Middleby Marshall PS360 User Manual 3

Gas PS360/PS360WB Tandem (AGA), English

A MIDDLEBY COMPANY

owner's operating
& installation manual

SERIES PS360/PS360WB

TANDEM GAS OVEN MODELS

PS360/PS360WB Tandem Oven

PS360/PS360WB Double Tandem Oven

© 1999 Middleby Marshall Inc.

PS360/PS360WB Tri Tandem Oven

PS360/PS360WB Quad Tandem Oven

P/N 39223

Rev. B  V2  3/99

Price $30.00

NOTICE:

This Operating and Installation Manual should be given to the user. The operator of the oven should be familiar
with the functions and operation of the oven.

This manual must be kept in a prominent, easily reachable location near the oven.

The oven has a combustion system suitable for use with all natural gases and can be converted by a qualified
service agent for use with liquified gas.

It is suggested to obtain a service contract with a manufacturer's certified service agent.

WARNING

POST, IN A PROMINENT LOCATION, THE EMERGENCY TELEPHONE NUMBER OF YOUR LOCAL GAS SUP-

PLIER AND INSTRUCTIONS TO BE FOLLOWED IN THE EVENT YOU SMELL GAS.

Instructions to be followed in the event the user smells gas shall be obtained by consulting the local gas supplier. If

the smell of gas is detected, immediately call the emergency phone number of your local Gas Company. They will

have personnel and provisions available to correct the problem.

FOR YOUR SAFETY

Do not store or use gasoline or other

flammable vapors or 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, operating and maintenance

instructions thoroughly before installing or servicing

this equipment.

NOTICE

CONTACT YOUR LOCAL SERVICE COMPANY TO PERFORM MAINTENANCE AND REPAIRS.

A SERVICE AGENT DIRECTORY IS SUPPLIED IN YOUR INSTALLATION KIT.

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.

NOTICE

The equipment warranty is not valid unless the oven is installed, started and demonstrated under

the supervision of a factory certified installer.

Retain This Manual For Future Reference

Middleby Marshall Inc.  1400 Toastmaster Drive  Elgin, IL 60120  USA  [phone]  FAX [phone]

Middleby Corporation Service Hotline [phone]

www.middleby.com

i

MIDDLEBY MARSHALL INC.

NO QUIBBLE LIMITED WARRANTY

(U.S.A. ONLY)

MIDDLEBY MARSHALL INC.

OVEN LIMITED WARRANTY

(Non U.S.A.)

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 SHIPMENT, WHICHEVER IS EARLIER;
PROVIDED THAT TERMS OF PAYMENT HAVE BEEN FULLY
MET.

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

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

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.

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 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 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 to
be 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.

This warranty is not valid unless equipment is installed,
started, and demonstrated under the supervision of a
factory certified 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.

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.

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

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 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 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.

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.

