Wells M4200-3S Installation Manual

Place this chapter in the OVEN section of the equipment manual.

WELLS BLOOMFIELD, LLC

10 Sunnen Drive P.O.Box 430195

St. Louis, MO 63143 USA

telephone: [phone]

fax: [phone]

www.wellsbloomfield.com

CONVECTION OVEN

903

OWNERS MANUAL

VENTED

MODEL

M4200 Convection Oven

This instruction is for the exclusive use of licensees

and employees of McDonalds Systems, Inc.

IMPORTANT: DO NOT DISCARD THIS MANUAL

This manual is considered to be part of the appliance and is to be given to the OWNER or
MANAGER of the restaurant, or to the person responsible for TRAINING OPERATORS of

this appliance. Additional manuals are available from your WELLS DEALER.

THIS MANUAL MUST BE READ AND UNDERSTOOD BY ALL PERSONS USING OR

INSTALLING THIS APPLIANCE. Contact your WELLS DEALER if you have any

questions concerning installation, operation or maintenance of this equipment.

PRINTED IN UNITED STATES OF AMERICA

M4200-3S

M4200-3SEU

Includes

Installation

Use & Care

Programming

Exploded View

Parts List

Wiring Diagram

p/n 2M-307323 Rev. F M903 090923

INTRODUCTION

IMPORTANT: Use only factory
authorized service parts.

For factory authorized service,
or to order factory authorized
replacement parts, contact your
Wells authorized service agency,
or call:

Wells Bloomfield, LLC

10 Sunnen Dr., P.O.Box 430129
St. Louis MO 63143 USA

Service Dept.

phone: [phone]
fax: [phone]

Thank You for purchasing this Wells Bloomfield appliance.
Proper installation, professional operation and consistent

maintenance of this appliance will ensure that it gives you the very
best performance and a long, economical service life.

This manual contains the information needed to properly install this
appliance, and to use and care for the appliance in a manner that
will ensure its optimum performance.

xi

M903 2M-307323 Owners Manual M4200/M4200EU

TABLE OF CONTENTS

GENERAL

OPERATION

PROGRAMMING

MAINTENANCE

SERVICE

AGENCY LISTING INFORMATION 1
WARRANTY 2
PRECAUTIONS & GENERAL INFORMATION 3
SPECIFICATIONS 4
INSTALLATION 5

FEATURES & OPERATING CONTROLS
OVEN FEATURES 8
SMART CONTROLLER 10
OPERATION
QUICK-GLANCE OPERATING GUIDE 12
DAILY SET-UP 13
COOK CYCLE OPERATION 14

PROGRAMMING

IMPORTANT:

Programming to be performed by Qualified Personnel ONLY!
ENTER PROGRAMMING MODE 15

CHANGE PROGRAMMED SETTINGS 16
ENABLING SCRATCH BISCUIT BUTTON (#6) 18
INSTRUCTIONS TO CHANGE COOKIE SETTINGS 19
INSTALL OPERATING SYSTEMS SOFTWARE 20
TRANSFER MENUS FROM CARD TO OVEN 21
TRANSFER MENUS FROM OVEN TO CARD 21
DEFAULT SETTINGS 22

CLEANING INSTRUCTIONS 23
TROUBLESHOOTING SUGGESTIONS 25
PREVENTATIVE MAINTENANCE 26
TEMPERATURE CALIBRATION 27
HINGE ADJUSTMENT

EXPLODED VIEW and PARTS LIST 28
WIRING DIAGRAM M4200-3S 208V 32
M4200-3S 240V 33
M4200-3SEU 34
PARTS & SERVICE 37
CUSTOMER SERVICE DATA FORM 37

This appliance conforms to NSF Standard 4 for sanitation only if
installed in accordance with the supplied Installation Instructions and
maintained according to the instructions in this manual.

M4200-3S (domestic) ovens are and listed under UL File
E6070 for 208V and 240V.

