Bakers Pride Oven VH1620E, VHVA1620E, VH1828E, VHVA1828E Oven Operating instructions
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INSTALLATION AND OPERATING INSTRUCTIONS Models: VH1620E, VHVA1620E, VH1828E & VHVA1828E COUNTERTOP MODEL ELECTRIC CONVEYOR OVENS INTENDED FOR OTHER THAN HOUSEHOLD USE RETAIN THIS MANUAL FOR FUTURE REFERENCE OVEN MUST BE KEPT CLEAR OF COMBUSTIBLES AT ALL TIMES ! FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. ! ! 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 or servicing this equipment. ! Initial heating of oven may generate smoke or fumes and must be done in a well ventilated area. Overexposure to smoke or fumes may cause nausea or dizziness. This equipment has been engineered to provide you with year-round dependable service when used according to the instructions in this manual and standard commercial kitchen practices. ANSI/NSF4 BAKERS PRIDE OVEN CO., INC. (914) 576-0200 Phone (914) 576-0605 Fax 30 Pine Street New Rochelle, NY 10801 1 P/N U4173A 12/05 (800) 431-2745 US & Canada www.bakerspride.com WebAddress Bakers Pride takes pride in the design and quality of our products. When used as intended and with proper care and maintenance, you will experience years of reliable operation from this equipment. To ensure best results, it is important that you carefully read and follow the instructions in this manual. Installation and start-up should be performed by a qualified installer who has thoroughly read, understands and follows these instructions. If you have questions concerning the installation, operation, maintenance or service of this product, contact our Technical Service Department at (800) 431-2745. SAFETY PRECAUTIONS Before installing and operating this equipment be sure everyone involved in its operation are fully trained and are aware of all precautions. Accidents and problems can result by a failure to follow fundamental rules and precautions. The following words and symbols, found in this manual, alert you to hazards to the operator, service personnel or the equipment. The words are defined as follows: ! DANGER: This symbol warns of imminent hazard which will result in serious injury or death. ! WARNING: This symbol refers to a potential hazard or unsafe practice, which could result in ! CAUTION: This symbol refers to a potential hazard or unsafe practice, which may result in minor or ! NOTICE: This symbol refers to information that needs special attention or must be fully understood serious injury or death. moderate injury or product or property damage. even though not dangerous. ! ! ! ! GENERAL INFORMATION THIS MANUAL SHOULD BE RETAINED FOR FUTURE REFERENCE CAUTION: These models are designed, built, and sold for commercial use. If these models are ! ! positioned so the general public can use the equipment make sure that cautions, warnings, and operating instructions are clearly posted near each unit so that anyone using the equipment will use it correctly and not injure themselves or harm the equipment. WARNING: Check the data plate on this unit before installation. Connect the unit only to the voltage and frequency listed on the data plate. Connect only to 1 or 3 phase as listed on the data plate. ! WARNING: Electrical and grounding connections must comply with the applicable portions of the ! WARNING: Disconnect device from electrical power supply and place a Tag Out-Lockout on the national electrical code and/or other local electrical codes. power plug, indicating that you are working on the circuit. ! ! ! ! WARNING: Install per the spacing requirements listed in the installation section of this manual. We ! strongly recommend having a competent professional install the equipment. A licensed electrician should make the electrical connections and connect power to the unit. Local codes should always be used when connecting these units to electrical power. In the absence of local codes, use the ! latest version of the National Electrical Code. WARNING: This device should be safely and adequately grounded in accordance with local ! codes, or in the absence of local codes, with the National Electrical code, ANSI/NFPA 70, Latest Edition to protect the user from electrical shock. It requires a grounded system and a dedicated circuit, protected by a fuse or circuit breaker of proper size and rating. Canadian installation must comply with the Canadian Electrical Code, CSA C22.2, as applicable 2 ! ! WARNING: A factory authorized agent should handle all maintenance and repair. Before doing any ! WARNING: Never clean any electrical unit by immersing it in water. Turn off before cleaning ! WARNING: An earthing cable must connect the appliance to all other units in the complete maintenance or repair, contact Bakers Pride. surface. installation and from there to an independent earth connection. ! ! ! NOTICE: The unit when installed, must be electrically grounded and comply with local codes, or in ! the absence of local codes, with the national electrical code ANSI/NFPA70- latest edition. Canadian installation must comply with CSA-STANDARD C.22.2 Number 0 M1982 General Requirements-Canadian Electrical Code Part II, 109-M1981- Commercial Cooking Appliances. ! WARNING: SHOCK HAZARD - De-energize all power to equipment before cleaning the equipment. ! NOTICE: This product is intended for commercial use only. Not for household use. ! ! ! NOTICE: Local codes regarding installation vary greatly from one area to another. The National ! Fire Protection Association, Inc. states in its NFPA96 latest edition that local codes are Authority Having Jurisdiction when it comes to requirements for installation of equipment. Therefore, installation should comply with all local codes. IMPORTANT FOR FUTURE REFERENCE Please complete this information and retain this manual for the life of the equipment. For Warranty Service and/or Parts, this information is required. Model Number Serial Number Notes: 3 Date Purchased ! TABLE OF CONTENTS SECTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ITEM PAGE Receiving Location & Minimum Clearances Installation Stacking Electrical Connections System Check Initial Start-Up Shutdown Special Features Cleaning Operator Maintenance Rating Plate Conveyor Removal Conveyor Installation Conveyor Belt Speed Calibration Troubleshooting Guide Temperature Control Conversion Chart Solid State Relay Identification Electrical Schematics & Wiring Diagrams A. VHVA1620E Schematic, 208, 220 or 240VAC, 1 Phase B. VHVA 1620E Wiring Diagram, 208, 220 or 240VAC, 1 Phase C. VHVA1620E Schematic, 208, 220 or 240VAC, 3 Phase D. VHVA 1620E Wiring Diagram, 208, 220 or 240VAC, 3 Phase E. VH 1620E Schematic, 208, 220 or 240VAC, 1 Phase F. VH 1620E Wiring Diagram, 208, 220 or 240VAC, 1 Phase G. VH 1620E Schematic, 208, 220 or 240VAC, 3 Phase H. VH 1620E Wiring Diagram, 208, 220 or 240VAC, 3 Phase I. VHVA 1828E Schematic, 208, 220, or 240, 1 Phase J. VHVA 1828E Wiring Diagram, 208, 220, or 240, 1 Phase K. VHVA 1828E Schematic, 208, 220, or 240, 3 Phase L. VHVA 1828E Wiring Diagram, 208, 220, or 240, 3 Phase M. VH 1828E Schematic, 208, 220, or 240, 1 Phase N. VH 1828E Wiring Diagram, 208, 220, or 240, 1 Phase O. VH 1828E Schematic, 208, 220, or 240, 3 Phase P. VH 1828E Wiring Diagram, 208, 220, or 240, 3 Phase Parts Lists & Exploded Views A. External Covers B. Conveyor Assembly C. Blower Motor Cover Assembly D. Blower Assembly E. VH Series Only F. Plenum “Finger” Assembly G. Main Power Control Box H. Electric Control Box I. Cool Down Thermostat, Elements, Switch & Probe Warranty 4 5 5 5 6 6 8 10 11 11 12 13 14 15 15 16 18 23 24 26 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 42 42 43 43 43 43 44 45 46 47 I. INSTALLATION INSTRUCTIONS MODELS COVERED VH1620E VHVA1620E VH1828E VHVA1828E TOTAL KW 6.4 6.4 12.4 12.4 PHASE 1 or 3 1 or 3 1 or 3 1 or 3 1. RECEIVING Read the notice on the outside carton regarding damage in transit. "CONCEALED DAMAGE", damage discovered after opening the crate(s), MUST be reported immediately to the carrier. The carrier will perform an inspection of the damage and furnish forms for the consignee's claim against the carrier. Retain ALL packaging material - including outer carton, until the inspection has been completed. Proper and secure storage facilities should be arranged for the conveyor oven(s) if necessary to protect it from outdoor or damp conditions at all times prior to installation. 2. LOCATION AND MINIMUM CLEARANCES Adequate air space must be provided for the proper venting of the rear exhaust air and provision made for venting of cooking vapors. The Conveyor Oven must be installed in a well-ventilated area. NOTE: Attached rear rubber bumpers must not be removed and can contact a rear wall if present. Conveyor Ovens can be installed with "ZERO" clearances (back and sides) from combustible and noncombustible materials. (Rear rubber bumpers are the “Zero” clearance points on the back of the unit.) S e e rating plate attached to the control box door panel. The Conveyor Oven is intended for countertop mounting if mounted on the 4" legs provided. The Oven is NOT approved for mounting on any floor. Keep the area around your conveyor oven free and clear of all combustible materials. 3. INSTALLATION Place the conveyor oven and parts as close to the area of final installation before uncrating. Your conveyor oven is packed sitting on its bottom. Leave it this way until unpacked. The pallet may be left under the conveyor oven for convenience in further handling. Unpack carefully to avoid damage to the unit. If concealed damage is discovered, follow the instructions detailed in Section 1 above. DO NOT LIFT EXCESSIVE WEIGHT A. Legs are shipped unattached. Make sure each leg is attached and tightened before placing the conveyor oven in place. Each leg is adjustable to accommodate variations in the mounting surface. B. Using sufficient help (2 or more people), lift the conveyor oven upward and place on the countertop surface. Lift the conveyor oven by gripping the bottom of the unit. THE FOLLOWING ITEMS ARE NOT TO BE USED AS LIFTING "HANDLES": Side-mounted control boxes (2), removable front door (with handles), the conveyor belt assembly, the rear fan housing assembly. C. THE CONVEYOR BELT ASSEMBLY IS MOUNTED BACKWARDS FOR SHIPPING. THE CONVEYOR BELT ASSEMBLY MUST BE REMOVED AND REVERSED PRIOR TO OPERATION. See Section 6a, b for further instructions. D. Position the conveyor oven in its final location, maintaining the minimum clearances specified in Section 2 above. 5 E. Remove all loose parts and packages from the interior of the conveyor oven. The conveyor oven has (4) air-directing "plenum fingers" in the interior cooking chamber. Check these items for proper mounting. For further information on removal and mounting of interior panels, see Section 10, cleaning. 4. STACKING Your conveyor oven(s) can be stacked up to (3) high. Each unit is built exactly the same, so it does not matter in which order they are stacked. For stacking of (2) units, remove the legs from the second (upper) unit prior to mounting on top of the bottom unit. For stacking of (3) units, it is preferable to use a "stacking kit", which allows all conveyor ovens to be supported by an external framework, such as a table, with each conveyor oven having all legs removed. "CAUTION: If you use a multiple stack assembly, remember that each oven has its own power disconnect. Make sure When When stacking, stacking, align Dimpled remove Foot of upper legs from unit into upper unit. matching Dimple of bottom unit. Use Stacking Brackets to secure ALL main switches are OFF before any ovens cleaning or maintenance is performed. together. 1. 2. 3. 