Model 4231G/H OWNER'S MANUAL Manual No. 513534 Apr. 2003, Rev.
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STOELTING OWNER'S MANUAL FOR MODEL 4231G STOELTING FLOOR GRAVITY FREEZER SOFT-SERVE This manual provides basic information about the freezer. Instructions and suggestions are given covering its operation and care. The illustrations and specifications are not binding in detail. We reserve the right to make changes at any time without notice to the freezer without incurring any obligation to modify or provide new parts for freezers built prior to date of change.
TABLE OF CONTENTS Section Description Page 1 1.1 1.2 INTRODUCTION ................................................................................................. 1 Description ........................................................................................................... 1 Specifications ....................................................................................................... 2 2 2.1 2.2 2.3 2.4 OPERATING INSTRUCTIONS ........................................................
LIST OF ILLUSTRATIONS Figure Description Page 1 Model 4231G Freezer ....................................................................................................... 1 2 Specifications .................................................................................................................... 1 3 Warning and Label Locations ............................................................................................ 3 4 Space and Ventilation Requirements ..............................
SECTION 1 INTRODUCTION 1.1 DESCRIPTION The Stoelting® 4231G freezer is gravity fed. The freezer is equipped with fully automatic controls to provide a uniform product. The freezer is designed to operate with almost any type of commercial soft serve or nondairy mixes available, including ice milk, ice cream, yogurt, and frozen dietary desserts.
1.2 SPECIFICATIONS MODEL 4231G FLOOR MODEL GRAVITY FREEZER DIMENSIONS Freezer: 25.90” (65.81 cm) wide x 30.20” (76.7 cm) deep x 60.80” (154.4 cm) high Crated: 38.00” (96.5 cm) wide x 64.00” (162.5 cm) deep x 70.00” (178.0 cm) high WEIGHT Freezer: 640 lbs. (291 kg) Crated: 815 lbs. (370 kg) ELECTRICAL Refer to the nameplate located on the rear of the Freezer. COOLING Air-cooled requires 3” (7.6 cm) clearance for all louvered panels.
SECTION 2 INSTALLATION INSTRUCTIONS 2.1 Labels should be checked periodically to be sure they can be recognized as warning labels. SAFETY PRECAUTIONS Do not attempt to operate the freezer until the safety precautions and operating instructions in this manual are read completely and are thoroughly understood.
2.2 NOTE SHIPMENT AND TRANSIT For Air Cooled Unit Only. The freezer has been assembled, operated and inspected at the factory. Upon arrival at the final destination, the freezer must be checked for any damage that may have occurred during transit. A rear block-off panel has been provided to prevent recirculation of hot air beneath the freezer. The rear block-off panel maximizes the efficiency of the freezer. See the illustration for the installation instructions.
C. For location of proper electrical connections, refer to Figure 7. Figure 5. Leveling Freezer Figure 7. Connecting Permanent Wiring C. Accurate leveling is necessary for correct drainage of freezer barrel to insure correct over-run and flow. Place a spirit level on top of the freezer at each corner to check for level condition (Fig. 5). If adjustment is necessary, level the freezer by turning the casters in or out (Fig. 6). NOTE When supply voltage is less than 218V, reconnect transformer.
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SECTION 3 INITIAL SET-UP AND OPERATION 3.1 F. Disconnect electrical cord for maintenance. Never attempt to repair or perform maintenance on the freezer until the main electrical power has been disconnected. OPERATOR’S SAFETY PRECAUTIONS SAFE OPERATION IS NO ACCIDENT; Observe these rules: A. Know the freezer. Read and understand the Operating Instructions. G. Do not operate under unsafe operating conditions. Never operate the freezer if unusual or excessive noise or vibration occurs. 3.
A. SPIGOT SWITCH NOTE If the freezer shuts off and the PUSH TO FREEZE light flashes, you have an error condition. Turn the CLEAN-OFF-SERVE switch to the OFF position, correct the problem and turn the freezer back on. When the spigot handle is opened the SPIGOT switch will start the auger drive motor and refrigeration systems. When the spigot handle is closed, the auger drive motor and compressor will remain on until the product in the barrel reaches the proper consistency. GREEN LIGHT B.
3.3 B. Prepare 2 gallons (7.5 liters) of sanitizing solution following manufacturer’s instructions. Pour into hopper with mix inlet regulator in place (Fig. 11). SANITIZING Sanitizing must be done after the freezer is clean and just before the hopper is filled with mix. Sanitizing the night before is not effective. However, you should always clean the freezer and parts after using it.
