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icetro IM-770-AF, Инструкция по установке и обслуживанию

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IM-0770

Sequence Of Operation

8

IM-0770-AN/AF Sequence of Operation

Start-Up Sequence

Power switch set to the “ICE” position:

•

Gear motor, inlet water valve, and bypass valve is energized simultaneously.

•

Bypass valve stays energized for 50 seconds.

•

Bypass valve is de-energizes for 10 seconds.

•

Compressor energizes and freeze cycle begins.

•

Once the head pressure reaches 235 psig, the fan cycle switch closes and the fan motor energizes.

Shut-Down Sequence

Power switch set to the “OFF” position while in freeze:

•

Compressor is de-energizes immediately.

•

Head pressure drops to 175 psig & the fan cycle switch opens, de-energizing the fan motor.

•

Gear motor de-

energizes 1 minutes after the power switch is put in the “OFF” position.

Note: Sump remains full of water.  Dump valve does not energize and drain, so the 
sump remains full of water when the machine is off.

Shut-Down Sequence Via Bin Switch

Same as the previous shut-down sequence:

•

When the bin-switch is made or broken, the machine starts or stops with nearly no delay (2 seconds max).

Purge Cycle (set for every 12 hours)

Total Cycle Time = 20 minutes:

•

Compressor is de-energized.  Dump valve energizes (emptying sump) and the gear motor remains energized.

•

Approximately 5 minutes in, the gear motor is de-energized & the inlet water valve is energized, refilling the 
sump and flooding the evaporator with water.

•

19 minutes in, the dump valve is energized (draining all water).

•

19.5 minutes in, the inlet water valve & gear motor is energized.

•

20 minutes in, the compressor is energized.

•

When head pressure reaches 230 psig, the fan motor is energized

Note: The machine drains & refills 2 times, not continuously.

Содержание IM-770-AF

Страница 1: ...IM 770 AN F INSTALL SERVICE MANUAL ...

Страница 2: ...Ice Machine Specs 2 ...

Страница 3: ...Ice Machine Specs 3 ...

Страница 4: ...please pay close attention to the packaging for any damage to the crating If there appears to be any exterior damage please either note the damaged on the delivery bill of lading OR refuse it Failure to note damage on BOL or refuse damaged equipment means that the receiver accepts all liability for damaged equipment Damage 4 ...

Страница 5: ...le Required water pressure is 20 psi minimum and 80 psi maximum This unit is designed to work with water temperatures of 50 F 90 F 7 Is the unit installed in an area with sufficient ventilation at the back for proper rejection of condenser heat The manufacturer requires 17 of clearance above the unit for maintenance and service Additionally 8 of clearance is required at the back and sides of the u...

Страница 6: ... will begin to enter the ice storage bin after 3 minutes of the compressor condenser fan being energized The size of your ice storage bin plus the ambient water temps will Determine how long it will take to fill the bin Proper Installation IM 0770 6 ...

Страница 7: ...eliminate improper operation Additionally it is recommended to use the supplied seismic brackets to secure the ice machine and bin together An air deflector is included with self contained air cooled models to prevent exhausted air from returning back to the condenser Seismic Bracket Air Deflector ...

Страница 8: ...ion Note Sump remains full of water Dump valve does not energize and drain so the sump remains full of water when the machine is off Shut Down Sequence Via Bin Switch Same as the previous shut down sequence When the bin switch is made or broken the machine starts or stops with nearly no delay 2 seconds max Purge Cycle set for every 12 hours Total Cycle Time 20 minutes Compressor is de energized Du...

Страница 9: ...IM 0770 LED Functions 9 ...

Страница 10: ...dditional 60 seconds to protect the motor from any remaining water or ice that may be in the cylinder If the dump valve is energized and the machine is draining the ice machine will stop all operation once all draining has stopped If OFF is selected less than 1 minute after DRAIN is selected while the machine is making ice the motor will run for its remaining time before all operation is stopped 1...

Страница 11: ...11 IM 0770 Drop Zone IM 0770 AN AF Drop Zone Chart A 11 3 B 11 4 C 22 D 25 4 A B C D Ice Outlet is 5 4 ID ...

Страница 12: ...IM 0770 Wiring Diagram 12 ...

Страница 13: ...IM 0770 PCB 13 Main Power Heater Cond Fan Comp Bypass Valve Dump Valve Motor Tachometer LED Display Float Switch Bin Switch Mode Switch HPS S L Thermistor L L Thermistor Water Valve Gear Motor D S ...

Страница 14: ...IM 0770 Key Features Urethane insulated sealed to prevent moisture penetration which can rupture the refrigeration serpentine Non vented gear box to prevent lubrication breakdown 14 ...

