Middleby Marshall Oven PS310 User Manual

PS300 Series
Gas and Electric (AGA/UL)
ENGLISH/French/Spanish

P/N 41823

Rev. B  V3  5/00

page 1page 25página 49

ENGLISHFRANÇAISESPAÑOL

PS300 Series Gas and Electric Ovens

Models:

 PS310
 PS314
 PS360/360Q/360S
 PS360WB
 PS360EWB
 PS360WB70

Combinations:

 Single Lower Oven
 Single Upper Oven on Stand
 Double Oven (Two-Stack)
 Tandem Oven
 Double (Two-Stack) Tandem Oven

OWNER'S OPERATING

& INSTALLATION

MANUAL

© 2000 Middleby Marshall, Inc.

is a registered trademark of Middleby Marshall, Inc. All rights reserved.

Middleby Cooking Systems Group  1400 Toastmaster Drive  Elgin, IL 60120  [phone]  FAX [phone]

1

NOTICE:

This Owner's 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.

ENGLISH

Gas ovens are designed for use with EITHER natural gas OR liquid propane gas, as specified on the serial plate.
Where permitted by local and national codes, the oven can be converted from natural gas to propane operation,
or from propane to natural gas operation. This conversion requires the installation of the appropriate Middleby
Marshall Gas Conversion Kit by an Authorized Service Agent.

It is suggested to obtain a service contract with a Middleby Marshall Authorized Service Agent.

WARNING

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

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

Instructions to be followed in the 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.

IMPORTANT

An electrical wiring diagram for the oven is located inside the machinery

compartment or control compartment.

IMPORTANT

It is the customer's responsibility to report any concealed or non-concealed damage

to the freight company. Retain all shipping materials until it is certain that the

equipment has not suffered concealed shipping damage.

NOTICE: CONTACT YOUR MIDDLEBY MARSHALL AUTHORIZED SERVICE AGENT TO PERFORM MAINTENANCE
AND REPAIRS. AN AUTHORIZED SERVICE AGENCY 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 Cooking Systems Group  1400 Toastmaster Drive  Elgin, IL 60120  USA  [phone]  FAX [phone]

24-Hour Service Hotline: [phone]

