Model E157A / E257A
SERVICE MANUAL
Manual No. 513652 Rev.0
This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care.
The illustrations and specifi cations are not binding in detail. We reserve the right to make
changes to the machine without notice, and without incurring any obligation to modify or provide new parts for machines built prior to date of change.
DO NOT ATTEMPT to operate the machine until instructions and safety precautions in this
manual are read completely and are thoroughly understood. If problems develop or questions
arise in connection with installation, operation, or servicing of the machine, contact Stoelting.
stoeltingfoodservice.com
Stoelting Foodservice Equipment
502 Highway 67
Kiel, WI 53042-1600
U.S.A.
Main Tel: 800.558.5807
Fax: 920.894.7029
Customer Service: 888.429.5920
Fax: 800.545.0662
Email: foodservice@stoelting.com
© 2014 PW Stoelting, LLC
A Few Words About Safety
Safety Information
Read and understand the entire manual before
operating or maintaining Stoelting equipment.
This manual provides the operator with information
for the safe operation and maintenance of Stoelting
equipment. As with any machine, there are hazards
associated with their operation. For this reason safety
is emphasized throughout the manual. To highlight
specifi c safety information, the following safety defi ni-
tions are provided to assist the reader.
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and
their explanations, deserve your careful attention
and understanding. The safety warnings do not by
themselves eliminate any danger. 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.
Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious personal injury. The message that follows the symbol
contains important information about safety.
Signal Word:
Signal words are distinctive words used throughout
this manual that alert the reader to the existence and
relative degree of a hazard.
WARNING
The signal word “WARNING” indicates a potentially
hazardous situation, which, if not avoided, may result
in death or serious injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” indicates a potentially
hazardous situation, which, if not avoided, may result
in minor or moderate injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” not preceded by the
safety alert symbol indicates a potentially hazardous
situation, which, if not avoided, may result in equipment/property damage.
NOTE (or NOTICE)
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety of personnel or equipment/property.
TABLE OF
CONTENTS
Section Description Page
1 Description And Specifi cations
1.1 Description .................................................................................................. 1
1.2 Specifi cations ............................................................................................. 2
1.3 Component Settings ................................................................................... 4
2 Refrigeration Diagram and Wiring Diagrams
2.1 Refrigeration Diagram ................................................................................5
2.2 Wiring Diagram ........................................................................................... 6
3 Replacement Parts
3.1 Brushes, Decals, Lubrication and Miscellaneous ....................................... 9
3.2 Bottles, Dispenser and Lids ........................................................................ 9
3.3 E157 Parts .................................................................................................. 10
3.4 E257 Parts .................................................................................................. 12
3.5 Spigots ........................................................................................................ 14
3.6 Panels and Screws ..................................................................................... 14
3.7 Pump Parts (WFE257A) ............................................................................. 15
SECTION 1
DESCRIPTION AND SPECIFICATIONS
1.1 DESCRIPTION
The E157A and E257A are gravity fed slush machines.
They are equipped with fully automatic controls to
provide a uniform product. The machines are designed to
operate with most neutral bases and concentrated fl avors.
Figure 1-1 Model E257A
Service Manual #513652 1 E157A/E257A Model Machines
1.2 SPECIFICATIONS
Model E157A (LE157A) Model E257A (LE257A)
Dimensions Machine with crate Machine with crate
width 15’’ (38,1 cm) 28’’ (71,1 cm) 15’’ (38,1 cm) 17’’ (43,2 cm)
height 32’’ (81,3 cm) 40-1/4’’ (102,2 cm) 58’’ (147,3 cm) 66’’ (167,6 cm)
depth 29-1/2’’ (74,9 cm) 35-1/2’’ (90,2 cm) 15’’ (38,1 cm) 21’’ (53,3 cm)
Weight 142 lbs (64,4 kg) 200 lbs (90,7 kg) 140 lbs (63,5 kg) 165 lbs (74,8 kg)
Electrical 1 Phase, 115 VAC, 60Hz
running amps 9A
connection type NEMA5-15P included
International Option 1 Phase, 220-240 VAC, 50Hz
Compressor 2,250 Btu/hr (R-404A)
Drive Motor 1/12 hp
Cooling Air cooled units require 6” (15,2 cm) air space an sides and back
Hopper Volume 10 gallon (37,85 liters)
E157A E257A
Refrigerant R-404A R-404A
Charge 20 oz 20 oz
Suction Pressure
(AXV)
Discharge Pressure 215 psig 215 psig
47-49 psig 47-49 psig
E157A E257A
Torque Control
Spring Length
Torque Control
Timer Delay
Brix 11-13% 11-13%
3-1/8” 3-1/8”
71-81 sec 71-81 sec
Service Manual #513652 2 E157A/E257A Model Machines
1.3 COMPONENT SETTINGS
Following are the settings for the components in the
E157A and E257A machines.
