Scotsman ND650 Manual de servicio

Busca en linea o descarga Manual de servicio para Máquinas productoras de hielo Scotsman ND650. Scotsman ND650 Service manual Manual de usuario

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INTRODUCTION
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 maker-dispenser.
The ND650 is a combination nugget ice maker and
countertop dispenser, with the option of wall
mounting. A water station is standard.
The ND650 ice making section is equipped with
the following features: electronic controls for bin
level and low water; thermostatic expansion valve;
front service for most components; and R502
refrigerant. The ice dispensing section is a
seamless plastic storage bin, with a stainless steel
ice agitator at the bottom to sweep the ice into the
dispensing chute.
TABLE OF CONTENTS
For the Installer
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Environmental Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wall Mount Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Soda Valve Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Removal and Replacement
Water Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Bin Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Breaker and Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Water Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Electronic Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Parts Lists and Wiring Diagrams are printed on yellow paper in the center of this manual.
ND650
March, 1989
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Indice de contenidos

Pagina 1 - INTRODUCTION

INTRODUCTIONTo the owner or user: The service manual you arereading is intended to provide you, and themaintenance or service technician with theinfor

Pagina 2

INITIAL START UPPre Start Inspection1. Remove the two front panels.2. Check that all shipping blocks have beenremoved.3. Remove any and all packing ta

Pagina 3

COMPONENT DESCRIPTIONControl Box: Contains the electrical controls thatoperate the machine.High Pressure Cut Out Switch: A manual resetswitch sensing

Pagina 4 - FOR THE INSTALLER

COMPONENT DESCRIPTIONEvaporator: A refrigerated vertical tube filled withwater and containing a water seal and auger.Auger: A solid stainless steel

Pagina 5

COMPONENT DESCRIPTION: Control BoxContactor: A definitepurpose contactor connectingthe compressor to the powersupply.Circuit Board: Controllingthe

Pagina 6

ELECTRICAL SEQUENCERefer the wiring diagram as needed.If the machine is switched off at the master switch,but is otherwise ready to go, switching the

Pagina 7 - FOR THE PLUMBER

OPERATION: WaterWater enters the machine through the 3/8" maleflare at the rear of the cabinet, goes to a strainerand then to the water reservoir

Pagina 8 - FOR THE ELECTRICIAN

OPERATION: RefrigerationBeginning at the compressor, the refrigerant 502 iscompressed into a high temperature gas. Thedischarge line directs this gas

Pagina 9

OPERATION: Ice VendingWhen the ice dispensing glassfiller lever is pushed, an electricalcircuit is made to the portioncontrol module in the control bo

Pagina 10 - INITIAL START UP

MAINTENANCE AND CLEANING//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Pagina 11 - COMPONENT DESCRIPTION

MAINTENANCE AND CLEANING///////////////////////////WARNING/////////////////////////////Disconnect electrical power before beginning.//////////////////

Pagina 12

FOR THE INSTALLER: SpecificationsThis ice maker-dispenser is designed to bemounted on a machine stand, or a countertop, orusing wall mounting kit KWB3

Pagina 13

MAINTENANCE AND CLEANINGIn some areas, the water supply to the ice makerwill contain a high concentration of minerals, andthat will result in an evapo

Pagina 14 - ELECTRICAL SEQUENCE

SERVICE DIAGNOSIS: Condition - No Ice Being ProducedSTATUS: ICE MAKER DOES NOT OPERATEA. Check: Voltage to the unit, restore it if there is none. Comp

Pagina 15 - OPERATION: Water

1. Restore/adjust water level. See the next step.SERVICE DIAGNOSIS: Condition - No Ice Being ProducedSTATUS: ICE MAKER DOES NOT OPERATEH. Check: The g

Pagina 16 - OPERATION: Refrigeration

STATUS: GEARMOTOR OPERATES, COMPRESSOR DOES NOTA. Check the compressor relay.The relay is on the circuit board, if it does not supply power to the con

Pagina 17 - OPERATION: Ice Vending

SERVICE DIAGNOSIS: Condition - Low Ice ProductionSTATUS: EVERYTHING IS OPERATINGA. Check the air cooled condenser for dirt. Clean as required. Check

Pagina 18 - MAINTENANCE AND CLEANING

SERVICE DIAGNOSIS: Condition - Poor or No Ice DispensingSTATUS: There is power to the unit, but no ice dispensedA. Check for ice in the bin. If no ice

Pagina 19

REMOVAL AND REPLACEMENTWATER RESERVOIR1. Shut off the water supply to the icemaker.2. Remove front panel and reservoir cover.3. To remove float only,

Pagina 20

REMOVAL AND REPLACEMENT: Bearing And BreakerNote: Removal of the auger, water seal,evaporator and gearmotor must begin at the top ofthe assembly.To Re

Pagina 21 - ICE MAKER DOES NOT OPERATE

REMOVAL AND REPLACEMENT//////////////////////////WARNING////////////////////////////Disconnect electrical power.Note that the auger has very sharp edg

Pagina 22 - ICE MAKER DOES NOT OPERATE

REMOVAL AND REPLACEMENT: Water SealTo Remove the Water Seal: (Assuming all steps to remove the auger havebeen performed.)1. The gearmotor/evaporator a

Pagina 23 - STATUS:

FOR THE INSTALLER: Environmental LimitationsInstallation LimitationsThis ice system is designed to be installed indoors,in a controlled environment.Mi

Pagina 24 - EVERYTHING IS OPERATING

REMOVAL AND REPLACEMENTTo Replace the Evaporator:(Assuming all the steps for removal of the thrustbearing, breaker, auger, and water seal have beenper

Pagina 25

TO REMOVE AND REPAIR THE GEARMOTOR ASSEMBLY(Assuming that the procedures through removal ofthe water seal have been performed.)1. Remove the electrica

Pagina 26 - REMOVAL AND REPLACEMENT

TO REMOVE AND REPAIR THE GEARMOTOR ASSEMBLYWATER SHEDGREASE SEALGEARCASECOVERFIRSTGEAR ANDBEARINGSSECOND GEARAND BEARINGSGASKETGEARCASEROTOR SHAFTSEAL

Pagina 27 - Steps 5c - 6

REMOVAL AND REPLACEMENTINSTRUCTIONS FOR USING TESTER MODEL FC1 (Optional, order part no. A33942-001)(These instructions assume that the unit will not

Pagina 28

REMOVAL AND REPLACEMENTWater Level1. Unplug "water sen" connector from controlboard.2. Plug "water sen" connector from Scotsmant

Pagina 29

FOR THE INSTALLERLocationAfter uncrating and inspection, the unit is ready forinstallation. It is important that the machine beinstalled in a location

Pagina 30

FOR THE INSTALLER: Wall Mount Kit/////////////////////////WARNING///////////////////////////////It is recommended that the wall mountinginstallation b

Pagina 31 - March, 1989

FOR THE INSTALLER: Soda Valve KitInstallation InstructionsNote: Carbonator and carbonated product coolingsystem are not included./////////////////////

Pagina 32

FOR THE PLUMBERCONFORM TO ALL APPLICABLE CODESWater InletAir Cooled Models: The recommended watersupply is clean, cold water. Use 3/8" O.D. coppe

Pagina 33

FOR THE ELECTRICIANCONFORM TO ALL APPLICABLE CODESThe electrical power to the unit issupplied through the junction box at therear of the machine.Check

Pagina 34

FOR THE INSTALLER: Final Check List1. Is the icemaker-dispenser installed indoors, in alocation where the air and water temperatures arecontrolled, an

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