Middleby Marshall PS555G GAS Specification sheet

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ENGLISH
page 1
FRANÇAIS
page 25
ESPAÑOL
página 49
Middleby Cooking Systems Group  1400 Toastmaster Drive  Elgin, L 60120  [phone]  FAX [phone]
© 2001 Middleby Marshall, Inc.
is a registered trademark of Middleby Marshall, Inc. All rights reserved.
PS500 Series
Gas & Electric
Domestic & Std. Export
ENGLISH/French/Spanish
P/N 46450
Re . B  V2  11/01
OWNER'S OPERATING AND
INSTALLATION MANUAL
for domestic and standard export ovens
PS500 Series Gas and Electric Ovens
Model:
 PS555G Gas
 PS555E Electric
 PS570G Gas
Combinations:
 Single O en
 Double O en (Two-Stack)
 Triple O en (Three-Stack)
 Quad O en (Four-Stack)

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ENGLISH
Middleby Cooking Systems Group  1400 Toastmaster Dri e  Elgin, IL 60120  USA  [phone]  FAX [phone]
24-Hour Service Hotline: [phone]
www.middleby.com
NOTICE:
This Owner's Operating and Installation Manual should be gi en to the user. The operator of the o en should
be familiar with the functions and operation of the o en.
This manual must be kept in a prominent, easily reachable location near the o en.
Gas o ens are designed for use with EITHER natural gas OR liquid propane gas, as specified on the serial plate.
Where permitted by local and national codes, the o en can be con erted from natural gas to propane operation,
or from propane to natural gas operation. This con ersion requires the installation of the appropriate Middleby
Marshall Gas Con ersion Kit by an Authorized Ser ice Agent.
It is suggested to obtain a ser ice contract with a Middleby Marshall Authorized Ser ice Agent.
WARNING
POST, IN A PROMINENT LOCATION, THE EMERGENCY TELEPHONE NUMBER OF YOUR LOCAL GAS
SUPPLIER AND INSTRUCTIONS TO BE FOLLOWED IN THE EVENT YOU SMELL GAS.
Instructions to be followed in the e ent the user smells gas shall be obtained by consulting the local gas
supplier. If the smell of gas is detected, immediately call the emergency phone number of your local Gas
Company. They will ha e personnel and pro isions a ailable to correct the problem.
FOR YOUR SAFETY
Do not store or se gasoline or other flammable vapors or liq ids in the vicinity of
this or any other appliance.
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.
NOTICE: CONTACT YOUR MIDDLEBY MARSHALL AUTHORIZED SERVICE AGENT TO PERFORM MAINTENANCE
AND REPAIRS. AN AUTHORIZED SERVICE AGENCY DIRECTORY IS SUPPLIED WITH YOUR OVEN.
NOTICE: Using any parts other than genuine Middleby Marshall factory manufactured parts relie es the manufacturer of
all warranty and liability.
NOTICE: Middleby Marshall (Manufacturer) reser es the right to change specifications at any time.
NOTICE: The equipment warranty is not alid unless the o en is installed, started and demonstrated under the super ision
of a factory certified installer.
IMPORTANT
An electrical wiring diagram for the oven is located inside the machinery
compartment.
IMPORTANT
It is the c stomer's responsibility to report any concealed or non-concealed damage
to the freight company. Retain all shipping materials ntil it is certain that the
eq ipment has not s ffered concealed shipping damage.
