Middleby Marshall PS314 Owner's Operating & Installation Manual

PS300 Series

Gas and Electric (AGA/UL)

ENGLISH /French/Spanish

All manuals and user guides at all-guides.com

P/N 41823

Rev. B V3 5/00

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

all-guides.com

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 (847)741-3300 FAX (847)741-4406

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.

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 (847)741-3300 FAX (847)741-4406

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

www.middleby.com

2


TABLE OF CONTENTS

page

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

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

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

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

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

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 ...................................................... 16

I.

LOCATION AND DESCRIPTION OF CONTROLS .. 16

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 ................................... 22

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

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

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

3


I. OVEN USES

SECTION 1 - DESCRIPTION

K. Conveyor End Stop: Prevents food products from falling off the end of the moving conveyor.

PS300 Series 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.

Not Shown:

II. OVEN COMPONENTS - see Figure 1-1.

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

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.

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.

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.

A

B C

Fig. 1-1 - Oven Components

D

G

E

J

F

I

H

K

III. OVEN SPECIFICATIONS

A. Dimensions

Overall Height

Lower oven, with top & legs

Upper oven, with stand and top

Double oven

(two-stack)

PS310

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

PS314

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

PS360/360Q/360S PS360 Tandem

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

Overall Depth inc. rear shrouds and front window inc. rear shrouds

(no window)

39

991mm

36"

914mm

39

991mm

36"

914mm

47"

1194mm

44"

1118mm

47"

1194mm

44"

1118mm

Overall Length 90-1/2"

2299mm

70-3/4" *

1797mm *

90-1/2" *

2299mm *

144-1/2"

3670mm

* 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

24"

610mm

--

--

24"

610mm

--

--

32"

813mm

2x15"

381mm

--

32"

813mm

2x15"

381mm

--

PS360WB PS360WB Tandem PS360EWB

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

55"

1397mm

52"

1321mm

90-1/2"

2299mm

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

55"

1397mm

52"

1321mm

144-1/2"

3670mm

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

60"

1524mm

--

--

90-1/2"

2299mm

PS360WB70

45-1/2

1143mm

64-1/2"

1638mm

82-1/4

2089mm

55"

1397mm

--

--

106"

2692mm

40"

1016mm

2x19"

483mm

40"

1016mm

2x19"

483mm

44"

1118mm

2x21"

533mm

40"

1016mm

2x19"

483mm

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

AND AND AND AND

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

Recommended Minimum Clearances

Rear of oven (inc.

1" rear shrouds) to wall 25mm

Conveyor extension to wall (both ends)

0"

0mm

1"

25mm

0"

0mm

1"

25mm

0"

0mm

1"

25mm

0"

0mm

1"

25mm

0"

0mm

1"

25mm

0"

0mm

1"

25mm

0"

0mm

1"

25mm

0"

0mm

4


SECTION 1 - DESCRIPTION

B. General specifications (per oven cavity)

Weight

Shipping Weight

Shipping Carton Vol.

Rated Heat Input

Gas

PS310

1165 lbs./529kg

1241 lbs./563kg

105 ft.

3 /2.98m

3

PS314

1165 lbs./529kg

1241 lbs./563kg

105 ft.

3 /2.98m

3

PS360/360Q/360S

1285 lbs./583kg

1360 lbs./617kg

106 ft.

3 /3.00m

3

PS360WB

1485 lbs./674kg

1560 lbs./708kg

129 ft.

3 /3.65m

3

PS360EWB

1620 lbs./733kg

1695 lbs./767kg

129 ft.

3 /3.65m

3

PS360WB70

1825 lbs./829kg

1900 lbs./863kg

164 ft.

3 /4.65m

3

Electric

Max. Operating Temp.

Air Blowers

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.

26kw/hr.

26kw/hr.

26kw/hr.

----

< - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 550°F/288°C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >

< - - - - - - - - - - - - - - - - 2 blowers at 1550 ft.

3 (43.9m

3 )/min. at 1700 RPM, 0.88"/2.2cm water static pressure - - - - - - - - - - - - - - - >

Air Jet Velocity (avg.) < - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2600 ft./min. (1320cm/sec.) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >

Warmup Time < - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15 minutes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - >

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

PS310

Natural Gas 0.219

5.56mm

PS314

0.219

5.56mm

Main Orifice I.D.

PS360/360Q/360S PS360WB

0.219

5.56mm

0.250

6.35mm

PS360EWB

0.250

6.35mm

PS360WB70

0.250

6.35mm

Pilot

Orifice I.D.

0.028

0.71mm

Bypass

Orifice I.D.

*

0.065/#53 drill

1.65mm

Propane 0.134"

3.40mm

0.134"

3.40mm

0.134"

3.40mm

0.152"

3.86mm

0.165"

4.19mm

0.165"

4.19mm

0.018"

0.46mm

0.034"/#62 drill

0.86mm

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

Supply (inlet) pressure

6-12" W.C.

14.9-29.9mbar

11-14" W.C.

27.4-34.9mbar

Manifold pressure

3-1/2" W.C.

8.7mbar

10" W.C.

24.9mbar

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

PS310/314/360/360Q/

360S/360WB

Main Blower

Voltage

208-240V

208-240V (export)

200-220V (export)

Control

Circuit Voltage

120V

120V (transformer)

120V (transformer)

Phase

1 Ph

1 Ph

1 Ph

Freq.

60 Hz

50/60 Hz

50/60 Hz

PS360EWB/WB70 208-240V 120V conveyor speed controller (transformer); all other control cicuits as per line (208-240V)

1 Ph 60 Hz

Current

Draw

10A

10A

10A

12A

Poles

3 Pole

2 Pole

2 Pole

2 Pole

Wires

4 Wire (2 hot, 1 neut, 1 gnd)

3 Wire (2 hot, 1 gnd)


3 wire (2 hot, 1 gnd)

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

Main Blower

Voltage

208-240V

(with 3 Ph blower motors)

Control

Circuit Voltage

120V

Phase

3 Ph

Freq.

