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Crathco® Visual Granita Machine
Operation and Instruction Manual
for
G & MG Series Models
TABLE OF CONTENTS
Introduction and W arnings......................................2
Installation............................................................2-3
Connection To Power Supply..................................3
Preparing Product ..................................................4
Operating Panel......................................................4
Programming - G Series Electronic
Touchpad M
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Introduction and Warnings This instruction manual is an important part of this Granita machine and must be kept for future reference. Carefully read the warnings contained in this instruction manual before installing and operating this Granita machine. Instructions For Machine Transport NOTE: Refrigeration equipment must remain upright to avoid damage to the compressor In order to prevent the oil contained in the compressor from flowing into the cooling circuit, it is necessary to always ship,
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Installation (cont.) 4.) Installing the Top Lid Merchandiser (requires Phillips head screwdriver) • Unplug the cord to the lid and remove the lid from the machine. • On top of the cover, remove the 4 hole plugs over the front (2) screws, middle (near rocker switch) and back screws then remove these 4 screws with a Phillips head screwdriver. Remove the black top part of the cover (Figure E) from the clear plastic base. (see fig. E) • Slide the merchandiser header around the outside edge of th
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Preparing Product ! Attention: Make sure that the mixture has a 13% minimum Brix (sugar content). A lower concentrate could seriously damage the mixing parts, as well as the gear motors. NEVER USE ONLY WATER. 1.) If using product concentrate (instead of ready-to-use product), dilute and mix the prod- (Figure I) uct with water, according to the directions given by the manufacturer, in a separate container (see fig. I). Never pour dry powder, crystals, or concentrate into a dry bowl. 2.) Slide th
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Model G23-2B Electronic Touchpad (cont.): Auger ON/OFF Button: 1.) Turns auger ON and OFF when main power switch is ON. 2.) Must be ON to permit defrost time to be reset. 3.) Must be ON to activate the “Mode/Press To Select Function” button to select manual “OFF”, “FREEZE” or “COOLING” functions. Mode/Press To Select Function Button: 1.) Used to manually select “OFF”, FREEZE” or “COOLING” functions when auger is turned ON. 2.) Accesses defrost timer reset mode when depressed for an extended peri
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Setting Defrost Timer (Night Setting) (cont.): 5.) Then press the “Auto Timer” clock button to set the minutes to complete time setting that you want it to turn to refrigeration mode, (defrost mode). Then press the “Press To Select Function” button to save the setting. 6.) Proceed to setting the time you want the machine to turn to freezing mode by following steps 4 and above. Then press the “Press To Select Function” button to save the time settings for freeze mode. Freeze light should be blink
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G SERIES MODELS - ERROR MESSAGES (CONT.) 2.) “SYSTEM OVER TEMPERATURE” ALARM • A system over temperature alarm will activate as a safety when the unit has overheated to protect the compressor. • The system automatically goes to “OFF” status where the compressor’s operations is stopped, while augers will keep working to avoid forming ice blocks. • When this occurs an “Err” message will appear on the touch pad LED readout accompanied by a continu- ous buzzer sound to alert the operator of this con
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Dispensing Product To dispense the product, position the cup under the dispensing valve (C) and lower the dispensing lever (B) (see fig. O). ! Attention: If the machine is turned off at night, with the bowls filled, or just partially filled, a layer of solid ice may form on the surface due to the natural separation of the unmixed (non-moving) product. In this case, before turning the machine back on, remove the layer of superficial ice to prevent damage to the mixing auger. (Figure O) Adjustme
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Cleaning and Sanitizing Procedures ! Warning Disconnect the unit from its power supply prior to cleaning or sanitizing the unit. Failure to do so may result in electric shock. Daily Cleaning (Figure R) For the machine to function properly, it is important that the cleaning procedures be carried out daily, according to the following instructions: 1.) Turn off the / (G, fig. M) refrigeration and / (F, fig. M) freezing switches and empty the bowl of its remaining product; af
