Stoelting F431 Owner's Manual
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Stoelting F431 Owner's Manual

Cab model soft-serve pressurized freezer
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Model F431
OWNER'S MANUAL
Manual No. 513604 Feb. 2005, Rev. 1

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  • Page 1 Model F431 OWNER'S MANUAL Manual No. 513604 Feb. 2005, Rev. 1...
  • Page 3 Need Parts or Service? We stock the parts you need. Our Technicians are factory trained and are certified in the Stoelting Technicare program. CALL Distributor: _________________________ Phone No.: _________________________ Model No.: _______________________ Serial No.: _______________________ Purchase Date: ____________________ Start-Up Date:____________________...
  • Page 5 If problems develop or questions arise in connection with installation, operation or servicing of the freezer, contact the company at the location listed below. STOELTING, LLC 502 Hwy 67 Kiel, WI 53042-1600 STOELTING OWNER'S MANUAL ® MODEL F431 Tele: 920-894-2293 Fax: 920-894-7029...

  • Page 7: Safety Information

    The instructions or warnings they give are not substitutes for proper accident prevention measures. If you need to replace a part, use genuine Stoelting parts with the correct part number or an equivalent part. We strongly recommend that you do not use replacement parts of inferior quality.

  • Page 9: Table Of Contents

    TABLE OF CONTENTS Section 1 ... 1 Description ... 1 Specifications ... 2 Section 2 ... 3 Safety Precautions ... 3 Shipment & Transit ... 4 Freezer Installation ... 4 Installing Permanent Wiring ... 4 Mix Pump ... 5 Section 3 ... 9 Safety Precautions ...
  • Page 10 ILLUSTRATIONS Figure 1 Model F431 Freezer ... 1 Figure 2 Specifications ... 1 Figure 3 Decal Locations ... 3 Figure 4 Auger Rotation ... 4 Figure 5 Mix Hose Installation ... 5 Figure 6 Connections for Standard Mix Container ... 7 Figure 7 Connecting Mix Pickup Assembly ...

  • Page 11: Section 1

    SECTION 1 INTRODUCTION 1.1 DESCRIPTION The Stoelting F431 floor model freezer is pressure 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 non-dairy mixes available, including ice milk, ice cream, yogurt, and frozen dietary desserts.

  • Page 12: Specifications

    1.2 SPECIFICATIONS : h t " 2 : h t ( " " 4 : t h " 7 c r i t i u . T . r i u " 6 " 0...

  • Page 13: Section 2

    MUST NOT EXCEED 220°F NEAR THERMISTOR. HEAT SINK MUST BE USED WHEN BRAZING ON EVAPORATOR OUTLET. CHECK RESISTANCE BEFORE REMOVAL OF THERMISTOR. SEE SERVICE MANUAL. Figure 3. Warning Label Locations Stoelting, LLC Commercial Products 502 Hwy. 67 Kiel, WI 53042...

  • Page 14: Shipment & Transit

    The customer must place claim for damage and/or shortages in ship- ment with the carrier. Stoelting, Inc. cannot make any claims against the carrier. 2.3 FREEZER INSTALLATION...

  • Page 15: Mix Pump

    If Tee is above the pump, mix will drain to the air compressor resulting in pump damage. Mix Pick-up Hose Installation The F431 freezer may be connected to standard mix containers or prepacked mix bags. One, 5 gallon mix bag may be connected to each freezing cylinder or two, 2 1/2 gallon bags may be connected on each side.
  • Page 16 When Using Two Mix Containers or Bag Connection Systems (BCS) on one Side (optional kit #2183189): 1. The F431 can be configured to operate with only one freezing cylinder turned on. This may be done if only one flavor is being dispensed during slow times.

  • Page 17: Figure 6 Connections For Standard Mix Container

    Figure 6. Mix Pump Connections for Standard Mix Container Figure 7. Connecting Mix Pick-up Assembly...