M903 2M-307323 Owners Manual M4200/M4200EU

M4200-3SEU (European) ovens comply with standards
for 380-415V 3NAC

1

AGENCY LISTING INFORMATION

STD 4

E6070

E6070

LIMITED WARRANTY STATEMENT

The following equipment manufactured by WELLS BLOOMFIELD,
LLC for

sale to McDonald's, Inc. is warranted against defects
in materials and workmanship for a period of two years from
the date of installation (
on the equipment

as indicated by the installation punch-tag

), and is for the benefit of the original pur­chaser:
a. M4200-3 Convection Oven (208V and 240V models
only)
b. 1016BVM Coffee Brewer
All other equipment manufactured by WELLS BLOOM­FIELD, LLC for sale to McDonald's, Inc. is warranted against
defects in materials and workmanship for a period of one
year from the date of installation (
punch-tag on the equipment
purchaser:

as indicated by the installation

),

and is for the benefit of the original

THE FOREGOING OBLIGATION IS EXPRESSLY GIVEN
IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING ANY IMPLIED WARRANTY
OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, WHICH ARE HEREBY EXCLUDED.

WELLS BLOOMFIELD, LLC SHALL NOT BE LIABLE FOR
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES
OR LOSSES FROM ANY CAUSE WHATSOEVER.

This warranty is void if it is determined that upon inspection
by an Authorized Service Agency that the equipment has

been modified, misused, misapplied, improperly installed, or
damaged in transit or by fire, flood or act of God.
It also does not apply if the serial nameplate has been
removed or unauthorized service personnel perform service.
The prices charged by Bloomfield Industries for its products
are based upon the limitations in this warranty. Seller’s
obligation under this warranty is limited to the repair of de­fects without charge by a Wells Bloomfield Authorized Ser­vice Agency or one of its sub-agencies. This service will be
provided on customer’s premises for non-portable models.
Portable models (a device with a cord and plug) must be
taken or shipped to the closest Authorized Service Agency,
transportation charges prepaid, for services.

In addition to restrictions contained in this warranty, specific
limitations are shown below (Additional Warranty Exclu­sions). Bloomfield Industries Authorized Service Agencies
are located in principal cities.

This warranty is valid in the United States and void else­where. Please consult your classified telephone directory or
your food service equipment dealer; or, for information and
other details concerning warranty, write to:

Wells Bloomfield, LLC

10 Sunnen Dr., P.O.Box 430129 St. Louis MO 63143 USA

phone [phone] or fax [phone]

for information and other details concerning warranty.

SERVICE POLICY AND PROCEDURE GUIDE and ADDITIONAL WARRANTY EXCLUSIONS

1. Resetting of safety thermostats, circuit breakers, over
load protectors, and/or fuse replacements are not
covered by this warranty unless warranted conditions
are the cause.

2. All problems due to operation at voltages or phase
other than specified on equipment nameplates are
not covered by this warranty.
Conversion to correct voltage and/or phase must be
the customer’s responsibility.

3. All problems due to electrical connections not made

in accordance with electrical code requirements
and wiring diagrams supplied with the equipment are

not covered by this warranty.

4. Replacement of items subject to normal wear, to
include such items as knobs, light bulbs; and, normal
maintenance functions including adjustments of
thermostats, adjustment of micro switches and
replacement of fuses and indicating lights are not
covered by warranty.

5. Damage to electrical cords and/or plug due to exposure
to excessive heat are not covered by this warranty.

6. Full use, care, and maintenance instructions supplied
with each machine. Noted maintenance and

preventative maintenance items, such as servicing and

cleaning schedules, are customer responsibility. Those
miscellaneous adjustments noted are customer
responsibility. Proper attention to preventative
maintenance and scheduled maintenance procedures
will prolong the life of the appliance.