A. COMPRESSOR WINDINGS
When testing the compressor windings the resistance
through the windings should be as follows:
Compressor Electrical S to C R to C
282104 1 PH 31.70Ω 5.18Ω
B. CAPACITORS
Refer to the following table for the capacitance of all the
capacitors in the machine:
Rating
Capacitor Part MFD VAC
Compressor - Start 230624 270-324 MFD 165 VAC
Compressor - Start 230659 53-65 MFD 330 VAC
Motor 230650 4.5 MFD 250 VAC
Motor - Run 231062 4 MFD 370 VAC
Service Manual #513652 3 E157A/E257A Model Machines
Service Manual #513652 4 E157A/E257A Model Machines
REFRIGERATION DIAGRAM AND WIRING DIAGRAMS
2.1 REFRIGERATION DIAGRAM
SECTION 2
Service Manual #513652 5 E157A/E257A Model Machines
2.2 WIRING DIAGRAM
Service Manual #513652 6 E157A/E257A Model Machines
Service Manual #513652 7 E157A/E257A Model Machines
Service Manual #513652 8 E157A/E257A Model Machines
SECTION 3
REPLACEMENT PARTS
3.1 BRUSHES, DECALS, LUBRICATION AND MISCELLANEOUS
Part Description Quantity
208049 Brush - 1-1/2" X 4" X 30" 1
236014 Card - Cleaning Instruction 1
324088 Decal - Pressure Reference Chart
324105 Decal - Caution Electrical Shock
324107 Decal - Caution Hazardous Moving Parts
324113 Decal - Caution Grounded Plug
324135 Decal - Toggle & Reset Switch
324200 Decal - High Pressure Cut-Out
324393 Decal - Stoelting Swirl Logo (Floor)
324566 Decal - Wired According To (Floor)
324584 Decal - Adequate Ventilation 3" (E257)
324649 Decal - Adequate Ventilation (E157)
324804 Decal - Domed Stoelting Swirl (Header Panel)
431003 Wire Harness w/15A Plug
508135 Petrol Gel - 4 oz Tube 1
513651 Manual - Owner’s 1
679066 Gasket - Freezer Base (Counter Model)
3.2 BOTTLES, DISPENSER AND LIDS
Part Description Quantity
194019 Bottle - Flavor (Glass)
194024 Bottle - Flavor (Plastic)
332003 Dispenser - Cup (ADJ20) (6-14 oz Cups)
332003-01 Lid (ADJ20 Cup Dispenser)
332003-02 Dispenser Mount (Freezer)
332003-03 Dispenser Mount (Dispenser)
332003-04 Dispenser Wing Nut & Stud Kit
332004 Dispenser - Cup (ADJ30) (12-24 oz Cups)
332004-01 Lid (ADJ30 Cup Dispenser)
332006 Dispenser - Lid
600058 Pump - Flavor (Glass Bottle)
600082 Pump - Flavor (Plastic Bottle)
2123128 Bracket (Third Dispenser)
Service Manual #513652 9 E157A/E257A Model Machines
3.3 E157 PARTS
314217
232086
5276
5309-12
2121522
767519
624715-5
754107
2119012
314216
624737-5
4111592
2159570
3113940
3159478
1127494
3159479
618164
282022
3158351
1147895
762410
284010
4109212-SV
221164
2171810
744273
718561
202002
423013
417006
4172883
696130
522231
718686
3159569
739533
2149396
571016
3146277-02
766539
625456
1171812
200037
1133960
162070
2159683
2149065
695783
522833
718149
294482-T
294485
2183658
Service Manual #513652 10 E157A/E257A Model Machines
3.3 E157 PARTS (CONTINUED)
Part Number Description Quantity
5276 Sealer Ring (Stainless Steel)
5309-12 Wing Nut
162070 Blade - Fan (Air-Cooled Condenser)
200037 Bracket - Motor Mounting
202002 Switch - Reset (Circuit Breaker)
221164 Bushing - Agitator Bottom Center Post
230624 Capacitor - Start (#282022 Compressor)
230659 Capacitor - Start (#282104 Compressor)
232086 Cap - Drive
282022 Compressor - Tecumseh - R404A (60 Hz) (w/Capacitors)
284010 Condenser (Air-Cooled)
