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O
P
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R
A
T
I
O
N
HBA RACK OVEN
WITH ADVANCED ELECTRONIC
OVEN CONTROL
MODELS
HBA1G GAS
HBA2G GAS
HBA1E ELECTRIC
HBA2E ELECTRIC
FOR OVENS MANUFACTURED AFTER MARCH 2005
701 S. RIDGE AVENUE
TROY, OHIO 45374-0001
937 332-3000
www.hobartcorp.com
FORM 36801 (May 2005)
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IMPORTANT FOR YOUR SAFETY POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINED FROM THE LOCAL GAS SUPPLIER. IMPORTANT IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNITS AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE. FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. WARNING: IMPROPER INSTALLATIO
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MODEL HBA RACK OVEN – 3 –
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TABLE OF CONTENTS GENERAL ............................................................................................................................................ 5 INSTALLATION .................................................................................................................................... 5 OPERATION ........................................................................................................................................ 6 HBA Advanced Controls ............
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OPERATION AND CARE OF MODEL HBA RACK OVEN SAVE THESE INSTRUCTIONS GENERAL The Hobart HBA Rack Oven accommodates a roll-in rack. It is equipped with an electronic oven control for baking and/or steaming applications. A mechanism in the oven ceiling rotates the rack during baking. Model HBA1G is rated at 180,000 Btu/hr, natural or propane gas. Model HBA2G is rated at 300,000 Btu/hr or 350,000 Btu/hr, natural or propane gas. Model HBA1E is rated at 34.2 kW. Model HBA2E is rated at 51.3 kW. Hobart R
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OPERATION HBA ADVANCED CONTROLS – 6 –
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Control Guide - Advanced Button Action Display POWER Press to turn the oven Control panel displays are lit when the oven is on. Oven ON or OFF. defaults to Program 0. If oven is turned off and back on within 2 minutes, the oven will come up in the last mode and oven setting. AUTO ON/OFF Press to enter current time The AUTO ON/OFF TIMER window displays the current TIMER or time for oven to time, or the time the oven will automatically turn on or automatically turn on or off. off, when correspondi
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Control Guide - Advanced (cont) Button Action Display Press to stop the BAKE The ON light is off when the BAKE TIMER is inactive. TIMER or silence the beeper after the BAKE TIMER has timed out. PROGRAM Press to select bake The PROGRAM window displays the number of the program. current program. STEP Press to select one of The corresponding indicator light will be lit (1 to 4), four baking steps. depending on which step is selected. Press to open or The indicator light above the VENT button is lit
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Oven Preheat For best results, the oven must be preheated to bake temperature before baking begins. 1. The door must be closed for oven to heat. The rack carrier will lift and rotate only during timed bake. NOTE: The rack carrier will be in the unload position from the last bake. 2. Press the POWER ON OFF button to turn the oven on. 3. Press the UP or DOWN arrows next to the SET TEMP window to enter the desired baking temperature. Actual temperature of the oven will appear in the OVEN TEMP windo
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Loading Procedure 1. Type B and C rack carriers are equipped with stops on both ends. For B lifts, ensure stop flap is in the up position to load the rack on the rack carrier. For C lifts, push rack stop to the left after rack is loaded. 2. Roll the rack into the oven so the end brackets channel onto the rack carrier. When using racks equipped with pan stops, load racks so stops will prevent movement of trays toward user when racks are unloaded. 3. Close the loading door. The rack carrier will
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To adjust steam settings, press the corresponding arrows to enter the new values. The steam timer cannot be adjusted during bake operation. You can adjust the time remaining with the arrows. The set time remains unchanged unless you “0” out the remaining time. If the door is opened at any time during the baking cycle, the TEMP, BAKE TIME, STEAM and AIRFLOW DELAY settings will pause. Close the door to resume all functions. The AIRFLOW DELAY option minimizes airflow at the beginning of the
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FOOD SERVICE STEAM MODE This mode can be used to provide steam on a periodic basis throughout operation. When this mode is enabled, the STEAM TIMER controls how many seconds of steam are provided to the oven, while a value entered in the Parameter 14 (P14) setup controls how frequently the steam is operated. To enable the Food Service Steam mode: 1. Enter the parameter set up mode by pressing and holding the START button and POWER ON OFF button. 2. Select Parameter 14. 3. If the BAKE TIMER windo
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PROGRAMMING THE OVEN Single Step Programming The program menu stores up to 99 programs that can be recalled by number when needed. A program is a set of baking instructions (temperature, bake, steam and airflow delay settings) that the operator defines for any baking operation. 1. With the oven in the OFF mode, press and hold the UP arrow in the STEPS section. While pressing and holding the UP arrow, press the POWER ON OFF button for 3 seconds. When the beep sounds, the oven is in program mode.