www.middleby.com

2

TABLE OF CONTENTS

page page

SECTION 1 - DESCRIPTION .................................................... 4

IV. THERMOCOUPLE INSTALLATION .......................... 9

I. OVEN USES ............................................................. 4

II. OVEN COMPONENTS ............................................. 4

A. Crumb Pans ..................................................... 4

B. Conveyor Drive Motor ........................................ 4

C. Conveyor ........................................................... 4

D. End Plugs ......................................................... 4

E. Serial Plate........................................................ 4

F. Window ............................................................. 4

G. Machinery Compartment Access Panel ........... 4

H. Control Compartment Access Panel ............... 4

I. Control Panel .................................................... 4

J. Eyebrows .......................................................... 4

K. Conveyor End Stop ........................................... 4

L. Gas Burner ........................................................ 4

M. Blowers ............................................................. 4

N. Air Fingers ......................................................... 4

III. OVEN SPECIFICATIONS ......................................... 4

V. TANDEM OVEN ASSEMBLY .................................... 10

VI. CONVEYOR INSTALLATION ................................... 12

A. All Non-Tandem Ovens ................................... 12

B. Tandem Oven Models ..................................... 13

VII. FINAL ASSEMBLY ................................................... 13

VIII. ELECTRICAL SUPPLY ........................................... 14

A. Electric Ovens .................................................. 14

B. Gas Ovens .......................................................14

C. Ovens with External Transformers .................. 14

D. Connection.......................................................14

IX. GAS SUPPLY .......................................................... 15

A. Gas Utility Rough-In Recommedations .......... 15

B. Connection .......................................................15

C. Gas Conversion ............................................... 15

SECTION 3 - OPERATION ...................................................... 1 6

I. LOCATION AND DESCRIPTION OF CONTROLS .. 16

ENGLISH

A. Dimensions ...................................................... 4

B. General Specifications ..................................... 5

C. Gas Orifice and Pressure Specifications ......... 5

D. Electrical Specifications - Gas Ovens .............. 5

E. Electrical Specifications - Electric Ovens ......... 5

SECTION 2 - INSTALLATION .................................................. 6

I. INSTALLATION KIT .................................................. 7

A. Components ..................................................... 7

B. Additional Components - Gas Ovens .............. 7

C. Additional Components - Tandem Ovens ........ 7

II. VENTILATION SYSTEM ............................................ 8

A. Requirements ................................................... 8

B. Recommendations ........................................... 8

C. Other Ventilation Concerns .............................. 8

III. ASSEMBLY ............................................................... 9

A. Stacking ............................................................ 9

A. BLOWER ( ) Switch ...................................... 16

B. HEAT ( ) Switch ............................................ 16

C. CONVEYOR ( ) Switch ............................... 16

D. Conveyor Speed Controller ............................. 16

E. Digital Temperature Controller ........................ 16

F. Machinery Cpt. Access Panel Safety Switch .... 16

II. NORMAL OPERATION, STEP-BY-STEP ................. 17

A. Daily Startup Procedures ................................. 17

B. Daily Shutdown Procedures ............................ 17

III. QUICK REFERENCE: DIGITAL TEMP CONTROL . 18

IV. QUICK REFERENCE: TROUBLESHOOTING ........ 19

SECTION 4 - MAINTENANCE .. ............................................... 20

I. MAINTENANCE - DAILY .......................................... 21

II. MAINTENANCE - MONTHLY ................................... 2 2

III. MAINTENANCE - EVERY 3 MONTHS ..................... 23

IV. MAINTENANCE - EVERY 6 MONTHS ..................... 23

B. Stands ............................................................... 9

V. KEY SPARE PARTS KIT .......................................... 24

3

SECTION 1 - DESCRIPTION

I. OVEN USES

PS300 Series Ovens can be used to bake and/or cook a
wide variety of food products, such as pizza, pizza-type

ENGLISH

products, cookies, sandwiches and others.

II. OVEN COMPONENTS - see Figure 1-1.

A. Crumb Pans: Catch crumbs and other material that drop

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

B. Conveyor Drive Motor: Moves the conveyor.
C. Conveyor: Moves the food product through the oven.
D. End Plugs: Allow access to the oven's interior.
E. Serial Plate: Provides specifications for the oven that affect

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

F. Window (on ovens so equipped): Allows the user to see

and access food products inside the baking chamber.

G. Machinery Compartment Access Panel: Allows access to

the oven's interior components. No user-servicable parts
are located in the machinery compartment.

H. Control Compartment Access Panel: Allows access to the

control components. This panel is combined with the
Machinery Compartment Access Panel on PS360EWB and
WB70 ovens. No user-servicable parts are located in the
control compartment.

I. Control Panel: Location of the operating controls for the

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

J. Eyebrows (on ovens so equipped): Can be adjusted to

various heights to prevent heat loss into the environment.

K. Conveyor End Stop: Prevents food products from falling off

the end of the moving conveyor.

Not Shown:

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

fingers by the blowers.

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

fingers.

N. Air Fingers: Project streams of hot air onto the food product.

Fig. 1-1 - Oven Components

B

C

D

E

F

H

A

G

I

J

K

III. OVEN SPECIFICATIONS

A. Dimensions

Overall Height

Lower oven,
with top & legs

Upper oven,
with stand and top

Double oven
(two-stack)

Overall Depth

i

nc. rear shrouds

and front window
inc. rear shrouds

(no window)

Overall Length

* NOTE: The PS314 and PS360Q dimensions do NOT include the optional end trays.

