Garland MCO-E-5, MCO-E-25 Operation Manual
U
:
4
INSTALLATION AND
OPERATION MANUAL
“THE MASTER” HALF SIZE
ELECTRIC
CONVECTION OVEN
FOR YOUR SAFETY:
DO NOT STORE OR USE GASOLINE
OR OTHER FLAMMABLE VAPORS OR
LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER
APPLIANCE
PLEASE READ ALL SECTIONS OF THIS MANUAL
AND RETAIN FOR FUTURE REFERENCE.
THIS PRODUCT HAS BEEN CERTIFIED AS
COMMERCIAL COOKING EQUIPMENT AND
MUST BE INSTALLED BY PROFESSIONAL
PERSONNEL AS SPECIFIED.
WARNING:
IMPROPER INSTALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE PROPERTY DAMAGE, INJURY,
OR DEATH. READ THE INSTALLATION,
OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT
INSTALLATION AND ELECTRICAL CONNECTION
MUST COMPLY WITH CURRENT CODES:
IN CANADA - THE CANADIAN ELECTRICAL
CODE PART 1 AND / OR LOCAL CODES.
IN USA – THE NATIONAL ELECTRICAL CODE
ANSI / NFPA – CURRENT EDITION.
ENSURE ELECTRICAL SUPPLY CONFORMS WITH
ELECTRICAL CHARACTERISTICS SHOWN ON
THE RATING PLATE.
Users are cautioned that maintenance and repairs must be performed by a Garland authorized service agent
using genuine Garland replacement parts. Garland will have no obligation with respect to any product that has been
improperly installed, adjusted, operated or not maintained in accordance with national and local codes or installation
instructions provided with the product, or any product that has its serial number defaced, obliterated or removed,
or which has been modified or repaired using unauthorized parts or by unauthorized service agents.
For a list of authorized service agents, please refer to the Garland web site at http://www.garland-group.com.
The information contained herein, (including design and parts specifications), may be superseded and is subject
to change without notice.
GARLAND COMMERCIAL INDUSTRIES, LLC
185 East South Street
Freeland, Pennsylvania 18224
Phone: (570) 636-1000
Fax: (570) 636-3903
GARLAND COMMERCIAL RANGES, LTD.
1177 Kamato Road, Mississauga, Ontario L4W 1X4
CANADA
Phone: 905-624-0260
Fax: 905-624-5669
Enodis
Swallow e
Telephone
Fax: 081-8
Part # 1844087 Rev 05 (11/03/08) © 2004 Garland Commercial Industries, LLC
Part # 1844087 Rev 5 (11/03/08) Page 1
IMPORTANT INFORMATION
WARNING:
This product contains chemicals known to the state of california to cause cancer and/or birth defects
or other reproductive harm. Installation and servicing of this product could expose you to airborne
particles of glass wool/ceramic fibers. Inhalation of airborne particles of glass wool/ceramic fibers
is known to the state of California to cause cancer.
Keep appliance area free and clear of combustibles.
