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PS870 Series
P/N 59157
Gas
August 4, 2006
Domestic
ENGLISH
PS870 Series Gas Ovens
Model:
Combinations:
• PS870G Gas
• Single Oven
• Double Oven (Two-Stack)
• Triple Oven (Three-Stack)
OWNER'S OPERATING AND
INSTALLATION MANUAL
for domestic and standard export ovens
©2006 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
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Model No. Serial No. Installation Date Modéle No. Serié No. Date d'installation MIDDLEBY MARSHALL MIDDLEBY MARSHALL INC. NO QUIBBLE LIMITED WARRANTY OVEN LIMITED WARRANTY (U.S.A. ONLY) (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 MIDDLEBY MARSHALL, HEREINAFTER REFERRED TO AS Seller’s obligation under this warranty shall be limited to replacing “THE SELLER”, WARRANTS EQUIPMENT MANUFACTURED or rep
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Table of Contents Page Page SECTION 1 IV. ASSEMBLY ...................................................................... 9 DESCRIPTION .................................................................... 5 A. Base Pad, Legs, Casters, and Stacking .................. 9 I. OVEN USES .................................................................... 5 B. Restraint Cable Installation ...................................... 9 II. OVEN COMPONENTS .................................................... 5
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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 1.125" H 12 2 19A15144 SCR, MS HH 10-32 X 1-1/4 18-8 8
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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. 10
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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. The beam should hit exactly in the center of the reflector, then tighte
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Connection Refer to the wiring diagram inside the machinery compart- ment 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, conver- sions and service work to be performed by a Middleby Marshall Authorized Service Agent. 12
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D. PS870 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). Remove the addition four screws holding the burner cores and slide out each burner core (leaving the ignition and sense wires
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SECTION 3 - OPERATION C. Temperature Control Display E. Message Bar Increase Decrease A. Main On/Off Button B. Conveyor Time Setting D. TEMP Set Left Right LOCATION AND DESCRIPTION OF CONTROLS A. Main On/Off Button C. Temperature Control/Display Turns all oven functions on or off. If the oven is below the set Displays the set point of both right and left sides of the point, it will rise to the set point and turn the conveyor on. oven. If it is turned off and the oven is above 200° F, the blowers
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NORMAL OPERATION - STEP-BY-STEP- 2. Push the “ON/OFF” button to start the oven. The A. Main Screen controller will display the screen, as shown in 1. When the unit has been “OFF” for more than 1 minute Figure 3-3. the controller will display the screen saver, as shown in Figure 3-1. To start operation, push the “Enter/ Reset” button. The controller will display the “OFF” screen, as shown in Figure 3-2. ON/OFF button Figure 3-3 Main Screen ON Figure 3-1 Screen Saver 3. To change the temperature,
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4. To change the conveyor belt speed, push the “TIME” C. Daily Shutdown Procedure button. The controller will display the screen, shown in 1. Make certain there are no products left on the conveyor Figure 3-5. To change the minute setting, push the “← ← ←” ← ← in the oven. arrow button. Then push either the “↑” arrow or “↓” 2. Press the “ON/OFF” button to turn the oven off. arrow buttons to increase or decrease the time accord- 3. Open the window to allow the oven to cool faster. ingly. To chang
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III. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION Oven will not No electrical power • Check that the circuit breaker/fused disconnect is on. Make turn On. sure the emergenct stop button is on. Oven will not No gas pressure • Make sure main gas is on. heat. Burner did not light • Turn oven off, and restart. If it still does not light, call for service. Oven is operating, but Air fingers may be as- • Turn oven off, and allow to cool. Reassemble fingers little or no air is coming semb
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