OWNER’S MANUAL AHPO/EPO PROOFER OVEN IMPORTANT INFORMATION READ BEFORE USE PLEASE SAVE THESE INSTRUCTIONS Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.231.1130 • 314.231.5074 Fax www.dukemfg.
CONTENTS Manufacturing Introduction Safety Instruction Spec Sheets Main Features Installation Instructions Oven Start-Up Proofer Operating Instructions Oven Operating Instructions Care and Cleaning Troubleshooting Door Adjustments and Gasket Maintenance Air-wash door Information and Cleaning Instructions Bulb Mounting Details Parts List and Illustrations Wiring Diagrams Customer Assistance Manufacturers Introduction 2 3 4 5 6-9 10 10-11 12-13 14 15-16 17-22 23 24 25-27 28 29 Supplier Name: Address: The
IMPORTANT SAFETY INSTRUCTIONS Throughout this manual, you will find the following safety words and symbols that signify important safety issues with regards to operating or maintaining the equipment. WARNING WARNING GENERAL WARNING. Indicates information important to the proper operation of the equipment. Failure to observe may result in damage to the equipment and/ or severe bodily injury or death. ELECTRICAL WARNING. Indicates information relating to possible shock hazard.
SPEC SHEET U.S. Patent. Other US and Foreign Patents Pending Model AHPO or EPO Shipping Weight: Carton Box 625lbs/284 Kg Shipping Weight: Wooden Crate 760lbs/345 Kg AHPO / EPO Volts Phase 208 208 230 (220-240) 230 (220-240) 230 (220-240) 230 (220-240) 400 (380-415) 400 (380-415) 1 1 1 1 3 3 3N 3N Hz Watts Amps 60 50 60 50 60 50 60 50 6650 6650 6650 6650 6650 6650 6650 6650 32.0 32.0 32.0 32.0 16.7 16.7 16.7 16.7 Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.
MAIN FEATURES LOW VOLTAGE LIGHTING SYSTEM 12V HALOGEN LAMP CONVECTION OVEN CONTROL PANEL PROOFER DRIP PAN Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.231.1130 • 314.231.5074 Fax www.dukemfg.
INSTALLATION Unpacking Unit • • • • • • • Inspect the shipping carton and/or container, carefully noting any exterior damage on the delivery receipt, which was not evident on the outside of the shipping container (concealed damage). Contact the carrier immediately and file a damage claim with them. Save all packing materials when filing a claim. Freight damage claims are the responsibility of the purchaser and are not covered by the warranty.
INSTALLATION 1. Compare the voltage and phase from the oven specification label to the power supply for the oven and call Duke if there is a difference. If the phase is wrong, a qualified service technician can change the wire connections inside the oven to correct the problem. See the illustration on page 4 for phase conversions. If the voltage is wrong, the heat elements must be changed. Call Duke to get new elements. WARNING Risk of Injury 2. This appliance must be secured to building structure.
INSTALLATION Illustration of the Wiring connection for single phase and three phase connections. Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.231.1130 • 314.231.5074 Fax www.dukemfg.
INSTALLATION Instruction for the installation of Wall Brackets to the wall for tipping! 1. Mount the Wall Mounting Bracket with screws provided to the Proofer Oven & extend the Wall Mounting Bracket towards the wall by sliding it thru the slot provided. Do not tighten the screws. 2. Mark on the Wall & Drill in the Wall for fixing anchors for screws. 3. Insert the wall anchors into the already drilled holes on the wall. 4. Butt the Wall Mounting Bracket against the wall. 5.
OVEN START-UP Have a qualified service technician or electrician connect the oven to the power supply. Check the door seal and make sure both doors close completely. If they do not close and seal properly, call Duke for assistance WATER LEVEL INDICATOR FIGURE - 1 • Fill the proofer water pan about half full of clean water. See FIGURE - 1. • Turn the oven and proofer power switches to the ON position.