7. Travel mileage is limited to sixty (60) miles from an
Authorized Service Agency or one of its sub-service
agencies.

8. All labor shall be performed during regular working
hours. Overtime premium will be charged to the buyer.

9. All genuine Wells replacement parts are warranted for
ninety (90) days from date of purchase on non­warranty equipment. This parts warranty is limited only
to replacement of the defective part(s). Any use of

non-genuine Wells parts completely voids any

warranty.

10. Installation, labor, and job check-outs are not

considered warranty and are thus not covered by this
warranty.

11. Charges incurred by delays, waiting time or operating

restrictions that hinder the service technician’s ability to
perform service are not covered by warranty. This
includes institutional and correctional facilities.

M903 2M-307323 Owners Manual M4200/M4200EU

SHIPPING DAMAGE CLAIM PROCEDURE

NOTE: For your protection, please note that equipment in

this shipment was carefully inspected and packaged by
skilled personnel before leaving the factory. Upon
acceptance of this shipment, the transportation company
assumes full responsibility for its safe delivery.
IF SHIPMENT ARRIVES DAMAGED:

1. VISIBLE LOSS OR DAMAGE: Be certain that any
visible loss or damage is noted on the freight bill or
express receipt, and that the note of loss or damage is
signed by the delivery person.

2. FILE CLAIM FOR DAMAGE IMMEDIATELY:

Regardless of the extent of the damage.

3. CONCEALED LOSS OR DAMAGE: if damage is
unnoticed until the merchandise is unpacked, notify the
transportation company or carrier immediately, and file
“CONCEALED DAMAGE” claim with them. This
should be done within fifteen (15) days from the date
the delivery was made to you. Be sure to retain the
container for inspection.

Wells Bloomfield cannot assume liability for damage or loss
incurred in transit. We will, however, at your request, supply
you with the necessary documents to support your claim.

2

PRECAUTIONS AND GENERAL INFORMATION

This appliance is intended for use in commercial establishments
only.

This appliance is intended
No other use is
agents.

Operators of this appliance must be familiar with the appliance use,
limitations and associated restrictions. Operating instructions must be
read and understood by all persons using or installing this appliance.

Cleanliness of this appliance is essential to good sanitation. Read and
follow all included cleaning instructions and schedules to ensure the
safety of the food product.

Disconnect this appliance from electrical power before performing any
maintenance or servicing.

DO NOT submerge this appliance in water. This appliance is not jet
stream approved. Do not direct water jet or steam jet at this appliance,
or at any control panel or wiring. Do not splash or pour water on, in or
over any controls, control panel or wiring. Do not wash floor around
this appliance with water or steam jet.

Exposed surfaces of this appliance can be hot to the touch and may
cause burns.

Do not operate this appliance if the control panel is damaged. Do not
operate this appliance if the keypad section of the control panel is torn
or broken. Call your Authorized Wells Service Agent for service.

The technical content of this manual, including any wiring diagrams,
schematics, parts breakdown illustrations and/or adjustment
procedures, is intended for use by qualified technical personnel.

Any procedure which requires the use of tools must be performed by a
qualified technician.

This manual is considered to be a permanent part of the appliance.
This manual and all supplied instructions, diagrams, schematics, parts
breakdown illustrations, notices and labels must remain with the
appliance if it is sold or moved to another location.

This appliance is made in the USA. Unless otherwise noted, this
appliance has American sizes on all hardware.

recommended or authorized by the manufacturer or its

to prepare food for human consumption.

WARNING:

SHOCK HAZARD

All servicing requiring
access to non-insulated
electrical components
must be performed by a
factory authorized
technician.
DO NOT open any access
panel which requires the
use of tools. Failure to
follow this warning can
result in severe electrical
shock.

CAUTION:

RISK OF
DAMAGE

DO NOT connect or
energize this appliance
until all installation
instructions are read and
followed. Damage to the
appliance will result if
these instructions are not
followed.

CAUTION:

HOT SURFACE

Exposed surfaces can be hot
to the touch and may cause
burns.

