Instruction/ maintenance manual of the product GEM0956A/W Ice-O-Matic
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ICE-O-Matic 11100 East 45th Ave Denver, Colorado 80239 Part Number 9081350-01 Date 2/07 SERVICE AND INSTALLATION MANUAL GEM0650A/W,GEM0956A/W and GEM1256A/W GEM0655 Air.
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GEM0650/0956/1256 A/W Forward Page i How To Use This Manual ICE-O-Matic provides this manual as an aid to th e end user and service technician in installation and maintenance of the GEM Series ice machines. Do not attempt to perform installation, start-up or maintenance unless you have read and fully understand this manual.
GEM0650/0956/1256 A/W Table Of Contents Page ii Table of Contents Forward........................................................................................................................ ................ Page i Table Of Contents................
GEM0650/0956/1256 A/W Freight Claim Procedure Page iii Important! Inspect Promptly This merchandise has been carefully inspected and packed in accordan ce with the carrier’s packing specifications. Responsibility for safe delivery has been assumed by the carrier.
GEM0650/0956/1256 A/W Warranty Page iv ICE-O-Matic Parts and Labor Domestic & International Limited Warranty Mile High Equipment LLC (the “Company”) warrants ICE-O-Matic brand ice machines, ic.
GEM0650/0956/1256 A/W For the Installer Page 1 Installation Guidelines: For proper operation of the ICE-O-Matic ice machine, the following installation guideli nes must be followed. Failure to do so may result in loss of production capacit y, premature part failures, and may void all warranties.
GEM0650/0956/1256 A/W For The Installer Page 2 GEM0650/0655/0956A/W.
GEM0650/0956/1256 A/W For The Installer Page 3 GEM1256A/W.
GEM0650/0956/1256 A/W For the Installer Page 4 Bin Application The GEM Series are designed to fit the following ICE-O-Matic Bins. ● B42, using Bin Top KBT 24 (Note: GEM0650, GEM0655 and GEM0956 ONLY) ● B25, B40 B55 using Bin Top KBT19. ● B100 using Bin Top KBT 23 (one unit) or KBT 22 (two units).
GEM0650/0956/1256 A/W For the Installer Page 5 Location: ICE-O-Matic ice machines are designed to be installed indo ors in a controlled environment. Install the ice machine in a location where it has enough space around it t o be accessible for service.
GEM 0650/0956/1256 A/W For the Installer Page 6 A llow 6 “Clearance for Air Circulation A proper installation locates the ice machine indoors, but in a place where the heat and noise it produces are not objectionable. Air cooled machines discharge hot air out the back and must have a minimum of 6 inches of clearance behind the ice machine.
GEM0650/0956/1256 A/W For the Plumber Page 7 Water Inlet: ● Air Cooled Models: The recommended water supply is clean, cold water. Use 3/8 inch O.D. copper tubing, connect to the 3/8 inch male flare at the back of the cabinet. Install a hand valve near the machine to control the water supply.
GEM0650/0956/1256 A/W For the Electrician Page 8 Electrical Connections: Check the ice machine nameplate (located on the ba ck panel) for the voltage requirements, and minimum circuit ampacity. The ice machine requires a solid chassis to earth ground.
GEM0650/0956/1256A/W For the Installer Page 9 Final Check List: _______ 1. Is the ice machine installed indoors in a location where the air and water temperatures are controlled and where they do not exceed the design limitations? _____2. Is there an electrical service disconne ct within sight of the installed machine? _____3.
GEM0650/0956/1256 A/W Start Up Page 10 Pre-Start Inspection: 1. Remove the front and side service panels. 2. Check that any shipping blocks have been removed. 3. Inspect the interior of the ice machine for loose screws or wi res. 4. Check that no refrigerant lines are rubbing each other.
GEM0650/0956/1256 A/W Component Description Page 11 ● Control Box: Contains the electrical controls that operate the machine. ● High Pressure Cut Out Switch: An auto-reset switch sensing the high side refrigeration pressure. It wil l shut the machine off if the discharge pressure ex ceeds 450 psig.
GEM0650/0956/1256 A/W Component Description Page 12 ● Contactor: A definite purpose contactor connecting the compressor and the fan motor to the po wer supply. ● Circuit Board: Controls the operation of the ice machine using input from the sensors and pressure controls.
GEM0650/0956/1256 A/W Component Description Page 13 ● Evaporator: A refrigerated vertical tube filled with water and containing a water seal and auger. ● Auger: A solid stainless steel double spiral auger, it pushe s the ice crystals up to the top of the evaporator.
GEM0650/0956/1256 A/W Electrical Sequence Page 14 Electrical Sequence: There are 7 indicator lights on the control board: ● WTR-OK: (Water OK) Green . Normal=Glowing. Glow when there is water in the reservoir. ● PWR-OK: (Power OK) Green . Normal=Glowing.
GEM0650/0956/1256 A/W Operation: Water Page 15 Water enters the machine through the 3/8 inch male flare at the rear of t he cabinet, goes to the water reservoir which it enters through the float valve. The water then goes out the bottom of the reservoir tank to the bottom of the evaporator.
GEM0650/0956/1256 A/W Operation: Performance Page 16 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 coole d) the gas is cooled by either air or water and then it condenses into a liquid.
GEM0650/0956/1256 A/W Sanitizing and Cleaning Page 17 It is the USER’S RESPONSIBILITY to keep the ice machine and ice storage bin in a sanitary condition. Without human intervention, sanitation will not be maintained. Ice machines also r equire occasional cleaning of their water systems with a specifically designed chemical.
