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Scotsman NDE550, Руководство по обслуживанию

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Содержание NDE550

Страница 1: ...R THE INSTALLER Environmental Limitations 3 FOR THE INSTALLER Wall Mount Kit 5 FOR THE INSTALLER Soda Valve Kit 6 FOR THE PLUMBER 7 FOR THE ELECTRICIAN 8 FOR THE INSTALLER Final Check List 9 INITIAL S...

Страница 2: ...KH LQVWDOODWLRQ FKHFN WKDW DOO WKH PDWHULDOV DQG NLWV UHTXLUHG DUH DYDLODEOH DW WKH LQVWDOODWLRQ ORFDWLRQ 63 7 216 0RGHO 1XPEHU LPHQVLRQV Z G K RQGHQVHU 7 SH DVLF OHFWULFDO 0LQ LUF PSDFLW 0D XVH 6L H...

Страница 3: ...uring 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 intend...

Страница 4: ...grade silastic sealant such as Scotsman part number 19 0529 01 is recommended Place a bead of the sealant on the machine stand or counter top to match the outside edge of the cabinet base and sink Th...

Страница 5: ...r 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 the side or base 1 Re...

Страница 6: ...should be insulated A carbonated water recirculating line is provided and recommended to insure that high quality drinks are dispensed 9 Install transformer in upper compartment of icemaker dispenser...

Страница 7: ...o 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 80 psig Drains Air Cooled Models There is one 3 4 FPT drain at the back of...

Страница 8: ...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 lim...

Страница 9: ...ing 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 minimum o...

Страница 10: ...e pressure may be checked it should be 38 PSIG or 2 PSIG The air cooled discharge pressure will depend upon air and water temperatures but should be between 240 PSIG and 340 PSIG Water cooled discharg...

Страница 11: ...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 Assembly A plastic lined insulated cylinder...

Страница 12: ...e 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 squeeze...

Страница 13: ...vaporator of ice when the unit turns off and for the compressor On Off Switch Manual control for the machine Transformer Supplies low voltage to the circuit board Potential Relay The compressor start...

Страница 14: ...ice in the evaporator and then The auger motor relay opens and the auger motor stops If the ice level sensor is clear bin empty for more than 15 seconds the machine will start up again Another purpose...

Страница 15: ...s to the water regulating valve then to the water cooled condenser and down the drain There is also an additional water circuit to an electric valve When the water station glass filler lever is pushed...

Страница 16: ...frigerant 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 pr...

Страница 17: ...ertain length of time depending upon the setting of the portion control knob The dispensing takes place when the dispensing vane sweeps the ice over the ice dispensing chute ice will continue to disch...

Страница 18: ...egrees F 8 Slowly pour the cleaning solution into the water reservoir until it is full Wait 15 minutes then switch the master switch to ON 9 As the ice maker begins to use water from the reservoir con...

Страница 19: ...l sensors from the grommets in the ice chute and wipe them clean 4 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 uns...

Страница 20: ...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 Push bail clamp off of cover and remove cover 3 Unsc...

Страница 21: ...harge Check for a Thermostatic Expansion Valve that does not open if defective replace it Replace the drier evacuate and weigh in the nameplate charge E Check the high pressure cut out if closed go to...

Страница 22: ...e bin 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...

Страница 23: ...ntactor 2 Check the contactor 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 pow...

Страница 24: ...r leaks replace the water seal if found to be leaking 3 Check the low side pressure normal is about 38 psig If low assume a refrigerant leak locate repair and recharge If no leak the TXV may be restri...

Страница 25: ...t 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 agitator gear motor assembly...

Страница 26: ...m reservoir 7 Remove 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...

Страница 27: ...the bearing Check for rust rough spots and damage a The bearing is pressed into the breaker to remove the bearing and replace it an arbor press is needed b Replace lower seals before installing new be...

Страница 28: ...ead cap screws holding breaker to evaporator d Lift up remove breaker from evaporator e If the auger is stuck use a slide hammer type puller to pull on the auger at the threaded hole The size of that...

Страница 29: ...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 and...

Страница 30: ...otor 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 Torque...

Страница 31: ...likely to be fine if the oil is If there is evidence of water in the oil rusty bearings and gears the oil having a creamy white appearance oil level too high carefully inspect the bearings and gears I...

Страница 32: ...t is required to locate small refrigerant leaks Usually a leak detector capable of detecting a Halogenated refrigerant or HFC 134A will work Check with the leak detector manufacturer if in doubt As wi...

Страница 33: ...paired This system has a critical charge it must be recharged with the correct amount of refrigerant as listed on the nameplate of the ice machine or performance will suffer Anytime the refrigeration...

Страница 34: ...the circuit board a Move the bin full switch on the tester to Full The light on the tester should be ON If the light on the tester is not on the circuit board should be replaced b If the light on the...

Страница 35: ...ter 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 go...

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