M903 2M-307323 Owners Manual M4200/M4200EU

3

SPECIFICATIONS

DIMENSIONS APPLIANCE OVEN CAVITY
Wide 30-1/8” (765mm) 14-3/8” (365mm)
Deep 25-1/4” (641mm) oven only 21” (533mm)

27-7/8” (682mm) incl. handle
High 25-1/8” (638mm) oven only 20” (508mm)

34” (863mm) incl. prep-top\
and casters

Door Swing 20" (508mm )radius
ELECTRICAL

M4200-3S 208 VAC 3ø 60Hz 8750 kW total 21 Amps per leg
M4200-3S 240 VAC 3ø 60Hz 8750 kW total 21 Amps per leg
M4200-3SEU 380-415V 3NAC 5-/60Hz L1 11.7 Amps

8750 kW total L2 11.7 Amps
L3 11.7 Amps
N 1.0 Amps

Note: Shipped from the factory 3 phase with pin-and-sleeve electrical plug.

Unit is NOT approved for conversion to single phase.

4

M903 2M-307323 Owners Manual M4200/M4200EU

INSTALLATION

UNPACKING & INSPECTION

Carefully remove the appliance from the carton. Remove all
protective plastic film, packing materials and accessories from the
Appliance before connecting electrical power or otherwise performing
any installation procedure.

Carefully read all instructions in this manual and the Installation
Instruction Sheet packed with the appliance before starting any
installation.

Read and understand all labels and diagrams attached to the
appliance.

Carefully account for all components and accessories before
discarding packing materials. Store all accessories in a convenient
place for later use.

COMPONENTS
3 ea. OVEN RACKS

2 ea. RACK SUPPORTS
1 ea. FAN BAFFLE

ACCESSORIES
1 ea. LITERATURE PACKAGE

OPTIONAL ACCESSORIES
22882 Stacking and Venting Kit

505504 Venting Duct Assembly Kit (single oven)

SERVICE TECHNICIAN INSTALLATION NOTES

1. Installation and start up should be performed by an authorized
installation company. Installer must record installation particulars
on the CUSTOMER SERVICE DATA form on page 33 of this
manual.

2. Verify that this equipment installation is in compliance with the
specifications listed in this manual and with local code
requirements.

NOTE: DO NOT discard
the carton or other packing
materials until you have
inspected the appliance for
hidden damage and tested it
for proper operation.
Refer to SHIPPING DAMAGE
CLAIM PROCEDURE on the
inside front cover of this
manual.

WARNING:

RISK OF
INJURY

Installation procedures must
be performed by a qualified
technician with full knowledge
of all applicable electrical and
plumbing codes. Failure can
result in personal injury and
property damage.

IMPORTANT:
It is the RESPONSIBILITY
OF THE INSTALLER to
check with the AUTHORITY
HAVING JURISDICTION, in
order to verify compliance
with local codes and
ordinances for THIS
SPECIFIC EQUIPMENT
INSTALLATION.

M903 2M-307323 Owners Manual M4200/M4200EU

5

INSTALLATION (continued)

WARNING:

SHOCK HAZARD

All servicing requiring
access to non-insulated elec­trical components must be
performed by a factory author­ized technician.
DO NOT open any access
panel which requires the use
of tools. Failure to follow this
warning can result in severe
electrical shock.

NOTE: Oven is shipped with
biscuit baking adapter plate
attached to rear panel.
If oven is used exclusively for
bread products (bread, pies,
etc.), DO NOT remove adapter.

If oven is used for proteins,
install optional external vent
kit #505504. Protein requires
additional venting to decrease
release of cooking vapors when
opening the door.

Vent Duct Installation

EQUIPMENT SET-UP

1. IF CONVECTION OVEN IS TO BE USED FOR PROTEINS,
INSTALL EXTERNAL DUCT
a. Remove two screws at each end of adapter plate on back of
oven.
b. Loosen two screws at bottom of adapter plate. Remove
adapter plate.
c. Slide bottom flange of vent duct over the two loosened screws.
D. Install four and tighten screws at ends of vent duct, then
tighten bottom screws.