60 Hz

Current

Draw k W

Rating

67.3A at 208V 26.0 kW at 208V

58.4A at 240V 26.0 kW at 240V

120V 3 Ph 60 Hz 208-240V

(with 1 Ph blower motors)

200-220V (export)

240V (export)

380V (export)

400-416V (export)

480V

120V (transfomer)

120V (transformer)

120V (transformer)

120V (transfomer)

120V (transformer)

3 Ph

3 Ph

3 Ph

3 Ph

3 Ph

50/60 Hz

50/60 Hz

50/60 Hz

50/60 Hz

60 Hz

67.3A at 208V 26.0 kW at 208V

58.4A at 240V 26.0 kW at 240V

67.3A at 208V 24.3 kW at 208V

53.5A at 220V 20.4 kW at 220V

58.4A

36.8A

33.8A

29.2A

26.0 kW

24.3 kW

24.3 kW

26.0 kW

Poles Wires

4 Pole 5 Wire (3 hot, 1 neut, 1 gnd)

4 Pole 5 Wire (3 hot, 1 neut, 1 gnd)

3 Pole

3 Pole

3 Pole

3 Pole

3 Pole






IMPORTANT

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

5


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

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 this Manual.

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. Constructional changes to the area where the oven is 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


NOTE

All aspects of the oven installation, including placement, utility connections, and ventilation requirements, must conform with any applicable local, national, or international codes. These codes supercede the requirements and guidelines provided in this manual.

NOTE

all-guides.com

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 requirements of the appropriate statutory authority.

6

I. INSTALLATION KIT

1

2

3

4


5

Fig. 2-1 - Installation Kit

6

7

8

10

9

11

SECTION 2 - INSTALLATION

12

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

6

7

8

9

10

4

5

3c

3c

3d

Item

1

2*

3a

3b

Description

Legs, adjustable

Caster, Swivel (with stud)

Conveyor End Stop - PS310/314

Conveyor End Stop - PS360/360S

Single Belt

Split Belt

Conveyor End Stop - PS360Q

Conveyor End Stop - PS360WB/WB70 (Single or Split Belt)

Conveyor End Stop - PS360EWB

Single Belt

Split Belt: 2x21"/533mm belts

Split Belt: 1x14"/356mm belt +

1x28"/711mm belt

Attachment Plate, upper oven

Thermocouple

Screw, #10-32 x 3/8"

Cable Clamp

Screw, #2PT 10-16 x 3/4" HWH

Owner's Operating and Installation Manual

Authorized Service Agency Listing

Part Number

22450-0028

37115-0102

35000-1099

35000-1103

35509

37000-0524

36526

35900-0370

35900-0370

35509

35000-1099

35122-0049

33812-1

21256-0008

27276-0001

21292-0001

41823

1002040

Lower Oven w/o Top Lower Oven w/Top

4 4

4*

1

4*

1

1

2

1

1

2

2

1

2

1

1

1

1

2

2

--

NOTE

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

1

2

1

1

2

2

1

2

1

1

1

1

2

2

--

B. Additional installation kit components for gas ovens

Item

6

8

11

12a

12b

12c

Description

Screw, #10-32 x 3/8"

Screw, #2PT 10-16 x 3/4" HWH

Gas hose, flexible

Flue vent, 14" (356mm)

Flue vent, 29-1/2" (749mm)

Flue vent, 50" (1270mm)

Part Number

21256-0008

21292-0001

22361-0001

30773

30759

30758

--

--

--

--

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

Item

--

Description

Machinery Compartment Trim Strip

Part Number

35000-1454

Front Gasket Spacer

Rear Gasket Spacer

Baking Chamber Gasket and Frame - PS360

Baking Chamber Gasket and Frame - PS360WB

35000-1456

35000-1457

37200-0013

32483

7

Tandem Oven

1

1

1

2

2

Double (2-stack) Tandem Oven

2

2

2

4

4

Upper Oven

--

4*

1

1

2

1

1

2

2

1

14

1

1

1

1

2

2

2

Lower Oven w/o Top Lower Oven w/Top

1 1

2 2

--

1

1

--

1

1

--

--

Upper Oven

1

2

1

--

1

--



II. VENTILATION SYSTEM

IMPORTANT

Where national or local codes require the installation of fire suppression equipment or other supplementary equipment,

DO NOT mount the equipment directly to the 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 REQUIRED for 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.

B. Recommendations

NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIGURE 2-

2 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

12"

305mm

3"

76mm

8

III. ASSEMBLY



Figure 2-3 - Exploded View, Oven Stand

A. Stacking

If the installation will include upper ovens mounted atop lower ovens:

1. Remove the casters (pre-attached to each oven cavity) from the upper ovens.

2. Stack the oven cavities. If necessary, refer to the Installation

Manual for Model PS310/360 Ovens (Middleby P/N 88210-

0025).

B. Stands

If the installation includes ovens that are to be mounted on stands:

Remove the casters (pre-attached to each oven cavity) and install them on the stands as shown in Figure 2-3.

Assemble the ovens to the stands. An exploded view of the stand is shown in Figure 2-3.

C. Flue Vent(s)

For gas ovens, attach one flue vent to the rear wall of each oven cavity. Use one #10-16 x 3/8" and two #10-32 x 3/4" screws for each flue vent. These screws are provided in the Installation Kit.

Attachment plates inc. w/ upper oven installation kit

Casters inc.

w/oven

Figure 2-4 - Thermocouple Installation Locations

Thermocouples

IV. THERMOCOUPLE INSTALLATION

1. Install one thermocouple sensing bulb into each of the two holes in the rear panel of the oven, as shown in Figure 2-4.