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Multi-Step Programming Additional programs or steps can be entered within the original program number. Up to four individual steps can be added by the operator, each with different bake settings. For example, Program 1 has temperature, bake, steam and delay time settings set by the operator. This is known as Step 1. After the timer times out in Step 1, the oven automatically starts the programmed bake settings in Step 2. The system continues with each step until all steps have been timed out. 1.
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Changing the Programs 1. With the oven in the OFF mode, press and hold the UP arrow in the STEPS section. While pressing and holding the UP arrow, press the POWER ON button for 3 seconds. When the beep sounds, the oven is in program mode. 2. Press the PROGRAM UP or DOWN arrows until the program number that is desired is displayed. 3. Enter the new Bake, Steam and Delay Airflow settings: Press the UP or DOWN arrows next to BAKE TIMER to enter the desired time. Press the UP or DOWN arrows next
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Using the Programs 1. Press the PROGRAM UP or DOWN arrows to select the desired program number (1-99). The TEMP, BAKE, STEAM and AIRFLOW DELAY settings are displayed. 2. Confirm that the oven is at the set baking temperature. 3. Slowly open the doors. Wait for the rack lifting device to come to a stop. 4. Roll the rack into the oven so the end brackets channel onto the rack lifting carrier. (See Loading Procedure.) 5. Close and latch the door. 6. Press START. A beeper will sound after the BAKE T
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CUSTOMIZED OPERATION The HBA oven standard and advanced controls have the capability of being customized to fit your own personal needs using the setup mode. Before entering the setup mode, read all the instructions to make sure you are completely clear on what to do. If you need assistance, please call your authorized Hobart Bakery Systems service office. Entering Setup Mode With the oven in the OFF mode, press and hold the START button. While pressing and holding the START button, press the PO
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Setup Guide Setup Number Setup Item Display P1 Maximum Temperature This is the maximum temperature at which the oven can be Setpoint set. Range is 50°F to 525°F (10°C to 274°C). P2 Preheat Temperature This is the default temperature setpoint when the oven is first turned on (Program 0). The preheat temperature cannot be set higher than the value in P1. Range is 50°F to 525°F (10°C to 274°C). P3 Minimum Temperature This is the minimum temperature at which the oven can be Setpoint set. Range is 50
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Setup Guide (cont) Setup Number Setup Item Display P14 Steam Timer Mode The STEAM TIMER can be set up to display in seconds or operate in food service mode. Select 0 for seconds or 300 to 990 for food service mode. P15 Interior Light Brightness This value is the brightness of the interior lights. The higher the number, the brighter the lights. Range is 50 to 100. P16 Clock Operation This selects either 12 hours (AM/PM) or 24 hours real time display. Press the Bake Time Up button to switch betwee
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CLEANING WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. THERE MAY BE MULTIPLE CIRCUITS. BE SURE ALL CIRCUITS ARE DISCONNECTED. WARNING: THE RACK OVEN AND ITS PARTS ARE HOT. USE CARE WHEN OPERATING, SERVICING OR CLEANING THE RACK OVEN. WARNING: HOT AIR AND STEAM ARE RELEASED FROM THE OVEN INTERIOR WHEN THE LOADING DOOR IS OPENED. TO AVOID BURNS, OPEN THE DOOR SLOWLY AND KEEP CLEAR OF THE OPENING. Allow the oven to cool. Clean the outside of the