2. CURB or COUNTER MOUNTING
a. Setup the appliance only on a firm, level, non-combustible
surface. Verify local codes for requirements. Concrete, tile,
terrazzo or metal surfaces are recommended. Metal over
combustible material may not meet code for non-combustible
surfaces.
b. Appliance is approved for installation with zero clearance at
bottom.
c. Recommend at least 3” clearance on sides and back to allow
adequate air flow.

3. INSTALLING OPTIONAL CASTERS (NOTE: casters are not
provided and must be purchased separately: kits 21372 & 21373.)
a. Install casters, one on each corner of the appliance, in the
holes provided. Locking casters must be installed on the
FRONT of the appliance.
b. Set up the appliance only on a firm, level, non-combustible
surface. Verify local codes for requirements. Concrete, tile,
terrazzo or metal surfaces are recommended. Metal over
combustible material may not meet code for non-combustible
surfaces.
c. LEVELING: Verify that the appliance sits firmly on all four
casters when in its normal operational position. With a spirit
level, check that the appliance is level front-to-back and
side-to-side.

4. INSTALLING OPTIONAL LEGS (NOTE: Legs are not provided
and must be purchased separately: (kit 22226.)
a. Install adjustable legs, one on each corner of the appliance, in
he holes provided.
b. Set up the appliance only on a firm, level, non-combustible
surface. Verify local codes for requirements. Concrete, tile,
terrazzo or metal surfaces are recommended. Metal over
combustible material may not meet code for non-combustible
surfaces.
c. LEVELING: Verify that the appliance sits firmly ON ALL FOUR
LEGS. With a spirit level, check that the appliance is level
front-to-back and side-to-side.

5. OTHER OPTIONAL KITS
a. Kit 21445 Prep Top allows the top of the M4200 to be used
as an NSF 4-compliant work surface.
b. Kit 21342 Oven Stacking Kit allows M4200 units to be
stacked 2-high. The kit provides extended ducting for the
vent system.
c. Kit 505504 - Convert to protein oven.

M903 2M-307323 Owners Manual M4200/M4200EU

6

INSTALLATION (continued)

!

DANGER: SHOCK HAZARD

ELECTRICAL CONNECTIONS MUST BE MADE BY A

LICENSED ELECTRICIAN

Electrical shock will cause death or serious injury.

Refer to the nameplate on the front of the appliance.

• Verify the ELECTRICAL SERVICE POWER.

• Voltage and ph ase must match the nameplate specifications, and electrical

service amps must meet or exceed the specifications listed on page 1.
IMPORTANT:

The appliance is shipped from the factory wired for 3-phase (3ø) electrical
service. This appliance is not approved for 1ø operation. Conversion of this
appliance to single-phase operation will void the warranty.

M4200-3S (domestic) field wiring must be no less than 10 AWG 4 conductor
solid copper wire, rated for at least 90ºC.

NOTE: Wire gauge, insulation type and temperature rating , as well as type,
size and construction of conduit, must meet or exceed applicable specifications
of local codes and of the National Electrical Code.

This appliance is equipped with a Hubbell™ L430P9 plug, which must be
plugged into a matching Hubbell™ L430R9 receptacle. The ground lug of the
receptacle must be connected to a suitable building ground.

M4200-3SEU (European) field wiring must have a minimum cross-sectional
area of 1.5mm2.

NOTE: Strain relief supplied loose is for metal conduit connection. For flexible
power cords an approved strain relief fitting must be supplied by others.

