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ENGLISH

I.  MAINTENANCE - DAILY

A. Check that the oven is cool and the power is disconnected,

as described in the warning at the beginning of this Section.

B. Clean ALL of the cooling fan grills and vent openings with a

stiff nylon brush.  Refer to Figure 4-1 for the locations of the

grills and vents.

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

detergent.

D. Check that ALL cooling fans are operating properly.

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 compo-

nents.

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 Figure 2-12 (in

Section 2, Installation).

G. Clean the window (if so equipped) in place.

SECTION 4 - MAINTENANCE

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 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.  It is also 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.

Figure 4-1 -Cooling Vents and Grills

Vents on

front panel

of  oven

Vents on rear of

machinery

compartment

access panel

Grills/vents

on rear of

oven

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 a gas oven for cleaning or servicing, disconnect the gas supply 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.

2. For gas ovens, reconnect the gas supply.

3. Reconnect the electrical supply.

4. If the restraint cable was disconnected to clean or service

the oven, reconnect it at this time.

5. For gas ovens, turn on the full-flow gas safety valve.  Test

the gas line connections for leaks using approved leak

test  substances  or  thick  soap  suds.

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

7. Perform the normal startup procedure.

Summary of Contents for Model PS536

Page 1: ...741 4406 OWNER S OPERATING INSTALLATION MANUAL 2000 Middleby Marshall Inc is a registered trademark of Middleby Marshall Inc All rights reserved PS536 Gas and Electric Ovens PS536 Gas Electric Domesti...

Page 2: ...r 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...

Page 3: ...Installation 11 TABLEOFCONTENTS V FINALASSEMBLY 12 VI ELECTRICAL SUPPLY 13 A Additional Information Gas Ovens 13 B Additional Information Electric Ovens 13 C Connection 13 VII GAS SUPPLY 13 A Gas Uti...

Page 4: ...he environment D End Plugs Allow access to the oven s interior E Control Panel Location of the operating controls for the oven Refer to Section 3 Operation for details F Machinery Compartment Access P...

Page 5: ...ications per oven cavity Orifice Manifold Gas Type Main Orifice I D Pilot Orifice I D Supply Inlet Pressure Pressure Natural 0 0935 2 3749mm 42 drill 0 028 0 71mm 4 7 W C 9 95 17 4mbar 3 5 W C 8 7mbar...

Page 6: ...nual WARNING For gas ovens after any conversions readjustments or service work on the oven Perform a gas leak test Test for correct air supply Test for proper combustion and gas supply Check that the...

Page 7: ...893 Base pad 8a 4 4 42890 17 1 2 445mm leg extension for single and double ovens 8b 4 44799 6 152mm leg extension for triple ovens 9 2 2 2 22290 0009 Caster with flat plate and brake 10 2 2 2 22290 00...

Page 8: ...he 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 locatio...

Page 9: ...locking casters should be installed at the FRONT of the oven The non locking casters should be installed at the REAR of the oven 3 Install the top panel in place on the top oven cavity using the screw...

Page 10: ...ure that the insulation faces up 3 Place the center oven cavity for triple ovens or the top oven cavity for double ovens on top of the spacer Check that all four sides of the spacer overlap the base o...

Page 11: ...e of the conveyor frame that are in the slotted holes DO NOT TIGHTEN THE OTHER BOLTS This fastens the two frame sections together at the correct belt tension while still allowing the frame to be folde...

Page 12: ...nst the lower end plugs as shown in Figure 2 10 8 When the conveyor is positioned properly check for free dom of movement of the conveyor belt by pulling it for about 2 3 feet 60 to 90 cm with your fi...

Page 13: ...box shown in Figure 2 13 The power lines then connect to the oven circuits through a safety switch located inside the machinery compart ment This switch interrupts electric power to the oven when the...

Page 14: ...AN CGA B 149 2 as applicable In Australia the installation must conform with AGA Code AG601 and with any requirements of the appropriate statutory authority Certain safety code requirements exist for...

Page 15: ...plays the bake time Single belt ovens have one controller Split belt ovens have one controller for each conveyor belt labeled FRONT and BACK Digital Temperature Controller Continuously monitors the o...

Page 16: ...e of 500 F 232 C in approximately 15 minutes 8 Allow the oven to preheat for 10 minutes after it has reached the set point temperature Heating elements on Oven temperature under 200 F 93 C 1 Turnthe H...

Page 17: ...Arrow key Decreases the set point temperature Press the key once to change the set point by one degree Hold the key down for largerchanges light Illuminates when the burner or heating elements are on...

Page 18: ...starting the oven Repeat the Daily Startup Procedure Check that the Set Point is above 200 F 93 C Oven is operating but little or no air is blowing from air fingers Air fingers may have been reassembl...

Page 19: ...e 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 b...

Page 20: ...plates out of the oven as shown in Figure 4 2 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...

Page 21: ...sition the steel spacers against the ends of the bushings on the conveyor frame Tighten the set screws on the spacers to hold them in place Leave the conveyor belt sprockets loose at this time i Repla...

Page 22: ...aft bushings and spacers Replace the components if they are worn Fig 4 7 Key Spare Parts Kit 1 2 3 7 4 5 6 9 10 11 15 12 13 16 17 14 E Blower Belt 1 Remove the six screws shown in Figure 4 6 Then remo...

Page 23: ...TMENT S A F E T Y SWITCH MOTOR COMPARTMENT S A F E T Y SWITCH CIRCUIT BREAKER 2A TRANSFORMER 240V PRI 120V SEC CONVEYOR SPEED CONTROLLER DRIVE MOTOR BLOWER SWITCH H E A T SWITCH AIR PRESSURE SWITCH TE...

Page 24: ...T CONTROL MODULE R E S E T SWITCH THERMO COUPLE RESET LAMP MACHINERY COMPARTMENT S A F E T Y SWITCH MOTOR COMPARTMENT S A F E T Y SWITCH CIRCUIT B R E A K E R 2 A TRANSFORMER 208V PRI 120V SEC CONVEYO...

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