E. After five minutes, place the bucket under the spigots and open all three spigots to drain the sanitizing solution. When the solution has drained, place the CLEAN-OFF-SERVE switch in the OFF position. Allow the freezer barrel to drain completely (Fig. 14). CAUTION DO NOT OVERFILL THE HOPPER. MIX LEVEL MUST NOT BE HIGHER THAN 2” (5CM) FROM THE TOP OF THE AIR INLET TUBE ON THE MIX INLET REGULATOR. E. The freezer barrel will automatically fill until it is about ½ full (about 3 min.
Mix does not improve with age. Old mix, or mix that has been stored at too high a temperature, can result in a finished product that is less than satisfactory from the appearance and taste standpoint. To retard bacteria growth in dairy based mixes; the best storage temperature range is between 36° to 40°F (2.2° to 4.4°C). I. The freezer is designed to dispense the product at a reasonable draw rate. If the freezer is overdrawn, the result is a soft product or a product the will not dispense at all.
B. Place the CLEAN-OFF-SERVE rocker switch in the CLEAN position. Allow the mix to agitate in freezer barrel until the mix has become a liquid. E. Repeat steps A through D using a mild detergent solution. 3.8 C. Drain the liquid mix by opening the spigot. A bucket or container should be placed under the spigot to catch the liquid mix (Fig. 19). DISASSEMBLY OF FREEZER PARTS CAUTION PLACE THE CLEAN-OFF-SERVE ROCKER SWITCHES IN THE OFF POSITION BEFORE DISASSEMBLING FOR CLEANING OR SERVICING.
E. Remove the auger assemblies from the freezer. Pull the augers out of the freezer barrel slowly. As the augers are being pulled out, carefully remove each of the plastic flights with springs (Fig. 24). Figure 21. Removing Front Door C. Remove rosette cap. Push the spigot body through the bottom of the front door and remove the spigot body (Fig. 22). Figure 24. Auger Shafts F. Keep the rear of the auger shafts tipped up once they are clear of the freezer barrels to avoid dropping rear seals. G.
J. Remove drain trays. 3.9 B. Place all parts in the sanitizing solution, then remove and let air dry. CLEANING THE FREEZER PARTS C. Using this sanitizing solution and the large barrel brush provided, sanitize the rear of the barrel and drive area by dipping the brush in the sanitizing solution and brushing the rear of the barrel. Place all loose parts in a pan or container and take to the wash sink for cleaning. To clean freezer parts refer to the following steps: 3.11 A.
Figure 27. Exploded View of Auger CAUTION DO NOT PLACE THE MIX INLET REGULATOR INTO THE HOPPER BEFORE INSTALLING THE AUGER. E. Install the two plastic flights onto rear of the auger and insert part way into freezer barrel. F. Install the remaining plastic flights, push the auger into the freezer barrel and rotate slowly until the auger engages the drive shaft. G. Install the auger support and bearing into the front of the augers with one leg of the support at 9 o’clock. Figure 28.
Figure 29. Installing Mix Inlet Regulators NOTE Refer to Section 3.3 for sanitizing the assembled freezer before filling with mix. Figure 30. Drain Trays 3.12 ROUTINE CLEANING L. Install the drain trays (Fig. 30). CAUTION To remove spilled or dried mix for the freezer exterior, simply wash in the direction of the finish with warm soapy water and wipe dry. Do not use highly abrasive materials, as they will mar the finish.
SECTION 4 MAINTENANCE INSTRUCTIONS 4.1 3. PREVENTIVE MAINTENANCE Run a sanitized brush down mix inlet regulator (carburetor) tubes (Fig. 32). It is recommended that a preventive maintenance schedule be followed to keep the freezer clean and operating properly. The following steps are suggested as a preventive maintenance guide. WARNING NEVER ATTEMPT TO REPAIR OR PERFORM MAINTENANCE ON FREEZER UNTIL THE MAIN ELECTRICAL POWER HAS BEEN DISCONNECTED. Figure 32.
C. MONTHLY 1. D. Blow out the dirt from the back of the condenser. Most of the dirt will cling to the wet towel. Check drive belt for wear. CAUTION 2. 4.2 Check condenser for dirt. THIS PROCEDURE EMITS A LOUD NOISE. FREEZE-UP E. An alternative method is to clean with a condenser brush and vacuum. If a freeze-up does occur, use the following steps to thaw the mix in the freezer barrel: 4.
4.5 TROUBLESHOOTING WARNING NEVER ATTEMPT TO REPAIR OR PERFORM MAINTENANCE ON FREEZER UNTIL THE MAIN ELECTRICAL POWER HAS BEEN DISCONNECTED. Problem Freezer does not run Possible Cause Remedy 1. Power to freezer is off. 1. Supply power to freezer 2. Fuse or circuit breaker is blown or tripped. 2. Replace or reset. (If condition continues See note 1 or 2) 3. Freeze-up 3. See paragraph 4.3. 4. High-pressure cutout tripped 4. Correct problem and reset. 5. Drive motor OFF ON Timer. 5.