Part # 1844087 Rev 5 (11/03/08)Page 2
TABLE OF CONTENTS
IMPORTANT INFORMATION..........................................2
DIMENSIONS AND SPECIFICATIONS ..................................4
INTRODUCTION.....................................................5
Rating Plate ......................................................................5
Power Failure ....................................................................5
INSTALLATION......................................................5
Clearances .......................................................................5
Installation of Ovens Equipped with Casters .......................................5
Installation of Double Deck Models ...............................................5
Ventilation .......................................................................6
Electrical Connections ............................................................6
OPERATING INSTRUCTIONS..........................................7
Master 200 Solid-State Control with Timer ........................................7
Modes.......................................................................7
Fan Speed ...................................................................7
Cool Down...................................................................7
Temperature ................................................................. 7
Timer........................................................................8
Master 450 Electronic Control with Cook-N-Hold ..................................8
Modes.......................................................................8
Controller Keys...............................................................8
Fahrenheit/Celsius............................................................9
Operating the Controls .......................................................9
Cook-N-Hold Operation ......................................................9
Setting Setback Feature ......................................................9
PERFORMANCE RECOMMENDATIONS ...............................10
PROBLEM/SOLUTIONS .............................................11
COOKING GUIDE...................................................12
COOK AND HOLD ..................................................13
MAINTENANCE AND CLEANING.....................................14
Break-In Period .................................................................14
Exterior Cleaning ...............................................................14
Interior Cleaning ................................................................14
Fan Area Maintenance ..........................................................14
Motor Care .....................................................................14
Part # 1844087 Rev 5 (11/03/08) Page 3
DIMENSIONS AND SPECIFICATIONS
Model #
Interior Dimensions (per deck) Shipping Information
Width Height Depth Lbs/Kg Cu Ft
MCO-E-5 15-1/2" (393mm) 20" (510mm) 21" (525mm) 290/130 38.5
MCO-E-25 15-1/2" (393mm) 20" (510mm) 21" (525mm) 580/260 77
Nominal Amperes Per Line
Package Total kW
208V/1Ph 240V/1Ph
208V/3Ph 240V/3Ph
XYZXYZ
Standard 5.6 26 22 23 12 14 20 12 14
Option 7.5 37 32 22 21 22 20 18 19
Electrical specications include motor requirements.
Other voltage options available upon request:
220/380 4-wire 50Hz
240/415 4-wire 50Hz
NOTE: Double decks ovens are provided with
individual supply connections.
Sides 2” (52mm) Back 0” (0mm)
Installation Notes:
Combustible Wall Clearances
Entry Clearance
Crated Uncrated
37” (940mm) 31” (737mm)
30"
[762 mm]
2-3/4"
[70 mm]
26-1/4"
[667 mm]
20"
[508 mm]
25"
[635 mm]
6" [152mm]
ELECTRICAL
INLET
8-1/4"
[210mm]
64"
[1626mm]
w/14" [356mm]
LEGS
or
55"
[1397mm]
w/5" [127mm]
CASTERS
OPTIONAL 14"
LEGS SHOWN
50"
[1270 mm]
14"
[356mm]
Part # 1844087 Rev 5 (11/03/08)Page 4
INTRODUCTION
Like any other ne, precision built appliance, the Master
Half Size Electric Oven should be given regular care and
maintenance. Periodic inspections by your dealer or a
qualied service agency is recommended.
Rating Plate
When corresponding with the factory or your local
authorized factory service center regarding service problems
or replacement parts, be sure to refer to the particular unit
INSTALLATION
Clearances
Combustible and Non-Combustible Wall Clearance:
Side: 2.0” (52mm)
Rear: 0.0” (0mm)
Note: Adequate clearance must be provided for servicing
and proper operation.
WARNING: Care must be taken in installation to allow for
airow around units, especially when placed near other heat
producing sources. A 4” spacing is recommended for the
control side of the oven from other heat producing sources.
by the correct model number (including the prex and sux
letters and numbers) and the warranty serial number. The
rating plate located on the backside of the control panel
contains this information.
Power Failure
In the event of a power failure, no attempt should be made
to operate this oven.
C. The restraint can be attached to the unit near the electric
inlet. If the restraint is disconnected, be sure to reconnect
the restraint after the oven has been returned to its
originally installed position.
Installation of Double Deck Models
A. Position insert in bottom leg opening and tap insert up
into leg until it seats at collar. Attach six inch (6”) legs to
lower oven section. Raise unit or lay on its left side. Place
the front legs on the oven so as to line up with four (4)
attaching bolt holes. Secure leg to oven frame using (4)
3/8-16 x 3/4 bolts and washers provided. Repeat at rear of
unit.
Installation of Ovens Equipped with Casters
A. For an appliance equipped with casters, the installation
shall be made with a connector that complies with the
Standard for Connectors for Movable Appliances, ANSI
Z21.69. Adequate means must be provided to limit the
movement of the appliance without depending on the
connector wiring.