Fasten each thermocouple in place using one of the #10-

32 x 3/8" screws supplied in the Installation Kit.

2. Thread BOTH sets of thermocouple leads through the grommet and into the machinery compartment, as shown in Figure 2-4.

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

4. Thread the thermocouple leads through the side of the machinery compartment as shown in Figure 2-5, and into the electrical box (at the right-front of the machinery compartment).

5. Connect BOTH sets of thermocouple leads to the temperature controller as shown in Figure 2-6. Note that the two thermocouples are now tied together at the temperature controller.

6. Replace the right-side panel of the machinery compartment.

7. Repeat Steps 1-6 for any other oven cavities in the installation.

Grommet-protected hole

Figure 2-5 - Placing the Thermocouple Leads

8=White=Positive

7=Red=Negative

R=No Connection

Figure 2-6 - Thermocouple Lead Connections

Ground=Shielded cable

9



V. TANDEM OVEN ASSEMBLY

NOTE

For non-tandem oven installations, skip ahead to Section VI,

Conveyor Installation.

2. Check that the top and bottom air finger retaining screws are present on all mating ends of the oven sections. See Figure

2-7. The screws prevent the air fingers from sliding in between the oven sections.

1. Determine the proper position of the ovens by referring to

Figure 2-7. Then, move the ovens to their approximate final locations.

3. Remove the rear axial cooling fans that are adjacent to the mating sides of the ovens. The fans may either be completely disconnected, or left attached by their wiring as shown in

Figure 2-8.

LEFT OVEN

Figure 2-7

Oven Positioning and Alignment

Alignment plate

Slot for alignment plate

Air finger retaining screws

RIGHT OVEN

Sealing gasket assembly

(pre-mounted)

NOTE: The Sealing Gasket Assembly may be pre-mounted to EITHER of the oven cavities.

Figure 2-8 - Cooling Fan Removal

Mating surface of ovens (shown from lower rear)

Wiring is still connected

10


4. Insert three of the supplied 1/2 x 5 bolts through the holes in the frame of the right oven, pointing outward as shown in

Figure 2-9. Then, slide the spacers into place on the bolts.


Figure 2-9 - Bolts and Spacers

2-1/2" x 2-1/2"

(64x64mm) spacers

5. Push the ovens together. Check that the mounting bolts, alignment plate, and sealing gasket are all properly aligned.

See Figure 2-10.

6. Tighten all of the attaching bolts. Check that the mating edges of the ovens align properly. If gaps appear between the tops of the ovens, it will be necessary to loosen the connecting bolts and realign the ovens.

2-1/2" x 8"

(64x203mm) spacers

Figure 2-10 - Aligning the Sections

7. Attach the front trim strip between the two ovens, as shown in Figure 2-11.

8. Replace the rear axial cooling fans. See Figure 2-8.

Figure 2-11 - Trim Strip Installation all-guides.com

Trim strip

11



VI. CONVEYOR INSTALLATION

Figure 2-12 - Removing the Conveyor Drive Sprocket

Refer to either Step A or Step B in this section, as appropriate, to install the conveyor and belt.

A. Installing the Conveyor - All ovens EXCEPT Tandem models

NOTE

Split belt conveyors can only be installed from the end of the oven with the drive motor.

Single-belt conveyor assemblies may be inserted into either end of the oven. If it is to be installed from the end of the oven without the drive motor, the drive sprocket assembly must be removed.

To remove the drive sprocket (if necessary), loosen the set screw on the conveyor collar as shown in Figure 2-12. Then, pull the sprocket assembly straight out.

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

Figure 2-13.

Figure 2-13 - Inserting the Conveyor

Loosen conveyor collar set screw, then pull shaft straight out

1

2 3

2. Continue moving the conveyor into the oven until the frame protrudes equally from each end of the oven (about 18"/

457mm).

3. Check that the retainers located on the underside of the conveyor frame rest firmly against the lower end plug, as shown in Figure 2-14.

NOTE:

PS360EWB ovens have a retainer bracket that extends the full width of the conveyor frame on both ends of the frame.

All other ovens have retainer clips as shown in Figure 2-14, located on the drive (left) side of the frame only.

4. When the conveyor is positioned properly, check for freedom of movement of the conveyor belt by pulling it for about

2-3 feet (60 to 90 cm) with your fingers. The conveyor must move freely.

5. If the drive sprocket was removed when installing the conveyor, replace it at this time.

6. Install the drive chain between the conveyor drive sprocket and the motor sprocket. To install the chain, it will be necessary to lift the drive end of the conveyor slightly. The drive motor and sprocket are shown in Figure 2-12.

7. Install the conveyor drive motor cover and tighten its hanger screw (on the rear wall of the oven).

8. Check the tension of the conveyor belt as shown in Figure

2-15. The belt should lift between 3-4" (75-100mm). DO

NOT OVERTIGHTEN THE CONVEYOR BELT.

NOTE:

If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (right) end of the conveyor. See Figure 2-15.

12

Figure 2-14 - Conveyor retainers

Retainers on both ends of

PS360EWB, drive side only for all other ovens

Figure 2-15 - Checking the conveyor tension

3-4"

(75-100mm) vertical deflection

Conveyor tension adjustment screws (idler end only)


B. Installing the Conveyor and Belt - Tandem oven models

NOTE

For non-tandem oven installations, skip ahead to Section VII,

Final Assembly.

1. Insert the conveyor frame into the oven as follows:

Slide one hinged conveyor frame section into each end of the oven. The two sections butt against each other at the gap between the two oven sections. See Figure 2-17.

IMPORTANT

Be sure that the drive section of the conveyor frame is at the same end of the oven as the conveyor drive motor.

2. Slide the conveyor belt through the support rods underneath the frame, and thread it through the oven. Then, reach through the oven window and pull the free end of the belt through the oven so that it lies atop the conveyor frame.

