Middleby Marshall Ps536 Series Users Manual

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Middleby
Marshall

PS536-Series Electric Ovens: English

A MIDDLEBY COMPANY

owner's
operating
& installation

manual
PS536-Series OVENS
Model PS536ES

PS536ES (Double)

PS536ES (Single)

PS536ES (Triple)

Part No. 58367
Price $30.00
P: 08/08 Rev. B

WARNING
FOR YOUR SAFETY, DO NOT STORE OR USE
GASOLINE OR OTHER FLAMMABLE VAPORS AND
LIQUIDS 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, operation, and maintenance
instructions thoroughly before installing or servicing this
equipment.

NOTICE
The warranty is NOT VALID unless the oven is installed, started, and
demonstrated under the supervision of a factory-authorized installer.

NOTICE
Contact your authorized Service Agency to perform maintenance and
repairs. A Service Agency Directory is supplied with your oven.

NOTICE
Using any parts other than genuine Middleby Marshall factory-manufactured
parts relieves the manufacturer of all warranty and liability.

NOTICE
Middleby Marshall (Manufacturer) reserves the right to
change specifications at any time.

KEEP THIS MANUAL IN A VISIBLE LOCATION NEAR THE OVEN
FOR FUTURE REFERENCE.

Model No.
Modéle No.

Serial No.
Serié No.

Installation Date
Date d'installation

MIDDLEBY MARSHALL
NO QUIBBLE LIMITED WARRANTY
(U.S.A. ONLY)

MIDDLEBY MARSHALL INC.
OVEN LIMITED WARRANTY
(Non U.S.A.)
The Seller warrants equipment manufactured by it to be free from
defects in material and workmanship for which it is responsible. The
Seller’s obligation under this warranty shall be limited to replacing or
repairing, at Seller’s option, without charge, F.O.B. Seller’s factory,
any part found to be defective and any labor and material expense
incurred by Seller in repairing or replacing such part. Such warranty
is limited to a period of one year from date of original installation or
15 months from date of shipment from Seller’s factory, whichever is
earlier, provided that terms of payment have been fully met. All labor
shall be performed during regular working hours. Overtime premium
will be charged to the Buyer.

MIDDLEBY MARSHALL, HEREINAFTER REFERRED TO AS
“THE SELLER”, WARRANTS EQUIPMENT MANUFACTURED
BY IT TO BE FREE FROM DEFECTS IN MATERIAL AND
WORKMANSHIP FOR WHICH IT IS RESPONSIBLE. THE
SELLER’S OBLIGATION UNDER THIS WARRANTY SHALL
BE LIMITED TO REPLACING OR REPAIRING, AT SELLER’S
OPTION, WITHOUT CHARGE, ANY PART FOUND TO BE
DEFECTIVE AND ANY LABOR AND MATERIAL EXPENSE
INCURRED BY SELLER IN REPAIRING OR REPLACING
SUCH PART. SUCH WARRANTY SHALL BE LIMITED TO
THE ORIGINAL PURCHASER ONLY AND SHALL BE EFFECTIVE FOR A PERIOD OF ONE YEAR FROM DATE OF ORIGINAL INSTALLATION, OR 18 MONTHS FROM DATE OF PURCHASE, WHICHEVER IS EARLIER, PROVIDED THAT TERMS
OF PAYMENT HAVE BEEN FULLY MET.

This warranty is not valid unless equipment is installed, started,
and demonstrated under the supervision of a factory-authorized installer.
Normal maintenance functions, including lubrication, adjustment of
airflow, thermostats, door mechanisms, microswitches, burners
and pilot burners, and replacement of light bulbs, fuses and indicating lights, are not covered by warranty.

This warranty is valid only if the equipment is installed, started,
and demonstrated under the supervision of a factory-authorized installer.

Any repairs or replacements of defective parts shall be performed by
Seller’s authorized service personnel. Seller shall not be responsible for any costs incurred if the work is performed by other than
Seller’s authorized service personnel.

Normal maintenance functions, including lubrication, cleaning, or customer abuse, are not covered by this no quibble
warranty.

When returning any part under warranty, the part must be intact and
complete, without evidence of misuse or abuse, freight prepaid.

Seller shall be responsible only for repairs or replacements
of defective parts performed by Seller’s authorized service
personnel. Authorized service agencies are located in principal cities throughout the contiguous United States, Alaska,
and Hawaii. This warranty is valid in the 50 United States
and is void elsewhere unless the product is purchased
through Middleby International with warranty included.

Seller shall not be liable for consequential damages of any kind
which occur during the course of installation of equipment, or which
result from the use or misuse by Buyer, its employees or others of
the equipment supplied hereunder, and Buyer’s sole and exclusive
remedy against Seller for any breach of the foregoing warranty or
otherwise shall be for the repair or replacement of the equipment or
parts thereof affected by such breach.

The foregoing warranty is exclusive and in lieu of all other
warranties, expressed or implied. There are no implied
warranties of merchantability or of fitness for a particular purpose.

The foregoing warranty shall be valid and binding upon Seller if and
only if Buyer loads, operates and maintains the equipment supplied
hereunder in accordance with the instruction manual provided to
Buyer. Seller does not guarantee the process of manufacture by
Buyer or the quality of product to be produced by the equipment
supplied hereunder and Seller shall not be liable for any prospective
or lost profits of Buyer.

The foregoing shall be Seller’s sole and exclusive obligation
and Buyer’s sole and exclusive remedy for any action, including breach of contract or negligence. In no event shall
Seller be liable for a sum in excess of the purchase price of
the item. Seller shall not be liable for any prospective or lost
profits of Buyer.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF
ALL OTHER EXPRESS AND IMPLIED WARRANTIES WHATSOEVER. SPECIFICALLY THERE ARE NO IMPLIED WARRANTIES
OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR
PURPOSE.

This warranty is effective on Middleby Marshall equipment sold on, or after, February 15, 1995.

The foregoing shall be Seller’s sole and exclusive obligation and
Buyer’s sole and exclusive remedy for any action, whether in breach
of contract or negligence. In no event shall seller be liable for a sum
in excess of the purchase price of the item.

© 2005 - Middleby Marshall, A Middleby Company.
The Middleby Marshall logo is a registered trademark of Middleby Marshall, A Middleby Company.
Middleby Marshall Inc. • 1400 Toastmaster Drive • Elgin, Illinois 60120-9272 U.S.A. • (847) 741-3300 • FAX: (847) 741 4406

iii

TABLE OF CONTENTS

TABLE OF CONTENTS
(Continued)

Page
SECTION 1
I. MODEL IDENTIFICATION .............................................. 1
SERIES PS536 ELECTRICAL SPECIFICATIONS ............. 2
II. PRINCIPLE OF AIR FLOW ............................................. 3
A. Heat Transfer and How It Works .............................. 3
II. PRINCIPLE OF AIR FLOW (Continued) ........................ 4
B. Air Fingers ................................................................. 4
III. COMPONENT FUNCTION ............................................ 5
A. Conveyor Motor and Conveyor Belt ........................ 6
B. Blower Fan ................................................................. 6
C. Electric Heaters ........................................................ 6
D. Window ....................................................................... 6
E. Cooling Fan ................................................................ 7
F. Air Fingers and Blank Plates - See Figure 1-9 ......... 8
SECTION 2
I. UNLOADING ................................................................... 9
PS536 OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT ........................ 10
PARTS LIST FOR SERIES PS536 ELECTRIC OVEN
INSTALLATION KIT .................................................. 10
PARTS LIST FOR PS536 SERIES SINGLE OVEN
OPTION - BASE W/15″″ LEGS & TOP P/N 34832 ..... 11
PARTS LIST FOR PS536 SERIES DOUBLE OVEN
OPTION - BASE W/6″″ LEGS,
CASTERS & TOP P/N 34833 .................................... 12
PARTS LIST FOR PS536 SERIES TRIPLE OVEN
OPTION - BASE w/OUTRIGGERS & TOP
P/N 34831 ................................................................... 13
RESTRAINT CABLE INSTALLATION .......................... 16
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS536-SERIES OVENS .................................... 17
CIRCUIT BREAKER ..................................................... 17
ELECTRICAL SPECIFICATIONS ................................. 17
ELECTRICAL RATING ................................................. 17
SUPPLY WIRE .............................................................. 17
SUGGESTED ................................................................ 17
II. VENTILATION GUIDELINES ....................................... 18
VENTILATION HOOD ................................................... 18
VENTILATION CAPTURE TEST ................................... 18
III. ELECTRICAL CONNECTION INFORMATION FOR
PS536-SERIES OVENS. ........................................... 19
IV. ELECTRIC SUPPLY FOR ELECTRIC-HEATED
OVENS ....................................................................... 19
VI. CONVEYOR REAR STOP AND
END STOP INSTALLATION ...................................... 20
SECTION 3 INSTALLATION
I. CONTROL FUNCTIONS ................................................ 21
II. COMPONENT INFORMATION AND LOCATION ......... 22
A. Door Safety Switch .................................................. 22
B. Blower Switch .......................................................... 22
C. Heat Switch .............................................................. 22
D. Temperature Controller .......................................... 22
E. Conveyor ................................................................. 23
MEASURING CONVEYOR SPEED. ............................. 23
III. STEP-BY-STEP OPERATION ..................................... 24
A. Startup Procedures ................................................. 24

Page
Daily Startup ................................................................. 24
Power Failure ............................................................... 24
B. Shutdown Procedure ............................................... 24
A.Daily Startup Procedure .......................................... 26
IV. NORMAL OPERATION - STEP-BY-STEP .................. 26
V. QUICK REFERENCE: TROUBLESHOOTING ............. 28
SECTION 4 MAINTENANCE
I. MAINTENANCE - DAILY ........................................... 30
A. Exterior .................................................................... 30
B. Cooling Fan .............................................................. 30
C. Conveyor Belt ......................................................... 30
D. Crumb Pans ............................................................ 30
E. Window .................................................................... 30
II. MAINTENANCE - MONTHLY ...................................... 31
A. Removing Conveyor From Oven For Cleaning .... 31
B. Air Fingers Disassembly For Cleaning ................. 33
C. Cleaning the Window .............................................. 34
D. Reassembly of Air Fingers .................................... 34
E. Reinstall End Plugs ................................................. 37
F. Conveyor Reassembly Into Oven .......................... 38
G. Checking Conveyor Belt Tension ......................... 38
H. Conveyor Belt Link Removal ................................ 39
I. Replacing Conveyor Belt ......................................... 40
J. Attaching Drive Chain ............................................ 40
III. MAINTENANCE - EVERY 3 MONTHS ........................ 41
A. Cleaning the Blower/Fan Motor ............................. 41
B. Electrical Terminals ............................................... 42
C. Ventilation ............................................................... 42
D. Checking the Blower/Fan Belt ............................... 42
E. Blower Fan Shaft Bearing Lubrication .................. 43
F. Split-belt Conveyor Shaft Cleaning ........................ 43
IV. MAINTENANCE - EVERY 6 MONTHS .................... 44
PS540-SERIES ELECTRIC OVEN KEY SPARE
PARTS ....................................................................... 46
KEY SPARE PARTS KIT .............................................. 46
SECTION 5 TROUBLESHOOTING
Troubleshooting Charts ..................................................... 47
SECTION 6 - PARTS LIST
OVEN PANELS, WINDOW AND LEGS ............................ 51
CONTROL PANEL ........................................................... 53
BLOWER AND SHROUD ................................................. 55
CONVEYOR ...................................................................... 57
SPLIT BELT CONVEYOR ................................................. 59
MACHINERY COMPARTMENT ....................................... 61
SECTION 7 ELECTRICAL SCHEMATICS
Wiring Diagram, E208-240 50/60, 3PH 4W PS536 ........ 63
Wiring Diagram, E380-480 50/60, 3PH 5W PS536 ........ 64
Wiring Diagram, E380V 50/60, 3PH 5W PS536 .............. 65

NOTE
Wiring Diagrams are in Section 7 of this Manual.
The diagram for each oven is also on the lower
inner surface of its Control Console.

SECTION 1
DESCRIPTION

SECTION 1
DESCRIPTION
I.

MODEL IDENTIFICATION

The Middleby Marshall PS536ES-Series may be used
either as a single oven or stacked for use as double or triple
ovens. The major difference between the oven models in
this series is the width of the conveyor.
A single PS536ES-Series Oven (Figure 1-1) is mounted on
a base pad with legs and casters. A double oven (Figure 12) consists of two, stacked, single ovens. A triple oven
(Figure 1-3) consists of three stacked single ovens. The
lower oven is mounted on a base pad with short legs and
casters.

Figure 1-1. Single PS536ES Oven

On a double or triple oven, the ovens operate completely
independent. All ovens use identical controls and components. One oven can be cleaned or serviced, while the
others are operating.

Figure 1-2. Double PS536ES Oven

Figure 1-3. Triple PS536ES Oven
1

SECTION 1
DESCRIPTION
PS536ES SERIES OVEN SPECIFICATIONS
Table 1-1: Dimensions
Overall Height:

single oven with 17-1/2" (446mm) legs

43-1/2" (1105mm)

double oven with standard 17-1/2" (446mm) legs

63" (1600mm)

double oven with optional 20-1/2" (521mm) legs

66" (1676mm)

double oven with optional 25-1/2" (648mm) legs

71" (1803mm)

triple oven with 6" (152mm) legs

71" (1803mm)
46" (1168mm)

with standard 60"/1524mm conveyor

61" (1549mm)

with optional 56"/1422mm conveyor

57" (1447mm)

with optional 76"/1930mm conveyor

77" (1956mm)

Overall Depth:
Overall Length:

Baking Chamber Length

36" (914mm)

Conveyor Width: Single Belt

20" (508mm)

Split Belt

2 x 9-1/2" (241mm)
56" (1422mm) or 60" (1524mm) or 76" (1930mm)

Conveyor Length
Recommended Minimum Clearances:
Rear of oven to wall

3" (76mm)

Control end of conveyor to wall

1" (25.4mm)

Non-control end of oven to wall

1" (25.4mm)

Table 1-2: General specifications (per oven cavity)
Weight

400 lbs. (182kg)

Rated Heat Input:

17 kW/hr.