4. Remove two bottom screws from the top oven rear panel. Remove two top screws from the bottom oven rear panel. Install the right and left stacking brackets as shown in above diagram. Reinstall the four removed screws. 5. ELECTRICAL CONNECTIONS General Instructions a) b) c) d) e) f) g) h) Only use copper conductor wires rated at 90°C suitably sized for the electric current drawn. Dual Air Model 1828E ovens are constructed for permanent connections - no power cord is supplied. Dual Air Model 1620E ovens are supplied with a flexible power cord and plug. Make sure the electrical supply corresponds with that specified on the rating plate. Only a licensed electrician should make the electrical connections. Proper connections are shown on the wiring diagrams as well as the rating plate. Wiring diagrams are located in the control box containing the Main Switch (green rocker). When installed, the unit must be electrically grounded in accordance with the local codes and/or the latest edition of the national Electrical Code ANSI/NFPA No. 70 in the USA or Canadian Electrical Code, CSA Standard C22.1, Part 1 in Canada. VH-, VHVA1620E: POWER SUPPLY (EACH) 6.4 KW/Hr Volts 200-208 220 230 240 200-208 220 230 240 Phase 1 1 1 1 3 3 3 3 L1 31 29 28 27 14 13 12 12 L2 31 29 28 27 21 18 17 18 VH-, VHVA1828E: POWER SUPPLY (EACH) 12.4 KW/Hr L3 N/A N/A N/A N/A 19 17 16 17 Volts 200-208 220 230 240 200-208 220 230 240 Phase 1 1 1 1 3 3 3 3 L1 60 56 54 52 27 25 24 23 L2 60 56 54 52 40 38 36 35 L3 N/A N/A N/A N/A 38 36 34 33 EACH CONVEYOR OVEN REQUIRES A SEPARATE CONNECTION ! CAUTION: Normal cooking operations may result in the production of smoke or fumes and may cause nausea and dizziness. Be sure the oven is placed in a well-ventilated area. 6 ! Field Connections NOTE: VERIFY THAT INPUT POWER MATCHES THE OVEN POWER REQUIREMENTS STATED ON THE RATING PLATE, WHICH IS LOCATED ON THE POWER CONTROL BOX. IF INPUT VOLTAGE DOES NOT MATCH OVEN VOLTAGE REQUIREMENTS, THE CORRECT CONVEYOR OVEN MUST BE INSTALLED. THE CONVEYOR OVEN CANNOT BE MODIFIED IN THE FIELD TO MATCH INPUT POWER. CAUTION: FOR 3 PHASE UNITS ONLY: VERIFY VOLTAGE OF EACH LEG. IF ANY LEG HAS A VOLTAGE GREATER THAN 240V THIS LEG MUST BE CONNECTED TO L-3 ON THE POWER DISTRIBUTION BLOCK. FOR DUAL AIR MODELS VH1620E, VHVA1620E: These units are supplied with a flexible power cord, according to the specification placed with the original order, which specified either single-phase or three-phase operation. No internal field connection is necessary. All internal connections are complete. Connect the power cord to the proper power receptacle. (see diagram below). Note: If a different power cord is required than supplied, the correct power cord must be obtained from a factory authorized service agent. Only an authorized service agent is to replace a power cord. FOR DUAL AIR MODELS VH1828E, VHVA1828E: a) Remove the cover from the Power Distribution Box Panel (under the control box on right side when facing front of unit). b) Locate the 4-pole Power Distribution Terminal Block mounted in the Power Distribution Box. c) Install the proper strain relief for the PERMANENT CONNECTION utilizing the knock-out hole provided. The strain relief should be securely fastened. d) Supply the proper conduit to the conveyor oven and connect through the strain relief. Connect properly-sized, copper-only conductor wires (rated 90°C) to the Power Distribution Terminal Block in accordance with the schematic shown on the rating plate, as well as the wiring diagram provided. NOTE: For three-phase connections, if any “High Voltage Leg” conductor is present, it MUST be mounted to L3 ONLY. Replace the cover and fasten securely with removed screws. L2 L1 L2 5 R (BROWN) L2 L2 4 E (BROWN) A 1620E 1 PHASE NEMA SPECS. 6-50P L15-30P 7 G L3 L2 L1 G4 E (BROWN) R (BROWN) L2 5 L2 L2 4 A 1620E 3 PHASE FACTORY WIRING TO INTERNAL CIRCUITS L3 G4 FIELD WIRING SERVICE CONNECTIONS G THREE PHASE CONNECTION FACTORY WIRING TO INTERNAL CIRCUITS FIELD WIRING SERVICE CONNECTIONS SINGLE-PHASE CONNECTION 6. a) SYSTEM CHECK Insure that the conveyor belt assembly is installed correctly, with the drive-shaft pin fitting firmly into the coupling that protrudes from the Power Control Box gearmotor output shaft. Visually check that the belt is flat and parallel to the countertop surface. If the belt is not parallel to the countertop, it may be necessary to re-align the gearmotor output shaft to the conveyor belt drive shaft pin. Follow this procedure: DISCONNECT THE POWER SUPPLY BEFORE SERVICING COMPONENTS INSIDE 1. EITHER OF THE CONTROL BOXES. SERIOUS INJURY, INCLUDING DEATH, MAY OCCUR IF CONTACT IS MADE TO INCOMING POWER. 2. Re-aligning the coupling / driven-shaft pin requires opening the Power Control Box door. 3. Insert a hex-head nut-driver tool to loosen the (4) screws that fasten the gearmotor to the box 4. Re-align the coupling to the conveyor belt drive shaft pin. If this is done properly, the driven- 5. When alignment is correct, re-tighten the (4) screws at the gearmotor before closing the side panel. shaft pin will fit snuggly into the slot of the gearmotor coupling. door. b) The conveyor belt is capable of traveling either Left-to-Right (standard), or Right-to-Left (optional). Direction of travel is determined by looking at the conveyor oven from the front of the unit. Direction of travel is controlled by a Reversing Switch that is located inside the control box containing the gearmotor. If the direction of travel needs to be reversed, follow this procedure: NOTE: CHANGE THE REVERSING SWITCH ONLY WHEN POWER IS DIS-CONNECTED TO THE CONVEYOR OVEN. OTHERWISE, FATAL DAMAGE WILL OCCUR TO THE GEARMOTOR, CAUSING THE CONVEYOR BELT TO STOP MOVING. THE GEARMOTOR WILL NEED TO BE REPLACED DUE TO INTERNAL STRUCTURAL DAMAGE. 1. DISCONNECT THE POWER SUPPLY BEFORE SERVICING COMPONENTS INSIDE EITHER OF THE CONTROL BOXES. SERIOUS INJURY, INCLUDING DEATH, MAY OCCUR IF CONTACT IS MADE TO INCOMING POWER. 2. Reversing the conveyor belt requires opening the Power Control Box door. 3. Locate a small rocker switch mounted just inside the control box, either black or orange in color. Two wires are connected to it. 4. Change the switch position to the opposite setting. No other changes are necessary. 5. Close and securely fasten the door. 6. Re-connect power to the unit. CONVEYOR BELT FITS INTO UNIT FROM FRONT DRIVE SHAFT PIN ALIGNS WITH COUPLING OF GEARMOTOR HINGED FRONT DOOR 8 CRUMB PANS MOUNT IN CONVEYOR FRAME c) Remove the front door and verify the proper orientation of the upper air return shield. The plenum fingers are identical, so any finger can be mounted in any location. UPPER AIR REMOVABLE RETURN SHIELD PLENUM "FINGERS" ASSEMBLY ALL FOUR IDENTICAL INTERNAL FIXED AIR PLENUM ASSEMBLIES END SLOTS TOWARDS HINGED DOOR LOWER AIR HINGED FRONT DOOR d) RETURN SHIELD ASSEMBLY Secure the (4) outer side panels to the main frame assembly using the ¼-turn fasteners that are attached to these panels. Mount these side panels AFTER the conveyor has been properly installed. (See above). Adjust the outer baffles UP / DOWN until they are in the correct position to allow product to enter and exit with minimal vertical clearance. This will reduce the amount of heat lost out the sides of the cook chamber. HANGER PINS ( ATTACHED TO UPPER COVER ) ADJUSTABLE BAFFLE 1/4-TURN FASTENERS (2) TOP & (2) BOTTOM ( CAPTIVE TO COVER ) UPPER COVER ( LEFT SIDE ) UPPER COVER ( RIGHT SIDE ) LOWER COVER ( RIGHT SIDE ) LOWER COVER ( LEFT SIDE ) ADJUSTABLE BAFFLE 9 7. INITIAL STARTUP a) Focus on the angled Electric Control Box containing the Main Switch (GREEN rocker type, lighted). The VHVA-Series oven is shown, which contains (5) adjustable knobs for blowers, temperature controls, and conveyor belt speed. VH-Series ovens only have (3) adjustable knobs that control temperature and conveyor belt speed. Two indicator lights are mounted to show when HEAT is being added to the system. MAIN SWITCH ON (I) OFF (0) UPPER TEMPERATURE TOP TEMPERATURE READY CONTROL CW=HOTTER INDICATOR LIGHT (HEAT) TOP AIR VELOCITY SPEED CONTROL CW=FASTER LOWER TEMPERATURE CONTROL CW=HOTTER CONVEYOR BELT SPEED CONTROL CW=SLOWER BOTTOM AIR VELOCITY SPEED CONTROL CW=FASTER ELECTRIC CONTROL BOX BOTTOM TEMPERATURE READY INDICATOR LIGHT (HEAT) 1) Flip ON the Main Switch. The switch should light up when ON ( I ), and be dark when OFF(O). Normal warm-up time is 20 -30 minutes for maximum temperature. Lower temperature settings will take less time. 2) IF THE MAIN SWITCH IS TURNED OFF DURING INITIAL START-UP, LEAVE UNIT OFF FOR AT LEAST 15 SECONDS TO ALLOW THE AIR VELOCITY CONTROLS TO RESET. TOGGLING THE SWITCH RAPIDLY (ON/OFF) WILL STALL THE BLOWER MOTORS AND ALLOW THE HEATERS TO COME ON EVEN THOUGH NO AIR WILL BE MOVING. THIS CAN DAMAGE THE UNIT. 3) Turn the Air Velocity Speed Controls to MAX (full Clockwise rotation) and listen for the air velocity speed to increase. 4) Set the Temperature Controls to MAX (full Clockwise rotation). The Indicator Lights will illuminate because there is not sufficient heat in the oven. The lights tell you that the heaters are ON. 5) Reduce the blower speed by turning the knob half-way (Counter-clockwise, until indicator mark on the knob is pointing straight UP). 6) Turn the temperature control knobs to 350°F. As each chamber (upper and lower) reach this temperature, the indicator lights will cycle ON and OFF, verifying that the heaters are operating properly in response to heat demand. 7) As you become familiar with the oven, you will set the Top and Bottom Temperature Controls to different settings, according to your cooking requirements. As the oven temperatures vary, the Indicator Lights will turn ON and OFF as the heaters respond to the cooking process. 8) Gradually turn the conveyor belt control Counter-clockwise and verify that the conveyor belt moves faster and faster. Repeat this process, turning the knob Clockwise, verifying that the conveyor belt moves slower. NOTE: AT SPEED SETTINGS ABOVE 10 (10-minute cook time), IT MAY BE HARD TO TELL THE BELT IS MOVING. PLACE A PAN ON THE BELT TO OBSERVE THAT IT MOVES INTO THE COOK CHAMBER. 10 8. SHUTDOWN COOL-DOWN CIRCUIT The conveyor oven is supplied with a special once the unit has been shut OFF. that helps cool the oven quickly This feature performs the following functions when the Main Switch is turned OFF at the end of the day: a) The blowers keep running to re-circulate air through the air chambers b) The heaters shut OFF. c) The conveyor belt stops moving. d) Once the oven has cooled down to a factory pre-set temperature, the blowers shut OFF. oven is now completely OFF. The NOTE: This pre-set temperature is not adjustable. NOTE: TO ACCELERATE THE COOLING OF THE OVEN, OPEN THE FRONT DOOR TO ALLOW COOLERAIR INTO THE SYSTEM. NOTE: IF THE MAIN SWITCH IS TURNED BACK ON WHILE THE UNIT IS COOLING DOWN, THE HEATERS AND CONVEYOR BELT WILL RE-ENGAGE TO BEGIN STANDARD COOKING OPERATION. THIS IS NORMAL AND WILL NOT DAMAGE THE OVEN. HOWEVER, THE UNIT WILL NEVER GET HOT ENOUGH TO COOK IF THE FRONT DOOR IS OPEN. 9. SPECIAL FEATURES Your new conveyor oven has been built with numerous enhancements to add flexibility and simplicity to your cooking operation. The conveyor ovens are built in two versions: VARIABLE HEAT/VARIABLE AIR VARIABLE HEAT/FIXED AIR The following special features ARE FOUND IN BOTH VERSIONS: A. INDEPENDENT TOP AND BOTTOM HEAT. Different temperature settings can be set for both top and bottom heat zones. B. VARIABLE-SPEED CONVEYOR BELT C. FIELD-REVERSIBLE CONVEYOR BELT TRAVEL D. FRONT-REMOVABLE CONVEYOR BELT. E. No need to slide the belt assembly out the side. INDEPENDENT TOP AND BOTTOM OUTER SIDE COVERS. Makes it possible to remove conveyor belt from the front. F. SYMMETRICAL OUTER COVERS (DUAL AIR 1828E ONLY). Top and bottom outer side covers can mount on either side. G. EASE IN CLEANING. This is accomplished by easily removable components for access to the cook chamber, air plenum fingers, and conveyor belt assembly. The VARIABLE HEAT/VARIABLEAIR VARIABLE-SPEED TOP AND unit has this additional feature. BOTTOM AIR VELOCITY. This allows for maximum flexibility controlling the cooking environment, as some food products require less top air than others. 