After the belt has been pulled through the oven, check the following:

The conveyor belt links must be oriented as shown in

Figure 2-18.

The smooth side of the conveyor belt must face UP.

3. Connect the inside master links. Check that the links are oriented as shown in Figure 2-18.

4. Connect the outside master links. Note that the outside master links have right and left sides. The right-side master link has an open hook facing you, as shown in Figure 2-19.

5. Check for freedom of movement of the conveyor belt by pulling it for about 2-3 feet (60 to 90 cm) with your fingers. The conveyor must move freely.

6. Check the tension of the conveyor belt as shown in Figure

2-15 (on the previous page). The belt should lift between 3-

4" (75-100mm). DO NOT OVERTIGHTEN THE CONVEYOR

BELT. If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler

(right) end of the conveyor.

7. LOOSELY attach the conveyor drive motor to the end wall of the oven. Refer to Figure 2-12 (for ovens with standard conveyor frames) or Figure 2-20 (for ovens with heavy-duty conveyor frames).

8. Assemble the conveyor drive chain in place on the motor and conveyor drive sprockets.

9. Position the motor to adjust the deflection of the drive chain to 3/4 (19mm). DO NOT OVERTIGHTEN THE DRIVE

CHAIN. Then, tighten the bolts to hold the motor in place.

Hinged end section


Figure 2-17 - Tandem Conveyor Installation

Figure 2-18 - Conveyor and Inside Master Link Orientation

Direction of travel

Figure 2-19 - Outside Master

Link Orientation

Direction of travel

Figure 2-20 - Drive Motor for

Tandem Oven Heavy-Duty

Conveyor Frame

Figure 2-21 - Crumb tray positions

CORRECT master link position

Incorrect master link position

Upper Oven

(Drive End)

Hinged end section

Upper Oven

(Idler End)

VII. FINAL ASSEMBLY

1. Assemble the end plugs and motor housing onto the oven.

These components are shown in Figure 1-1 (on Page 1).

2. Slide the conveyor extensions over the ends of the conveyor frame. Be sure that the extension with the drive sprocket opening is placed on the drive end.

NOTE

The PS360EWB oven does not use conveyor extensions.

3. Refer to Figure 2-21 for the correct location of each crumb tray.

Then, install the crumb trays underneath the conveyor as shown in Figure 2-22. First, place the inside edge of the tray onto the bracket attached to the end plug. Then, swing the outside edge of the tray up and into place.

4. Press the end stop down over the edge of the conveyor extension at the exit end of the oven. See Figure 2-22.

5. After the oven is moved to its final location, adjust the bottom section of the legs so that the oven is level and the casters do not touch the floor.

13

Lower Oven

Figure 2-22 - Crumb trays, extensions, and end stop

End stop

Crumb tray

Conveyor extension Conveyor frame



VIII. ELECTRICAL SUPPLY (all ovens)

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.

CAUTION

Before connecting incoming power to the oven, measure the voltage of each input leg to neutral. The expected voltage is approximately 120V. ANY voltage reading exceeding 130V indicates that the supply has a high leg. CONNECTING A

HIGH LEG TO THE OVEN VOIDS ALL OVEN WARRANTIES.

Connecting a high leg to the black lead of the oven can severely damage the ovens electrical and electronic components.

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.

DO NOT CONNECT BLACK WIRE TO HIGH LEG.

VOLTAGE OF THE BLACK AND WHITE WIRES MUST

BE NO HIGHER THAN 130 VAC.

NOTE: The electric supply connection must meet all national and local electrical code requirements.

Check the oven serial plate before making any electric supply connections. Electric supply connections must agree with data on the oven serial plate. The location of the serial plate is shown in Figure 2-23.

A fused disconnect switch or a main circuit breaker (customer furnished) MUST be installed in the electric supply line for each oven cavity. It is recommended that this switch/circuit breaker have lockout/tagout capability.

A. Additional Information - Electric Ovens

For electric ovens, a 1-1/4" (32mm) dia. cutout in the back wall of the machinery compartment provides access for the electrical supply connections. Using flexible cables for the electric power supply conductors requires a 1-1/4" (32mm) strain-relief fitting (not furnished with the oven) to enable safe access to the terminal block from which power is distributed to the oven.

The supply conductors must be of the size and material (copper) recommended. Refer to the wiring diagram inside the machinery compartment or control compartment of the oven. Electrical specifications are also listed on the oven's serial plate (Figure

2-23) and in the Electrical Specifications table (on Page 5).

The oven requires a ground connection to the oven ground screw located in the electrical junction box. (The box is shown in Figure

2-24.) If necessary, have the electrician supply the ground wire.

Do NOT use the wiring conduit or other piping for ground connections!

Figure 2-23 - Oven Serial Plate

CAUTION

B. Additional Information - Gas Ovens

All gas oven electric supply connections are made via the electrical junction box on the rear of the oven, shown in

Figure 2-24. The power lines then connect to the oven circuits through the Machinery Compartment Access Panel

Safety Switch. This switch interrupts electric power to the oven when the Machinery Compartment Access Panel is opened.

C. Additional Information - Ovens with External Transformers (export versions)

Position the transformer on the rear wall of the oven, on the same side as the control compartment, as space permits.

Fasten it in place using the supplied mounting hardware.

D. Connection

Refer to the wiring diagram inside the machinery compartment or control compartment of the oven to determine the correct connections for the electrical supply lines. Connect the supply as indicated on the wiring diagram. Be sure to connect the electrical supply ground wire to the oven ground screw located in the junction box on the rear of the oven.

