background image

4.

To change the conveyor belt speed, push the “TIME”
button. The controller will display the screen, shown in
Figure 3-5. To change the minute setting, push the “

arrow button. Then push either the “

” arrow or “

” arrow

buttons to increase or decrease the time accordingly. To
change the second setting, push the “

” arrow button.

Then push either the “

” arrow or “

” arrow buttons to

increase or decrease the time accordingly. When the
proper times are entered, push the “ENTER/RESET” but-
ton. The controller will now show the display shown in
Figure 3-3.

B.

Daily Startup Procedure

1.

Check that the circuit breaker/fused disconnect is in the On
position. Check that the window is closed. The touch panel
display should be lit.

2.

Adjust the conveyor to the desired bake time.

3.

Press the temperature button to display the oven setting.
Set temperature as desired.

4.

Press the “ON” button to activate the oven. The conveyor
will not run, until the oven temperature has reached the
set points.

BELT 01 SPEED

LEFT FOR MINUTES - RIGHT FOR SECONDS

4m

.

 30s

.

C.

Daily Shutdown Procedure

1.

Make certain there are no products left on the conveyor in
the oven.

2.

Press the “ON/OFF” button to turn the oven off.

3.

Open the window to allow the oven to cool faster.

4.

After the oven has cooled and the blowers have turned off, the
circuit breaker/fused disconnect may be turned off.

Quick Reference – Touch Screen Controller

A.

Main Screen

1.

ON/OFF button - Used to turn oven On and Off.

2.

TIME - See Separate Instructions.

3.

TEMP - See Separate Instructions.

4.

Energy level indicators - Indicators to either side of the
screen indicate the energy input to that side of the oven.

5.

Message bar - Indicates various messages pertaining to
current oven conditions.

B.

Oven Temperature/Set Point/Indicator Screen

1.

Actual temperature - Indicates current average tempera-
ture of the right side of the oven.

2.

Set point temperature - Pressing on this value allows the
user to adjust the set point of the oven.

3.

Exit - Returns to the main screen.

C.

Energy Modes

Energy Mode One - This mode is automatic, and starts (bake
time +1 minute) after the last product has entered
the oven. In this mode, the main oven blowers will lower to 1200
RPM, while the oven maintains temperature and belt speed.

Figure 3-5 Belt Speed Screen

ON/OFF button

TIME button

TEMP button

Message Bar

18

Summary of Contents for PS640G

Page 1: ...emark of Middleby Marshall Inc All rights reserved Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin IL 60120 847 741 3300 FAX 847 741 4406 PS640 Series Gas Ovens P N 60251 August 2007 PS640...

Page 2: ...e number of your local Gas Company They will have personnel and provisions available to correct the problem WARNING FORYOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN...

Page 3: ...ALLY THERE ARE NO IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE The foregoing shall be Seller s sole and exclusive obligation and Buyer s sole and exclusive remedy for a...

Page 4: ...s 8 IV ASSEMBLY 9 A Base Pad Legs Casters 9 B Stacking 10 C Restraint Cable Installation 10 D Conveyor Installation 11 E Standoff Installation 11 V FINAL ASSEMBLY 12 VI ELECTRICAL SUPPLY 12 Connection...

Page 5: ...roducts inside the baking chamber G Machinery Compartment Access Panel Allows access to the oven s interior and control components No user serviceable parts are located in the machinery compart ment H...

Page 6: ...gd Table 1 4 Gas orifice and pressure specifications for PS640G gas ovens Gas Main Orifice I D Supply Inlet Orifice Manifold Bypass Type PS640G Pressure Pressure Pressure Natural 0 120 6 12 W C 14 9...

Page 7: ...ent on all sides CAUTION For additional installation information contact your local Authorized Service Agent NOTE There must be adequate clearance between the oven and combustible construction Clearan...

Page 8: ...N59726 PS640 Single Gas Oven 1 1 PS640 Double Gas Oven 2 1 PS640 Triple Gas Oven 3 1 2 3 4 6 5 1 PARTS LIST FOR SERIES PS640 GAS OVEN INSTALLATION KIT P N 51100 Two required for double oven Three req...

Page 9: ...1 1 60287 COMPLETE BASE WELDMENT 2 4 37900 0024 TOP PLATE LEG WELDMENT 3 2 22290 0009 SWIVEL CASTER W BRAKE FLAT PLATE 4 2 22290 0010 SWIVEL CASTER FLAT PLATE 5 32 220373 3 8 16 1 HEX SCREW SST 6 32 2...

