XD-9010B-GA Rev 03 04/07/2011 XLT Oven & AVI Hood Installation & Operation Manual CAUTION This appliance is for professional use by qualified personnel. This appliance must be installed by qualified persons in accordance with the regulations in force. This appliance must be installed with sufficient ventilation to prevent the occurrence of unacceptable concentrations of substances harmful to health in the room in which it is installed.
WARNING & SAFETY INFORMATION SAFETY DEPENDS ON YOU WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury, or death. Read the installation, operating and maintenance instructions thoroughly before installing, using, or servicing this equipment. Post in a prominent location instructions to be followed in the event you smell gas. This information can be obtained by consulting your local gas supplier.
SAFETY MESSAGES 3 For the best results with the XLT Oven and AVI Hood, carefully read this manual and all of the warning labels attached to the products before installing and operating them, and follow the instructions exactly. Keep this manual handy for quick reference. Definitions and Symbols A safety instruction (message) includes a “Safety Alert Symbol” and a signal word or phrase such as WARNING or CAUTION. Each signal word has the following meaning: HIGH VOLTAGE This symbol indicates high voltage.
Your new oven and hood system is the result of our dedication to help you produce the finest quality baked goods. XLT Ovens has made a substantial and growing investment in capital equipment and facilities, including state of the art CAD/CAM designing and fabricating software and machine tools.
TABLE OF CONTENTS Warning & Safety Information..................................................................................................... 2 Safety Messages ........................................................................................................................... 3 Oven Description .......................................................................................................................... 6 Oven Dimensions ...........................................................
Oven Description This manual covers the following XLT Series Ovens and AVI Hood models: 1832-AE-B 2440-AE-B 3240-AE-B 3255-AE-B 3270-AE-B 3270S-AE-B 3855-AE-B 3870-AE-B 1832B-S 2440B-S 3240B-S 3255B-S 3270B-S 3270SB-S 3855B-S 3870B-S 1832B-W 2440B-W 3240B-W 3255B-W 3270B-W 3270SB-W 3855B-W 3870B-W AVI-1832A-S AVI-2440A-S AVI-3240A-S AVI-3255A-S AVI-3270A-S AVI-1832A-W AVI-2440A-W AVI-3240A-W AVI-3255A-W AVI-3270A-W AVI-3855A-S AVI-3870A-S AVI-3855A-W AVI-3870A-W XLT Ovens are certified to the fol
Oven Description An easily removable front panel allows the full cleaning of the oven interior. All exposed oven surfaces both exterior and interior are stainless steel. The conveyor is a one piece design and is removed from the side which has the control box. No tools are required for disassembly and cleaning of the conveyor or oven interior. The oven itself is mounted on lockable swivel casters for easy moving and maintenance.
N M 17.55 [446] E A * 19.77 [502] G C B D F J K H P Q P N N M NOTE: All dimensions in inches [mm]. L 20.87 [530] 19.
Oven Dimensions SINGLE STACK A B C D E F G H J K L M N P Q WEIGHT 1832 19.41 [493] 32.13 [816] 67.25 [1708] 19.72 [501] 47.23 [1200] N/A* N/A* 39.92 [1014] 14.85 [377] 5.70 [145] 42.73 [1085] 20.66 [525] 31.78 [807] N/A N/A 500 [227] 2440 25.41 [645] 40.13 [1019] 75.25 [1911] 19.72 [501] 53.23 [1352] N/A* N/A* 39.92 [1014] 14.85 [377] 5.70 [145] 42.73 [1085] 20.66 [525] 31.78 [807] N/A N/A 600 [272] 3240 33.41 [849] 40.13 [1019] 75.25 [1911] 19.
Gas & Electrical Connection Dimensions - Australian & World Ovens For Models 3270 & 3870 18.91 [480] 9.30 [236] 24.88 23.24 [632] [590] 18.91 [480] 9.30 [236] 44.87 43.23 [1140] [1098] 24.88 23.24 [632] [590] 18.91 [480] 9.30 [236] 49.82 48.18 [1265] [1224] 29.83 28.19 [758] [716] 9.85 [250] 8.21 [208] NOTE: All dimensions in inches [mm].
Gas & Electrical Connection Dimensions - Australian & World Ovens For Models 1832, 2440, 3240, 3255 & 3855 18.91 [480] 12.35 [314] 24.88 [632] 25.24 [641] 18.91 [480] 12.35 [314] 44.87 45.23 [1140] [1149] 24.88 25.24 [632] [641] 18.91 [480] 12.35 [314] 49.82 50.18 [1265] [1275] 29.83 30.19 [758] [767] 9.85 [250] 10.21 [259] NOTE: All dimensions in inches [mm].
