Market Forge 4292 Installation Manual
INSTALLATION, OPERATION AND PARTS MANUAL
ELECTRIC CONVECTION STEAMER
MODELS: PS-3E
PS-6E
S-6011 REV.A 11/09 1
OWNER’S MANUAL
ELECTRIC COMPACT CONVECTION OVEN
MODELS:
● 4200
● 4292
FORM NO.: S-2374 REV: A 02/07 An Employee Owned Company
PRINTED IN U. S. A. 35 Garvey Street • Everett • MA • 02149
Tel: (617) 387-47100 • Fax: 1-800-227-2659 (Ex. MA) • (617) 387-4456 (MA and Overseas)
E-mail: CUSTSERV@mi.com • Website: www.mi.com
TABLE OF CONTENTS
INTRODUCTION
DESCRIPTION.................................................................................................................................1
OVEN COMPONENTS ...................................................................................................................1
BASIC FUNCTIONING ...................................................................................................................1
SERVICE ........................................................................................................................................1
INSTALLATION
RECEIVING ....................................................................................................................................2
ASSEMBLY - VENT BOX ATTACHMENT .......................................................................................2
SINGLE OVEN - 4” LEGS & 28” LEGS WITH SHELF ....................................................................2
STACKED OVENS - 18” LEGS WITH SHELF ................................................................................3
ELECTRICAL CONNECTION .........................................................................................................3
OVEN CHECKOUT & ADJUSTMENTS ..........................................................................................4
THERMOSTAT CALIBRATION (OLD & NEW STYLES) .................................................................4
THERMOSTAT DIAL PLATE CALIBRATION (NEW STYLE) ..........................................................4
WIRING DIAGRAM .........................................................................................................................5
OPERATION
PRINCIPLES OF OPERATION .......................................................................................................6
CONTROLS ....................................................................................................................................6
PRE-HEATING ................................................................................................................................6
OPERATION ...................................................................................................................................6
MAINTENANCE
CLEANING ......................................................................................................................................7
REMOVAL & REPLACEMENT PARTS ...........................................................................................7
DOOR REMOVAL ...........................................................................................................................7
DOOR REPLACEMENT (OLD STYLE) ...........................................................................................7
OVEN LINER GASKET REMOVAL .................................................................................................7
GASKET REPLACEMENT ..............................................................................................................7
BLOWER WHEEL REMOVAL & REPLACEMENT .........................................................................7
MOTOR REMOVAL & REPLACEMENT .........................................................................................7
SWITCH REMOVAL & REPLACEMENT ........................................................................................8
CONTACTOR REMOVAL & REPLACEMENT .................................................................................8
THERMOSTAT REMOVAL & REPLACEMENT ..............................................................................8
HEATER ELEMENT REMOVAL & REPLACEMENT ......................................................................8
DOOR INTERLOCK SWITCH BRACKET (OLD STYLE) REMOVAL &
REPLACEMENT .............................................................................................................................8
NEW STYLE INTERLOCK SWITCH REMOVAL, REPLACEMENT & PARTS ................................9
HI-LIMIT REMOVAL & REPLACEMENT .........................................................................................9
TROUBLE-SHOOTING
GENERAL .......................................................................................................................................10
TROUBLE-SHOOTING GUIDE ......................................................................................................10
WIRING ...........................................................................................................................................11
ELECTRICAL FAULT ISOLATION GUIDE ......................................................................................11
ELECTRICAL CONNECTIONS - CONTROL BOARD ....................................................................12
ILLUSTRATED PARTS LIST
GENERAL .......................................................................................................................................13
ORDERING INFORMATION ...........................................................................................................13
4200 COMPACT CONVECTION OVEN & PARTS .........................................................................13-14
CONTROL PANEL, OPEN & PARTS .............................................................................................15
RIGHT SIDE VIEW & PARTS ........................................................................................................16
DOOR ASSEMBLY & PARTS ........................................................................................................17
INSIDE OVEN COMPARTMENT PARTS LIST ...............................................................................18
4200/4292 REVERSING SWING OF DOOR (S) ............................................................................18
INTRODUCTION
This service and parts manual contains general information, installation, operation, principles
of operation, trouble-shooting and maintenance information for the Market Forge Model 4200
Electric Compact Convection Oven. Also included are parts lists, in which each replaceable
part is identied and shown in an accompanying illustration.