PROOFER OPERATING INSTRUCTIONS Make sure the humidity pan has fresh clean water in it. Fill it with warm water to get the best performance. A regular check of the water level is recommended during operation. Add water as required. • Turn the proofer power switch on and set the proofer heat to the desired temperature. A good starting temperature is 105°F. • • The light above the heat thermostat will be on until the proofer has heated to the set temperature.
OVEN OPERATING INSTRUCTIONS • • Turn the oven on and set the temperature to 350° F for bread and for Deli rolls. If this is done right after the proofer is loaded with the first load, the oven will be ready to bake when the first load is ready from the proofer. The oven preheat time should be from 20 to 30 minutes. The oven door should be closed, except during loading and unloading. Load the oven quickly to reduce heat loss. • Load the oven with 6 pans of bread and set the bake timer.
OVEN AND PROOFER TEMPERATURE CHECK If the oven or proofer temperature calibration seems to be wrong, it can be checked before a service call is made. It is important to follow the correct procedure to get an accurate reading. If the calibration is off it is recommended that you first call Duke Manufacturing Co. and talk to the service department before you schedule a service call. Calling Duke first can save you time and money by eliminating other problems before a service call is made.
CARE AND CLEANING WARNING Bottom and sides of warmer wells are very hot and cool slowly. CAUTION Electrical shock hazard. Do not wash with water jet or hose. Do not use caustic cleaners, acids, ammonia products, abrasive cleaners, or abrasive cloths. These can damage the stainless steel and plastic surfaces. DAILY CLEANING INSTRUCTIONS 1. Wipe down the interior and exterior of the Proofer Oven with warm water and mild detergent using a soft cloth. 2.
TROUBLESHOOTING Problem Yes No 1. Oven does not heat with oven switch in the ON position and Oven Temperature not set at 0°. a.Are oven indicator lights on? Observe Oven Fan. Go to “b”. Reset Hi-limit Switch b.Does Oven Fan work? Call Duke Service. Check Proofer Operation. Go to “d”. c.Is Oven Door Securely closed? Call Duke Service. Close Door securely. Go to “f”. d.Is Supply Circuit Breaker tripped? Reset Circuit Breaker. Try oven again. Go to “f”. Check Fuses on Control Box. Go to “f”. e.
TROUBLESHOOTING Problem Yes No 3. Oven/Proofer lights not working. a.Is more than one light not working? Replace inoperative light bulbs and recheck. Go to “b”. Check transformer. Go to “b”. b.Is transformer working? Go to “c”. Replace transformer. Go to “c”. c.Do lights work? End of troubleshooting. Call Duke Service. a.Does proofer humidity appear to be working? Adjust Humidity to next higher setting. Wait 15 minutes. Go to “b”. Adjust humidity to maximum setting. Wait 15 minutes.
DOOR ADJUSTMENTS & GASKET MAINTENANCE Reversing Oven Door Swing Direction: 1. Remove cover from hinges to expose the screws that hold the hinge to the front of the oven. See FIG 1. 2. Remove the hinge screws and door from the oven. See FIG 2. 3. Remove the door handle screws and flip the door handle over and replace it on the door. See FIG 3. 4. Remove the six screws on the front of the oven to expose the hinge screw holes for the other swing direction. See FIG 4. 5.
DOOR ADJUSTMENTS & GASKET MAINTENANCE Proofer Drip Channel Reversal: The proofer door has a sloped drip channel on the bottom that directs any water that drips down the door into the water pan below the door. When the door swing is reversed this drip channel must be replaced with a new channel that has the slope in the proper direction. Contact Duke Manufacturing Service for a new drip channel before changing door swing direction.
DOOR ADJUSTMENTS & GASKET MAINTENANCE Proofer Drip Channel Reversal: 1. Follow the directions for removing the door from the previous page. When the door is off you can then replace the drip channel. 2. Remove the screws that hold the drip channel on and remove the drip channel. Use the same screws to fill the empty holes after the drip channel is off. 3. Locate the new drip channel on the other end of the door. Make sure that the slope is directed to the hinge side of the door. See FIGURE - 1. 4.
