Vulcan-Hart ERO15 User manual

A product of VULCAN-HART LOUISVILLE, KY 40201-0696
F35613 (September 2003)
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this
product, you may be qualified to perform all the procedures
described in this manual.
This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary tools, instruments and skills
required to perform the procedure. Procedures for which you do
not have the necessary tools, instruments and skills should be
performed by a trained Vulcan Service Technician.
Reproduction or other use of this Manual, without the express
written consent of Vulcan, is prohibited.
ERC50 WITH DUAL BASKET
LIFTS SHOWN
SERVICE MANUAL
ER SERIES ELECTRIC FRYERS
WITH TRIDELTA CONTROLS
MODEL ML
ERD50 135541
ERD85 135543
ERC50 135545
ERC85 135547
ERD50F 135561
ERD85F 135563
ERC50F 135565
ERC85F 135567
ERO15 135548
ERO21 135549
For additional information on Vulcan-Hart Company or to locate an authorized parts
and service provider in your area, visit our website at www.vulcanhart.com.

ER SERIES ELECTRIC FRYERS
F35613 (September 2003) Page 2 of 48
TABLE OF CONTENTS
GENERAL ................................................................................ 4
Introduction ............................................................................ 4
Single Floor Model Fryers ................................................................. 4
Model Designations ................................................................. 4
Models, Features and Options ......................................................... 4
Kleenscreen Filtering System .............................................................. 5
Model Designations ................................................................. 5
Models, Features and Options ......................................................... 5
Specifications .......................................................................... 6
Tools................................................................................. 6
Control Panels ......................................................................... 7
REMOVALANDREPLACEMENTOFPARTS .................................................... 8
Covers and Panels ...................................................................... 8
CookingControls ....................................................................... 9
Filter Valve and Discard Valve Switches .................................................... 10
TemperatureProbe .................................................................... 10
HighLimitThermostat .................................................................. 11
Power Supply Box Components ........................................................... 12
HeatingElements ...................................................................... 12
LiftAssistSprings ...................................................................... 13
TiltSwitch ............................................................................ 14
BasketLiftTube ....................................................................... 15
BasketLiftMotor....................................................................... 15
BasketLiftCamSwitch.................................................................. 16
Pump and Motor ....................................................................... 16
SERVICEPROCEDURESANDADJUSTMENTS................................................. 17
Temperature Probe Test ................................................................ 17
CookingControlCalibration .............................................................. 17
LiftAssistSpring Adjustment............................................................. 18
BasketLiftArmAdjustment .............................................................. 18
HeatingElementTest ................................................................... 19
SolidStateControl ..................................................................... 20
Operation ........................................................................ 20
Error Messages ................................................................... 20
Programming ..................................................................... 20
ComputerControl ...................................................................... 21
Operation ........................................................................ 21
ServiceProgramming ............................................................... 21
Error messages ................................................................... 21
EnterServiceMode ................................................................ 21
Display, Led and Keypad Test ........................................................ 22
ELECTRICALOPERATION .................................................................. 23
Component Function ................................................................... 23
Component Location ................................................................... 24
Power Supply Box ..................................................................... 25
Circuit Breaker/Supply Box ............................................................... 26

ER SERIES ELECTRIC FRYERS
F35613 (September 2003)
Page 3 of 48
Sequence of Operation .................................................................. 27
CookingControl,SolidStateorComputer ............................................... 27
FilteringSystem ................................................................... 28
SchematicDiagrams ................................................................... 30
Single Floor Model Fryers & Filtering System Fryer Batteries, Non Pump Side Fryer Section(s) ..... 30
FilteringSystemFryerBatteries,PumpSideFryerSection .................................. 31
HeaterCircuit ..................................................................... 32
BasketLiftCircuit .................................................................. 33
WiringDiagrams....................................................................... 34
Single Floor Model Fryers & Filtering System Fryer Batteries, Non Pump Side Fryer Section(s) ..... 34
FilteringSystemFryerBatteries,PumpSideFryerSection .................................. 36
BasketLift ........................................................................ 38
Filtering System Fryers, Filter/Discard Switch Connections .................................. 39
Frymate(DumpStation) ............................................................. 40
TROUBLESHOOTING ...................................................................... 41
All Models ............................................................................ 41
SolidStateControl ..................................................................... 42
ComputerControl ...................................................................... 42
SolidStateorComputerControlHarnessPin-Outs ............................................ 43
ControlInterfaceBoardPin-Outs .......................................................... 43
Frymate (Dump Station) with Optional Heater ................................................ 43
Kleenscreen Filtering System ............................................................. 44
CONDENSED SPARE PARTS LIST ........................................................... 48
© VULCAN 2003