DESCRIPTION
The Market Forge Model 4200 Electric Compact Convection Oven is an electrically powered convection oven designed to achieve
high volume cooking with a minimum of power consumption. The unit consists of a heavily
insulated cooking compartment tted with a
two speed convector blower and heated by
electric elements. All oven controls are located on a panel on the right front of the oven as
seen from the front.
OVEN COMPONENTS
The major assemblies of the model 4200 are
the stainless steel and at back painted steel
cabinet enclosure, door with window, porcelain cooking compartment with nine-position
shelf supports, heating element and contractor assembly, and control panel assembly.
Controls and indicators include the thermostat, main power switch, blower speed switch,
cool down/switch, elements on indicator light,
60-minute timer, and elements only switch.
The oven is available in variety of mounting congurations: 4” 102mm high-legs, 27”
686mm legs with shelf, or stacked on top of
another Model 4200 with the bottom unit on
18” 457mm stainless steel legs with shelf.
BASIC FUNCTIONING
The Model 4200 becomes operational when
the power switch is placed in the ON position,
door is closed, and thermostat set. Contrac-
tors located in the control section close the
circuit to heating elements located at the right
of the cooking chamber. When the chamber
reaches the preset temperature, the thermostat contacts open, causing the contractors to
interrupt the circuit to the heating elements.
When the temperature in the chamber drops
enough to close the thermostat contacts, the
circuit closes again. Any number of such cycles might occur during the cooking time, ~indicated by the element indicator light coming
on and off.
SERVICE
Required service, both preventive and corrective, is explained in section 5. Should repairs
be required, a network of authorized agencies
is available to assist with prompt service. A
current directory of Authorized Service Agencies may be obtained by contacting:
Product Service Department
Market Forge Company
35 Garvey Street
Everett, MA 02149-4403
(617) 387-4100
The model and serial number must be referenced when corresponding with Market
Forge. The data plate with serial number is
located on the right of the bottom front trim
ledge.
* We recommend that service be performed by a qualied Market Forge Authorized Service.
Service performed by others will void warranty. Market Forge is not responsible for repairs
made by other than authorized service agents.
1
INSTALLATION
RECEIVING
Examine shipment for external and inter-
1.
nal damage and completeness. Transport
crated oven through building, to installation area before unpacking.
2. Report any damage or shortages to car-
2.
rier and Market Forge immediately.
DO NOT AT ANY TIME LAY THE OVEN
3.
DOWN ON ITS TOP, RIGHT SIDE, OR
FRONT. TO DO SO MAY DAMAGE THE
EQUIPMENT AND VOID THE WARRANTY.
ASSEMBLY - VENT BOX ATTACHMENT
Remove steam vent box and packet of
1.
screws from inside oven and attach vent
box to back of oven over vent opening using ve #8 sheet metal screws.
Single Oven on 4” Legs
Fasten legs to the weld nuts located on bottom panel of oven. The hex foot on the leg is
adjustable.
Single Oven on 28” Legs with Shelf
Insert legs (Fig. 1 No. 3) through holes
1.
in shelf (Fig. 1 No. 1) Do not tighten setscrews in corners of shelf.
Screw leg tops (Fig. 1 No. 2) onto legs.
2.
(Fig. 1 No. 3)
Insert leg tops (Fig. 1 No. 2) through holes
3.
in angle iron frame (Fig. 1 No. 4) into weld
nuts in bottom of oven.
Screw leg tops (Fig. 1 No. 2) into weld
4.
nuts by turning leg and top assemblies.
Raise shelf (Fig. 1 No. 1) to desired height
5.
and tighten set screws in shelf corners.
Fig. 1
ITEM PART NO. DESCRIPTION QTY.