Oven Electrical Requirements Australian Ovens OVEN VOLTS AMPS FREQUENCY Size Single Double Triple 1832 3 6 9 2440 3 6 9 3 6 9 3255 3 6 9 3270 6 12 18 3855 3 6 9 3870 6 12 18 3240 220/230/240 VAC 50 Hz Standard Ovens OVEN VOLTS AMPS FREQUENCY Size Single Double Triple 1832 6 12 18 2440 6 12 18 6 12 18 3255 6 12 18 3270 12 24 36 3855 6 12 18 3870 12 24 36 3240 120 VAC 60 Hz World Ovens OVEN VOLTS AMPS FREQUENCY Size Single
Gas Requirements Australian, Standard. & World Inlet Pressure Oven Burner Max. Capacity NAT Gas LP Gas Size BTU/HR KW/HR MJ/HR W/C mbar kPa W/C mbar kPa 1832 52,000 15.24 63 6-14 15-35 1.5-3.5 11.5-14 27.5-35 2.75-3.5 2440 65,000 19.05 79 6-14 15-35 1.5-3.5 11.5-14 27.5-35 2.75-3.5 3240 90,000 26.37 105 6-14 15-35 1.5-3.5 11.5-14 27.5-35 2.75-3.5 3255 150,000 43.95 169 6-14 15-35 1.5-3.5 11.5-14 27.5-35 2.75-3.5 3270 160,000 46.
World Oven Gas Group Natural Gas Gas Group Inlet pressure (mbar) Number of injectors Main burner opening size Ignition Inlet connection Propane Gas I2H I2E I2E+ I2L I3+ I3B/P (30) 20 20 20/25 25 28/30/37/50 28-30/37/50 I3P I3B (37) (30/37/50) 30/37/50 37 (1) per burner Fixed Electric Direct Spark Igniter BSP 3/4" male thread Gas Matrix by Country Natural Gas (8.
Oven Only Rough-In Specifications The gas supply and the electrical supply are to be provided by the customer prior to installation. The picture shows a typical utility rough-in for a triple stack oven. Preparing the utilities this way allows for an easy third deck addition if a double stack oven is initially installed. 6.00 [152] From back of oven to wall Utilities must be easily accessible when the ovens are in the installed position. Do not install utilities behind the ovens. NOTE 3.00 [76] 6.
Oven Only Rough-In Specifications FOR EACH OVEN: Electrical service for Standard Ovens must be 120VAC, 20 A, 60 Hz single phase circuits with ground. Electrical service for World Ovens must be 220/230/240VAC, 10 A, 50/60 Hz single phase circuits with ground. Electrical service for Australian Ovens must be 220/230/240 VAC, 10 A, 50Hz single phase and installed in accordance with the latest version of AS/NZS 3000 wiring rules. A separate circuit breaker must be provided for each oven deck.
Oven Assembly 17 WARNING & SAFETY INFORMATION XLT ovens can easily be moved and stacked with the proper lifting equipment. The use of lifting equipment is highly recommended. WARNING These ovens are heavy and can tip or fall causing bodily injury. NEVER place any part of your body beneath any oven that is suspended by the lifting jacks. A crush hazard exists if the oven falls or slips. DO NOT place your hands on the lifting jack vertical pole beneath the jack’s winch.
Oven Assembly Base Assembly - Single & Double Stack 1. Flip the oven base upside down on the floor. 2. For single and double-stack configurations, attach the four legs to the bottom of the base with the supplied 3/8" x 1" hex bolts, washers, and lock-washers. Do not fully tighten them at this time. Leave them slightly loose so that the rest of the components can be more easily assembled. 3. Place the four leg angles on top of the legs as shown.
Oven Assembly Prepare the Oven for Lifting 1. Remove the two conveyor opening flaps and thumbscrews from the oven. Set them aside for reinstallation later. 2. Install the lifting plates in place of the conveyor opening flaps using the same thumbscrews. If using an AVI Hood System, conveyor flaps are not needed.
Oven Assembly Lifting Jack Setup Each lifting jack consists of two (2) parts; the pole/winch assembly, and the tripod base. 1. Place the bottom of the pole into the socket of the tripod base. WARNING Make sure that the notch on tube of the winch assembly is aligned with the pin in the tripod base as shown. These alignments are important and keep the jack aligned properly. Check for smooth operation.
Oven Assembly 21 Stacking the Ovens 1. Fully insert the lifting jacks into the lifting pipe. Failure to engage properly can result in damage, injury, or death from a falling oven. WARNING 2. Raise the oven high enough to clear the cart or the skid. Both jacks should be raised in unison, otherwise they may bind and a dangerous situation may develop. Do not put any part of yourself under the oven at any time. The oven is top heavy. Be careful! WARNING 3. Remove the cart or skid. 4.