11 in 10. CLEANING CAUTION: THE CONVEYOR OVEN CONTAINS ELECTRICAL COMPONENTS. TURN OFF THE OVEN AND DISCONNECT THE POWER BEFORE CLEANING BEGINS. DO NOT CLEAN THE CONVEYOR OVEN WITHAWATER JET. Use only a damp cloth. WEEKLY CLEANING: 1. Remove crumb pans. Remove conveyor belt assembly. 2. Remove plenum finger assemblies and disassemble for cleaning. Oven Exterior: CLEAN ONLY WHEN THE OVEN IS COLD. Standard construction of the exterior is of stainless steel. Deposits of baked-on splatter and grease, or discoloration may be removed by using any commercial cleaner recommended for stainless steel. Always rub with the grains and apply very light pressure. Rinse with a MOIST, NOT SOAKING, cloth. Oven Interior: CLEAN ONLY WHEN THE OVEN IS COLD. Standard construction of the interior (cook chamber) is of aluminized steel, and requires care not to over-clean and scratch the surface. CAUTION: DO NOT USE OVEN CLEANERS, CAUSTIC SOLUTIONS OR MECHANICAL MEANS BECAUSE THESE WILL DAMAGE THEALUMINIZED SURFACES . Use only the detergent solutions and cleaners that meet national and/or local codes. Clean the walls of the cook chamber with a mild soap and water solution. To clean the interior of the conveyor oven, it is necessary to remove the front door, the (4) outer sides panels, the conveyor belt assembly, and the (4) air plenum fingers. (See page 9.) Conveyor BeltAssembly 1. CONVEYOR BELT STILL MOUNTED IN OVEN: NOTE: USE CARE IF CLEANING THE CONVEYOR BELT WHILE IT IS STILL MOUNTED IN THE OVEN. EXCESSIVE FORCE MAY PRODUCE AN OVERLOAD CONDITION THAT COULD DAMAGE THE GEARMOTOR AND CAUSE THE OVEN TO BE RENDERED UNUSABLE. Using a plastic abrasive pad, wipe the conveyor belt in a back-and-forth motion to remove baked-on product. 2. Wipe clean with a hot, damp cloth. CONVEYOR BELT REMOVED FROM OVEN: Using a plastic abrasive pad, wipe the conveyor belt in a back-and-forth motion to remove baked-on product. NOTE: Wipe clean with a hot, damp cloth. IT IS NOT NECESSARY TO REMOVE THE BELT FROM THE FRAME ASSEMBLY FOR CLEANING. 3. Check the belt links for any sign of damage. If any links are bent, use a needle-nose pliers to repair prior to re-installation into the unit. Plenum Fingers The conveyor oven cooking. contains (4) plenum fingers that direct air onto the This 3-piece assembly comes apart for cleaning, as shown below: 12 product surface while AIR PLENUM FINGER ASSEMBLY Outer Perforated Inner Perforated Panel Screen Although symmetrical (Stainless Steel) (Stainless Steel) in design, inner panel must have flanges facing up as shown Main Panel (Aluminized Steel) The Outer Perforated panel is locked into place through a friction fit to the Main panel. of fastening also captures the Inner panel, holding it in place. panel, exposing the perforated Inner panel. This method The Outer panel slides off the Main The Inner panel is symmetrical in design, and may be placed in either direction, as long as the outer flanges are pointing UPWARD as shown in the figure above. The Inner and Outer panels are made of stainless steel, and therefore may be exposed to strong cleaners to remove baked-on grease, etc. Overnight soaking in a hot cleaning solution will improve the cleaning process. The Main panel is made of aluminized steel like the main cook chamber, and thus requires the same level of care to retain its integrity. Follow the same precautions as mentioned above for the main cook chamber. 11. OPERATOR MAINTENANCE WARNING DANGER: DISCONNECT THE POWER SUPPLY BEFORE SERVICING OR CLEANING THE OVEN. SERIOUS INJURY, INCLUDING DEATH, MAY OCCUR IF CONTACT IS MADE WITH INCOMING POWER. During normal operation of the oven, lubrication is not required. To achieve maximum efficiency, keep the oven clean. How you maintain your oven will determine how long it lasts. If the oven fails to operate, perform the following inspections BEFORE calling an authorized service agent: 13 1. 2. 3. Check to see if the main circuit breaker is ON at the breaker panel. . CAUTION IF FUSES ARE BAD, REPLACE ONLY WITH IDENTICAL FUSES. DO NOT SUBSTITUTE HIGHER VALUE FUSES, AS THIS MAY NULLIFY NEEDED PROTECTION FOR THE INTERNALELECTRICALCOMPONENTS. : Check the (2) 5-amp fuses located in the bottom of the Power Control Box Check that the Main Switch is ON. If operating properly, the rocker switch will be lighted when ON. 4. Check the setting of the temperature control thermostats (knobs). If operating properly, they will activate the amber indicator lights as you turn the knobs back and forth, calling for heat. It is very unlikely that the light will burn out. 5. If there is no air blowing, check the following: i. DUALAIR MODEL VHVA-SERIES RESET : the unit by turning the Main Switch OFF for at east15 seconds and then turning it back ON. This resets the blower speed controls. If this is not successful, turn off the wall circuit breaker for one minute and then turn it on again. ii. DUAL AIR MODEL VH-SERIES : section, open gearmotor). 1. the Power Observing the Control Box and PUSH IN THE RESET BUTTON NOTE: . device WARNING locate the at the beginning of this overload relay (above Try the Main Switch again. The Overload Relay is both a current limiting and a thermal , meaning that if one or both of the blower motors get jammed, the overload relay shuts the motor(s) OFF if there is excessive current going to the motor(s), or if excessive heat builds up in the overload relay due to an overload condition. Because it takes time for the relay to cool down, do not assume that there is another problem IF pushing the RESET button doesn't accomplish the task Both settings, not overheated RESET button pushed IN & overload , must be correct for proper operation. 6. If the conveyor belt does not move, check to see that the coupling setscrew is tight on the gearmotor output shaft. If the oven still does not operate, turn OFF the Main Switch and disconnect the power supply to the unit (if possible). Contact the factory, factory representative, or an authorized service agency. ALL SERVICING SHOULD BE PERFORMED ONLY BY A FACTORY AUTHORIZED SERVICE TECHNICIANORAGENT . 12. RATING PLATE A copy of the rating plate is shown here for reference. MODEL VH-SERIES MODEL VHVA-SERIES 14 13. CONVEYOR REMOVAL Extensive Engineering went into designing your oven for ease of cleaning. One SPECIAL FEATURE is the ability to remove the conveyor belt assembly straight out the font of the oven. Follow this procedure, using the diagram provided: (See drawing below) a) Remove any extension trays present, rotating them upwards to clear the conveyor frame. Flanges on the trays hook around the ends of the frame. b) Remove the two crumb pans. c) Remove the upper outer side covers, which have the adjustable baffles attached with pins. The covers are held in place with hand-twist fasteners. Turn these fasteners 90° counterclockwise to loosen, and 90° clockwise to tighten. d) It is not necessary to remove the outer lower side covers. NOTE: On Dual Air Models VH-, VHVA1828E Series ovens, the outer upper and lower covers are symmetrical, and can be mounted on either side of the oven. e) Open the front hinged door. f) Carefully supporting both right and left sides of the conveyor, lift the front edge slightly and pull towards you, watching as the drive shaft pulls out of the gearmotor coupling. 14. CONVEYOR INSTALLATION Installing the conveyor belt assembly is done in exact reverse order to its removal. The MOST IMPORTANT POINT is to properly align the drive shaft pin with the gearmotor coupling. If the drive shaft pin must be wedged into place for installation, the coupling location needs to be adjusted. procedure. See Section 6a for this DO NOT FORCE THE DRIVE PIN INTO THE COUPLING IF THEYDO NOTALIGN. IF EXTENSION TRAYS ARE IF EXTENSION TRAYS ARE PRESENT, ROTATE THEM PRESENT, ROTATE THEM UPWARDS TO REMOVE FROM UPWARDS TO REMOVE FROM CONVEYOR FRAME CONVEYOR FRAME UPPER OUTER SIDE UPPER OUTER SIDE COVER WITH COVER WITH ADJUSTABLE ADJUSTABLE BAFFLE BAFFLE 15 15. CONVEYOR BELT SPEED CALIBRATION The conveyor belt requires calibration to properly align the speed control knob on the Electric Control Box. Calibration is done by timing the belt as it passes between two timing marks located on the conveyor frame. This method will work regardless of belt travel direction. Follow the instructions below. Idler Shaft Belt Travel (Standard) Timing Marks on Conveyor Frame Conveyor Frame A. B. C. D. E. F. G. H 5” (1620E), or 7” (1828E) Remove the adjustment knob of the conveyor belt speed control (see page 10) using a small, standard screwdriver to loosen the setscrew. Locate the two timing marks as shown above. For the Dual Air VH-, VHVA1620E series, the marks are 5 inches apart; for the Dual Air VH-, VHVA1828E the marks are 7 inches apart. IF the timing marks are NOT present, use a black marking pen to mark the frame in the same manner. These distances represent exactly ¼ of the distance of the cook chamber: ¼ x 20” cook chamber (Dual Air 1620E) = 5”; ¼ x 28” cook chamber (Dual Air 1828E) = 7”. With this 1:4 ratio, it is possible to calibrate the belt speed. For example: 1. For a cook time of 1 minute, the time required to pass between timing marks would be: 60 seconds / 4 = 15 seconds. If the belt passes from one mark to the next in 15 seconds, this is exactly the same as a 1-minute cook time. 2. For a cook time of 6 minutes, the required time to pass between timing marks would be: 6 minutes x 60 seconds / 4. This equals 360 seconds / 4 = 90 seconds between marks. The belt needs to take 90 seconds (1-1/2 minutes) to move from one mark to the next to equal a 6-minute cook time. Using a black marking pen, mark any belt link near the outer edge. Using a stopwatch, check the time it takes for this link to move between the timing marks. Repeat this procedure several times until the distance is traveled in 90 seconds (recommended calibration interval), which equals a 6minute cook time. Now that the belt is moving at this calibrated speed, CAREFULLY re-mount the adjustment knob onto the belt conveyor speed control shaft, and tighten the setscrew so that the KNOB indicating mark is pointing at the number “6” on the surrounding label. The conveyor belt is now calibrated for ALL ranges as indicated on the label. The label numbers are COOK TIME in MINUTES. Simply point the knob indicating line to the desired cook time. NOTE: The label COOK TIME marks are close approximates, and may vary slightly from actual timing results using the method described. Cook/Bake Time is not the same as time of delivery. Time of Delivery is the actual time required for the first item, leading edge to trailing edge. Cook/Bake Time is leading edge to leading edge. For example, the Time of Delivery for a 16” pizza with a 6 minute Bake/Cook Time (using the Dual Air 1828 conveyor) is 9.4 minutes. 