Maximum Operating Temperature

550°F (288°C)

Warmup Time

25 minutes

SERIES PS536ES ELECTRICAL SPECIFICATIONS
Main Blower &
Elements Voltage

Control Circuit
Voltage

Phase

Frequency

Amperage
Draw

Poles

Wires

208-240V

3 Ph

50/60 Hz

60 Amp

4 Pole

4 Wire
(3 hot, 1 grd)

Voltage
Voltage
208
208
240
240
380-400V

208-240V

Voltage
380-400
400V

3 Ph

50/60 Hz

HEATER AMPERAGE
kW
L1
L2
Voltage
kW
Amp
17-18.8
27.0-29.8
25.8-28.6
380-400 27-29.9 40-44

208-240V

Voltage
480

HEATER AMPERAGE
AMPERAGE
kW
L1
L2
L3
27 kW 75 L1
49.4
49.4
47.2
27 17
17
42.1
42.1
40.9

Voltage
kW
40017

3 Ph

50/60 Hz

HEATER AMPERAGE
kW
Amp
L1
L2
27
21.6
20.4

60 Amp

L3
25.8-28.6

N
1.2

NOTE
Wiring Diagrams are contained in Section 7 of this Manual
and are also located inside the oven at the
bottom of the Control Panel
This Manual Must Be Kept For Future Reference

5 Wire
(3 hot, 1neut, 1 grd)

4 Pole

5 Wire
(3 hot, 1neut, 1 grd)

N
1.2

60 Amp

L3
20.432.5

4 Pole

SECTION 1
DESCRIPTION
II. PRINCIPLE OF AIR FLOW
The fan-style blower draws air into the oven plenum where
it is heated. The blower then pushes the hot air through the
air fingers into the baking chamber. Each air finger
contains an inner plate and outer plate that form the hot air
into jets, distributing it across a conveyor belt on which the
food product rides. Air is then pulled back into the blower
and the process continues. The curving, black arrows of
Figure 1-4 show this air flow.

PS536ES-Series Oven is light in color: To reflect more
heat back onto the food product.

A. Heat Transfer and How It Works

Each PS536ES-Series Oven has a large fan-style blower
to move the hot air through the air fingers and onto the
product to cook/bake the food product most efficiently.

Convection: This path has to do with moving a volume of
air. It explains why hot air rises and cooler air replaces hot
air. An industrial application of this principle is to incorporate a fan to force the hot air movement, which in turn
increases the heat transfer to the food product.

1. Heat constantly moves from a warm object to a cold
object. Heat moves using three different paths: Conduction; Radiation; and Convection.

2. Temperature is the intensity of heat at the point where
it is sensed. As discussed above, heat flows by conduction, radiation and convection. The speed at which the heat
flows is determined by the temperature difference between
the oven and the food product. The larger the difference,
the faster the heat flows to the item that is being baked.

Conduction: This path utilizes surface-to-surface contact. The pizza dough in contact with the pan is a good
example of conduction.
Radiation: This path has to do with objects radiating heat.
Dark objects absorb heat whereas light or shiny objects
reflect more heat. This is the reason that the inside of a

Upper Air Fingers

Conveyor Belt(s)

Window

Lower Air Fingers

Figure 1-4. PS536ES-Series Oven Air Flow

SECTION 1
DESCRIPTION
II. PRINCIPLE OF AIR FLOW (Continued)
B. Air Fingers
Series ovens used to bake pizza have four bottom fingers
and two top fingers. For special product baking requirements, a number of other styles of fingers and finger
arrangements are available from the factory.

The PS536ES-Series Ovens are conveyorized ovens that
employ vertical jets of hot air streaming from air fingers
(Figure 1-5) to give uniform, intense heating. The vertical
streams of hot air provide an exceptional heat transfer rate
and generally bake faster and at lower temperatures than
convection hot air or infrared heating ovens.

NOTE: Some customers have a predetermined finger
arrangement. If you have any questions pertaining to the
finger arrangement, please call the factory.

A PS536ES-Series Oven can accommodate up to four
bottom air fingers and four top air fingers. Some PS536ES-

Manifold
Air Flow
From Plenum

Manifold Baffle

Outer Plate

Inner Plate

High Velocity
Columns of Air
on Food Product

Air Flow
From Plenum

Manifold Baffle

Inner Plate
Outer Plate
Manifold

Figure 1-5. Air Fingers, Showing High-Velocity Columns of Air Formed During Passage Through
the Inner Plate and Outer Plate to Heat the Food Product.

SECTION 1
DESCRIPTION
III. COMPONENT FUNCTION (Figure 1-6)

Figure 1-6. PS536ES-Series Oven Components Locations

SECTION 1
DESCRIPTION
III. COMPONENT FUNCTION
A. Conveyor Motor and Conveyor Belt
The conveyor belt is driven by a variable-speed electric
motor (Figure 1-7) operating through a gear reducer. The
motor speed is controlled by a digital control. The stainless-steel wire belt can travel in either direction at variable
rates ranging from 3 minutes to 30 minutes; this is the time
that a product can take to pass through the oven.
B. Blower Fan
The blower fan is located at the rear of the oven. This
blower forces heated air through the air fingers. The
BLOWER/Heat switch must be set to “ON” or “I” for oven
warmup and baking.
C. Electric Heaters
There is one heater element mounted on the inside of the
left panel. The element is connected to an electrical
control which is energized by the temperature controller.
If the pilot flame does not light or a loss of flame occurs,
the main gas valve closes.
The main burner gas is extinguished when the HEAT
switch is set to “OFF” or “O”.
D. Window
A window on the front of the oven permits viewing the items
being baked and provides access to the oven for items that
do not require full baking time, such as sandwiches,
cookies, small items, or cheese-melting processes.
E. Cooling Fan — See Figure 1-8
The cooling fans are located in the back of the oven.
These cooling fans draw air through its grille, blowing it
through the blower motor compartment and the control
compartment into the oven top and exhausted out the front
louvers.

F. Air Fingers and Blank Plates - See Figure 1-9
F1. Air Fingers
An Air Finger Assembly is made up of three parts:
1. Outer Plate - The Outer Plate is the removable covering
with tapered holes, which direct the air stream onto the
product being baked.

Figure 1-7. Machinery Compartment
Components

2. Inner Plate -The perforated Inner Plate is vital in forming
the unique air jets. It must be assembled into the manifold
with its holes aligned with the holes of the outer plate.
3. Manifold - The Manifold is the assembly which slides
on tracks into the oven plenum.

SECTION 1
DESCRIPTION

Figure 1-8. Cooling Fan

SECTION 1
DESCRIPTION
F2. Blank Plates
1. Blank Plates- The Blank Plates are available to install
on the plenum where an air finger is not required.

Half Blank Plate
Outer Plate

Blank Plate

Inner Plate

Finger
Manifold
Assembly

Baffle

Figure 1-9. Blank Plates (two sizes) and an Air Finger.

SECTION 2
INSTALLATION

SECTION 2
INSTALLATION
NOTE: The oven, 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/NFPA70.

I. UNLOADING
Your Middleby Marshall PS536ES-Series Oven is shipped
partially assembled. It will arrive in a carton on a crate.
Carton size for a PS540-Series Oven is:

NOTE

58″ (2134mm) Long ×

There must be adequate clearance between
the oven and any adjacent combustible construction. Clearance must also be provided
for servicing and for operation.

47.25″ (1473mm) Wide ×
36″ (1118mm) High ×
The crate and carton must be examined before signing the
Bill of Lading. Report any visible damage to the transport
company, and check for the proper number of crates. If
apparent damage is found, make arrangements to file a
claim against the carrier. Surface Interstate Commerce
Regulations (U.S.A.) require that the claim must be
initiated by the consignee within 10 days from the date that
the shipment is received.

CAUTION
It is required that the oven be placed under a
ventilation hood for adequate air supply and
ventilation.

CAUTION

A Pre-installation Procedures Manual (MM P/N 88910-0009)
is attached to the exterior wall of the carton. This manual
contains detailed instructions on unpacking and moving the
oven(s) to the operating site. When the transport company
notifies you of an impending delivery, arrange to have a forklift
at your facility to unload the carton(s).

Do not obstruct the flow of combustion and
ventilation air to and from your oven. Do not
obstruct the ventilation holes in the Control Panel.

CAUTION
On ovens with the Machinery Drive Compartment
located at the right end, a minimum clearance of
0″ to a left side wall, 18″ to a right side wall and 6″
from a back wall to air openings at the rear of the
oven must be maintained. On ovens with the
machinery/drive compartment located at the left
end, a minimum clearance of 0″ to a right side
wall, 18″ to a left side wall and 6″ from a back wall
to air openings at the rear of the oven must be
maintained.

Instructions for stacking the ovens is continued in a
separate manual used by Middleby Marshall Authorized
Installers.
If you have a door wider than the carton, simply move the
carton into your facility and arrange an appointment with
your Middleby Marshall Authorized Installer.
If your door is narrower than the carton, then the oven will
have to be unpacked. Follow the directions shown in the
Pre-Installation Procedures Manual.

For servicing and cleaning, a minimum of 18″
clearance from all walls is recommended.

SECTION 2
INSTALLATION
PS536ES OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT
TYPE
OF
INSTALLATION

PS536ES Single Oven
PS536ES Double Oven

PS536ES
Single Oven
Installation
Kit P/N
44919
45529 (CE)

PS536ES
Double Oven
Installation
Kit P/N
44920
45530 (CE)

PS536ES
Triple Oven
Installation
Kit P/N
44921
45531 (CE)

PS536ES
Additional Cavity
Installation
Kit P/N
44974
45532 (CE)
1

PS536ES Triple Oven

SECTION 2
INSTALLATION
Figure 2-1 - Installation Kit

INSTALLATION KIT - see Figure 2-1

Item
1
2
3
4a

Qty.
Single
Oven
1
2
1
4

Qty.
Double
Oven
1
2
1
4

Qty.
Triple
Oven
1
2
1
--

Part No.
48605
3A80A8801
42893
42890

Inc. with
domestic
ovens?
Yes
Yes
Yes
Yes

Inc. with
CE
ovens?
Yes
Yes
Yes
Yes

Description
Top panel
Screw, pan head #10 x 2″
Base pad
17-1/2″ (445mm) leg extension, for single and
double ovens
4b
-4
-45360
Yes
Yes
20-1/2″ (521mm) leg extension, optional
4c
-4
-45329
Yes
Yes
25-1/2″ (648mm) leg extension, optional
4d
--4
44799
Yes
Yes
6″ (152mm) leg extension, for triple ovens only
5
2
2
2
22290-0009
Yes
Yes
Caster, with flat plate and brake
6
2
2
2
22290-0010
Yes
Yes
Caster, with flat plate (no brake)
NOTE: Domestic and standard export ovens include 2 braking casters (item 5) and 2 non-braking casters (Item 6). CE-approved
ovens include 4 non-braking casters (Item 6) SOLELY for the purpose of moving the oven to the installation location. Casters are
NOT suitable for use as part of CE oven installations. Refer to the notice on the preceding page.
7
4
4
4
22450-0028
No
No
Leg, adjustable, 6″ (152mm)
8
1
1
1
21392-0004
Yes
Yes
Eyebolt, 3/4″
9
A/R
A/R
A/R
220373
Yes
Yes
Hex bolt, 3/8″-16 x 1″
NOTE: CE-approved ovens include 32 hex bolts. Domestic and standard export ovens include 31 hex bolts and one eyebolt (item 8)
that acts as an anchor for the restraint cable (Item 12). CE ovens are mounted on legs (Item 7) and do not use a restraint cable.
10
32
32
32
21416-0001
Yes
Yes
Flat washer, 3/8″
11
32
32
32
21422-0001
Yes
Yes
Lockwasher, 3/8″
12
1
1
1
22450-0228
Yes
Yes
Restraint cable assembly
13
1
1
1
50236
Yes
Yes
Owner's Operating and Installation Manual
14
1
1
1
1002040
Yes
Yes
Authorized Service Agency Listing
15
1
1
-46393
Yes
Yes
Lower shelf

SECTION 2
INSTALLATION

Figure 2-5. MODEL PS536ES SINGLE OVEN DIMENSIONS

ELECTRICAL JUNCTION BOX

RECOMMENDED MINIMUM CLEARANCES:
Rear of Oven to Wall - 6″ (150mm)
Non-control End of Oven to Wall - 0″
Control End of Oven to Wall - 0″

SECTION 2
INSTALLATION

Figure 2-6. MODEL PS536ES DOUBLE OVEN DIMENSIONS

ELECTRICAL JUNCTION BOX

RECOMMENDED MINIMUM CLEARANCES:
Rear of Oven to Wall - 6″ (150mm)
Non-control End of Oven to Wall - 0″
Control End of Oven to Wall - 0″

SECTION 2
INSTALLATION
1

ELECTRICAL JUNCTION BOX

RECOMMENDED MINIMUM CLEARANCES:
Rear of Oven to Wall - 6″ (150mm)
Non-control End of Oven to Wall - 0″
Control End of Oven to Wall - 0″

2
2

Figure 2-7. MODEL PS536ES TRIPLE OVEN DIMENSIONS

RESTRAINT CABLE INSTALLATION
Install the restraint cable assembly on the oven, as shown
in Figure 2-6.