Serial plate location

Figure 2-24 - Utility Connection Locations

Figure 2-25 - Flexible Gas

Hose Installation

Electrical

Junction Box

To Gas

Supply Pipe

Gas oven:

3/4" (19mm) pipe for gas utility connection

Electric oven:

1-1/2" (38mm) conduit for electric utility connection

Appliance

Connection/Male

Nipple

90°

Elbow

Full-Flow Gas

Shutoff Valve

NOTE: The location of these components may vary slightly depending on the oven model.

Flexible

Gas Hose

14



IX. GAS SUPPLY (gas ovens only)

CAUTION

DURING PRESSURE TESTING NOTE ONE OF THE FOLLOWING:

1. The oven and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressure in excess of 1/

2 psi (3.45 kPa).

2. The oven must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressure equal to or less than 1/2 psi (3.45 kPa).

3. If incoming pressure is over 14 W.C. (35mbar), a separate regulator MUST be installed in the line BEFORE the individual shutoff valve for the oven.

WARNING: To prevent damage to the control valve regulator during initial turn- on of gas, it is very important to open the manual shutoff valve very slowly.

After the initial gas turn-on, the manual shutoff valve must remain open except during pressure testing as outlined in the above steps or when necessary during service maintenance.

A. Gas Utility Rough-In Recommendations

The following gas system specifications are STRONGLY

RECOMMENDED. Deviating from these recommendations may affect the baking performance of the oven.

Gas Meter

One or two oven cavities: 750 cfh meter

Three or four oven cavities: 1200 cfh meter

Gas Line

DEDICATED LINE from the gas meter to the oven

2" (50.8mm) pipe for natural gas

1-1/2" (38.1mm) pipe for propane

Maximum length: 200' (61m). Each 90° elbow equals 7'

(2.13m) of pipe.

B. Connection

Check the ovens gas supply requirements before making the gas utility connection. Gas supply requirements are listed on the ovens serial plate (Figure 2-23) and in the Gas Orifice and

Pressure Specifications table (Page 5 of this manual).

Check the serial plate to determine the type of gas (Propane or

Natural) to be used with the oven.

Refer to the instructions in the gas hose package (included in the

Installation Kit) before connecting the gas line. One gas line connection method is shown in Figure 2-25; however, compliance with the applicable standards and regulations is mandatory.

Inlet, regulated, and pilot gas pressure readings can be taken using a U tube manometer at the tap locations shown in Figure

2-26.

NOTE

The installation must conform with local codes or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1latest edition.

In Australia, the installation must conform with AGA Code AG601 and with any requirements of the appropriate statutory authority.

CANADIAN:

CAN/CGA-B 149.1 Natural Gas Installation Code

CAN/CGA-B 149.2 Propane Installation Code

Certain safety code requirements exist for the installation of gas ovens; refer to the beginning of Section 2 for a list of the installation standards. In addition, because the oven is equipped with casters, the gas line connection shall be made with a connector that complies with the Standard for Connectors for

Movable Gas Appliances, ANSI Z21.69 (in U.S.A.), or, if applicable, Connectors for Movable Gas Appliances, CAN/CGA-6.16

(in Canada), as well as a quick-disconnect device that complies with the Standard for Quick-Disconnect Devices for Use With

Gas Fuel, ANSI Z21.41 (in U.S.A.), or, if applicable, Quick-

Disconnect Devices for Use With Gas Fuel, CAN1-6.9 (in Canada).

C. Gas Conversion

Where permitted by local and national codes, it is possible to convert ovens from natural to propane gas, or from propane to natural gas. Use the appropriate Middleby Marshall Gas

Conversion Kit for the specific oven model.

WARNING

The terms of the oven's warranty require all start-ups, conversions and service work to be performed by a Middleby

Marshall Authorized Service Agent.

Figure 2-26 - Gas Burner and Piping Assembly

Manifold pressure tap

(where manifold gas pressure is measured)

Burner

Blower

Model PS360EWB Only

Modulating gas valve

NOTE: PS360EWB ovens use a modulating gas valve INSTEAD OF a high flame solenoid valve and low-flame bypass line.

Inlet pressure tap

(where incoming gas pressure is measured)

On/Off Knob

Always leave in

ON position

High Flame

Solenoid Valve

Gas Burner

Pilot pressure tap

(where pilot gas pressure is measured)

Combination Gas

Control Valve

(Safety Regulator)

Manual shutoff valve

15

Low Flame

Bypass Line


SECTION 3 - OPERATION

I. LOCATION AND DESCRIPTION OF CONTROLS

All ovens except PS360EWB and PS360WB70

Fig. 3-1 - Control Panel

PS360EWB and PS360WB70 only

D.

Conveyor Speed

(or " ") controller(s)

D.

Conveyor Speed

(or " ") controller(s)

E.

Digital Temperature

(or " ") controller

A.

"BLOWER"

(or " switch

")

B.

"HEAT"

(or " switch

")

C.

"CONVEYOR"

(or " switch

")

E.

Digital Temperature

(or " ") controller

A.

"BLOWER"

(or " switch

")

B.

"HEAT"

(or " switch

")

C.

"CONVEYOR"

(or " switch

")

A.

B.

C.

"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.

D.

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."

For tandem and double tandem ovens, this control is present only on the left oven section(s).

"HEAT" Switch: Allows the gas burner to light.

Activation of the gas burner is determined by the all-guides.com

"CONVEYOR" Switch: Turns the conveyor drive motor on and off. For tandem and double tandem ovens, this switch is present only on the left oven section(s).

Digital Temperature Controller: Continuously monitors the oven temperature. Settings on the

Digital Temperture Controller control the activation of the gas burner.

NOT SHOWN:

F. Machinery Compartment Access Panel Safety Switch:

Disconnects electrical power to the controls and the blowers when the machinery compartment access panel is opened. The panel should only be opened by authorized service personnel.

