Wells Manufacturing B-50 User manual

Category
Cookers
Type
User manual

This manual is also suitable for

PRELIMINARY SERVICE MANUAL
ELECTRIC CHAR BROILERS
WELLS MANUFACTURING COMPANY
P.O. Box 280 VERDI, NV. 89439
PHONE: (702)345-0444
FAX: (702)345-0569
Part #62455
Data sheets and text of this manual are representative of current
production models as of 12/17/91. Specifications, Model Numbers,
and data are subject to change at any time without notice.
CAUTION:
NEVER SUBMERGE ELECTRICAL EQUIPMENT IN WATER. AVOID CONTAMINATING
ELECTRICAL COMPONENTS WITH MOISTURE WHEN CLEANING CABINET SURFACES.
When service is required to connect electrical or temperature complaints, always
refer service to a Wells Factory Authorized Service Agency. NOTE: Refer to Wells
Form 37001 for a complete listing of Factory Authorized Service Agency Locations.
CAUTION:
When servicing or cleaning the equipment in this manual, always remove live power
for safety. Use proper cautions when power must be restored while making live
voltage measurements to avoid the possibility of electrical shock.
01/10/92 Rev.-
PAGE i-1 TABLE OF CONTENTS 'SERVICE MANUAL B-40 Through B-506 Broilers
INTRODUCTION 1-1
MODEL IDENTIFICATION 1-1
WARRANTY IMFOBMATION 1-1
PURPOSE 1-1
SERVICE CAUTIONS 1-1
SAFETY CAUTIONS 1-1
LEGS, STANDS AND CASTERS 1-2
IMPORTANT INSTALLATION NOTES 1-2
VENTILATION REQUIREMENTS 1-2
CLEANING 1-2
OPERATION 1-2
IDLE TIME 1-2
END OF SHIFT SHUTDOWN 1-3
ELEMENT/COLD WATER CAUTION 2-1
COMPONENT REPLACEMENT 3-1
INFINITE CONTROL SWITCHES 3-1
CONTACTORS 3-1
ELEMENT REPLACEMENT 3-1
PIVOT HOUSINGS 3-1
CAST IRON GRATES 3-2
GRATE INSTALLATION NOTES 3-2
TROUBLE SYMPTOM CHART 4-1
PARTS LISTS 5-1 - 5-2
WIRING DIAGRAM, B-40, B-406, 208, 240 VOLTS 6-1
WIRING DIAGRAM, B-44, B-446, 208, 240 VOLTS 6-2
WIRING DIAGRAM, B-50, B-506, 208, 240 VOLTS 6-3
PAGE 1-2 SERVICE MANUAL B-40 Through B-506 Broilers
LEG, STANDS AND CASTERS:
a.
Legs are provided, stands and
b. When casters are used, be sure the
stand casters are optional. Legs
two without locking brakes are in
must be installed to provide cooling
stalled at the rear and the two with
air to the lower end of the cabinet.
locking brakes at the front of the
Be sure that the adjustable feet are
stand.
used to level the broiler.
IMPORTANT INSTALLATION NOTES:
1.
Installation of power supply flex
2. Installation must be done by an
(Uquid-tite) conduits or power
experienced and licensed technician.
cords should use fittings that are
The installation must conform with
designed for water/grease resistant
local codes, or, in the absence of
0-rings to seal out contaminants
local codes, with the National Elec
from the broiler interior.
tric Code.
VENTILATION REQuirements :
Information on the construction and in-
Commercial Cooking Equipment”, NFPA 96-
stallation of ventilating hoods may be
1978, available from the National Fire
obtained from the “Standard from the In-
Protection Association, 470 Atlantic Ave-
stallation of Equipment from the Removal of
nue, Boston, Massachusetts 02210.
Smoke and Grease Laden Vapors from -
CLEANING
Detailed instructions on cleaning and maintenance can be found in the operators
guide supplied as part of the owners installation and operation manual.
OPERATION
1.