Figure 2-8. Restraint Cable Assembly Installation
14

SECTION 2
INSTALLATION
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS540-SERIES OVENS
5

WARNING
DO NOT USE CONDUIT OR GAS LINE
FOR GROUND CONNECTION.

6
OFF

3
1
24"
610mm

CAUTION

IT IS REQUIRED THAT THE OVEN BE
PLACED UNDER A VENTILATION
HOOD FOR ADEQUATE AIR SUPPLY
AND VENTILATION.

27"
686mm
OFF

13-1/2"
343mm

24"
610mm

ELECTRIC AND GAS SUPPLY TO BE
PROVIDED BY CUSTOMER
Suggested dimensions are shown; utility code
requirements supersede any factors shown.

ELECTRICAL SAFETY SWITCH
15 Amp circuit breaker / fused disconnect switch with
lockout/tagout electrical shutoff for each oven. Wire
each oven separately.

Figure 2-9. Typical PS540-Series Oven(s)
Installation

ELECTRICAL SPECIFICATIONS

GAS SAFETY VALVE

DOMESTIC or EXPORT: 208-240V blower motor,
1 phase, 4.1 Amp draw, 50/60 Hz, 208-240V control
circuit, 2 poles, 3-wire system per oven (2 hot, 1 grd).

A 3/4″ (19mm) ID (inner diameter) full-flow, gas shutoff
valve. A separate connection and valve must be provided
for each oven, as shown in Figure 2-9.

Do NOT use conduit for ground.

REQUIRED GAS SUPPLY PRESSURE

GAS RATING

Natural: 6″ to 12″ water column (13.8 to 29.9 mbar)

Model PS540 is 110,000 BTU/hour (27,720 kcal), 32.2 kW/hr.

Propane: 11.5″ to 12″ water column (28.7 to 29.9 mbar)

MINIMUM GAS METER RATING
450 ft3/hour (12.6m3/h) for 1 or 2 ovens;

SUGGESTED

Add 180 cu. ft./hr (5.1 m3/h) for each additional oven.

If space permits, electric and gas service should be
located near the control console end of the oven(s) to allow
convenient access to safety switches and valves.

Minimum rating does not take other gas appliances into
consideration. Gas consumption varies at each site. Total
BTU/hr (kcal/hr) must be calculated during high flame
operation for each appliance to determine if the meter
needs to be larger.

USER SUPPLIED ITEMS (Figure 2-9)
ITEM
1
2
3
4
5
6

MINIMUM GAS PIPE SIZE
Natural: 2″ (51mm) ID for 1, 2, or 3 ovens with runs up
to 200 ft. (61m).
Must be a dedicated line.
Runs over 200 ft, (61m) consult factory.
Propane: 2″ (51mm) ID for 1, 2, or 3 ovens with runs up
to 200 ft. (61m).
Must be a dedicated line.
Runs over 200 ft, (61m) consult factory.

DESCRIPTION
2″ (51mm) × 2″ (51mm) × 3/4″ (19mm) TEE
3/4″ (19mm) × 3″ (76mm) NIPPLE
3/4″ (19mm) FULL FLOW GAS SHUTOFF VALVE
2″ (51mm) × 3/4″ (19mm) 90° REDUCER ELBOW
2″ (51mm) ID GAS SUPPLY PIPE LINE - NATURAL GAS
15 AMP TOGGLE SWITCH - 2 POLE for GAS

SECTION 2
INSTALLATION
II. VENTILATION GUIDELINES

VENTILATION HOOD

A mechanically driven ventilation system is required for
the PS536ES Series Middleby Marshall conveyorized
electric ovens. The minimum hood canopy dimensions are
outlined below.

The rate of air flow exhausted through the ventilation
system is generally between 1400 and 2500 cu. ft./min.
(40 and 70 m3/min), but may vary depending on the oven
configuration and hood design. To avoid a negative
pressure condition in the kitchen area, return air must be
brought back to replenish the air that was exhausted. A
negative pressure in the kitchen can cause heat related
problems to the oven components as if there were no
ventilation at all. The best method of supplying return air
is through the heating, ventilation and air conditioning
system. Through they system, the air can be temperature
controlled for summer and winter. Return air can be
brought in directly from outside the building, but detrimental affects can result from either extreme seasonal hot and
cold temperature from the outdoors.

Local codes and conditions vary greatly from one area to
another and must be complied with. Following are the
suggested requirements for good ventilation. Please remember these are recommendations or guidelines, you
may have a special condition or problem that will require
the services of a ventilation engineer or specialist. Proper
ventilation is the oven owner’s responsibility. Improper
ventilation can inhibit oven performance. It is recommended that the ventilation and duct work be checked out
every three months. Grease filters in the intake of the hood
may be required by local codes.

NOTE: Return air from fan driven system within the hood
must not blow at opening of bake chamber or poor oven
baking performance will result.

Figure 2-10. Vent Hood

SECTION 2
INSTALLATION
III. ELECTRICAL CONNECTION
INFORMATION FOR PS536ES-SERIES
OVENS.

IV. ELECTRIC SUPPLY FOR
ELECTRICALLY HEATED OVENS
Power requirements for electrically heated ovens are
usually 208 - 240VAC, 3-phase, 4-wire (3 ‘hot’, 1 ground),
although ovens built for export can have power requirements of 380VAC and 480VAC. (These ovens have a 5wire system.) A 2″ (51mm) diameter cutout/hole in the
back of the machinery compartment provides access for
the electrical supply connections. Using flexible cable(s)
for the electrical power supply conductors requires a 2″
(51mm) strain-relief fitting (not furnished) to enable safe
access to the terminal block from which oven power is
distributed.

WARNING
Authorized supplier personnel normally accomplish the connections for the ventilation system,
electric supply, and gas supply, as arranged by
the customer. Following these connections, the
factory-authorized installer can perform the initial
startup of the oven.

The supply conductors must be of the size and material
(copper) recommended to provide the current required;
(refer to the data plate for the ampere specifications). The
electric current rating for each conductor supplying a
PS536ES-Series Oven must comply to local and national
codes.

Check the oven data plate (Figure 2-11) before making any
electric supply connections. Electric supply connections
must agree with data on the oven data plate.
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.

Typical specifications for each PS536ES-Series Oven are
208V or 240V, 3-phase, 4-wire, 60-ampere, 17kW; this
oven requires 60-ampere service. A PS536ES-Series
Double Oven (Figure 1-2) installation would require two 60ampere service connections, one for each oven; the 17kW
power consumption also doubles for such an installation to
34kW.

A fused disconnect switch or a main circuit breaker
(customer furnished) MUST be installed in the electric
supply line for each oven; it is recommended that this
switch/ circuit breaker have lockout/tagout capability. The
electric supply connection must meet all national and local
electrical code requirements. Copper is the recommended
material for the electrical supply conductors.

The 208V or 240VAC electrically heated oven uses two
legs of the supplied power to provide 208V or 240VAC
power for the oven control circuitry.

Figure 2-11. Typical Electric Oven Data Plate

Figure 2-12. Junction Connection Box
17

SECTION 2
INSTALLATION
VI. CONVEYOR REAR STOP AND END
STOP INSTALLATION
Locate the conveyor rear stop and end stop in the
installation kit. Install the rear stop and end stop at the exit
end of the oven. See Figure 2-13.

Figure 2-13. Installing Rear and End Stops

SECTION 3
OPERATION

SECTION 3
OPERATION
I. CONTROL FUNCTIONS

Figure 3-1. PS536ES-Series Oven Control Functions

WARNING
A possibility of injury from rotating parts and
electric shock exists in this oven.
Never disassemble or clean the oven with the
BLOWER/HEAT switch or any other oven control
turned “ON” or “I”. Turn “OFF” or “O” and lockout
or tagout all electric power to the oven before
attempting to clean or service this oven.

SECTION 3
OPERATION
II. COMPONENT INFORMATION AND
LOCATION (Figures 3-1 and 3-2)

burner cannot light, if the air switch does not sense air flow
off the main blower fan.

A. Door Safety Switch

C. Heat Switch

The Door Safety Switch is located at the lower left side of
control panel opening. Opening the control panel door
permits this switch to open, disconnecting power to all
electrical controls.

Turning the HEAT switch to “ON” or“I” will initially set up
the oven purge circuit. After approximately 30 seconds,
the burner lights. After the burner is lit, a flame sensor
sends a signal to the ignition module to stop the spark.
The burner will run unless the flame sensor does not
detect a flame or the heat switch is turned to the “OFF”
or “O” position.

CAUTION
Do NOT touch the wires going to this safety switch.
Current is always present.

The HEAT switch is in series with the burner blower motor
centrifugal switch, the high-temperature safety switch,
and the blower fan air pressure switch. All three safety
switches must be closed for gas to flow and the burner to
light.

B. Blower Switch
The blower switch has two positions. The switch must be
“ON” or “I” for the burner to come on and permit the oven
to warm up. The fan circulates the air throughout the oven
and must stay on during baking and during the cool down
cycle above 200°F (93°C) to prevent blower bearing
damage. To protect the blower motor and bearings a
thermostatic override is built into the oven. If the temperature inside the oven is over 180°F (82°C) the main blower
will continue to run after the blower switch is turned to the
“OFF” or “O” position.

D. Temperature Controller
The temperature controller is a solid-state, on/off type to
maintain the operator-set temperature. The temperature
controller continuously monitors the oven temperature and
turns on the modulating solenoid valve in a gas-heated
oven. The heat is on for the time required to maintain a
constant oven temperature.
The temperature controller contains a low-limit switch
which allows the oven to cool down to 200°F (93°C) before
shutting off the blower. A high-limit indication (ALM 1) will
appear on the display if the oven reaches 650°F (343°C).

An air pressure switch monitors the air flow from the
blower, acting as a safety interlock for the burner. The

Figure 3-2. Interior View of Machinery Compartment and Control Console
20

SECTION 3
OPERATION
E. Conveyor
The on-off switch for the conveyor motor is on the control
panel. Also on the control panel is the digital conveyor
speed control. The digital control can be adjusted from 3
min. to 30 min. bake time (conveyor speed). Refer to
Figure 3-3.
Conveyor speed is measured by the amount of time it
takes for an item to go through the bake chamber of the
oven.

MEASURING CONVEYOR SPEED.
See Figures 3-4 and 3-5.

Figure 3-3. Conveyor Speed Digital Control

To check conveyor speed, place a product item at the
entrance end of baking chamber as shown. Time how long
it takes for the leading edge of the item to go from the
entrance end of the baking chamber to the exit end. This
should be the conveyor speed shown on the conveyor
speed digital control.
NOTE: In Figures 3-4 and 3-5, the oven shown is with the
conveyor running right to left.

WARNING
Possibility of injury from rotating parts and
electrical shock exist in this oven.
Never disassemble or clean the oven with the
BLOWER/HEAT switch or any other part of the
oven turned “ON” or “I”. Turn “OFF” or “O” and
lockout or tagout all electrical power to the
oven before attempting to clean or service
this oven.

Figure 3-4. Product at entrance end of baking
chamber – BEGINNING OF TIMING

Figure 3-5. Product at exit end of baking
chamber – END OF TIMING
21

SECTION 3
OPERATION
4. Set the temperature controller to the desired baking
temperature. See section on bake times to determine
desired temperature.

WARNING
OVEN MUST BE KEPT CLEAR OF
COMBUSTIBLES AT ALL TIMES.

NOTE: For complete temperature controller operation
instructions refer to Step C.

III. STEP-BY-STEP OPERATION

5. Turn the HEAT switch (Figure 3-6) to the “ON” or “I”
position. This completes a circuit to supply electric power
to the electric heating system.

Control Panel (On split belt ovens, two conveyor speed
controls are mounted on the control panel.)

6. Close front window.

A. Startup Procedures

7. Oven will reach a baking temperature of 500°F (232°C)
in approximately 10 minutes. Allow the oven to cycle for
30 minutes after it has reached desired bake temperatue.
The oven is now ready for baking.

Daily Startup
1. Turn the BLOWER/HEAT switch (Figure 3-6) to the
“ON” or “I” position. This starts the main blower fan and the
cooling fan. The blower circulates air through the air fingers
and must stay on during the cooking or baking process.

Power Failure
In case of power failure, turn off all switches; open oven
window and remove product. After power has been
reestablished follow normal startup procedure.

2. Check to see if the cooling fan (see Figure 1-8) is operating
when the BLOWER/HEATswitch (see Figure 3-6) is turned “ON”
or “I”. The cooling fans cool the control components and burner
blower motor. The cooling fan, located at the rear of the electrical
control cabinet blows air into and through the cabinet. Air is
exhausted through the front of the cabinet and also out the front
of the oven. Refer to Daily Maintenance Section for fan intake
checking procedure.

B. Shutdown Procedure
1. Turn the BLOWER/HEAT switch to “OFF” or “O”.
NOTE: The blowers will remain on until the oven temperature cools down to 200°F (93°C) at which time they will stop
automatically.

IMPORTANT NOTE

2. Make certain that there are no products left on the
conveyor inside the oven. Turn the CONVEYOR switch
to “OFF” or “O”.

The cooling fan operates when the BLOWER/
HEAT switch is turned “ON” or “I”. It must operate
to keep the control console below 140°F (60°C).

