Instruction/ maintenance manual of the product GEM1856 Ice-O-Matic
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Ice-O-Matic 11100 East 45th Ave Denver, Colorado 80239 Part Number 9081350-01 17-3143-01 Date 10/08 SERVICE AND INSTALLATION MANUAL GEM Models: Air and Water Cooled GEM0650, GEM0956, GEM1256, GEM1856 .
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GEM Models A/W Introduction Page i How To Use This Manual Ice-O-Matic provides this manual as an aid to the end user and service technician in installation and maintenance of the Pearl Ice™ Series ice machines. Do not attempt to perform installation, start-up or maintenance unless you have read and fully understand this manual.
GEM Models A/W Table Of Contents Page ii Table of Contents Introduction ................................................................................................................... ............... Page i Table Of Contents.......................
GEM Models A/W Freight Claim Procedure Page iii Important! Inspect Promptly This merchandise has been carefully inspected and packed in accordance with the carrier’s packing specifications. Responsibility for safe delivery has been assumed by the carrier.
GEM Models A/W Warranty Page iv Ice-O-Matic Parts and Labor Domestic & International L imited Warrant y Mile High Equipment LLC (the “Company”) warr ants Ice-O-Matic brand ice machines, ice di.
GEM Models A/W For the Installer Page 1 Installation Guidelines: For proper operation of the Ice-O-Matic ice machine, the following installation guidelines must be followed. Failure to do so may result in loss of production capacity, premature part failures, and may void all warranties.
GEM Models A/W For The Installer Page 2 GEM0650/0655/0956/0955 A/W.
GEM Models A/W For The Installer Page 3 GEM1256A/W.
GEM Models A/W For The Installer Page 4 GEM1856, 1855 Air Note: The GEM1800 seri es is equivalent to two GEM950’s consolidated into one cabinet. Utilize the GEM 950 specification s for service and t.
GEM Models A/W For the Installer Page 5 Bin Application The Pearl Ice™ 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).
GEM Models A/W For the Installer Page 6 Location: Ice-O-Matic ice machines are designed to be installed indoors in a contro lled environment. Install the ice machine in a location where it has enough space around it t o be accessible for service. A minimum of 6 inches must be allowed at the back for air circulation on air cooled models.
GEM Models A/W For the Installer Page 7 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.
GEM Models A/W For the Plumber Page 8 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.
GEM Models A/W For the Electrician Page 9 Electrical Connections: Check the ice machine nameplate (located on the back panel) for the voltage requirements, and minimum circuit ampacity. The ice machine requires a solid chassis to earth ground. Connect the ice machine to its own electrical circuit so it is individually fused.
GEM Models A/W For the Installer Page 10 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 disconnect within sight of the installed machine? _____3.
GEM Models A/W Start Up Page 11 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 wires. 4. Check that no refrigerant lines are rubbing each other.
GEM Models A/W Component Description Page 12 ● 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 will shut the machine off if the discharge pressure e xceeds 450 psig.
GEM Models A/W Component Description Page 13 ● 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.
GEM Models A/W Component Description Page 14 ● Evaporator: A refrigerated vertical tube filled with water and containing a water seal and auger. ● Auger: A solid stainless steel double spiral auger, it pushes the ice crystals up to the top of the evaporator.
GEM Models A/W Electrical Sequence Page 15 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.
GEM Models A/W Operation: Water Page 16 Water enters the machine through the 3/8 inch male flare at the rear of the cabinet, goes to the water reservoir which it enters through the float valve. The water then goes out the botto m of the reservoir tank to the bottom of the evaporator.
GEM Models A/W Operation: Performance Page 17 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.
GEM Models A/W Sanitizing and Cleaning Page 18 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 require occa sional cleaning of their water systems with a specifically designed chemical.
GEM Models A/W Bearing Maintenance Page 19 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 3. Removing the water shed and unscrewing the breaker cover.
GEM Models A/W Sensor Maintenance Page 20 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.
GEM Models A/W Maintenance: Air Cooled Page 21 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.
GEM Models A/W Auger Maintenance Page 22 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 co ated with these minerals, requiring a more frequent removal than twice per year.
GEM Models A/W Service Diagnosis Page 23 Symptom Possible Cause Probable Correction No ice is made nothing operates. •Unit off due to no power •Restore Power •Unit off due to master switch in OFF •Switch master Switch to ON position •Unit off due to low water level •Check water supply, filter s t r a i n e r , f l o a t v a l v e .
GEM Models A/W Service Diagnosis Page 24 Symptom Possible Cause Probable Correction Unit makes ice, but very slowly •High dischar ge pressure beca use •Clean filter and condenser. of a dirty condenser. •Low capacity because the auger and •Clean the water system.
GEM Models A/W Control System Diagnostics Page 25 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.
GEM Models A/W R&R- Water Reservoir, Bin Control Page 26 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. 5. To remove float valve, push in “locking tabs” as shown and pull float up.
GEM Models A/W R&R-Bearing and Breaker Page 27 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. 3. Push back bail clamp and remove ice chute cover.
GEM Models A/W R&R-Auger Page 28 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.
GEM Models A/W R&R-Water Seal Page 29 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.
GEM Models A/W R&R-Evaporator Page 30 To Replace the Evaporator: (Assuming all steps for removal of the thrust be aring, breaker, auger and water seal have been performed). 1. Recover the refrigerant from the ice machine. 2. Unsweat the refrigerant connections: a.
GEM Models A/W R&R-Gear Motor 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.
GEM Models A/W R&R-Fan Blade and Motor Page 32 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.
GEM Models A/W Refrigeration System Service Page 33 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 liquid line drier is re quired.
GEM Models A/W Wiring Diagram Page 34 Wiring Diagram GEM0650 A/W.
GEM Models A/W Wiring Diagram Page 35 Wiring Diagram GEM0956 A/W, GEM1256A/W.
GEM Models A/W Wiring Diagram Page 36 Wiring Diagram GEM0655 A/W, GEM0955 A/W.
GEM Models A/W Wiring Diagram Page 37 Wiring Diagram GEM1856 Air.
GEM Models A/W Wiring Diagram Page 38 Wiring Diagram GEM1855 Air.
GEM Models A/W Service History Page 39 What to Do Before Calling for Service: ● Check the water supply to the ice machine. The ice machine is design ed 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 GEM1856 (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 GEM1856 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 GEM1856 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ice-O-Matic GEM1856 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 GEM1856 will certainly help you make a decision on the purchase.
If you already are a holder of Ice-O-Matic GEM1856, 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 GEM1856.
However, one of the most important roles played by the user manual is to help in solving problems with Ice-O-Matic GEM1856. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ice-O-Matic GEM1856 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