Conveyor Width

Single Belt

Split Belt,
identical width

Split Belt,
unequal width

Recommended Minimum Clearances

Rear of oven (inc.
rear shrouds) to wall

Conveyor extension
to wall (both ends)

PS310 PS314 PS360/360Q/360S PS360 Tandem PS360WB PS360WB Tandem PS360EWB PS360WB70

45-1/2 45-1/2 45-1/2 45-1/2 45-1/2 45-1/2 45-1/2 45-1/2

1143mm 1143mm 1143mm 1143mm 1143mm 1143mm 1143mm 1143mm

64-1/2" 64-1/2" 64-1/2" 64-1/2" 64-1/2" 64-1/2" 64-1/2" 64-1/2"

1638mm 1638mm 1638mm 1638mm 1638mm 1638mm 1638mm 1638mm

82-1/4 82-1/4 82-1/4 82-1/4 82-1/4 82-1/4 82-1/4 82-1/4

2089mm 2089mm 2089mm 2089mm 2089mm 2089mm 2089mm 2089mm

39 39 47" 47" 55" 55" 60" 55"

991mm 991mm 1194mm 1194mm 1397mm 1397mm 1524mm 1397mm

36" 36" 44" 44" 52" 52" -- --

914mm 914mm 1118mm 1118mm 1321mm 1321mm -- --

90-1/2" 70-3/4"

2299mm 1797mm

24" 24" 32" 32" 40" 40" 44" 40"

610mm 610mm 813mm 813mm 1016mm 1016mm 1118mm 1016mm

-- -- 2x15" 2x15" 2x19" 2x19" 2x21" 2x19"

-- -- -- -- 1x13"/330mm 1x13"/330mm 1x14"/356mm 1x13"/330mm

1" 1" 1" 1" 1" 1" 1" 1"

25mm 25mm 25mm 25mm 25mm 25mm 25mm 25mm

0" 0" 0" 0" 0" 0" 0" 0"

0mm 0mm 0mm 0mm 0mm 0mm 0mm 0mm

*

90-1/2" * 144-1/2" 90-1/2" 144-1/2" 90-1/2" 106"

*

2299mm * 3670mm 2299mm 3670mm 2299mm 2692mm

381mm 381mm 483mm 483mm 533mm 483mm

4

AND AND AND AND

1x26"/660mm 1x26"/660mm 1x28"/711mm 1x26"/660mm

SECTION 1 - DESCRIPTION

B. General specifications (per oven cavity)

PS310 PS314 PS360/360Q/360S PS360WB PS360EWB PS360WB70

Weight

Shipping Weight

Shipping Carton Vol.

1165 lbs./529kg 1165 lbs./529kg 1285 lbs./583kg 1485 lbs./674kg 1620 lbs./733kg 1825 lbs./829kg
1241 lbs./563kg 1241 lbs./563kg 1360 lbs./617kg 1560 lbs./708kg 1695 lbs./767kg 1900 lbs./863kg

105 ft.3/2.98m

3

105 ft.3/2.98m

3

106 ft.3/3.00m

3

129 ft.3/3.65m

3

129 ft.3/3.65m

3

164 ft.3/4.65m

3

Rated Heat Input

Gas

135,000 BTU 135,000 BTU 135,000 BTU 170,000 BTU 175,000 BTU 175,000 BTU

34,020kcal,40kw/hr. 34,020kcal,40kw/hr. 34,020kcal, 40kw/hr. 42,840kcal, 50kw/hr. 44,100kcal, 52kw/hr. 44,100kcal, 52kw/hr.

Electric

26kw/hr. 26kw/hr. 26kw/hr. -- -- --

Max. Operating Temp. < - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 550°F/288°C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >

Air Blowers

Air Jet Velocity (avg.)

Warmup Time

< - - - - - - - - - - - - - - - - 2 blowers at 1550 ft.3 (43.9m3)/min. at 1700 RPM, 0.88"/2.2cm water static pressure - - - - - - - - - - - - - - - >
< - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2600 ft./min. (1320cm/sec.) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >
< - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15 minutes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >

C. Gas orifice and pressure specifications - for gas-fired ovens (per oven cavity)

Natural Gas

PS310 PS314 PS360/360Q/360S PS360WB PS360EWB PS360WB70 Orifice I.D. Orifice I.D.