16 Time of delivery will be different for different sizes of products. Time will be the same for any size product. Time of Delivery Bake Time Trailing Edge of Product Leading Edge of Product Time of Delivery (TOD) = Bake Time X (Bake Chamber Length + Product Diameter) Bake Chamber Length Example 1: Bakers Pride Dual Air Model 1620, 6 Minute Bake Time, 16” pizza (time required for the 1st item): (TOD) = 6 Minutes 20” X (20 + 16) = 10.8 Minutes Example 2: Bakers Pride Dual Air Model 1828, 6 Minute Bake Time, 16” pizza (time required for the 1st item): (TOD) = I. 6 Minutes X (28 + 16) = 9.4 Minutes 28” To calculate production capacity per conveyor, per hour use the following formula. Oven Capacity/Hour (OCH) = Bake Chamber Length X Bake Chamber Depth 2 Product Diameter Example 1: Bakers Pride Dual Air Model 1620, 6 Minute Pizza, 16” Pizza OCH = 60 (20 X 16) X 6 = 12.5 2 16 Example 2: Bakers Pride Dual Air Model 1828, 6 Minute Pizza, 16” Pizza OCH = 60 (28 X 18) X 6 = 19.7 162 17 X 60 Min/Hr Bake Time 16. TROUBLESHOOTING GUIDE THE PROBLEM Oven doesn't start THE CAUSE THE SOLUTION Blown fuse(s) Replace fuse with identical type - 5 amp Main Switch OFF Turn ON Main Switch broken Replace Main circuit breaker OFF Turn ON Power cord disconnected (1620E only) Plug cord in (1620E only) Power connections broken Check power distribution terminal block below Power Control Box Conveyor belt Conveyor belt running backwards Switch to opposite position. moves unevenly. Unexpected speed Belt loose. Drive sprockets not engaging changes. CAUTION: TURN OFF POWER , open Power Control Box, and flip Reversing doesn't move, or it Tighten conveyor belt using adjustable tensioner at one end of belt frame. belt links. Verify that all sprockets are tight and properly aligned with belt "segments". If belt still too loose, remove one belt link. Belt master link(s) missing, broken, or installed incorrectly. Install master link(s) properly Conveyor belt installed backwards or Proper belt orientation is for outer belt upside down loops to be facing in oppositie direction of travel, and the outer loops to be on top of the trailing link. Speed setting very high (long cook time) Adjust speed to FAST to verify if knob is tight and potentiometer working correctly Tighten setscrew in knob on pot shaft. Speed knob loose NOTE: Mark on knob should line up with mark on label to indicate cook time in minutes. This may require calibration of belt movement using timing marks on conveyor frame. For CALIBRATION, see Section 15. Conveyor drive shaft not engaged to Align and engage shaft pin to slot in drive coupling coupling Drive coupling loose Tighten setscrew to gearmotor output shaft (shaft is "flatted" for setscrew grip) Properly re-attach and tighten to Drive coupling missing gearmotor output shaft Remove belt assembly to identify Conveyor belt jammed obstruction to belt movement. Remedy problem. Straighten bent belt links Drive shaft pin missing Locate and re-install or replace Drive sprockets worn out, missing, or mis- Replace sprockets or entire drive shaft aligned assembly. Tighten sprockets to shaft. Conveyor gearmotor failed CAUTION: THE FOLLOWING TESTS ARE PERFORMED WITH LIVE POWER WITH CONTROL BOX OPEN. THESE TESTS TO BE PERFORMED ONLY BY 1. Test by disconnecting conveyor belt. If no shaft rotation or motor noise when power applied, test power supply. 2. Test power supply input connections @ 3. Remove cover from power supply enclosure and verify integrity of internal 18 THE PROBLEM Conveyor belt doesn't move, or it THE CAUSE THE SOLUTION Conveyor gearmotor failed 4. Verify wire connectors from power (Continued) supply to gearmotor (2 wires w/connectors). If power supply doesn't moves unevenly. Unexpected speed 5. Verify potentiomter connections to changes. (Continued) gearmotor (3 wires w/connectors). If speed doesn't change when knob is turned, test with spare pot before replacing original pot. If all previous tests verify power and control to gearmotor, replace gearmotor. No air or not enough air coming from blower(s) Blower motor(s) "stalled" (not running when Main Switch ON) Turn Main Switch OFF for at least 15 seconds, then turn it ON again. This resets speed controls. If this doesnt help, turn OFF Main Circuit Breaker for 1 Minute, then turn it ON again. Remove source(s) of obstruction. Blower motor(s) "jammed" CAUTION: TURN OFF MAIN CIRCUIT BREAKER BEFORE REACHING INTO BLOWER WHEEL COMPARTMENT. SERIOUS INJURY COULD RESULT OTHERWISE!! Blower speed control(s) at minimum or low- Turn speed knob(s) clockwise to increase speed setting (model VHVA-Series only) air flow No sound or noise coming from blower(s) Turn both blower speed controls to minimum, then adjust each one separately to hear for sound changes which indicate air movement. (model VHVA-Series only) Blower(s) turning backwards. (Applies to models VH-, VHVA Threephase units, and VHVA Single-phase units. Does NOT apply to VH Singlephase units.) 19 Verify correct rotation - counterclockwise when standing in front of machine. Remove the front door, the conveyor belt assembly, and both upper and lower air return shilelds. Turn the Main Switch ON and OFF one time to start the blowers, and observe the rotation as the blowers slow down to stop. If rotation is incorrect, (threephase motors only), then two of the three power wires need to be swapped @ the terminal block to reverse direction of rotation. Re-check with same method. THE PROBLEM No air or not enough air coming from blower(s) (Continued) THE CAUSE THE SOLUTION Wire connections broken or loose between CAUTION: THE FOLLOWING TESTS 1speed controls and blower motor(s) 4 ARE PERFORMED WITH LIVE POWER (model VHVA-Series only) WITH CONTROL BOX OPEN, OR REAR MOTOR COVER REMOVED. THESE TESTS TO BE PERFORMED ONLY BY AN AUTHORIZED SERVICE AGENT. 1. Speed control wire connections are labeled U, V, and W. Insure connectors are tight. 2. Insure these (3) wires are tight on terminal block located in blower motor Wire connections broken or loose between compartment. blower motor(s) and terminal block. 3. Tighten wires from pot to speed control Wire connections broken or loose between at the header terminal on speed control board. potentiometer and speed control 4. One pot wire contains a 15K ohm resistor at the pot body. Verify this solder connection is good. 5. Blower(s) can stop if speed controls have not been reset (model VHVA-Series only). If yellow "FAULT" light on speed control circuit board is ON, first turn OFF main Switch for 15 seconds to rest control(s). If yellow "FAULT" light remains ON, disconnect main power cord or circuit breaker for 1 minute. If "FAULT" light persists, and all previous tests show normal, speed control can be tested in the following manner: swap motor wires from "good" speed control to "bad" control, and see if blower motor works. If YES, then "FAULTY" control is bad and needs replacing. If NO, then "FAULTY" control is OK, and motor may need replacing. 6. Test potentiometer by swapping "bad" pot to "good" speed control. If motor then works properly, pot is OK, and other speed control needs testing. (model VHVA-Series only). Blower speed control(s) failed Blower motor(s) failed 7. If all previous tests are normal, then blower motor has failed. Replace. 20 THE PROBLEM Oven not hot enough THE CAUSE Temperature setting too low Cooking too soon Temperature control not working properly THE SOLUTION Turn temperature control knob to right (clockwise) Oven takes 30-40 minutes to get up to stabilized operating temperature. Turn temperature knobs back and forth. Do both lights go ON & OFF? If YES, then temperature controls are OK. If NO, then malfunctioning light indicates which control needs further investigation. Use the following steps to check. CAUTION: THE FOLLOWING TESTS ARE PERFORMED WITH LIVE POWER WITH CONTROL BOX OPEN. THESE TESTS TO BE PERFORMED ONLY BY AN AUTHORIZED SERVICE AGENT. 1. Locate the two temperature contols mounted on the hinged door, near the cooling fan. Verify that ALL connections and connectors are properly fastened and tight. Power should be connected to terminals labeled 240 & VAC COM. 2. Locate the two wires from each of the temperature sensors (top left terminals labeled PROBE). These have braided insulation. Verify their integrity. 3. If necessary to test, disconnect one sensor at a time, and use voltmeter to measure resistance at sensor wires. Compare to resistance chart in back of this manual. If sensors show INFINITE resistance, sensor is bad. Replace. 4. If resistance reads value within range of chart, sensor is good, control needs further investigation. Re-connect sensor wire leads. (See diagram at back of manual for proper identification of controls). NOTE: temperature sensor lead wires are NOT polarity sensitive, since sensor is an RTD-type. 5. If both sensors are good, swap sensor leads between controls. Turn temperature knobs ON & OFF. Whichever light works properly, the OPPOSITE control is bad. Replace. Notes: 22 17. TEMPERATURE CONTROL CONVERSION CHART The temperature sensor (probe) that is supplied with this conveyor oven is an RTD type, which yields an output based on Ohms of resistance. This particular RTD device has a linear resistance curve that produces a very predictable amount of resistance that can be converted to degrees Fahrenheit. This particular device produces a resistance increase of 2 Ohms per every 1 degree F. The baseline value is approx. 1000 ohms at 32 °F (0°C). Ohms °F Ohms °F Ohms °F 1002 1004 1017 1025 1038 1046 1059 1067 1080 1088 1101 1109 1122 1130 1143 1151 1164 1172 1184 1193 1205 1214 1226 1234 1247 1255 1267 1276 1288 1286 1309 1317 1329 1338 1350 32 34 40 44 50 54 60 64 70 74 80 84 90 94 100 104 110 114 120 124 130 134 140 144 150 154 160 164 170 174 180 184 190 194 200 1358 1370 1379 1391 1399 1411 1420 1432 1440 1452 1460 1473 1481 1493 1501 1513 1521 1533 1541 1554 1562 1574 1582 1594 1602 1614 1622 1634 1642 1654 1662 1674 1682 1694 1702 204 210 214 220 224 230 234 240 244 250 254 260 264 270 274 280 284 290 294 300 304 310 314 320 324 330 334 340 344 350 354 360 364 370 374 1714 1722 1734 1742 1753 1761 1773 1781 1793 1801 1813 1821 1832 1844 1852 1860 1872 1879 1891 1899 1911 1918 1930 1938 1950 1957 1969 1977 1988 1996 2008 2027 2035 2046 380 384 390 394 400 404 410 414 420 424 430 434 440 446 450 454 460 464 470 474 480 484 490 494 500 504 510 514 520 524 530 540 544 550 23 18. Solid State Relay Labeling I.D. - Models VH-, VHVA1620E Conveyor Ovens UPPER ELEMENTS WIRE DESIGNATIONS ( LETTERS OR #s ) POWER BLOCK WIRING - SINGLE PHASE G A GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 ) 30 WHITE 14 GA ( L2 ) WHITE 18 GA BROWN14 GA ( R ) WHITE 14 GA ( L2 ) ( #5 ) WHITE 14 GA ( L2 ) BLACK 18 GA ( #4 ) BROWN 10 GA ( E ) L2 L1 SSR 1 C B 29 30 SSR 2 D E 29 29 SSR 3 F 34 Solid State Relay PROBE PROBE UPPER TEMP CONTROL BLACK 10 GA ( A ) LOWER ELEMENTS LOWER TEMP CONTROL POWER BLOCK WIRING - THREE PHASE G VAC COM GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 ) L3 L2 BROWN 14 GA ( R ) BROWN 10 GA ( E ) WHITE 14 GA ( L2 ) WHITE 18 GA ( #5 ) WHITE 14 GA ( L2 ) WHITE 14 GA ( L2 ) BLACK 18 GA ( #4 ) BLACK 10 GA ( A ) L1 240 VAC VAC COM 240 VAC CONTROL BOX DOOR RESISTANCE VALUES OF VARIOUS CIRCUITS Dual Air Models: VH-, VHVA1620E Conveyor Ovens NOTE: Fuses removed; (4) elements @ 1.5kw = 6.0kw; Ohms = Volts x Volts / Watts Circuit Leads Single Phase Units 208 Volt Between C & L2 Between D & L2 Between C & D Between C & F Between D & F Between F & L2 28.3 Ohms 28.3 Ohms 56.2 Ohms 42.5 Ohms 42.3 Ohms 14.5 Ohms 240 Volt Circuit Leads Three Phase Units 208 Volt Between C & L3 Between D & L2 Between C & D Between C & F Between D & F Between F & L2 38.9 Ohms 38.9 Ohms 77.6 Ohms 58.1 Ohms 58.1 Ohms 19.5 Ohms 24 28.3 Ohms 28.3 Ohms 1.2M Ohms 1.2M Ohms 42.3 Ohms 14.5 Ohms 240 Volt 38.9 Ohms 38.9 Ohms 1.3M Ohms 1.3M Ohms 58.1 Ohms 19.5 Ohms Solid State Relay Labeling I.D. - Models VH-, VHVA1828E Conveyor Ovens UPPER ELEMENTS WIRE DESIGNATIONS ( LETTERS OR #s ) POWER BLOCK WIRING - SINGLE PHASE A G GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 ) 30 WHITE 14 GA ( L2 ) WHITE 18 GA R 14 GA ( #5 ) WHITE 14 GA ( L2 ) WHITE 14 GA ( L2 ) BLACK 18 GA ( #4 ) BROWN 10 GA ( E ) L2 L1 SSR 1 C B 29 30 D E 29 29 SSR 2 SSR 3 F 34 Solid State Relay PROBE PROBE UPPER TEMP CONTROL BLACK 10 GA ( A ) LOWER