294482-T Control - Electronic Torque (60 Hz)
314216 Cover - Plastic
314217 Cover - Sliding
417006 Grid - Drip Tray (Vinyl Coated Metal)
423013 Cover - Toggle Switch (Snap-on)
522231 Motor - Gear Reduction (Oriental)
522833 Motor - Fan (Air-Cooled Condenser) (50/60 Hz)
571016 Pin - Roll 1/8" X 3/4" (Small - Bottom)
618164 Relay (#282012 Compressor)
624715-5 O-Ring - Liquid Level Indicator (5 Pack)
624737-5 O-Ring - Agitator - Black (5 Pack)
625456 Retaining Ring - Tru Arc
695783 Spring - Electronic Torque Tension (Red)
696130 Clip - Lock - Horseshoe Clip
718149 Switch - Micro (Electronic Torque Control)
718561 Switch - Toggle
739533 Timer (24 Hour)
744273 Tray - Drip (For Stainless Tray Assembly)
754107 Tube - Red Float (#2119012)
762410 Valve - Expansion (R404A)
766539 Washer - Motor Assembly (See #2149065 Bearing)
767519 Disc - Anti-Lift
1127494 Bushing (Top of Center Post)
1133960 Spring & Eyebolt Assembly (Silver)
1170735 Bracket - Capacitor #231062
1171812 Extension - Drive Motor Coupling
2119012 Indicator - Liquid Level Assembly
2121522 Stationary Finger (Baffl e Assembly)
2149065 Bearing - Motor Support (Requires #766539 Washer)
2149396 Kit - Timer control (24 Hour)
2159570 Panel - L.H. Lower (Counter Model)
2159683 Panel - R.H. Lower (Counter Model)
2171810 Drive Shaft
2183658 Motor Assembly - Drive (Oriental) (60 Hz)
2202117 Motor Assembly - Drive (Oriental) (50 Hz)
3113940 Rack Only - Flavor Bottle (Requires #649000-23 Screws)
3146277-02 Evaporator Assembly (E257)
3158351 Panel - Rear (Counter Model)
3159478 Panel - Side (Counter Model)
3159479 Panel - Top Enclosure (Counter Model)
3159569 Panel - Front Lower (Counter Model)
4109212-SV Agitator - Three Blade
4111592 Plate - Divider
4172883 Support - Drip Tray
718686 Switch - Pressure (High Pressure Cutout)
Service Manual #513652 11 E157A/E257A Model Machines
3.4 E257 PARTS
624715-5
754107
2119012
314217
232086
624737-5
4109212-SV
314216
3149024
221164
5276
5309-12
4111592
417006
744273
423013
767519
5332
2121522
3113940
696130
718561
202002
4172883
490701
2171810
1127494
718686
3146277-02
618164
766539
762410
282022
739533
2149396
2149065
718149
625456
522833
695783
162070
200037
1171812
284010
3159575
Service Manual #513652 12 E157A/E257A Model Machines
571016
1133960
294482-T
294485
2183658
3.4 E257 PARTS (CONTINUED)
Part Number Description Quantity
5276 Sealer Ring (Stainless Steel)
5309-12 Wing Nut
5332 Panel - Lower Side (Floor Model)
162070 Blade - Fan (Air-Cooled Condenser)
200037 Bracket - Motor Mounting
202002 Switch - Reset (Circuit Breaker)
221164 Bushing - Agitator Bottom Center Post
230624 Capacitor - Start (#282022 Compressor)
230659 Capacitor - Start (#282104 Compressor)
232086 Cap - Drive
282022 Compressor - Tecumseh - R404A (60 Hz) (w/Capacitors)
282104 Compressor - 50 Hz
284010 Condenser (Air-Cooled)
294482-T Control - Electronic Torque (60 Hz)
294485 Control - Electric Torque (50 Hz)
314216 Cover - Plastic
314217 Cover - Sliding
417006 Grid - Drip Tray (Vinyl Coated Metal)
423013 Cover - Toggle Switch (Snap-on)
490701 Leg (Diecast Aluminum) (Floor Model)
522833 Motor - Fan (Air-Cooled Condenser) (50/60 Hz)
571016 Pin - Roll 1/8" X 3/4" (Small - Bottom)
