Page 2 - I M P R O P E R I N S T A L L A T I O N , A D J U S T M E N T ,
– 2 – © HOBART, 2005 IMPORTANT FOR YOUR SAFETY POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THEEVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINEDFROM THE LOCAL GAS SUPPLIER. IMPORTANT IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWNUNITS AT MAIN SHUTOFF VALVE AND C...
Page 3 - MODEL HBA RACK OVEN
Page 4 - TABLE OF CONTENTS
– 4 – TABLE OF CONTENTS GENERAL ............................................................................................................................................ 5 INSTALLATION ...................................................................................................................
Page 5 - SAVE THESE INSTRUCTIONS; GENERAL
– 5 – 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 controlfor baking and/or steaming applications. A mechanism in the oven ceiling rotates the rack duringbaking. Model HBA1G is r...
Page 6 - OPERATION; HBA ADVANCED CONTROLS
Page 7 - Control Guide - Advanced
– 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 onwithin 2 minutes, the oven will come up in the last modeand oven setting. AUTO ON/OFF Press to...
Page 8 - Auto On/Off Timer and Clock
– 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 thebeeper after the BAKETIMER has timed out. PROGRAM Press to select bake The PROGRAM window displays the number of the program. current program. S...
Page 10 - Press STOP or open the loading door to silence the beeper.; Cooling Oven
– 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 afterrack is loaded. 2. Roll the rack into the oven so the end brackets chann...
Page 11 - Display the letters ‘SHdn’ in the BAKE TIMER display.
– 11 – • To adjust steam settings, press the corresponding arrows to enter the new values. The steamtimer 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...
Page 12 - FOOD SERVICE STEAM MODE; To enable the Food Service Steam mode:; KOSHER OPERATION MODE (OVENS EQUIPPED WITH KOSHER PACKAGE); Check that the oven door is closed.
– 12 – FOOD SERVICE STEAM MODE This mode can be used to provide steam on a periodic basis throughout operation. When this modeis enabled, the STEAM TIMER controls how many seconds of steam are provided to the oven, whilea value entered in the Parameter 14 (P14) setup controls how frequently the stea...
Page 13 - Press the TEMP UP or DOWN arrows to enter the desired temperature.
– 13 – PROGRAMMING THE OVEN Single Step Programming The program menu stores up to 99 programs that can be recalled by number when needed. A programis a set of baking instructions (temperature, bake, steam and airflow delay settings) that the operatordefines for any baking operation. 1. With the oven...
Page 14 - Multi-Step Programming; The Step 1 light is lit.
– 14 – Multi-Step Programming Additional programs or steps can be entered within the original program number. Up to four individualsteps 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.Th...
Page 15 - Changing the Programs; Press the UP arrow next to AIRFLOW DELAY to enter the desired time.
– 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 beepsounds, the oven is in program mode. 2. Press the PROGRAM UP or DOWN arrows until the progra...
Page 16 - Using the Programs; Confirm that the oven is at the set baking temperature.; Program Hints
– 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 ...
Page 17 - displayed in the BAKE TIMER window.
– 17 – CUSTOMIZED OPERATION The HBA oven standard and advanced controls have the capability of being customized to fit your ownpersonal needs using the setup mode. Before entering the setup mode, read all the instructions to make sure you are completely clear on whatto do. If you need assistance, pl...
Page 18 - Setup Guide; Setup
– 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 isfirst turned on (Program 0). The pr...
Page 19 - SHUTDOWN; Press the POWER ON OFF button to turn the oven on.
– 19 – Setup Guide (cont) Setup Number Setup Item Display P14 Steam Timer Mode The STEAM TIMER can be set up to display in seconds oroperate in food service mode. Select 0 for seconds or300 to 990 for food service mode. P15 Interior Light Brightness This value is the brightness of the interior light...
Page 20 - CLEANING; Allow the oven to cool.
– 20 – CLEANING WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOWLOCKOUT / TAGOUT PROCEDURES. THERE MAY BE MULTIPLE CIRCUITS. BE SURE ALLCIRCUITS ARE DISCONNECTED. WARNING: THE RACK OVEN AND ITS PARTS ARE HOT. USE CARE WHEN OPERATING,SERVICING OR CLEANING THE RACK OVEN. WARNING: HOT...
Page 21 - MAINTENANCE; Clean the oven interior and remove loose debris (See Cleaning).
– 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 THELOADING DOOR IS OPENED. TO AVOID BURNS, OPEN THE DOOR SLOWLY AND KEEP CLEAROF THE OPENING. WARNING: DISCONNE...
Page 22 - TROUBLESHOOTING; BURNERS WILL NOT LIGHT ON GAS OVEN; Press the OFF button to turn the oven off and wait 5 minutes.; ALARMS AND DISPLAY MESSAGES
– 22 – TROUBLESHOOTING 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...
Page 23 - Inspect Oven Lamps; OWNER PREVENTIVE MAINTENANCE PROCEDURE; INTRODUCTION
– 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 PRO...
Page 24 - Rack Lift and Rotation Assemblies; Check rack lift assembly for proper operation.
– 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 ...
Page 25 - Inspect Door Components; Hobart office for service.
– 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 abo...
Page 26 - Check cavity vent for proper operation.; Visually Inspect Electrical Connections; Bakery Systems service.
– 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) butt...
Page 27 - Verify Ignition Module Safety Lockout Functions (Gas Only)
– 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 ...
Page 28 - Bakery Systems service office.; Verify Operation of Steam; Check steam system for proper operation.
– 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 no...
Page 30 - NOTES