Страница 15: ...uder Heads are Interchangeable Carbon bearing is pressed inside of extruder head No grease or maintenance to prevent major mechanical breakdowns Simply check extruder bearing replace if required Extruder with Carbon Bearing Pressed Into Place 15 IM 0770 Key Features ...

Страница 16: ...7 of clearance is required to service and remove auger on the IM 0770 Pin cut spring insertion in bottom of flight Spline cut fits into reverse spline coupling on gear box shaft which ensures no imbalance in bottom bearing Spring loaded carbon ceramic mechanical seal Tapered flight reduces torque 16 IM 0770 Key Features ...

Страница 17: ...peration continues The water only fills to the lower part 1 Open 0 Close The current operation continues No definition Physically impossible 1 Open 1 Open OFF Water tank Full Water valve operates separately according to the water level sensor Water tank Empty The water only fills to the lower part Water tank Full 17 IM 0770 Key Features Water Level Float Switch ...

Страница 18: ...ane insulation the lower housing assembly and or the gear box and destroy those parts When removing bolts new o rings and or new bolts with o rings should be used If bolts are not tightened properly or o rings damaged the leaks above will occur Should the drain pan s drain line become plugged it will overflow and cause scale to greatly damage unit 18 IM 0770 Service Tips ...

Страница 19: ...o evaporator barrel for leaks Drains have been enlarged to prevent overflow scale buildup on critical parts Use caution during reassembly to ensure all new bolts are cross tightened evenly Note Evaporator barrel bolts are reverse thread to remove 19 IM 0770 Service Tips ...

Страница 20: ...mp Error Ambient temp is lower than 33 8 F Temp indicator flashes every 4 seconds Raise ambient temperature above 50 F High Condenser Temp Error Ambient temp is too high or condenser fails to cool below 167 F Temp indicator light is on Lower ambient temperature Check air filter condenser Check fan motor blade Check fan cycle switch Check L L thermistor Locked Motor Error Motor is locked by foreign...

Страница 21: ...IM 0770 P T Chart Cycle Times 21 ...

Страница 22: ...IM 0770 Parts Breakout 22 ...

Страница 23: ...23 IM 0770 Parts Breakout ...

Страница 24: ...24 IM 0770 Parts Breakout ...

Страница 25: ...25 IM 0770 Parts Breakout ...

Страница 26: ...26 IM 0770 Parts Breakout ...

Страница 27: ...IM 0770 Parts Breakout 27 ...

Страница 28: ...IM 0770 Parts Breakout 28 ...

Страница 29: ...IM 0770 Parts Breakout 29 ...

Страница 30: ...Y Water Dump Solenoid Water Inlet Solenoid Water Supply Drain Lines Wear Cracks to the Mechanical Seal Auger Bearing Clearances Wear Cracks to the Housing Assy Spline Coupling Wear Cracks to O Rings Inspect These Parts Yearly Mechanical Seal Auger WEEKLY Air filters are located on the front and left side panels Clean air filter with water Dry replace after cleaning Dump Valve Water Valve ...

Страница 31: ...ace the mechanical seal Replace the housing o ring Inspect the coupling for wear cracks etc replace if necessary Lift coupling from gearbox and inspect for wear cracks etc Preventative Maintenance Technicians Only Mechanical Seal Auger Housing Coupling O Ring red Evaporator Cylinder Suggested Maintenance Schedule Maintenance intervals will vary with ambient water conditions These are only suggesti...

Страница 32: ...screws from the ice chute assembly and lift up to remove it 7 Pour the pre mixed cleaning solution in through the extruding head until the evaporator and water reservoir are full The solution will overflow from the drip pan when it s full If too much scale at the extruding head clogs the hose between the water reservoir the evaporator fill with cleaning solution until the water reservoir is full u...

Страница 33: ...pen the water supply valve and set the power switch to ICE When the gear motor starts running turn the power switch to DRAIN to drain the water for 5 minutes 15 Set the power switch to ICE and make ice for 30 minutes 16 Set the power switch to OFF and pour warm water in through the ice chute and into the ice bin to melt all the ice and drain the water Then clean the bin with mild detergent Make su...

Страница 34: ...install lack of cleaning inadequate water treatment or airborne slime Bacteria Citryne by Systems IV for all machines with pH over 7 0 Carbon filtration removes chlorine If there is slime or growth inside of the machine it is from airborne particulate Carbon removes chlorine Cleaning requires both Ice machine cleaner sanitizer and should be done under good conditions 1 2 times per year 34 ...

Страница 35: ...water is between 6 and 8 5 The pH value of water is used to determine whether water is hard or soft Pure water has a pH of 7 and water lower than 7 pH is considered acidic Citryne is for all ice makers with water pH above 7 For systems with pH 7 or below use carbon polyphosphate filters 35 ...

Страница 36: ...THANK YOU 1 15 2022 ...

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