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Scotsman SCN60 Installation And Use Manual

Scotsman ice systems ice maker user manual.
SCN60
Installation and Use
Introduction
This manual includes information for the
installation, operation and maintenance of the
SCN60 residential ice machine.
The SCN60 was developed to offer fans of
Scotsman's Nugget Ice form the ability to have that
ice in their homes. Previously Nugget Ice was only
available in commercial establishments, where it
developed a strong following because of the
chewable nature of the ice. This machine makes
authentic Nugget ice, using the same process as
the larger commercial machines.
Product Description: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Cabinet Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Location Recommendations: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Familiarization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Decorating Features: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Door Panel Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Door Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Plumbing - Pump Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Plumbing: Gravity Drain Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Electrical and Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
How to remove scale from the ice making system. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14
Outdoor Use Notice:
Keep from freezing. Severe damage will occur to the unit if left in or operated in temperatures beyond
the limits listed in this manual. That damage is NOT covered by warranty.
Keep dry. Do not locate in low lying areas where puddles will accumulate.
Provide Shade: Heat gain from the sun will reduce the unit's ability to make and store ice, and
ultraviolet radiation from the sun can potentially damage the unit's plastic components.
Water Supply: Avoid a long run of hose or tubing exposed to the sun. Plastic water supply tubing
should be rated for potable water and include UV protection. Copper tubing is recommended.
Back Flow Prevention: The unit includes back flow prevention, no additional check valve is required.
Drainage: Do Not drain into swimming pool or onto grounds.
Table of Contents
May 2011
Page 1

   Related Manuals for Scotsman SCN60

   Summary of Contents for Scotsman SCN60

  • Page 1

    This manual includes information for the installation, operation and maintenance of the SCN60 residential ice machine. The SCN60 was developed to offer fans of Scotsman’s Nugget Ice form the ability to have that ice in their homes. Previously Nugget Ice was only...

  • Page 2: Product Description

    This ice machine is designed to be used indoors, in a controlled environment or outdoors within certain limits. The SCN60 is made up of two major systems: the ice making system and the ice storage system. The ice making system is a continuous flow type ice machine, it makes ice when the ice level becomes low and stops when it is full.

  • Page 3: Cabinet Dimensions

    7 1/2" 11 5/8" Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of agencies like ETL. 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.

  • Page 4: Location Recommendations

    SCN60 Installation and Use Location Recommendations: The machine can be built into a cabinet. It is an air cooled refrigeration system and so air flows in and out of it through the grill at the bottom front. The grill must not be blocked by any covering door or other obstruction.

  • Page 5: Familiarization

    SCN60 Installation and Use Familiarization The control panel is visible when the door is opened. It has three indicator lights and two switches. The model and serial number plate is located on the bottom of the control panel box. The Bin Light and Ice Level Sensor are also visible from that angle, as is the Ice Chute.

  • Page 6: Decorating Features

    SCN60 Installation and Use Decorating Features: The machine ships unfinished, allowing the attachment of a decorator door panel or a metal panel from Scotsman. Door Panel The ice machine is supplied without a conventional door covering so it can be decorated to the user’s preference.

  • Page 7: Door Panel Attachment

    SCN60 Installation and Use Door Panel Attachment Gasket Machine Screw Hole Plug Cover Use Upper Hole at the Use Lower Hole at the Bottom May 2011 Page 7 Scotsman Door Panel...

  • Page 8: Door Swing

    SCN60 Installation and Use Door Swing The door swing is reversible. The door can be attached to open with hinges on the left or right using new hinge brackets shipped loose in the ice bin. Retain all screws for re-use.

  • Page 9: Plumbing - Pump Model

    IMPORTANT NOTE: Often an air gap is required by local codes between the ice maker drain tube and the drain receptacle. Water Supply The recommended water supply tubing is ¼ inch OD copper.

  • Page 10: Plumbing: Gravity Drain Model

    SCN60 Installation and Use Plumbing: Gravity Drain Model Caution: Restrictions in the drain system to the machine will cause water to back up into the ice storage bin and melt the ice. Gravity drain tubing must be vented, have no kinks and slope to the building drain.

  • Page 11: Electrical And Start Up

    The bin holds about 20 lb of ice when full. Ice level control The ice level control for the SCN60 is an ultrasonic sensor, located above the ice storage area. It is automatic and there is no adjustment to make.

  • Page 12

    SCN60 Installation and Use No special instructions are needed for use. Just take as much ice as you need, the machine will replace it. A scoop is provided, and it can be stored in the machine using the loop of tubing on the right side as a holder.

  • Page 13: Maintenance

    SCN60 Installation and Use Maintenance Scotsman strongly recommends regular maintenance of this ice machine. During normal operation mineral scale that is in the water supply will gradually build up on the ice making surfaces. That build up can cause excessive loading of the ice making system, which can cause premature failure.

  • Page 14: How To Remove Scale From The Ice Making System

    SCN60 Installation and Use How to remove scale from the ice making system. Cleaning this machine involves adding a solution of scale remover and water to the ice machine and continuing to add it as it makes ice. The scale remover must be diluted to the correct ratio.

  • Page 15

    SCN60 Installation and Use 6. Locate blue float valve on/off lever. Move lever up about half way to shut water off. Clean Check Time to Reset Making Water Clean 7. Locate drain plug and pull the drain plug out to drain the reservoir and evaporator.