ER SERIES ELECTRIC FRYERS - GENERAL
F35613 (September 2003) Page 4 of 48
GENERAL
INTRODUCTION
This Service Manual covers specific service information related to the models listed on the front cover. Current
production model fryers are built using a solid state control and computer control from Tridelta Industries (TDI).
SINGLE FLOOR MODEL FRYERS
Fryers with the Filter-Ready option installed, use the Mobile Filter. For service information related to the Mobile
filter, refer to F24599 MOBILE FILTERS.
An ERO Frymate (dump station) can be configured in a battery with fryers 15 1/2 inches or 21 inches in width.
Model Designations
Models, Features and Options
MODEL
FEATURES OPTIONS
FRYER
WIDTH
(INCHES)
SHORTENING
CAPACITY
(POUNDS)
FRY
TANK
COOKING
CONTROL
COOK TIMER
(MM:SS)
AUTOMATIC BASKET
LIFTS
ERD50 15 1/2 45-50 Full Solid State 0-99:59 Single or Dual
ERD85 21 85-90 Full Solid State 0-99:59 Single or Dual
ERC50 15 1/2 45-50 Full Computer 0-99:59 Single or Dual
ERC85 21 85-90 Full Computer 0-99:59 Single or Dual
ERO15
(Frymate) 15 1/2
ERO21
(Frymate) 21

ER SERIES ELECTRIC FRYERS - GENERAL
F35613 (September 2003)
Page 5 of 48
KLEENSCREEN FILTERING
SYSTEM
The Kleenscreen filtering system has been
integrated into the ER Series fryer battery. The filter
is housed in a pull-out drawer assembly at the base
of the fryer. The filtering components in the drawer
include a stainless steel filter tank, crumb-catch
basket and a dual element mesh filter screen. With
the filter drawer closed, a self-seating oil return line
provides the path to return the filtered shortening to
the fry tank.
This system is designed to provide a thorough and
easy method for filtering shortening.
Some of the benefits include:
• Self-contained system eliminating the use of
external filter equipment.
• Paperless filtering system.
• Easy to clean and low maintenance.
The fryer battery still utilizes many of the same
components as the Vulcan ER series fryers.
Kleenscreen fryer batteries are available in a
minimum of two and a maximum of four fryer
sections. The fryer size of each section is identical.
An ERO Frymate (dump station) can be included as
one of the sections.
Model Designations
Models, Features and Options
MODEL
FEATURES OPTIONS
FRYER
WIDTH
(INCHES)
FRYING OIL
CAPACITY
PER FRYER
(POUNDS)
FILTER PAN
CAPACITY
(POUNDS)
FRY
TANK
COOKING
CONTROL
COOK
TIMER
(MM:SS)
AUTOMATIC
BASKET LIFTS
2ERD50F 142 45-50 130 Full Solid State 0-99:59 Single or Dual
2ERD85F 242 85-90 130 Full Solid State 0-99:59 Single or Dual
2ERC50F 131 45-50 130 Full Computer 0-99:59 Single or Dual
2ERC85F 242 85-90 130 Full Computer 0-99:59 Single or Dual
ERO15
(Frymate) 15 1/2
ERO21
(Frymate) 21
NOTES: 1. For each additional fryer section, add 15 1/2 inches to the width. 2. For each additional fryer section,
add 21 inches to the width.

ER SERIES ELECTRIC FRYERS - GENERAL
F35613 (September 2003) Page 6 of 48
SPECIFICATIONS
MODEL
KW
PER FRYER
SECTION 2
AMPS - EACH FRYER
SECTION
(3 PHASE/ 60HZ) 1
PER LINE
208V 240V 480V
ERD50,
ERD50F
14 39 34 17
17 47 41 20
ERD85,
ERD85F 24 67 58 29
ERC50,
ERC50F
14 39 34 17
17 47 41 20
ERC85,
ERC85F 24 67 58 29
NOTES:1. Amperage values in the table are
nominal. Tolerance is +5/-10%.
2. 14kw is standard on all fryers except
85 lb. models which are 24kw.
Single Floor Model Fryers
• Fryers with the Filter-Ready option installed,
use a 120VAC power cord for the Mobile Filter.
• 208VAC, 240VAC or 480VAC (3 phase, 60HZ)
to power the heating elements.
Kleenscreen Filtering System
Separate electrical connections are required for
each section of the battery.
• 208VAC, 240VAC or 480VAC (3 phase, 60HZ)
to power the heating elements.
• On 208VAC and 240VAC models, a
transformer provides power for the fryer
controls, basket lift(s) if installed, and
Kleenscreen filtering controls.
• On 480VAC models, a 120VAC connection is
required for each fryer section.
• All models require a separate 120VAC
connection for the pump motor (5.0 amp draw).
TOOLS
Standard
• Standard set of hand tools.
• VOM with AC current tester.
NOTE: Any quality VOM with a sensitivity of
20,000 ohms per volt can be used.
• Temperature tester (thermocouple type).
Special
• Field service grounding kit P/N TL- 84919.
• Loctite 242 P/N 520228 or equivalent.
• Burndy pin extraction tool RX2025 GE1;
Newark Electronics Catalog Number 16F6666.
Used for removing pin terminals on Burndy
connectors.