3. Open the oven window.
3. Turn the CONVEYOR switch (Figure 3-6) to the “ON” or
“I” position. This starts the conveyor belt moving through
the oven. Set the conveyor speed for the desired baking
time. Refer to the following Procedures E, F and G.

SECTION 3
OPERATION

Figure 3-6. Control Panel
I.

LOCATION AND DESCRIPTION OF CONTROLS

"BLOWER" Switch: Turns the blowers and
cooling fans on and off. The HEAT Switch has
no effect unless the BLOWER Switch is in the
“ON” position.

"HEAT" Switch: Allows the burner to activate.
Activation is determined by the settings on the
Digital Temperature Controller.

"CONVEYOR" Switch: Turns the conveyor drive
motor on and off.

Conveyor Speed Controller: Adjusts and displays the bake time. Single-belt ovens have one
controller. Split belt ovens have one controller
for each conveyor belt, labeled "FRONT" and
"BACK."

Digital Temperature Controller: Continuously
monitors the oven temperature. Settings on the
Digital Temperture Controller control the activation of the burner. Keypad controls allow the
operator to select the cooking temperature and
monitor oven operation.

NOT SHOWN:
F.

Machinery and Control Compartment Safety Switches:
Disconnect electrical power to the controls and blowers
when EITHER the machinery compartment door OR the
control compartment door is opened. The doors should
only be opened by authorized service personnel.

SECTION 3
OPERATION
II. NORMAL OPERATION - STEP-BY-STEP
A.

DAILY STARTUP PROCEDURE

Check that the circuit breaker/fused disconnect is in the on
position. Check that the window is closed.

Turn the "BLOWER" ( )
switch to the “ON” ("I")
position.

Turn the "CONVEYOR"
(
) switch to the “ON”
("I") position.

•

(Optional) Press the Tem-

wait
for

Allow the oven to preheat for 10 minutes after it has reached
the set point temperature.

DAILY SHUTDOWN PROCEDURE

Turn the "HEAT" ( ) and
"BLOWER" ( ) switches to the "OFF" ("O")
position. Note that the
blowers will remain in operation until the oven has
cooled to below 200°F
(93°C).

Make certain that there
are no products left on
the conveyor inside the
oven. Turn the "CON) switch to
VEYOR" (
the "OFF" ("O") position.

Open the window to allow the oven to cool faster.

After the oven has cooled and the blowers have turned off,
switch the circuit breaker/fused disconnect to the off position.

wait
for

Press the Set Point
and Unlock keys at
the same time. Wait
for the "SET PT" light
to turn on.
Press the Up Arrow
and Down Arrow
Keys as necessary
to adjust the setpoint.

Wait for the oven to heat to the setpoint temperature. Higher
setpoint temperatures will require a longer wait. The oven
can reach a temperature of 500°F (232°C) in approximately
5 minutes.
perature ( ) key to show
the Actual Temperature
in the display, and wait
for the "ACTUAL TEMP"
light to turn on. This allows you to monitor the
oven temperature as it
rises to the setpoint.

If necessary, adjust the
conveyor speed setting
by pressing the
or
pushbuttons on the conveyor speed controller to
change the displayed
bake time.
Adjust the temperature
controller to a desired set
temperature, if necessary.

IMPORTANT

On gas ovens, if the "HEAT ON" light will not illuminate, OR
if the oven does not heat, the gas burner may not have lit.
Turn the "HEAT" ( ), "BLOWER" ( ), and "CONVEYOR"
(
) switches to the "OFF" ("O") position. Wait for AT
LEAST FIVE MINUTES before restarting the oven. Then,
repeat the Daily Startup procedure.

Turn the "HEAT" ( )
switch to the "ON" ("I")
position, and wait for the
"HEAT ON" light to turn
on.

CAUTION

wait
for

In case of power failure, turn all switches to the “OFF” ("O")
position, open the oven window, and remove the product.
After the power has been restored, perform the normal
startup procedure. IF THE OVEN WAS SWITCHED OFF
FOR LESS THAN 5 MINUTES, WAIT FOR AT LEAST FIVE
MINUTES BEFORE RESTARTING THE OVEN.
The burner will not operate and gas will not flow through
the burner without electric power. No attempt should be
made to operate the oven during a power failure.

SECTION 3
OPERATION
III. QUICK REFERENCE: DIGITAL TEMPERATURE CONTROLLER

Display

"HEAT ON"
Light

Shows the Set Point
or the Actual Temperature in degrees
Fahrenheit (F) or
Celsius (C).

Lights when the
burner is in
operation.

"SP LOCK"
Light
Lights when the
set point is locked
out from changes.
This setting can
only be changed by
service personnel.

"SET PT"
(setpoint)
Light
Lights when the
set point is shown
in the display.

OVERTEMP
Light
Lights when the oven
temperature is
greater than 650°F
(343°C). Refer to
Quick Reference:
Troubleshooting in
this section.

"ACTUAL
TEMP" Light

Temperature
Key

Service Key

Lights when the
Actual Temperature is shown in
the display.

Service use
only.

Press this key once
to view the Actual
Temperature in the
Display.

Set Point Key
Unlock Key
Press this key
together with the Set
Point Key to allow the
Set Point to be
changed. Changes
can only be made for
60 seconds.

Up Arrow and Down
Arrow Keys
Press these keys to
adjust the Set Point up or
down. If the Set Point will
not change, refer to Set
Point Key and Unlock Key
in this section.

Press this key
together with the
Unlock Key to allow
the Set Point to be
changed.
Changes can only be
made for 60 seconds.

SECTION 3
OPERATION
IV. QUICK REFERENCE: TROUBLESHOOTING
SYMPTOM

PROBLEM

SOLUTION

The oven temperature exceeded 650°F (343°C), and
the burner was automatically shut down.

•

Follow the procedures under Daily Shutdown Procedures in
this section to shut down the oven. Contact your Middleby
Marshall Authorized Service Agent to determine and correct the
cause of the condition to prevent damage to the oven.

Oven will not
turn on at all

Electrical power may not be
reaching the oven, or the
controls may be set incorrectly.

•

Check that the circuit breaker/fused disconnect is turned on.

•

Check that the "BLOWER" ( ) Switch is in the “ON” ("I")
position. The burner cannot engage until the blowers are in
operation.

Oven shuts down shortly
after it is turned on

The gas burner did not light
within 90 seconds of turning the "HEAT" ( ) Switch
to the “ON” ("I") position.
This automatically engages a safety lockout
mode.

•

Turn the "HEAT" ( ), "BLOWER" ( ), and "CONVEYOR"
(
)switches to the "OFF" ("O") position.

•

Wait for AT LEAST FIVE MINUTES before restarting the oven.

•

Repeat the Daily Startup procedure.

The oven did not reach
200°F (93°C) within 15 minutes of startup, and the oven
has stopped heating.

•

Turn the "HEAT" ( ), "BLOWER" ( ), and "CONVEYOR"
(
)switches to the "OFF" ("O") position.

•

Wait for AT LEAST FIVE MINUTES before restarting the oven.

•

Repeat the Daily Startup procedure.

Controls may be set incorrectly.

•

Check that the Set Point is correctly set.

•

Check that both the "BLOWER" (
are in the “ON” ("I") position.

•

If the oven still will not heat,turn the "HEAT" ( ), "BLOWER"
(
), and "CONVEYOR" (
)switches to the "OFF" ("O")
position.

•

Wait for AT LEAST FIVE MINUTES before restarting the oven.

•

Repeat the Daily Startup procedure. Check that the Set Point
is above 200°F (93°C).

•

Turn the oven to the “OFF” or “O” position, and allow it to cool.
Disconnect electrical power to the oven.

•

Refer to Section 4, Maintenance, for instructions on reassembling the air fingers.

•

Turn the oven to the “OFF” or “O” position, and allow it to cool.
Disconnect electrical power to the oven.

•

Check if the conveyor is blocked by an object inside the oven.

•

Refer to Section 4, Maintenance, for instructions on checking
the conveyor and drive chain tension.

•

Check that the set temperature and bake time settings are
correct.

light is lit, food product is
undercooked

appears in display,
oven is not heating
Oven will not heat

Oven is operating, but
little or no air is blowing
from air fingers

Air fingers may have been
reassembled incorrectly
after cleaning.

Conveyor moves with a
jerky motion, or will not
move at all

Conveyor may be jammed
on an object in the oven, or
conveyor belt or drive chain
tension may be incorrect.

Food products are
overcooked or
undercooked.

Controls may be set incorrectly.

) and "HEAT" (

) Switches

IF THESE STEPS FAIL TO RESOLVE THE PROBLEM, CONTACT YOUR LOCAL MIDDLEBY MARSHALL
AUTHORIZED SERVICE AGENT. A SERVICE AGENCY DIRECTORY IS SUPPLIED WITH YOUR OVEN.
26

SECTION 4
MAINTENANCE

SECTION 4
MAINTENANCE
WARNING
Possibility of injury from rotating parts and electrical
shock exist in this oven. Turn off and lockout or tagout
electrical supply to oven(s) before attempting to
disassemble, clean or service oven(s). Never disassemble or clean the oven with the blower switch or any
other part of the oven turned on.

WARNING
Before performing any maintenance work or cleaning,
turn main power switch off.

CAUTION
When cleaning do not use any abrasive cleaning
materials or water spray, wipe clean only. Never use a
water hose or pressurized steam cleaning equipment
when cleaning this oven.

NOTICE
If the oven is to be removed from its installed location
for servicing, perform the following procedure:
1. Switch off the oven and allow it to cool. Do NOT
service the oven while it is warm.
2. Turn off main circuit breakers and disconnect
connector from oven.
3. Turn the adjustable legs to put weight on the
casters.
4. Move oven to desired location for servicing.
5. When servicing is complete, move oven to original
location.
6. Adjust legs to level oven and take weight off
casters.
7. Connect electrical and gas connectors to oven.
8. Turn on main circuit breakers.
9. Follow normal startup instructions.

SECTION 4
MAINTENANCE
I. MAINTENANCE - DAILY

D. Crumb Pans (Figure 4-2)

A. Exterior

Remove and clean the crumb pan at each end of the oven.
Each crumb pan can be removed by sliding it out, as
shown in Figure 4-2. Reinstall the crumb pans after
cleaning.

Everyday you should clean the outside of the oven with a
soft cloth and mild detergent.

E. Window

WARNING

The window can be cleaned daily while it is in place.

Never use a water hose or pressurized steam
cleaning equipment when cleaning the oven.

B. Cooling Fan
1. TWO COOLING FAN GRILLES AT THE REAR OF
EACH OVEN CONTROL COMPARTMENT MUST BE
CLEANED DAILY - Clean grilles with a stiff nylon type
brush.
2. Check the air intake of the cooling fan daily. The best
time to check is right after starting the oven.

IMPORTANT NOTE
The cooling fan operates when the blower switch
is turned to “ON” (“I”). It must operate to keep the
electrical control cabinet below 140°F (60°C).

WARNING
IF FAN BLADE IS NOT ROTATING, BROKEN,
OR FAN ASSEMBLY IS MISSING FROM MAIN
BLOWER MOTOR SHAFT, DO NOT OPERATE
OVEN. REPLACE COOLING FAN BLADE
BEFORE OPERATING OVEN. Serious damage
could be done to the burner blower motor and/or
solid-state electrical components if oven is
operated while cooling fan is not running or vent
grille is plugged.

Figure 4-1. Oven Cooling Fans

3. Using a stiff nylon brush clean control compartment
vent grille. Hot air from control compartment exits from this
grille.
C. Conveyor Belt (Figure 4-2)
Everyday, just after starting the oven, stand at the
unloading end of the conveyor, and with a brush, remove
food particles (crumbs, etc.) clinging to the conveyor belt,
brushing them into the crumb pan.

Figure 4-2. Conveyor Belt and
Crumb Pan Cleaning
28

SECTION 4
MAINTENANCE
deposits use a non-caustic cleaner that will not react with
the aluminized finger manifold surfaces.

II. MAINTENANCE - MONTHLY
NOTE: The oven interior may require cleaning more
than once a month depending on the volume of
baking. To clean the interior, you have to disassemble
some parts of the oven.

You can order non-caustic cleaner from your local authorized Middleby Marshall Parts Distributor in the quantities
listed below:
Part #

Quantity

When cleaning your Series PS536ES Oven note the
following:

27170-0244

Case of Quarts (6)

PRECAUTIONS-

27170-0246

Case of Gallons (4)

1. Do not use excessive water or saturation of oven
insulation will occur.

A. Removing Conveyor From Oven For Cleaning
1. Remove crumb pans as shown in Figure 4-2.

2. Do not use a caustic oven cleaner or the aluminized
finger manifold surfaces will be severely damaged.

2. Remove upper and lower end plugs from each end of
oven by removing the two wing screws from each end plug.

When cleaning your oven, first remove all heavy debris
with a vacuum cleaner. Use a damp cloth for light cleaning.
For heavier cleaning of baked on grease and carbon

3. Remove the conveyor end stop and the conveyor rear
stop (Figure 4-3).

Figure 4-3.
29

SECTION 4
MAINTENANCE
4. Remove conveyor drive chain cover as shown.
5. Remove tension from drive chain by lifting and pushing
the conveyor slightly into the oven. Remove drive chain
from conveyor drive sprocket as shown.
NOTE: The split belt conveyor assembly can only be
removed from the drive end of the oven.
6. Begin sliding conveyor out of the oven as shown.

Figure 4-4.

Figure 4-7.
7. Continue sliding the conveyor completely out of the
oven, fold it in half and then place it to the side for cleaning.
Be careful not to bump drive sprocket while handling
conveyor or damage may result to drive shaft.