Retain This Manual For Future Reference

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ENGLISH
SECTION 1 - DESCRIPTION ................................................... 4
I. OVEN USES ............................................................. 4
II. OVEN COMPONENTS ............................................. 4
A. Conveyor Drive Motor ....................................... 4
B. Crumb Pans ..................................................... 4
C. Conveyor End Sto ........................................... 4
D. Conveyor Rear Sto ......................................... 4
E. Conveyor ........................................................... 4
F. End Plugs ......................................................... 4
G. Eyebrows .......................................................... 4
H. Window ............................................................. 4
I. Machinery Com artment Access Panel .......... 4
J. Serial Plate ....................................................... 4
K. Control Panel .................................................... 4
L. Gas Burner or Heating Elements .................... 4
M. Blowers............................................................. 4
N. Air Fingers ........................................................ 4
III. OVEN SPECIFICATIONS ......................................... 4
A. Dimensions ...................................................... 4
B. General S ecifications ..................................... 4
C. Electrical S ecifications for PS555E Electric
Ovens ................................................................ 4
D. Electrical S ecifications for PS555G and
PS570G Gas Ovens ......................................... 5
E. Gas Orifice and Pressure S ecifications
for PS555G and PS570G Gas Ovens.............. 5
SECTION 2 - INSTALLATION.................................................. 5
I. BASE PAD KIT .......................................................... 6
II. INSTALLATION KIT .................................................. 7
III. VENTILATION SYSTEM ........................................... 7
A. Requirements .................................................. 7
B. Recommendations .......................................... 7
C. Other Ventilation Concerns .............................. 7
IV. ASSEMBLY ............................................................... 8
A. Base Pad, Legs, Casters, and Stacking ......... 8
B. Restraint Cable Installation ............................. 8
C. Conveyor Installation ........................................ 8
TABLE OF CONTENTS
V. FINAL ASSEMBLY ...................................................10
VI. ELECTRICAL SUPPLY ........................................... 10
A. Additional Information - Gas Ovens ................ 10
B. Additional Information - Electric Ovens .......... 10
C. Connection ...................................................... 10
VII. GAS SUPPLY .......................................................... 11
A. Gas Utility Rough-In Recommendations ....... 11
B. Connection ...................................................... 12
C. Gas Conversion .............................................. 12
SECTION 3 - OPERATION ..................................................... 13
I. LOCATION AND DESCRIPTION OF CONTROLS . 13
A. BLOWER ( ) Switch ...................................... 13
B. HEAT ( ) Switch ............................................ 13
C. CONVEYOR ( ) Switch ............................... 13
D. Conveyor S eed Controller ............................. 13
E. Digital Tem erature Controller ....................... 13
F. Machinery C t. Access Panel Safety Switch .. 13
II. NORMAL OPERATION, STEP-BY-STEP ................ 14
A. Daily Startu Procedures ................................ 14
B. Daily Shutdown Procedures ........................... 14
III. QUICK REFERENCE: DIGITAL TEMP CONTROL . 15
IV. QUICK REFERENCE: TROUBLESHOOTING ....... 16
SECTION 4 - MAINTENANCE ................................................. 17
I. MAINTENANCE - DAILY .......................................... 17
II. MAINTENANCE - MONTHLY ..................................18
III. MAINTENANCE - EVERY 3 MONTHS .................... 19
IV. MAINTENANCE - EVERY 6 MONTHS .................... 20
V. KEY SPARE PARTS KIT ......................................... 21
SECTION 5 - ELECTRICAL WIRING DIAGRAMS ................... 22
I. WIRING DIAGRAM, PS555G OR PS570G
GAS OVEN, 208/240V, 50/60 Hz, 1 Ph ...................22
II. WIRING DIAGRAM, PS555E ELECTRIC OVEN,
208V OR 240V, 50/60 Hz, 3 Ph .............................. 23
III. WIRING DIAGRAM, PS555E ELECTRIC OVEN,
380V OR 480V, 50/60 Hz, 3 Ph .............................. 24
page page

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SECTION 1 - DESCRIPTION
II. OVEN COMPONENTS - see Figure 1-1.
A. Conveyor Drive Mo or: Moves the conveyor.
B. Crumb Pans: Catch crumbs and other material that dro
through the conveyor belt. One crumb an is located at
each end of the conveyor.
C,D. Conveyor End S op and Rear S op: Prevent food roducts
from falling off the end or rear of the moving conveyor.
E. Conveyor: Moves the food roduct through the oven.
F. End Plugs: Allow access to the oven's interior.
G. Eyebrows: Can be adjusted to various heights to revent
heat loss into the environment.
H. Window: Allows the user to access food roducts inside
the baking chamber.