ELEMENTS LOWER TEMP CONTROL POWER BLOCK WIRING - THREE PHASE G VAC COM GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 ) L3 L2 R 14 GA BROWN 10 GA ( E ) WHITE 14 GA ( L2 ) WHITE 18 GA ( #5 ) WHITE 14 GA ( L2 ) WHITE 14 GA ( L2 ) BLACK 18 GA ( #4 ) BLACK 10 GA ( A ) L1 240 VAC VAC COM 240 VAC CONTROL BOX DOOR RESISTANCE VALUES OF VARIOUS CIRCUITS Dual Air Models: VH, VHVA1828E Conveyor Ovens NOTE: Fuses removed; (4) elements @ 3kw = 12kw; Ohms = Volts x Volts / Watts Circuit Leads Single Phase Units 208 Volt Between C & L2 Between D & L2 Between C & D Between C & F Between D & F Between F & L2 14.3 Ohms 14.3 Ohms 28.5 Ohms 21.4 Ohms 21.4 Ohms 7.3 Ohms 240 Volt Circuit Leads Three Phase Units 208 Volt Between C & L3 Between D & L2 Between C & D Between C & F Between D & F Between F & L2 18.2 Ohms 18.2 Ohms 36.2 Ohms 27.3 Ohms 27.2 Ohms 9.3 Ohms 14.5 Ohms 14.3 Ohms 4.7M Ohms 4.7M Ohms 21.4 Ohms 7.2 Ohms 240 Volt 18.2 Ohms 18.2 Ohms 3.4M Ohms 3.4M Ohms 27.2 Ohms 9.4 Ohms Element Resistance Chart - VH-,VHVA-Series Conveyor Oven MODEL ELEMENT WATTAGE 208 VOLTS 220 VOLTS 240 VOLTS VH-,VHVHA1620E 1500 28.8 ohms 32.3 ohms 38.4 ohms VH-,VHVHA1828E 3000 14.4 ohms 16.1 ohms 19.2 ohms 25 19. ELECTRICAL SCHEMATICS & WIRING DIAGRAMS VHVA1620E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase G1 POWER BLOCK 10 GA. GREEN / YELLOW STRIPE GND 18 GA. GREEN / YELLOW STRIPE 8 6 14 L2 FUSE 2 5 AMPS G 4 7 5 N C1 SSR 1 BLACK B 42 C H Q C1 K P C1 RIGHT 1500 WATTS EACH D BLACK BLACK REAR EXHAUST FANS BLACK 23 A1 A2 A3 E2 E1 S1 S2 DIR RED S1 BLOWER MOTOR SPEED CONTROLS 1~ IN; 1 or 3~OUT LOWER BLOWER MOTOR SPEED CONTROL AND POTENTIOMETER BRNS3 B1 B2 B3 S1 S2 S3 DIR RED S1 OUTPUT 44 + GEARMOTOR REVERSING SWITCH GEARMOTOR POWER SUPPLY GRN BLACK YELLOW T1 YELLOW T2 BLACK YELLOW T3 3~ CCW LOWER BLOWER MOTOR 37 1 2 GEARMOTOR AND SPEED POT ORANGE YELLOW GREEN 3 26 25 PURPLE ORANGE 3 1 2 G2 33 A 11 10 9 8 5 7 4 6 J PURPLE YELLOWor BLUE ORANGE RTDSENSOR 3 1 11 32 28 G2 GREEN / YELLOW STRIPE BLUE GRY BRN RTDSENSOR 25 BLUE UPPER TEMPERATURE CONTROL YELLOWor BLUE G GRN BLUE BROWN LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER 3~ CCW UPPER BLOWER MOTOR BLACK BLACK ELEMENT CONTACTOR UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER T3 41 BLACK ( 2 ) 39 46 RED --+ ++ 43 T2 YELLOW 35 J 30 31 C O I L SSR1 C O I L SSR 2 C O I L SSR 3 GR AY BROWN GRN / YLW C1 YELLOW BLACK WHITE 19 20 BROWN INPUT RED T1 BLUE 15 K OHM RESISTOR YELLOW 21 22 E2 E1 BLKS2 BLACK BLACK 27 G3 A 29 10 BROWN BLKS2 BLACK WHITE J BLUE BRNS3 BLACK 24 BLACK UPPER BLOWER MOTOR SPEED CONTROL AND POTENTIOMETER 17 LEFT TOP ELEMENTS SSR 2 R 19 BLUE J WHITE C1 LEFT A 50 G4 14 GA WHITE 1500 WATTS EACH S3 BROWN M RIGHT 14 GA WHITE G 14 GA WHITE I 14 GA BROWN SSR 3 F BOTTOM ELEMENTS GRAY COOL-DOWN THERMOSTATS. CLOSE ON TEMPERATURE RISE. 10 GA. BROWN 40 15 K OHM RESISTOR 15 10 GA. BLACK E 20 13 BLUE A FAN C N.O. RELAY WHITE VACUUM SWITCHES. CLOSE ON BLOWER VACUUM 48 MAIN SWITCH COOLING FAN IN CONTROL BOX BROWN BROWN 18 11 WHITE 19 38 BROWN BROWN 16 9 G2 18 GA. GREEN / YELLOW STRIPE 10 L1 GREEN MAIN SWITCH 12 FUSE 1 5 AMPS J 9 2 8 5 7 4 6 J GRAY 36 34 LOWER TEMPERATURE CONTROL BROWN COOLING FAN IN CONTROL BOX DOOR U4160Q 26 VHVA1620E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 1 Phase 23 UPPER BLOWER MOTOR SPEED CONTROL WHITE 18 GA. 24 BLACK 18 GA. A1BLACK 18 GA. A2BLACK 18 GA. A3 BLACK 18 GA. E 1 S1 S2 S3 18 GA. E2 TO TERM. BLOCK 3 18 GA. 1~ INPUT 3~ OUTPUT DIR J S3 Q BL U E REVERSING SWITCH OR AN G E P UR P LE Y EL L OW OR A NG E LOWER or B LU E CONVEYOR GEARMOTOR GREEN 22 GA. 50 18 GA. BROWN YELLOW 22 GA. CONVEYOR SPEED POT ORANGE 22 GA. ITEMS LOCATED IN ANGLED CONTROL BOX GREEN FROM POWER WHITE SUPPLY BLACK G L2 L1 G G1 G2 BROWN JUMPER 9 34 18 GA. BLUE 29 BLACK 38 TERMINAL BLOCK #1 6 4 F1 5 AMP 7 5 TO REMOTE POT TO REMOTE POT 25 26 30 18 GA. BROWN F2 5 AMP 18 GA. BLUE TO TERMINAL BLOCK #4 4 5 6 7 2 1 3 4 5 G 9 10 11 6 7 L2 L2 WHITE L2 18 GA. L2 A(L1 ) ITEMS LOCATED IN CONTROL BOX ENCLOSURE 5 4 BROWN L1 10 GA. BLACK L1 10 GA. E A UPPER BLOWER MOTOR T1 YEL A1 T2 YEL A2 T3 YEL A3 BLK TO LOWER BLOWER MOTOR SPEED CONTROL 1 3 2 UPPER TEMP CONTROL LOWER TEMP CONTROL 8 8 9 10 11 LOWER BLOWER MOTOR J J 26 B R O W N 25 28 BLUE 27 36 34 18 GA. GRAY G2 GREEN / YELLOW - GROUND CONTROL BOX COOLING FAN G 29 32 18 GA. GREEN / YELLOW - GROUND R L2 L1 PROBE I TO UPPER BLOWER MOTOR SPEED CONTROL 18 GA. BROWN WHITE GROUND SCREW EN / GRE LOW L YE POWER DISTRIBUTION BLOCK SSR 3 G4 TERMINAL BLOCK #2 E BLUE JUMPER J GREEN / YELLOW GROUND G GREEN (GROUND) F SSR 2 BLUE GRAY GREEN (GROUND) D 30 8 TEMPERATURE CONTROL POTS TO TERMINAL BLOCK #4 J K D SSR 1 31 35 18GA. 14 GA. HI-TEMP B E J N M RED 22 GA. 22 GA. 18GA. 33 GRAY BLUE PU R PL E Y EL LO W o r SPLICES SPLICES YELLOW UPPER + WHT RED BLACK A 23 BLACK 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP C A K WHITE BLK F 14 GA. HI-TEMP PUR 1 C H WHITE ~ 2 COOLING FAN 37 P 20 3 ( AIR PULLED INTO CONTROL BOX ) + GEARMOTOR POWER SUPPLY 18 K 24 BLACK B L UE BLACK L1 18 GA. 18 GA. BROWN 17 BR OWN BLACK 22 GA. 43 BLUE BROWN K G 14 GA. HI-TEMP F I BLACK BLACK LOWER ELEMENTS G J REAR EXHAUST FANS ( AIR PUSHED OUT OF OVEN ) COOL-DOWN THERMOSTAT RED 22 GA. WHITE 18 GA. BROWN 44 24VDC OUTPUT RED ---+++ H 40 38 9 17 41 39 WHITE F2 18 GA. COOL-DOWN RELAY 8 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN BLACK 22 GA. ( 2 PLCS ) UPPER ELEMENTS 14 GA. HIGH TEMP WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. N.O. S1 BLUE 18 GA. C VACUUM SWITCHES 16 18 GA. BROWN 18 GA BLU 15 S2 TO 46 18 GA. BLUE 48 14 TO BROWN 14 GA. WHITE 14 GA. WHITE 14 GA. WHITE 14 GA. 18 GA. BLUE 18 GA. BROWN 18 GA. BROWN 18 GA. BROWN 13 TO TERMINAL BLOCK #2 35 GRAY 12 - 36 A G A. S3 18 TO TEMP CONTROLS BLACK BLACK 27 LOWER G A. 22 TO 18 GA. WHITE 33 GRAY G A. 15K OHM RESISTOR 18 GA. BLACK 32 GRAY DIR BROWN 14 GA. GRAY S3 BLACK F1 18 GA. 8 22 R ED 9 A UPPER S1 S2 D PURPLE 22 BL AC K 11 18 GA. WHITE E1 J B R OWN 10 18 GA. BLACK E2 H 42 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT C TO TERM. BLOCK 3 ELEMENT CONTACTOR ( ON ) ( OFF ) 42 B1BLACK 18 GA. B2BLACK 18 GA. B3BLACK 18 GA. 1~ INPUT 3~ OUTPUT SPEED POT BLUE 18 GA. WHITE 18 GA. 2018 GA. BROWN TERMINAL BLOCK #4 31 19 ORANGE LOWER BLOWER MOTOR SPEED CONTROL 22 N OW BR BLACK 21 YEL S2 S1 ORG TO TO 18 GA. BROWN G A. G A. 18 GA. GRAY 22 22 15K OHM RESISTOR 14 GA. HI-TEMP TO GREEN 10 GA. MAIN SWITCH l O G A. PROBE B LA C K R ED SPEED POT 22 WH ITE BR OW N G3 T1 YEL B1 T2 YEL B2 T3 YEL B3 BLK CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR ITEMS LOCATED IN BLOWER COMPARTMENT TERMINAL BLOCK #3 G4 BLACK ( AIR PULLED INTO CONTROL BOX ) ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4160Q VHVA1620E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase CAUTION: L1 & L2 INPUTS MUST BE 100-125 VOLT POTENTIAL. IF A "HIGH-VOLTAGE LEG" GREATER THAN 125 VOLTS IS PRESENT, IT MUST CONNECT TO L3. 1 L1 L2 L3 G 8 6 14 GA. GND GREEN / YELLOW S TRIPE G2 FUSE 2 5 AMPS 10 12 10 18 GA. G REEN / YELLOW STR IPE FUSE MAIN SWI TCH G1 POWER BLOCK MAIN SWITCH 5 AMPS 4 7 5 9 19 38 11 13 WHITE BROWN COOLING FAN I N CONTROL BOX 15 G4 BLUE A RELAY N J C1 LEFT 40 SSR 1 A BLACK C H Q C1 R RIGHT B 1500 WATTS EACH D 42 K P 19 17 GR EEN 1500 WATTS EACH GA. G 18 C1 BLUE M RIGHT WHITE COOL-DOWN THERMOSTATS. SSR 3 C1 LEFT SSR 2 TOP ELEMENTS BLACK BLACK REAR EXHAUST FANS BLACK BLO WER M OTO R BLACK 23 A1 A2 A3 AND POTENTIOME TER BRNS3 BLKS2 E2 E1 S1 S2 S3 DIR RED S1 15 K OHM YELLOW BLACK YELLOW T1 T2 3~ MOTOR SPE ED BLOWER 1~ SPE ED IN; MOTOR CONTRO LS 1 or 3 ~O UT 21 22 B1 B2 B3 CONTROL A ND POTE NTIOMETER BRNS3 BLKS2 E2 E1 S1 S2 S3 DIR RED S1 15 K OHM RESISTOR 20 YELLOW BLACK YELLOW T2 3~ GRN CCW T3 19 MOTOR BROWN OUTP UT INPUT BLACK 41 39 46 + + + C1 T1 YELLOW BLACK BLACK LOWER BLOWER WHITE 44 RED + REVERSI NG P OWER SUPPLY 37 BLACK ( 2 ) GEARMOTOR GEARMOTOR GEARMOTOR ORANGE 1 2 AND SPEED YELLOW 3 POT SWITCH 43 GREEN BLUE 25 BLUE ELEMENT G GRN CCW T3 MOTOR BLOWER LOWE R RED YELLOW BLACK BLACK UPPER BLOWER RESISTOR 50 BLACK WHITE SPEED CO NTROL 20 BROWN 24 BLACK UPPER WHITE BROWN 26 CONTACTOR 25 BROWN G2 GREEN / YELLOW STRI PE G2 33 UPPER BLUE 31 GRY TEMPERATURE POTENTIOMETER PURPLE YELLOWor BLUE YELLOW ORANGE 2 5 4 A 11 10 9 8 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER PURPLE YELLOWor YELLOW BLUE ORANGE RTDSENSOR 3 1 2 5 4 11 10 9 8 7 6 35 J 30 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROWN BRN RTDSENSOR 3 1 28 27 J G3 29 GRAY A 36 J 34 BROWN ADJUSTMENT BLUE TEMPERATURE GRN / YLW UPPER GRAY CONTROL BLUE VACUUM SWITCHES. CLOSE ON BLOWER V ACUUM 48 CLOSE ON TEMPERATURE RISE. BROWN BROWN 18 F I 14 GA WHITE 14 GA WHITE BOTTOM ELEMENTS GREEN 10 GA. BROWN E 14 GA WHITE N.O. 10 GA. BLACK / YELLOW STRIPE FAN C 14 GA BROWN 16 J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR 28 U4162Q VHVA1620E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 3 Phase 23 UPPER BLOWER MOTOR SPEED CONTROL 24 BLACK 18 GA. A1BLACK 18 GA. A2BLACK 18 GA. A3BLACK 18 GA. TO TERM. BLOCK 3 18 GA. E2 E1 S1 S2 S3 DIR J YELLOW or BLUE CONVEYOR GEARMOTOR 50 YELLOW 22 GA. CONVEYOR SPEED POT ORANGE 22 GA. ITEMS LOCATED IN ANGLED CONTROL BOX FROM GREEN POWER RED WHITE SUPPLY BLACK G L3 L2 L1 G G1 G2 L1 29 6 PROBE 4 F1 7 5 TO REMOTE POT G 30 18 GA. BROWN F2 5 AMP 18 GA. BLUE TO TERMINAL BLOCK #4 4 5 6 7 2 BROWN L3 10 GA. E (L3 ) L2 L2 WHITE L2 18 GA. A(L1 ) ITEMS LOCATED IN CONTROL BOX ENCLOSURE 5 E 4 BLACK L1 10 GA. 4 5 1 3 2 BLUE YELLOW UPPER BLOWER MOTOR T1 YEL A1 T2 YEL A2 T3 YEL A3 BLK TO LOWER BLOWER MOTOR SPEED CONTROL 1 3 UPPER TEMP CONTROL LOWER TEMP CONTROL 8 9 10 11 6 J 7 8 9 10 11 LOWER BLOWER MOTOR J 26 BR OW N 25 28 BLUE 27 34 18 GA. GRAY GREEN / YELLOW - GROUND CONTROL BOX COOLING FAN G 29 32 36 18 GA. GREEN / YELLOW - GROUND G2 L2 L2 38 TERMINAL BLOCK #1 5 AMP R L3 TO REMOTE POT BLACK 25 26 GROUND SCREW EN / G R EL L O W YE POWER DISTRIBUTION BLOCK 18 GA. BLUE PURPLE 22 GA. GREEN 22 GA. 18 GA. BROWN WHITE 8 PURPLE LOWER ( AIR PULLED INTO CONTROL BOX ) BROWN JUMPER 9 TO UPPER BLOWER MOTOR SPEED CONTROL 18 GA. BROWN 34 BLUE JUMPER J G4 TERMINAL BLOCK #2 WHITE RED 22 GA. TEMPERATURE CONTROL POTS ORANGE I BLUE ORANGE ORANGE REVERSING SWITCH SSR 3 30 GREEN / YELLOW GROUND G GREEN (GROUND) E YEL YELLOW or BLUE GREEN (GROUND) D BLACK COOLING FAN PURPLE WHT TO TERMINAL BLOCK #4 J K GRAY F SSR 2 ORG UPPER + RED BLACK J N M SSR 1 31 35 18GA. D PUR 1 BLK 18GA. 33 GRAY B E 18 GA. BROWN 2 A GRAY COOL-DOWN RELAY ~ 3 SPLICES SPLIC ES 14 GA. HI-TEMP C 23 BLACK 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP F 14 GA. HI-TEMP A K WHITE F2 18 GA. 18 GA. BROWN WHITE P 20 C H Q GEARMOTOR POWER SUPPLY WHITE N.O. 18 GA. BROWN 18 WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. C VACUUM SWITCHES 15 14 16 18 GA. BROWN 18 GA BLU 18 GA. BROWN 18 GA. BROWN 18 GA. BROWN 17 37 BLUE 18 GA. 18 GA. BLUE 48 + ---+++ K 24 BLACK BL U E 14 GA. 14 GA. 14 GA. 14 GA. 18 GA. BLUE 46 BLACK 22 GA. 43 BLUE BROWN BROWN WHITE WHITE WHITE TO TERMINAL BLOCK #2 35 GRAY BROWN RED 22 GA. 24VDC OUTPUT RED BROWN 14 GA. A 44 BLACK 22 GA. ( 2 PLCS ) GREEN 10 GA. LOWER - 36 BLACK BLACK 29 GRAY BLACK G 14 GA. HI-TEMP F I J BLACK K LOWER ELEMENTS G 38 41 39 ELEMENT CONTACTOR 33 GRAY 17 18 TO TEMP CONTROLS 32 8 9 R EAR EXH AUS T FANS ( AIR PUSHED OUT OF OVEN ) COOL-DOWN THERMOSTAT 14 GA. HIGH TEMP 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN 18 GA. WHITE 9 GRAY 15K OHM RESISTOR 18 GA. BLACK 14 GA. HI-TEMP J 22 GA. TO S1 D UPPER ELEMENTS 40 H 42 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT H BLACK L1 18 GA. 8 A UPPER RED 42 C TO TERM. BLOCK 3 E2 E1 S1 S2 S3 DIR BROWN 22 GA. TO S3 BLUE 18 GA. WHITE 18 GA. B1BLACK 18 GA. B2BLACK 18 GA. B3BLACK 18 GA. BLACK 22 GA. TO S2 11 18 GA. WHITE 31 19 1~ INPUT 3~ OUTPUT