Page 10: ...13 HEX SCREW SST 6 32 21416 0001 3 8 FLAT WASHER SS 7 32 21422 0001 3 8 SPLIT LOCK WASHER ZP 8 1 22450 0228 RESTRAINT CABLE ASSEMBLY 9 1 59560 TOP COVER 10 2 59677 SCR MS SL TR HD 10 32 2 1 2 11 2 7A2...

Page 11: ...83 SPLIT LOCK WASHER ZP 10 16 21172 0004 3 83 16 NYLON INSULATED LOCKNUT ZC 11 8 2001048 1 23 13 x 1 3 8 18 8 HEX CAPSCREW 12 8 A27750 1 23 18 8 FLAT WASHER 13 8 21422 0016 1 23 18 8 LOCK WASHER 14 2...

Page 12: ...d tempera tures 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 co...

Page 13: ...rs supplied in the Installation Kit The locking casters should be installed at the FRONT of the oven The non locking casters should be installed at the REAR of the oven 4 Install the lower oven cavity...

Page 14: ...el using the screws included in the base pad kit as shown in Figure 2 10 Figure 2 9 Stacking Figure 2 10 Top panel installation C Restraint Cable Installation Because the oven is equipped with casters...

Page 15: ...2 3 feet 0 6 1 0m with your fingers The drive and idler shafts must rotate smoothly and the belt must move freely without rubbing on the inside of the oven 4 Check the tension of the conveyor belt as...

Page 16: ...the two screws securing the photo eye assembly to the control box Remove the four nuts securingthephotoeyetothehousing Rotatethephotoeye180 degrees and resecure the photo eye with the four nuts On th...

Page 17: ...on the wiring diagram CAUTION 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 13 Figure 2 17 Utility...

Page 18: ...all start ups conversions and service work to be per formed by a Middleby Authorized Service Agent D PS640 Propane Conversion Two items have to be changed to change the oven to LP 1 Replace main orifi...

Page 19: ...ng clockwise to increase or counter clockwise to decrease pressure until the desired minimum outlet pressure is obtained 6 Check if main burner lights easily and reliable at minimum pressure 7 Reconne...

Page 20: ...elow 200 F B Conveyor Time Setting Adjusts and displays the conveyor bake time Dual belt ovens have two displays single units have one C Temperature Control Display Displays the set point of the oven...

Page 21: ...e temperatures respec tively When the proper temperature is entered push the Enter Reset button The controller will now show the display shown in Figure 3 3 2 Push the ON OFF button to start the oven...

Page 22: ...ake certain there are no products left on the conveyor in the oven 2 Press the ON OFF button to turn the oven off 3 Open the window to allow the oven to cool faster 4 After the oven has cooled and the...

Page 23: ...for blockage Clean window Sensor requires maintenance call for service Conveyor will not move SYMPTOM PROBLEM SOLUTION The internal battery needs to be replaced to retain en ergy mode timings A quali...

Page 24: ...ct 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 If the restraint cable was disconn...

Page 25: ...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 G Disassemble the air fingers as shown in Figure 4 3 AS EACH FINGERISDISAS...

Page 26: ...set screw on both of the conveyor drive sprockets Then remove the sprockets from the shaft 11 Check the conveyor configuration as follows High speed conveyors are equipped with large flange bearings a...

Page 27: ...n tighten the bolts Figure 4 7 Rear panel access Remove eight 8 screws to remove rear panel Blower belt Bearings 2 total Blower motor Loosen four 4 screws to adjust motor position and belt tension Gre...

Page 28: ...1399 Fan Cooling Rear 9 1 50610 Air Switch 10 1 57288 Motor Blower 11 1 50239 Ignition Module 12 1 60679 Assy Valve Gas Modulating 13 1 60671 Board Signal Cond 0 15VDC 14 1 33983 High Limit Control Mo...

Page 29: ...SECTION 5 WIRING DIAGRAM Middleby Marshall Model Number G208 240 Volt 50 60 Hz 1 Phase 25 59324 Rev A6...

Page 30: ...26 NOTES...

Page 31: ...27 NOTES...

Page 32: ...njury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment NOTICE During the warranty period ALL parts replacement and servici...

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