I. Machinery Compar men Access Panel: Allows access
to the oven's interior and control com onents. No user-
servicable arts are located in the machinery com art-
ment.
J. Serial Pla e: Provides s ecifications for the oven that affect
installation and o eration. Refer to Section 2, Installation,
for details.
I. OVEN USES
PS500 Series Ovens can be used to bake and/or cook a
wide variety of food roducts, such as izza, izza-ty e
roducts, cookies, sandwiches and others.
K. Con rol Panel: Location of the o erating controls for the
oven. Refer to Section 3, O eration, for details.
Not Shown:
L. Gas Burner (gas ovens) or Hea ing Elemen s (elec ric
ovens): Heat air, which is then rojected to the air fingers
by the blowers.
M. Blowers: Project hot air from the burner or heating ele-
ments to the air fingers.
N. Air Fingers: Project streams of hot air onto the food roduct.
Table 1-1: Dimensions Single Oven Double Oven Triple Oven Quad Oven
Overall Height 46-1/8 (1172mm) 60-1/8 (1527mm) 62-1/2 (1588mm) 78 (1981mm)
Overall Depth 63-3/8 (1610mm) 63-3/8 (1610mm) 63-3/8 (1610mm) 63-3/8 (1610mm)
Overall Le gth, PS555G a d PS555E 91 (2311mm) 91 (2311mm) 91 (2311mm) 91 (2311mm)
Overall Le gth, PS570G 106 (2692mm) 106 (2692mm) 106 (2692mm) 106 (2692mm)
Co veyor Width 32 (813mm) 32 (813mm) 32 (813mm) 32 (813mm)
or 2x15" (381mm) or 2x15" (381mm) or 2x15" (381mm) or 2x15" (381mm)
Recomme ded Mi imum Cleara ces
Rear of Oven (inc. rear shrouds) to Wall 6" (152mm) 6" (152mm) 6" (152mm) 6" (152mm)
Conveyor Extension to Wall (both ends) 0" (0 mm) 0" (0 mm) 0" (0 mm) 0" (0 mm)
III. OVEN SPECIFICATIONS
Figure 1-1 - Oven Componen s
C
B
A
E
F
G
H
J
I
K
D
Table 1-2: General Specifica ions PS555G PS555E PS570G
Weight 1175 lbs. (533kg) 1175 lbs. (533kg) 1400 lbs. (634kg)
Rated Heat I put 150,000 BTU 32kW 170,000 BTU
(37,800 kcal, 44 kW/hr) (42,840 kcal, 50 kW/hr)
Maximum Operati g Temperature < - - - - - - - - - - - - - - 550°F / 288°C - - - - - - - - - - - - - - >
Air Blowers Two blowers at 1400 ft.3/mi . (39.6m3/mi .) at 2050 RPM, 0.40" (1.0cm) Water Static Pressure
Average Air Jet Velocity < - - - - - - 2600 ft./mi . (1320cm/sec.) average - - - - - - >
Warmup Time < - - - - - - - - - - - - - - - - 15 mi . - - - - - - - - - - - - - - - - >
Table 1-3: Elec rical specifica ions for PS555E elec ric ovens
Main Blower Current Draw (per line) kW
Voltage Control Circuit Voltage Phase Freq L1 L2 L3 N Rating Poles Wires
208V 20V conveyor speed controller (w/transformer); 3 Ph 50/60Hz 97.4A 88.8A 97.4A -- 32kW 3 Pole 4 Wire
all other control circuits 208V (3 hot, gd)
220-240V 20V conveyor speed controller (w/transformer); 3 Ph 50/60Hz 83.0- 75.0- 83.0- -- 29.3- 3 Pole 4 Wire
all other control circuits 220-240V 90.0A 86.0A 90.0A 34.8kW (3 hot, gd)
480V 20V conveyor speed controller (w/transformer); 3 Ph 50/60Hz 38.5A 38.5A 47.7A 9.2A 32kW 4 Pole 5 Wire (3 hot,
all other control circuits 240V neut, gnd)

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SECTION 2 - INSTALLATION
NOTE: All aspects of the oven installation, including placement, utility connections, and ventilation requirements, must
conform with any applicable local, national, or international codes. These codes supercede the requirements and
guidelines provided in this manual.