16

A. DAILY STARTUP PROCEDURE

2. Turn the "BLOWER" (or ) switch to the ON (or "I") position.


II. NORMAL OPERATION - STEP-BY-STEP

1. Check that the circuit breaker/fused disconnect is in the on position. If the oven is equipped with a window, check that the window is closed.

or

SECTION 3 - OPERATION

7. 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.

8.

(Optional) Press the Temperature ( ) 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.

wait for

3. Turn the "CONVEYOR" (or

) switch to the ON

(or "I") position.

or

4. If necessary, adjust the conveyor speed setting by turning the three thumbwheels to change the displayed bake time.

mins secs thumbwheels

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

B. DAILY SHUTDOWN PROCEDURE

1. Turn the "HEAT" (or ) and "BLOWER" (or ) switches to the "OFF" (or

"O") position. Note that the blowers will remain in operation until the oven has cooled to below

200°F (93°C).

+

- - - - - or - - - - -

+

5. Adjust the temperature controller to a desired set temperature, if necessary.

Press the Set Point and Unlock keys at the same time. Wait for the "SET PT" light to turn on.

+

wait for

2. Make certain that there are no products left on the conveyor inside the oven.

Turn the "CONVEYOR" (or

) switch to the "OFF"

(or "O") position.

or

○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

Press the Up Arrow and Down Arrow

Keys as necessary to adjust the setpoint.

or

3. If the oven is equipped with a window, open the window to allow the oven to cool faster.

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

6. Turn the "HEAT" (or ) switch to the "ON" (or "I") position, and wait for the

"HEAT ON" light to turn on.

or

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.

wait for

CAUTION

In case of power failure, turn all switches to the OFF (or "O") position, open the oven window, and remove the product.

After the power has been restored, perform the normal startup procedure.

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.

17



III. QUICK REFERENCE: DIGITAL TEMPERATURE CONTROLLER

"SP LOCK" Light

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

Display

Shows the Set

Point or the Actual

Temperature in degrees Fahrenheit (F) or Celsius

(C).

OVERTEMP Light

Lights when the oven temperature is greater than 650°F

(343°C). Refer to

Quick Reference:

Troubleshooting in this section.

Temperature Key

Press this key once to view the

Actual Temperature in the Display.

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.

"HEAT ON" Light

Lights when the burner is in operation. Note that on all ovens EXCEPT the

PS360EWB, this light cycles on and off during normal operation.

"SET PT" (setpoint)

Light

Lights when the set point is shown in the display.

Set Point Key

"ACTUAL TEMP"

Light

Lights when the

Actual Temperature is shown in the display.

Service Key

For use by service personnel only.

Press this key together with the

Unlock Key to allow the Set Point to be changed.

Changes can only be made for

60 seconds.

18



V. QUICK REFERENCE: TROUBLESHOOTING

SYMPTOM PROBLEM

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

SOLUTION

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.

light is lit, food product is undercooked

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" (or ) Switch is in the ON (or "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" (or )

Switch to the ON (or "I") position. This automatically engages a safety lockout mode.

Turn the "HEAT" (or ), "BLOWER" (or ) , and "CONVEYOR"

(or )switches to the "OFF" (or "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" (or ), "BLOWER" (or ) , and "CONVEYOR"

(or )switches to the "OFF" (or "O") position.


Repeat the Daily Startup procedure.

appears in display, oven is not heating

Oven will not heat

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

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

Controls may be set incorrectly.

Check that the Set Point is correctly set.

Check that both the "BLOWER" (or ) and "HEAT" (or )

Switches are in the ON (or "I") position.

If the oven still will not heat, turn the "HEAT" (or ), "BLOWER"

(or ) , and "CONVEYOR" (or )switches to the "OFF" (or "O") position.


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

Air fingers may have been reassembled incorrectly after cleaning.

Turn the oven off, and allow it to cool. Disconnect electrical power to the oven.

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

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

Turn the oven off, 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.

Food products are overcooked or undercooked.

Controls may be set incorrectly.

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

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.

19


SECTION 4 - MAINTENANCE

WARNING

Before ANY cleaning or servicing of the oven, 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 the electric supply circuit breaker(s) and disconnect the electric supply to the oven.

3. If it is necessary to move the oven for cleaning or servicing, disconnect the gas supply connection before moving the oven.

When all cleaning and servicing is complete:

1. If the oven was moved for servicing, return the oven to its original location. Adjust the legs so that they are seated properly on the floor.

2. Reconnect the gas supply.

3. Reconnect the electrical supply.

4. Turn on the full-flow gas safety valve. Test the gas line connections for leaks using approved leak test substances or thick soap suds.

5. Turn on the electric supply circuit breaker(s).

6. Perform the normal startup procedure.

WARNING

Possibility of injury from moving parts and electrical shock exists in this oven. Switch off and lockout/tagout the electric supply BEFORE beginning to disassemble, clean, or service any oven. Never disassemble or clean an oven with the

BLOWER switch or any other circuit of the oven switched on.

CAUTION

NEVER use a water hose or pressurized steam-cleaning equipment when cleaning this oven. DO NOT use excessive amounts of water, to avoid saturating the oven insulation. DO NOT use a caustic oven cleaner, which can damage the aluminized bake chamber surfaces.

NOTE

ANY replacement parts that require access to the interior of the oven may ONLY be replaced by a Middleby Marshall

Authorized Service Agent.

NOTE

It is strongly recommended that the 3-Month Maintenance and 6-Month Maintenance procedures in this section be performed ONLY by a Middleby Marshall Authorized Service Agent.

20

I. MAINTENANCE - DAILY


SECTION 4 - MAINTENANCE

Figure 4-1 - Cooling Fan/Vent Locations:

All ovens except PS360EWB and PS360WB70

A. Check that the oven is cool and the power is disconnected, as described in the warning on Page 20.

B. Clean the outside of the oven with a soft cloth and mild detergent.

Vents in top rear edge of upper oven

C. Clean ALL of the cooling fan grills and vent openings with a stiff nylon brush. Refer to Figures 4-1, 4-2, and 4-3 for the locations of the grills and vents.