1 99-6180 SOLID SHELF ST/ST 1
2 A10-0635 LEG TOP 4
3 A10-0634 FLOOR LEG 28” HIGH 4
4 D99-6183 SHELF 1
2
INSTALLATION
Stacked Ovens on 18” Legs with Shelf
STACKING INSTRUCTIONS:
Fasten Item No. 1, stacking channel, to
1.
the bottom left side of top oven. Note - left
channel has (2) holes. Use nut & washer
(Item 3 & 4) front & rear.
Remove access panel from the right side
2.
of both ovens.
Remove knockouts from the top of the
3.
bottom oven and from the bottom of the
top oven.
Place upper oven on top of lower oven
4.
with the right side stacking channel placed
between. Line up holes in both ovens with
the holes in the channel.
Fasten ovens together with the washer
5.
(Item No. 4) and the bolt (Item No. 11)
Inserted up thru top of lower oven, thru
stacking channel and into bottom of upper oven, using the existing weld nut to
fasten the rear and the nut provided with
the stacking kit (Item No. 5) to fasten the
front.
ELECTRICAL CONNECTION:
Read data plate located on top surface of
1.
right side of bottom trim just below control
panel before connecting electrical supply
to oven. Make sure electrical supply is
the same voltage, phase, and frequency
called for on date plate.
All ovens are shipped three phase and
2.
may be converted to single phase as per
alternate single phase wiring diagram.
Feed supply through opening in rear of
3.
oven (Fig. 2-1 No. 2) and connect supply wires to terminal block behind control
panel.
Wiring diagram label is located on control
4.
bracket, accessible by opening control
panel.
NOTE: Improper connection to power supply
or connection to power supply other than that
designated on data plate will void the warranty.
Assemble stand, as shown, before stacking
ovens.
Fig. 2
ITEM PART NO. DESCRIPTION QTY.
1 B99-6203 Stacking Channel Left 1
2 B99-6204 Stacking Channel Right 1
3
3 10-2564 Hex Bolt
4 10-2411 Plain Washer -
5 10-2320 Nut, Hex -
6 99-6180 Solid Shelf 1
7 A09-5271 Floor Leg 18” High 4
8 A10-0635 Leg Top 4
9 D99-6183 Shelf 1
10 A25-3263 Set Screw & Wrench Kit 1
11 08-3426 Hex Bolt
/
-10 x 1
4
3
/
3
/
-10 x 4 Lg. 2
4
1
/
Lg. 2
2
3
/
4
-10 1
4
3
5
INSTALLATION
OVEN CHECKOUT & ADJUSTMENTS:
Door Adjustment (Old Style):
The door was properly adjusted at the factory,
if door does not open or close properly adjust
the ball plunger catch as .follows:
1. Remove adjusting wrench from back of
1.
manual and insert in notches on sides of
ball plunger.
Loosen jam nut with wrench.
2.
Turn adjusting wrench left or right until ball
3.
plunger engages in door striker plate for
best operation.
Tighten jam nut with wrench while adjust-
4.
ing wrench is still engaged in notches.
Return adjusting wrench to back of man-
5.
ual.
THERMOSTAT CALIBRATION
(OLD STYLE):
The thermostat is a device which automatically limits heat input at or below the dial setting.
Repeat steps 4 to 7 until oven tempera-
7.
ture stabilizes at 350°F+/- 5°F
Apply Glyptol or Duco Cement to set pot
8.
to prevent rotation.
THERMOSTAT DIAL PLATE CALIBRATION
(NEW STYLE):
Clamp thermocouple sensor in the center
1.
of the middle rack in compartment.
Pass the thermocouple sensor wire
2.
through the door gasket and close the
door.
Plug the sensor lead into the pyrometer.
3.
Set the oven power switch to ON.
4.
Set the thermostat knob to 3500 (191°C).
5.
Allow the oven to warm up for a minimum
6.
of (3) three ON/OFF cycles.
Before attempting to calibrate thermostat,
make sure that the thermostat is the cause
of problems experienced. Check for improper
electrical service, incorrect mixes over and
under proong, incorrect temperatures, and
warping pans. Thermostats are calibrated
and sealed by the original manufacturer before leaving their plant. Only a qualied service person should make calibration adjustments, if they become necessary.