SPEED POT 22 N OW BR BLACK F1 18 GA. TERMINAL BLOCK #4 10 18 GA. BLACK 12 WH ITE LOWER BLOWER MOTOR SPEED CONTROL ( ON ) ( OFF ) 13 15K OHM RESISTOR 2018 GA. BROWN MAIN SWITCH l O 22 GA. TO S1 18 GA. 21 BLACK 22 GA. TO S2 PROBE BROWN 22 GA. TO S3 SPEED POT 18 GA. 1~ INPUT 3~ OUTPUT RED WHITE 18 GA. G3 T1 YEL B1 T2 YEL B2 T3 YEL B3 BLK CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR ITEMS LOCATED IN BLOWER COMPARTMENT TERMINAL BLOCK #3 G4 BLACK ( AIR PULLED INTO CONTROL BOX ) A ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4162Q VH1620E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase G1 POWER BLOCK 10 GA. GREEN / YELLOW G S TRIPE G2 ND 18 GA. FUSE MAI N SWITCH 12 10 8 L1 L2 YELLOW S TRIPE FUSE 2 G 5 AMPS 6 14 1 GREEN / 5 AMPS 4 7 5 19 38 11 9 MAIN SWI TCH 13 WHITE BROWN COOLING FAN A SSR 1 BLACK C H Q STRIPE R C1 RIGHT B 42 D K 1500 WATTS EACH P / GR EEN 17 19 GA. C1 LEFT 18 N J 1500 WATTS EACH GREEN C1 BLUE 40 G M RIGHT WHITE COOL-DOWN THERMOSTATS. CLOSE ON TEMPERATURE RISE. BROWN BROWN SSR 3 F 14 GA WHITE I BOTTOM ELEMENTS YELLOW 10 GA. BROWN E 48 G4 10 GA. BLACK RELAY 18 C1 LEFT SSR 2 TOP ELEMENTS BLACK BLACK BROWN VACUUM SWITCHES. A FAN 14 GA WHITE N.O. BLUE 14 GA WHITE C CLOSE ON BLOWER VACUUM 15 BOX 14 GA BROWN 16 IN CONTROL REAR EXHAUST FANS BLACK 20 24 BLACK 23 BLACK WHITE B K C A L RELAY UPPER GREY 4 2 OVERLOAD CONTACTOR BLOWER MOTOR GREY 1~ CAP 1 WHITE BLACK TO POWER 3 1 WHITE 2 4 BLACK BLOCK GRN LOWER BLOWER GREY MOTOR INPUT RED OUTPUT 44 C1 41 39 46 + + + GEARMOTOR WHITE BLACK CCW GREEN GREY 37 RED + REVERSING GEARMOTOR ORANGE 1 2 AND SPEED YELLOW 3 POT SWITCH 43 1 3 CAP BLACK ( 2 ) GEARMOTOR POWER SUPPLY GREY 1~ 19 GREEN BLUE 26 25 BROWN 25 BLUE G2 33 BLUE GRY TEMPERATURE 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER PURPLE YELLOWorBLUE YELLOW ORANGE RTDSENSOR 3 1 2 5 4 30 J 31 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROWN 11 10 9 8 7 6 35 J 28 27 G3 GRAY 29 A 36 J 34 BROWN 2 5 4 A 11 10 9 8 BLUE RTDSENSOR 3 1 GRN / YLW POTENTIOMETER PURPLE YELLOWorBLUE YELLOW ORANGE BLUE ADJUSTMENT GRAY CONTROL TEMPERATURE G2 GREEN / YELLOW STRI PE UPPER UPPER G GREY GREY WHITE 50 BLOCK 21 22 L2 L1 TO TERMINAL BRN BROWN CCW GREY J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR U4161Q 30 VH1620E Wiring Diagram 23 24 208, 220 or 240VAC, 50/60Hz, 1 Phase WHITE 18 GA. 23 BLACK 18 GA. 24 PURPLE YELLOW or BLUE ORANGE CONVEYOR GEARMOTOR GREEN 22 GA. YELLOW 22 GA. 50 18 GA. BROWN POWER DISTRIBUTION BLOCK ITEMS LOCATED IN ANGLED CONTROL BOX GREEN FROM POWER WHITE SUPPLY BLACK G L2 L1 G 14 GA. HI-TEMP WHITE I G2 L2 L1 J SSR 3 34 BLUE JUMPER 18 GA. BLUE 29 6 4 F1 30 7 5 18 GA. BROWN F2 5 AMP 18 GA. BLUE TO TERMINAL BLOCK #4 4 5 2 1 3 WHITE L2 18 GA. L2 L2 A(L1 ) ITEMS LOCATED IN CONTROL BOX ENCLOSURE 5 4 E BROWN L1 10 GA. BLACK L1 10 GA. A UPPER BLOWER MOTOR 6 7 8 9 10 11 6 J 7 8 LOWER BLOWER MOTOR 9 10 11 BROWN 25 28 BLUE 27 29 32 36 G J 26 34 WHITE 18 GA. 3 BLACK 18 GA. 22 TERMINAL BLOCK #2 1 3 G4 21 2 BLUE YELLOW ORANGE PURPLE 4 5 2 GREEN / YELLOW GROUND G 4 UPPER TEMP CONTROL LOWER TEMP CONTROL TO OVERLOAD RELAY 4 2 3 1 CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR 18 GA. GRAY 18 GA. GREEN / YELLOW - GROUND G2 GREEN / YELLOW - GROUND L2 GREEN (GROUND) (GROUND) 4 2 1 YEL 38 TERMINAL BLOCK #1 ORG BLACK G 18 GA. BROWN TO REMOTE POT TO REMOTE POT 25 26 R L1 BLUE BROWN JUMPER 9 31 35 18GA. GRAY E SSR 2 23 18GA. 33 GRAY TO TERMINAL BLOCK #3 WHITE GROUND SCREW G1 F 30 5 AMP EN / G R EL L O W YE CONVEYOR SPEED POT ORANGE 22 GA. 24 BLACK CONTROL BOX COOLING FAN G3 ITEMS LOCATED IN BLOWER COMPARTMENT BLACK ( AIR PULLED INTO CONTROL BOX ) BLUE 18 GA. TEMPERATURE CONTROL POTS LOWER SSR 1 PUR ORANGE E 8 22 GA. D D B 18 GA. BROWN YELLOW or BLUE REVERSING SWITCH A J RED 22 GA. ELEMENT CONTACTOR COOLING FAN PURPLE + WHT BLACK J K 14 GA. HI-TEMP C A K N M F2 18 GA. UPPER WHITE P WHITE 1 BLK RED SPLIC ES 4X BLACK H Q L2 14 GA. 14 GA. 14 GA. 14 GA. 18 GA. BROWN COOL-DOWN RELAY ~ 2 BLUE BROWN WHITE 20 3 VACUUM SWITCHES 16 C N.O. BLACK BLACK 18 GA BLU 18 GA. BROWN 18 GA. BROWN 31 15 14 18 F 14 GA. HI-TEMP BLACK SPLIC ES 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP BL U E BROWN WHITE WHITE WHITE 48 18 GA. BROWN GEARMOTOR POWER SUPPLY 43 K C GRAY 17 18 GA. BLUE + ---+++ G 14 GA. HI-TEMP 18 GA. 46 BROWN 37 WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. TO TERMINAL BLOCK #2 35 GRAY 24VDC OUTPUT RED BROWN 14 GA. A BLACK 22 GA. ( 2 PLCS ) RED 22 GA. - 36 G K AC BL GRAY 44 R EAR EXH AUST FANS ( AIR PUSHED OUT OF OVEN ) LOWER ELEMENTS F I J K COOL-DOWN THERMOSTAT 38 41 39 BLACK 22 GA. 32 33 GRAY 8 9 17 18 TO TEMP CONTROLS H 40 42 D UPPER ELEMENTS 14 GA. HIGH TEMP 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN GREEN 10 GA. GRAY 12 L2 9 A H WHITE 18 GA. L1 L1 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT C PROBE 11 18 GA. WHITE LOWER L2 19 8 10 18 GA. BLACK UPPER BLACK 18 GA. TERMINAL BLOCK #3 ( ON ) ( OFF ) 13 WHITE 18 GA. 22 BLACK 18 GA. OVERLOAD RELAY 42 PROBE 21 WHITE 18 GA. CONTACTOR 31 BLUE 18 GA. TO TERMINAL BLOCK #2 BLOWER MOTORS BLACK F1 18 GA. MAIN SWITCH l O 31 18 GA. BROWN BLACK L1 18 GA. 20 BLACK ( AIR PULLED INTO CONTROL BOX ) ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4161Q VH1620E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase CAUTION: L1 & L2 INPUTS MUST BE 120-125 VOLT POTENTIAL. G1 POWER BLOCK IF A "HIGH-VOLTAGE LEG" GREATER THAN 125 VOLTS 18 1 FUSE MAIN SWITCH 12 10 8 L1 L2 L3 G GA . GR EEN / GA . GR EEN Y ELLO W / Y ELLO W G STR IPE STR IPE G2 FUSE 2 5 AMPS 6 14 10 ND IS PRESENT, IT MUST CONNECT TO L3. 5 AMPS 4 7 5 9 19 38 11 MAIN SWITCH 13 W HITE BROWN COOLING FAN 40 SSR 1 A BLACK H C Q STRIPE R C1 RIGHT B D K 1500 WATTS EACH P 17 Y ELLO W / GR EEN 19 GA. C1 LEFT 18 N J 1500 W ATTS EACH GREEN C1 BLUE G M RIGHT 14 GA W HITE COOL-DOWN THERMOSTATS. CLOSE ON TEMPERATURE RISE. BROWN BROWN SSR 3 F 14 GA WHITE I BOTTOM ELEMENTS WHITE 10 GA. BROWN 42 CLOSE ON BLOWER VACUUM C1 LEFT SSR 2 TOP ELEMENTS BLACK BLACK BROWN VACUUM SWITCHES. RELAY E 48 G4 10 GA. BLACK 14 GA WHITE N.O . BLUE A FAN C 18 15 BOX 14 GA BROWN 16 IN CONTROL REAR EXHAUST FANS BLACK 20 24 BLACK 23 BLACK WHITE B C A L K RELAY UPPER GREY 4 2 OVERLOAD CONTACTOR BLOWER MOTOR GREY 1~ CA P 1 WHITE TO POWER W HITE 2 4 BLACK BLACK 3 1 BLOCK GRN LOWER BLOWER GREY MOTOR INPUT OUTPUT 44 RED C1 BLACK RED + REVERSING POWER SUPPLY WHITE 1 3 CA P CCW GREEN GREY 37 BLACK ( 2 ) GEARMOTOR GEARMOTOR GEARMOTOR ORANGE 1 2 AND SPEED YELLOW 3 POT SWITCH 43 ELEMENT 41 39 46 + + + GREY 1~ 19 GREEN BLUE 26 25 CONTACTOR BROWN 25 BLUE G2 33 BLUE GRY TEMPERATURE 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTI OMETER PURPLE YELLOWor BLUE YELLOW ORANGE RTDSENSOR 3 1 2 5 4 30 J 31 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROW N 11 10 9 8 7 6 35 J 28 27 G3 GRAY 29 A 36 J 34 BROWN 2 5 4 A 11 10 9 8 BLUE RTDSENSOR 3 1 GRN / YLW POTENTIOMETER PURPLE YELLOWor BLUE YELLOW ORANGE BLUE ADJUSTMENT GRAY CONTROL TEMPERATURE G2 GREEN / YELLOW STRIPE UPPER UPPER G GREY GREY WHITE 50 BLOCK 21 22 L2 L1 TO TERMINAL BRN BROWN CCW GREY J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR 32 U4163Q VH1620E Wiring Diagram 208. 220 or 240VAC, 50/60Hz, 3 Phase 23 WHITE 18 GA. 24 BLACK 18 GA. 23 24 ( AIR PULLED INTO CONTROL BOX ) CONVEYOR GEARMOTOR GREEN 22 GA. YELLOW 22 GA. 50 18 GA. BROWN ORANGE 22 GA. POWER DISTRIBUTION BLOCK ITEMS LOCATED IN ANGLED CONTROL BOX FROM GREEN RED POWER WHI TE SUPPLY BLACK G L3 L2 L1 G G2 R L3 L2 L2 L1 A(L1 ) SSR 3 34 BLUE JUMPER 18 GA. BLUE 29 6 4 F1 30 7 5 L2 L2 WHITE L2 18 GA. ITEMS LOCATED IN CONTROL BOX ENCLOSURE 18 GA. BLUE TO TERMINAL BLOCK #4 BROWN L3 10 GA. E (L3 ) L1 18 GA. BROWN F2 5 AMP 5 1 3 E UPPER BLOWER MOTOR 6 7 8 9 10 11 6 7 LOWER BLOWER MOTOR 8 9 10 11 26 BROWN 25 28 BLUE 27 29 32 36 G J J 34 WHITE 18 GA. 3 BLACK 18 GA. 22 TERMINAL BLOCK #2 UPPER TEMP CONTROL LOWER TEMP CONTROL G4 21 2 1 3 GREEN / YELLOW GROUND G 4 BLUE YELLOW ORANGE PURPLE 4 5 2 TO OVERLOAD RELAY 4 2 3 1 CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR 18 GA. GRAY 18 GA. GREEN / YELLOW - GROUND G2 GREEN / YELLOW - GROUND 4 BLACK L1 10 GA. 4 5 2 GREEN (GROUND) 4 2 1 YEL 38 TERMINAL BLOCK #1 ORG BLACK G 18 GA. BROWN TO REMOTE POT TO REMOTE POT 25 26 GROUND SCREW G1 J 31 35 18GA. GRAY WHITE 5 AMP EN / G R EL L O W YE CONVEYOR SPEED POT BLUE BROWN JUMPER 9 23 18GA. 33 GRAY CONTROL BOX COOLING FAN G3 ITEMS LOCATED IN BLOWER COMPARTMENT BLACK PURPLE YELLOW BLUE YELLOWor ORANGE I BLACK TO TERMINAL BLOCK #3 E SSR 2 24 BLACK F 30 8 TEMPERATURE CONTROL POTS LOWER SSR 1 PUR ORANGE E J N M RED 22 GA. 22 GA. D D B 18 GA. BROWN YELLOW or BLUE REVERSING SWITCH A GRAY COOLING FAN PURPLE + WHT BLACK SPLICES 4X J K 14 GA. HI-TEMP C 18 GA. 1 UPPER BLK RED BLACK SPLICES 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP F 14 GA. HI-TEMP A K P WHITE 18 GA. BROWN COOL-DOWN RELAY ~ 2 WHITE WHITE 20 K C H Q L2 F2 18 GA. 16 18 GA. BROWN GEARMOTOR POWER SUPPLY 3 VACUUM SWITCHES 14 C N.O. 18 BLACK BLACK 18 GA BLU 18 GA. BROWN 18 GA. BROWN 33 15 18 GA. BROWN BROWN WHITE 48 12 18 GA. BROWN 17 G 14 GA. HI-TEMP BLUE 43 BLUE BLUE 18 GA. 18 GA. BLUE + ---+++ 37 14 GA. 14 GA. 14 GA. 14 GA. 13 18 GA. BLUE 46 BROWN BROWN WHITE WHITE WHITE TO TERMINAL BLOCK #2 35 GRAY 24VDC OUTPUT RED ELEMENT CONTACTOR A 44 BLACK 22 GA. ( 2 PLCS ) WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. 36 41 39 BROWN 14 GA. GRAY G ACK BL - 33 GRAY LOWER TO TEMP CONTROLS 32 R EA R E X HA U ST F A NS ( AIR PUSHED OUT OF OVEN ) LOWER ELEMENTS F I J K COOL-DOWN THERMOSTAT 38 9 17 18 RED 22 GA. GRAY A UPPER 8 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN 18 GA. WHITE 9 40 H 42 D UPPER ELEMENTS 14 GA. HIGH TEMP 18 GA. BLACK BLACK 22 GA. 11 18 GA. WHITE L2 PROBE 8 10 18 GA. BLACK H 19 WHITE 18 GA. L1 L1 GREEN 10 GA. ( ON ) ( OFF ) L2 COOL-DOWN THERMOSTAT C 14 GA. HI-TEMP TERMINAL BLOCK #3 BLACK 18 GA. WHITE 18 GA. 22 BLACK 18 GA. OVERLOAD RELAY 14 GA. HI-TEMP JUMPER PROBE 21 WHITE 18 GA. CONTACTOR 31 42 TO TERMINAL BLOCK #2 BLOWER MOTORS BLACK F1 18 GA. MAIN SWITCH l O 31 BLUE 18 GA. 18 GA. BROWN BLACK L1 18 GA. 20 BLACK ( AIR PULLED INTO CONTROL BOX ) A ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4163U VHVA1828E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase JUNCTION BLOCK L1 L2 BLACK G WHITE GREEN G1 POWER 10 GA . GRE EN GND / YE LL OW ST RIPE BLOCK 18 FUSE MAIN SWITCH L1 L2 G 6 14 GRE EN / YE LL OW ST RIPE G2 FUSE 2 5 AMPS 8 10 12 1 GA. MAIN SWITCH 5 AMPS 4 7 5 9 19 38 11 13 WHITE BROWN COOLING FAN BOX 30 AMP CLOSE 40 ON TEMP SSR 1 A RISE. BLACK C H2 Q 20A R C1 RIGHT B 42 CLOSE ON BLOWER VACUUM 3000 WATTS EACH D K2 P 20A 19 17 / GA. GREEN C1 18 N 20A LEFT GREEN J2 BLUE C1 DOWN T/STATS. BROWN G M 20A RIGHT 3000 WATTS EACH COOL 48 C1 LEFT SSR 2 TOP ELEMENTS BLACK BLACK REAR EXHAUST FANS BLACK MOTOR BLACK 24 BLACK UPPER BLOWER 23 CON TROL A1 A2 A3 AN D POTENTIOMETER BRNS3 BLKS2 E2 E1 S1 S2 S3 BROWN DIR RED S1 15 K OHM RESISTOR 50 YELLOW BLACK BLACK YELLOW BLACK YELLOW T1 CCW T3 MOTOR BLOWER LOWER BLOWER M OTOR SPEED SPEED 1~ IN; MOTOR C ONTR OLS 1 or 3 ~OUT 21 22 BRNS3 BLKS2 B1 B2 B3 POTENTI OMETER E2 E1 S1 S2 S3 15 K OHM RESISTOR DIR RED S1 20 YELLOW BLACK YELLOW T2 3~ GRN CCW T3 19 MOTOR BROWN OUTPUT INPUT C1 T1 YELLOW BLACK BLACK LOWER BLOWER WHITE 44 BLACK 41 39 46 + + + RED + REVERSING POWER SUPPLY 37 BLACK ( 2 ) GEARMOTOR GEARMOTOR GEARMOTOR ORANGE 1 2 AND SPEED YELLOW 3 POT SWITCH 43 GREEN BLUE 25 BLUE ELEMENT G GRN 3~ T2 UPPER BLOWER CONTROL AND RED BLACK WHITE SPEED WHITE CONTACTOR 25 26 BROWN G2 GREEN / YELLOW STRIPE G2 33 UPPER BLUE 31 GRY TEMPERATURE POTENTIOMETER PURPLE YELLOWor BLUE ORANGE 2 5 4 A 11 10 9 8 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER PURPLE YELLOWor BLUE ORANGE RTDSENSOR 3 1 2 5 4 11 10 9 8 7 6 35 J 30 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROWN BRN RTDSENSOR 3 1 28 27 J G3 29 GRAY A 36 J 34 BROWN ADJUSTMENT BLUE TEMPERATURE BLUE UPPER GRAY CONTROL GRN / YLW VACUUM SWITCHES. SSR 3 - F I2 WHITE BROWN E 14 GA. WHITE BOTTOM ELEMENTS 10 GA. BROWN 18 G4 YEL LOW STRIP E RELAY 14 GA WHITE N.O. 10 GA. BLACK 14 GA WHITE C 15 BLUE 30 AMP A FAN 14 GA BROWN 16 IN CONTROL J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR U4164Q 34 VHVA1828E Wiring Diagram 208. 