ER SERIES ELECTRIC FRYERS - GENERAL
F35613 (September 2003)
Page 7 of 48
SOLID STATE CONTROL, D MODEL
COMPUTER CONTROL, C MODEL
CONTROL PANELS
Solid State
!Five product/programming keys: Left basket (up arrow); Right basket (down arrow); Temperature; Program
and Boil.
!Four digit display window that indicates fryer status, time left to cook, and actual or set point temperature.
Decimal point of first character indicates heat on when lit.
!Two LED lamps that illuminate when a basket timer is being programmed or blink to when a timer is
activated (left or right basket).
!Boil key for automatic or manual mode BOIL out cleaning of fry tank.
Computer
!Eighteen product/programming keys allow individual product cooking times for up to ten different products:
Product/Programming keys 1 thru 0; Oil Temp to view actual temperature or set the desired product cooking
temperature; L & R (Left & Right) basket selection; Toggle; Boil; and two Timer keys.
Left & Right Arrows - used to initiate programming of time and checking stored values (left 1-5 & right 6-0).
!Left & Right displays that indicate actual or set point temperature, remaining times, operating mode, and
completion of preheat period.
!Two LED lamps on the OIL TEMP key that indicate heat on and ten individual LED lamps above each of the
ten product/programming keys: LED’s blink when a product key is activated, solid when using a key for
programming.
!Boil key for automatic or manual mode BOIL out cleaning of fry tank.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003) Page 8 of 48
REMOVAL AND REPLACEMENT OF PARTS
COVERS AND PANELS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
Control Panel
1. Remove screws at top of control panel and
lower panel.
2. Disconnect wiring harness then remove control
panel.
3. Reverse procedure to install.
Element Head Cover
1. Remove basket hanger or lift arm(s) if basket
lift option is installed.
2. Remove screws from rear of element head
assembly.
3. Raise heating elements and place 2x4 lumber
under them for support.
4. Remove screws from the bottom of element
head assembly.
5. Grasp heating elements and remove 2x4
lumber. Lift the elements and pull toward rear
of fryer. Head cover will separate from element
head base.
A. Lower the heating elements and place
them in fry tank.
NOTE: Heating elements remain attached to
element head cover.
6. Reverse procedure to install.
Basket Lift Covers
NOTE: Applies to fryers with basket lift option only.
1. Access rear of fryer.
2. Remove basket lift arms from lift tubes.
3. Remove screws securing upper cover to fryer.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003)
Page 9 of 48
A. Lift the upper cover over support rods to
remove.
4. Remove screws securing lower cover to motor
mounting base.
5. Reverse procedure to install.
Rear Door (Access Cover)
1. Access rear of fryer.
2. Remove basket lift covers if basket lift option is
installed.
3. Remove access cover at the top.
NOTE: The cover is flanged at the top & bottom and
is held in place by an interference fit. The bottom
flange is formed to secure the cover to fryer.
4. Reverse procedure to install.
COOKING CONTROLS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Certain components in this system
are subject to damage by electrostatic discharge
during field repairs. A field service ground kit is
available to prevent damage. The field service
grounding kit must be used anytime the control
board is handled.
1. Remove the control panel as outlined under
CONTROL PANEL.
2. Remove cooking control by removing mounting
nuts securing the control and mounting panel
to front control panel.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003) Page 10 of 48
3. Lift the cooking control with mounting panel
attached, off the front control panel.
4. Reverse procedure to install.
5. Re-connect power and turn power switch on.
6. Program the cooking control for the control
type as outlined under SOLID STATE
CONTROL or COMPUTER CONTROL in
SERVICE PROCEDURES AND
ADJUSTMENTS.
NOTE: If installing a replacement cooking control,
program the control with the customers settings and
products.
7. Check for proper operation.
FILTER VALVE AND DISCARD
VALVE SWITCHES
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Open the door to the fryer section being
serviced.
2. Disconnect lead wire connector (2 pin) to the
switch.
3. Remove switch mounting screws.
4. Remove switch cover and disconnect lead
wires from switch.
5. Reverse procedure to install and check for
proper operation.
NOTE: Switches are not adjustable.
TEMPERATURE PROBE
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Do not sharply bend and kink the
temperature probe or damage may occur.
1. Raise heating elements.
2. Remove clamps from temperature probe.
3. Remove element head cover as outlined under
COVERS AND PANELS.
4. Disconnect temperature probe lead wires.