ii

TABLE OF CONTENTS

page

SECTION 1 - DESCRIPTION ................................................. 1-1

I. OVEN SPECIFICATIONS .................................... 1-1

A. Physical Specifications ................................. 1-1

B. General Specifications .................................. 1-1

C. Electrical Specifications ................................ 1-1

D. Gas Orifice and Pressure Specifications ........ 1-1

II. OVEN USES ....................................................... 1-2

III. OVEN COMPONENTS ........................................ 1-2

A. Conveyor Drive Motor .................................... 1-2

B. Air Fingers .................................................... 1-2

C. Conveyor ...................................................... 1-2

D. Window ........................................................ 1-2

E. Oven Data Plate ............................................ 1-2

F. Crumb Pans .................................................. 1-2

G. Control Panel ................................................ 1-2

H. Machinery Compartment Access Panel .......... 1-2

I. End Panels ................................................... 1-2

J. Conveyor End Stop ....................................... 1-2

K. Conveyor Extension Covers .......................... 1-2

L. Gas Burner ................................................... 1-2

M. Blowers ........................................................ 1-2

N. Cooling Fans ................................................. 1-2

page

SECTION 3 - OPERATION .................................................... 3-1

I. LOCATION AND DESCRIPTION OF CONTROLS 3-1

A. BLOWER Switch .......................................... 3-1

B. HEAT Switch ................................................ 3-1

C. CONVEYOR Switch ...................................... 3-1

D. Digital Temperature Controller ....................... 3-1

E. Conveyor Speed Display ............................... 3-1

F. Conveyor Speed Adjustment Knob ................. 3-1

G. Conveyor Speed Controller ............................ 3-1

H. Machinery Cpt. Access Panel Safety Switch .. 3-1

II. NORMAL OPERATION, STEP-BY-STEP ............ 3-2

A. Daily Startup Procedures ............................... 3-2

B. Daily Shutdown Procedures ........................... 3-2

III. QUICK REFERENCE: BAKE TIME ...................... 3-3

IV. QUICK REFERENCE: DIGITAL TEMP CONTROL 3-3

V. QUICK REFERENCE: TROUBLESHOOTING ...... 3-4

SECTION 4 - MAINTENANCE ............................................... 4-1

I. MAINTENANCE - DAILY ...................................... 4-2

II. MAINTENANCE - MONTHLY ............................... 4-3

III. MAINTENANCE - EVERY 3 MONTHS ................. 4-4

IV. MAINTENANCE - EVERY 6 MONTHS ................. 4-4

SECTION 2 - INSTALLATION ............................................... 2-1

I. INSTALLATION KIT ............................................. 2-2

II. TRANSITION CHAMBER COMPONENTS ........... 2-2

III. VENTILATION SYSTEM ...................................... 2-3

A. Requirements ................................................ 2-3

B. Recommendations ......................................... 2-3

C. Other Ventilation Concerns ............................ 2-3

IV. THERMOCOUPLE INSTALLATION ...................... 2-4

V. ASSEMBLY ......................................................... 2-5

A. Oven Stand ................................................... 2-5

B. Joining the Oven Bodies ................................ 2-5

C. Installing the Center Transition ....................... 2-7

D. Installing the Conveyor Frame and Belt ........... 2-9

VI. ELECTRICAL SUPPLY ....................................... 2-12

VII. GAS SUPPLY .................................................... 2-13

A. Connection ................................................... 2-13

B. Gas Conversion ........................................... 2-14

SECTION 5 - ELECTRICAL SCHEMATICS ............................ 4-1

I. WIRING DIAGRAM, PS360/PS360WB

Tandem & Double Tandem Ovens ......................... 4-1

II. WIRING DIAGRAM, PS360/PS360WB

Tri Tandem & Quad Tandem Ovens ....................... 4-2

iii

SECTION 1

DESCRIPTION

SECTION 1

DESCRIPTION

I. OVEN SPECIFICATIONS

A. PHYSICAL SPECIFICATIONS

Tandem Double Tandem Tri Tandem Quad Tandem

PS360 PS360WB PS360 PS360WB PS360 PS360WB PS360 PS360WB

Dimensions:

Overall Height (inc. top) 45-1/2 45-1/2 81-1/2 81-1/2 64-1/2 64-1/2 64-1/2 64-1/2

Overall Depth (inc. motor 52 60 52 60 52 60 52 60
shroud and window) 1321mm 1524mm 1321mm 1524mm 1321mm 1524mm 1321mm 1524mm

Overall Depth (inc. motor 49 57 49 57 49 57 49 57
shroud - no window) 1245mm 1448mm 1245mm 1448mm 1245mm 1448mm 1245mm 1448mm

Overall Length 144-1/2 144-1/2 144-1/2 144-1/2 199 199 273-1/2 273-1/2

Conveyor Width 32 40 32 40 32 40 32 40

Recommended Minimum

Clearances:

Rear of Oven (inc. motor 1 1 1 1 1 1 1 1
shroud) to Wall 25mm 25mm 25mm 25mm 25mm 25mm 25mm 25mm

Conveyor Extension to Wall 0 0 0 0 0 0 0 0
(both ends) 0mm 0mm 0mm 0mm 0mm 0mm 0mm 0mm

1156mm 1156mm 2070mm 2070mm 1638mm 1638mm 1638mm 1638mm

3670mm 3670mm 3670mm 3670mm 5055mm 5055mm 6947mm 6947mm

813mm 1016mm 813mm 1016mm 813mm 1016mm 813mm 1016mm

B. GENERAL SPECIFICATIONS (per oven section)

PS360 PS360WB

Weight 1350 lbs. (612kg) 1400 lbs. (634kg)

Shipping Weight 1675 lbs. (760 kg) 1750 lbs. (780kg)

Shipping Cube Approx. 104.5 ft3 (3.0 m3) Approx. 122 ft.3 (3.5m3)

Rated Heat Input 135,000 BTU (34,020 kcal, 40 kW/hr) 170,000 BTU (42,840 kcal, 50 kW/hr)

Maximum Operating Temperature 550°F (288°C)

Air Blowers Two blowers at 1550 ft.3/min. (43.9m3/min.) at 1700 rpm

Average Air Jet Velocity 2600 ft./min. (1320cm/sec.)

Warmup Time 15 min.

Flue Vent 1.08" (27mm) D x 3" (76mm) W

Exhaust Flow 80 ft.3/min. (2.1 m3/min.)

0.88 (2.2cm) Water Static Pressure

C. ELECTRICAL SPECIFICATIONS (per oven section)

Main Blower Voltage Control Circuit Voltage Phase Freq Current Draw Poles Wires

208-240V 120V 1 Ph 50/60Hz 8A 3 Pole 4 Wire (2 hot, 1 neut, 1 gd)

190/200/208/220/380V (export)

110V (transformer) 1 Ph 50Hz 8 A 2 Pole 3 Wire (2 hot, 1 gd)

D. GAS ORIFICE AND PRESSURE SPECIFICATIONS (per oven section)

Gas Type Main Orifice I.D. Main Orifice I.D. Pilot Orifice Bypass Orifice Supply (Inlet) Orifice (Manifold)

(PS360) (PS360WB) I.D. I.D. Pressure Pressure

Natural 0.219 0.250 0.028 0.065/#53 drill 6-12 W.C. 3.5 W.C.

Propane 0.134 0.152 0.018 0.034/#62 drill 11-14 W.C. 10 W.C.

(5.56mm) (6.35mm) (0.71mm) (1.65mm) (14.9-29.9mbar) (8.7mbar)

(3.40mm) (3.86mm) (0.46mm) (0.86mm) (27.4-34.9mbar) (24.9mbar)

1-1

SECTION 1
DESCRIPTION

II. OVEN USES

PS360/PS360WB Tandem Ovens can be used to
bake and/or cook a wide variety of food products, such
as pizza, pizza-type products, cookies, sandwiches
and others.

III. OVEN COMPONENTS

A. Conveyor

Drive Motor

(inside shroud)

L. Crumb Pan

K. Conveyor

Extension

Covers

B. Air Fingers

(inside baking

chamber)

J. Conveyor

End Stop

D. Front

C. Conveyor

I. End Panels

Loading

Window

H. Machinery

Compartment

Access Panel

Figure 1-1 - Oven Components

E. Oven Data

Plate

F. Crumb Pan

G. Control

Panel

A. Conveyor Drive Motor: Moves the conveyor.
B. Air Fingers: Project streams of hot air onto the food

product.

C. Conveyor: Moves the food product through the oven.
D. Window (on ovens so equipped): Allows the user

to see and access food products inside the baking
chamber.

E. Oven Data Plate: Provides specifications for the

oven that affect installation and operation. Refer to
Section 2, Installation, for details.