220 or 240VAC, 50/60Hz, 1 Phase 23 UPPER BLOWER MOTOR SPEED CONTROL A1BLACK 18 GA. A2BLACK 18 GA. A3BLACK 18 GA. TO TERM. BLOCK 3 18 GA. E2 E1 S1 S2 S3 DIR J E2 E1 S1 S2 S3 DIR J YELLOW or BLUE CONVEYOR GEARMOTOR GREEN 22 GA. YELLOW 22 GA. 50 18 GA. BROWN ORANGE 22 GA. CONVEYOR SPEED POT 10 GA. GREEN G 10 GA. WHITE L2 10 GA. BLACK ITEMS LOCATED IN JUNCTION BOX G L2 L1 L1 G1 G2 PROBE GREEN (GROUND) BROWN JUMPER 9 18 GA. BLUE 29 25 26 6 4 F1 30 5 AMP 7 5 18 GA. BROWN F2 5 AMP 18 GA. BLUE TO TERMINAL BLOCK #4 4 5 6 7 2 1 3 4 5 9 10 11 6 7 WHITE L2 18 GA. L2 L2 L2 BROWN L1 10 GA. ITEMS LOCATED IN CONTROL BOX ENCLOSURE 5 4 BLACK L1 10 GA. 30 AMP FUSE 30 AMP FUSE E A 2 BLUE T1 YEL A1 T2 YEL A2 T3 YEL A3 BLK TO LOWER BLOWER MOTOR SPEED CONTROL 1 3 UPPER TEMP CONTROL LOWER TEMP CONTROL 8 8 9 10 11 LOWER BLOWER MOTOR J J 26 BR OW N 25 28 BLUE 27 34 18 GA. GRAY G2 GREEN / YELLOW - GROUND CONTROL BOX COOLING FAN G 29 32 36 18 GA. GREEN / YELLOW - GROUND R TO UPPER BLOWER MOTOR SPEED CONTROL G UPPER BLOWER MOTOR YELLOW TERMINAL BLOCK #1 PURPLE 38 TO REMOTE POT YEL BLACK G4 TERMINAL BLOCK #2 18 GA. BROWN ORANGE TO REMOTE POT GREEN / YELLOW GROUND G GREEN (GROUND) WHITE GROUND SCREW EN / GRE LOW YE L ITEMS LOCATED IN ANGLED CONTROL BOX POWER DISTRIBUTION BLOCK K2 D 34 BLUE JUMPER J BLACK PURPLE LOWER ( AIR PULLED INTO CONTROL BOX ) BLUE 8 TEMPERATURE CONTROL POTS ORANGE I RED 22 GA. 22 GA. SSR 3 30 ORG ORANGE REVERSING SWITCH TO TERMINAL BLOCK #4 J FUSE F SSR 2 31 GRAY E SSR 1 PUR YELLOW or BLUE WHT RED BLACK 20 AMP D B E J N M 18 GA. BROWN COOLING FAN PURPLE + BLK A K WHITE GRAY 1 SPLICES 35 18GA. 14 GA. HI-TEMP C 23 BLACK 18GA. 33 GRAY 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP F 14 GA. HI-TEMP 18 GA. 2 UPPER COOL-DOWN RELAY WHITE P ~ 3 H Q GEARMOTOR POWER SUPPLY 20 C A BLACK L1 18 GA. 18 F2 18 GA. N.O. 18 GA. BROWN 17 K2 24 BLACK SPLIC ES G 14 GA. HI-TEMP J2 F I 20 AMP FUSE LOWER ELEMENTS G BLACK BLACK K COOL-DOWN THERMOSTAT 40 20 AMP R EAR EXH AUS T FANS ( AIR PUSHED OUT OF OVEN ) BL U E WHITE C VACUUM SWITCHES 16 18 GA. BROWN 18 GA BLU 18 GA. BROWN 18 GA. BROWN 15 14 18 GA. BROWN 37 BLACK 22 GA. 43 BLUE BROWN WHITE 18 GA. BLUE 48 18 GA. BROWN + ---+++ BROWN WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. 18 GA. BLUE 46 H RED 22 GA. 24VDC OUTPUT RED BLUE 18 GA. TO TERMINAL BLOCK #2 35 GRAY I2 FUSE 44 BLACK 22 GA. ( 2 PLCS ) 14 GA. 14 GA. 14 GA. 14 GA. A BLACK BLACK 35 LOWER - 36 BROWN WHITE WHITE WHITE GRAY 38 41 39 BROWN 14 GA. 33 GRAY 8 9 17 D UPPER ELEMENTS 14 GA. HIGH TEMP 18 TO TEMP CONTROLS 32 H2 42 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT 20 AMP FUSE 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN 18 GA. WHITE ELEMENT CONTACTOR GRAY 15K OHM RESISTOR 18 GA. BLACK 9 A UPPER 22 GA. TO S1 GREEN 10 GA. 11 18 GA. WHITE 42 C TO TERM. BLOCK 3 BLACK 22 GA. TO S2 RED BLUE 18 GA. WHITE 18 GA. B1BLACK 18 GA. B2BLACK 18 GA. B3BLACK 18 GA. BROWN 22 GA. TO S3 8 31 19 1~ INPUT 3~ OUTPUT SPEED POT 22 N OW BR BLACK F1 18 GA. TERMINAL BLOCK #4 10 18 GA. BLACK 13 WH ITE LOWER BLOWER MOTOR SPEED CONTROL ( ON ) ( OFF ) 12 15K OHM RESISTOR 2018 GA. BROWN MAIN SWITCH l O 22 GA. TO S1 14 GA. HI-TEMP 21 BLACK 22 GA. TO S2 PROBE BROWN 22 GA. TO S3 SPEED POT 18 GA. 1~ INPUT 3~ OUTPUT RED WHITE 18 GA. 24 BLACK 18 GA. G3 T1 YEL B1 T2 YEL B2 T3 YEL B3 BLK CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR ITEMS LOCATED IN BLOWER COMPARTMENT TERMINAL BLOCK #3 G4 BLACK ( AIR PULLED INTO CONTROL BOX ) ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4164Q VHVA1828E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase JUNCTION BLOCK CAUTION: L1 & L2 INPUTS MUST BE 200-250 VOLT POTENTIAL. IF A "HIGH-VOLTAGE LEG" GREATER THAN 250 VOLTS IS PRESENT, IT MUST CONNECT TO L3. L1 L2 BLACK L3 WH I TE G RED GREEN G1 POWER 10 GA . GRE EN GND / YE LL OW ST RIPE BLOCK 18 FUSE MAIN SWITCH L1 L2 L3 G 8 14 G2 MAIN SWITCH 5 AMPS 4 6 / YE LL OW ST RIPE FUSE 2 5 AMPS 10 12 1 GA . GRE EN 7 5 19 38 11 9 13 WHITE BROWN COOLING FAN IN CONTROL BOX 15 G4 BLUE CLOSE 40 ON TEMP SSR 1 A RISE. BLACK Q K P C R C1 RIGHT B 3000 WATTS EACH D 42 19 17 GA . GRE EN H C1 18 N LEFT GREEN J C1 BLUE M RIGHT 3000 WATTS EACH WHITE G DOWN T/STATS. BROWN F I 14 GA WHITE SSR 3 - 14 GA. WHITE BOTTOM ELEMENTS COOL CLOSE ON BLOWER VACUUM / YE LL OW STRIPE 10 GA. BROWN E 48 VACUUM SWITCHES. 10 GA. BLACK RELAY 14 GA WHITE N.O. 14 GA BROWN 18 A FAN C BROWN 16 C1 LEFT SSR 2 TOP ELEMENTS BLACK BLACK REAR EXHAUST FANS BLACK 24 BLACK UPPER BLOWER BLACK 23 BLACK WHITE M OTOR S PEED C ONTR OL A1 A2 A3 AND POTENTI OM ETER BRNS3 BLKS2 E2 E1 S1 S2 S3 RED S1 15 K OHM RESISTOR YELLOW T2 3~ GRN BLOWER MOTOR SPEED SPEED 1 ~ I N; BRNS3 BLKS2 M OTOR CONTROLS 1 or 3~OUT 21 22 B1 B2 B3 E2 E1 S1 S2 S3 15 K OHM RESISTOR DIR RED S1 20 YELLOW BLACK YELLOW 3~ T2 GRN CCW T3 19 MOTOR BROWN OUTPUT INPUT C1 T1 YELLOW BLACK BLACK LOWER BLOWER WHITE 44 BLACK 41 39 46 + + + RED + REVERSING POWER SUPPLY 37 BLACK ( 2 ) GEARMOTOR GEARMOTOR GEARMOTOR ORANGE AND SPEED 1 2 YELLOW 3 POT SWITCH 43 GREEN BLUE 25 BLUE ELEMENT G CCW T3 MOTOR BLOWER LOWER POTENTIOMETER RED BLACK UPPER BLOWER CONTROL AND 50 YELLOW WHITE BROWN DIR T1 YELLOW BLACK BLACK CONTACTOR 25 26 BROWN G2 GREEN / YELLOW STRIPE G2 33 UPPER BLUE 31 GRY TEMPERATURE 2 5 4 A 11 10 9 8 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER PURPLE YELLOW YELLOWorBLUE ORANGE RTDSENSOR 3 1 2 5 4 28 11 10 9 8 7 6 35 J 30 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROWN BRN RTDSENSOR 3 1 27 J G3 29 GRAY A 36 J 34 BROWN POTENTIOMETER PURPLE YELLOW YELLOWorBLUE ORANGE BLUE ADJUSTMENT GRN / YLW TEMPERATURE BLUE UPPER GRAY CONTROL J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR 36 U4166Q VHVA1828E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 3 Phase 23 WHITE 18 GA. UPPER BLOWER MOTOR SPEED CONTROL 24 BLACK 18 GA. A1BLACK 18 GA. A2BLACK 18 GA. A3BLACK 18 GA. TO TERM. BLOCK 3 18 GA. E2 E1 S1 S2 S3 DIR J TO TERM. BLOCK 3 E2 E1 S1 S2 S3 DIR J ORANGE COOLING FAN CONVEYOR GEARMOTOR LOWER ( AIR PULLED INTO CONTROL BOX ) GREEN 22 GA. YELLOW 22 GA. 50 ORANGE 22 GA. CONVEYOR SPEED POT 18 GA. BROWN G L3 L2 L1 ITEMS LOCATED IN JUNCTION BOX 10 GA. GREEN G 10 GA. RED L3 10 GA. WHITE L2 10 GA. BLACK L1 G G1 G2 L2 L2 L1 PROBE 6 4 F1 5 AMP 7 5 30 18 GA. BROWN F2 5 AMP 18 GA. BLUE TO TERMINAL BLOCK #4 4 5 6 7 2 18 GA. BLUE BROWN L3 10 GA. E (L3 ) L2 L2 WHITE L2 18 GA. A(L1 ) ITEMS LOCATED IN CONTROL BOX ENCLOSURE 5 E 4 BLACK L1 10 GA. 4 5 9 10 11 6 7 2 29 G UPPER BLOWER MOTOR BLUE YELLOW ORANGE PURPLE 1 3 TO UPPER BLOWER MOTOR SPEED CONTROL 34 YEL TERMINAL BLOCK #1 G4 TERMINAL BLOCK #2 TO REMOTE POT T1 YEL A1 T2 YEL A2 T3 YEL A3 BLK TO LOWER BLOWER MOTOR SPEED CONTROL 1 3 UPPER TEMP CONTROL LOWER TEMP CONTROL 8 J 8 9 10 11 LOWER BLOWER MOTOR J 26 BR OW N 25 28 BLUE 27 34 18 GA. GRAY GREEN / YELLOW - GROUND CONTROL BOX COOLING FAN G 29 32 36 18 GA. GREEN / YELLOW - GROUND G2 R L3 38 25 26 GROUND SCREW EN / G R EL L O W YE ITEMS LOCATED IN ANGLED CONTROL BOX POWER DISTRIBUTION BLOCK TO REMOTE POT BLACK GREEN / YELLOW GROUND G GREEN (GROUND) 18 GA. BROWN BLACK PURPLE YELLOW or BLUE SSR 3 BLUE JUMPER J BROWN JUMPER 9 8 TEMPERATURE CONTROL POTS GREEN (GROUND) WHITE RED 22 GA. 22 GA. K D E SSR 2 PUR ORANGE WHT REVERSING SWITCH TO TERMINAL BLOCK #4 J GRAY F 30 BLUE 31 35 18GA. D SSR 1 I F2 18 GA. YELLOW or BLUE RED BLACK 18GA. 33 GRAY B E J N M WHITE 1 PURPLE + BLK 2 A K WHITE ~ 3 UPPER COOL-DOWN RELAY WHITE P 20 SPLICES SPLIC ES 14 GA. HI-TEMP C A H Q GEARMOTOR POWER SUPPLY WHITE 18 GA. BROWN N.O. VACUUM SWITCHES 16 C 18 GA. BROWN 18 BLACK BLACK 18 GA BLU 15 14 17 18 GA. BROWN 37 23 BLACK 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP F 14 GA. HI-TEMP 24 BLACK BL U E WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. 18 GA. BLUE 48 18 GA. BROWN + ---+++ K C BLACK G 14 GA. HI-TEMP F J 18 GA. BROWN 46 BLACK 22 GA. 43 BLUE BROWN BLUE 18 GA. 13 18 GA. BLUE I BLACK K LOWER ELEMENTS G BROWN RED 22 GA. 24VDC OUTPUT RED 14 GA. 14 GA. 14 GA. 14 GA. TO TERMINAL BLOCK #2 35 GRAY 44 BLACK 22 GA. ( 2 PLCS ) BROWN WHITE WHITE WHITE A 18 GA. BROWN 18 GA. BROWN 37 LOWER - 36 BROWN 14 GA. GRAY 17 R EAR EXH AUS T FANS ( AIR PUSHED OUT OF OVEN ) COOL-DOWN THERMOSTAT 38 9 41 39 ELEMENT CONTACTOR 33 GRAY 8 18 TO TEMP CONTROLS 32 40 14 GA. HIGH TEMP 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN 18 GA. WHITE GREEN 10 GA. GRAY 15K OHM RESISTOR 18 GA. BLACK 9 A 22 GA. TO S1 BLACK L1 18 GA. 8 11 18 GA. WHITE UPPER RED D UPPER ELEMENTS ORG BROWN 22 GA. TO S3 H 42 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT C PROBE B1BLACK 18 GA. B2BLACK 18 GA. B3BLACK 18 GA. BLACK 22 GA. TO S2 10 18 GA. BLACK 42 19 WHITE 18 GA. 1~ INPUT 3~ OUTPUT SPEED POT 31 BLUE 18 GA. BLACK F1 18 GA. TERMINAL BLOCK #4 22 N OW BR GRAY LOWER BLOWER MOTOR SPEED CONTROL ( ON ) ( OFF ) 12 15K OHM RESISTOR 2018 GA. BROWN MAIN SWITCH l O WH ITE SPEED POT 22 GA. TO S1 18 GA. 21 BLACK 22 GA. TO S2 14 GA. HI-TEMP BROWN 22 GA. TO S3 RED 18 GA. 1~ INPUT 3~ OUTPUT G3 T1 YEL B1 T2 YEL B2 T3 YEL B3 BLK CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR ITEMS LOCATED IN BLOWER COMPARTMENT TERMINAL BLOCK #3 G4 BLACK ( AIR PULLED INTO CONTROL BOX ) A ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4166Q VH1828E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase JUNCTION BLOCK L1 L2 BLACK G WHITE GREEN G1 POWER BLOCK POWER 10 GA . GRE EN G / YE LL OW ST RIPE BLOCK 18 FUSE 12 MAIN SWITCH 8 10 L1 L2 G G2 ND / YE LL OW ST RIPE FUSE 2 5 AMPS 7 5 AMPS 4 6 14 1 GA . GRE EN 5 11 9 19 38 MAIN SWITCH 13 WHITE BROWN COOLING FAN 30 AMP BROWN T/STATS. CLOSE 40 RISE. SSR 1 C BLACK B 42 H2 Q 20A R C1 RIGHT D 3000 WATTS EACH K2 P 20A C1 19 17 LEFT SSR 2 TOP ELEMENTS BLACK BROWN BLACK REAR EXHAUST FANS BLACK 20 24 BLACK 23 BLACK WHITE C K RELAY UPPER GREY 4 2 OVERLOAD CONTACTOR BLOWER MOTOR GREY 1~ CAP CCW L2 L1 TO TERMINAL BLOCK 1 TO POWER GRN GREY WHITE 21 22 BLACK BLACK 3 1 WHITE 2 4 BLOCK LOWER GREY BLOWER MOTOR 41 39 46 + + + C1 BLACK RED + REVERSING POWER SUPPLY 1 3 CAP CCW GREEN GREY 37 BLACK ( 2 ) GEARMOTOR GEARMOTOR GEARMOTOR ORANGE AND SPEED 1 2 YELLOW 3 POT SWITCH 43 ELEMENT OUTPUT INPUT 44 WHITE WHITE RED GREY 1~ 19 GREEN BLUE 26 25 CONTACTOR BROWN 25 BLUE G2 33 BLUE GRY TEMPERATURE 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER PURPLE YELLOWorBLUE YELLOW ORANGE RTDSENSOR 3 1 2 5 4 30 J 31 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROWN 11 10 9 8 7 6 35 J 28 27 G3 GRAY 29 A 36 J 34 BROWN 2 5 4 A 11 10 9 8 BLUE RTDSENSOR 3 1 GRN / YLW POTENTIOMETER PURPLE YELLOWorBLUE YELLOW ORANGE BLUE ADJUSTMENT GRAY CONTROL TEMPERATURE G2 GREEN / YELLOW STRIPE UPPER UPPER G GREY GREY BRN BROWN GA . GRE EN C1 18 N 20A LEFT A ON TEMP C1 GREEN J2 COOL DOWN M RIGHT 3000 WATTS EACH BLUE G 20A WHITE F 14 GA. WHITE I2 14 GA WHITE BROWN - BOTTOM ELEMENTS 10 GA. BROWN SSR 3 B L A 50 / YE LL OW STRIPE 10 GA. BLACK RELAY E CLOSE ON BLOWER VACUUM G4 BLUE 14 GA WHITE N.O. 48 VACUUM SWITCHES. A FAN C 18 15 BOX 30 AMP 14 GA BROWN 16 IN CONTROL J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR U4165Q 38 VH1828E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 1 Phase 23 WHITE 18 GA. 24 BLACK 18 GA. 23 24 ORANGE LOWER CONVEYOR GEARMOTOR GREEN 22 GA. YELLOW 22 GA. 50 ORANGE 22 GA. ITEMS LOCATED IN ANGLED CONTROL BOX G L2 L1 ITEMS LOCATED IN JUNCTION BOX 10 