
controlled environment. Operation outside the limits
listed here will void the warranty.
Air temperature limits
Minimum Maximum
o
Ice maker 50
F. 100oF.
Water temperature limits
Minimum Maximum
o
All models 40
F. 100oF.
Water pressure limits (potable)
Minimum Maximum
All models 20 psi 80 psi
Voltage limits
The quality of the water supplied to the ice machine
will have an impact on the time between cleanings
and ultimately on the life of the product. Water can
contain impurities either in suspension or in
solution. Suspended solids can be filtered out. In
solution or dissolved solids cannot be filtered, they
must be diluted or treated. Water filters are
recommended to remove suspended solids. Some
filters have treatment in them for suspended solids.
Check with a water treatment service for a
recommendation.
RO water. This machine can be supplied with
Reverse Osmosis water, but the water conductivity
must be no less than 10 microSiemens/cm.
Potential for Airborne Contamination
Installing an ice machine near a source of yeast or
similar material can result in the need for more
frequent sanitation cleanings due to the tendency
of these materials to contaminate the machine.
Minimum Maximum
115 volt 104 126
Minimum conductivity (RO water)
•
10 microSiemens / CM
Water Quality (ice making circuit)
•
Potable
Most water filters remove chlorine from the water
supply to the machine which contributes to this
situation. Testing has shown that using a filter that
does not remove chlorine, such as the Scotsman
Aqua Patrol, will greatly improve this situation.
Warranty Information
The warranty statement for this product is provided
separately from this manual. Refer to it for
applicable coverage. In general warranty covers
defects in material or workmanship. It does not
cover maintenance, corrections to installations, or
situations when the machine is operated in
circumstances that exceed the limitations printed
above.
November 2009
Page 2
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Location:
While the machine will operate satisfactorily within
the air and water temperature limits, it will operate
more efficiently when those temperatures are
nearer the lower limits. Avoid locations that are hot,
dusty, greasy or confined.
Options
The standard machine will make ice until ice fills
the bin and blocks an infrared light beam inside the
bottom of the machine. A field installed kit is
available to adjust the ice level lower. That kit
number is KVS.
The standard controller has excellent diagnostic
capabilities and communicates to the user through
the AutoAlert light panel, seen through the front
panel. There is a field installed kit that can log data
and provide additional information when the front
panel is removed. That kit number is KSBU. A
similar kit adds network connectivity, and its
number is KSBU-N
ID150 – use KBT42, KDIL-N-150 (includes
•
KVS, KNUGDIV and R629088514)
ID200 – use KBT43 and KNUGDIV and KVS
•
ID250 – use KBT43 and KNUGDIV and KVS
•
See sales literature for other brand model ice and
beverage dispenser applications.
Other Bins & Applications:
Note the drop zone and ultrasonic sensor locations
in the illustrations on the next page.
Scotsman ice systems are designed and
manufactured with the highest regard for safety
and performance.
Scotsman assumes no liability of 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.
Bin compatibility
All models are the same width: 22 inches. All
models are the same depth: 24 inches.
Bin & adapter list:
•
B222S – no adapter needed
•
B322S – no adapter needed
•
B330P – Use KBT27
•
B530P – Use KBT27
•
B530S – Use KBT27
•
B842S – Use KBT39
•
B948S - Use KBT38 for a single unit
•
B948S – Use KBT38-2X for two units side by
side
•
BH1100, BH1300 and BH1600 upright bins
include filler panels to accommodate a 22
inch wide ice machine. No adapter is
needed.
Dispenser compatibility
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and design are subject to change
without notice.
Only nugget ice models may be used with ice
dispensers. Flaked ice is not dispensable.
September 2009
Page 4
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
24.00
REF.
61
22.00 REF.
55.9
2.92
7.4
6.48
16.5
2.81
7.1
4.30
10.9
16.00
40.6
12.00
30.5
ICE DROP
OPENING
PLAN VIEW
ULTRA SONIC
BIN LEVEL
SENSOR
OPTIONAL
22.00
55.9
27.00
[68.6]
22.89
58.1
FRONT VIEW
24.00
61
LEFT SIDE VIEW
13.40
34
1.59
4
2.68
6.8
14.36
36.5
16.86
42.8
18.86
47.9
21.86
55.5
BACK VIEW
SUCTION LINE
5/8" MALE CPLG.
LIQUID LINE
3/8" MALE CPLG.
3/4" FPT D RAIN
3/8"FLARE
MACHINE
WATER INLET
120 VOLT CORD
Remote Low Side Service Manual
Cabinet Layout
Note: Bin Top Cut-outs for
drop zone should include
ultrasonic sensor location
September 2009
Page 5
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Unpacking
Remove the carton from the skid. Check for hidden
freight damage, notify the carrier immediately if any
is found. Retain the carton for the carrier’s
inspection.
The machine is not bolted to the skid. If strapped
remove the strap.