F. Crumb Pans: Catch crumbs and other material that

drop through the conveyor belt. One crumb pan is
located at each end of the conveyor.

G. Control Panel: Location of the operating controls for

the oven. Refer to Section 3, Operation, for details.

H. Machinery Compartment Access Panel: Allows

access to the oven's interior components. No user­servicable parts are located in the machinery compart­ment.

I. End Panels: Allow access to the oven's interior

components. No user-servicable parts are located
inside the end panels.

J. Conveyor End Stop (not present on ovens with

heavy-duty conveyor): Prevents food products from

falling off the end of the moving conveyor.

K. Conveyor Extension Covers (not present on ov-

ens with heavy-duty conveyor): Cover the ends of

the conveyor frame. One cover is located at each end
of the conveyor.

Not Shown:

L. Gas Burner: Heats air, which is then projected to the

air fingers by the blowers. The burner is turned on and
off according to the settings on the Digital Temperature
Controller (located on the Control Panel).

M. Blowers: Fans that project hot air from the burner to

the air fingers.

N. Cooling Fans: Cool the interior of the oven to protect

the components.

1-2

SECTION 2

INSTALLATION

SECTION 2

INSTALLATION

WARNING

Do not obstruct the flow of combustion and ventilation air to and from your oven. There must be no

obstructions around or underneath the oven.

CAUTION

For additional installation information, refer to the PS360 Pre-Installation Procedures Manual (Middleby

Marshall P/N 88210-0024) or contact your local Authorized Service Agent.

NOTE

There must be adequate clearance between the oven and combustible construction. Clearance must

also be provided for servicing and for operation.

NOTE

Wiring diagrams are contained in this manual (Section 5, Electrical Schematics) and are also

located inside the Machinery Compartment Access Panel.

NOTE

All aspects of the oven installation, including placement, utility connections, and ventilation requirements, must

conform with any applicable local and national codes. These codes supercede the requirements and guidelines

provided in this manual.

NOTE

In U.S.A., the oven installation must conform with local codes, or in the absence of local codes, with the National

Fuel Gas Code, ANSI Z223.1. 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.

NOTE

In Canada, the oven installation must conform with local codes, or in the absence of local codes, with the Natural

Gas Installation Code, CAN/CGA-B149.1, or the Propane Gas Installation Code, CAN/CGA-B149.2, as applicable.

The oven, when installed, must be electrically grounded in accordance with local codes, or in the absence of local

codes, with the Canadian Electrical Code CSA, C22.2, as applicable.

NOTE

For Australian installation, the oven installation must conform with AGA Code, AG601, and with any requirements of

the appropriate statutory authority.

2-1

SECTION 2
INSTALLATION

I. INSTALLATION KIT

Fig. 2-1 - Installation Kit

Item Part # Description Tandem Double Tandem Tri Tandem Quad Tandem

1 22361-0001 Flexible Gas Hose 2434
2 22450-0028 Adjustable Legs 8 8 12 16
3 30773 Flue Vent, 14"Lg. 2 - - ­4 30759 Flue Vent, 29-1/2"Lg. - 2 3 4
5 30758 Flue Vent, 50" Lg. - 2 - ­6 21256-0008 Screw, 10-32 x 3/8 A/R A/R A/R A/R
7 35000-1103 Conveyor End Stop - PS360 1 2 - -

35000-1899 Conveyor End Stop - PS360WB
8 21292-0001 Scr, #2PT 10-16 x 3/4 Hx Wsh A/R A/R A/R A/R
9 33984 Thermocouple 2434

10 27276-0001 Cable Clamp 2434
11 1002040 Warranty, Parts & Serv. Dist.List 1111
12 39223 Owners Operating and Installation Manual (English) 1111
13 27126-0238 11 Piece Hex Key Set 1111
14 31389 Silicone Tubing, 36 (914mm) L x 2434