CALIBRATE ELECTRONIC THERMOSTAT
(NEW STYLE):
Set oven thermostat knob at 350°F.
1.
Allow oven to preheat to 350°F.
2.
Observe temperature with digital ther-
3.
mometer.
If temperature goes above 350°F turn set
4.
pot labelled HI (on circuit board) counterclockwise. % turn should be sufcient.
Allow time for oven temperature to drop,
5.
then recheck temperature.
If temperature is below 350°F turn set pot
6.
labelled HI (on circuit board) clockwise.+/5°F turn should be sufcient.
Fig. 3
7. Record the temperature when the element indicator light goes off. If a temperature of 345°-355° is attained, no calibration is necessary .
8. If the temperature differs more than +/-
5°F from the dial setting:
Pencil mark the knob pointer position as a
•
reference point on the control panel next
to the dial plate
Loosen the dial plate mounting screws
•
only enough to move the plate.
Move the dial plate until calibration match-
•
es thermometer reading (350°F).
4
INSTALLATION
5
OPERATION
PRINCIPLES OF OPERATION:
Uniform distribution of heat within the oven
is assured by continuous operation of a convector blower. Moving air continuously strips
away a thin layer of moisture and cold air from
the top of the food allowing more rapid heat
penetration. Lower temperatures and shorter
times than those used in conventional deck
ovens ‘Can be used. In general, temperature
settings can be reduced by 50°F (28°C) from
recipe temperatures for conventional ovens.
Some products may require slightly higher
or lower temperatures. Product should be
checked for doneness in about half the time it
would take in a conventional oven. Time savings may be about 15% to 20%.
CONTROLS:
All controls for the Model 4200 oven are located on the control panel on the front of the
oven (Fig. 5). These controls are; a thermostat to control oven temperature (Fig. 5 No.
1), an Elements On indicator light (Fig. 5 No.
2), a power switch with ON and OFF positions (Fig. 5 No. 3), a blower switch with high
and low positions (Fig. 5 No. 4), a cool down
switch with manual and auto positions (Fig.
5 No. 5) and a 60 minute electro-mechanical
timer (Fig. 5 No. 6). Heating Elements Only
Switch (Fig. 5 Not Shown).
PRE-HEATING:
Set thermostat to desired temperature, set
1.
blower switch to desired speed, and turn
on power switch. Blower wheel should rotate clockwise when viewed from front of
oven. Low speed is suggested for fragile
products ie those levened by beaten egg
whites such as soufes, angel food cake
and popovers.
Indicator light will go out when desired tem-
2.
perature is reached. Oven will pre-heat to
350°F 180°C in about 10 minutes. Large
differences in time from this indicate faulty
heating elements, or connection to wrong
electric power supply.
Fig. 5
OPERATION:
Set temperature about 50°F (28°C) less
1.
than what recipe calls for when using
standard oven.
Load pans evenly on shelves making sure
2.
pans don’t touch sides of oven or other
pans.
Check food for doneness in about half the
3.
time it would take in a conventional deck
oven. Visual inspection of food can be
made without opening the door by looking
through tempered glass window.
Blower will automatically shut off by a door
4.
interlock switch when door opens. Closing
the door will restart the blower.
Blower may be operated with door open
5.
by placing cool down switch in manual
position. No power is suppled to heating
elements with cool down switch in manual
position, allowing rapid lowering of oven
temperatures with door open.
Heating elements only without blower fan
6.
when door is shut. (For delicate products)
6
MAINTENANCE
WARNING:
DO NOT HOSE DOWN UNIT AS IT
CONTAINS ELECTRICAL COMPONENTS.
CLEANING:
Clean interior of oven with a commercially
1.
available oven cleaner suitable for use on
porcelain.
Racks, rack supports, and blower wheel
2.
may be cleaned by soaking in ammonia
and water solution after removing them
from oven.
Stainless steel parts maybe cleaned using
3.
a commercially available stainless steel
cleaner.
REMOVAL & REPLACEMENT OF PARTS:
WARNING: Disconnect oven from main
power supply before working on oven.
