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icetro IM-770-AF, Installation & Service Manual

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icetro IM-770-AF Installation & Service Manual Download Page 30

Maintenance Suggestions

Air Filters

Clean These Items Weekly

Suggested Maintenance Schedule

Maintenance intervals will vary with ambient & water conditions.

These are only suggestions.

30

YEARLY

●

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

Summary of Contents for IM-770-AF

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

Page 2: ...Ice Machine Specs 2 ...

Page 3: ...Ice Machine Specs 3 ...

Page 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 ...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 9: ...IM 0770 LED Functions 9 ...

Page 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...

Page 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 ...

Page 12: ...IM 0770 Wiring Diagram 12 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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...

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

Page 22: ...IM 0770 Parts Breakout 22 ...

Page 23: ...23 IM 0770 Parts Breakout ...

Page 24: ...24 IM 0770 Parts Breakout ...

Page 25: ...25 IM 0770 Parts Breakout ...

Page 26: ...26 IM 0770 Parts Breakout ...

Page 27: ...IM 0770 Parts Breakout 27 ...

Page 28: ...IM 0770 Parts Breakout 28 ...

Page 29: ...IM 0770 Parts Breakout 29 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

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

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