  • Page 16

    SCN60 Installation and Use 11. Press and HOLD both the Clean-Reset and On/Off buttons for 5 seconds. The Time to Clean light will blink on and off. Press Both Check Time to Making Water Clean 12. The auger motor alone will be operating for 10...

  • Page 17

    SCN60 Gearbox Access & Removal ........

  • Page 18

    • Storage system, including ice storage bin, drain and door. The SCN60 is a continuous flow ice machine. When the control system senses that the storage bin’s ice level is low, it turns on the compressor, fan motor and auger drive motor.

  • Page 19

    SCN60 Service Evaporator and Auger Ice Outlet Auger Rotating Half of Water Seal Stationary Half of Water Seal Cut Away View May 2011 Page 3 Bearing Foam Insulation Heat Exchange Tube Coil Water Inlet...

  • Page 20

    SCN60 Service Control System The control system operates the machine. The controller operates on 12 volts AC, supplied by the transformer. It uses an ultrasonic ice sensor to measure ice level. The ultrasonic system transmits sound waves into the ice storage bin and measures...

  • Page 21

    SCN60 Service Water System The auger is driven at about 11 RPM by the gear reducer. The gear reducer is a sealed component and does not require lubrication, as it contains a charge of grease. The auger motor drives a set of...

  • Page 22

    SCN60 Service Storage The ice storage system is made up of a plastic lined ice storage bin, covered by an insulated top panel and an insulated swing open door with gasket. The ice storage bin is foamed in place, so the side panels are not removable.

  • Page 23

    SCN60 Service Performance and Technical Specs Overall: • Refrigerant: 4.5 oz R-134a • Compressor: Hermetic, 700 BTUH • Condenser: Forced draft • Fan blade: 3 blade, 6 inch • Evaporator: Stainless steel tube, copper coil jacketed • Metering device: Cap tube •...

  • Page 24

    SCN60 Service Electrical Sequence Upon power being supplied, all the lights will blink once and the control system will immediately check for water in the reservoir. If there is water no further action will occur until the On/Off button is pushed.

  • Page 25

    SCN60 Service Service Diagnosis Problem Likely Cause No power Unit switched off No water, water diagnostic light is on Compressor on, fan on, auger motor not operating Compressor on, fan on, auger motor cutting off on over amp safety Compressor on, auger on, fan blade not...

  • Page 26

    SCN60 Service Service Diagnosis Problem Likely Cause Ice level sensor failure No ice, continued Auger motor on but compressor and fan motor are off. Ice making light on, nothing operating. Dirty condenser Air flow blocked Gravity drain restricted Not keeping up, makes...

  • Page 27

    SCN60 Service Component Diagnostics Membrane Switch Unplug and check connector pins (left side is pin 1), read about 10 ohms when activating the button, and OL when not pressing the button: Pin 2-3 On/Off Switch; 4-3 Clean Reset Switch Compressor...

  • Page 28

    SCN60 Service Ice Capacity The rate of ice making is relatively fixed, it depends upon the heat load and the ambient temperature the machine is operating in. As either increase the amount of ice made will decrease. The machine will work to keep the ice bin full. A full bin of ice is when the ice level is even with the top of the front of the bin.

  • Page 29

    SCN60 Service Removal and Replacement Component Access The machine is designed to be cleaned while built in. See the Maintenance section for more information. Most components require the machine to be removed from a built-in situation: • Fan motor – side service panel •...

  • Page 30

    SCN60 Service SCN60 Gearbox Access & Removal Shut off water supply Remove drain plug inside bin compartment Disconnect power supply or unplug unit Hazard of Electrical Shock. Disconnect Electrical Power Before Servicing. Uninstall unit and pull out as needed for top and back access.

  • Page 31

    SCN60 Service Remove breaker & set aside Pull auger from freezer by lifting straight up (be careful as auger has sharp edges!) Note: If auger does not lift freely, see Auger Removal Procedure. Inspect auger flights for signs of wear...

  • Page 32

    SCN60 Service Water Seal Replacement Go through the prior steps to remove the gear reducer. Remove rotating half of water seal from bottom of auger. Rotating Half of Water Seal Clean auger of any sealant at water seal mounting position.

  • Page 33

    SCN60 Service 13 Slide breaker onto auger shaft. Secure with the original four allen head bolts. 14 Reverse the balance of the steps to complete putting the machine back together. Gear Reducer Replacement The gear reducer contains no internal serviceable parts. Replace as a unit.

  • Page 34

    SCN60 Service Evaporator Replacement Go through all steps to remove the gear reducer. Add temporary refrigeration system access valves to the discharge and suction sides of the refrigeration system . Recover the refrigerant. Un-sweat the suction line and cap tube connections from the evaporator.

  • Page 35

    SCN60 Service Drain Pump (if equipped) Shut off water supply Remove all ice and/or any standing water. Disconnect power or unplug unit Uninstall and pull unit out to get access to left side service panel. Remove five screws and the service panel.

  • Page 36

    SCN60 Service Compressor replacement. Shut off water supply Disconnect power supply or unplug unit Uninstall unit and pull out as needed for side and back access. Remove back panel including drain and power supply panels. Remove side service panel. Go through all steps to remove drain pump and/or fan motor.

  • Page 37

    SCN60 Service Bin and Cabinet The bin and cabinet can be separated from the base. Either the ice making evaporator system must be lifted out and securely suspended or the refrigeration system opened and the connections to the evaporator unbrazed.

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