NOTE: In the USA, the oven installation must conform with local codes. In the absence of local codes, gas oven
installations must conform with the National uel Gas Code, ANSI Z223.1. Gas and electric ovens, when installed, must
be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code
(NEC), or ANSI/N PA70.
NOTE: In Canada, the oven installation must conform with local codes. In the absence of local codes, gas oven
installations must conform with the Natural Gas Installation Code, CAN/CGA-B149.1, or the Propane Gas Installation
Code, CAN/CGA-B149.2, as applicable. Gas and electric ovens, when installed, must be electrically grounded in
accordance with local codes, or in the absence of local codes, with the Canadian Electrical Code CSA C22.2.
NOTE: In Australia, the oven installation must conform with any requirements of the appropriate statutory authority. Gas
oven installtions must conform with AGA Code, AG601.
WARNING - After any con ersions, readjustments, or ser ice work on the o en:
 Perform a gas leak test.
 Test for correct air supply, particularly to the
burner blower.
Table 1-4: Elec rical specifica ions for PS555G and PS570G gas ovens
Main Blower Voltage Control Circuit Voltage Phase Freq Current Draw Poles Wires
208-240V 20V conveyor speed controller (w/transformer); Ph 50/60Hz 2A 2 Pole 3 Wire (2 hot, gd)
all other control circuits 208/240V
Table 1-5: Gas orifice and pressure specifica ions for PS555G and PS570G gas ovens
Main Orifice .D. Main Orifice .D. Orifice (Manifold)
Gas Type PS555G PS570G Pilot Orifice .D. Supply ( nlet) Pressure Pressure
Natural 0.228 (5.79mm) 0.250" (6.35mm) 0.028 (0.7 mm) 6- 2 W.C. ( 4.9-29.9mbar) 3.5 W.C. (8.7mbar)
Propane 0. 4  (3.58mm) 0. 52" (3.86mm) 0.0 8 (0.46mm) - 4 W.C. (27.4-34.9mbar) 0 W.C. (24.9mbar)
IMPORTANT - Addi ional elec rical informa ion is provided on he oven's serial pla e, and on he wiring diagram inside
he machinery compar men .
 Test for proper combustion and gas supply.
 Check that the entilation system is in operation.
CAUTION: To reduce the risk of fire, the appliance is to be mounted on floors of noncombustible
construction with noncombustible flooring and surface finish and with no combustible material against the
underside thereof, or on noncombustible slabs or arches ha ing no combustible material against the
underside thereof, such construction shall in all cases extend not less than 12 inches (304.8mm) beyond the
equipment on all sides.
WARNING - Keep the appliance area free and clear of combustibles.
WARNING - The o en must be installed on an e en (le el) non-flammable flooring and any adjacent walls
must be non-flammable. Recommended minimum clearances are specified in the Description section of
this Manual.
WARNING - Do not obstruct the flow of combustion and entilation air to and from your o en. There must
be no obstructions around or underneath the o en. Constructional changes to the area where the o en is
installed shall not affect the air supply to the o en.
CAUTION - For additional installation information, contact your local Authorized Ser ice Agent.
NOTE - There must be adequate clearance between the o en and combustible construction. Clearance
must also be pro ided for ser icing and for proper operation.
NOTE - An electrical wiring diagram for the o en is located inside the machinery compartment.

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SECTION 2 - INSTALLATION
Fig. 2-1 - Base Pad Ki
I. BASE PAD KIT - see Figure 2-1
NOTE: One Base Pad Ki is required for each Single, Double, Triple, or Quad Oven ins alla ion.
