Garland MC-E20-2, MC-E20-2S, MC-E20-4, MC-E20-4C, MC-E20-6 Part Manual
...
SERVICE MANUAL
MANUFATURED EXCLUSIVELY FOR
McDonald's
BY
GARLAND COMMERCIAL INDUSTRIES, INC,
FREELAND, PENNSYLVANIA 18224
TOLL FREE: (800) 446-8367
PHONE: (570) 636-1000
FAX: (570) 636-9874
Come visit us on the web at www
.garland-group.com
E-mail: clamshell@gariand-group.com
NOTE:This manual pertains to 2 cell, 4 cell, and 6 cell pizza ovens. The reader/operator must
interpret its contents to applicable needs. However, if there is any question of interpretation of
any literature pertaining to Garland / McDonalds pizza ovens, please contact our Customer
Service Department at one of the phone numbers listed above.
MULTI-PURPOSE GARLAND
OVEN
MC-E20-2
MC-E20-2S
MC-E20-4
MC-E20-4C
MC-E20-6
MC-E20-6C
WARNING:
This product contains chemicals known to the State of California to cause cancer. *Installation and servicing of this product could expose you to airborne particles of glasswool/ceramic fibers. Inhalation of airborne particles of
glasswool/ceramic fibers is known to the State of California to cause cancer.
PLEASE READ ALL SECTIONS OF THIS MANUAL AND RETAIN FOR FUTURE REFERENCE.
CAUTION: THIS EQUIPMENT MUST ONLY BE OPERATED UNDER AN APPROVED HOOD SYSTEM
THIS EQUIPMENT "MUST" BE INSTALLED AND COMMISSIONED BY A PROFESSIONAL
FACTORY TRAINED TECHNICIAN
Part #MCDSVMN Rev. 5
Printed in the U.S.A
(07/00)
SAFETY ............................................................................................3
INTRODUCTION................................................................................3
WARRANTY ......................................................................................3
MC-E20-2
. . . . . . . . . . . . . . . . . . . . . . . . . 5
MC-E20-4
. . . . . . . . . . . . . . . . . . . . . . . . . 6
MC-E20-6. . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION - CANADA ..............................................................8
INSTALLATION - U.S.A.....................................................................8
PARTS IDENTIFICATION AND FUNCTION ....................................9
PARTS IDENTIFICATION AND FUNCTION ....................................10
PARTS IDENTIFICATION AND FUNCTION ....................................11
PARTS IDENTIFICATION AND FUNCTION ....................................12
Timer Switch ....................................................................13
Heat On Indicator ............................................................13
Temperature Switch ........................................................13
Select Switch ....................................................................13
On/Switch
..........................................................................13
HARDWARE ......................................................................................13
Control Switch Operation
................................................13
Before First Use
................................................................13
OPERATION ......................................................................................13
TO PROGRAM THECONTROLLER ................................................14
SET - UP ............................................................................................14
TO CHANGE DUTY CYCLE TOP ....................................................15
TO CHANGE REMOVE TIME ..........................................................15
TO CHANGE THE SET TEMPERATURE ........................................15
TO CHANGE DUTY CYCLE BOTTOM ............................................16
TO RESTORE FACTORY SETTINGS ..............................................16
TO CALIBRATE THECONTROLLER................................................17
TROUBLESHOOTING GUIDE ..........................................................18
CONTROLLER PRODUCT SETTINGS ............................................19
TO REPLACE CELL CONTACTOR ..................................................20
TO REPLACE THECONTROLLER ..................................................20
NON-SCHEDULED MAINTENANCE ................................................20
TO REPLACETHERMOCOUPLE......................................................21
TO REPLACE 24 VOLT TRANSFORMER........................................21
TO REPLACE HI-LIMIT CONTROL ..................................................21
TO REPLACE BLOWER MOTOR ASSY OR BLOWER WHEEL ....22
TO REPLACE MOTOR RESET SWITCH ........................................22
TO REPLACE DOOR ASSEMBLY....................................................23
TO ADJUST OR REPLACE DOOR SPRING, SLEEVE ASSY. OR
DOOR STOP W/CHAINON 4'S & 6'S BUILT PRIOR 4/23/93 ..........23
TO ADJUST OR REPLACE DOOR SPRING, SLEEVE ASSY. OR
DOOR STOP ON 4'S & 6'S BUILT AFTER 4/23/93 ........................23
TO REPLACE THE PROGRAM CHIP ..............................................24
TO REPLACE BUSHING ..................................................................24
Table of Contents
2
The model MC-E20-2, MC-E20-4 and MC-E20-6
are electric, air impingement ovens. The -4 is a four
cell oven and the -6 is a six cell oven. The -4 and 6 cell ovens also inter-lock to ventilation hood system and fire suppression system.
