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Hobart HBA2G - page 1
701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com O P E R A T I O N HBA RA CK O VEN WITH AD V ANCED ELECTR ONIC O VEN CONTR OL MODELS HBA1G GAS HBA2G GAS HBA1E ELECTRIC HBA2E ELECTRIC FOR OVENS MANUFACTURED AFTER MARCH 2005 FORM 36801 (May 2005) ...
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Hobart HBA2G - page 2
– 2 – © HOBART, 2005 IMPORT ANT FOR Y OUR 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. IMPOR T ANT IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNITS AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SU ...
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Hobart HBA2G - page 3
– 3 – MODEL HBA RACK OVEN ...
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– 4 – TABLE OF CONTENTS GENERAL ............................................................................................................................................ 5 INSTALLATION .................................................................................................................................... 5 OPERATION ............. ...
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Hobart HBA2G - page 5
– 5 – OPERA TION AND CARE OF MODEL HB A RA CK O VEN SA VE 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 prop ...
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Hobart HBA2G - page 6
– 6 – OPERA TION HBA ADVANCED CONTROLS ...
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Hobart HBA2G - page 7
– 7 – 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 wi ...
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Hobart HBA2G - page 8
– 8 – 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 ...
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Hobart HBA2G - page 9
– 9 – 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. Pr ...
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Hobart HBA2G - page 10
– 10 – 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 eq ...
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Hobart HBA2G - page 11
– 11 – • 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 ...
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Hobart HBA2G - page 12
– 12 – 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 St ...
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Hobart HBA2G - page 13
– 13 – 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 arro ...
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Hobart HBA2G - page 14
– 14 – 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 ...
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Hobart HBA2G - page 15
– 15 – 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. Ent ...
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Hobart HBA2G - page 16
– 16 – 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 t ...
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Hobart HBA2G - page 17
– 17 – 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 Syst ...
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Hobart HBA2G - page 18
– 18 – 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 th ...
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Hobart HBA2G - page 19
– 19 – Setup Guide (cont) Setup Number Setup Item Display P1 4 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 ...
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Hobart HBA2G - page 20
– 20 – 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 I ...
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Hobart HBA2G - page 21
– 21 – MAINTENANCE WARNING: THE RACK OVEN AND ITS PARTS ARE HOT. USE CARE WHEN OPERATING, SERVICING OR CLEANING THE 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. WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND ...
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Hobart HBA2G - page 22
– 22 – TR OUBLESHOO TING BURNERS WILL NOT LIGHT ON GAS OVEN 1. Check that door is shut. 2. Press the OFF button to turn the oven off and wait 5 minutes. 3. Make sure the gas shutoff valve is in the ON position. 4. Press the ON button to turn the oven back on. If the above suggestions do not remedy the problem, contact a Hobart Bakery Systems se ...
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Hobart HBA2G - page 23
– 23 – Fig. 1 Inspect Oven Lamps 1. Lamps should be on when oven is powered. 2. If not, replace lamps (Fig. 1). A. Remove lens cover by turning out of lamp housing. B. Remove oven lamp by turning lamp out of lamp socket. 3. Reverse the procedure to install new lamps. OWNER PREVENTIVE MAINTENANCE PROCEDURE INTRODUCTION This customer preventive m ...
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Hobart HBA2G - page 24
– 24 – Clean and Vacuum Components and Control/Burner Compartment Area (Gas Only) 1. Clean the control/burner compartment (Fig. 2) area of dust and/or lint accumulation. 2. Vacuum the control/burner compartment floor of dust and/or lint accumulation. 3. Gain access to the top of oven and clean dust that may have accumulated on top of circulatio ...
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Hobart HBA2G - page 25
– 25 – Inspect Door Components 1. Check loading door latch. A. Check door gasket for good condition. If door gasket needs replacement, contact your local Hobart office for service. B. Check loading door latch. Latch must fully extend (Fig. 5) when door is closed and contacting door gasket. Leave about 1/8" gap for heat expansion. C. Adjust ...
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Hobart HBA2G - page 26
– 26 – Inspect Air Louvers 1. Check air louvers (shutters) (Fig. 9) inside oven and tighten any loose screws. 2. Check oven interior, tighten or replace loose or missing panel screws. Also check floor anchors. Inspect Cavity Vent 1. Check cavity vent for proper operation. A. Push VENT (Fig. 10) button on control panel to open vent and then push ...
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Hobart HBA2G - page 27
– 27 – Verify Ignition Module Safety Lockout Functions (Gas Only) 1. Verify ignition module safety lockout functions. A. Turn off main gas supply to the oven. B. Open control panel door to gain access to burner compartment area. C. Turn the oven on. Fig. 13 D. Set the oven to call for heat and make sure convection fan is running. E. Observe LED ...
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Hobart HBA2G - page 28
– 28 – 3. Verify draft inducer pressure switch (Fig. 15) operation. A. Set oven control to call for heat and make sure convection fan is running. B. Disconnect tubing from draft inducer pressure switch (Fig. 15). Burner flame should go out. C. Reconnect tubing. Burner should establish a flame. If not, contact your local Hobart Bakery Systems se ...
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Hobart HBA2G - page 29
– 29 – D E D E E N S A Y P O C S R E B M U N L A I R E S / L E D O M R E N W O D E D N E M M O C E R T S I L K C E H C E C N A N E T N I A M E V I T N E V E R P S A G - S N E V O K C A R Y R E K A B . N A E L C R O N O I T A R E P O R E P O R P R O F K C E H C Y R A S S E C E N S A E C I V R E S R O F L L A C s p m a l n e v o t c e p s n I s a ...
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Hobart HBA2G - page 30
– 30 – NO TES ...
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Hobart HBA2G - page 31
– 31 – NO TES ...
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Hobart HBA2G - page 32
NO TES – 32 – FORM 36801 (May 2005) PRINTED IN U.S.A. ...
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