background image

16

II. NORMAL OPERATION - STEP-BY-STEP-

A. 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 right and left 

hand oven settings. Set temperatures as desired. 

4.  Press the ON button to activate the oven. The con-

veyor will not run, until the oven temperature has 

reached the set points. 

B. Daily Shutdown Procedure

1.  Make certain there are no products left on the con

-

veyor in the oven.

2.  Press the ON square 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.  Conveyor speed - Pressing on either the minutes 

or seconds allows a new value to be input for the 

conveyor speed. Split belt ovens have two inputs 

(front and rear belts).

3.  Oven temperature - Pressing on the set temperature 

shifts the user to the oven temperature set point/

indicator screen.

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.  Right actual temperature - Indicates current average 

temperature of the right side of the oven.

2.  Left actual temperature - Indicates current average 

temperature of the left side of the oven.

NOTE:

  Right  to  Left  temperature  settings  should  not 

exceed a differential of 20 °F.

3.  Right Set point temperature - Pressing on this value 

allows the user to adjust the set point for the right 

side of the oven.

4.  Left Set point temperature - Pressing on this value 

allows the user to adjust the set point for the left side 

of the oven.

5.  Exit - Returns to the main screen.

C. Energy Mode Screen

1.  Mode Two - Pressing this button allows the user to 

set the amount of time that the oven allows before 

shifting from energy mode 1 to energy mode 2. Set

-

ting this value to zero disables this energy mode.

2.   Mode Three - Pressing this button allows the user to 

set the amount of time that the oven allows before 

shifting from energy mode 2 to energy mode 3. Set-

ting this value to zero disables this energy mode.

3.   Mode Four - Pressing this button allows the user to 

set the amount of time that the oven allows before 

shifting from energy mode 3 to oven off. Setting this 

value to zero disables this energy mode.

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 1500 RPM, while the oven maintains temperature and 

belt speed.

Energy Mode Two - The oven lowers its set point by 100° 

F, and stops the belt. Anytime that the oven is more than 

10 degrees over its set point, the burners will completely 

shut off, allowing the oven to cool and the burners are on 

minimum flow. The main blowers will continue to run at 

1500 RPM in this mode. Placing any article on the input 

belt will cause normal operation of the oven to resume, and 

bring the set point back to its original level. The belt will 

resume operation once both sides of the oven are within 

 

5° F of the set point.
Energy Mode Three - The oven will turn off completely and 

shut off the circulation blowers once the oven temperature 

has dropped below 200° F. Placing any article on the input 

belt will cause normal operation of the oven to resume, and 

bring the set point back to its original level. The belt will 

resume operation once both sides of the over are within 

 

5° F of the set point.
Energy Mode Four - This is a complete oven shut down. 

Placing anything on the belt will NOT return the oven to 

Operation. The ON button on the main screen has to be 

pressed to restart the oven.

Summary of Contents for PS770 Series

Page 1: ...rademark of Middleby Marshall Inc All rights reserved Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin IL 60120 847 741 3300 FAX 847 741 4406 PS770 Series Gas Ovens P N 59026 July 1 2012 Re...

Page 2: ...2...

Page 3: ...3...

Page 4: ...TIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE The foregoing shall be Seller s sole and exclusive obligation and Buyer s sole and exclusive remedy for any action whether in breach of c...

Page 5: ...ments 9 B Recommendations 9 C Other Ventilation Concerns 9 Page IV ASSEMBLY 10 A Base Pad Legs Casters and Stacking 10 B Restraint Cable Installation 10 C Conveyor Installation 10 D Standoff Installat...

Page 6: ...6...

Page 7: ...7...

Page 8: ...8...

Page 9: ...TION MANUAL 4 1 42612 KIT SUPPLEMENT SVCAGENCY LIST 5 1 33120 0056 PIPE BLK 1 1 4 X 54 6 1 22450 0130 BAG POLY4MIL 9 X 12 W MINI GRIP 7 1 59155 BUSHING HEYCO SB 1500 18 8 1 59099 Reflector 9 1 59098 B...

Page 10: ...10...

Page 11: ...11 D STANDOFF INSTALLATION 1 Place screw P N 19A15144 through counter bored hole in standoff P N 48522 and screw into weld nut on rear shroud 2 Repeat procedure for both sides...

Page 12: ...ng wires noting which color wires assemble to the associated wires on the photo detector Remove the entire photo detector bracket Replace the assembly to the right hand side of the unit mirroring the...

Page 13: ...ven to determine the correct connections for the electrical supply lines Connect the supply as indicated on the wiring diagram CAUTION The terms of the oven s warranty require all start ups conver sio...

Page 14: ...ulating valve bypass settings Disconnect the manifold unions closest to the main burner and removethemanifoldassemblies fourscrewseach Removethe addition four screws holding the burner cores and slide...

Page 15: ...d displays the conveyor bake time Dual belt ovens have two displays single units have one A Main On Off Button B Conveyor Time Setting C Temperature Control Display E Energy Level Indicators E Energy...

Page 16: ...Pressing on this value allows the user to adjust the set point for the left side of the oven 5 Exit Returns to the main screen C Energy Mode Screen 1 Mode Two Pressing this button allows the user to s...

Page 17: ...fingers Oven is not up to operating temperature Conveyor may be jammed Allow oven to preheat Turnovenoff andallowtocool Checkconveyorforblockage Conveyor will not move SYMPTOM PROBLEM SOLUTION The int...

Page 18: ...18...

Page 19: ...19...

Page 20: ...20...

Page 21: ...t for cracking or excessive wear 3 Check for amount of belt deflection in the center of the belt 1 2 deflection is acceptable see Figure 4 9 4 If necessary replace belt IV MAINTENANCE EVERY 6 MONTHS A...

Page 22: ...7 2 M9616 FAN COOLING 8 2 57288 MOTOR BLOWER 9A 1 60837 AIR SWITCH BURNER BLOWER MOTOR 9B 2 60598 SWITCH AIR 13 WC 10 1 54727 IGNITION MODULE 11 1 M9887 ASSEMBLY BURNER BLOWER MOTOR 12 2 60539 VALVE M...

Page 23: ...23 Wiring Diagrams electrical schematics Middleby Marshall Model Number G208 240 volt 50 60 Hz 1 Phase 54745 Rev J...

Page 24: ......

Reviews: