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Related Manuals for Hobart HO300E
Summary of Contents for Hobart HO300E
- Page 1 All manuals and user guides at all-guides.com MODELS HO300G AND HO300E MINI ROTATING RACK OVENS MODEL HO300E (ELECTRIC) ML-132177 HO300G (GAS) ML-132178 701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 34576 Rev. B (Nov. 2003)
- Page 2 KEEP AREA AROUND OVEN CLEAR OF COMBUSTIBLES. DO NOT OBSTRUCT COMBUSTION AND VENTILATION OPENINGS ON THE OVEN. This manual has been prepared to provide information in accordance with ANSI Z83.11-2000 for gas equipment. © HOBART CORPORATION, 2001 – 2 –...
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Page 3: Table Of Contents
All manuals and user guides at all-guides.com TABLE OF CONTENTS GENERAL .............................4 INSTALLATION ............................4 Unpacking ............................4 Location ............................5 Installation Codes and Standards ....................5 Assembly ............................6 Leveling ............................6 Gas Connections ..........................7 Testing the Gas Supply System ....................7 Ventilation ............................8 Plumbing Connections ........................9 Drain Connections ..........................9 Electrical Connections ......................... -
Page 4: General
Both oven rack options can be ordered in an end-load or side-load design. A mechanism in the ceiling rotates the rack during baking. Model HO300G is rated at 95,000 BTU/hr (natural or propane gas). Model HO300E is rated at 18.0 kW (electric). -
Page 5: Location
All manuals and user guides at all-guides.com LOCATION The HO300G and HO300E Mini Rotating Rack Ovens must have the following minimum clearances to combustibles: • Back and sides: 0" • Bottom: 0" • Top: 18" (45.7 cm) Be sure that electrical, water and drain connections are accessible and can be made per local and national codes. -
Page 6: Assembly
All manuals and user guides at all-guides.com ASSEMBLY The oven must be installed on a stand, proofer cabinet, or any noncombustible surface. The oven must be sealed to the stand proofer surface with an NSF-approved sealant, such as Dow Corning 732 or GE RTV108. Secure the oven to the proofer or stand using the provided tie-down brackets, which mount on the rear of the oven. -
Page 7: Gas Connections
All manuals and user guides at all-guides.com GAS CONNECTIONS CAUTION: Gas supply connections and any pipe joint compound must be resistant to the action of propane gases. The HO300G is an indirect gas-fired oven, consisting of a heat exchanger with eight independent, U-shaped tubes, each with a separate in-shot burner rated at 11,875 BTU/hr for a total input of 95,000 BTU/hr. -
Page 8: Ventilation
All manuals and user guides at all-guides.com VENTILATION Ventilation requirements will vary with each installation and must comply with applicable portions of the National Fire Protection Association Standard #96 and with local codes. Exhaust Fan Interlock A connection point (maximum 5-amps) is provided for Indirect Vent (Exhaust Hood) or optional Direct Vent (Draft Hood). -
Page 9: Plumbing Connections
All manuals and user guides at all-guides.com PLUMBING CONNECTIONS WARNING: PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY, SAFETY AND PLUMBING CODES. Oven water supply should have a hardness of 4 to 6 grains per gallon, pH of 6.5 to 8.0 and chlorides less than 30 PPM. -
Page 10: Electrical Connections
Do not connect the HO300G gas model to the electrical supply until after gas connections have been made. The HO300E is an electrically heated oven consisting of six W-shaped elements, each rated at 3.0 kW for a total input of 18.0 kW. The electrical input is shown in the table below:... - Page 11 All manuals and user guides at all-guides.com Control Circuit Connection (All Models) 1. Remove the side service panel on the right side of the oven. 2. Route the single-phase supply wires through the knockout provided in the rear of the oven to the control circuit terminal block.
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Page 12: Preoperational Check
PREOPERATIONAL CHECK WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. Initial startup of the oven must be performed by an authorized Hobart Bakery Systems service representative. Electric Ovens 1. Turn on the water and check for leaks. Shut the water off and repair any leaks before proceeding. - Page 13 The oven has been set at the factory to bake assorted products, such as breads, rolls, cookies and muffins. If the bake is uneven, or if there is a specialty operation, the shutters may need to be adjusted to achieve the desired results. Contact your authorized Hobart Bakery Systems service office for assistance.
- Page 14 The oven has been set at the factory to bake assorted products, such as breads, rolls, cookies and muffins. If the bake is uneven, or if there is a specialty operation, the shutters may need to be adjusted to achieve the desired results. Contact your authorized Hobart Bakery Systems service office for assistance.
- Page 15 All manuals and user guides at all-guides.com Rack Adjustment Rack adjustments should be made with a typical bake product load on it. Depending on the bake product load, some undertravel or overtravel of the rack position is normal. The components are located on top of the oven (Fig.