Main Orifice I.D.

0.219 0.219 0.219 0.250 0.250 0.250 0.028 0.065/#53 drill 6-12" W.C. 3-1/2" W.C.

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

Pilot Bypass Supply (inlet) Manifold

*

pressure pressure

ENGLISH

Propane

0.134" 0.134" 0.134" 0.152" 0.165" 0.165" 0.018" 0.034"/#62 drill 11-14" W.C. 10" W.C.

3.40mm 3.40mm 3.40mm 3.86mm 4.19mm 4.19mm 0.46mm 0.86mm 27.4-34.9mbar 24.9mbar

* NOTE: The PS360EWB gas oven does not use a bypass orifice.

D. Electrical specifications - for gas-fired ovens (per oven cavity)

Main Blower Control Current

Voltage Circuit Voltage Phase Freq. Draw Poles Wires

PS310/314/360/360Q/
360S/360WB

208-240V 120V 1 Ph 60 H z 10A 3 Pole 4 Wire (2 hot, 1 neut, 1 gnd)
208-240V (export) 120V (transformer) 1 Ph 50/60 Hz 10A 2 Pole 3 Wire (2 hot, 1 gnd)
200-220V (export) 120V (transformer) 1 Ph 50/60 Hz 10A 2 Pole 3 Wire (2 hot, 1 gnd)

PS360EWB/WB70

208-240V 120V conveyor speed 1 Ph 60 Hz 12A 2 Pole 3 wire (2 hot, 1 gnd)

controller (transformer);

all other control cicuits

as per line (208-240V)

E. Electrical specifications - for electrically-heated ovens (per oven cavity)

Main Blower Control Current kW

Voltage Circuit Voltage Phase Freq. Draw Rating Poles Wires

208-240V 120V 3 Ph 60 H z 67.3A at 208V 26.0 kW at 208V 4 Pole 5 Wire (3 hot, 1 neut, 1 gnd)

(with 3 Ph blower motors) 58.4A at 240V 26.0 kW at 240V

208-240V 120V 3 Ph 60 H z 67.3A at 208V 26.0 kW at 208V 4 Pole 5 Wire (3 hot, 1 neut, 1 gnd)

(with 1 Ph blower motors) 58.4A at 240V 26.0 kW at 240V

200-220V (export) 120V (transfomer) 3 P h 50/60 Hz 67.3A at 208V 24.3 kW at 208V 3 Pole 4 Wire (3 hot, 1 gnd)

53.5A at 220V 20.4 kW at 220V

240V (export) 120V (transformer) 3 Ph 50/60 Hz 58.4A 26.0 kW 3 Pole 4 Wire (3 hot, 1 gnd)

380V (export) 120V (transformer) 3 Ph 50/60 Hz 36.8A 24.3 kW 3 Pole 4 Wire (3 hot, 1 gnd)

400-416V (export) 120V (transfomer) 3 P h 50/60 Hz 33.8A 24.3 kW 3 Pole 4 Wire (3 hot, 1 gnd)

480V 120V (transformer) 3 P h 60 Hz 29.2A 26.0 kW 3 Pole 4 Wire (3 hot, 1 gnd)

IMPORTANT

Additional electrical information is provided on the oven's serial plate, and on the wiring diagram inside the machinery
compartment.

5

ENGLISH

The oven must be installed on an even (level) non-flammable flooring and any adjacent walls must
be non-flammable. Recommended minimum clearances are specified in the Description section of

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. Constructional changes to the area where the oven is

SECTION 2 - INSTALLATION

WARNING - After any conversions, readjustments, or service work on the oven:

 Perform a gas leak test.
 Test for correct air supply, particularly to the burner blower.
 Test for proper combustion and gas supply.
 Check that the ventilation system is in operation.

WARNING

Keep the appliance area free and clear of combustibles.

WARNING

this Manual.

WARNING

installed shall not affect the air supply to the oven.