GEM0650/0956/1256 A/W Bearing Maintenance Page Bearing Maintenance: The bearing in the breaker should also be checked at least two (2) times per year. Switch the machine OFF and check the bearing. 1. Remove the chute cover. 2. Unscrew the ice sweep 18 3.
GEM0650/0956/1256 A/W Sensor Maintenance Page 19 Slide Bin Controls to Remove Bin Control Sensor: The bin control uses devices that se nse light, therefore they must be kept clean enough so that they can “see”. At least twice a year, remove the bin control sensors from the base of the chute, and wipe the inside clean, as illustrated.
GEM0650/0956/1256 A/W Maintenance: Air Cooled 20 Clean the air cooled condenser: Air flow on this model is from front to back, so the inside of the ice mach ine will have to be available to clean the air cooled condenser. Use a vacuum cleaner or coil cleaner if needed.
GEM0650/0956/1256 A/W Auger Maintenance Page 21 Auger: In some areas, the water supply to the ice machine will contain a high concentration of minerals, and that will result in an evaporator and auger becoming coated with these minerals, requiring a more frequent removal than twice per year.
GEM0650/0956/1256 A/W Service Diagnosis Page 22 Symptom Possible Cause Probable Correction No ice is made nothing operates. •Unit off due to no power •Restore Power •Unit off due to master switc.
GEM0650/0956/1256 A/W Service Diagnosis Page 23 Symptom Possible Cause Probable Correction Unit makes ice, but very slowly •High dischar ge pressure because •Clean filter and condenser. of a dirty condenser. •Low capacity because t he auger and •Clean the water system.
GEM0650/0956/1256 A/W Cont rol System Diagnostics Page 24 The Control System consists of: ● Control Board ● Water Sensors ● Ice Sensors ● High Pressure Cut Out ● Low Pressure Cut Out If the unit is OFF , check the control board: 1. Is the Power OK light on? If not check power to the unit.
GEM0650/0956/1256 A/W R&R- Water Reservoir, Bin Control Page 25 Water Reservoir: 1. Disconnect electrical power supply. 2. Shut off water supply to the ice maker. 3. Remove the front panel. 4. Disconnect water inlet tube from reservoir inlet fitting.
GEM0650/0956/1256 A/W R&R-Bearing and Breaker Page 26 Note : Removal of the auger, water seal, evaporator and gear motor must begin at the top of the assembly. To Remove the Breaker Bearing Assembly: 1. Disconnect electrical power. 2. Remove panels.
GEM0650/0956/1256 A/W R&R-Auger Page 27 To Remove the Auger: 1. Disconnect electrical power. 2. Turn off the water to the machine. 3. Unclip the evaporator drain hose, pull it down and drain the evaporator into the bin or container. 4. Remove the top panel.
GEM0650/0956/1256 A/W R&R-Water Seal Page To Remove the Water Seal: (Assuming all steps to remove the auger have been performed) 1. The gear motor/evaporator assembly will have to be exposed. 2. Remove the four (4) hex head cap screws holding the evaporator to the gear motor assembly.
GEM0650/0956/1256 A/W R&R- Evaporator Page 29 To Replace the Evaporator: (Assuming all steps for removal of the thrust bearing, breaker, auger and water seal have been performed). 1. Recover the refrigerant from the ice machine. 2. Unsweat the refrigerant connections: a.
GEM0650/0956/1256 A/W R&R-Gear Motor Page 30 To Check the Gear Motor: 1. Remove wires from terminals 1 and 2 2. Use an ohmeter to check for continuity. If there is none, replace only the motor. If there is continuity but the motor will not start, check the motor’s start switch.
GEM0650/0956/1256 A/W R&R-Fan Blade and Motor Page 31 To Remove the Condenser Fan Motor Assembly: (GEM0956 Shown) 1. Disconnect electrical power to the ice machine 2. Remove top panel and the service panels. 3. Unplug the fan motor wire leadsfrom the fan motors.
GEM0650/0956/1256 A/W Refrigeration System Service Page 32 Refrigeration Service: General: This ice machine uses R404A refrigerant and polyolester oil. Do NOT use mineral oil in this refrigeration system. ● When the refrigeration system is serviced, a special l iquid line drier is required.
GEM0650/0956/1256 A/W GEM0650 Wiring Diagram Page 33 Wiring Diagram GEM0650 A/W.
GEM0650/0956/1256 A/W GEM0956 Wiring Diagram Page 34 Wiring Diagram GEM0956 A/W.
GEM0650/0956/1256 A/W GEM1256 Wiring Diagram Page 35 Wiring Diagram GEM1256 A/W.
GEM0650/0956/1256 A/W GEM0655 Wiring Diagram Page 36 Wiring Diagram GEM0655 Air.
GEM0650/0956/1256 A/W Service History Page 37 What to Do Before Calling for Service: ● Check the water supply to the ice machine. The ice machine is de signed to shut off if there is no water to it. Check the water filters if there are any. ● Check the power supply to the ice machine.
An important point after buying a device Ice-O-Matic GEM0956A/W (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ice-O-Matic GEM0956A/W yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ice-O-Matic GEM0956A/W - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ice-O-Matic GEM0956A/W you will learn all the available features of the product, as well as information on its operation. The information that you get Ice-O-Matic GEM0956A/W will certainly help you make a decision on the purchase.
If you already are a holder of Ice-O-Matic GEM0956A/W, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ice-O-Matic GEM0956A/W.
However, one of the most important roles played by the user manual is to help in solving problems with Ice-O-Matic GEM0956A/W. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ice-O-Matic GEM0956A/W along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