Figure 4-5.

Figure 4-8.

CAUTION
Be careful not to bump the drive sprocket while
handling the conveyor, to avoid damaging the
drive shaft.

Figure 4-6.
30

SECTION 4
MAINTENANCE
B. Air Fingers Disassembly For Cleaning
1. As the air fingers are removed use a felt pen to mark all
parts of the fingers. This includes the finger manifold, inner
plate and the outer plate (refer to Figure 1-9). If a blank or
choke plate is used, mark that plate also. Fingers are
marked in the order shown; as viewed from the front of the
oven. (The marks for an upper oven should be preceded
with a “U”, example UB1, UT2, etc.)

Standard Fingers
2. Slide blank plates straight out.

Figure 4-10.
4. With air fingers out, place them in an upright position to
remove the outer plate.
5. Gently step o the lip of the finger and pull the outer plate
off.

Figure 4-9.
3. Remove air fingers.
NOTE: Some oven users require a custom finger arrangement where the quantity of air fingers may vary.
You can remove top and bottom fingers and blank plates
from each or either end. It is highly recommended that
each finger be marked before removing so it is placed in
exactly the same position when reassembled
(refer to step 1).
Remove the air fingers, pull the finger at the back side - pull
straight out.

Figure 4-11.

SECTION 4
MAINTENANCE
6. To remove the inner plate, pull the plate out and then up.

D. Reassembly of Air Fingers
1. Air fingers are made up of one inner plate, one outer
plate and the finger housing manifold. Be sure to match up
the markings (T1, T2, T3, etc.) on all the parts of the air
fingers as you are reassembling.

Figure 4-12.
7. The outer finger plate is stainless and may be cleaned
by either soaking in a hot, strong detergent solution or
using a caustic cleaner. The conveyor belt can also be
cleaned in the same way.

Figure 4-15.
2. Reassemble the inner plate. Keep your fingers clear so
you won’t pinch them. The inner plate of a finger will only
go in one way because of its design.
3. Replace the outer plate by placing your hands flat on
the top of the plate and pushing down. Keep your fingers
clear so you won’t pinch them.

Figure 4-13. Standard Lower Finger

Figure 4-16.

Figure 4-14. Standard Upper Finger
C. Cleaning the Window
The window can be cleaned in place.
32

SECTION 4
MAINTENANCE
4. Replace the air fingers by pushing in at the back side.
Remember to replace them according to the numbers
marked on them when they were removed. They must go

IMPORTANT: Only M6 Fingers fit in the bottom
row. All M3 and M1 finger cover plates have
extended lips at front. This extended lip will not
allow these fingers to be installed in the bottom row.

IMPORTANT: When inserting fingers the tab on
the outer plate must be in the groove as shown in
Figure 4-18. There is a blocking tab on the outside
of the groove which will prevent inserting the
finger in the groove if the outer plate is moved
away from the flange of the finger manifold.

back in the same way they came out.

Figure 4-17.

Extended Lip

Tab on
Outer Plate

Flange of
Finger Manifold

Tab on
Outer Plate

Figure 4-18.

SECTION 4
MAINTENANCE
5. Install fingers and blank plates correctly with edges
interlocked and no space between edges.
Incorrect - Too
Much Space

Top Finger

Blank Plate

Tab on Outer Plate of Finger
Located in Groove

Incorrect - Too
Much Space

Top Finger

Blank Plate

Tab on Outer Plate of Finger
Located in Groove

Correct Edges Overlap
Completely

Top Finger

Blank Plate

Tab on Outer Plate of Finger
Located in Groove

Figure 4-19.
34

SECTION 4
MAINTENANCE
E. Reinstall End Plugs
1. Reinstall lower end plug. Be sure to tighten two wing
screws on the end plug.
2. Reinstall conveyor.
3. Reinstall upper end plug. Be sure to tighten two wing
screws on the end plug.

Figure 4-20.

Figure 4-21.
35

SECTION 4
MAINTENANCE
F. Conveyor Reassembly Into Oven

G. Checking Conveyor Belt Tension

1. Lift conveyor and position it in oven as shown.

WARNING

NOTE: Conveyor assembly may be inserted into either
end of oven. If it is to be installed from the non-drive end
of the oven the drive sprocket assembly must be removed
as shown in conveyor disassembly section.

Oven conveyor belt must be cool when adjusting
belt. Do not adjust belt if HOT.

1. With the conveyor assembly in the oven, stand at one
end of conveyor and check tension by lifting the conveyor
belt at the center of the oven chamber opening. The belt
should not lift higher that 3″ to 4″ (75mm to 102mm).

NOTE: Split belt conveyors can only be inserted from the
drive end of the oven.

2. Adjust conveyor belt tension screws (located on left
end of oven) for the 3″ to 4″ (75mm to 102mm) deflection
as shown in Figure 4-26. If there is proper tension, proceed
to “J. Attaching Drive Chain”. If belt is still too loose,
continue to step 3 below.
3. If conveyor belt is still not under proper tension, an
entire link must be removed. Use the following procedure
“H. Conveyor Belt Link Removal” to remove a link. If
conveyor belt is under proper tension proceed directly to
“J. Attaching Drive Chain”.

Figure 4-22.
2. Reinstall the conveyor rear stop. Reinstall the conveyor end stop.
Conveyor Rear Stop

Middleby
Marshall

Conveyor End Stop

Figure 4-24.

Figure 4-23.

SECTION 4
MAINTENANCE
H. Conveyor Belt Link Removal

4. Unhook the link to be removed.

1. Using long nose pliers, an entire link can be removed
with the conveyor assembly either in or out of the oven.
Position master links at end of conveyor as shown in
Figure 4-25.

5. Pull up on the belt link section and remove. Do not
discard the link removed as it may be used for making
spare master links.
NOTE: If a section of the conveyor belt is being replaced
it should be done now. Remove the links that need
replacing and use the section of conveyor belt furnished in
your installation kit to replace them.

Master
Links

Figure 4-25.
2. Using long nose pliers, unhook master links at left end
of conveyor as shown in Figure 4-26.

Figure 4-28.
NOTE: Before connecting the inside master links, notice
that these links have a correct position (Figure 4-29). The
link at the right is in the correct (horns up) position for
inserting into the conveyor belt. The horns facing down are
in the incorrect position.

Correct
Position
Incorrect
Position

Figure 4-26.
3. Remove the outside master links on the right and left
sides of the conveyor belt as shown in Figure 4-27.

Figure 4-29.

Figure 4-27.
37

SECTION 4
MAINTENANCE
6. Reconnect the inside master links (Figure 4-30.)

I. Replacing Conveyor Belt
If a section of the conveyor belt needs replacing it can be
done with the conveyor assembly either in or out of the
oven. The section of the conveyor belt furnished with the
oven in the installation kit may then be used to replace a
section. Follow the preceding procedure “H. Conveyor belt
link removal” which outlines the disassembly procedure.
J. Attaching Drive Chain
1. If drive sprocket assembly was removed reassemble it
into the conveyor drive shaft. Be sure flat on end of drive
shaft aligns with set screw in conveyor shaft collar. Once
in place tighten 3/32″ set screw.
2. Lift conveyor and install drive chain to conveyor drive
sprocket and motor sprocket.

Figure 4-30.
NOTE: The outside master links have right and left sides
to them. The right edge master link has an open hook
facing you as shown in Figure 4-31. This will match up with
the outer edges of the conveyor belt. Remember this hook
travels backwards on the conveyor.
Direction of travel

Figure 4-33.
Figure 4-31.

3. The angle plate located on the underside of the conveyor must be against the lower end plug. This is true on
both sides of oven.

7. Reconnect the outside master links.
8. Replace all parts removed from the oven.

Crumb Pan
Mounting
Bracket

Figure 4-32.

Lower End Plug

Figure 4-34.

SECTION 4
MAINTENANCE
4. Reassemble conveyor drive chain cover and then
reassemble the bottom cover to the drive chain cover.

III. MAINTENANCE - EVERY 3 MONTHS

Install both upper end plugs.

WARNING
Shut OFF all electrical power and lock/tag out the
switch before attempting maintenance work.
Shut OFF gas supply to oven.

NOTE: It is recommended that the 3-month maintenance be performed by an authorized Middleby Marshall
technician.
A.

Cleaning the Blower/Fan Motor

To gain access to the blower/fan motor, open the control
cabinet door by removing the three screws. Clean the
motor, burner blower motor, the conveyor drive motor and
the surrounding area, using either compressed air or CO2.
Thoroughly blow out the motor compartment and vents
inside the motor (Figure 4-38). Failure to do this can cause
premature failure of blower fan motor.

Figure 4-35.

CAUTION
Not cleaning the blower/fan motor properly can
cause premature failure.

Figure 4-36.

SECTION 4
MAINTENANCE
B. Electrical Terminals

C. Ventilation

Open the control cabinet door by removing the three
screws from the control cabinet door. Tighten all electrical
control terminal screws including the electrical contactor
terminal screws as shown in Figure 4-37.

Check that the air circulation throughout the oven is not
blocked and is working properly.

Figure 4-37.

Figure 4-38.

SECTION 4
MAINTENANCE
D. Split-belt Conveyor Shaft Cleaning

4. Drop the idler shaft assembly clear of the frame through
the front frame slot.

It is very important that the split-belt conveyor drive and
idler shafts are removed from the conveyor frame for
cleaning and lubrication.

CAUTION
Use a turbine oil or light machine oil. DO NOT
USE WD40 or similar product. These oils
evaporate and cause the shafts to seize.

1. Perform the conveyor removal steps described in
Monthly Maintenance, paragraph “A”. After the conveyor
is removed, lay it on a flat surface.

Figure 4-40.

2. Remove the two conveyor belts by disassembling the
conveyor master links, as described in Monthly Maintenance, paragraph “H”. Then, remove the two conveyor
belts by rolling them up.

5. Pull the front and rear shafts apart and apply oil to both
the extended shaft and the interior of the hollow shaft.
Using a rag, wipe oil off parts. Repeat until shafts are
clean. Apply more oil to shafts then reassemble.

3. Remove the conveyor adjustment bolts to allow the
idler brackets to swing free.

Figure 4-41.
Figure 4-39.

SECTION 4
MAINTENANCE
6. Make sure bronze washer is in between the two halves.

9. Loosen the split locking collar.

Figure 4-42.
7. Place the idler shaft assembly back into place and
reinstall the adjustment screws.

Figure 4-45.
10. Remove drive shafts by sliding to right then lifting the
left side. Follow cleaning and lubricating procedures outlined in Steps 4-6.

Figure 4-43.
Figure 4-46.

8. Loosen the set screw on each conveyor drive sprocket
and remove sprockets.

11. Reassemble conveyor drive shafts into frame, making sure nylon spacer is in place.

Figure 4-44.

Figure 4-47.

SECTION 4
MAINTENANCE
12. Slide shaft assembly to right side, holding assembly
in place. Slide split locking collar to the left side and
tighten.
13. Slide rear conveyor drive sprocket onto shaft. Tighten
the set screw of this drive sprocket until it extends into the
hole of the hollow shaft. It should NOT touch the inner,
solid shaft. Check to see that only the rear shaft moves
when the sprocket is turned. If both shafts move, you have
tightened the set screw too tight. Loosen the set screw
until only the rear shaft moves when the sprocket is
turning.

Figure 4-48.

14. Insert adaptor bushing into remaining drive sprocket
then place onto shaft. Make sure nylon spacer is in place.
Tighten set screw making sure screw goes through slot in
adaptor bushing and locks onto shaft.
15. Thread conveyor belts back onto frame making sure
the links will be traveling in the proper direction.
16. Follow conveyor reassembly instructions in Monthly
Maintenance Paragraph “F”.
NOTE: It is recommended that the 6 Month Maintenance
schedule be performed by a Middleby Marshall authorized
service technician.

IV. MAINTENANCE - EVERY 6 MONTHS

Figure 4-49.

A. Check brushes on D.C. conveyor motor, when worn to
less than 1/10″ (2.4mm), replace the brushes.
B. Clean and inspect the burner nozzle and electrode
assembly. Also check your oven venting system.
C. Check conveyor shaft bushings and spacers. Replace
them if they are worn. See Figure 6-5, Conveyor Exploded
Drawing, items 15, 30 and 31 or Figure 6-6, Split Belt
Conveyor, items 19, 23, 31, 35 and 36.

IMPORTANT NOTICES:
• Installation of replacement parts requiring access
to the interior of the oven is permitted only by an
authorized service technician.

Figure 4-50.

• If there are any problems with the operation of the
oven, the authorized service technician must be
called.
• It is suggested to obtain a service contract with a
manufacturer’s authorized service technician.

Figure 4-51.
43

SECTION 4
MAINTENANCE
KEY SPARE PARTS KIT

parts that can reduce serious downtime and loss of
production, if a failure occurs.

An oven can be purchased with a Key Spare Parts Kit
(Figure 4-52). (The kit can be purchased when the oven is
ordered, or later, from a Middleby Marshall Authorized
Parts Distributor). The kit contains many of the crucial

Replacement parts for this kit can be purchased from your
Middleby Marshall Authorized Parts Distributor.

11
13

10
12

12, 13

ITEM QTY.

P/N

14, 15, 16, 17

DESCRIPTION

47321

DIGITAL TEMPERATURE CONTROLLER

51067

CONVEYOR DRIVE MOTOR W/PICKUP ASSY.