Place on Bin or Dispenser
If reusing an existing bin, be sure that the bin is in
good shape and that the gasket tape on the top is
not torn up. Water leaks, not covered by warranty,
could result from a poor sealing surface. Because
this is a remote low side, a new bin is
recommended due to the high cost to the user of
replacing an old bin when a remote system is on
top.
Install the correct adapter, following the directions
supplied with that adapter.
Hoist the machine onto the adapter.
Note: The machine is heavy! Use of a mechanical
lift is recommended.
Panel Removal
1. Locate and loosen the two screws at the front
edge of the top panel.
2. Pull the front panel out at the top until it clears
the top panel.
3. Lift the front panel up and off the machine.
4. Remove two screws at the front of the top panel.
Lift up the front of the top panel, push the top panel
back an inch, then lift to remove.
5. Locate and loosen the screw holding each side
panel to the base. Left side panel also has a screw
holding it to the control box.
6. Pull the side panel forward to release it from the
back panel.
Button Switch Bezel
To change bezels: Remove the front panel, and
refer to the instruction label on the inside of the
front panel. Push snaps of standard bezel in and
pull the bezel out of the front panel trim strip.
Position the machine on the bin or adapter. Secure
with straps from the hardware bag packed with the
machine, or those supplied with the adapter.
Remove any plastic covering the stainless steel
panels.
Note: The standard machine set up includes visible
on and off switches. Those can be covered up by
changing the bezel in the front panel’s trim strip. A
cover-up bezel is included with the hardware bag.
Remove any packaging, such as tape or foam
blocks, that may be near the gear reducer or ice
chute.
Level the bin and ice machine front to back and left
to right by using the bin leg levelers.
Locate other bezel. Push into the trim strip from the
front until it snaps into place. Return the front panel
to its original position and secure it to the cabinet
September 2009
Page 6
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Water
The water supply for ice making must be cold,
potable water. There is a single 3/8” male flare
potable water connection on the back panel.
Drain
There is one ¾” FPT condensate drain fitting at the
back of the cabinet.
Tubing
Connect the potable water supply to the potable
water fitting, 3/8” OD copper tubing or the
equivalent is recommended.
Connect the drain tube to the
condensate drain fitting.
Do not Tee ice machine drains into
the drain tube from the ice storage
bin or dispenser. Back ups could
contaminate and / or melt the ice in
the bin or dispenser.
Follow all local and national codes for
tubing, traps and air gaps.
Potable Water
Inlet
Condensate
Drain
September 2009
Page 7
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Electrical
The machine includes a power cord, connect to the
proper electrical power supply. A separate circuit is
recommended.
If a dedicated condensing unit is connected to this
machine, it will have a separate power supply.
Do not use an extension cord.
Follow all local and national codes.
Model*
N0622L-1 22 x 24 x 27 115/60/1 5.8 15
N0922L-1 same 115/60/1 5.8 15
N1322L-1 same 115/60/1 5.8 15
F0822L-1 same 115/60/1 5.8 15
F1222L-1 same 115/60/1 5.8 15
F1522L-1 same 115/60/1 5.8 15
Dimensions
w"xd"xh"
Voltage
Volts/Hz/Phase
Min Circ Ampacity Max Fuse Size
September 2009
Page 8
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Refrigeration
BTUH Capacity Requirements
Model BTUH
N0622L or F0822L 4,000
N0922L, F1222L 5,000
F1522L 7,200
Condensing Units
Model Use Condensing Unit
N0622L or F0822L NME654-RHS-A/C
N0922L or F1222L NME954-RHS-A/C
N1322L or F1522L None - rack only
Remote low side models require connection to
a dedicated condensing unit or a rack system.
Recommended Tubing from Head to Condensing
Unit
• Suction Line: 5/8" OD
•
Liquid Line: 3/8" OD
Distance limits:
•
Maximum distance between dedicated
condensing unit and head: 75 feet.
•
Condensing Unit Elevation over Ice Making
Section: 35 feet.
Roof Attachment
Install and attach the remote condensing 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.
Refrigeration Installation:
Connections
The liquid and suction fittings on the back of the
cabinet are stubs. The liquid line size is 3/8" OD.
The suction line size is 5/8" OD.
1. Recover holding charge
2. Cut the stubs off.
3. Braze line set tubing to each fitting. Sweep with
dry nitrogen while brazing.
4. Dedicated condensing unit: Evacuate complete
system to 50 microns.
5. Open the ball valves.
Rack: The skills of a refrigeration technician who is
knowledgeable about the rack are required to
connect the ice machine to the building’s
refrigeration system.
Notes:
Note: Elevations greater than 20 feet require
installation of a suction line trap at the 10 foot
mark.
Ice Making Section
•
Elevation over Condensing Unit: 15 feet.
Line Routing:
•
Allowed: One rise after a drop.
•
Allowed: One drop after a rise.
•
Not Allowed: More than one rise after a drop
•
Not Allowed: More than one drop after a rise
•
•
•
Dedicated condensing unit: Add refrigerant charge.