DOOR ADJUSTMENTS & GASKET MAINTENANCE Door Gasket Leak Adjustments: The doors should be checked for leaks every three months. The adjustment can be made by following the instructions below. If the door gasket is damaged, or compressed permanently, it should be replaced. Call Duke Manufacturing Co. at 800-735-3853 to order a new gasket before making adjustments. 1. With the door closed, remove the hinge covers with a screwdriver and loosen the six screws that hold the hinges to the door. 2.
DOOR ADJUSTMENTS & GASKET MAINTENANCE 3. TO CHECK FOR GAPS To check the adjustment, close the door with a dollar bill between the gasket and front of the oven. You should feel resistance when you try to pull the dollar bill out with the door closed. Do this check in several places and readjust the door if necessary. Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.231.1130 • 314.231.5074 Fax www.dukemfg.
DOOR ADJUSTMENTS & GASKET MAINTENANCE Gasket Replacement: 1. Remove the old gasket by pulling it out of the groove in the door frame. See FIGURE - 1. GROOVE FOR SEALING GASKET FIGURE - 1 2. Clean the groove with a screwdriver or other flat-bladed tool to remove any dirt or gasket pieces. See FIGURE - 2. FIGURE - 2 3. Press the new gasket into the groove. Make sure it is fully seated in the groove and flat against the door frame. See FIGURE - 3. NO GAP FIGURE - 3 4.
AIR-WASH DOOR INFORMATION AND CLEANING INSTRUCTIONS The Air-Wash door has two window panes. The inner window can be easily separated from the outer window for cleaning. This is achieved by unlatching two clips, and the inner window swings on hinges. After cleaning, the inner window frame is easily clipped to the outer window by squeezing the two windows together. Air-Wash Door inside view. 1. To open the windows for cleaning, unlatch the top clip. 3. Air-Wash Door bottom easily swings open for cleaning.
BULB MOUNTING DETAILS TURN COUNTER-CLOCKWISE REMOVE BULB COVER LAMP HOLDER ASY. G4. 12V FLAT LENS 58MM (502794) GASKET – LENS 58MM (502795) 10 WATTS (MAX) LAMP 12V HALOGEN G4 (BI-PIN) (502796) FIGURE - 1 The light flat lens can be removed by turning them counter -clockwise. Make sure the gasket is in place when replacing the covers. If you replace the light bulbs, make sure they are the 10 Watt (Maximum) Halogen Lamp G4 12 Volts. See FIGURE - 1. Duke Manufacturing Co. 2305 N. Broadway • St.
PARTS LIST AND ILLUSTRATIONS Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.231.1130 • 314.231.5074 Fax www.dukemfg.
PARTS LIST AND ILLUSTRATIONS ITEM # PART# DESCRIPTION 01. 02. 02. 03. 04. 05. 05. 06. 07. 08. 08. 08. 08. 08. 08. 09. 10. 10 10 11. 11 12. 13. 13 14. 15. 16. 17. 18. 18. 19. 19. 20. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34.
PARTS LIST AND ILLUSTRATIONS 35. 36. 37. 38. 39. 40. 41. 42. 42. 43. 43. 44. 44. 45. 46. 502792 502795 502794 502796 153142 502815 512068 512971 512972 512948 512949 502936 502935 502812 502816 HALOGEN LAMP COMPLETE 10W.
WIRING DIAGRAM Duke Manufacturing Co. 2305 N. Broadway • St. Louis, MO 63102 800.735.3853 • 3.231.1130 • 314.231.5074 Fax www.dukemfg.
CUSTOMERS ASSISTANCE To aid in reporting this unit in case of loss or theft, please record below the model number and serial number located on the unit. We also suggest you record all the information listed and retain for future reference. MODEL NUMBER SERIAL NUMBER DATE OF PURCHASE DEALER TELEPHONE SERVICER TELEPHONE TO PHONE: Dial 1-800-735-DUKE (3853) SERVICE PARTS ADDITIONAL CUSTOMER IMFORMATION TO WRITE: Duke Manufacturing Co. 2305 N. Broadway St. Louis, MO 63102 TO ACCESS INTERNET: www.