Quantity
Single oven Double oven Double oven Triple oven Triple oven Quad oven
with 19" leg with 10" leg with 15" leg with 4" leg without leg with
Item extensions extensions extensions extensions extensions outriggers art No. Description
1a 4 -- -- -- -- -- 37210-0060 Leg extension, 19 (483mm)
1b -- 4 -- -- -- -- 37210-0082 Leg extension, 10 (254mm)
1c -- -- 4 -- -- -- 37210-0057 Leg extension, 15 (381mm)
1d -- -- -- 4 -- -- 39684 Leg extension, 4" (102mm)
2 -- -- -- -- -- 4 45209 utrigger
3 -- -- -- -- -- 4 45205 Spacer, caster - for use with outrigger only
4a44444--37115-0102 Caster, swivel (with stud)
4b -- -- -- -- -- 2 45357 Caster, swivel (with flat plate)
4c -- -- -- -- -- 2 45664 Caster, swivel (with flat plate and brake)
5a44444--22450-0028 Adjustable foot, standard
5b -- -- -- -- -- 4 45206 Adjustable foot, quad ovens
611111122450-0253 Restraint cable, 60 (1524mm)
711111121392-0005 Eye bolt/lag screw
8111111 41643 Base pad
--222222 41582 Top cover (right or left)
--88888821256-0069 Screw, sl trus hd #10-32 X 1-1/4
-- 16 16 16 16 -- 8 21216-0018 Bolt, hex cap 1/2"-13 X 1-1/4
-- 16 16 16 16 -- 8 21416-0003 Flat washer, 1/2
-- 16 16 16 16 -- 8 21426-0004 Lock washer, 1/2
-- -- -- -- -- -- 16 A27727 Bolt, hex cap 3/8"-16 X 1
-- -- -- -- -- -- 32 A21924 Flat washer, 3/8
-- -- -- -- -- -- 16 21172-0004 Lock nut, hex, 3/8"-16
1
2
3
4a
10
11
12
13
6
7
8
ADDITIONAL COMPONENTS FOR GAS OVENS:
911111133120-0056 Gas pipe, 1-1/4 dia. X 54 (1372mm) L
1022222227271-0004 Pipe clamp, 1-1/2
1122222233120-0055 Pipe nipple, 1-14 dia. X 3 (76mm) L, NPT
1222222223122-0007 Elbow, 90°, 1-1/4 dia.
1311111122361-0003 Gas hose, 1-1/4 dia. X 72 (1829mm) L
--22222221292-0001 Screw, hex wshr hd #10-16 X 3/4
4b
4c
5a
5b
9

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ENGLISH
18 (458mm)
minimum
(Typical - both
ends of oven)
3 (76mm)
minimum
8 ( 03mm)
minimum
 (51mm)
minimum
Fig. 2-3 - Ven ila ion Sys em
34
2
15
CODES SUPERSEDE THE RECOMMENDATIONS SHOWN IN
THIS MANUAL.
The rate of air flow exhausted through the ventilation system
may vary de ending on the oven configuration and hood design.
Consult the hood manufacturer or ventilation engineer for these
s ecifications.
To avoid a negative ressure condition in the kitchen area,
return air must be brought back to re lenish the air that was
exhausted. A negative ressure in the kitchen can cause heat-
related roblems to the oven com onents as if there were no
ventilation at all. The best method of su lying return air is
through the heating, ventilation and air conditioning (HVAC)
system. Through the HVAC system, the air can be tem erature-
controlled for summer and winter. Return air can also be
brought in directly from outside the building, but detrimental
effects can result from extreme seasonal hot and cold
tem eratures from the outdoors.
NOTE: Return air from the mechanically driven system must not
blow at the opening of the baking chamber. Poor oven baking
performance will result.
C. O her ven ila ion concerns
 S ecial locations, conditions, or roblems may require the
services of a ventilation engineer or s ecialist.
 Inadequate ventilation can inhibit oven erformance.
 It is recommended that the ventilation system and duct
work be checked at revailing intervals as s ecified by the
hood manufacturer and/or HVAC engineer or s ecialist.
A. Requiremen s
CAUTION
Gas oven installations RE UIRE a mechanically driven
ventilation system with electrical exhaust air sensing control.