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Cleaning and Sanitizing Procedures (con’t) 10.) Reassemble the mixing unit back together, according to the following procedures (see fig. Y): • Moisten the bowl seal (P) with water and slip it into place at the back of cylin- der with ribs angled toward back of freezer. (Figure Y) • Apply food grade lubricant to the inside of the shaft seal (O) and put the shaft seal (O) back on with the flared end of seal toward back of freezer. • Put the auger assembly (N) back on the evaporator. • Secure a
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Cleaning and Sanitizing Procedures (con’t) 16.) Plug the unit back into appropriate power supply. 17.) After the cleaning and reassembly of the mixing parts and bowl as per above instructions, fill the bowl with a mix of water and an approved cleaning solution (example kay5), according to the measures specified. 18.) Start the mixing part of the machine for about 10 minutes to sanitize all parts. Follow the cleaning solution specifications. 19.) Drain the cleaning solution as follows: • Unscrew
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Maintenance (con’t) Cleaning the Condenser (Monthly) This cleaning should be done monthly or more often if necessary. In order to guarantee an efficient refrigerating system, it is essential that the condenser be properly cleaned at regular intervals, according to the following procedures: (Figure HH) • Unplug the machine. • Remove the back panel and filter. Using a dry brush or vacuum, remove the dust that has accumulated between the fins of the condenser (see fig HH). Replacing the Lightbulbs
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Maintenance (con’t) Seal Maintenance Bell Shaped Seal • Replace every 1 to 6 months depending on conditions of use and level of maintenance and lubrication. This part should be lubricated during re-assembly after every cleaning. Spindle Bushing Seal • Replace every 6 to 12 months depending on conditions of use and level of maintenance. Replacement of spindle bushing should ONLY be done by a qualified service technician. To Replace Spindle Bushing: Tools required: Power screwdriver, Rubber malle
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Model # ___________________________ Crathco Granita Preventive Serial # ____________________________ Maintenance (PM) Date: ______________________________ Checklist for Kit 90566 - PM by _____________________________ Serial # 11259 and above Of Company ________________________ (and units with lower serial #’s that have been Store Name/# _______________________ converted to stainless steel shafts - units with Address ___________________________ black stainless shafts will need to be converted _
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Model # ___________________________ Crathco Granita Preventive Serial # ____________________________ Maintenance (PM) Date: ______________________________ Checklist for Kit 90104 - PM by _____________________________ Serial # 11258 and below* Of Company ________________________ (If unit has been converted to unhardened Store Name/# ______________________ stainless shaft system, then use kit #90566 Address ___________________________ instead. ) __________________________________ Store Mgr Name
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Accessories (not included) Security Kit Installation (Part # 3468) PULL HANDLE Installing Locking Clip LOCKING CLIP HOLE FOR 1. Pinhead must be located on righthand side of valve, PADLOCK as shown. 2. The 0.125” slot, on the locking clip, lines up with HORIZONTAL the horizontal shelf on the valve body. SHELF VALVE BODY 3. Insert the locking clips as shown. 0.125” SLOT PIN HEAD LOCKING CLIP IN 4. Attach padlock in hole provided on the locking clip. LOCK POSITION (Figure PP) Installing Securit
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Troubleshooting Guide The following procedures must be performed by a qualified service technician. Problem Possible Cause Solution The machine does not cool, or cools • The space around the machine is • Allow at least 8” (20cm) between the inadequate for ventilation machine and anything next to it; keep only partially, but the compressors are running away from heat sources • Freezer is in defrost • Return to freeze mode • The condenser fins are clogged with • Remove the side panels. Using a ai
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Troubleshooting Guide (cont’d) Problem Possible Cause Solution Product is leaking from the • Reassemble and replace • The dispensing valve has been incom- dispensing valve pletely or incorrectly replaced in its position • Clean and lubricate the valve and • The free movement of the dispensing valve cylinder with the lubricant pro- valve is impeded vided with the machine • Dispensing valve o-rings are damaged • Replace the o-rings Product is flowing into drain tray • The bell shaped “shaft” seal
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Exploded View MG23-2B (115/60) (for units up to serial number 8195) G & MG Series Granita Machine Page 19
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Exploded View G23-2B (115/60) (for units up to serial number 8195) Page 20 G & MG Series Granita Machine
