PS770 Series Gas Domestic ENGLISH P/N 59026 July 1, 2012 Rev. D PS770 Series Gas Ovens Model: • PS770G Gas Combinations: • • • Single Oven Double Oven (Two-Stack) Triple Oven (Three-Stack) OWNER'S OPERATING AND INSTALLATION MANUAL for domestic and standard export ovens ©2012 Middleby Marshall Inc. is a registered trademark of Middleby Marshall, Inc. All rights reserved.
Model No. Modéle No. Serial No. Serié No. Installation Date Date d'installation MIDDLEBY MARSHALL PAPA JOHN’S No Quibble Limited Warranty MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY (Non U.S.A.) The Seller warrants equipment manufactured by it to be free from defects in material and workmanship for which it is responsible. The Seller’s obligation under this warranty shall be limited to replacing or repairing, at Seller’s option, without charge, F.O.B.
Table of Contents Page Page SECTION 1 IV. ASSEMBLY......................................................................10 DESCRIPTION......................................................................6 A. Base Pad, Legs, Casters, and Stacking..................10 I. OVEN USES......................................................................6 B. Restraint Cable Installation......................................10 II. OVEN COMPONENTS...................................................
ITEM QTY P/N DESCRIPTION 1 1 55028 STOP,BACK SIDE CONV EXT 2 1 55027 STOP,SIDE END CONV EXT 3 1 59026 OWNER'S OPERATING & INSTALLATION MANUAL 4 1 42612 KIT,SUPPLEMENT SVC AGENCY 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 Bracket, Reflector 10 1 59226 WLDMT, Bracket Reflector 11 2 48522 Spacer, 1.5" Dia X 1.
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.
Mount the new reflector bracket to the provided holes on the front right-hand side of the oven. The reflector should be positioned just above the conveyor belt. Using an assistant, hold both back cover switches in the closed position. This will allow power to the photo-eye, and it will provide a red beam for aiming. Loosen one of the screws holding the photo detector gimbal tight, allowing it to be reaimed at the reflector.
Connection Refer to the wiring diagram inside the machinery compartment of the oven 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, conversions and service work to be performed by a Middleby Marshall Authorized Service Agent.
D. PS770 Propane conversion Four items have to be changed, to change the oven to LP: 1. Adjust internal burner air shutters. 2. Replace main Orifices 3. Replace (and adjust) the spring in the main valve (see LP kit) 4. Adjust modulating valve bypass settings. Disconnect the manifold unions closest to the main burner, and remove the manifold assemblies (four screws each).
SECTION 3 - OPERATION C. Temperature Control/Display D. Message Bar E. Energy Level Indicators E. Energy Level Indicators B. Conveyor Time Setting A. Main On/Off Button I. LOCATION AND DESCRIPTION OF CONTROLS A. Main On/Off Button Turns all oven functions on or off. If the oven is below the set point, it will rise to the set point and turn the conveyor on. If it is turned off and the oven is above 200° F, the blowers will remain on until the oven drops below 200° F. B.
II. NORMAL OPERATION - STEP-BY-STEPC. 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. Setting 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. Setting this value to zero disables this energy mode. 3.
III. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION Oven will not turn On. No electrical power • Check that the circuit breaker/fused disconnect is on. Make sure the emergenct stop button is on. Oven will not heat. No gas pressure • Make sure main gas is on. Burner did not light • Turn oven off, and restart. If it still does not light, call for service. Oven is operating, but little or no air is coming from the fingers. Air fingers may be assembled incorrectly after cleaning.
E. Blower Belts 1. To gain access to each blower belt compartment remove the four screws shown in Figure 4-8. Then, lift the rear shroud off its hangers. If access to the blower motors is required, remove the three mounting screws (two on the front of each shroud and one on the rear). Then, lift the end shroud straight up and off its hangers. 2. Check each blower belt for cracking or excessive wear. 3.
ITEM QTY. 1 P/N DESCRIPTION 1 1 61561 DISPLAY, GT32 COLOR 2 1 58678 MOTOR, CONVEYOR DRIVE 3 1 58679 CONVEYOR CONTROL BOARD 4 2 59169 INVERTER, PROGRAMMED 5 1 M9608 POWER SUPPLY 6 1 59047 KIT, THERMOCOUPLE (5 THERMOCOUPLES) 7 2 M9616 FAN, COOLING MOTOR, BLOWER 8 2 57288 9A 1 60837 AIR SWITCH BURNER/BLOWER MOTOR 9B 2 60598 SWITCH, AIR .
Middleby-Marshall Model Number G208-240 volt 50/60 Hz, 1 Phase 54745 Rev.