Place water (One quart minimum) in
2. Preheat the broiler for ten (10)
the drip pan(s) below the elements
minutes by setting the control dials
to catch the melted fat falling from
to HI. Then lower each dial to a
the meat being cooked. Note: These
lower setting that will give the
pans must be cleaned regularlyand
desired temperature for cooking the
at least one quart of water in them
specific meat product that is being
for efficient operation.
prepared.
IDLE TIME
During slow periods of operation where
Returning the unit to its cooking tempera-
The broiler is not being used, turn the
ture only takes a few minutes once the
Control(s) down to the LO position to con-
control(s) have been set back up.
Serve energy.
SERVICE MANUAL B-40 Through B-506 Broilers PAGE 1-1
INTRODUCTION
Wells electric Broilers are available in
counter-top and built-in versions with line
rated 208 and 240 Volt elements with Infi-
nite Control Switch temperature control
systems. KW ratings for the B-40 and B-
406 are 4.6, the B-44 and B-446 are 5.4,
and the larger B-50 and B-506 is 10.8.
All have removable cast iron cooking
grates nested within the tubular elements.
Each head assembly has a pivoted mount-
ing and safety locking mechanism to allow
the head to be lifted to a near vertical
position for ease in cleaning without dan-
ger of falling back to the cooking position.
MODEL IDENTIFICATION
The B-40 is a 24% inch wide by 23 ½ inch
deep countertop char broiler. The B-406
is the built-in version. The B-44 is a 19
7/16 inch wide by 29 9/16 inch deep coun-
tertop unit and the B-446 is the built-in
version. The B-50 is a 36 ½ inch wide by
29 ½ inch deep unit and the B-506 is the
built-in version.
PURPOSE
These electric counter-top and built-in
These Broilers cook various cuts of meat
broiler units are used to char broil meat
leaving a cosmetic char branding and a
products in commercial kitchen applications.
minimum of fat or grease on the meat.
SERVICE CAUTIONS:
Service should be performed only by a
are subject to high temperatures that may
qualified technician. Temperatures found
cause burns. Use caution when handling
in these broilers require caution to avoid
or servicing the broiler to avoid causing
any contact with components that
damage that may compromise safety.
SAFETY CAUTIONS:
1.
The tubular elements are relatively
4.
Allow grates to cool down to a safe
self cleaning and should never be
handling temperature before at
scraped with any abrasive tools.
tempting to remove them for cleaning.
2.
On B-40 and B-406 models the grate
5.
Always adjust the height of the
is nested from the top side of the
grates on the bottom nested units so
elements, this requires care in
that the top of the grate is above
handling the head assembly not to
the top of the elements so that there
raise the head too fast which can
can be no contact between elements
displace the grate if the head up-
and the meat being cooked.
ward movement stops suddenly.
3.
On B-44 through B-506 models the
6.
Never pour water over hot elements.
Grate(s) should be nested from the
Never subject heating elements to
bottom. These models have 4 bat-
caustic sauces or cleaning agents
wing bolts that mount to the grate
that may cause corrosion to element
castings tabs on each corner to
sheaths that may result in splits or
position the height of the grate
holes in the element sheath.
above the drip pan directly below
the elements.
SERVICE MANUAL B-40 Through B-506 Broilers PAGE 2-1
END OF SHIFT SHUTDOWH
Turn the control(s) to the OFF position, allow the
heat assembly to cool down to a safe handling
temperature before brushing and scraping
excess build-up from the grates. Raise the head
assembly for accessing the drip pan(s). Empty
the drip pan(s) into an approved disposal
receptacle. Turn off the circuit breaker that
supplies power to the broiler before attempting to
wash down the broiler. Clean the interior and
exterior of the broiler with a clean cloth and mild
solution of soap or detergent.
Rinse with a clean cloth and warm water. Wipe
dry with a dry clean cloth. Install the clean drip
pan(s) into the cavity inside the broiler. Fill the
pan with a minimum of one quart of water. Lower
the head assembly, turn on the circuit breaker
that supplies power to the broiler. The unit is now
ready for the next day or shifts, use.
Caution:
Never pour cold waster
Possible injury may be
experienced an
d severe
damage to elements may occur.