Oven Assembly Stacking the Ovens 8. Reinstall the conveyor opening flaps in each oven deck. A series of holes in the flaps allow adjustment for different heights of food product. 9. Control box heat shields need to be installed on any multi-deck installation. For xx70 models, they are required on both ends. To install, remove the four (4) control box screws under the conveyor. Place the panel with the notch towards the bake chamber. Line up the slots with the existing holes and replace the screws.
Oven Installation 23 Electric Supply Requirements for Australian, Standard. & World Ovens Australian Ovens CAUTION In Australia, the electrical service must be installed in accordance with the latest version of AS/NZS 3000 wiring rules. Standard Ovens Electrical Grounding Instructions This appliance is equipped with a three-prong (grounding) plug for your proHIGH tection against shock hazard and should be plugged into a properly grounded VOLTAGE three-prong receptacle.
Oven Installation Gas Supply Requirements for Australian, Standard. & World Ovens The gas supply shall have a gas meter and regulator large enough to handle all of the gas appliances, such as the furnace, water heater, and ovens in operation at the same time. Add up all of the Btu/kw/MJ ratings to determine the total load. The installation must conform to local building codes. 1.
Oven Installation 25 Restraint Because all ovens are equipped with casters, all installations must be configured with a restraint to limit the movement of the oven without depending on the gas connector and quickdisconnect device or its associated piping, and the electric power supply cord to limit the oven movement. One (1) restraint kit, which includes two (2) eye bolts and a cable, is required for each oven stack, regardless if used on a single, double, or triple configuration.
Oven Installation Fire Suppression The requirement for fire suppression systems vary by location and the authority having jurisdiction. Contact XLT Ovens for fire suppression kit availability. Crumb trays and chain guards must be removable without disturbing fire suppression piping. Supply Line Supply Inlet Aim nozzles at center of oven Aim nozzles at center of oven Place nozzles into conveyor opening, as far up and to the back of oven as possible.
Ventilation Requirements & Guidelines 27 Ventilation Requirements Most gas burning appliances produce CO (carbon monoxide), a poison. CO and heat must be vented to the outside. A powered ventilation hood is required to remove these. The hood and HVAC installation must meet local building and mechanical codes. In Australia, a ventilation hood should be installed in accordance with AS5601 Gas Installation. Requirements vary throughout the country depending on the location by city.
Ventilation Requirements & Guidelines Non-AVI Hood Interlock The following is a recommended method of providing an interlock system (if required), between the exhaust fan and ovens. The circuit shown will stop the ovens from operating if the exhaust fan fails and also prevent the ovens from starting if the exhaust fan is not first operating.
Oven Initial Start-up Checklist - Remove & Return to XLT Ovens Date of installation: ______________________________ Installed by: XLT installer: ______________________ Other: Company:____________________ Installer: ____________________ Phone #: ____________________ Oven Size: 1832 2440 3240 3255 3270 3855 3870 Heat Source: Natural Gas LP Electric Facility Information Electrical Store Name: ___________________________________ Electrical supply accessible after installation: Physical Add
N/A Yes No Yes No N/A High Bias: ___________ Low Bias: ___________ Low flame after temperature drop: Yes No Was Combination Valve adjusted: Yes No Secondary Shutter Setting: ___________________ Main Shutter Setting: _______________________ Left Burner: High Bias: ___________ Low Bias: ___________ Was Combination Valve adjusted: Low flame after temperature drop: Secondary Shutter Setting: ___________________ Main Shutter Setting: _______________________ Fingers in proper location: Ye
Oven Initial Start-Up Combination Gas Valve Inlet Pressure Tap Manifold Pressure Tap Low Flame Bias Adjustment (5mm) Manifold Pressure Adjustment (High Flame Bias Screw (Brass Nut– 8mm) Secondary Shutter Main Shutter Quiet Fire Direct Ignition Burner Low Flame Bias Adjustment (5mm) Combination Gas Valve Inlet Pressure Tap Manifold Pressure Tap Manifold Pressure Adjustment High Flame Bias Screw (Brass Nut 8mm) Direct Ignition Burner Contact XLT Ovens or your designated representative to make all
Oven Initial Start-Up Manifold Pressure Tap Manifold Pressure Regulator (under cap screw) Combination Gas Valve Inlet Pressure Tap Direct Ignition Burner - Australia Contact XLT Ovens or your designated representative to make all gas pressure adjustments.