DOOR REPLACEMENT (OLD STYLE):
Revere above procedure being sure to put as
many washers under as there were before removal.
OVEN LINER GASKET REMOVAL:
Remove all screws from gaskets.
1.
Remove all gaskets.
2.
GASKET REPLACEMENT:
Replace top and bottom metal gaskets on
1.
front off oven liner and screw in place.
Replace left and right side metal gaskets
2.
and screw in place.
BLOWER WHEEL REMOVAL:
Shut off main power supply.
1.
Remove bafe by placing hard under back
2.
end and rotating bafe up and out.
Loosen set screws located in the center of
3.
the blower wheel on the wheel hub.
Pull blower wheel off of shaft.
4.
DOOR REMOVAL:
Remove lower screw (Fig. 6, #1) from up-
1.
per hinge assembly of door.
Loosen top screw (Fig. 6, #2) from upper
2.
assembly.
Push upper hinge pin (Fig. 6, #3) into
3.
door.
Rotate top of door forward to clear upper
4.
frame.
Pull up and out on door to remove.
5.
Fig.6
BLOWER WHEEL REPLACEMENT:
Remove metal burrs and foreign matter
1.
from motor shaft with emery cloth or sandpaper.
Lubricate blower wheel hub with high
2.
graphite grease. (Remove blower and lubricate at least once every six months).
Place blower wheel on shaft. Make sure
3.
set screws are positioned over the ats on
the shaft. Make sure there is 3/16” clearance between blower wheel and oven
wall.
Tighten set screws to 160 in-lbs torgue.
4.
MOTOR REMOVAL:
Make sure main power supply is discon-
1.
nected from oven.
Remove bafe and blower wheel.
2.
Remove right side panel.
3.
Open control compartment cover.
4.
Remove motor bolt access plate.
5.
Remove four nuts and blots holding motor
6.
to motor mount.
Remove cover from wiring box mount on
7.
motor and disconnect wires.
7
MAINTENANCE
MOTOR REPLACEMENT:
Revere procedure above.
1.
Check motor wiring to make sure blower
2.
turns clockwise when seen from front of
oven.
SWITCH REMOVAL:
Make sure power supply to oven is off.
1.
Open control compartment cover.
2.
Disconnect wire to switch.
3.
Depress spring clips on switch and push
4.
forward.
SWITCH REPLACEMENT:
Push switch into proper control panel
1.
opening until spring clips catch.
Reconnect wire to switch.
2.
Close control cover.
3.
CONTACTOR REMOVAL:
Make sure power supply to oven is off.
1.
Open control comportment cover.
2.
Disconnect wire from appropriate compo-
3.
nent.
Unscrew fasteners of appropriate compo-
4.
nents and remove.
CONTACTOR REPLACEMENT:
Attach components to mounting.
1.
Replace and tighten fasteners.
2.
Reconnect wires.
3.
THERMOSTAT REMOVAL:
Make sure power supply to oven is off.
1.
Open control compartment cover.
2.
Remove racks and rack supports from
3.
oven compartment.
Remove bafe.
4.
Disconnect thermocouple lead wires from
5.
circuit board.
Unscrew thermocouple from oven liner.
6.
Pull thermocouple and wires through oven
7.
liner into oven compartment and remove.
Remove circuit board from bracket.
8.
THERMOSTAT REPLACEMENT:
Follow Thermostat Removal in reverse order.
HEATER ELEMENT REMOVAL:
Make sure power supply to oven is off.
1.
Remove right side panel.
2.
Remove element terminal cover above
3.
motor and disconnect wires.
Remove element plate and insulation
4.
spacer.
Remove racks and rack supports from
5.
oven cavity.
Remove bafe.
6.
Remove eight screws holding element as-
7.
sembly to the oven wall.
Remove elements.
8.
ELEMENT REPLACEMENT:
Follow Element Removal in reverse order.
DOOR INTERLOCK SWITCH BRACKET
REMOVAL (OLD STYLE):
Make sure power supply to oven is off.
Open control compartment cover.
Remove wires to door interlock switches.
Remove two bracket retaining screws.
Remove interlock switch assembly.