30153

DRIVE MOTOR BRUSHES

60542

KIT, CONVEYOR SPEED CONTROLER

33984

KIT, THERMOCOUPLE 6″

50517

BELT, BLOWER

44687

MOTOR, BLOWER, 208/230V, 1/2HP

33983

HIGH LIMIT CONTROL MODULE, 240V

36451

COOLING FAN (BACKWALL)

97525

COOLING FAN (CONTROL COMPARTMENT)

60836

AIR SWITCH

44914

CONTROLLER, POWER 208V/240V

44568

CONTROLLER, POWER 380V/480V

58238

HEATER 208V 17kW

50232

HEATER 240V 17kW

50587

HEATER 380V 17kW

50589

HEATER 480V 17kW

SECTION 5
TROUBLESHOOTING

SECTION 5
TROUBLESHOOTING
PROBLEM:
OVEN BLOWER AND CONVEYOR OPERATE, YET THE OVEN IS NOT HEATING

PROBLEM:
PRODUCTS ARE OVERCOOKED
OR UNDERCOOKED

Check for correct
setting of conveyor
speed control.

Check for correct
setting on temperature controller.

Reset the temperature controller
to a new setting (above 200°F),
after turning the BLOWER/HEAT
switch to off for 30 seconds.

Set the conveyor speed
control at correct setting.

Turn temperature
control to correct
setting.

Start the oven again. If the oven still does not
heat, call your Middleby Marshall Service Agency.

Verify the food
preparation process.

PROBLEM:
CONVEYOR WILL NOT HOLD PROPER
SPEED OR WILL NOT RUN AT ALL

If products still cook incorrectly,
call your Middleby Marshall
Service Agency.

Check whether the conveyor is
jammed on something in oven.

PROBLEM:
OVEN DOES NOT HEAT

Check for proper tension of conveyor drive
chain and conveyor belt. Refer to Section 4 for
correct procedure.

Check to see if both BLOWER/
HEAT switch are in the “ON” or
“I” position.

Check that the conveyor
drive sprocket is tight.

If oven does not heat, call your
Middleby Marshall Service Agency.

If conveyor still does not run correctly, contact
your Middleby Marshall Service Agency.

PROBLEM:
BLOWER MOTOR IS RUNNING, YET LITTLE
OR NO AIR BLOWS FROM AIR FINGERS

PROBLEM:
OVEN DOES NOT TURN ON WHEN ITS
SWITCHES ARE TURNED ON

Air fingers reassembled incorrectly,
after cleaning.

Check that all electric supply switches are set to
the “ON” or “I” position. Then, start the oven.

Assemble air fingers correctly, after cleaning.
Refer to Section 4 procedure, or call your
Middleby Marshall Service Agency.

If oven still will not start, contact your Middleby
Marshall Service Agency.

SECTION 5
TROUBLESHOOTING

NOTES

SECTION 6
PARTS LIST

ENGLISH

SECTION 6 - PARTS LIST

SECTION 6
PARTS LIST

ENGLISH
48

QTY.
2
2
2
1
1
1
1
1
1
1
1
4
8
16
2
2
16
2
32
32
32
1
4
1
2
2
4

ITEM

44799

22290-0010

22290-0009

46393

42890

42893

220373

2001805

21416-0001

48622

36452

42771

50161

21296-0005

48640

21256-0008

48605

45739

M1116

M1115

M10092

51087

51211

51210

30927

A27750

A30241

P/N

WLDMT, LEG 6"

CASTER, SWVL FLAT PLATE

CASTER, SWVL W/BRAKE FLAT PLATE

BOTTOM, CART

WLDMT, LEG 17.56

WLDMT, BASE

SCR, HH 3/8-16X1 SST

WASHER, LOCK 3/8M 18-8 REG

WASHER, FLAT SS 3/8

ASSY, END PLUG PS536

NUT, WING-PLASTIC 1/4-20

SLIDE, OUTER SIDE PS536

ASSY, END PLUG TOP PS536

SCR, HX WSHHD 12-14X3/4 SS BSD

ASSY, END PLUG MOUNTING PS536

SCR,10-32X3/8 18-8 SL TRUS S

PANEL,ROOF

NAMEPLATE, MM

BRACKET, RT WINDOW HANDLE

BRACKET, LT WINDOW HANDLE

HANDLE, WINDOW

WLDMT, GLASS FRAME WINDOW

BRKT, WINDOW HINGE & STOP RIGHT

BRKT, WINDOW HINGE & STOP LEFT

BUMPER, WINDOW

WASHER, FLAT .531X1.00X.062

NUT, 1/4-20 18-8 NYL INS L/N

DESCRIPTION

OVEN PANELS, WINDOW AND LEGS

ENGLISH

SECTION 6
PARTS LIST

ENGLISH
50

1
1 OR 2

1 OR 2

13A

QTY.

ITEM

33363

28041-0011

44697

44696

50990

37503

60542

97525

35145

44390

60836

31504

3002757

33813

33983

45036

28021-0047

46831

48635

P/N

END, STOP ENTRELEC

CONTACTOR, 208/240V

BLOCK, CONTACT

SWITCH, ROTARY & MTG ADAPTOR

CONTROL, COMBO 4-20MA, BURST

DIGITAL DISPLAY ONLY

ENGLISH

KIT, CONVEYOR SPEED CONTROLLER P WITH DIGITAL DISPLAY
(INC. ITEM 13A)

FAN, 230V

SWITCH, PB MOLVENO 250V

BLOCK, TERM 600V 50A 3 POLE

SWITCH, AIR .13 IN. WC

TFMR, 230V(P) / 120V(S) 200VA

MOTOR, CONVEYOR DRIVE

FILTER, RFI TYPE F1780DD20

CNTRL, ELEC HI-LIMIT 240V

BREAKER, CIRCUIT 240V 3A

SWITCH, INTLCK 10A NO2P

BREAKER, CIRCUIT 240V 8A

BREAKER, CIRCUIT 240V 0.3A

DESCRIPTION

CONTROL PANEL

SECTION 6
PARTS LIST

ENGLISH
52

ITEM QTY.

44688

44687

44748

50151

50160

17110-0015

22072-0025

35121-0045

42999

42753

42752

42951

P/N

PLATE, MOTOR MOUNTING

MOTOR, BLOWER, 208/230V, 1/2HP

COUPLING, BLOWER SHAFT

BLOWER SHAFT

GASKET, BEARING

GREASE, MM STANDARD CARTRIDGE

BEARING, 5/8" BORE WITH STANDARD
GREASE

TEFLON SEAL

RETAINER, TEFLON SEAL

BLOWER WHEEL, LEFT (VIEWED FROM REAR
OF OVEN)

BLOWER WHEEL, RIGHT (VIEWED FROM
REAR OF OVEN)

INLET RING

DESCRIPTION

13
14

ITEM QTY.

BLOWER AND SHROUD

31497

36451

47633

28021-0061

50517

50224

50256

A3682

B301A8847

A11687

P/N

ENGLISH

FINGER GUARD, COOLING FAN

COOLING FAN

BACK WALL

SAFETY SWITCH

BELT, (50/60Hz)

PULLEY, BLOWER SHAFT

KIT, RPM, (50/60Hz) CONTAINS SHEAVE
(50260) WITH BUSHING (50259)

LOCK WASHER, 5/16"

FLAT WASHER, 5/16"

SCREW, HEX CAP HEAD 5/16"-18 X 7/8"

DESCRIPTION

SECTION 6
PARTS LIST

ENGLISH
54

ITEM QTY.

BRACKET, DRIVE SUPPORT

49972

48782

48781

<----

50033

37000-0413

LOCKNUT, HEX 3/8"-16 SS

SCREW, IDLER ADJUSTMENT

< - - - - 21176-0002 - - - - >

35000-1008
PIVOT PLATE

50028

BRACKET, IDLER SUPPORT

BRACKET, IDLER ADJUSTMT.

< - - - - 35900-0398 - - - - >

35000-1008

< - - - - 35900-0020 - - - - >

37000-0413

BUSHING, BRONZE 5/8" I.D.

IDLER SHAFT

ASSEMBLY, IDLER SHAFT (INC.
ITEMS 15-19)

FRAME, IDLER SIDE

FLANGE BEARING (HIGH SPEED
ONLY)

< - - - - 22034-0003 - - - - >

---->

48780

48795

---->

SPROCKET, CONV. BELT

48779

50032

48784

45377

SPROCKET, CONV. BELT

DRIVE SHAFT

< - - - - 22229-0003 - - - - >

<----

48780

48746

<----

< - - - - 22229-0003 - - - - >

---->

---->
ASSEMBLY, HIGH SPEED DRIVE
SHAFT (INC. ITEMS 10-11)

SPACER, NYLON

< - - - - 35000-1080 - - - - >
---->

BUSHING, BRONZE 5/8" I.D.

---->

< - - - - 22034-0003 - - - - >

43275

SPACER

DRIVE SHAFT

<----

---->

ASSEMBLY, STANDARD DRIVE
SHAFT (INC. ITEMS 3-8)

FRAME, DRIVE SIDE

DESCRIPTION

SPROCKET, CONV. BELT

48781

<----

---->

48790

P/N - 76"
CONVEYOR

< - - - - 22229-0003 - - - - >

48797

48847

P/N - 56"
CONVEYOR

<----

48847

P/N - 60"
CONVEYOR

31b

31a

29b

29a

28b

28a

27a

27b

26a

24a

23a

ITEM QTY.

CONVEYOR

50235

50023

50040

50044

48707

50057

48851

3101212

50050

50235

50023

50040

50044

48707

48706

50055

50052

50235

50023

50040

50044

48708

50059

50029

---->

<--- Not available --->

<----

50050

ENGLISH

PLATE MOTOR COVER ASSY

EXIT TRAY, 20"/508mm (OPT.
ON ALL CONVEYORS)

EXIT TRAY, 8"/203mm (STD. ON
60" & 56" CONVEYORS, OPT.
ON 76")

END STOP (STD. ON 76" CONVEYOR, OPT. ON 60" & 56")

CRUMB PAN, IDLER SIDE

CRUMB PAN, DRIVE SIDE

BELT, CONVEYOR, 18"/457mm,
HIGH SPEED

BELT, CONVEYOR, 18"/457mm,
STANDARD

ASSEMBLY, CHAIN COVER-FOR
OVENS WITH LEFT-SIDE
CONTROLS

ASSEMBLY, CHAIN COVER-FOR
OVENS WITH RIGHT-SIDE
CONTROLS

MASTER LINK, DRIVE CHAIN

ASSEMBLY, DRIVE CHAIN (INC.
ITEM 26a)

SPROCKET, CONVEYOR DRIVE
SHAFT, 20T

PICKUP

ASSEMBLY, CONVEYOR MOTOR AND PICKUP (INC. ITEM 23a)

DESCRIPTION

< - - - - 22159-0003 - - - - >

---->

P/N - 76"
CONVEYOR

SPROCKET, CONVEYOR DRIVE
MOTOR, 20T (STANDARD)

34128

50163

51067

P/N - 56"
CONVEYOR

---->

<----

P/N - 60"
CONVEYOR

SECTION 6
PARTS LIST

ENGLISH
56

ITEM QTY.

57
37000-0413

48755

50028

---->

35000-1008

< - - - - 21176-0002 - - - - >

<----

35000-1008

< - - - - 35900-0020 - - - - >

50033

LOCKNUT, HEX 3/8"-16 SS

PIVOT PLATE

SCREW, IDLER ADJUSTMENT

BRACKET, IDLER SUPPORT

BRACKET, IDLER ADJUSTMT.

BUSHING, BRONZE 5/8" I.D.

< - - - - 22034-0003 - - - - >

37000-0413

SPROCKET, CONV. BELT

SPLIT IDLER SHAFT - SLEEVE

---->

< - - - - 22229-0003 - - - - >

SPLIT IDLER SHAFT - MAIN

ASSEMBLY, SPLIT IDLER SHAFT
(INC. ITEMS 13-19)

FRAME, IDLER SIDE

---->

48769

48795

FLAT WASHER, BRONZE

48778

49968

50035

48784

---->

< - - - - 21415-0001 - - - - >

<----

48769

48746

45377

<---FLANGE BEARING (HIGH SPEED
ONLY)

BRACKET, DRIVE SUPPORT
(STANDARD ONLY)

---->

49972

SPACER (STANDARD ONLY)

<----

---->
BUSHING, BRONZE 5/8" I.D.
(STANDARD ONLY)

43275

< - - - - 22034-0003 - - - - >

<----

SPROCKET, CONV. BELT

< - - - - 22229-0003 - - - - >

SPLIT DRIVE SHAFT - SLEEVE

---->
FLAT WASHER, BRONZE

SPLIT DRIVE SHAFT - MAIN

ASSEMBLY, SPLIT DRIVE
SHAFT, STANDARD AND HIGH
SPEED (INC. ITEMS 3-6)

FRAME, DRIVE SIDE

DESCRIPTION

---->

48790

P/N - 76"
CONVEYOR

< - - - - 21415-0001 - - - - >

48837

49969

<----

48759

48847

P/N - 56"
CONVEYOR

<----

48847

P/N - 60"
CONVEYOR

32b

32a

30b
31

30a

29b

28
29a

27c

27b

27a

24
25

23a

ITEM QTY.