SERVICE MANUAL B-40 Through B-506 Broilers PAGE 3-1
COMPONENT REPLACEMENT
Use standard practices associated with
3. Never attempt to adjust or
Electrical equipment. Use only O.E.M.
"Calibrate" Infinite Switches.
Replacement parts;
Always replace damaged or
malfunctioning Contactors rather
1.
Remove live power from broiler
than attempting cleaning.
before attempting any component
replacement.
4. Always compare overall lengths.
between new and old elements
2.
Support all electrical terminals when
because as elements age the flange
loosening or tightening connections
to flange lengths may change and
to avoid damage to component parts
cause warping of new elements.
such as elements and contactors.
INFINITE CONTROL SWITCHES
Always replace any push-on female Do not install mounting screws that are
terminals that do not fit tightly on the longer than 3/16" because the longer
male terminals of the control. Be sure that screws will extend into the body of the
the load wires are not connected to the control and damage it.
pilot terminal.
CONTACTORS
Use only O.E.M. replacement contactors Do not attempt to file or dress burned or
that are designed for the specific pitted contacts or clean sticking
application. Using Non O.E.M. Contactors armatures or contacts. Always replace
may cause additional problems and or contactors with any of, these problems.
liabilities.
ELEMENT REPLACEMENT
Never install "mixed voltage" (208 / 240) B-44. B446, B50, and B-506 units have 18
elements new or old in a head that is elements in each head assembly, none are
operated other than on the specified the loose fitting type. Do not mix voltage
voltage on the element sheath. Always or lengths that vary more than 1/16".
replace warped or cracked sheath Make sure all electrical connections are
elements with new elements. B-40 and B- tight, including the brass jumpers
406 Broilers have (4) "loose fitting" between terminals. Always support
elements in the center of the total of 24 terminals while tightening.
elements to allow for expansion when hot.
PIVOT HOUSINGS
Each broiler head assembly has a left and When replacing worn conductors, be sure
right pivot housing assembly (B-50 and B- to use the correct type and rated wire to
506 also have a common center pivot ensure safe and reliable operation. Do not
assembly). All power to energize elements attempt to patch or tape damaged wires.
is routed through these pivot assemblies. Always replace damaged wires.
Always replace "damaged" pivot housings.
PAGE 3-2 SERVICE MANUAL B-40 Through B-506 Broilers
CAST IRON GRATES
B-40 and B-406 Grates must be installed in the
top of the head assembly by inserting the rear
extensions through the elements from the top and
lowering the grate until it is nested between the
elements and the front web of the grate contacts
the front ends of the elements where they mount
to the front casting of the head assembly. With
this type of mounting the grate is raised any time
the head assembly is raised.
The larger B-44 through B-506 units can mount
the grates on top of the elements but must be
removed prior to raising the head assembly. A
more desirable way is to mount the grates below
the elements and head assembly, the grates
remain in their mounted on the drip pan location
when the head assembly is raised.
In this type of mounting, each grate is supported
below the elements using (4) wing stud (Feet)
bolts and (8) hex Jamnuts adjusted to give the
correct vertical protrusion above the elements.
The head of each wing stud is notched to allow the
studs to be installed from the bottom of the grate
on four ears at the end and sides of the grates, the
notches in the heads are then placed on top of the
rolled outer edge of the drip pan.
When adjusting overall height of the grates, a
spring loaded safety support rod must be able to
drop below the rear edge of the grate to allow the
head assembly to be lowered into the operating
position.
When the grate height adjustment is correct, the
safety support rod can be pulled forward as the
head assembly is raised enough to pull the rod
forward and then directed down behind the grate
rear edge as the head is lowered where the rod will
slide forward on top of the drip pan and below the
grate. When the adjustment allows this clearance,
the safety support-rod allows the head to be raised
an lowered without disturbing the grate or taxing
the pivots with the excessive weight of the grates.
SERVICE MANUAL B-40 Through B-506 Broilers PAGE 4-1
TROUBLE SYMPTOM CHART
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
NOT HOT
ENOUGH
GRATE IMPROPERLY
INSTALLED
HE-INSTALL GRATE TO ALLOW
PROPER ELEMENT TO GRATE HEIGHT.