Oven Operator Controls Models 1832, 2440, 3240, 3255 & 3855 Single oven shown, Double and Triple Stack similar Right Left Oven Switch Front Conveyor Speed Control Temperature Control Circuit Breakers Fan & Filter Control Panel Standard Belt Back Left Back Conveyor Speed Control Right Front Conveyor Speed Control Front Control Panel Split Belt
Oven Operator Controls Models 3270 & 3870 Single oven shown, Double and Triple Stack similar Left Right Oven Switch Front Circuit Breakers Fan & Filter Right Side Temperature Control Left Side Temperature Control Right Side Control Panel Standard Belt Left Side Control Panel (Standard & Split Belt) Back Left Right Front Back Conveyor Speed Control Front Conveyor Speed Control Right Side Control Panel Split Belt
Oven Operation CAUTION This oven is not capable of being safely placed in operation in the event of a power failure. No attempt should be made to operate this oven during power failure. 1. Turn the switch on. The fan(s) will energize, the temperature and conveyor control will light up, and the conveyor will start to move. 2. Adjust the temperature controller set-point to the desired temperature. To change the oven setpoint temperature, press and hold either the UP or DOWN key.
Oven Cleaning As with any appliance, periodic cleaning and maintenance is required. Many factors affect this schedule such as product mix and hours of usage. An example schedule is included. Your XLT oven is constructed of stainless steel. Most commercial cleaning agents may be used safely on all stainless steel surfaces. Check application restrictions on product label prior to usage. Observe recommended precautionary and safety measures as dictated by the product manufacturer.
Oven Cleaning 1. Remove and clean crumb trays, product stops, and conveyor opening flaps. Product Stop Conveyor Opening Flap Crumb Tray Thumb Screws 2. Hold the front panel in place while removing the four (4) front panel knobs. Then remove and clean the front panel. Opening the sandwich door will provide a grip location for removing the front panel. TIP Front panels can weigh up to 75 lbs. or 34 kg. Use caution when lifting.
Oven Cleaning 3. To remove and clean the lower finger outer panels and lower finger body assemblies, raise the front of the conveyor and insert two (2) front panel knobs, one (1) each side, as shown. Front Panel Knobs 4. Raise the front of the lower finger bodies, one at a time, approximately one inch, [25 cm], and slide the finger outer panels out towards the front. Finger Bodies NOTE Prior to the removal of the finger covers, note the location and configuration to ensure proper reassembly.
Oven Cleaning Finger Covers 5. Raise the front of the upper finger bodies, one at a time, approximately 1” [25 cm], and slide the finger assembly out towards the front. Upper Finger Bodies Lower Finger Bodies 6. Wipe down and clean all interior and exterior surfaces. DO NOT spray liquid cleaning agents in the slots and holes in the following locations: Back of Control Box Underneath Control Box CAUTION Main Fan Motor Cover 7.
Oven Maintenance The most critical item to be maintained is the filter on the Flow Path Pressure Generating fan. The filter is held in place by the stainless steel fan guard/filter mount and can be washed several times. Regular cleaning of the Flow Path Pressure Generating Fan filter is important to provide combustion air and to maintain air circulation within the control box. Depending upon store conditions, this filter should be cleaned weekly or as it gets clogged with dust.
Oven Troubleshooting 41 Oven Problems Before trouble-shooting the oven; 1. 2. 3. 4. 5. 6. Make sure that the oven is connected to the proper voltage. Check to see that the breaker in the service panel is not disengaged. Check to see that all circuit breakers on the oven are not disengaged. Check to see if the gas supply is adequate. The gas hose must be connected to the oven and the manual shutoff valve fully opened. Check to see that the oven is fully assembled.
Oven Troubleshooting Proper Cooking Experimentation is about the only way to determine proper time and temperature settings. While a pizza may look perfectly cooked on the outside, the inside may be undercooked. A thermometer is necessary to determine if food items are being properly cooked. Most health departments have rules and regulations that establish minimum temperatures for internal food temperatures.
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AVI Exhaust Hood Hood Description Duct Collar Main Canopy Oven & Hood Switches VFD Control Box End Shroud Panel (size specific) Front Shroud Panel Product Take-Off Shelves (optional) The AVI Hood System consists of three (3) major parts, the main canopy, the shrouds, and the Variable Frequency Drive (VFD) exhaust fan controller. The main canopy serves to collect heat and products of combustion and transmits the effluents to the exhaust fan. It houses filters, lights, and switches.