  • Page 18: Figure 8 Connecting Pump Hose To Bcs Manifold

    3-way Tee Low Mix Indicator Adjustment Knobs Figure 8. Connecting Pump Hose to BCS Manifold Figure 9. Completed BCS Hose Assembly Figure 10. Connecting BCS Mix Bags (two bag connection on left, one bag connection on right) Mix Low level Indicator Adjustment The sensitivity of the "Mix Low"...

  • Page 19: Section 3

    3.1 SAFETY PRECAUTIONS SAFE OPERATION IS NO ACCIDENT; observe these rules: Know the freezer. Read and understand the operat- ing instructions. Notice all warning labels on the freezer. Wear proper clothing. Avoid loose fitting garments, and remove watches, rings or jewelry which could cause a serious accident.
  • Page 20 G. Amber Light During the normal operation, the amber light next to the PUSH TO FREEZE switch will illuminate after the freezer has been idle for the preset cycles. Before drawing product, press the PUSH TO FREEZE switch. A horzontal status bar on the LCD display will begin to fill the screen as product freezes down.

  • Page 21: Important Cleaning And Sanitizing Information

    3.3 IMPORTANT INFORMATION REGARDING CLEANING AND SANITIZING Soft serve and shake freezers require special consideration when it comes to food safety and proper cleaning and sanitizing. The following information specifically covers issues for cleaning and sanitizing frozen dessert freezers. This information is meant to supplement a comprehensive food safety program.

  • Page 22: Disassembly Of Freezer Parts

    As a recommended cleaner and sanitizer for your frozen dessert machine, STERA-SHEEN has proven to be one of the best daily maintenance products for: · CLEANING – Thorough removal of all solids including butterfat and milk fat. · MILKSTONE REMOVAL – Complete removal of milkstone.

  • Page 23: Cleaning Disassembled Parts

    Disassembly Of Front Door 1. Remove the front door by turning off the circular knobs and then pulling the front door off the studs. 2. Remove the air bleed valve by unscrewing the knob while holding the valve stem from behind. Remove the compression spring and push air bleed valve through the rear of the front door.

  • Page 24: Cleaning The Freezer

    3.7 CLEANING THE FREEZER CAUTION Risk of Product Damage Do not use acid cleaners, strong caustic compounds or abrasive materials to clean any part of the freezer exterior or plastic parts. The exterior should be kept clean at all times to preserve the lustre of the stainless steel.

  • Page 25: Figure 18 Front Door Assembly

    Assemble O-rings onto the spigot dry, without lubrication. Then apply a thin film of sanitary lubricant to the outside of the O-rings and spigot bodies. Install the spigots through the bottom of the front door ( see Figure 18). Figure 18. Front Door Assembly Assemble the air bleed valve O-ring onto the air bleed valves.

  • Page 26: Sanitizing Assembled Freezer

    3.9 SANITIZING Sanitizing must be done after the freezer is clean and just before the freezer is filled with mix. Sanitizing the night before is not effective. However, you should always clean the freezer and parts after using it. WARNING The United States Department of Agriculture and the Food and Drug Administration require that all cleaning and sanitizing solutions used with...

  • Page 27: Mix Information

    Mix Pump Switches Figure 21. Refrigerated Cabinet Place the mix pump switch in the ON position. The mix pump switch is located in the upper left hand corner, inside the refrigerated cabinet (see Figure 21). Immediately open the spigot and let approxi mately 8 ounces of liquid mix with sanitizing solu tion drain out of the spigot.

  • Page 28: Operation Of Mix Pump

    3.12 OPERATION OF MIX PUMP The mix pump switch is located in the upper left hand corner, inside the refrigerated cabinet. When the pump switch is placed in the ON position, the mix pump motor will be actuated to pump mix into the freezer cylinder. When the set pressure is reached, the mix pump will shut off automatically.

