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Hobart HGC20, HGC20, ML-114573, ML-114575 manual

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Table of contents for the manual

  • Page 1

    701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 33580 Rev. E (Mar. 2005) HGC20 & HGC20D GAS CONVECTION OVENS MODELS HGC20 ML-114573 HGC20D ML-114575[...]

  • Page 2

    – 2 – IMPOR T ANT FOR Y OUR SAFETY THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL GAS EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL. POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE [...]

  • Page 3

    – 3 – Installation, Operation, and Care of HGC20 AND HGC20D GAS CONVECTION OVENS SA VE THESE INSTR UCTIONS FOR FUTURE USE GENERAL The HGC20 Gas Convection Oven is a single cavity oven and features a solid state thermostat, 1-hour dial timer, and five racks as standard equipment. Additional oven racks are optional. Each oven is equipped with a 2[...]

  • Page 4

    – 4 – INSTALLATION CODES AND STANDARDS Hobart ovens must be installed in accordance with: In the United States of America: 1. State and local codes. 2. National Fuel Gas Code, ANSI-Z223.1 (latest edition). Copies may be obtained from The American Gas Association, Inc., 1515 Wilson Blvd., Arlington, VA 22209. 3. National Electrical Code, ANSI/NF[...]

  • Page 5

    – 5 – Assembling the Chimney to the Single Oven Remove the chimney from inside the oven cavity and use the screws provided to fasten the chimney to the top rear of the oven (Fig. 2). The flanges on the chimney are to be positioned over the top cover. ASSEMBLING THE OVEN TO THE STAND Position the oven on its back, taking care not to scratch or d[...]

  • Page 6

    – 6 – LEVELING Once the oven is in its permanent position, place a carpenter's level on the oven rack. If the oven is installed on legs, turn the adjustable feet in or out to level oven front-to-back and side-to-side. If the oven is installed on casters, loosen set screws and turn casters in or out to level oven front-to-back and side-to-s[...]

  • Page 7

    – 7 – GAS CONNECTION For all gas supply connections, pipe joint compound must be resistant to the action of propane gases. The oven is provided with a regulator integral to the gas solenoid valve, and requires no regulator external to the device. A gas shutoff valve is supplied with each oven and is located at the bottom of the control panel. N[...]

  • Page 8

    – 8 – OPERA TION WARNING : THE OVEN AND ITS PARTS ARE HOT. USE CARE WHEN OPERATING, CLEANING, OR PERFORMING ANY MAINTENANCE. CONTROLS — MODEL HGC20 (Fig. 5) ON / OFF / COOL DOWN Switch • Turns oven control circuits ON or OFF; or COOL DOWN allows the fan motor to run with the doors ajar to speed oven cooling. THERMOSTAT • Controls oven tem[...]

  • Page 9

    – 9 – LIGHTING THE HGC20 OVEN Open the manual valve. Turn the ON / OFF / COOL DOWN switch ON and turn the thermostat to its maximum setting. Both the ON and HEAT lights should be lit. If the HEAT light is not on, make sure the door is closed. After 5 seconds, the spark ignition system will initiate and the solenoid valve will open, allowing gas[...]

  • Page 10

    – 10 – CONTROLS — MODEL HGC20D Built before October 1999 (Fig. 6) Fig. 6 THERMOSTAT CONTROL Temperature Display (When not timing product). Displays set cook temperature while the light in the Cook Button is lit. It will be overridden to display the actual cavity temperature for 8 seconds when the Thermometer Button is pushed. 1. The light in [...]

  • Page 11

    – 11 – Cook Button Light (If On and not timing product). Indicates the cook mode is selected. This means: • The displayed temperature settings will be for the cook temperature except for the time that the light in the Thermometer Button is lit. • Rotating the Thermostat Knob will change the cook set temperature. • Cook time can be adjuste[...]

  • Page 12

    – 12 – Pulse Button Selects the pulse time setting. A cook time must be set first. The pulse time can then be set equal to or less than the cook time. The pulse time will be the portion of cook time to operate in the pulse mode. Pulse mode will start first. When pulse time elapses, the remainder of the cook time will be in the non- pulse mode. [...]

  • Page 13

    – 13 – BEFORE FIRST USE Before using the oven for the first time, it must be "burned in" to release any odors that might result from heating the new surfaces in the chamber. 1. Using a clean damp cloth, wipe the inside of the oven, including the racks. 2. Close the oven door, push the ON / OFF / COOL DOWN switch ON, turn the thermosta[...]

  • Page 14

    – 14 – CONTROLS — MODEL HGC20D Built after October 1999 Always displays [HR:Min] when setting the Time. Displays [HR:Min] if the countdown Time is more than 1 Hour. Displays [Min: Sec] if the countdown Time is less than 1 Hour. Displays Temperature in °F. C & H MODE Indicates the oven is in the Cook and Hold Mode. OVEN READ Y Indicates t[...]

  • Page 15

    – 15 – MANUALLY SETTING THE TEMPERATURE AND COOK TIME To Set the Temperature • Press the SET button. Press the TEMPERATURE button; StPt displays to indicate Setpoint. • Use the Up and Down Arrow keys to increase or decrease the displayed Temperature value. • Press the SET button again to save the Temperature setpoint in the computer. To S[...]

  • Page 16

    – 16 – Always Set the Temperature Before Setting the Time • Press the SET button. Press the TEMPERATURE button; StPt displays. Use the Up and Down Arrow keys to increase or decrease the Temperature. To save, press the SET button again. At startup, the display will initially show a GROWING BAR . When the oven temperature reaches the Set Point,[...]

  • Page 17

    – 17 – COOK AND HOLD OPERATION — HGC20D OVEN Cook and Hold cooks the product in two stages. During First Stage Cooking, the oven temperature is regulated by the Cook thermostat for the amount of time set on the Cook Timer. After the lapsed time counts down to 00:00, Second Stage Cooking begins. During Second Stage Cooking, the burners are off[...]

  • Page 18

    – 18 – SUGGESTED COOKING GUIDELINES — MODELS HGC20 AND HGC20D BAKED PRODUCTS The convection oven is a bit faster than conventional deck-type ovens; temperature settings are lower and cook times are shorter. Since recipes and foods are subject to many variations and tastes, the guidelines regarding times and temperatures in this manual are SUG[...]

  • Page 19

    – 19 – FOR BEST RESULTS Product to be cooked should be centered on the oven rack, and the racks should be spaced evenly inside the oven. It is best not to rotate the product or open the door during the cooking cycle. Preheat the oven to 50 F° (28 C°) higher than desired cooking temperature. After the oven is loaded, close the door and set the[...]

  • Page 20

    – 20 – MAINTENANCE WARNING : THE OVEN AND ITS PARTS ARE HOT. USE CARE WHEN OPERATING, CLEANING, OR PERFORMING ANY MAINTENANCE. WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. LUBRICATION The fan motor comes with sealed bearings and requires no lubrication. The door hinges and mechanism require occ[...]