Hood Dimensions 13 1/2 +1/2 [343 +13 ] -0 -0 Critical Dimension needed to maintain proper clearances for installed ovens B F C 12 [305] 12 [305] (24 [610]) A 28 7/8 [733] E D Model Numbers AVI 1832 AVI 2440 AVI 3240 AVI 3255 AVI 3270 AVI 3855 AVI 3870 “A” 34-11/32 [872] 40-11/32 [1025] 48-11/32 [1228] 48-11/32 [1228] 48-11/32 [1228] 54-11/32 [1380] 54-11/32 [1380] “B” 18-11/16 [474] 21-11/16 [550] 25-11/16 [652] 25-11/16 [652] 25-11/16 [652] 28-11/16 [728] 28-11/16 [728] “C” 30-11
Hood Dimensions Front of Hood Canopy (90 [2286]) Switches to be on Front of the Hood 69 1/2 ±1/8 [1765 ±3.2] Finished Floor NOTE: All dimensions in inches [mm] unless otherwise noted. Hood Weight (Does not include ovens) AVI 1832 AVI 2440 AVI 3240 AVI 3255 AVI 3270 AVI 3855 AVI 3870 Single Stack 560.39 [254] 644.84 [292] 708.73 [321] 757.05 [343] 790.12 [358] 812.03 [368] 845.32 [383] Double Stack 513.78 [233] 576.72 [262] 640.25 [290] 681.29 [309] 704.08 [319] 728.
Hood Electrical Requirements Inputs into VFD Box The AVI Hood system requires two (2) separate electrical inputs and has provision for one (1) optional input. All inputs and input connection points are located on the top of the VFD control box, as well as the connection to the exhaust fan. All optional outputs (fire suppression, HVAC dampers), are also located on the top of the VFD control box.
Hood Electrical Requirements VFD Control Box - Standard Electrical supply, MUA and fire suppression controls are wired through top of VFD control box Terminal Block (TB) Grounding Block Fuses VFD Controller MUA Damper Relays (optional) Fire Suppression Relay (optional) Oven/hood interface and power cords connect to bottom of VFD control box Wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements Power to VFD Controller - Standard 230V 1 Phase 10 Amp Hot TB Positions 1&2 Neutral TB Position 3 Ground Conduit and breaker panel shown for reference only Terminal Block (TB) Top of Variable Frequency Drive (VFD) Box 49
Hood Electrical Requirements Power for Ovens - Standard Three (3) 120V 1 Phase 20 Amp Circuits Hot TB Positions 7, 9 & 11 Neutral TB Positions 8, 10 & 12 Conduit and breaker panel shown for reference only
Hood Electrical Requirements Power from VFD to Exhaust Fan - Standard Exhaust Fan (not to scale) Conduit shown for reference only All wiring below the terminal block to be done by XLT Ovens and is removed for clarity. See schematic for wiring details.
Hood Electrical Requirements Fire Alarm Relay - Standard (optional) 120VAC Supply Fire Alarm Switch Signal in from fire suppression panel TB Position 17 All wiring below the terminal block to be done by XLT Ovens and is shown for reference only. See schematic for wiring details. Oven power in Neutral A1 A2 L3 T3 L2 T2 L1 T1 Oven power out Conduit, breaker panel and fire suppression panel shown for reference only.
Hood Electrical Requirements MUA Damper Relays - Single Output Configuration - Standard (optional) MUA Unit Relay (shown for reference only) All wiring below the terminal block to be done by XLT Ovens and is shown for reference only. Some wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements MUA Damper Relays - Multiple Output Configuration - Standard (optional) MUA Unit 3 Relay Power In Power Out A1 MUA Unit 1 Relay MUA Unit 2 Relay Power In Power Out A1 A2 R2 A2 Neutral All wiring below the terminal block to be done by XLT Ovens and is shown for reference only. Some wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements VFD Control Box - World Grounding Block Electrical supply, MUA and fire suppression controls are wired through top of VFD control box Terminal Block (TB) Terminal Block (TB) 24V Transformer Fuses VFD Controller MUA Damper Relays (optional) Fire Suppression Relays (optional) Oven/hood interface and power cords connect to bottom of VFD control box Wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements Power to VFD Controller - World 230V 1 Phase 10 Amp Hot TB Positions 1&2 Ground Conduit and breaker panel shown for reference only Terminal Block (TB) Terminal Block (TB) Top of Variable Frequency Drive (VFD) Box
Hood Electrical Requirements Power for Ovens - World Three (3) 230V 1 Phase 20 Amp Circuits Hot TB Positions 7 &8 Hot TB Positions 9 &10 Hot TB Positions 10 & 11 Conduit and breaker panel shown for reference only 57
Hood Electrical Requirements Power from VFD to Exhaust Fan - World Exhaust Fan (not to scale) Conduit shown for reference only Ground (green) Red TB Position 4 Blue TB Position 5 Black TB Position 6
Hood Electrical Requirements Fire Alarm Relay - World (optional) 120VAC Supply To TB Position 13 Fire Alarm Switch to TB Position 14 Signal in from fire suppression panel TB Positions 13 & 14 All wiring below the terminal blocks to be done by XLT Ovens. Some wiring has been removed for clarity. See schematic for wiring details. B B A B A B A B A Conduit, breaker panel and fire suppression panel shown for reference only.