HOT HOT
ENOUGH
WRONG VOLTAGE APPLIED TO
TERMINAL BLOCK. 208
APPLIED TO A 240V UNIT.
CHECK NAMEPLATE VOLTAGE
SPECIFICATIONS. IF WRONG
VOLTAGE, EXCHANGE UNIT FOR THE
CORRECT VOLTAGE UNIT.
NOT HOT
ENOUGH
HIGH RESISTANCE
CONNECTION (S)
CHECK FOR LOOSE TERMINAL, OR
BAD CONNECTION. CHECK CONTACTOR CONTACTS
FOR BURNED OR PITTED
CONTACT SET. CHECK ELEMENT
JUMPER CONNECTIONS.
GETS TOO HOT,
CAN'T CONTROL HEAT
DEFECTIVE INFINITE
CONTROL SWITCH
CHECK FOR STICKING CONTACTS IN
INFINITE CONTROL SWITCH.
GETS TOO HOT
CAN'T CONTROL HEAT
DEFECTIVE CONTACTOR,
CONTACTS DO NOT OPEN.
CHECK CONTACTOR CONTACTS WHEN
COIL NOT ENERGIZED. IF CLOSED,
REPLACE CONTACTOR.
TEMPERATURE
DOES NOT
CHANGE WHEN
CONTROL
SETTING IS
CHANGED
DEFECTIVE INFINITE
CONTROL SWITCH OR
CONTACTOR.
CHECK INFINITE CONTROL SWITCH FOR
CYCLING CONTACTS, IF NOT CHANGING
WHEN CONTROL SET HIGHER, REPLACE
CONTROL. IF CONTROL IS OK, CHECK
CONTACTOR CONTACTS, IF NOT
CYCLING, REPLACE CONTACTOR.
SOME
ELEMENTS
NOT HEATING
OPEN PHASE IN SUPPLY
CIRCUIT. OPEN ELEMENTS,
OPEN WIRE TO ELEMENTS.
CHECK ALL PHASES OF POWER SUPPLY
FOR NORMAL INPUT POWER, IP OK,
TURN OFF POWER AND MAKE
CONTINUITY CHECK OF ELEMENTS AND
WIRING.
INTERMITTENT
HEATING OF
SOME
ELEMENTS
LOOSE TERMINALS OR
WIRING, BAD CONTACTOR
CONTACT SET.
EXAMINE TERMINALS AND WIRING
CONNECTIONS FOR LOOSE OR DIRTY
CONNECTIONS. CHECK CONTACTOR FOR
DIRTY OR PITTED CONTACTS. REPLACE
CONTACTOR IF CONTACTS DEFECTIVE.
INFINITE
CONTROL
SWITCHES
FAIL AFTER
SHORT PERIODS
OF USE
OPEN CAPACITOR ACROSS
CONTACTOR COIL
TERMINALS.
REPLACE DEFECTIVE
(OPEN) CAPACITOR.
SERVICE MANUAL B-40 THROUGH B-506 BROILERS PAGE 5-1
PARTS LIST F/O FACTORY L/P=LOCAL A/R= AS REQUIRED
BROILER ORDER PURCHASE N/S= NOT SHOWN
ITEM PART
NUMBER NUMBER
COMPOMENT DESCRIPTION QTY NOTES
CABINET ASSEMBLY, B-40 1 F/O
CABINET ASSEMBLY, B-44 1 F/O
CABINET ASSEMBLY, B-50 1 F/O
52730 TOP ASSEMBLY, B-406 1
52747 TOP ASSEMBLY, B-446 1
52759 TOP ASSEMBLY, B-506 1
52727 COVER, FRONT, ELE. ASSEMBLY, B-40, B-406 1
52728 COVER, REAR, ELE. ASSEMBLY, B-40, B-406 1
52739
COVER, FRONT, ELE. ASSY.,
B-44, B-446, B-50*, B-506*
1
*2 Req.
B-50, 506
52740
COVER, REAR, ELE. ASSY.,
B-44, B-446, B-50*, B-506*
1
*2 Req.
