Ice-O-Matic GEM0655 Air Operation: Performance, Typical Low Side Pressure, GEM0650/0956/1256 A/W

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Operation: Performance

GEM0650/0956/1256 A/W

Operation: Performance

Beginning at the compressor, the refrigerant is compressed into a high temperature gas. The discharge line directs this gas to the condenser. At the condenser (air or water cooled) the gas is cooled by either air or water and then it condenses into a liquid.

This high pressure liquid then goes through the liquid line to the expansion valve. The thermostatic expansion valve meters liquid refrigerant into the evaporator, the volume of liquid refrigerant depending upon the temperature of the evaporator.

At the evaporator, the refrigerant enters an area of relatively low pressure, where it can easily “boil off” or evaporate. As it evaporates, it absorbs heat from the evaporator and whatever is in contact with it (such as water inside it). After the evaporator, the refrigerant, now a low pressure vapor, goes through the suction line back to the compressor, where the cycle is repeated.

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:

 

GEM0650 115/60/1

8-9 Amps

GEM0655 230/50/1

5-7 Amps

GEM0956 208-230/60/1

4-5 Amps

GEM1256 208-230/60/1

5-6 Amps

Typical Auger Drive Motor Amp Draw:

 

GEM0650 115/60/1

3.1 to 3.8 Amps

GEM0655 230/50/1

1.6 to 3.8 Amps

GEM0956 208-230/60/1

1.6 to 1.8 Amps

GEM1256 208-230/60/1

1.6 to 1.8 Amps

Expansion Valve Superheat:

6-8 degrees

High Pressure Cut Out- Automatic Reset:

450 PSIG

Low Pressure Cut Out- Automatic Reset:

15 PSIG

Refrigerant Charge: R404A

 

GEM0650

 

Air Cooled:

24 ounces

Water Cooled:

19 ounces

GEM0655

 

Air Cooled:

24 ounces

GEM0956

 

Air Cooled:

30 ounces

Water Cooled:

22 ounces

GEM1256

 

Air Cooled:

36 ounces

Water Cooled:

24 ounces

 

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Contents GEM0650A/W,GEM0956A/W and GEM1256A/W SERVICE AND INSTALLATION MANUALGEM0655 Air Page Keep this manual for future reference GEM0650/0956/1256 A/WForward PageTable Of Contents Table of ContentsVisible Loss or Damage Freight Claim ProcedureInspect Promptly Concealed Loss or DamageLimitation of Warranty WarrantyICE-O-Matic Filing a ClaimElectrical Specifications For the InstallerInstallation Guidelines AdjustmentsFor The Installer GEM0650/0655/0956A/WGEM1256A/W Ice Machine Specifications Bin ApplicationIce machine LocationStorage Bin Water LimitationsGEM 0650/0956/1256 A/W WATER COOLED MODELS For the PlumberWater Inlet AIR COOLED MODELSWater Cooled Models For the ElectricianElectrical Connections Air Cooled ModelsGEM0650/0956/1256A/W Final Check ListPre-StartInspection Start UpStart Up Component Description Air Cooled Model ShownGEM0650/0956/1256 A/W Component Description Ice Sweep Bearing Breaker/Divider Auger Evaporator Motor Water SealElectrical Sequence To ResetElectrical Sequence Shut DownOperation Water Water SystemOperation: Performance High Pressure Cut Out- Automatic ResetLow Pressure Cut Out- Automatic Reset Typical Low Side Pressurescheduled at a minimum of twice a year Sanitizing and CleaningICE MAKING SYSTEM: In place cleaning KEEP OUT OF THE REACH OF CHILDRENBearing Maintenance Bearing MaintenanceNote Left Hand Threads Bin Control Sensor Sensor MaintenanceWater Sensor GEM0956 Maintenance Air CooledClean the air cooled condenser GEM0650Auger Auger Maintenance1. Disconnect electrical power to the ice machine 2. Turn off the water supply to the ice machinePossible Cause Service DiagnosisSymptom Probable CorrectionGEM0650/0956/1256 A/W Control System Diagnostics 4.High pressure cut out checkWater Reservoir R&R- Water Reservoir, Bin ControlBin Controls Ice Level Sensors To Remove the Breaker Bearing Assembly R&R-Bearingand BreakerR&R-Auger To Remove the AugerRemoval of the Water Seal R&R-WaterSealTo Remove the Water Seal To Replace the Water SealTo Replace the Evaporator R&R-EvaporatorTo Reassemble the Evaporator and Auger To Check the Gear Motor To Remove and Repair the Gear Motor AssemblyR&R-GearMotor To Inspect the Gear MotorR&R-FanBlade and Motor Refrigeration Service Instructions for Liquid Charging R404AGEM0650 Wiring Diagram Wiring Diagram GEM0650 A/WGEM0956 Wiring Diagram Wiring Diagram GEM0956 A/WGEM1256 Wiring Diagram Wiring Diagram GEM1256 A/WGEM0655 Wiring Diagram Wiring Diagram GEM0655 AirService History What to Do Before Calling for Service
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