34128

<----

---->

P/N - 76"
CONVEYOR

50023

50040

50044

48707

50056

48851

<----

50051

50050

50023

50040

50044

48706

48707

50054

48851

3101212

50051

50050

50023

50040

50044

48708

50058

50029

---->

50052

50053

< - - - - 35900-0023 - - - - >

< - - - - 22159-0003 - - - - >

50163

51067

P/N - 56"
CONVEYOR

<----

P/N - 60"
CONVEYOR

SPLIT BELT CONVEYOR

ENGLISH

EXIT TRAY, 20"/508mm (OPT.
ON ALL CONVEYORS)

EXIT TRAY, 8"/203mm (STD. ON
60" & 56" CONVEYORS, OPT.
ON 76")

END STOP (STD. ON 76" CONVEYOR, OPT. ON 60" & 56")

CRUMB PAN, IDLER SIDE

CRUMB PAN, DRIVE SIDE

BELT, CONVEYOR, 9"/229mm,
HIGH SPEED

BELT, CONVEYOR, 9"/229mm,
STANDARD

ASSEMBLY, CHAIN COVER

MASTER LINK, DRIVE CHAIN

ASSEMBLY, DRIVE CHAIN,
FRONT BELT (SHORT - INC. ITEM
27c)

ASSEMBLY, DRIVE CHAIN, REAR
BELT (LONG - INC. ITEM 27c)

BUSHING, DRIVE SPROCKET

SPROCKET, CONVEYOR DRIVE
SHAFT, 20T (STANDARD AND
HIGH SPEED)

SPROCKET, CONVEYOR DRIVE
MOTOR, 20T (STANDARD)

PICKUP

ASSEMBLY, CONVEYOR MOTOR AND PICKUP (INC. ITEM 23a)

DESCRIPTION

SECTION 6
PARTS LIST

ELEMENT

ENGLISH
58

QTY.
2
2
1
1
1
1
2
1
2
6
2
1
1

ITEM

33812-1

28021-0047

44549

33363

45019

31589

27480-0001

50589

50587

50232

58238

44568

44914

P/N

TC, TYPE “J” SHIELDED 6.00X120”

SWITCH, INTLCK 10A NO2P

CONTACTOR, 230V AC COIL 85A

END, STOP ENTRELEC

BREAKER, CKT 480VAC 63A 3POLE

LUG, TERM LUG-CU/AL 14-2AWG

BLOCK, POWER DIST 2POLES 600V

WLDMT, HTG ELE 480V 17KW 536ES

WLDMT, HTG ELE 380V 17KW 536ES

WLDMT, HTG ELE 240V 17KW 536ES

WLDMT, HTG ELE 208V 17KW 536ES

CONTROLLER, PS555EL 380-480V

CONTROLLER, PS555EL 208-240V

DESCRIPTION

MACHINERY COMPARTMENT

ENGLISH

SECTION 6
PARTS LIST

NOTES
ENGLISH
60

137

216

BLACK
SCHWARTZ
NOIR
NEGRO

PICK UP
AUFNEHMER
CAPTEUR
CAPTADOR

CB5-0.3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

RED
ROT
ROUGE
ROJO

TC-

TC+

RESET
REINIT
REPOSIEION

232

151

RED
ROT
ROUGE
ROJO

WHITE
WEISS
BLANC
BLANCO

BLACK
SCHWARTZ
NOIR
NEGRO

236
234
151

265

+ARM

-ARM

COUNT

COM

NO1

TRANSFORMATEUR
TRANSFORMADOR
H1
X2

XFMR 230/115 0.2 KVA
TRANSFORMATOR

206
C2,6

BLACK
SCHWARTZ
NOIR
NEGRO

PICK UP
AUFNEHMER
CAPTEUR
CAPTADOR

CB6-0.3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

RED
ROT
ROUGE
ROJO

PARA USAR SOLO EN APLICACIONES DE BANDA

POUR LES FOURS A TAPIS JUMEAUX EXCLUSIVEMENT

RED
ROT
ROUGE
ROJO

WHITE
WEISS
BLANC
BLANCO

BLACK
SCHWARTZ
NOIR
NEGRO

256

TERMOPAR TIPO J

THERMOEOOPLE TYPE J

121

109

111

202

256

CB2-8A

CB4-8A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

C1,3

ROUGE
ROJO

BLANC
BLANCO
RED
ROT

WHITE
WEISS

210

129

260

WHITE
WEISS
BLANC
BLANCO

C1,1

WHITE
WEISS
BLANC
BLANCO

ROUGE
ROJO

TERRE
VERDE
RED
ROT

224
GRD
"
GRUN

131

224
CONTACTOR
"
SCHALTSCHUTZ

CONTROLEUR
CONTROLADOR
A2

131

LOAD
LAST
CHARGE
CARGA

LINE
LINIE
LIGNE
LINEA

263
3

INTERRUPTOR DE CALENTAMIENTO

COMMUTATEUR DE CHUFFAGE

280

GROUND LUG
TERRE PATTE
" ERDUNGSANSCHLUSS
GRUN
..
VERDE LENGUETA

HEIZUNGSSCHALTER

200

101

HEAT SWITCH

TERMOPAR TIPO J

THERMOEOOPLE TYPE J

THERMOCOUPLE
"
THERMOFUHLER

248
157

MOTEUR DE
REFROIDISSEMENT
MOTOR DE VENTILADOR

GRD
"
GRUN

ROUGE
ROJO

BLOWER MOTOR
"
GEBLASE
MOTOREN

133

113

212

INTERRUPTOR DEL COMPARTIMENTO DE CONTROL DELANTERO

INTERRUPTEUR DU PANNEAU DE COMMANDE AVANT

204

FRNT CNTRL HSG SWITCH
"
VORDERER STEUERGEHAUSESCHALTER

C2,9

LS1

CARTE DEFILTRAGE
PLACA DE CIRCUITOSDEL FILTRO

RFI-FILTER
"
FUNKENSTROFILTER

C1,12

C2,12

C2,4

C2,5

C2,3

C1,4

C1,5

10 AWG

149

C1,6

614

613

POWER RELAY
EIN/AUS RELAISS
PUISSANCE RELAIS
RELE DE ENCENDIDO

248
157
228
280

255

143

607

612

605

307

10 AWG

BRN

602

BLU

603

280

GRD

SSR1

414

412

604

HEATING ELEMENTS
"
HEIZGERATE
COTE GAUCHE
CALENTADORES

GRD
"
GRUN
TERRE
VERDE

BLUE

BROWN

Wiring Diagram, E208-240 50/60, 3PH 4W PS536ES

COUNT

COM

+ARM

-ARM

SPEED CONTROL
GESCHWINDIGKEITSKONTROLLE
REGULATION DE VITESSE
CONTROL DE VELOCIDAD

CONVEYOR MOTOR
GLEICHSTROM-BANDMOTOR
MOTEUR DE TRANSPORTEUR CC
MOTOR DE CC DEL TRANSPORTADOR

WHITE
WEISS
BLANC
BLANCO

ROUGE
ROJO

THERMOCOUPLE
"
THERMOFUHLER

INTERRUPTOR DE AIRE

RED
ROT

WHITE
WEISS
BLANC
BLANCO

228

214

115

CB3-3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

L.H DOOR SWITCH
"
LINKE SEITE TURSCHALTER
COTE GAUCHE COMMUTATEUR
VERROUILLAGE PORTE
LADO IZQUIERDO
INTERRUPTOR PUERTA

INTERRUPTEUR D'AIR

TERRE
VERDE

GRD
"
GRUN

238

133

149

AIR SWITCH
LUFTSCHALTER

RED
ROT

KLEMMLEISTE
BLOQUE DE
TERMINALES

TB3

220

218

TERRE
VERDE

GRD
"
GRUN

FAN

216

119

FOR SPLIT BELT APPLICATION ONLY
"
BENUTZT
NUR MIT GERTENNTER LAUFBAND

139

VENTILADOR

VENTILATEUR

137

COM1

COM2

MOTOR COVER SWITCH
N.O. HELD CLOSE
MONITORABDECKUNGSSCHALTER
NORMAL OFFEN, GESCHLOSSEN GEHALTEN
INTERRUPTEUR SUR COUVERCLE DE MOTEUR
NORMALEMENT OUVERT, MAINTENU FEME
INTERRUPTOR DE LA CUBIERTA DEL MOTOR
N.A. SE MAINTIENE CERRADO

208

"
GEBLASE

SPEED CONTROL
GESCHWINDIGKEITSKONTROLLE
REGULATION DE VITESSE
CONTROL DE VELOCIDAD

CONVEYOR MOTOR
GLEICHSTROM-BANDMOTOR
MOTEUR DE TRANSPORTEUR CC
MOTOR DE CC DEL TRANSPORTADOR

254

252

218

119

RESET SWITCH
RUCKSTELLSCHALTER
BOUTON DE COMMANDE
DE REMISE EN MARCHE
INTERRUPTOR DE REAJUSTE

220

234

115

COMMUTATEUR CONVOYEUR
INTERRUPTOR DE TRANSPORTADOR

CONVEYOR SWITCH
LAUFBANDSSCHALTER

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

135

214

COM

COM1
COM2

NO1

LS2

135
125

LS3

COMMUTATEUR VENTILATEUR

TEMPERATURE CONTROL
"
TEMPERATURSCHALTER

INTERRUPTOR DE
VENTILATOR-SPOLPADO
CONTROLEUR DE
TEMPERATURE
THERMOSTATO

CB1-3A

222

127
11
6

-7

NO2

103

NO2

105

12
5

13
4

BLOWER SWITCH
"
GEBLASESCHALTER

COM1
COM2

NO1
NO2

C2,7

503
CB7-63A

C2,8

222

301

107

16
G

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR
CONTACTOR
"
SCHALTSCHUTZ
CONTROLEUR
CONTROLADOR

404
408
410

303
305

507
SSR1

509
511

61
513

LINEA

309

521

606

503
607

HEATER VOLTAGE
(SEE CHART)

404
10 AWG

CB8-63A

610

422

402

302
Z4

10 AWG

605

308

10 AWG

606
611

GRD

SSR2

10 AWG

602

603

501

420

HEATING ELEMENTS
"
HEIZGERATE
COTE GAUCHE
CALENTADORES

519

SSR2

505
515

301

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR
CONTACTOR
"
SCHALTSCHUTZ
CONTROLEUR
CONTROLADOR

LOAD

517

406
416

LAST

304

CARGA

418

CHARGE

306

LIGNE
v

310

109

LINIE
LINE
v

210
v

208-240V
50/60 HZ

610

POWER RELAY
EIN/AUS RELAISS
PUISSANCE RELAIS
RELE DE ENCENDIDO

TB1
KLEMMLEISTE

58214E

GROUND LUG
TERRE PATTE
" ERDUNGSANSCHLUSS
GRUN
..
VERDE LENGUETA

BLOQUE DE
TERMINALES

SECTION 7
ELECTRICAL SCHEMATICS

216

BLACK
SCHWARTZ
NOIR
NEGRO

PICK UP
AUFNEHMER
CAPTEUR
CAPTADOR

CB5-0.3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

RED
ROT
ROUGE
ROJO

252
254

218

TC-

TC+

RESET
REINIT
REPOSIEION

232

151

RED
ROT
ROUGE
ROJO

WHITE
WEISS
BLANC
BLANCO

BLACK
SCHWARTZ
NOIR
NEGRO

236
234
151

265

COUNT

COM

+ARM

-ARM

TRANSFORMATEUR
TRANSFORMADOR
H1
X2

139

218
220

C2,6

WHITE
WEISS
BLANC
BLANCO

RED
ROT
ROUGE
ROJO

GRD
"
GRUN
TERRE
VERDE

RED
ROT
ROUGE
ROJO

WHITE
WEISS
BLANC
BLANCO

BLACK
SCHWARTZ
NOIR
NEGRO

PARA USAR SOLO EN APLICACIONES DE BANDA

256

228

TERMOPAR TIPO J

COUNT

COM

+ARM

-ARM

111

202

256

CB4-8A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

C1,3

RED
ROT
ROUGE
ROJO

WHITE
WEISS
BLANC
BLANCO

210

CB2-8A

260

RED
ROT
ROUGE
ROJO
WHITE
WEISS
BLANC
BLANCO

GRD
"
GRUN
TERRE
VERDE

224

C1,1

WHITE
WEISS
BLANC
BLANCO

ROUGE
ROJO

RED
ROT

GRUN "
TERRE
VERDE

GRD

129

248
157

MOTEUR DE
REFROIDISSEMENT
MOTOR DE VENTILADOR

BLOWER MOTOR
"
GEBLASE
MOTOREN

133

113

212

131

224

263

280

INTERRUPTOR DE CALENTAMIENTO

COMMUTATEUR DE CHUFFAGE

HEIZUNGSSCHALTER

HEAT SWITCH

TERMOPAR TIPO J

THERMOEOOPLE TYPE J

THERMOFUHLER

THERMOCOUPLE

CONTROLEUR
CONTROLADOR

200

101

GROUND LUG
TERRE PATTE
" ERDUNGSANSCHLUSS
GRUN
..
VERDE LENGUETA

CONTACTOR
"
SCHALTSCHUTZ

131

LOAD
LAST
CHARGE
CARGA

LINE
LINIE
LIGNE
LINEA

CARTE DEFILTRAGE
PLACA DE CIRCUITOSDEL FILTRO

INTERRUPTOR DEL COMPARTIMENTO DE CONTROL DELANTERO

INTERRUPTEUR DU PANNEAU DE COMMANDE AVANT

204

FRNT CNTRL HSG SWITCH
"
VORDERER STEUERGEHAUSESCHALTER

C2,9

LS1

103

RFI-FILTER
"
FUNKENSTROFILTER

C1,12

C2,12

C2,4

C2,5

C2,3

C1,4

C1,5

10 AWG

614

613

149

C1,6

POWER RELAY
EIN/AUS RELAISS
PUISSANCE RELAIS
RELE DE ENCENDIDO

248
157
228
280

255

143

BLUE

607

612

605

307

10 AWG

GRD

BRN

602

BLU

603

280

SSR1

414

301

GRD
"
GRUN
TERRE
VERDE

HEATING ELEMENTS
"
HEIZGERATE
COTE GAUCHE
CALENTADORES

BROWN

Wiring Diagram, E380-480 50/60, 3PH 5W PS536ES

121

CB3-3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

THERMOEOOPLE TYPE J

SPEED CONTROL
GESCHWINDIGKEITSKONTROLLE
REGULATION DE VITESSE
CONTROL DE VELOCIDAD

POUR LES FOURS A TAPIS JUMEAUX EXCLUSIVEMENT

BENUTZT NUR MIT GERTENNTER LAUFBAND

"
FOR SPLIT BELT APPLICATION ONLY

PICK UP
AUFNEHMER
CAPTEUR
CAPTADOR

CB6-0.3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

NO1
NO2
"
L.H DOOR SWITCH
LINKE SEITE TURSCHALTER
COTE GAUCHE COMMUTATEUR
VERROUILLAGE PORTE
LADO IZQUIERDO
INTERRUPTOR PUERTA