A mechanically driven ventilation system is STRONGLY
RECOMMENDED for electric oven installations.
PROPER VENTILATION OF THE OVEN IS THE
RESPONSIBILITY OF THE OWNER.
B. Recommenda ions
NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIGURE 2-
3 ARE
RECOMMENDATIONS ONLY. LOCAL, NATIONAL, AND
INTERNATIONAL CODES MUST BE FOLLOWED WHEN
INSTALLING THE VENTILATION SYSTEM. ANY APPLICABLE
III. VENTILATION SYSTEM
IMPORTANT
Where national or local codes require the
installation of fire suppression equipment or
other supplementary equipment, DO NOT mount
the equipment directly to the o en.
MOUNTING SUCH EQUIPMENT ON THE OVEN MAY:
 VOID AGENCY CERTIFICATIONS
 RESTRICT SERVICE ACCESS
 EAD TO INCREASED SERVICE EXPENSES
FOR THE OWNER
Fig. 2-2 - Ins alla ion Ki
II. INSTALLATION KIT - see Figure 2-2
NOTE: One Ins alla ion Ki is required for each oven cavi y.
Item Qty. Part No. Description
1 1 35900-0148 Co veyor Rear Stop
2 1 35000-1103 Co veyor E d Stop
3 1 46450 Ow er's Operati g & I stallatio Ma ual
4 1 1002040 Authorized Service Age cy Listi g
ADDITIONAL CO PONENTS FOR GAS OVENS:
5 1 33120-0053 Gas Pipe Nipple
SECTION 2 - INSTALLATION

8
ENGLISH
SECTION 2 - INSTALLATION
IV. ASSEMBLY
A. Base Pad, Legs, Cas ers, and S acking
NOTE: O tional Stacking Lift Kit (P/N 30580)
The Stacking Lift Kit, P/N 30580, is available separately. This
Kit provides a complete lift adapter set, specifically designed for
stacking PS500 Series oven cavities. The Kit includes an
instructional videotape.
1. Install the to anels in lace on the to oven cavity. Follow
the instructions rovided with the to anels.
2a. Legs/Casters Installation (Standard) - Single Ovens, Double
Ovens, and Triple Ovens with Leg Extensions
 Install one leg extension to each corner of the base ad
using the su lied 1/2"-13x1-1/4" bolts, 1/2" flat
washers, and 1/2" lockwashers. See Figure 2-4.
 Install one adjustable foot and one caster into the
holes on the bottom of the leg extension. The adjustable
foot should be installed into the OUTSIDE hole (closest
to the front or rear face of the oven). The caster should
be installed into the INSIDE hole.
2b. Legs/Casters Installation - Triple Ovens Without Leg
Extensions
Install one adjustable foot and one caster into the 3/4"
holes on the bottom of the base ad. The adjustable foot
should be installed into the OUTSIDE hole (closest to the
front or rear face of the oven). The caster should be installed
into the INSIDE hole. See Figure 2-5.
2c. Legs/Casters Installation - uad Ovens
 Install one outrigger to each corner of the base ad
using the su lied 1/2"-13x1-1/4" bolts, 1/2" flat
washers, and 1/2" lockwashers. See Figure 2-6.
 Install the s acer lates and casters onto the outriggers
using the 3/8"-16x1" screws, 3/8" flat washers, and
3/8"-16 hex nuts su lied in the Installation Kit. The
two locking casters should be installed on the front
side of the oven.
 Install the adjustable feet into the holes on the
underside of the outrigger assembly.
3. Install the base ad onto the lower oven cavity. Check that
the eyebolt welded onto the ad faces the rear of the oven.
4. Stack the oven cavities. If necessary, refer to the instructional
videota e rovided with the Stacking Lift Kit (P/N 30580).
B. Res rain Cable Ins alla ion
Because the oven is equi ed with casters, a restraint cable
assembly must be installed to limit the movement of the
a liance without de ending on the connector and the quick
disconnect device or its associated i ing. One end of the cable
is anchored to the eyebolt on the rear surface of the oven's base
ad, while the other is anchored to the wall. See Figure 2-7.