Low overrun 1. Mix inlet regulator (carburetor) missing. 1. Replace mix inlet regulator (carburetor). 2. Mix inlet regulator (carburetor) “O” Ring 2. Replace mix inlet regulator missing. (carburetor) “O” Ring. 3. Mix inlet regulator (carburetor) air tube 3. Clean with sanitizer brush. blocked. Front door leaks. 1. Front door knobs are loose. 2. Spigot parts are not lubricated. 3. Chipped or worn spigot “O” Rings. 4. “O” Rings or spigot installed wrong. 5. Spigot hole in front door nicked or scratched.
SECTION 5 REPLACEMENT PARTS 5.1 B. Remove the faulty lamp by pulling out the lamp puller (See Fig. 33). HOW TO ORDER PARTS To assure receipt of the proper replacement parts, supply your dealer or distributor with the following information: A. Model number of equipment. B. Serial number of model, stamped on nameplate.
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23 Stoelting PN 2177428 3159696 3158086 624598 624664 625133 508135 482019 624614 482004 644094 4158215 2158260 570961 428045 2158082 1158080 647995 718773 647055 538235 766917 696048 696044 694247 1145194 1146231 1150832 1150807 232734 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 23 24 25 25A 25B 25C 26 3 2 2 2 2 3 1 2 8 8 8 4 3 3 3 3 3 3 3 6 3 2 4 As Reqd 2 1 4 1 2 1 Qty Rosette Cap Mix Inlet Reg. (5/16" Hole, Ext. Length) Mix Inlet Reg.
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27 Condenser (W/C Only) Screw Cap 5/16-18 x 3/4 (W/C Only) Nut Hex 5/16-18 Locking (W/C Only) Washer Lock 5/16 (W/C Only) Condenser Joining Bracket (W/C Only) Washer Flat 1/4 x 3/4 x 5/16 (W/C Only) 2 8 2 6 1 6 284104 644307 538351 766073 2172762 767205 2172761 644024 766941 2172763 538335 766456 647393 766933 644106 522833 3171824 4154716 162067 284044 538280 766948 538297 649000-37 732133 524075 524074 221637 766566 1145141 538344 1150893 649109 538395 538360 538356 231083 231082 2 4 4 2 4 4 4 4 4 2 2
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29 Screw Tap 10-16 x 1/2 Ind. Hx Mount Adhesive Back 1 x 1 Plastic Screw Mach 1/4-20 x 1/2 Trs Hd Nut Speed 1/4-20 Washer Shakeproof 1/4 Zinc Screw Cap 1/4-20 x 2 Hx Hd Spacer, 1.
7 1, 2A, 2B 3 . 12, 13, 14 , 16 2 6 3 . 1 7 . 4A , 15 11 10 .9 08 8 7 011 0 10 9 , 15 . 4A 06 7 3 16 5 , 12, 13, 14 1, 2A, 2B . 0 0 0 0 12, 13, 14 2 0 30 /7 12, 13, 14 .
31 Stoelting PN 282021-SV 282020-SV 282030 4172774 284104 284044 718686 342008 762277 762445 342020 458010 763455 375813 282085 762359 231101-SV 1158278 Item 1 2A 2B 3 4 4A 5 6 7 8 9 10 11 12 13 14 15 16 2 2 6 6 6 2 2 2 2 2 2 2 1 2 1 2 2 2 Qty Valve, EPR Capillary Tube Valve Core Cap Quick Seal Access Fitting Assembly Valve Solenoid Indicator, Sight Glass Drier Refrigeration Expansion Valve Check Valve (Magni-Chek) Drier, Filter Switch Pressure (W/C Only) Condenser (A/C Onl
7 1, 2A, 2B 3 . 12, 13, 14 , 16 2 6 . 5 4 3 1 1 7 , 15 11 10 .9 08 17 8 7 . 17 011 0 10 9 , 15 .4 3 6 5 2 . 7 16 5 , 12, 13, 14 1, 2A, 2B . 2 0 0 0 0 12, 13, 14 2 0 32 6 /7 12, 13, 14 .
33 763455 375813 282085 762359 231101-SV 1158278 11 12 13 14 15 16 342008 6 458010 718686 5 10 284044 4A 342020 284104 4 9 4172774 3 762445 282030 2B 8 282020-SV 2A 762277 282021-SV 1 7 Stoelting PN Item 6 6 6 2 2 2 2 2 2 2 1 2 1 2 2 2 Qty 2 2 Valve, EPR Capillary Tube Valve Core Cap Quick Seal Access Fitting Assembly Valve Solenoid Indicator, Sight Glass Drier Refrigeration Expansion Valve Check Valve (Magni-Chek) Drier, Filter Switch Pressure (W/C
WARRANTY SOFT SERVE / SHAKE FREEZERS 1.