Hood Electrical Requirements MUA Damper Relays - Single Output Configuration - World (optional) MUA Unit Relay Power In Power Out A1 A2 Supply from breaker panel (up to 10 Amps Determined by MUA) R4 R3 R2 Relays located in VFD box All wiring below the terminal block to be done by XLT Ovens and is shown for reference only. Some wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements MUA Damper Relays - Multiple Output Configuration - World (optional) MUA Unit 3 Relay Power In MUA Unit 2 Relay Power Out A1 A2 Power In MUA Unit 1 Relay Power Out A1 A2 Power In Power Out A1 A2 Supply from breaker panel (up to 10 Amps Determined by MUA) R4 R3 R2 Relays located in VFD box All wiring below the terminal block to be done by XLT Ovens and is shown for reference only. Some wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements Without VFD Controller Electrical is wired through top of control box Terminal Block (TB) Grounding Block Oven/hood interface cords connect to bottom of control box Wiring removed for clarity. See schematic for wiring details.
Hood Electrical Requirements Without VFD Controller Standard 120V 1 Phase 10 Amp Circuit Hot TB Position 11 Neutral TB Position 12 Ground Some wiring removed for clarity. See schematic for wiring details. Without VFD Controller World 2300V 1 Phase 10 Amp Circuit Hot TB Positions 11 & 12 Ground Some wiring removed for clarity. See schematic for wiring details.
Hood Ventilation Requirements Exhaust Flow Rates (min. recommended) AVI 1832 AVI 2440 AVI 3240 AVI 3255 AVI 3270 AVI 3855 AVI 3870 Single 246 [6.97] 313 [8.86] 402 [11.38] 402 [11.38] 469 [13.28] 402 [11.38] 469 [13.28] Double Stack 506 [14.33] 644 [18.24] 828 [23.45] 828 [23.45] 966 [27.35] 828 [23.45] 966 [27.35] Triple Stack 766 [21.69] 975 [27.61] 1254 [35.51] 1254 [35.51] 1463 [41.43] 1254 [35.51] 1463 [41.
Hood Rough-In Specifications Signal Wires for HVAC Dampers Exhaust Fan HVAC Unit Fan Curb Roof 3 Phase Power from VFD Box 1/2” All-thread Supported by Unistrut (4 Locations) Welded Duct Signal Wire for Fire Alarm (3) 120V Power to VFD Box for Ovens AVI Hood Ceiling Joist Drop Ceiling Single Phase Power to VFD Box Fire Suppression Regulator Panel Electrical Panel Fire Suppression Supply Lines Gas Manifold XLT Ovens Finished Floor All structural members, electrical, gas & fire suppression equip
Hood Installation Check all local codes prior to installation. Special requirements may be necessary depending upon building material construction. It is the installing contractor’s responsibly to ensure that the structure the hood is to be hung from meets all codes WARNING and can carry the hood weight. Purchaser’s Responsibility It is the responsibility of the purchaser: Thoroughly review the floor plans and specifications.
Hood Installation Prepare Ovens—Front Shroud Brackets Install one (1) right and one (1) left front shroud bracket on each oven using the two (2) screws already installed in conveyor opening bezel. Orientate brackets with square hole towards bottom and flange toward center of oven.
Hood Installation Prepare Ovens - Right Hand Control Box Closeout Bracket Install one (1) control box closeout bracket on top oven using the two (2) screws already installed in conveyor opening bezel. Orientate bracket with flange toward center of conveyor.
Hood Installation 69 Prepare Ovens - Left Side Back Shroud Brackets For Models 1832, 2440, 3240, 3255 & 3855 Install one (1) Left Back Shroud Bracket for each oven. The bottom oven will receive the bracket with a square hole, orientate this bracket with the square hole toward the floor. The other ovens will receive one(1) bracket each without the square hole. Conveyor Opening Screws Left Back Shroud Bracket Conveyor removed for clarity.
Hood Installation Prepare Ovens - Left Hand Control Box Closeout Bracket For Models 3270 & 3870 Install one (1) control box closeout bracket on top oven using the two (2) screws already installed in conveyor opening bezel. Orientate bracket with flange toward center of conveyor.
Hood Installation Prepare Ovens - Control Box Side Closeout Right Hand - For All Models Install right hand control box side closeout using screws already installed on control boxes, at locations shown with arrows. Upper flange of closeout to face front of oven. (double stack shown, brackets for single and triple will look slightly different) Right Hand Control Box Side Closeout Install left hand control box side closeout by same method as right side.
Hood Installation Prepare Hood Attach inside filler panels using eight (8) 10-24 x 1/4” screws (provided). Tighten screws in adjustment slots with panels pushed as far as possible toward hood. Attach back panel stiffener to inside filler panels using 10-24 x 1/2” Screws and Nuts, two (2) each end (provided). Install so that the screw heads are inside filter areas.