After connecting the restraint cable, move the oven to its final
location. Adjust the bottom (hex) sections of the feet so that the
casters are off the floor. For quad ovens, lock the two front
casters.
C. Conveyor Ins alla ion
NOTE
Split belt conveyors can only be installed from the end of the
oven with the drive motor.
Single-belt conveyor assemblies may be inserted into either
end of the oven. If it is to be installed from the end of the oven
without the drive motor, the drive sprocket assembly must be
removed.
Figure 2-4 - Legs and Cas ers - S andard
Front or Rear
of oven
Left or Right Side
of oven
1/ "
flat washer
Foot uses OUTSIDE
hole (closest to front
or rear of oven)
Caster
uses
INSIDE
hole
Figure 2-6 - Legs and Cas ers for Quad Oven
1/ "
lock
washer
1/ "-13 x 1-1/4"
hex screw
1/ " flat
washer
1/ " lock
washer
1/ "-13 x 1-1/4"
hex screw
3/8"-16 x 1"
hex screw
3/8" flat
washer
Locking casters:
FRONT of oven
Non-locking
casters:
REAR of oven
Front or Rear
of oven
Left or Right Side
of oven
Adjustable
foot
3/8"-16
hex lock nut
3/8" flat
washer
Figure 2-5 - Legs and Cas ers for Triple Oven
Wi hou Leg Ex ensions
Spacer
plate
Front or Rear
of oven
Left or Right Side
of oven
Foot uses OUTSIDE
hole (closest to front
or rear of oven)
Caster
uses
INSIDE
hole
Locking
caster
shown
Outrigger

9
ENGLISH
SECTION 2 - INSTALLATION
Figure 2-10 - Checking he conveyor ension
3-4" (75-100mm)
vertical deflection
Conveyor
tension
adjustment
screws (idler
end only)
Eyebolt in
base pad
Rear surface
of oven base
pad
Restraint cable
assembly
3/4 (19mm)
eyebolt
Wall of
structure
Figure 2-7 - Ins alling he Res rain Cable
Figure 2-9 - Inser ing he Conveyor
1
2
3
Figure 2-8 - Removing he Conveyor Drive Sprocke
Loosen conveyor collar
set screw, then pull
sprocket straight out
Figure 2-11 - Conveyor and Mas er Link Orien a ion
Direction
of travel
Outside master link
orientation
CORRECT
master link
position
Incorrect
master link
position
To remove the drive sprocket (if necessary), loosen the set
screw on the conveyor collar as shown in Figure 2-8. Then, pull
the sprocket assembly straight out.
1. Lift the conveyor and osition it in the oven. See Figure 2-9.
2. Continue moving the conveyor into the oven until the frame
rotrudes equally from each end of the oven (about 18"/
457mm).
3. Check that the retainers located on the underside of the
conveyor frame rest firmly against the lower end lugs, as
shown in Figure 2-9.
4. When the conveyor is ositioned ro erly, check for free-
dom of movement of the conveyor belt by ulling it for about
2-3 feet (60 to 90 cm) with your fingers. The conveyor must
move freely.
5. If the drive s rocket was removed when installing the
conveyor, re lace it at this time.
6. Install the drive chain between the conveyor drive s rocket
and the motor s rocket. To install the chain, it will be
necessary to lift the drive end of the conveyor slightly.
7. Install the conveyor drive motor cover.
8. Check the tension of the conveyor belt as shown in Figure
2-10. The belt should lift between 3-4" (75-100mm). DO
NOT OVERTIGHTEN THE CONVEYOR BELT.
NOTE:
If necessary, the belt tension can be adjusted by turning the
conveyor adjustment screws, located at the idler (right) end
of the conveyor. See Figure 2-10.