DOOR INTERLOCK SWITCH BRACKET
REPLACEMENT (OLD STYLE):
Insert long end of door activated plunger
1.
through hole in left front side of control
compartment.
Replace spring and switches in bracket
2.
and secure switch assembly with two
screws.
Position switches so that push buttons
3.
on switches just touch actuator plate on
plunger rod.
Replace wires using wiring diagram as
4.
guide.
Replace control compartment cover.
5.
8
MAINTENANCE
NEW STYLE INTERLOCK SWITCH
REMOVAL:
Make sure power supply to oven is off.
1.
Remove lower bottom trim, remove screws
2.
on end.
Remove screws from switch, to remove
3.
switch.
Remove marr connectors from leads, then
4.
remove switch.
REPLACEMENT OF SWITCH:
Follow New Style Interlock Switch Removal in
reverse order.
HI-LIMIT REMOVAL:
Make sure power supply to oven is off.
1.
Open oven door.
2.
Remove all shelves and rack supports.
3.
Remove bafe from right sire.
4.
Unscrew fasteners from Hi-Limit on liner
5.
wall and pull out.
Remove wire leads from Hi-Limit.
6.
HI-LIMIT REPLACEMENT:
Follow Hi-Limit Removal in reverse order.
Fig. 7
NEW STYLE INTERLOCK LOCATION
ITEM PART NO. DESCRIPTION
1 08-6308 Reed switch (fan interlock)
2 99-6168 Reed switch mounting bracket
3 REF. Marr connectors, two
9
TROUBLE-SHOOTING
GENERAL:
The information in this section is intended to
assist both the operator and service personnel in locating the general source of problems
which may occur with the model 4200 compact convection oven. Before following any of
the procedures gives in this section, the op-
TROUBLE-SHOOTING GUIDE:
PROBABLE CAUSE REMEDY
1. Convector fan fails to operate.
Power to oven is off.
a.
ON-OFF switch off.
b.
Oven door open.
c.
Faulty cool down switch ON-OFF switch,
d.
door switch, fan motor, wiring.
2. Oven will not heat with thermostat at maximum setting, fan operating.
Faulty thermostat wiring.
a.
Thermostat contacts or coil faulty.
b.
3. Indicator light fails to light with thermostat set, fan operating, oven hot.
Indicator light burned out.
a.
Faulty wiring.
b.
4. Erratic oven temperature.
Faulty thermostat operation.a. Recalibrate or replace as required.a.
5. Uneven heating.
One or more heating elements inopera-
a. Check wiring to elements; check for
tive.
erator should be thoroughly familiar with the
operating instructions and the function of all
controls described on page 6 of this manual.
If the problem cannot be readily corrected,
the operator should contact the nearest Authorized Market Forge Service Agency for assistance.
Locate external circuit breakers for
a.
power and place in ON position.
Place in ON position.
b.
Close door.
c.
Test each component and connecting
d.
wire, replace as required.
Test thermostat and connecting wiring.
a.
Replace as required.
Replace thermostat.
b.
Replace light.
a.
Check wiring and repair as needed.
b.
a.
burned out elements. Replace as required.
WE RECOMMEND THAT SERVICE BE PREFORMED BY A QUALIFIED MARKET
FORGE AUTHORIZED SERVICER. SERVICE PERFORMED BY OTHERS WILL VOID
WARRANTY. MARKET FORGE IS NOT RESPONSIBLE FOR REPAIRS MADE BY
OTHER THAN AUTHORIZED SERVICE AGENTS.
10
TROUBLE-SHOOTING
WIRING:
All the electrical components of the model
4200 (ON-OFF switch, door switch, thermostat control, contactors, fan motor, and indicator light) are connected to each other by
wiring shown on page 5. If all the electrical
components are operating correctly and the
incoming power has been checked, but the
unit fails to operate, the fault lies in the wiring.