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Page 16: Operation
All manuals and user guides at all-guides.com OPERATION WARNING: THE RACK OVEN AND ITS PARTS ARE HOT. USE CARE WHEN OPERATING, SERVICING OR CLEANING THE OVEN. ADVANCED CONTROLS – 16 –... - Page 17 All manuals and user guides at all-guides.com 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.
- Page 18 All manuals and user guides at all-guides.com 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 the The PROGRAM window displays the number of the...
- Page 19 All manuals and user guides at all-guides.com Oven Preheat For best results, the oven must be preheated to bake temperature before baking begins. 1. Press the POWER ON OFF button to turn the oven ON. 2. Press the UP or DOWN arrows in the TEMP section to enter the desired baking temperature. 3.
- Page 20 The oven monitors the heating system by comparing the current oven temperature to the set temperature. If a problem arises in the heating system or there is a heating system failure, both temperature displays will flash. If the problem continues, contact your authorized Hobart Bakery Systems service agency.
- Page 21 All manuals and user guides at all-guides.com 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.
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Page 22: Shutdown
All manuals and user guides at all-guides.com SHUTDOWN NOTE: Before restarting a gas oven, power switch and gas burner valve must be off for a minimum of 5 minutes. 1. Remove all remaining product. NOTE: Vent can be used to evacuate steam from oven. 2. -
Page 23: Accessories - Hpc800 Proofing Cabinet
All manuals and user guides at all-guides.com ACCESSORIES - HPC800 PROOFING CABINET The HO300 Mini Rotating Rack Oven can be ordered with the optional HPC800 Proofing Cabinet. The proofer is mounted on four casters (two front-swivel and two rear-fixed). The HPC800 Proofer has a 16-pan capacity that accommodates 18" x 26" (45.7 cm x 66 cm) baking trays with 3"... -
Page 24: Dimensions And Service Connection Diagram
All manuals and user guides at all-guides.com DIMENSIONS AND SERVICE CONNECTION DIAGRAM s t l NOTE: The proofer must be wired separately from the oven. – 24 –... -
Page 25: Controls
All manuals and user guides at all-guides.com CONTROLS Proofing 1. Turn the power switch to the ON position. 2. Turn the temperature knob to the desired setting. 3. Turn the humidity knob to the desired setting. 4. Allow 15 to 20 minutes for the proofer to reach set temperature and humidity. -
Page 26: Maintenance
A preventive maintenance program is your best option for continued safe and reliable oven operation. We believe that Hobart Bakery System Service is your best choice for performing preventive maintenance. SERVICE AND PARTS INFORMATION Contact your authorized Hobart Bakery Systems service agency. -
Page 27: Troubleshooting
Standard 29 CFR 1910.263(l)(9)(ii). A convenient PM Checklist is provided at the end of this section. NOTE: This PM procedure does not discuss repair or replacement of components. Upon completion of the PM procedure, you will need to contact a Hobart Bakery System service agency for any needed repairs. - Page 28 All manuals and user guides at all-guides.com PREVENTIVE MAINTENANCE PROCEDURE Inspect Oven Lamps 1. Lamps should be on when oven is powered. 2. If not, replace lamps. Unscrew lamp cover (Fig. 8) to disengage from lamp sockets and remove from socket. 3.
- Page 29 (Fig. 12). Lift cover from top of oven. Observe condition of the rack rotation belt. If belt is worn or damaged, contact your local Hobart Bakery Systems service office. Reverse procedure to install. 2. Check rack assembly for proper operation.
- Page 30 Push VENT button (Fig. 14) on control panel to open vent and push again to close vent. Visually check that vent opens (Fig. 15) and closes (Fig. 16) when button is pushed. If vent does not operate, contact your local Hobart Bakery Systems service office. Fig. 14 Fig.
- Page 31 Observe LED on ignition module (Fig. 17). The module should go into lockout. (see following chart.) " " " " Fig. 17 If the results have been obtained, proceed to next preventive maintenance procedure. If the results have not been obtained, contact your local Hobart Bakery Systems service office. – 31 –...
- Page 32 The burners should not come on at this time. If the burners do not come on, proceed to next preventive maintenance procedure. If the burners do come on, contact your local Hobart Bakery Systems service office. Reverse the procedure to install.
- Page 33 Allow to cycle three times to stabilize temperature. Set control to call for steam. Observe operation. If steam is not observed, contact your local Hobart Bakery Systems service office. After completion of the Owner PM Procedures, you will need to contact a qualified service office.
- Page 34 All manuals and user guides at all-guides.com t f i l e i l y t i y l l y f i y f i √ = √ = √ = √ = √ f i t – 34 –...
- Page 35 All manuals and user guides at all-guides.com NOTES – 35 –...
- Page 36 All manuals and user guides at all-guides.com NOTES FORM 34576 Rev. B (Nov. 2003) PRINTED IN U.S.A. – 36 –...
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