B. The front casters of the unit are equipped with brakes to
limit the movement of the oven without depending on
the connector wiring to limit the appliance movement.
Part # 1844087 Rev 5 (11/03/08) Page 5
B. Remove lower front cover of top deck (located under
oven doors). Raise top deck into place and line up body
sides and back of the unit. Fasten the rear of the units
together, with the stacking bracket, using (6) 1/4-20
machine screws, lock washers and nuts, (provided).
C. Check leveling of unit four (4) ways (using a common
carpenter’s level on the rack inside the oven).
D. Maintain clearance from combustibles.
CAUTION: Disconnect Both Units from electrical Supply
Before Servicing.
INSTALLATION Continued
Ventilation
WARNING: Inadequate ventilation may result in a high
ambient temperature at the rear of the oven. Excessive
ambient temperature can cause tripping of the blower
motor’s thermal overload protection device. This condition
must be corrected immediately to avoid damage to the
blower motor.
IMPORTANT : Large objects should not be placed in front
of this oven, which would obstruct the airow through the
front. Objects should not be placed on main top rear of oven
while in use. This could obstruct the venting system of the
units.
Electrical Connections
Before attempting the electrical connection, the rating
plate should be checked to ensure that the unit’s electrical
characteristics and the supply electrical characteristics agree.
Installation of the wiring must be made in accordance with
U.L. 197 Commercial Electric Cooking Appliance Standards,
Local and/or National Electrical Code, ANSI/NFPA 70-1990.
1. Switch panel size
2. Overload protection
3. Wire type
4. Wire size
5. Temperature limitations of the wires
6. Method of connection (Cable, Conduit, etc.)
The service line will enter through the rear of the unit and is
to be connected to the terminal block (see diagram below).
The terminal block is accessed by removing the lower front
cover. Removal of the body side is not necessary.
Input voltage and phasing must match the units voltage
and phasing. Wiring diagram is attached to the main back of
each oven. Visually check all electrical connections. Energize
electric service to units. The range is wired standard for three
phase connections. If it is necessary to change to single
phase, please refer to wiring diagram attached to the rear of
the oven. Service and unit voltage must agree.
CABLE ENTRANCE AND CONNECTION POINT
FRONT REAR
TERMINAL
BLOC
REAR CABLE
ENTRANCE
SIDE VIEW (WITH BODY SIDE REMOVED)
Part # 1844087 Rev 5 (11/03/08)Page 6
OPERATING INSTRUCTIONS
Master 200 Solid-State Control with Timer
Modes
In O Mode
When the oven is o, there are no lights or indicators.
Start Up
Press the Cook/O/Cool Down rocker switch to the “Cook”
position. The green lamp will light indicating the oven is
powered in cook mode.
The oven will begin to heat to the temperature set on the
thermostat dial. The amber lamp will light indicating the heat
is active. As the heat cycles on and o to maintain the set
temperature this light will go on and o accordingly.
The door must be closed for the oven to operate in cook
mode. Opening the door will cause the heat to stop and the
motor and fan will shut o. This is a safety feature.
Fan Speed
The fan speed can be either high (1725RPM) or low
(1140RPM). The fan speed is controlled by the left rocker
switch marked high and low.
Cool Down
Pressing the Cook/O/Cool down rocker switch to the Cool
down position activates the fan and motor to cool the oven
cavity. The door must be open slightly for the fan and motor
to start. The heat is not active in this mode.
Optimal cool down will be achieved with the door open
slightly. Opening the door too far will shut the fan and motor
o. This is a patented safety feature.
Pressing the button to the OFF position cancels the cool
down and turns the oven o.
Temperature
The temperature range is from 150° to 500°F (66°C) to 250°C)
is controlled by rotating the temperature dial and aligning
the indicator to the desired temperature.