Recommended field charge:
•
•
•
October 2009
Page 8
R-404A models: 1.5 ounces of R-404A
refrigerant is in the system as a holding
charge.
Be sure the liquid connection is NOT in
series with another liquid line valve.
Local Codes must be observed.
N0622L or F0822L: 8 lb R-404A
N0922L or F1222L: 8 lb R-404A
N1322L or F1522L: Rack only
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Final Check List
After connections,
1. Wash out the bin. If desired, the interior of the
bin could be sanitized.
2. Locate the ice scoop (if supplied) and have it
available for use when needed.
Final Check List:
1. Is the unit located indoors in a controlled
environment?
2. Is the unit located where it can receive adequate
cooling air?
3. Has the correct electrical power been supplied to
the machine?
4. Have all the water supply connections been
made?
5. Have all the drain connections been made?
6. Has the unit been leveled?
Control Operation
Use and Operation
Once started, the ice machine will automatically
make ice until the bin or dispenser is full of ice.
When ice level drops, the ice machine will resume
making ice.
Caution: Do not place anything on top of the ice
machine, including the ice scoop. Debris and
moisture from objects on top of the machine can
work their way into the cabinet and cause serious
damage. Damage caused by foreign material is not
covered by warranty.
Power
Status
No
Water
Time to
Clean
On
Off
7. Have all unpacking materials and tape been
removed?
8. Is the correct switch bezel installed in the trim
strip?
9. Is the water pressure adequate?
10. Have the drain connections been checked for
leaks?
11. Has the bin interior been wiped clean or
sanitized?
12. Have any water filter cartridges been replaced?
13. Have all required kits and adapters been
properly installed?
14, Has the ice machine been properly connected
to the condensing unit or rack?
There are four indicator lights at the front of the
machine that provide information on the condition
of the machine.
Indicator Lights:
•
Power
•
Status
•
Water
•
De-scale & Sanitize
There is front access to two switches – On and Off.
To switch the machine OFF, push and release the
Off button. The machine will shut off at the end of
the next cycle.
To switch the machine ON, push and release the
On button. The machine will go through a start up
process and then resume ice making.
September 2009
Page 10
N0622L, F0822L, N0922L, F1222L, N1322L, F1522L
Remote Low Side Service Manual
Initial Start Up
1 Turn the water supply on.
2 Switch the electrical power on. Confirm
voltage is correct for the model.
3 Push and release the On button. The
machine will start up in about two minutes.
The liquid line valve will open and liquid
refrigerant will flow into the machine. For the
units connected to a dedicated condensing
unit, the resulting increase in suction pressure
will start the condensing unit.
4 Those units connected to a dedicated
condensing unit will begin discharging warm
air from the remote condenser. After about 5
minutes, ice will begin to drop into the bin or
dispenser.
5 Check the machine for unusual rattles.
Tighten any loose screws, be sure no wires
are rubbing moving parts. Check for tubes
that rub.
6 The EPR valve should maintain low side
pressure at a minimum of 36 PSIG + or - 2
PSIG.
All models need scale removed from the
•
water system.
All models require regular sanitization.
•
All models require sensor cleaning.
•
All models require a top bearing check.
•
Maintenance Frequency:
Scale removal
conditions it might be every 3 months. The yellow
De-Scale & Sanitize light will switch on after a set
period of time as a reminder. The default time
period is 6 months of power up time. There are 4
available time period intervals: 1 year, 0 or
disabled, 6 months or 4 months.
Sanitizing
often as needed to maintain a sanitary unit.
Sensor Cleaning
Top bearing check
time the scale is removed.
Maintenance:
. At least twice a year, in some water
: Every time the scale is removed or as
: Every time the scale is removed.
: At least twice a year or every
Remote air cooled condenser
Note: Machines will operate and make ice at the
factory EPR setting. For optimum performance,
adjust the EPR to the settings in the chart below:
Model Number
N0622L / F0822L Full open 30 PSIG
N0922L / F1222L Full open 30 PSIG
N1322L / F1522L Not specified 26 PSIG
Superheat will be 12oF, + or - a few degrees.
7 Fill out the warranty registration form and
either file it on line or mail it.
8 Notify the user of the maintenance
requirements and whom to call for service.
Maintenance
This ice machine needs five types of maintenance:
•
Remote condensing units need their
condenser coils cleaned regularly.
Scotsman
Condensing Unit
Rack
The condenser fins will occasionally need to be
cleaned of leaves, grease or other dirt. Check the
coil every time the ice machine is cleaned.
Maintenance:
The front and side panels are durable stainless
steel. Fingerprints, dust and grease will require
cleaning with a good quality stainless steel cleaner
Note: If using a sanitizer or a cleaner that contains
chlorine on the panels, after use be sure to wash
the panels with clean water to remove chlorine
residue.
Maintenance:
If the machine has been connected to water filters,
check the cartridges for the date they were
replaced or for the pressure on the gauge. Change
cartridges if they’ve been installed more than 6
months or if the pressure drops too much during
ice making.
Exterior Panels
Water filters
November 2009
Page 11
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