ELECTRICAL FAULT ISOLATION GUIDE
FAILURE FAULT LOCATION
1. Oven will not operate when the thermostat is set. Incoming power
2. Intermittent operation of heaters. Thermostat control
3. Convector fan fails to operate. Cool down switch
4. Indicator light off, heater under power. Indicator light
5. Uneven heating. Heating elements
6. (Elements Only) fails to come on. Check switch
Using an ohmmeter, wiring continuity between
the connections, shown in the wiring diagram
is readily veried. This is best done in stages,
removing only those wires required for each
continuity check. As each lead is replaced, it
should be checked for evidence of corrosion
and cleaned if necessary. All leads must be
tightly attached to provide a good electrical
connection.
a.
Door switch
b.
Thermostat control
c.
ON-OFF switch
d.
Cool down switch
e.
Contactor
f.
Wiring
g.
a.
Contactor coil
b.
Wiring
c.
a.
ON-OFF switch
b.
Door Switch
c.
Fan motor
d.
Wiring
e.
a.
Wiring
b.
a.
Wiring
b.
a.
Check hi-limit switch
b.
Check wiring
c.
WE RECOMMEND THAT SERVICE BE PREFORMED BY A QUALIFIED MARKET
FORGE AUTHORIZED SERVICER. SERVICE PERFORMED BY OTHERS WILL VOID
WARRANTY. MARKET FORGE IS NOT RESPONSIBLE FOR REPAIRS MADE BY
OTHER THAN AUTHORIZED SERVICE AGENTS.
11
TROUBLE-SHOOTING
ELECTRICAL CONNECTIONS
CONTROL BOARD:
NOTE: New style board CANNOT BE CALIBRATED. Check thermocouple for fault in temperature control. If thermocouple is good, replace temperature control board.
Fig. 8
12
ILLUSTRATED PARTS LIST
GENERAL:
This section contains a complete listing of all
replaceable parts for the 4200 compact convection oven. For the purpose of parts identication, the unit is broken down into functional assemblies, and each assembly is shown
in a pictorial view which is keyed to the accompanying part list. Each parts list contains
the gure item number, the Market Forge part
number and an abbreviated description.
ORDERING INFORMATION:
Orders for repair parts should be directed to
the nearest authorized parts distributor. For
a current Market Forge Authorized Parts and
Service Distributor list go to our web site or
contact:
Market Forge Industries Inc.
Toll Free: (866) 698-3188
www.mi.com
Parts, Service and Availability Toll Free No.:
(888) 259-7076
Fig. 9
13
ILLUSTRATED PARTS LIST
Fig. 9 4200 Compact Convection Oven
ITEM NO. PART NO. DESCRIPTION
1 99-5826 CONTROL PANEL K-MART ONLY
2 09-5268 THERMOSTAT KNOB
3 09-6440 RED PILOT 250V
4 09-7231 SWITCH DPDT 250V, 10 AMP, RED, ON-OFF SWITCH
5 09-7244 SWITCH DPDT 250V, 10 AMP, BLUE, BLOWER SWITCH
6 09-7235 SWITCH DPDT 250V, 10 AMP, WHITE, COOL DOWN SWITCH
7 09-7231 SWITCH DPDT 250V, 10 AMP, RED, HEATING ELEMENTS ONLY
8 08-5839 THERMOSTAT DECAL
9 99-5830 TIMER DECAL
10 99-6136 SIDE GASKET
11 99-6101 TOP AND BOTTOM GASKET
12 09-5269 BLOWER WHEEL
13 09-7259 THERMOCOUPLE AND WASHER
14 09-7241 HEATING ELEMENT, OUTER, 280V-2500W, 220V-2800W (EXPORT)
14A 09-7242 HEATING ELEMENT, OUTER, 230V-2571W, 240V-2800W
15 097336 HEATING ELEMENT, INNER, 280V-2500W, 220V-2800W
15A 09-7337 HEATING ELEMENT, INNER, 230V-2571W, 240V-2800W
16 99-6102 HEATING ELEMENT BRACKET
17 99-6130 BAFFLE SUPPORT
18 99-5054 BOTTOM TRIM
19 99-5055
20 99-6107 OVEN INTERIOR COVER PLATE
21 09-5267 60 MINUTE TIMER KNOB
22 08-6351 HI-LIMIT THERMOSTAT
TOP TRIM
14
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