618164 Relay (#282012 Compressor)
624715-5 O-Ring - Liquid Level Indicator (5 Pack)
624737-5 O-Ring - Agitator - Black (5 Pack)
625456 Retaining Ring - Tru Arc
695783 Spring - Electronic Torque Tension (Red)
696130 Clip - Lock - Horseshoe Clip
718149 Switch - Micro (Electronic Torque Control)
718561 Switch - Toggle
739533 Timer (24 Hour)
744273 Tray - Drip (For Stainless Tray Assembly)
754107 Tube - Red Float (#2119012)
762410 Valve - Expansion (R404A)
766539 Washer - Motor Assembly (See #2149065 Bearing)
767519 Disc - Anti-Lift
1127494 Bushing (Top of Center Post)
1133960 Spring & Eyebolt Assembly (Silver)
1170735 Bracket - Capacitor #231062
1171812 Extension - Drive Motor Coupling
2119012 Indicator - Liquid Level Assembly
2121522 Stationary Finger (Baffl e Assembly)
2149065 Bearing - Motor Support (Requires #766539 Washer)
2149396 Kit - Timer control (24 Hour)
2171810 Drive Shaft
2183658 Motor Assembly - Drive (Oriental) (60 Hz)
2202117 Motor Assembly - Drive (Oriental) (50 Hz)
3113940 Rack Only - Flavor Bottle (Requires #649000-23 Screws)
3146277-02 Evaporator Assembly (E257)
3149024 Panel - Rear Lower (Floor Model)
3159575 Panel - Front Lower (Floor Model - 60 Hz)
4109212-SV Agitator - Three Blade
4111592 Plate - Divider
4172883 Support - Drip Tray
718686 Switch - Pressure (High Pressure Cutout)
Service Manual #513652 13 E157A/E257A Model Machines
3.5 SPIGOTS
1120918
482024
232002
694400
624607-5
1147688
1115840
5345-01
Part Number Description Quantity
5345-01 Shaft & Plug Assembly (Lower Spigot) 1
232002 Cap - Retaining (Top & Lower Spigot) 2
482024 Knob (Upper Spigot) 1
624607-5 O-Ring - Top & Bottom Spigot - Black (5 Pack) 2
694400 Spring - Spigot Body (Top & Bottom Spigot) 2
1115840 Handle - (Lower Spigot) (Thumb Nut) 1
1120918 Splash Defl ector 1
1123323 Spigot - Lower Assembly 1
1147688 Shaft & Plug Assembly (Upper Spigot) 1
2147689 Spigot - Upper Assembly 1
3.6 PANELS AND SCREWS
Part Number Description Quantity
5332 Panel - Lower Side (Floor Model)
422074 Grommet - Rubber (High Pressure Cutout)
644094 Screw - Cap (Drive Motor Mounting)
647653 Screw - Panel (Upper Counter Model Panel)
647899 Screw - Panel
649000-23 Screw - Flavor Rack
2159570 Panel - L.H. Lower (Counter Model)
2159683 Panel - R.H. Lower (Counter Model)
3149015 Panel - Rear (WFE257)
3149024 Panel - Rear Lower (Floor Model)
3158351 Panel - Rear (Counter Model)
3159478 Panel - Side (Counter Model)
3159479 Panel - Top Enclosure (Counter Model)
3159569 Panel - Front Lower (Counter Model)
3159575 Panel - Front Lower (Floor Model - 60 Hz)
Service Manual #513652 14 E157A/E257A Model Machines
3.7 PUMP PARTS (WFE257A)
1170867
1145038
1120847
296231
756067
2145082
522126
453003
1147800
600054-02
5475
718815
3144486
3149015
Part Description Quantity
5475 Tube - Connector (Fll-O-Matic) (WFE257)
296231 Control - Liquid Level (WFE257)
453003 Housing - Pump (2 Required) (WFE257)
522126 Gearmotor (WFE257)
600054-02 Roller (Fill-O-Matic Pump) (WFE257)
718815 Switch - Rocker (WFE257)
756067 Tubing - 1/4" ID (Per Inch) (WFE257)
1120847 Cover - Plastic w/Hole (WFE257)
1145038 Plug w/Metal Probe Assembly (Cover) (WFE257)
1147800 Tube - Pump (Fill-O-Matic) (WFE257)