CAUTION

For additional installation information, refer to the following documents:

PS360 Pre-Installation Procedures Manual (Middleby Marshall P/N 88210-0024)

PS360 Installation Manual (Middleby Marshall P/N 88210-0025)

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 proper operation.

NOTE

An electrical wiring diagram for the oven is located inside the machinery compartment or control

compartment.

NOTE

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

must conform with any applicable local, national, or international codes. These codes supercede the require-

ments 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 accor-

dance 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 require-

ments of the appropriate statutory authority.

6

I. INSTALLATION KIT

1

3

2

SECTION 2 - INSTALLATION

Fig. 2-1 - Installation Kit

5

4

6

7

8

11

10

9

12

A. Installation kit components (one kit required per cavity)

Item Description Part Number Lower Oven w/o Top Lower Oven w/Top Upper Oven

1 Legs, adjustable 22450-0028 4 4 -­2* Caster, Swivel (with stud) 37115-0102 4* 4* 4*
3a Conveyor End Stop - PS310/314 35000-1099 1 1 1
3b Conveyor End Stop - PS360/360S

 Single Belt 35000-1103 1 1 1

 Split Belt 35509222
3c Conveyor End Stop - PS360Q 37000-0524 1 1 1
3c Conveyor End Stop - PS360WB/WB70 (Single or Split Belt) 36526111
3d Conveyor End Stop - PS360EWB

 Single Belt 35900-0370 2 2 2

 Split Belt: 2x21"/533mm belts 35900-0370 2 2 2

 Split Belt: 1x14"/356mm belt + 35509111

1x28"/711mm belt 35000-1099 1 1 1
4 Attachment Plate, upper oven 35122-0049 -- -- 2
5 Thermocouple 33812-1 2 2 2
6 Screw, #10-32 x 3/8" 21256-0008 2 2 2
7 Cable Clamp 27276-0001 1 1 1
8 Screw, #2PT 10-16 x 3/4" HWH 21292-0001 2 2 14
9 Owner's Operating and Installation Manual 41823111

10 Authorized Service Agency Listing 1002040 1 1 1

ENGLISH

NOTE

* The 4 swivel casters (Item 2) are pre-attached to each oven cavity for ease of movement during installation.

B. Additional installation kit components for gas ovens

Item Description Part Number Lower Oven w/o Top Lower Oven w/Top Upper Oven

6 Screw, #10-32 x 3/8" 21256-0008 1 1 1
8 Screw, #2PT 10-16 x 3/4" HWH 21292-0001 2 2 2

11 Gas hose, flexible 22361-0001 1 1 1
12a Flue vent, 14" (356mm) 30773 -- 1 - ­12b Flue vent, 29-1/2" (749mm) 30759 -- -- 1
12c Flue vent, 50" (1270mm) 30758 1 -- - -

C. Additional installation kit components for tandem ovens (not shown)

Item Description Part Number Tandem Oven Double (2-stack) Tandem Oven

--

-- Front Gasket Spacer 35000-1456 2 4

-- Rear Gasket Spacer 35000-1457 2 4

--

--

Machinery Compartment Trim Strip

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

35000-1454 1 2

37200-0013 1 2

32483 1 2

7

SECTION 2 - INSTALLATION

II. VENTILATION SYSTEM

IMPORTANT

ENGLISH

Where national or local codes require the

installation of fire suppression equip­ment or other supplementary equipment,
DO NOT mount the equipment 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

CAUTION

 A mechanically driven ventilation system is

gas oven installations.

 A mechanically driven ventilation system is STRONGLY

RECOMMENDED for electric oven installations.

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

REQUIRED for

B. Recommendations

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

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 require the

services of a ventilation engineer or specialist.
 Inadequate ventilation can inhibit oven performance.
 It is recommended that the ventilation system and duct work

be checked at prevailing intervals as specified by the hood

manufacturer and/or HVAC engineer or specialist.

18"

458mm

Fig. 2-2 - Ventilation System

2"/51mm
minimum

18"

458mm

8

12"

305mm

3"

76mm