  • Page 29: Figure 24 Removable Parts

    NOTE If the mix lines or air line is difficult to remove, soften with a rag soaked in hot water. Hose connections may be sprayed with Haynes Sanitary Lubricant for ease of removal. Do not loosen or remove the mix pump cover wingnuts.
  • Page 30 THIS PAGE INTENTIONALLY BLANK...

  • Page 31: Section 4

    4.1 PRODUCT CONSISTENCY ADJUSTMENT The freezer's control system monitors the consistency (firmness) of the product (mix) in each freezing cylinder. The program module senses the consistency of the prod- uct and shuts off the drive motor and refrigeration system when the pre-programmed consistency is reached. The control panels on the front of the freezer allow the operator to adjust each freezing cylinder to create the desired product consistency.

  • Page 32: Mix Pump Hose Reposition

    D. The overrun setting is indicated by a pointed pin. E. To adjust overrun, loosen the allenhead screw (located within the center of the adjustment knob) with the 5/32" (4mm) allen wrench provided. Rotate the adjustment knob counterclockwise to a higher number for higher overrun, or clockwise to a lower number for lower overrun.

  • Page 33: Condenser Cleaning (Air Cooled Freezers)

    Program Board High Torque Error Extended Run Time Error Clean Error Freezing Cylinder Sensor (not used on F431 models) Drive Motor Current Cab Sensor High Pressure Cutout Any error causing condition must be corrected, then the power turned off, and back on before the freezer will return...

  • Page 34: Troubleshooting

    If the freezer’s cab is below 34°F (1°C), call your Stoelting Authorized Distributor for assistance in adjusting the freezer cab temperature.
  • Page 35 Main Freezer Power Switch and place the Freezing Cylinder switch to the on position. If the Control Panel still displays the error condition code, call your Authorized Stoelting Distributor for further assistance. ALTERNATING FLASHING CONTROL PANEL LIGHTS...
  • Page 36 The Troubleshooting Tables on the following three pages list the common problems that can occur to the freezer. k " , " t . t f l l i l i s ) . y FREEZER . f f e l l .

  • Page 37: Mix Pump

    . f f . x i . y l . x i . x i e l l . r i . x i " " 2 MIX PUMP l l a . y l o l l " " o l l l l a a l l...
  • Page 38 . y l . y l " s ' r . y t " t " t & & / r i / r i t t i f y l l y l t " t i s t i s / r i s l i t s i...

  • Page 39: Section 5

    HOW TO ORDER REPLACEMENT PARTS 5.1 HOW TO ORDER REPLACEMENT PARTS To assure the receipt of the proper replacement parts, supply your Stoelting Authorized Distributor with the following information: Model number of equipment. Serial number of model (stamped on nameplate) Part number, part name, and quantity needed.
  • Page 40 AUGER PARTS AUGER AND DOOR MISCELLANEOUS PARTS Description Part No. Haynes Spray 12 oz.(340 grams) -------------------- 508017 Petro-Gel Tube 4 oz. (113 grams) -------------------- 508135 Spline Lubricant 2 oz. (57 grams) -------------------- 508048 Brush 4"x 8"x16" (10cm x 20cm x 40,5cm) ------- 208135 Brush 2.5"x 4"x12"...
  • Page 41 MIX PUMP PARTS...
  • Page 42 Wired According to, on elec. schematic envelope 130000 Elec. Schematic Envelope 324065 Water Inlet - Back panel above inlet coupling 324803 Header Panel Decal (Stoelting Logo) 324804 Header Panel Decal (Stoelting Swirl) 324806 Header Panel Decal (A & W Logo)
  • Page 43 Stoelting, LLC warrants to the first user (the “Buyer”) that the freezer cylinders, hoppers, compressors, drive motors, speed reducers, auger and auger flights of Stoelting soft serve / shake freezers will be free from defects in materials and workmanship under normal use and proper maintenance appearing within five (5) years, and that all other...

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