The models MC-E20-4C and MC-E20-6C are electric, air impingement ovens. However, these ovens
are exclusively for use in Canada and offer NO
inter-lock system to ventilation or fire suppression
system.
READ ALL SECTIONS OF THIS MANUAL
We warranty to the original purchaser only, that this
new GARLAND commercial cooking equipment sold
by us is free from all defects in material and factory
workmanship for a period of one year from our date
of shipment.
Further, component parts (excluding controllers and
motors) will continue in warranty (parts value only )
for an additional 24 months beyond the first year of
coverage.
Provided that:
A. The equipment has not been accidentally or
intentionally damaged, altered, abused ]or misused.
B. The equipment is properly installed,
adjusted, operated and maintained.
C. Has the warranty serial number affixed to
the appliance by us that has not been
defaced, obliterated or removed.
D. An acceptable report for any claim under
this warranty is supplied to us.
E. The equipment is not sold or used for
home or residential use.
Any defective part (excluding broken glass, ceramics, or porcelain, and light bulbs) brought to the
attention of the selling dealer or a listed Authorized
GARLAND Service Agency will be repaired or
replaced with out charge within the United States.
Shipment outside the United States will be prepaid
to our closest port.
We assume no liability for diagnosis, normal maintenance such as lubrication, adjustment, or calibration
of controls, nor for the cost of travel in excess of
either two (2) hours of fifty (50) miles to and from the
installation by an Authorized GARLAND Service
Agency.
This warranty is limited and is lieu of all other warranties, expressed or implied, and we neither
assume nor authorize any person to assume for us
any other obligation or liability in connection with our
equipment. We, our employees, or our agents shall
not be held liable for any claims for personal injuries
or consequential damages or loss, however caused.
WARRANTY INTRODUCTION
The GARLAND air impingement oven has many
safety features incorporated. However, the only way
to ensure safe operation is to fully understand the
proper installation, operation and maintenance procedures. The instructions in this manual have been
prepared to aid you in learning the proper procedures.
Where information is of particular importance or is
safety related, the word NOTE, CAUTION or
WARNING are used. Their usage is described
below:
NOTE - The word NOTE is used to highlight especially important information.
CAUTION - The word CAUTION is used to alert you
to a procedure that, if not performed properly, may
damage the equipment.
WARNING - The word WARNING is used to alert
you to a procedure, that if not performed properly,
may cause personal injury.
We suggest installation, maintenance and general
repairs be performed by local Authorized GARLAND Service Agencies shown in your GARLAND
Agency/Distributor list provided with the oven.
SAFETY
3
DIMENSIONAL DIAGRAM
MC-E20-2
5
DIMENSIONAL DIAGRAM
MC-E20-4
6
MC-E20-6
DIMENSIONAL DIAGRAM
7
CAUTION - Prior to installation, check the electric
supply to ensure input voltage and phase match the
equipment voltage rating and phase. See data plate
located top front of top cell control section.
NOTE - The -4 and -6 have two (2) Power Supply
Cords and one (1) Interconnect Cord. Each plug
shall be supplied by an individual branch circuit of 60
AMPS. These instructions must be followed to
ensure proper installation of this unit. The power
connections for the oven are two (2) NEMA No. 1560P, 60 AMP, 208/240 Volt, 3 Phase plugs and one
(1) NEMA No. L21- 20P, 20 AMP, 120/208 Volt, 1
Phase plug. The -2 utilizes one, 60 AMP, 250 Volt, 1
Phase plug, (receptacle provided).
Unit is to be located directly under ventilation system.
Unit must maintain a four (4") minimum clearance
from rear wall.
Unit must be level and front casters placed in locked
position.
WARNING - The appliance area must be kept free
and clear of combustibles.