Hood Installation Lifting Gear Setup Saddle End Beam Bracket Locking Pin Threaded Rod Lifting Hook Nuts Left end shown, right end similar 38xx 32xx 1. 2. 3. 4. 5. 6. 7. 8. 24xx 18xx End Beam Saddle placement 24xx 18xx 38xx 32xx Insert end of each threaded rod into the small holes located on bracket so that ends are to the inside of bracket. Thread nuts about 1/2” (12.7mm) onto threaded rod ends. Slide saddle pin through appropriate hole located on End Beam, see placement diagram above.
Hood Installation Lifting Jack Setup Each lifting jack consists of three (3) parts; the pole/winch assembly, extension tube, and tripod base. 1. Place the smaller end of extension tube into tripod base. 2. Place bottom of the pole into the top of the extension tube and tighten knob. WARNING Check for smooth operation. The cable should not be pinched and should pass smoothly over the pulley on top of the pole assembly. Inspect cable prior to each use.
Hood Installation Stacking Hood on the Ovens 1. Fully insert the lifting jacks into the lifting gear assemblies attached to each end of the hood. Failure to engage properly can result in damage, injury, or death from a falling Hood. WARNING 2. Raise the hood high enough to clear the cart or skid. Both jacks should be raised in unison, otherwise they may bind and a dangerous situation may develop. Do not put any part of yourself under the hood at any time. The hood is top heavy.
Hood Installation Hang Hood From Ceiling Joists After the AVI Hood has been installed on top of the ovens and moved into position, it must be hung from the building structure to relieve the weight from the ovens and to allow the ovens to be moved for maintenance and cleaning. XLT Ovens supplies two (2), 24” [610mm] long pieces of Unistrut for installation under the horizontal air duct located in the center of the hood.
Hood Installation Install Grease Trays, Light Bulbs & Light Bulb Covers Light Fixture Handle Grease Tray Light Bulb Grease Tray Clear Light Bulb Cover Left end shown - Repeat for right end Install Grease Filters & Filler Panels Upper Filter Bracket Grease Filter Lower Filter Bracket Installed Grease Filters and Filler Panel Left End Shown - Repeat for Right End 1. 2. 3. 4. Insert bottom of grease filter filler panel behind lower filter bracket.
Hood Installation Install Shroud Hanging Brackets Install the end and front/back shroud hanging brackets with acorn nuts (provided). End brackets require three (3) acorn nuts and front/back brackets require (2) acorn nuts. Flange with keyholes should protrude into filter area.
Hood Installation Install Corner Posts & Bottom Rails Install corner post onto threaded stud located in between shroud hanging brackets. Secure with one (1) acorn nut. (4 locations) Corner Post Bottom Rail Front/Back Bottom Rail Left & right ends similar Threaded Stud Acorn Nut Corner Post Cage Nut Corner Post Slide tabs on bottom rails into square holes in bottom of corner posts and brackets. Install with cage nuts facing away from ovens.
Hood Installation Install Control Box Upper Closeout 1. 2. 3. 4. Install one (1) Control Box Upper Closeout Panel above upper Control Box. Line up shoulder bolts located near top of panel with keyholes in bracket, allow panel to drop into place. Install thumb screws from conveyor side through previously installed bracket, thread into Control Box Upper Closeout Panel. Repeat for left side if ovens have left hand control boxes.
Hood Installation Install Shroud Panels - Front and Ends End load/end unload shown. Other configurations available. Line up shoulder bolts with keyholes in bracket. Allow panel to drop into place. Secure bottom of Shroud Panel to bottom rail with two (2) thumb screws. Crumb Tray Crumb Tray Door Open crumb tray doors located in front shroud panels & verify crumb trays are easily removable. Adjust All-thread supporting hood from ceiling joists as needed for best fit.
Hood Installation Install Back Shroud Panel For models 1832, 2440, 3240, 3255 & 3855 Line up shoulder bolts with keyholes in bracket. Allow panel to drop into place. Secure bottom of Shroud Panel to bottom rail with two (2) thumb screws.
Hood Installation Oven Power Cord Modification Replace the straight-blade plug with a twist-lock plug. Follow the plug manufacturer’s instructions. Black wire to Gold terminal Strain Relief Screws #6 Blue Fork Terminal Twist-Lock Plug Housing White wire to Silver terminal Green wire to Center terminal Hood Control Cord Assembly The Oven ON/OFF switch must be bypassed when used with an AVI Hood.
Hood Installation Connect Oven Power and Controls to Hood After appropriate connections have been made, the oven power and control cords must be connected to the VFD box located on the right back corner of the AVI Hood. All VFD boxes are outfitted with three (3) power outlets and three (3) control cord outlets, regardless of how many XLT Ovens are installed. For a single oven use “Top” location.