- 35000-1454

- 35000-1456 Front Gasket Spacer 2444

- 35000-1457 Rear Gasket Spacer 2444

- 37200-0013
32483

5/16 (8mm) ID x 7/16 (11mm) OD
Machinery Compartment Trim Strip

Baking Chamber Gasket and Frame - PS360
Baking Chamber Gasket and Frame - PS360WB

1222

1222

II. TRANSITION CHAMBER COMPONENTS (Quad Tandem Ovens Only)

Qty. Part # Description

1 48009-0025 Side Wall
1 35000-1748 Rear Support
2 35000-1749 Front Support
2 37000-0697 Top Support Channel - PS360

32455 Top Support Channel - PS360WB

Qty. Part # Description

1 37000-0696 Floor Panel - PS360

32457 Floor Panel - PS360WB

1 48009-0024 Top Panel - PS360

32456 Top Panel - PS360WB

2-2

III. VENTILATION SYSTEM

IMPORTANT

Where national or local codes require

the installation of fire suppression

equipment or other supplementary

equipment, DO NOT mount the equip-

ment directly to the oven.

MOUNTING SUCH EQUIPMENT ON

THE OVEN MAY:

 VOID AGENCY CERTIFICATIONS
 RESTRICT SERVICE ACCESS
 LEAD TO INCREASED SERVICE

EXPENSES FOR THE OWNER

A. REQUIREMENTS

A mechanically driven ventilation system is required for the
oven.

PROPER VENTILATION OF THE OVEN IS THE
RESPONSIBILITY OF THE OWNER.

B. RECOMMENDATIONS

NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIG­URE 2-2 ARE RECOMMENDATIONS ONLY. LOCAL
AND NATIONAL CODES WILL VARY, AND MUST BE
FOLLOWED WHEN INSTALLING THE VENTILATION
SYSTEM. ANY APPLICABLE LOCAL AND NATIONAL
CODES SUPERSEDE THE RECOMMENDATIONS
SHOWN IN THIS MANUAL.

SECTION 2

INSTALLATION

The rate of air flow exhausted through the ventilation
system may vary depending on the oven configuration and
hood design. Consult the hood manufacturer or ventilation
engineer for these specifications.

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 (HVAC) system. Through the HVAC system,
the air can be temperature-controlled for summer and
winter. Return air can also be brought in directly from
outside the building, but detrimental effects can result from
extreme seasonal hot and cold temperatures from the
outdoors.

NOTE: Return air from the mechanically driven system
must not blow at the opening of the baking chamber. Poor
oven baking performance will result.

C. OTHER VENTILATION CONCERNS

 Special locations, conditions, or problems may re-

quire the services of a ventilation engineer or special-

ist.
 Inadequate ventilation can inhibit oven performance.
 It is recommended that the ventilation system and

duct work be checked at prevailing intervals as speci-

fied by the hood manufacturer and/or HVAC engineer

or specialist.

Fig. 2-2 - Ventilation System

2-3

IV.

THERMOCOUPLE

INSTALLATION

1. Install the thermocouple sensing bulb into the correct
hole in the rear of the oven, as shown in Figure 2-3.

2. Thread the thermocouple lead through the grommet
and into the machinery compartment.

Thread lead into

machinery

compartment here

Thread lead into

machinery

compartment here

Use for conveyor

Use for conveyor

Figure 2-3

Thermocouple Installation Locations

3. Remove the right-side access panel of the machinery
compartment.

4. Thread the thermocouple lead through the side of the
machinery compartment as shown in Figure 2-4, and
into the electrical box (at the right-front of the machin­ery compartment).

5. Connect the thermocouple leads to the temperature
controller as shown in Figure 2-5.

6. Repeat Steps 1-5 for each of the other oven sections in
the installation.

Figure 2-4

Placing the Thermocouple Leads

Figure 2-5

Thermocouple Lead

Connections

8=White=Positive

7=Red=Negative

R=No Connection

Ground=Shielded cable