1170867 Plug & Locater Assembly (Plugs Into #1145038) (WFE257)
2145082 Plug & Tubing Assembly (Complete) (WFE257)
3144486 Pump & Motor Assembly (WFE257)
3149015 Panel - Rear (WFE257)
Service Manual #513652 15 E157A/E257A Model Machines
Service Manual #513652 16 E157A/E257A Model Machines
WARRANTY
FROZEN UNCARBONATED BEVERAGE EQUIPMENT
1. Scope:
PW Stoelting, L.L.C. (“Stoelting”) warrants to the first user (the “Buyer”) that the evaporator assembly,
compressors, drive motors, and speed reducers of Stoelting frozen uncarbonated beverage
equipment will be free from defects in materials and workmanship under normal use and proper
maintenance appearing within five (5) years, and that all other components of such equipment
manufactured by Stoelting will be free from defects in material and workmanship under normal use
and proper maintenance appearing within twelve (12) months after the date that such equipment is
originally installed.
2. Disclaimer of Other Warranties:
THIS WARRANTY IS EXCLUSIVE; AND STOELTING, HEREBY DISCLAIMS ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE.
3. Remedies:
Stoelting’s sole obligations, and Buyer’s sole remedies, for any breach of this warranty shall be the
repair or (at Stoelting’s option) replacement of the affected component at Stoelting’s plant in Kiel,
Wisconsin, or (again, at Stoelting’s option) refund of the purchase price of the affected equipment,
and, during the first twelve (12) months of the warranty period, deinstallation/reinstallation of the
affected component from/into the equipment. Those obligations/remedies are subject to the
conditions that Buyer (a) signs and returns to Stoelting, upon installation, the Start-Up and Training
Checklist for the affected equipment, (b) gives Stoelting prompt written notice of any claimed breach
of warranty within the applicable warranty period, and (c) delivers the affected equipment to Stoelting
or its designated service location, in its original packaging/crating, also within that period. Buyer shall
bear the cost and risk of shipping to and from Stoelting’s plant or designated service location.
4. Exclusions and Limitations:
This warranty does not extend to parts, sometimes called “wear parts”, which are generally expected
to deteriorate and to require replacement as equipment is used, including as examples but not
intended to be limited to o-rings, hoses, seals, and drive belts. All such parts are sold
AS IS.
Further, Stoelting shall not be responsible to provide any remedy under this warranty with respect to
any component that fails by reason of negligence, abnormal use, misuse or abuse, use with parts or
equipment not manufactured or supplied by Stoelting, or damage in transit.
THE REMEDIES SET FORTH IN THIS WARRANTY SHALL BE THE SOLE LIABILITY
STOELTING AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO
EQUIPMENT SUPPLIED BY STOELTING; AND IN NO EVENT SHALL STOELTING
BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER
FOR BREACH OF WARRANTY OR OTHER CONTRACT BREACH, NEGLIGENCE OR
OTHER TORT, OR ON ANY STRICT LIABILITY THEORY.
SFWARR-105
Revision 0
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