THERMOCOUPLE
"
THERMOFUHLER

INTERRUPTOR DE AIRE

INTERRUPTEUR D'AIR

LUFTSCHALTER

AIR SWITCH

238
214

149

115

133

CONVEYOR MOTOR
GLEICHSTROM-BANDMOTOR
MOTEUR DE TRANSPORTEUR CC
MOTOR DE CC DEL TRANSPORTADOR

BLOQUE DE
TERMINALES

TB3
KLEMMLEISTE

216

119

BLACK
SCHWARTZ
NOIR
NEGRO

WHITE
WEISS
BLANC
BLANCO

RED
ROT
ROUGE
ROJO

GRD
"
GRUN
TERRE
VERDE

FAN

RED
ROT
ROUGE
ROJO

VENTILADOR

VENTILATEUR

137

COM1
COM2

206

COM1
COM2

NO1

NO2

XFMR 230/115 0.2 KVA
TRANSFORMATOR

"
GEBLASE

SPEED CONTROL
GESCHWINDIGKEITSKONTROLLE
REGULATION DE VITESSE
CONTROL DE VELOCIDAD

CONVEYOR MOTOR
GLEICHSTROM-BANDMOTOR
MOTEUR DE TRANSPORTEUR CC
MOTOR DE CC DEL TRANSPORTADOR

BOUTON DE COMMANDE
DE REMISE EN MARCHE
INTERRUPTOR DE REAJUSTE

RESET SWITCH
RUCKSTELLSCHALTER

220

234

137

119

CONVEYOR SWITCH
LAUFBANDSSCHALTER
COMMUTATEUR CONVOYEUR
INTERRUPTOR DE TRANSPORTADOR

135

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

115

208

109

214

COM

LS2

COMMUTATEUR VENTILATEUR

TEMPERATURE CONTROL
"
TEMPERATURSCHALTER

LS3

135
125

CB1-3A

9
+8

INTERRUPTOR DE
VENTILATOR-SPOLPADO
CONTROLEUR DE
TEMPERATURE
THERMOSTATO

222

127
11
6

-7

BLOWER SWITCH
"
GEBLASESCHALTER

COM1
COM2

NO1
NO2

105

107

12
5

13
4

404

109

604

208-240V
50/60 HZ

16
G

606

607

HEATER VOLTAGE
(SEE CHART)

10 AWG

610

422

402
501
503
404
301

4
5

C3
A1

308

610

606

605

611

10 AWG

GRD

SSR2

10 AWG

602

526
614
426
326

625
525
613
425
325

10 AWG
POWER RELAY
EIN/AUS RELAISS
PUISSANCE RELAIS
RELE DE ENCENDIDO

RFI FILTER 2
"
FUNKENSTROFILTER
2
CARTE DEFILTRAGE 2
PLACA DE CARCUITOSDEL FILTRO 2

RFI FILTER 1
"
FUNKENSTROFILTER
1
CARTE DEFILTRAGE 1
PLACA DE CARCUITOSDEL FILTRO 1

603

10 AWG

HEATING ELEMENTS
"
HEIZGERATE
COTE GAUCHE
CALENTADORES

406
416

C2,7

222

302
304

503
SSR1

CB8-63A
SSR2

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR
CONTACTOR
"
SCHALTSCHUTZ
CONTROLEUR
CONTROLADOR

513

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR
CONTACTOR
"
SCHALTSCHUTZ
CONTROLEUR
CONTROLADOR

505
515
517

CB7-63A

507
509
511

303
305

408
410
412

519

LOAD

418

LAST

306

CARGA

309

LINEA

420

CHARGE
v

310

LIGNE

LINIE
LINE

210
v

C2,8

TB1
KLEMMLEISTE

58330D

GROUND LUG
TERRE PATTE
" ERDUNGSANSCHLUSS
GRUN
..
VERDE LENGUETA

BLOQUE DE
TERMINALES

SECTION 7
ELECTRICAL SCHEMATICS

521

137

216

BLACK
SCHWARTZ
NOIR
NEGRO

PICK UP
AUFNEHMER
CAPTEUR
CAPTADOR

CB5-0.3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

RED
ROT
ROUGE
ROJO

TC-

TC+

RESET
REINIT
REPOSIEION

232

151

265

RED
ROT
ROUGE
ROJO

BLANC
BLANCO

WHITE
WEISS

BLACK
SCHWARTZ
NOIR
NEGRO

236
234
151

COUNT

COM

+ARM

-ARM

TRANSFORMATEUR
TRANSFORMADOR
H1
X2

XFMR 230/115 0.2 KVA
TRANSFORMATOR

C2,6

ROUGE
ROJO

BLACK
SCHWARTZ
NOIR
NEGRO

PICK UP
AUFNEHMER
CAPTEUR
CAPTADOR

CB6-0.3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

RED
ROT
ROUGE
ROJO

PARA USAR SOLO EN APLICACIONES DE BANDA

POUR LES FOURS A TAPIS JUMEAUX EXCLUSIVEMENT

RED
ROT
ROUGE
ROJO

BLANC
BLANCO

WHITE
WEISS

BLACK
SCHWARTZ
NOIR
NEGRO

256

TERMOPAR TIPO J

THERMOEOOPLE TYPE J

THERMOCOUPLE
"
THERMOFUHLER

COUNT

COM

+ARM

-ARM

111

202

256

CB4-8A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

CB2-8A

C1,3

ROUGE
ROJO

BLANC
BLANCO
RED
ROT

WHITE
WEISS

210

129

TERRE

260
C1,1

ROUGE
ROJO
WHITE
WEISS
BLANC
BLANCO

VERDE
RED
ROT

GRD
"
GRUN

TERRE
VERDE
RED
ROT

224

131

224
CONTACTOR
"
SCHALTSCHUTZ

CONTROLEUR
CONTROLADOR
A2

131

263
3

INTERRUPTOR DE CALENTAMIENTO

COMMUTATEUR DE CHUFFAGE

280

GROUND LUG
TERRE PATTE
" ERDUNGSANSCHLUSS
GRUN
..
VERDE LENGUETA

HEIZUNGSSCHALTER

200

101

HEAT SWITCH

TERMOPAR TIPO J

THERMOEOOPLE TYPE J

THERMOCOUPLE
"
THERMOFUHLER

248
157

MOTEUR DE
REFROIDISSEMENT
MOTOR DE VENTILADOR

GRD
"
GRUN

ROUGE
ROJO
WHITE
WEISS
BLANC
BLANCO

BLOWER MOTOR
"
GEBLASE
MOTOREN

133

113

212

LOAD
LAST
CHARGE
CARGA

LINE
LINIE
LIGNE
LINEA

RFI-FILTER
"
FUNKENSTROFILTER
CARTE DEFILTRAGE
PLACA DE CIRCUITOSDEL FILTRO

INTERRUPTOR DEL COMPARTIMENTO DE CONTROL DELANTERO

INTERRUPTEUR DU PANNEAU DE COMMANDE AVANT

204

FRNT CNTRL HSG SWITCH
"
VORDERER STEUERGEHAUSESCHALTER

C2,9

LS1

103

C1,12

C2,12

C2,4

C2,5

C2,3

C1,4

C1,5

10 AWG

149

C1,6

614

613

POWER RELAY
EIN/AUS RELAISS
PUISSANCE RELAIS
RELE DE ENCENDIDO

248
157
228
280

255

143

Wiring Diagram, E380V 50/60, 3PH 5W PS536ES

SPEED CONTROL
GESCHWINDIGKEITSKONTROLLE
REGULATION DE VITESSE
CONTROL DE VELOCIDAD

CONVEYOR MOTOR
GLEICHSTROM-BANDMOTOR
MOTEUR DE TRANSPORTEUR CC
MOTOR DE CC DEL TRANSPORTADOR

WHITE
WEISS
BLANC
BLANCO

RED
ROT

INTERRUPTOR DE AIRE

ROUGE
ROJO

WHITE
WEISS
BLANC
BLANCO

228

214

121

CB3-3A

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

"
L.H DOOR SWITCH
LINKE SEITE TURSCHALTER
COTE GAUCHE COMMUTATEUR
VERROUILLAGE PORTE
LADO IZQUIERDO
INTERRUPTOR PUERTA

115

INTERRUPTEUR D'AIR

RED
ROT

GRD
"
GRUN

238

133

149

AIR SWITCH
LUFTSCHALTER

TERRE
VERDE

KLEMMLEISTE
BLOQUE DE
TERMINALES

TB3

220

218

TERRE
VERDE

GRD
"
GRUN

FAN

216

119

FOR SPLIT BELT APPLICATION ONLY
"
BENUTZT
NUR MIT GERTENNTER LAUFBAND

139

VENTILADOR

VENTILATEUR

137

206

208

"
GEBLASE

SPEED CONTROL
GESCHWINDIGKEITSKONTROLLE
REGULATION DE VITESSE
CONTROL DE VELOCIDAD

CONVEYOR MOTOR
GLEICHSTROM-BANDMOTOR
MOTEUR DE TRANSPORTEUR CC
MOTOR DE CC DEL TRANSPORTADOR

252
254

218

119

RESET SWITCH
RUCKSTELLSCHALTER
BOUTON DE COMMANDE
DE REMISE EN MARCHE
INTERRUPTOR DE REAJUSTE

220

234

115

COMMUTATEUR CONVOYEUR
INTERRUPTOR DE TRANSPORTADOR

CONVEYOR SWITCH
LAUFBANDSSCHALTER

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR

135

214

COM

COM1
COM2

NO1

NO2

COM1
COM2

NO1
NO2

LS2

COMMUTATEUR VENTILATEUR

TEMPERATURE CONTROL
"
TEMPERATURSCHALTER

LS3

135
125

CB1-3A

9
+8

INTERRUPTOR DE
VENTILATOR-SPOLPADO
CONTROLEUR DE
TEMPERATURE
THERMOSTATO

222

127
11
6

-7

109

105

BLOWER SWITCH
"
GEBLASESCHALTER

COM1
COM2

NO1
NO2

C2,7

12
5

13
4

C2,8

307

Z2
X2

HEATING ELEMENTS
"
HEIZGERATE

COTE GAUCHE
CALENTADORES

607

612

605

10 AWG

GRD

BRN

602

BLU

603

280

SSR1

414

412

604

GRD
"
GRUN
TERRE
VERDE

BLUE

BROWN

404

107

16
G

301

109

222

521

606

503
607

HEATER VOLTAGE
(SEE CHART)

404

10 AWG

610

505
515

503
CB7-63A

507
SSR1

509

CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR
CONTACTOR
"
SCHALTSCHUTZ
CONTROLEUR
CONTROLADOR

513

511

408
410

406
416

301
CIRCUIT BREAKER
TRENNSCHALTERS
DISJONCTEUR
DISYUNTOR
CONTACTOR
"
SCHALTSCHUTZ
CONTROLEUR
CONTROLADOR

303
305

CB8-63A

COTE GAUCHE
CALENTADORES

HEATING ELEMENTS
"
HEIZGERATE

420
X3

422

10 AWG

605

308

10 AWG

606
611

GRD

SSR2

10 AWG

602

603

402
501

519

SSR2

LOAD

517

302
304

LAST

418

CARGA

306

CHARGE

309

LINEA

310

LIGNE
v

LINIE
LINE

210
v

208-240V
50/60 HZ

610

POWER RELAY
EIN/AUS RELAISS
PUISSANCE RELAIS
RELE DE ENCENDIDO

TB1
KLEMMLEISTE

58267D

GROUND LUG
TERRE PATTE
" ERDUNGSANSCHLUSS
GRUN
..
VERDE LENGUETA

BLOQUE DE
TERMINALES

SECTION 7
ELECTRICAL SCHEMATICS

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
During the warranty period, ALL parts replacement and servicing should be performed by
your Middleby Marshall Authorized Service Agent. Service that is performed by parties
other than your Middleby Marshall Authorized Service Agent may void your warranty.
NOTICE
Using any parts other than genuine Middleby Marshall factory manufactured parts relieves
the manufacturer of all warranty and liability.
NOTICE
Middleby Marshall reserves the right to change specifications at any time.

Middleby is proud to support the Commercial Food Equipment
Service Association (CFESA). We recognize and applaud
CFESA's ongoing efforts to improve the quality of technical
service in the industry.

Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • USA • (847)741-3300 • FAX (847)741-4406

24-Hour Service Hotline: 1-(800)-238-8444

www.middleby.com

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Middleby Marshall Ps536 Series Users Manual

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