WARNING - All electrical appliances must be electrically grounded in accordance with local codes or
in the absence of local codes, with national electric
code ANSI/NFPA - latest version.
CAUTION - The - 4 and - 6 have more than one (1)
power supply cord. Unplug all cords before moving
or servicing this appliance.
WARNING - INSTALLER NOTE - The -4 and -6
ovens are designed for connection to a special interlock system. Check receptacle wiring diagram below
before connecting.
CAUTION - Prior to installation, check the electric
supply to ensure input voltage and phase match the
equipment voltage rating and phase. See data plate
located top front of top cell control section.
NOTE - A four (4) pole, five (5) wire plug and a four
(4) wire with ground cord must be provided for
power connection on the -4C and -6C. Check the
local Codes and Standard for proper wire size.
Unit must maintain a four (4") minimum clearance
from rear wall.
Unit must be level and front casters placed in locked
position.
WARNING - The appliance area must be kept free
and clear of combustibles.
WARNING - All electrical appliances must be electrically grounded in accordance with local codes.
1
2
3
N
120 VAC
To Motor On Fan
Neutral
INSTALLATION - U.S.A. INSTALLATION - CANADA
8
ITEM PART # DESCRIPTION
2 CELL
QTY.
4 CELL
QTY.
6 CELL
QTY.
FUNCTION
1 1639700
Master On/Off Switch 1 1 Turns contactors on/off. Red
1 a 1639701 Master On/Off Switch 1 Turns contactors on/off. Amber
2 1637001
Main Contactor **1 2 2 Connects power to cell fuse.
1637002
Main Contactor 208/240 1 Connects power to cell fuse.
3 1233901
Terminal Block 1 1 1 115V Junction
3A 1193900 Terminal Block 1 2 2 208V Junction
*4 1718501 Power cord set 2 2 Supplies power to contactors
*5 1718502 Interlock cord set **1 1 1
Supplies power to Master Power
ON/OFF switch
*6
11718503
Power cord set 1 Supplies power to unit
*For U.S.A. models only. ** Used on 2 Packs after June 1993.
PARTS IDENTIFICATION AND FUNCTION
9
ITEM PART # DESCRIPTION
2CELL
QTY.
4 CELL
QTY.
6 CELL
QTY.
FUNCTION
8 1637700
Lockin Caster 2 2 2 Support base.
9 1637701
Non-Locking Caster 2 2 2 Support base.
ITEM PART # DESCRIPTION
2CELL
QTY.
4 CELL
QTY.
6 CELL
QTY.
FUNCTION
10 1631796
Bottom Jet Plate w uide 2 4 6. Directs heated air and supports rack.
11 1635000
Rack 2 4 6 Supports product.
12 8005200
1/4Turn Fastener Prior 7/93 8 12 **Secure jet late.
13 1635700
Controller 2 4 6 Controls time and temperature.
1635708
Rebuilt Controller 2 4 6 Control time and temperature.
14 1635900
Motor Rese t Sw itch 4 6 **Resta r t M o to r
15 1130107
Fuse 4 8 12 Reset Motor
16 1130106
Fuse Holder 4 8 12 Holds Fuse.
**Used Prior to June 1993
PARTS IDENTIFICATION AND FUNCTION
10
ITEM PART # DESCRIPTION
2CELL
QTY.
4 CELL
QTY.
6 CELL
QTY.
FUNCTION
17 1636000
24VAC Transformer 2 4 6 Provides voltage to 24V control system.
18 1636100
Thermocouple 2 4 6 Monitor oven temperature for control.
19 1682502
Cell Hi-Limit Control 2 4 6 Prevents excessive tem peratures
20 1637000
Cell Contactor 4 8 12 Provides voltage to heat elements
21 1636501
Blower Motor Capacitor (only) 24 6
ITEM PART # DESCRIPTION
2CELL
QTY.
4 CELL
QTY.
6 CELL
QTY.
FUNCTION
22 1616800
208VAC Heater Element 8 16 24 Heat source. Obs /Avail.
1616803
208VAC Heater Element 8 16 24 Heat source. Used after 4/29/94
1616801
40V Heater element 8 16 24 Heat source.
23 1636800
Blower W heel 2 4 6 Directs air to 'et plates.
24 1636599
Blower Motor Assy. 2 4
6
PARTS IDENTIFICATION AND FUNCTION
11
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