Part # 1844087 Rev 5 (11/03/08) Page 7
OPERATING INSTRUCTIONS Continued
Timer
The timer is set by rotating the dial clockwise aligning the
indicator to the desired time cycle. The timer will count down
from 2 minutes to 60 minutes. At the end of the timing cycle
the buzzer will sound. The buzzer is turned o by rotating the
dial counter-clockwise to the o position.
NOTE: Timer does not control heat
Master 450 Electronic Control with
Cook-N-Hold
Modes
In O Modes:
When the controller is o, the display will show “OFF”.
Pressing the ON/OFF key will activate the controller into
Start Up Mode.
On Start Up:
In Start Up mode, the controller will heat to the last set
temperature, time and fan speed. The factory defaults are
350°F (177°C), 30 minutes and low fan speed. The display will
indicate “LO” when the oven is below the set temperature.
When the oven cavity reaches the set temperature and is
ready for operation the display will indicate “LOAD”.
NOTE If the oven temperature goes above the requested
temperature the display will indicate “HI”. If the oven
temperature goes above 575° (302°C) the display will
indicate “HELP” and an audible signal will sound. This is a
safety feature.
If the door is opened during a Cooking mode, the fan and
heat will stop, and the display will indicate “DOOR” until the
door is closed. This is a patented safety feature.
Pressing the ACTUAL TEMP key will display the actual oven
temperature in 5° increments.
Controller Keys
Pressing the ON/OFF key will activate the oven.
Pressing the LIGHT key will turn the lights on for 30 seconds.
The lights will work if the controller is in the OFF mode. When
the door is opened, the light will come on and stay on for 30
seconds.
Pressing the FAN HIGH key will activate the lower fan speed
and light its LED.
Part # 1844087 Rev 5 (11/03/08)Page 8
OPERATING INSTRUCTIONS Continued
Pressing the FAN LOW key will activate the lower fan speed
and light its LED.
Pressing the FAN PULSE key will activate the lower fan speed
and light its LED. The fan will be active for 30 seconds then
o for 30 seconds, and continues this cycle.
Pressing the SETBACK key will cool the oven cavity to a
preprogrammed temperature (factory set at 250°F [121°C]).
The oven will automatically go into Setback mode after the
pre-programmed non usage time, (see ‘Changing Factory
Setback Program’). The display will indicate “SETB”. This is an
energy-saving feature.
Pressing the COOL DOWN key will deactivate the heat, turn
the fan on high and light its LED. This display will indicate
“OPEN DOOR” if the door is closed, prompting the user
to open the door slightly. With the door open slightly the
display will indicate “COOL”. The Cool down will operate
when the door is closed or opened slightly. Optimal cool-
down will be achieved with the door open slightly. When
the door opens wider, the Cool Down mode will deactivate
and the display will indicate “DOOR”. This is a patented safety
feature. Pressing the COOL DOWN key again will turn the LED
o and stop this mode. Pressing the ON/OFF key will also
cancel Cool down. Cool Down is not active during a cook.
When the ON/OFF switch is pressed to turn the oven o and
the oven is above 200°F (93°C), the oven will go into an Auto
cool Down mode. In Auto cool Down, the oven will run the
fan on high until the oven cavity drops below 150°F (66°C).
During this time the display will indicate “AUTO”. When
the oven temperature drops below 150°F (66°C) the oven
turns o. This feature protects the oven motor from premature
failure. Optimal cool-down will be achieved with door open
slightly.
Pressing the START/CANCEL key will start the timing cycle.
The display will count down from the SET time in minutes
and seconds (solid colon) or hours and minutes (blinking
colon) then minutes and seconds. When the cycle is
completed, processing this key will also cancel the “DONE”
prompt. To cancel a timing cycle in progress, press and hold
the START/CANCEL key for 3 seconds.
Cook-N-Hold Operation
Pressing the COOK/HOLD (450 and 455 Controllers Only) key
activates the Cook-N-Hold mode and lights its LED. To verify
the proper hold temperature has been selected, press the
SET key twice. The display will show the hold temperature.
