Scotsman ND650 Скачать руководство пользователя страница 17 | Manualshive

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OPERATION: Ice Vending

When the ice dispensing glass
filler lever is pushed, an electrical
circuit is made to the portion
control module in the control box.
That module will energize the
agitator drive motor for a certain
length of time, depending upon the
setting of the portion control knob.
The dispensing takes place when
the agitator sweeps the ice over
the ice dispensing chute: ice will
continue to discharge out this
chute as long as the agitator is
turning. It stops when the agitator
stops.

AGITATOR

BIN BOTTOM

DRIVE MOTOR

ICE CHUTE

VEND SWITCH

GLASS FILLER

LEVER

SINK

ND650

March, 1989

Page 17

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Содержание ND650

Страница 1: ...nents 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 F...

Страница 2: ...ize and type per National Electric Code ND650AE 1A ND650WE 1A ND650AS 1A ND650WS 1A 48 88 x 26 x 21 5 same same same NUGGET same same same Air Water Air Water 115 60 1 115 60 1 115 60 1 115 60 1 17 2...

Страница 3: ...nufacturing plant it takes a raw material water and turns it into a food product ice The purity of the water is very important in obtaining pure ice and in maximizing product life This section is not...

Страница 4: ...o match the outside edge of the cabinet base and sink The icemaker dispenser is heavy use of a mechanical hoist is recommended to lift it to the height required to install it The DMS machine stand has...

Страница 5: ...the base or at either side through the pre punched holes using standard plumbing practices Interior plumbing lines must be disconnected from the original connections and plugged when routing through...

Страница 6: ...nd recommended to insure that high quality drinks are dispensed 7 Install transformer in upper compartment of icemaker dispenser using screws provided It may be necessary to pre drill holes 8 Route dr...

Страница 7: ...d to a 3 8 FPT condenser inlet at the back of the cabinet The water pressure to all lines must always be above 20 psig and below 120 psig Drains Air Cooled Models There is one 3 4 FPT drain at the bac...

Страница 8: ...The machine requires a solid chassis to earth ground wire The ice maker should be connected to its own electrical circuit so it would be individually fused Voltage variation must remain within design...

Страница 9: ...lumbing connections been made and checked for leaks 4 Has the machine been leveled 5 Is there a minimum of 6 inches of clearance at the left and right sides of an air cooled machine 6 Is there a minim...

Страница 10: ...e checked it should be 30 PSIG or 4 PSIG The air cooled discharge pressure will depend upon air and water temperatures but should be between 200 PSIG and 280 PSIG Water cooled discharge pressure shoul...

Страница 11: ...as the level of ice in the bin changes Drain Tube When uncapped and lowered drains the evaporator Condenser Air or water cooled where the heat removed in ice making is discharged Ice Storage Bin Asse...

Страница 12: ...where the two seal faces meet Ice Sweep A plastic cap with fingers It revolves with the auger to sweep the ice into the ice chute Breaker Where the ice is compressed and much of the extra water is squ...

Страница 13: ...ard On Off Switch Manual control for the machine Transformer Supplies low voltage to the circuit board Potential Relay The compressor start relay Reset Switch Part of Circuit Board manual reset Lights...

Страница 14: ...the machine off if there is not enough water in the machine When the water level in the reservoir falls below the water level sensor the machine will shut down When the water refills the reservoir the...

Страница 15: ...all routed to the drain Water cooled models have a separate water circuit for the cooling water it enters the fitting at the rear goes to the water regulating valve then to the water cooled condenser...

Страница 16: ...rant depending upon the temperature of the evaporator warmer evaporators get more refrigerant and colder evaporators get less At the evaporator the refrigerant enters an area of relatively low pressur...

Страница 17: ...motor for a certain length of time depending upon the setting of the portion control knob The dispensing takes place when the agitator sweeps the ice over the ice dispensing chute ice will continue t...

Страница 18: ...ic and Hydroxyacetic acids These compounds are corrosive and may cause burns If swallowed DO NOT induce vomiting Give large amounts of water or milk Call Physician immediately In case of external cont...

Страница 19: ...sensors from the grommets in the ice chute and wipe them clean 3 The bearing in the breaker should also be checked at least two times per year A Check the bearing by removing the ice chute cover unsc...

Страница 20: ...cialist regarding water treatment For more information on removal of these parts see REMOVAL AND REPLACEMENT 1 To remove the auger remove the front and top panels 2 Remove 3 hex studs holding ice chut...

Страница 21: ...e and weigh in the nameplate charge E Check the high pressure cut out if closed go to F if open 1 The pressure control opens at 450 psig Check the high side pressure reset the control and observe on w...

Страница 22: ...in full light on the tester should be ON if not replace the circuit board If the bin full light on the tester is ON move the tester switch to bin empty the light on the tester should go OFF and the bi...

Страница 23: ...ontactor coil If the coil is open replace the contactor 3 Check the auger drive motor centrifugal switch If when the drive motor is running contact 4 black wire removed has no power and all of the abo...

Страница 24: ...ater leaks replace the water seal if found to be leaking 3 Check the low side pressure normal is about 30 psig If low assume a refrigerant leak locate repair and recharge If no leak the TXV may be res...

Страница 25: ...se check for voltage at the agitator drive motor if none replace the portion control module in the control box If there is voltage and the agitator motor output shaft does not turn replace the agitato...

Страница 26: ...mounting screws from reservoir bracket and remove reservoir from icemaker 8 Reverse to reassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front panel 3 Remove control box...

Страница 27: ...p screws holding breaker to evaporator d Lift up and remove breaker bearing assembly from auger evaporator 6 Service the bearing Check for rust rough spots and damage a The bearing is pressed into the...

Страница 28: ...nd unscrew stainless breaker cover from breaker left hand threads b Unscrew auger stud from top of auger c Unscrew 4 allen head cap screws holding breaker to evaporator d Lift up remove breaker from e...

Страница 29: ...ove for the snap ring 2 Replace the snap ring and pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the auger...

Страница 30: ...earmotor has been inspected fasten the evaporator to the gear motor be sure that the number of shims indicated on the gear case cover is in place between the gearcase cover and the drip pan gasket Tor...

Страница 31: ...ars the oil having a creamy white appearance oil level too high carefully inspect the bearings and gears If in doubt about the condition of a part replace it The oil quantity is 14 fluid ounces do not...

Страница 32: ...ED GREASE SEAL GEARCASE COVER FIRST GEAR AND BEARINGS SECOND GEAR AND BEARINGS GASKET GEARCASE ROTOR SHAFT SEAL ROTOR BEARING DRIVE MOTOR CENTRIFUGAL SWITCH WARNING Disconnect electrical power before...

Страница 33: ...All testing is done with the electrical power on the master switch on and all reset switches reset 1 Unplug photo trans and LED connectors from the circuit board 2 Plug photo trans and LED connectors...

Страница 34: ...Water position The No Water light on the circuit board should go ON If not replace the circuit board b Move the water switch on the tester to the Water position The No Water light on the board should...

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