B-50, 506
50001
JUMPER, ELE, LONG,
(16 B-44, B-50, Per head) (20 Per head B-40)
50002
JUMPER, ELE., SHORT,
(6 B-44, b-50, Per Head)(12 Per Head B-40)
50005 ELEMENT, 120V., 225W., B-40, B-406 20 240V UNIT
50006
ELEMENT, LOOSE FTG. 120V, 225W.,
B-40, B-406
4 240V UNIT
50007 ELEMENT, 104V., 225W., B-40, B-406 20 208V UNIT
50008
ELEMENT, LOSSE FTG. 104V., 225W.,
B-40, B-406
4 208V UNIT
50019
ELEMENT, 120V., 300W.,
B-44, B-446, B-50, B-506
18 240V UNIT
50020
ELEMENT, 104V., 300W.,
B-44, B-446, B-50, B-506
18 208V UNIT
52722 ELEMENT ASSY. & BASE, B-40, B-406, 208V 1
52723 ELEMENT ASSY. & BASE, B-40, B-406, 240V 1
82737
ELEMENT ASSEMBLY,
B-44, B-446, B-50*, B-506* 208V
1
*2 REQ.
B-50,506
52738
ELEMENT ASSEMBLY,
B-44, B-446, B-50*, B-506* 240V
1
*2 REQ.
B-50,506
PAGE 5-2 SERVICE MANUAL B-40 THROUGH B-506 BROILERS
PARTS LIST F/O= FACTORY L/P= LOCAL A/R= AS REQUIRED
BRILERS ORDER PURCHASE N/S= NOT SHOWN
ITEM PARTS
NUMBER NUMBER
COMPOMENT DESCRIPTION QTY NOTES
52729 ROD, SUPPORT, B-40, B-406 1
52741 ROD, SUPPORT, B-44, 446, 50*, 506* 1
*2 Req
B
-
50, 506
52840 BRACKET, PIVOT, LEFT, B-40-B-506 1
52841
BRACKET, PIVOT, RIGHT, B-40, 406, 44
446,50*, 506* *= 50 & 506 requires 2
1
2
B-50 &
B-506 (2)
52806 COVER, PIVOT BRACKET, LEFT OR RIGHT 2
53245 COVER, PIVOT, DOUBLE, B-50, 506 1
52329 HANDLE, HEAD ASSY. BROILERS *
2 Req
B-50, 506
52729 ROD, SUPPORT, B-40, 406 1
52428 SPRING, SUPPORT ROD, B-40 506 1
1 Per. Head Assy
54593 SWITCH, INFINITE CONTROL 2 208/240V
50371 KNOB, CONTROL 2
50516 LIGHT, SIGNAL, AMBER, B-40 2 208/240V
50131 TERMINAL BLOCK, 55A. B-40, B406 1
50412 TERMINAL BLOCK, 75A. B-50, B-506 1
57779
CONTACOTOR, 4 POLE 40A. 208V.,
B-44, B-446, B-50, B-506
2
57780
CONTACOTOR, 4 POLE 40A. 240V.,
B-44, B-446, B-50, B-506
2
55635 CAPACITOR, B-44, B-446, B-50, B-506 *
1 per contactor.
50516
LIGHT, INDICATOR, AMBER,
B-40, B-44, B-50
2
50385
LIGHT, INDICATOR, AMBER,
B-40, B-44, B-50
2
51023 PANEL, CONTROL 1 B-446
20563 LEG, 4 INCH, ADJUSTABLE * Set of 4
SERVICE MANUAL B-40 THROUGH B-506 BROILERS PAGE 6-1
WIRING DIAGRAM, B-40, B-406, 208, 240 Volt
PAGE .6-2 SERVICE MANUAL B-40 Through B-506 Broilers
Wiring Diagram, B-44, B-446, 208, 240 Volt.
SERVICE MANUAL B-40 Through B-506 Broilers PAGE 6-3
Wiring Diagram, B-50, B-506, 208, 240 Volt
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16

Wells Manufacturing B-50 User manual

Category
Cookers
Type
User manual
This manual is also suitable for

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI