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Scotsman FME2404, Руководство по обслуживанию

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Scotsman FME2404 Скачать руководство пользователя страница 14

OPERATION: Performance

Typical Low Side Pressure

·

Air Cooled: 34 - 38 PSIG

·

Water Cooled: 32 PSIG

Typical Discharge Pressure

·

Air Cooled: 220 - 275 PSIG

·

Water Cooled: 245 PSIG

Typical Compressor Amp Draw

·

Single phase = 4.3

·

Three phase = 2.8

Superheat

·

5 - 7 degrees

High Pressure Cut Out - automatic reset

·

450 PSIG

Low Pressure Cut Out - automatic reset

·

15 PSIG

Refrigerant Charge

·

Air Cooled: 30 ounces R-404A

·

Water Cooled: 24 ounces R-404A

NME1854 & FME2404

January 2000

Page 14

Содержание FME2404

Страница 1: ...ontrol Box Page 12 ELECTRICAL SEQUENCE Page 13 OPERATION Performance Page 14 OPERATION Water Page 15 OPERATION Refrigeration Page 16 CLEANING and SANITATION Page 17 SENSOR MAINTENANCE Page 18 BEARING...

Страница 2: ...25 22 oz FME2404AS 3 A or B 42 x 24 x 27 208 230 60 3 Flake Air 15 9 20 30 oz FME2404WS 3 A 42 x 24 x 27 208 230 60 3 Flake Water 14 6 20 24 oz FME2404WS 3 B same 208 230 60 3 Flake Water 14 6 20 24...

Страница 3: ...d recommendations regarding filters and treatment 2 In most cases the water used to make ice should be filtered or treated depending upon the water There is no one type of water filter that will be ef...

Страница 4: ...the way in preparation for leveling later Return the bin to the upright position remove paper covering the bin gasket Note Do not push bin into position instead lift it there Pushing a bin especially...

Страница 5: ...NME1854 FME2404 January 2000 Page 5 FOR THE INSTALLER Location ALLOW ROOM FOR AIR CIRCULATION AND SERVICE ACCESS DO NOT STACK ANYTHING IN FRONT OF THE MACHINE...

Страница 6: ...s water to both water cooled condensers The water pressure to all lines must always be above 20 psig and below 80 psig Drains Air Cooled Models Connect a drain tube to the one FPT gravity drain fittin...

Страница 7: ...quires a solid chassis to earth ground wire The ice machine must be connected to its own electrical circuit so that it is individually fused Voltage variation must remain within design limitations eve...

Страница 8: ...3 Have all the plumbing connections been made and checked for leaks ______4 Has the machine and bin been leveled ______5 Is there a minimum of 6 clearance at the back of the machine for proper service...

Страница 9: ...o the drain 5 The unit will soon be making ice If desired the low side pressure of each system may be checked it should be 33 psig or 2 PSIG The suction line temperature at the compressor is normally...

Страница 10: ...ains the water level sensor Water Level Sensor Senses if there is water in the reservoir to make ice out of Will shut the machine off it there is none Ice Discharge Chute Directs the ice produced by t...

Страница 11: ...he 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 Divider Where the ice is compressed and much of the extra water is sq...

Страница 12: ...rs are for ice level and water level The relays are for the gear motor with a built in time delay to clear the evaporator of ice when the unit turns off and for the compressor contactor Potential Rela...

Страница 13: ...pressor stops The auger motor stays on for 1 more minute clearing out ice in the evaporator and then The auger motor relay opens LED3 goes out and the auger motor stops The compressor will not restart...

Страница 14: ...ed 220 275 PSIG Water Cooled 245 PSIG Typical Compressor Amp Draw Single phase 4 3 Three phase 2 8 Superheat 5 7 degrees High Pressure Cut Out automatic reset 450 PSIG Low Pressure Cut Out automatic r...

Страница 15: ...h evaporator Reservoir overflow or evaporator condensation is routed to the drain Water cooled models have a separate water circuit for the cooling water it enters the fitting at the rear divides and...

Страница 16: ...rature of the evaporator warmer evaporators get more refrigerant and colder evaporators get less At the evaporator the refrigerant enters an area of relatively low pressure where it can easily boil of...

Страница 17: ...empty switch the master switch to OFF 11 After draining the reservoir as in step 6 wash and rinse the water reservoir 12 Go thru steps 13 19 to sanitize the ice machine water system 13 Mix two gallons...

Страница 18: ...trated 2 The ice machine senses water level by a probe located in the water reservoir At least twice a year the probe should be removed from the reservoir and the tip wiped clean of mineral build up N...

Страница 19: ...of the bearing It should rotate smoothly To remove the breaker take out all four allen head cap screws and pull the breaker off the auger and evaporator If the bearing only needs grease inject grease...

Страница 20: ...the fan motors C Pull fan motor assembly off of locating pins and out of the unit D Clean the condenser reassemble by placing the fan motor assembly onto the locating pins replacing the mounting scre...

Страница 21: ...AL AND REPLACEMENT 1 To remove the auger remove the front and top panels 2 Push back bail clamp holding ice chute cover to ice chute and remove cover 3 Unscrew and remove ice sweep 4 Loosen band clamp...

Страница 22: ...ger and in evaporator Low pressure control open Auger not turning due to motor failure auger relay failure on circuit board or gears stripped Check drive train TXV restricted or not metering Check bul...

Страница 23: ...regulating valve not adjusted properly Adjust to 245 PSIG discharge pressure Reservoir float valve leaks thru Replace float valve or seat Water cooled model overcharged with refrigerant Recover and w...

Страница 24: ...compressor is not check the compressor contactor coil If it is on the ice sensors may be blocked Remove them and check for mineral scale Scotsman s test box can also be used to determine if the ice se...

Страница 25: ...eassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove the front panel 3 Remove the control box cover 4 Locate the ice chute At the base of the chute in front of and behind it...

Страница 26: ...ring 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 bearing i...

Страница 27: ...ews 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 hole is 5 8...

Страница 28: ...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 clean the mounting area 4 Place a sm...

Страница 29: ...he new evaporator at the old tubing connections 6 Install an new drier in the liquid line 7 Evacuate the system until dehydrated 300 microns then weigh in the nameplate charge Check for leaks 8 Instal...

Страница 30: ...ar motor to the base of the machine 3 Remove the gear motor from the ice machine Bench test the gear motor check for oil leaks noise and amp draw To Inspect the gear motor A Remove the cap screws hold...

Страница 31: ...mbly see the illustration 4 Lift up and pull out the fan motor assembly 5 Repair as needed 6 To reassemble Place the fan motor assembly lower flange holes over the two allen head cap screws in the bas...

Страница 32: ...or a restricting device such as a Charge Faster installed in it for metering liquid into the low side of the system 1 After a thorough evacuation shut off the manifold valves and switch off the vacuum...

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