VFD Adjustments At initial start up, the VFD controller must be set to ensure proper exhaust fan operation. 1. Set F001 (Main profile parameters). This will set the output frequency for the exhaust fan. a. b. c. d. e. f. Press & hold the function key until d001 displays. Use the up / down arrows to reach the F001. Press the function key one time. With all of the switches in the off position the display should read 0.0 Turn on the oven switches to be set.
Hood Operator Controls The control switches are located on the front of the hood. When XLT Ovens are outfitted with AVI Hoods, the main switch on the oven is disabled and no longer operates. The switch on the AVI Hood overrides the oven switch. NOTE Hood Operation 1. Turn the light switch on. 2. Turn the desired oven switch on. Refer to the Oven start-up section for instructions on how to adjust temperature and conveyor speed.
Hood Initial Start-up Checklist - Remove & Return to XLT Ovens AVI Hood Model #: ______________________________________ Serial #: _______________________________________ Hood hung prior to oven installation: Yes No Exhaust fan purchased from XLT: Rating of exhaust fan: _____________ CFM Exhaust fan operates with hood switches: Height from bottom of hood to finished floor: _________ Yes No Switches face front of ovens: Yes No VFD box cover replaced after installation: Yes No All shroud panels pr
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Hood Valance Kit (Optional) The valance kit size is determined by AVI Hood size and distance from the finished floor to the installed drop ceiling height. The valance kit screws directly to the AVI Hood and does not require any structural support. All kits have provisions for hood fire suppression piping to pass through without modification. The plastic coating must be removed from all parts prior to installation.
Hood Valance Kit (Optional) Install Valance Brackets 10-24 Screws Internal Tooth Lock Washers Right Corner Bracket End Bracket Left Corner Bracket Left Corner Bracket Front of Hood Front/Back Brackets End Bracket Right Corner Bracket Install all brackets with through holes down and vertical flange facing away from center of hood. Fasten to top of hood with screws & washers provided.
Hood Valance Kit (Optional) Install Corner Panels Internal Tooth Lock Washers 10-24 Screws Fire Suppression Slot Left Back Corner Panel Corner Panels Front Of Hood Install corner panels with flanges toward center of hood. Fasten to brackets, front, and back panels with screws & washers provided. Install End Panels End Panel End Panel 10-24 Screws Internal Tooth Lock Washers Install end panels with flanges toward center of hood. Fasten to brackets and corner panels with screws & washers provided.
Hood Cleaning Example Maintenance & Cleaning Schedule for AVI Hoods Task Daily Weekly Monthly Semi- annual Wipe down Exterior Clean Exterior Clean Light Globe Replace Light Bulbs As needed Empty Grease Tray Check Filters Clean Filters As per manufacturer’s recommendation Clean Duct Work / Fan WARNING Ovens must be cool and the oven power cord must be unplugged from the VFD before any cleaning is done. 1. Remove and wipe clean front and end shroud panels. 2.
Hood Cleaning 3. Remove and clean grease filters, filler panel and grease tray. To remove grease filters and filler panels. a. Slide the filter or filler panel up. b. Tilt bottom into duct area until filter clears lower filter mount as shown and remove. Grease Filters & Filler Panels As viewed from front. Some parts removed for clarity. Grease Filters Filler Panel to be over Grease Tray Front of Hood Grease Tray As viewed from end. Some parts removed for clarity.
Hood Troubleshooting Before trouble-shooting the hood; 1. 2. 3. 4. 5. 6. Make sure that the hood is connected to the proper voltage. Check to see that the breaker in the service panel is not disengaged. Check to see that all fuses in the hood control box are not blown. Check to see that the filters are clean and installed properly. Check to see if the exhaust fan is rotating in the correct direction. Check to see if the VFD Controller is in Run Mode.
Oven Schematic 1832, 2440, 3240, 3255 & 3855 - Square Burner - Standard 95
Oven Schematic 1832, 2440, 3240, 3255 & 3855 - Square Burner - World
Oven Schematic 1832, 2440, 3240, 3255 & 3855 - Round Burner - Australia 97
Oven Schematic 3270 & 3870 - Square Burner - Standard - RH Control Box
Oven Schematic 3270 & 3870 - Square Burner - Standard - LH Control Box 99
Oven Schematic 3270 & 3870 - Square Burner - World - RH Control Box
Oven Schematic 3270 & 3870 - Square Burner - World - LH Control Box 101
Oven Schematic 3270 & 3870 - Round Burner - Australia - LH Control Box
Oven Schematic 3270 & 3870 - Round Burner - Australia - RH Control Box 103
Hood Schematic - Standard
Hood Schematic - World 105
Hood Schematic - Without VFD Controller
