2 - 3 Installation ................................................................................................................. 4 - 6 Operation and Adjustments ...................................................................................... 6 - 7 Care & Cleaning ........................................................................................................... 8 - 11 Maintenance ................................................................................................................. 11 - 13 Troubleshooting ............................................................................................................ 14 Key Parts Identification ................................................................................................ 15 Assembly Diagrams ......................................................................................................... 16 - 21 Wiring Diagrams ............................................................................................................. 22 - 27 Refrigeration Diagrams .................................................................................................. 29 - 30 Information contained within this manual is subject to change without notice. Contact Grindmaster Corporation’s Customer/Technical Service Department at 1-800-695-4500 with any questions or for clarification. Model 3312 Page 1 OPERATOR’S SAFETY PRECAUTIONS IMPORTANT: Failure to comply with the following safety precautions may result in severe personal injury or damage to the machine. 1. Read and understand the operating instructions in this manual thoroughly. Only allow properly trained persons to operate this machine. 2. Note all warning labels on the freezer. If any warning labels are missing or damaged replace them immediately. 3. Do not wear loose fitting garments or jewelry which could cause a serious accident. 4. Stay alert at all times during operation. 5. Keep operating area clean. 6. Do not attempt any repairs unless the main power supply to the freezer has been disconnected. Contact Grindmaster Technical Service for service assistance. 7. Do not put objects or fingers in the dispense plunger. 8. Do not operate freezer if any excessive noise or vibration occurs. Contact your authorized service agent. 9. Be certain machine is installed with adequate space for proper air circulation. (See installation section.) Failure to provide sufficient ventilation will reduce freezer performance and void equipment warranty. Located on the right, left and rear panels. (part # W0600218) FREEZER APPLICATION AND SPECIFICATIONS Model 3312 The freezer consists of two freezing cylinders with rotating internal augers (dashers) that are belt-driven by electric motors. The augers scrape frozen product off of the inside of the refrigerated cylinders. Torque sensing mechanisms control compressor operation to maintain desired product consistency. The freezer utilizes an air-cooled refrigeration system to freeze the product. Self-closing dispensing valves are attached to the front of the freezing cylinder. The unit has an adjustable consistency control and an out of product indicator for each side. When properly operated and cared for, the Model 3312 will provide many years of service. Proper care includes regular cleaning and maintenance. To minimize the amount of maintenance necessary, follow the operating procedures outlined in this manual. Product Tips The Model 3312 was designed to dispense a wide variety of frozen beverages including frozen fruit juice, frozen lemonade, slush and frozen cocktails. These products can be served in consistencies ranging from thin to fairly thick. Two types of dispensing valve plungers and product consistency springs are available depending on the thickness of the product being served. These parts are interchangeable depending upon your needs. One plunger, part W0480438 has one horizontal outlet slot and is used to serve thin to medium products such as frozen lemonade and slush. The other plunger, part W0480451 has two horizontal outlet slots and is used to serve thicker product such as neutral base frozen cocktails. A red spring, part W0631239, is used on the drive motor to adjust product consistency to serve thin to medium products. The yellow spring, part W0631238, is used for thicker product. The spring is located next to the drive motor behind the right hand side panel. Over an extended period of time, some products, such as frozen cocktails that contain alcohol, have a tendency to separate, or stratify. Separation of product on the mix storage hopper can result in frozen product quality inconsistency. Simply keeping the product, in the mix storage hopper, stirred on a regular basis will eliminate this problem. Page 2 Model 3312 Product Tips (cont.) Some cappuccino or latte mixes contain dairy products which can spoil if not refrigerated. If the freezer is to be turned off at night these products must be removed from the freezer. Contac...