D. Check that ALL cooling fans are operating properly.

FRONT

REAR

CAUTION

If a cooling fan is not operating correctly, it must be replaced

IMMEDIATELY. Operating the oven without adequate cooling can seriously damage the oven's internal components.

Vents in floor of lower oven

2 rear fans, upper and lower ovens

E. Clean the conveyor belts with a stiff nylon brush. This is more easily accomplished by allowing the conveyor to run while you stand at the exit end of the conveyor. Then, brush the crumbs off the conveyor as it moves.

F. Remove and clean the crumb trays. Be sure to replace the trays in the same positions from which they were removed, because they are NOT identical. Refer to the drawings on Page 10 in the Installation section.

G. OVENS EQUIPPED WITH WINDOWS ONLY: Clean the window in place.

Figure 4-2 - Cooling Fan/Vent Locations: PS360EWB

2 front fans, upper and lower ovens

Vents on each side of rear panel, upper and lower ovens

Vents in top rear edge of upper oven

FRONT

REAR

Vents on each side of floor panel of lower oven

Figure 4-3 - Cooling Fan/Vent Locations: PS360WB70 all-guides.com

lower ovens

2 side vents, upper and lower ovens

REAR

FRONT

21



II. MAINTENANCE - MONTHLY

Figure 4-4 - Removing Air Fingers and Plates

NOTE

Air Finger When removing the conveyor, refer to the drawings on Pages 12-

13 in the Installation section.


B. Remove the drive motor shroud and conveyor extension covers from the oven. Disconnect the drive chain from the sprocket on the drive shaft of the conveyor.

Blank Plate

C. Slide the conveyor out of the oven.

NOTE

Split belt conveyors can only be removed from the end of the oven with the drive motor.

Single-belt conveyor assemblies may be removed from either end of the oven. If it is to be removed from the end of the oven without the drive motor, the drive sprocket assembly must be removed.

To remove the drive sprocket (if necessary), loosen the set screw on the conveyor collar as shown in Figure 2-12 (on

Page 12). Then, pull the sprocket assembly straight out.

D. Remove the end plugs from the oven. The end plugs are shown in Figure 1-1, on Page 4 of this Manual.

E. Slide the air fingers and blank plates out of the oven, as shown in Figure 4-4. AS EACH FINGER OR PLATE IS

REMOVED, WRITE A "LOCATION CODE" ON IT WITH A

MARKER to make sure that it can be reinstalled correctly.

Example of markings:

(Top Row) T1 T2 T3 T4 T5 T6

(Bottom Row) B1 B2 B3 B4 B5 B6

F. Disassemble the air fingers as shown in Figure 4-5. AS

EACH FINGER IS DISASSEMBLED, WRITE THE "LOCA-

TION CODE" FOR THE FINGER ON ALL THREE OF ITS

PIECES. This will help you in correctly reassembling the air fingers.

CAUTION

Incorrect reassembly of the air fingers will change the baking properties of the oven.

G. Clean the air finger components and the interior of the baking chamber using a vacuum cleaner and a damp cloth.

Refer to the boxed warnings on Page 20 for cleaning precautions.

H. Reassemble the air fingers. Then, replace them in the oven, using the "location code" as a guide.

I.

Replace the end plugs on the oven.

J. Reassemble the conveyor into the oven. If the drive sprocket was removed when installing the conveyor, replace it at this time.

K. Reattach the drive chain.

L. Check the tension of the conveyor belt as shown in Figure

2-15 (on Page 12). The belt should lift between 3-4" (75-

100mm). DO NOT OVERTIGHTEN THE CONVEYOR BELT.

If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (right) end of the conveyor.

M. Replace the drive motor shroud and the conveyor extensions.

22

Figure 4-5 - Disassembling the Air Fingers

Manifold

Inner plate

Outer Plate

2

Pull outer plate straight up and off

1

Step on lip of manifold

4

3

Swing ends of inner plate and manifold apart

Pull inner plate upwards, and then away from manifold


III. MAINTENANCE - EVERY 3 MONTHS


IV. MAINTENANCE - EVERY 6 MONTHS



B. Vacuum both of the blower motors, and their surrounding compartments, using a shop vacuum.

B. Check for excessive wear on the conveyor drive motor brushes. The brushes should be replaced if they have worn to less than 1/4" (6.4mm) in length.

C. Tighten all electrical control terminal screws.

D. For split belt ovens ONLY, disassemble, clean and lubricate the conveyor shaft components as described below.

C. Clean and inspect the burner nozzle and electrode assembly.

1. Remove the motor shroud, conveyor extensions, and conveyor as described in Part II, Monthly Maintenance.

2. Remove the master links from each conveyor belt.

Then, roll the belts up along the length of the conveyor to remove them from the frame.

3. Remove the two conveyor adjustment screws from the idler end of the conveyor frame, as shown in Figure 4-

6.

4. For PS360EWB and PS360WB70 ovens, remove the socket head screw as shown in the inset drawing.

Then, loosen the locking collar set screw. Push the shaft assembly toward the locking collar until it is free.

5. Remove the idler shaft assembly from the conveyor.

6. Pull apart the two sections of the idler shaft. Clean the shafts thoroughly using a rag. Then, lubricate both the extended shaft and the interior of the hollow shaft using a light food-grade lubricant.

CAUTION

DO NOT lubricate the shafts using WD40 or a similar product. This can cause the shafts to wear rapidly.

7. Before reassembling the shafts into the conveyor frame, check that they are oriented properly. Remember that unequal-width split belt ovens should ALWAYS have the narrower belt at the front of the oven.

8. Reassemble the idler shaft into the conveyor. For all ovens except the PS360EWB and PS360WB70, make sure that the bronze washer is in place between the two sections of the shaft. See Figure 4-8.