9. If necessary, links can be added to or removed from the
conveyor belt to achieve the correct deflection of 3-4" (75-
100mm). If links must be removed from the belt, it can be
reattached to the conveyor as follows:
a. The conveyor belt links must be oriented as shown in
Figure 2-11.
b. The smooth side of the conveyor belt must face UP.
c. Connect the inside master links. Check that the links
are oriented as shown in Figure 2-11.
d. Connect the outside master links. Note that the
outside master links have right and left sides. The
right-side master link has an o en hook facing you, as
shown in Figure 2-11.
e. Check for freedom of movement of the conveyor belt by
ulling it for about 2-3 feet (60 to 90 cm) with your
fingers. The conveyor must move freely.
f. Return to Ste 8, above, to re-check the belt tension.
Inside master link
orientation
Retainer
4
End plug

10
ENGLISH
Figure 2-12 - Crumb rays
Swing outside
edge of tray
up and into
place
Place inside
edge of tray on
retainer bracket
SECTION 2 - INSTALLATION
VI. ELECTRICAL SUPPLY
WARNING
Au horized supplier personnel normally accomplish
he connec ions for he ven ila ion sys em, elec ric supply,
and gas supply, as arranged by he cus omer. Following
hese connec ions, he fac ory-au horized ins aller can
perform he ini ial s ar up of he oven.
NOTE: The electric supply installation must satisfy the
requirements of the appropriate statutory authority, such as the
National Electrical Code (NEC), ANSI/NFPA70, (U.S.A.); the
Canadian Electrical Code, CSA C22.2; the Australian Code
AG601; or other applicable regulations.
NOTE: The electric supply connection must meet all national
and local electrical code requirements.
Check the oven serial late before making any electric su ly
connections. Electric su ly connections must agree with data
on the oven serial late. The location of the serial late is shown
in Figure 1-1 (in Section 1, Descri tion).
A fused disconnect switch or a main circuit breaker (customer
furnished) MUST be installed in the electric su ly line for each
oven cavity. It is recommended that this switch/circuit breaker
have lockout/tagout ca ability.
The su ly conductors must be of the size and material (co -
er) recommended. Refer to the wiring diagram inside the
machinery com artment of the oven. Electrical s ecifications
are also listed on the oven's serial late and in Table 1-4,
Electrical S ecifications (in Section 1, Descri tion).
The oven requires a ground connection to the oven ground
screw. For gas ovens, the ground screw is located in the
electrical junction box (see Figure 2-13). For electric ovens, the
ground screw is located inside the side com artment of the
oven (see Figure 2-14). If necessary, have the electrician su ly
the ground wire. Do NOT use the wiring conduit or other piping
for ground connections!
V. FINAL ASSEMBLY
1. Install the crumb trays underneath the conveyor as shown
in Figure 2-12. First, lace the inside edge of the tray onto
the retainer (shown in Figure 2-9). Then, swing the outside
edge of the tray u and into lace.
2. Press the conveyor end sto and rear sto down over the
edge of the conveyor frame. See Figure 1-1 (in Section 1,
Descri tion).
A. Addi ional Informa ion - Gas Ovens
Incoming electrical ower lines are fed through the strain-
relief fitting, shown in Figure 2-13. The electrical su ly
connections are made inside the electrical junction box.
The ower lines then connect to the oven circuits through
safety switches located inside the machinery com art-
ment and each blower motor com artment. These switches
interru t electric ower to the oven when the Machinery
Com artment Access Panel is o ened, OR when either of
the blower or rear shrouds is removed.
B. Addi ional Informa ion - Elec ric Ovens
A 2" (51mm) dia. cutout in the back wall of the machinery
com artment rovides access to the electrical su ly
connections. The actual wiring connections are made at
the terminal block located inside the side com artment of
the oven.
Using flexible cables for the electric ower su ly
conductors requires a 2" (51mm) strain-relief fitting (not
furnished with the oven) to enable safe access to the
terminal block.
C. Connec ion
Refer to the wiring diagram inside the machinery
com artment of the oven to determine the correct
connections for the electrical su ly lines. Connect the
su ly as indicated on the wiring diagram.
CAUTION
The terms of the oven's warranty require all start-ups, conver-
sions and service work to be performed by a Middleby Marshall
Authorized Service Agent.