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Scotsman FME 1204, Руководство пользователя

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Scotsman FME 1204 Скачать руководство пользователя страница 15

NME954 & FME1204

May 2001

Page 15

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 (auto reset)

·

450 PSIG

Low Pressure Cut Out (auto reset)

·

15 PSIG

Refrigerant Charge

·

Air Cooled: 30 ounces R-404A

·

Water Cooled: 24 ounces R-404A

Condenser

Fan

Motor

Liquid

Line

Thermostatic

Expansion Valve

Suction Line

Gear

Motor

Compressor

Discharge

Line

Refrigeration Schematic

Evaporator

Содержание FME 1204

Страница 1: ...T UP Page 9 COMPONENT DESCRIPTION Page 10 COMPONENT DESCRIPTION Page 11 CONTROL BOX Components Page 12 ELECTRICAL SEQUENCE Page 13 OPERATION Water Page 14 OPERATION Performance Page 15 SANITIZING AND...

Страница 2: ...ED SPECIFICATIONS Ice Machine ELECTRICAL INLET 3 2 1 5 7 WATER INLET 3 8 FLARE DRAIN FPT BACK VIEW AIR COOLED 5 25 9 5 Note Allow 6 behind and 6 above either unit for air circulation utility connectio...

Страница 3: ...NME954 FME1204 May 2001 Page 3 SAMPLE BIN AND MACHINE COMBINATIONS FME1204 ON BH550 NME954 ON BH800 FME1204 ON BH900 Bin Top Kit Required The Nameplate is located on the back of the machine...

Страница 4: ...space around it so that it is accessible for service Keep the back of air cooled machines a minimum distance of 6 from a wall for air circulation Try to avoid hot dirty and crowded locations Be sure t...

Страница 5: ...heat and noise it produces are not objectionable Air cooled machines discharge hot air out the back 6 of space behind the machine is the minimum required for adequate operation of an air cooled unit...

Страница 6: ...o all lines must always be above 20 psig and below 80 psig Drains Air Cooled Models Connect a rigid drain tube to the 3 4 FPT drain fitting at the back of the cabinet The drain is a gravity type and i...

Страница 7: ...ires leads in the junction box on the back of the machine Connect the ice machine to its own electrical circuit so it is individually fused Voltage variation must remain within the limitations even un...

Страница 8: ...ts ____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 serv...

Страница 9: ...ter cooled models the water regulating valve will open and warm water will be discharged into the drain 5 The unit should soon be making ice if desired the low side pressure may be checked it should b...

Страница 10: ...a constant level it also contains 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...

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

Страница 12: ...the ice machine using input from sensors and pressure controls Switches loads on and off thru relays See photo below Potential Relay The compressor start relay Mode On Off Switch Manual control for t...

Страница 13: ...ays 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 until 2 minutes or more have pa...

Страница 14: ...ttom of the 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 go...

Страница 15: ...SIG Typical Compressor Amp Draw Single phase 4 3 Three phase 2 8 Superheat 5 7 degrees High Pressure Cut Out auto reset 450 PSIG Low Pressure Cut Out auto reset 15 PSIG Refrigerant Charge Air Cooled 3...

Страница 16: ...arly 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 18 to sanitize the ice machine water system 13 Mix two ga...

Страница 17: ...ipe the inside clean as illustrated 2 The ice machine uses a probe in the reservoir to determine if there is water At least twice a year remove the probe from the reservoir and wipe the tip clean of m...

Страница 18: ...to check the action of the bearing It should rotate smoothly To remove the breaker remove the lower ice chute then take out all four allen head cap screws and pull the breaker off the auger and evapor...

Страница 19: ...er and remove the filter The filter may be cleaned or replaced B Clean the condenser the condenser may appear to be clean on the surface but it can still be clogged internally Check with a flash light...

Страница 20: ...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 Remove ice chute from evaporator 5 R...

Страница 21: ...s shut ice machine down due to high auger motor amp draw Check for cause of high amp draw including bearings gearmotor condition and scale on auger and in evaporator Low pressure control open Auger no...

Страница 22: ...water use Water cooled model water regulating valve not adjusted properly Adjust to 245 PSIG discharge pressure Reservoir float valve leaks thru Replace float valve or seat Water cooled model overcha...

Страница 23: ...ssor 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 sensors or board are defective Using...

Страница 24: ...se to reassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front panel 3 Remove control box cover 4 Locate ice chute at the base of the chute in front of and behind it are...

Страница 25: ...bor press is needed b Replace lower seals before installing new bearing in breaker Note seals must be pressed in with a tool pushing against the outer edge only they will not install by hand Replace p...

Страница 26: ...rom 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 18 Inspect the auger the critical areas of the auger are 1...

Страница 27: ...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 small bead of food grade silastic sea...

Страница 28: ...cuate the system until dehydrated then weigh in the nameplate charge Check for leaks 8 Install auger breaker breaker bearing assembly and ice discharge chute in reverse order of disassembly To Reassem...

Страница 29: ...est the gear motor check for oil leaks noise and amp draw NME954 FME1204 May 2001 Page 29 REMOVAL AND REPLACEMENT Gearmotor Electrical shock hazard Electrical shock can cause personal injury Disconnec...

Страница 30: ...otor Electrical shock hazard Electrical shock can cause personal injury Disconnect power before beginning to service components 4 Lift up the fan motors and bracket assembly about and pull out the fan...

Страница 31: ...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 vacuu...

Страница 32: ...off if there is no water to it Check the filters if there are any 2 Check the power supply to the machine Reset the breaker if it is tripped 3 If both water and power have been checked and are availa...

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