9. Loosen the set screw on both of the conveyor drive sprockets. Then, remove the sprockets from the shaft.

10. Loosen the locking collar set screw, as shown in Figure

4-7. For PS360EWB and PS360WB70 ovens, remove the socket head screw shown in the inset drawing.

11. Push the drive shaft to the right, then lift it free of the conveyor frame. Then, disassemble and lubricate the two sections of the drive shaft as described in Step 5.

12. Before reassembling the shafts into the conveyor frame, check that they are oriented properly. Remember that unequal-width split belt ovens should ALWAYS have the narrower belt at the front of the oven.

13. Reassemble the drive shaft into the conveyor. Check that the nylon spacer is in place, as shown in Figure 4-

8. Also, for all ovens except the PS360EWB and

PS360WB70, check that the bronze washer is in place between the two sections of the shaft.

14. Replace the drive sprockets. Reassemble the belts and master links onto the conveyor, and replace the conveyor in the oven.

15. Reassemble the motor shroud and conveyor extensions onto the oven.

23

D. Check (and clean, if necessary) the oven venting system, including the flue.

E. Check the conveyor drive shaft bushings and spacers.

Replace the components if they are worn.

Collar

PS360EWB and

PS360WB70

Only

Figure 4-6 - Split Belt Idler Shaft

All ovens

Nylon spacer on drive shaft

ONLY

All ovens except

PS360EWB and

PS360WB70

Bronze washer on

BOTH idler and drive shafts

All ovens

Conveyor adjustment screw (2)

Figure 4-7 - Split Belt Drive Shaft

All ovens

Locking collar

PS360EWB and

PS360WB70 Only

PS360EWB and

PS360WB70 Only

Figure 4-8 - Washers and Spacer

Screw

Screw



V. KEY SPARE PARTS KIT - Available separately. See Figure 4-9.

A. Key Spare Parts Kit components (all ovens)

Item

1 1

2 1

3 2

4 1

5 1

6 1

7a 1

7b 1

8a 1

8b 1

8c 1

8d 1

8e 1

Description

Kit, Digital Temperature Controller

Conveyor Drive Motor

Brushes, Conveyor Drive Motor

Kit, Conveyor Speed Controller

Conveyor Control Pickup Assembly

Thermocouple

Cooling Fan (PS310, 314, 360, 360Q,

360S, 360WB)

Cooling Fan (PS360EWB, WB70)

Blwr Mtr, 1 Ph, 1/3 HP (PS310, 314, 360, 360S)

Blower Motor, 3 Ph, 1/3 HP (PS310, 314, 360)

Blower Motor, 1 Ph, 1/4 HP (PS360Q)

Blower Motor, 1 Ph, 1/2 HP (PS360WB)

Blower Motor, 1 Ph, 1 HP (PS360EWB, WB70)

Part Number

36939

27384-0008

22450-0052

42810-0133

27170-0263

33984

27392-0002

36451

27381-0023

27381-0024

27381-0054

27381-0075

31432

B. Additional Key Spare Parts Kit components for gas ovens

Item

9 1

10a 1

10b 1

11 1

12 1

13 1

14 1

Description

Kit, Ignition Module

Burner Blower/Motor Assembly

(PS310, 314, 360, 360Q, 360S, 360WB)

Part Number

42810-0114

27170-0011

Burner Blower/Motor Assembly (PS360EWB, WB70) 38811

Solenoid Valve (All ovens EXCEPT PS360EWB)

Modulating Valve (PS360EWB)

28091-0017

32570

Amplifier, Modulating Valve (PS360EWB)

Air Switch (PS360EWB, WB70)

31651

32102

1 2

Fig. 4-9 - Key Spare Parts Kit

3 4 5 6

7 8

9 10 11 12 13 14

IMPORTANT


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

24

Middleby Marshall PS314 Owner's Operating & Installation Manual

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.

WARNING

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.

Retain This Manual For Future Reference

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

www.middleby.com

TABLE OF CONTENTS

I. OVEN USES

SECTION 1 - DESCRIPTION

II. OVEN COMPONENTS - see Figure 1-1.

III. OVEN SPECIFICATIONS

*

IMPORTANT

SECTION 2 - INSTALLATION

WARNING -

WARNING

WARNING

WARNING

CAUTION

NOTE

NOTE

NOTE

NOTE

NOTE

NOTE

I. INSTALLATION KIT

II. VENTILATION SYSTEM

IMPORTANT

Where national or local codes require the installation of fire suppression equipment or other supplementary equipment,

DO NOT mount the equipment directly to the oven.

MOUNTING SUCH EQUIPMENT ON

THE OVEN MAY:

 VOID AGENCY CERTIFICATIONS

 RESTRICT SERVICE ACCESS

 LEAD TO INCREASED SERVICE

EXPENSES FOR THE OWNER

III. ASSEMBLY

IV. THERMOCOUPLE INSTALLATION

V. TANDEM OVEN ASSEMBLY

VI. CONVEYOR INSTALLATION

VII. FINAL ASSEMBLY

VIII. ELECTRICAL SUPPLY (all ovens)

IX. GAS SUPPLY (gas ovens only)

CAUTION

SECTION 3 - OPERATION

I. LOCATION AND DESCRIPTION OF CONTROLS

II. NORMAL OPERATION - STEP-BY-STEP

or

or

+

- - - - - or - - - - -

+

+

or

or

PS310

PS314

PS360/360Q/360S

PS360WB

PS360EWB

PS360WB70

Single Lower Oven

Single Upper Oven on Stand

Double Oven (Two-Stack)

Tandem Oven

Double (Two-Stack) Tandem Oven

VOID AGENCY CERTIFICATIONS

RESTRICT SERVICE ACCESS

LEAD TO INCREASED SERVICE