EU INSTALLATION INSTRUCTIONS:

1. Using a screwdriver, remove terminal access panel located behind front
door marked: NOTICE - REMOVE THIS PANEL FOR TERMINAL BLOCK

2. Knock out the appropriate hole plug located on enclosure panel and

3. Thread supply leads through strain relief

M903 2M-307323 Owners Manual M4200/M4200EU

4. Secure all connections and reinstall terminal access cover.

5. “Equal Potential” grounding screw is located at rear of frame, marked
Remove screw and secure an appropriate grounding wire with
terminal.

IMPORTANT: An approved all pole power disconnect switch,
With at least 3 mm contact gap, must be supplied and installed in the
fixed wiring in an accessible location (close proximity to the appliance)
by a licensed electrician.

connect conduit strain relief.

• Connect supply power lines to terminals marked: L1, L2, L3

• Connect the neutral li ne terminal marked: N

• Connect green-with-yellow-stripe lead to ground lug marked

CAUTION:

RISK OF

DO NOT connect or energize
this appliance until all
installation instructions are
read and followed. Damage
to the appliance will result if
these instructions are not
followed.

DAMAGE

CAUTION:

SHOCK HAZARD

The ground lug of this
appliance must be connected
to a suitable building ground.

IMPORTANT:

Contact a licensed electrician to
install and connect electrical
power to the appliance.

IMPORTANT:

Damage due to being connected
to the wrong voltage or phase is
NOT covered by warranty.

IMPORTANT
PROGRAMMING NOTE:

This oven is pre-programmed
from the factory and normally
does not require programming
adjustments.

EU Connections

SUPPLYLINE 3
SUPPLYLINE 2
SUPPLYLINE 1

NEUTRAL

GROUND

L3
L2
L1

N

7

FEATURES & OPERATING CONTROLS

M4200 CONVECTION OVEN FEATURES

8

M903 2M-307323 Owners Manual M4200/M4200EU

FEATURES & OPERATING CONTROLS (continued)

ITEM DESCRIPTION FUNCTION

A. OPTIONAL PREP TOP Allows top of oven to be used as a work surface
B. OVEN TOP Covers and protects top insulation
C. OVEN DOOR Covers and provides access to oven cavity
D1. DOOR HANDLE Safe hand hold to open or close oven.

D2. DOOR STRIKER & LATCH Striker and door- mounted latch hold oven door closed
E. ACCESS PANEL Covers and provides access to fan motor and electric

connections and controls
F1. COOLING FAN INLET Provides air circulation for cooling. DO NOT spray or pour

F2. COOLING LOUVERS water into cooling fan inlet or louvers
G. POWER CORD

(not provided on EU models) Supplies power from receptacle to oven
H. CORD HANGER Provides storage for cord when moving oven
I. EXTERNAL CAVITY VENT Cooking fumes are vented here
J. OPTIONAL FRONT CASTERS Allow oven to be easily moved; locking to stabilize oven

when in position
K. OPTIONAL REAR CASTERS Allow oven to be easily moved.

L. POWER FUSES Protect electrical circuits from overload
M. DATA PLATE Provides manufacturer, model and serial number information.

Also, provides electrical specifications and requirements
N. POWER PLUG

(not provided on EU models) Plugs into power receptacle
P. CARD READER Reads menu card
Q. MENU CARD Contains default information; used to reprogram smart

controller with default settings in the event of program errors
R. ON/OFF SWITCH Energizes appliance

S. SMART CONTROLLER Controls cooking times and temperatures; selectable
pre-programmed settings.
DO NOT spray or pour water into controller

T. BEEPER Audible indicator for alarms, end-of-cycle, etc.
U. RACK SUPPORTS Hold cooking racks
V. PRODUCT RACK Holds product to be cooked

M903 2M-307323 Owners Manual M4200/M4200EU

W. HEATING ELEMENTS Provide cooking heat when energized
X. FAN Circulates heated air during cooking
Y. FAN BAFFLE Covers fan, also provides mounting for right rack support

9

FEATURES & OPERATING CONTROLS (continued)

SMART CONTROLLER

10

M903 2M-307323 Owners Manual M4200/M4200EU