At the end of the cook cycle, an audible alarm will sound, the
display will ash “DONE” and sound an audible signal for 3
seconds, after which the display will change to “HOLD” and
the oven will switch to the programmed hold temperature.
Setting the cook temperature, hold temperature and time
are done in the same manner. Pressing the SET key will
light the TEMP LED. The operator then sets the temperature
by rotating the dial on the controller until the desired
temperature is shown on the display. Pressing the SET key a
second time will light the HOLD LED and allows the operator
to select the desired hold temperature as shown on the
display. Pressing the SET key a third time lights the TIME
LED and allows the operator to select the desired cook time
as shown on the display. Pressing the SET key a fourth time
ends the programming.
Pressing the START/CANCEL key will start the timing
cycle. When the cycle is completed, pressing the key will
also cancel the “DONE” prompt. To cancel a timing cycle
in progress press and hold the START/CANCEL key for 3
seconds.
Fahrenheit/Celsius
Factory default is Fahrenheit (F). To change to Celsius (C),
press and hold in the “Phantom Key” located to the right of
“Cook/Hold” key. “F” appears in the display. Continue to hold
until “C” is displayed and then release the “Phantom key”.
Operating the Controls
Setting the cook temperature and time are done in the same
manner. Pressing the SET key will light the TEMP LED. The
operator then sets the temperature by rotating the dial on
the controller until the desired temperature is shown on the
display. Pressing the SET key a second time lights the TIME
LED and allows the operator to select the desired cook time
as shown on the display. Pressing the SET key a third time
ends the programming.
Part # 1844087 Rev 5 (11/03/08) Page 9
Setting Setback Feature
To set or change the setback settings, press and hold the
SETBACK key for two seconds. The TEMP LED will light and a
temperature will be displayed. Set the temperature using the
dial, then press the SET key. The TEMP LED will go out and
the TIME LED will light (“Time” is factory set at 0). Set the time
using the dial, then press the SET key. Press the SET key one
more time to exit programming.
Note: To disable the setback function, set the temperature to
250º F (121ºC) and the time to zero.
PERFORMANCE RECOMMENDATIONS
1. Preheat oven thoroughly (approx. 20 minutes) before use.
2. As a general rule, temperature should be reduced 25°
to 50° from that used in a standard/convection oven.
Cooking time may also be shorter, so we suggest closely
checking the rst batch of each product prepared.
3. Use the chart of suggested times and temperatures as
a guide. These will vary depending upon such factors
as size of load, temperature, and mixture of product
(particularly moisture) and density of product.
4. Keep a record of the times, temperature, and load sizes
you establish for various products. Once you have
determined these, they will be similar for succeeding
loads.
5. When practical, start cooking the lowest temperature
product rst and gradually work up to higher
temperatures.
6. If you nd that your previous temperature setting is more
than 10° higher than needed for succeeding loads, COOL
DOWN to reach the desired temperature before setting a
new cooking temperature.
9. Center pans on racks and load each shelf evenly to allow
for proper air circulation within the cavity.
10. When baking, weigh or measure the product in each pan
to assure even cooking.
11. When cooking ve pans, use rack positions 1, 3, 5, 7, and
9, starting from the top.
12. When re-thermalizing frozen casseroles, preheat the oven
100° over the suggested temperature. Return to cooking
temperature when the oven is loaded. This will help
compensate for the introduction of a large frozen mass
into the cavity.
13. Never place anything directly on the bottom of the oven
cavity. This obstructs the airow and will cause uneven
results.
Note: Moisture will escape around the doors when baking
products with heavy moisture content, such as chicken,
potatoes, etc. This is normal.
7. When loading oven, work as quickly as possible to
prevent loss of heat.
8. Oven will continue to heat even though the timer goes
o. Product should be removed from the oven as soon as
possible to avoid over cooking.
Part # 1844087 Rev 5 (11/03/08)Page 10
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