GA. GREEN G POWER DISTRIBUTION BLOCK G L2 L1 L1 14 GA. HI-TEMP E J SSR 1 WHITE BLUE G2 L1 J BROWN JUMPER 9 34 BLUE JUMPER 18 GA. BLUE 29 6 4 F1 30 7 5 WHITE L2 18 GA. L2 L2 L2 BROWN L1 10 GA. ITEMS LOCATED IN CONTROL BOX ENCLOSURE 5 4 BLACK L1 10 GA. 18 GA. BROWN F2 5 AMP 30 AMP FUSE 30 AMP FUSE E A 18 GA. BLUE TO TERMINAL BLOCK #4 4 5 2 1 3 UPPER BLOWER MOTOR 7 8 9 10 11 6 J 7 8 LOWER BLOWER MOTOR 9 10 11 BROWN 25 28 BLUE 27 29 32 36 G J 26 34 WHITE 18 GA. 3 BLACK 18 GA. 22 TERMINAL BLOCK #2 1 3 G4 21 2 UPPER TEMP CONTROL LOWER TEMP CONTROL 6 GREEN / YELLOW GROUND G 4 BLUE YELLOW PURPLE 4 5 2 ORANGE 38 TERMINAL BLOCK #1 GREEN (GROUND) 4 2 1 YEL BLACK G 18 GA. BROWN TO REMOTE POT ORG TO REMOTE POT 25 26 GROUND SCREW G1 SSR 3 30 I 31 35 18GA. GRAY E SSR 2 23 18GA. 33 GRAY TO TERMINAL BLOCK #3 WHITE R 10 GA. WHITE L2 10 GA. BLACK K N M 24 BLACK F D B 5 AMP EN / G R EL L O W YE CONVEYOR SPEED POT 18 GA. BROWN K2 D TO OVERLOAD RELAY 4 2 3 1 CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR 18 GA. GRAY 18 GA. GREEN / YELLOW - GROUND G2 GREEN / YELLOW - GROUND CONTROL BOX COOLING FAN G3 ITEMS LOCATED IN BLOWER COMPARTMENT BLACK PURPLE YELLOW or BLUE COOLING FAN A 8 TEMPERATURE CONTROL POTS ( AIR PULLED INTO CONTROL BOX ) WHITE P RED 22 GA. 22 GA. SPLIC ES 4X J FUSE 14 GA. HI-TEMP C A PUR ORANGE REVERSING SWITCH BLACK SPLIC ES 20 AMP 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP F 14 GA. HI-TEMP 18 GA. BROWN YELLOW or BLUE WHT K2 GRAY PURPLE + G 14 GA. HI-TEMP 18 GA. 1 RED BLACK G R EAR EXH AUST FANS ( AIR PUSHED OUT OF OVEN ) BLACK BLACK L1 10 GA. 2 UPPER COOL-DOWN RELAY ~ BLK LOWER ELEMENTS I J2 F C H Q L2 WHITE 20 3 BROWN F2 18 GA. 18 GA. BROWN 18 GA. BROWN VACUUM SWITCHES 16 C N.O. 18 GEARMOTOR POWER SUPPLY 43 BLUE WHITE 14 18 GA. BROWN BLACK BLACK 18 GA BLU 15 17 20 AMP 20 AMP FUSE BL U E WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. 48 18 GA. BROWN 18 GA. BROWN 18 GA. BROWN 39 12 18 GA. BLUE + ---+++ BLUE 18 GA. 13 18 GA. BLUE 46 37 14 GA. 14 GA. 14 GA. 14 GA. TO TERMINAL BLOCK #2 35 GRAY BROWN ELEMENT CONTACTOR A 24VDC OUTPUT RED BROWN WHITE WHITE WHITE 36 44 BLACK 22 GA. ( 2 PLCS ) BROWN 14 GA. LOWER - I2 FUSE 41 39 RED 22 GA. GRAY 18 38 9 17 K COOL-DOWN THERMOSTAT K AC BL 33 GRAY 8 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN TO TEMP CONTROLS 32 40 H 42 D UPPER ELEMENTS 14 GA. HIGH TEMP 18 GA. WHITE BLACK 22 GA. GRAY H2 20 AMP FUSE L2 18 GA. BLACK 9 A 19 WHITE 18 GA. L1 L1 GREEN 10 GA. 11 18 GA. WHITE C PROBE 8 10 18 GA. BLACK UPPER L2 OVERLOAD RELAY 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT BROWN L1 10 GA. WHITE 18 GA. TERMINAL BLOCK #4 ( ON ) ( OFF ) BLACK 18 GA. 22 BLACK 18 GA. PROBE 21 WHITE 18 GA. CONTACTOR 31 42 TO TERMINAL BLOCK #2 BLOWER MOTORS BLACK F1 18 GA. MAIN SWITCH l O 31 BLUE 18 GA. 18 GA. BROWN BLACK L1 18 GA. 20 BLACK ( AIR PULLED INTO CONTROL BOX ) ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4165Q VH1828E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase JUNCTION BLOCK CAUTION: L1 & L2 INPUTS MUST BE 200-250 VOLT POTENTIAL. L1 IF A "HIGH-VOLTAGE LEG" GREATER THAN 250 VOLTS L2 L3 G IS PRESENT, IT MUST CONNECT TO L3. BLACK WH I TE RED GREEN G1 POWER 10 GA . GRE EN G / YE LL OW ST RIPE BLOCK G2 ND 18 FUSE 12 MAIN SWITCH 10 8 L1 L2 L3 / YE LL OW ST RIPE FUSE 2 G 5 AMPS 7 5 AMPS 4 6 14 1 GA . GRE EN 5 9 19 38 MAIN SWITCH 11 13 WHITE BROWN COOLING FAN BROWN T/STATS. CLOSE 40 SSR 1 A ON TEMP RISE. Q K P C BLACK B 42 R C1 RIGHT D 3000 WATTS EACH C1 19 17 LEFT SSR 2 TOP ELEMENTS BLACK BROWN BLACK REAR EXHAUST FANS BLACK 20 24 BLACK 23 BLACK WHITE C K RELAY UPPER GREY 4 2 OVERLOAD CONTACTOR BLOWER MOTOR GREY 1~ CAP CCW TO TERMINAL BLOCK 1 TO POWER BLOCK L2 L1 21 22 WHITE BLACK GRN GREY 3 1 WHITE 2 4 BLACK GREY LOWER BLOWER MOTOR 44 C1 41 39 46 + + + BLACK RED + REVERSING POWER SUPPLY CCW GREEN GREY 37 GEARMOTOR ORANGE AND SPEED 1 2 YELLOW 3 POT SWITCH 43 1 3 CAP BLACK ( 2 ) GEARMOTOR GEARMOTOR WHITE WHITE OUTPUT INPUT RED GREY 1~ 19 GREEN BLUE 26 25 BROWN 25 BLUE G2 33 BLUE GRY TEMPERATURE 7 6 32 J LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER PURPLE YELLOW YELLOWorBLUE ORANGE RTDSENSOR 3 1 2 5 4 J 30 31 C O I L SSR1 C O I L SSR2 C O I L SSR3 AY GR BROWN 11 10 9 8 7 6 35 J 28 27 G3 GRAY 29 A 36 J 34 BROWN 2 5 4 A 11 10 9 8 BLUE RTDSENSOR 3 1 GRN / YLW POTENTIOMETER PURPLE YELLOW YELLOWorBLUE ORANGE BLUE ADJUSTMENT GRAY CONTROL TEMPERATURE G2 GREEN / YELLOW STRIPE UPPER UPPER G GREY GREY BRN BROWN GA . GRE EN H C1 18 N GREEN J LEFT BLUE G C1 WHITE SSR 3 - DOWN M RIGHT 3000 WATTS EACH 14 GA WHITE BROWN F 14 GA. WHITE I BOTTOM ELEMENTS COOL CLOSE ON BLOWER VACUUM VACUUM SWITCHES. 10 GA. BROWN B L A 50 / YE LL OW STRIPE RELAY E 48 G4 10 GA. BLACK 14 GA WHITE N.O. BLUE A FAN C 18 15 BOX 14 GA BROWN 16 IN CONTROL J BROWN LOWER COOLING TEMPERATURE FAN IN CONTROL CONTROL BOX DOOR 40 U4167Q VH1828E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 3 Phase 23 WHITE 18 GA. 24 BLACK 18 GA. 23 24 CONVEYOR GEARMOTOR LOWER GREEN 22 GA. YELLOW 22 GA. 50 ORANGE 22 GA. ITEMS LOCATED IN ANGLED CONTROL BOX G L3 L2 L1 ITEMS LOCATED IN JUNCTION BOX POWER DISTRIBUTION BLOCK 10 GA. GREEN G 10 GA. RED L3 10 GA. WHITE L2 10 GA. BLACK L1 G SSR 1 G1 G2 WHITE BLUE 18 GA. BLUE 29 6 30 L2 7 5 L2 WHITE L2 18 GA. L1 ITEMS LOCATED IN CONTROL BOX ENCLOSURE F2 5 AMP 18 GA. BLUE TO TERMINAL BLOCK #4 BROWN L3 10 GA. E (L3 ) L2 18 GA. BROWN 5 2 7 8 9 10 11 6 J 7 8 LOWER BLOWER MOTOR 9 10 11 BROW N 25 28 BLUE 27 29 32 36 G J 26 34 WHITE 18 GA. 3 BLACK 18 GA. 22 TERMINAL BLOCK #2 1 3 G4 21 2 UPPER TEMP CONTROL LOWER TEMP CONTROL 6 GREEN / YELLOW GROUND G 4 BLUE YELLOW PURPLE 4 5 1 3 TO OVERLOAD RELAY 4 2 3 1 CLOCKWISE ROTATION WHEN LOOKING AT BACK OF MOTOR 18 GA. GRAY 18 GA. GREEN / YELLOW - GROUND G2 E 4 BLACK L1 10 GA. 2 5 ORANGE PUR 4 F1 4 UPPER BLOWER MOTOR 1 YEL 38 TERMINAL BLOCK #1 GREEN (GROUND) 4 2 TO REMOTE POT ORG TO REMOTE POT BLACK G 18 GA. BROWN 34 BLUE JUMPER J BROWN JUMPER 9 25 26 R A(L1 ) SSR 3 30 I 31 35 18GA. GRAY E SSR 2 23 18GA. 33 GRAY TO TERMINAL BLOCK #3 WHITE GROUND SCREW L3 L2 L1 E J N M 24 BLACK F D B 5 AMP EN / G R EL L O W YE CONVEYOR SPEED POT 18 GA. BROWN K D GREEN / YELLOW - GROUND CONTROL BOX COOLING FAN G3 ITEMS LOCATED IN BLOWER COMPARTMENT BLACK ORANGE COOLING FAN ( AIR PULLED INTO CONTROL BOX ) A K 18 GA. BROWN PURPLE YELLOW or BLUE J 14 GA. HI-TEMP C A 8 TEMPERATURE CONTROL POTS SPLIC ES 4X BLACK GRAY ORANGE WHITE P RED 22 GA. 22 GA. F 14 GA. HI-TEMP 18 GA. YELLOW or BLUE WHT REVERSING SWITCH RED BLACK K H Q L2 F2 18 GA. PURPLE + BLK 1 UPPER COOL-DOWN RELAY ~ 2 BROWN WHITE 20 3 VACUUM SWITCHES 16 18 GA. BROWN GEARMOTOR POWER SUPPLY 43 BLUE WHITE 14 C N.O. BLACK BLACK 18 GA BLU 15 17 18 GA. BROWN 18 18 GA. BROWN 18 GA. BROWN 18 GA. BROWN 18 GA. BROWN 41 12 18 GA. BLUE 48 + ---+++ BLUE 18 GA. 13 18 GA. BLUE 46 C BLACK SPLIC ES 14 GA. HI-TEMP 14 GA. HI-TEMP 14 GA. HI-TEMP BL U E 14 GA. 14 GA. 14 GA. 14 GA. TO TERMINAL BLOCK #2 35 GRAY 37 BROWN WHITE WHITE WHITE A 24VDC OUTPUT RED WHITE L2 14 GA. WHITE L2 14 GA. WHITE L2 14 GA. LOWER 36 BLACK 22 GA. ( 2 PLCS ) BROWN ELEMENT CONTACTOR GRAY - 44 G 14 GA. HI-TEMP K AC BL GRAY 41 39 BROWN 14 GA. 32 33 G J R EAR EXH AUST FANS ( AIR PUSHED OUT OF OVEN ) LOWER ELEMENTS F I K COOL-DOWN THERMOSTAT 38 9 17 18 RED 22 GA. GRAY 8 18 GA. BLACK 18 GA. WHITE 18 GA. BLUE 18 GA. BROWN 18 GA. WHITE TO TEMP CONTROLS 40 42 D UPPER ELEMENTS 14 GA. HIGH TEMP 18 GA. BLACK 9 A UPPER L2 BLACK 22 GA. 11 18 GA. WHITE H PROBE 8 10 18 GA. BLACK 19 WHITE 18 GA. L1 L1 GREEN 10 GA. ( ON ) ( OFF ) L2 OVERLOAD RELAY C 14 GA. HI-TEMP TERMINAL BLOCK #4 BLACK 18 GA. WHITE 18 GA. 22 BLACK 18 GA. 14 GA. HI-TEMP JUMPER COOL-DOWN THERMOSTAT PROBE 21 WHITE 18 GA. CONTACTOR 31 42 TO TERMINAL BLOCK #2 BLOWER MOTORS BLACK F1 18 GA. MAIN SWITCH l O 31 BLUE 18 GA. 18 GA. BROWN BLACK L1 18 GA. 20 BLACK ( AIR PULLED INTO CONTROL BOX ) A ITEMS LOCATED ON MAIN CONTROL BOX DOOR G4 18 GA. GREEN / YELLOW ( MOTOR GROUND ) U4167Q 20. PARTS LISTS & EXPLODED VIEWS Figure B Conveyor Assembly Figure A External Covers 2 6 7 9 7 5 4 6 5 8 3 4 9 10 3 42 10 2 12 1 11 1 2 11 Item 1 2 3 4 5 6 7 8 9 10 11 Part Number 1620E 1828E Description S3255A B6539K Q1499A B6535U Q4043A B6536U Q4044A B6538U B6537U B6584T S3256A Hanger Pin (For Item #2) Adjustable Baffle Lock Nut (For Item #1) Outer Lower Cover, Right 1/4 Turn Fastener Outer Upper Cover, Right Retaining Ring (For Item #5) Outer Upper Cover, Left Outer Lower Cover, Left Hinged Door Assy Door Handle S3255A B6051K Q1499A B6037U Q4043A B6038U Q4044A B6038U B6037U B6260T S3256A Quan 4 2 4 1 8 1 8 1 1 1 2 Item Part Number 1620E 1828E Description Quan 1 B6546T B7227T Complete conveyor assy with wire belt 1 2 S3268U S3266U Idler shaft assy (complete w/sprockets) 2 3 B6068U B6068U Bearing clip assy 6 4 S3254A S3254A Plastic bearing 6 5 Q4045A Q4045A Drive pin in drive shaft 1 6 S3269U S3267U Drive shaft assy (complete w/sprockets) 1 7 S3252A S3253A Complete wire belt assembly 1 8 S3258A S3259A Wire belt master link (not shown) 2 9 S3270A S3270A Drive sprocket (metal) 6 10 S3250A S3250A Idler sprocket (plastic) 12 11 B6569U B6087U Discharge Extension Tray 1 12 B6571U B6089U Infeed Extension Tray 1 Figure D Blower Assembly Figure C Blower Motor Cover Assembly 1 3 4 3 5 4 5 2 2 1 Item 1 2 3 4 5 Part Number 1620E 1828E B6565U M1504A M1532A P6470A S1392A B6219U M1504A M1532A P6470A S1392A Description Quan Rear Blower Motor Cover Fan Guard Large Axial Fan 220/240V Fan Cord Assy Rubber Bumper (Rear Exterior) 1 4 4 2 4 Item 43 1 2 3 4 5 6 Part Number 1620E 1828E M1541U M1542U M1515A S3260A M1548A M1511A M1537U M1511U M1510A S3260A M1548A M1511A 6 All Components Shown Quan Description Complete Blower Assy, VH, 1 or 3 Ph Complete Blower Assy, VHVA, 1 or 3 Ph Main Blower Wheel Minor Wheel (Heat Slinger) Blower Motor, 1/4 HP, VH, 1 or 3 Ph Blower Motor, 1/4 HP, VHVA, 1 or 3 Ph 1 1 1 2 2 2 Figure F Plenum Finger Assembly Figure E VH Series Ovens Only 3 1 2 1 4 3 2 Item Part Number 1620E 1828E 1 2 3 4 B6086U P1150A M1378A M1379A B6086U P1150A M1378A M1379A 4 Description Mount Bracket Assy DN Rail Contactor Overload Relay Quan Item 1 1 1 1 1 2 3 4 Part Number 1620E 1828E Description B6529T B6531K B6532K B6530U Complete Plenum "Finger" Assy (Items 2, 3 & 4) Outer "Perforated" Panel Inner Perforated Panel Main Body Panel B6221T B6225K B6226K B6222U Quan 4 4 4 4 Figure G Main Power Control Box Not Shown Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Part Number 1620E 1828E B6562T B6562U B6564T B6564U S3262A B6074U S3263A M1501A P1175A M1538A P1064A P1190A M1307A B6079K P1170A M1517A M1525A M1500A M1235A M1521A M1524A M1378A U1061A B6073U M1529A M1513A N/A N/A N/A N/A P6486A P6469A P1172A B6071T B6071U B6072T B6072U S3262A B6074U S3263A M1501A P1175A M1538A P1064A P1190A M1307A B6079K P1170A M1517A M1525A M1500A M1235A M1521A M1524A M1378A U1060A B6073U M1529A M1513A P1008A P1007A B6250K B6251K N/A N/A N/A Description Quan Main Control Box Assy (Complete w/items 5-15 & 22) Main Control Box Only (Bare) Hinged Door Assy (Complete w/items 16-21 & 23) Hinged Door Only (Bare) Gearmotor Coupling Gearmotor Adjustment Plate Gearmotor Adapter Plate Gearmotor - Belt Conveyor Drive Power Distribution Terminal Block (1620 Uses 1, 1828 Uses 2) Gearmotor Power Supply Fuseholder w/Cap Fuse SC-5 Amp Gearmotor Reversing Switch Reversing Switch Mounting Bracket Terminal Block Solid State Relay Thermal Pad Temperature Control Cooling Fan Heat Sink Fan Guard Contactor Rating Plate Air Speed Control Mount Bracket Assy (VHVA Only) Air Blower Speed Control (208V Only) (VHVA Only) Air Blower Speed Control (240V Only) (VHVA Only) Fuse SC-20 Amp (1828 Single-phase Only) Fuseholder w/Cap (1828 Single-phase Only) Junction Box (1828 Only) Cover, Junction Box (1828 Only) Power Cord Assembly, Single-phase (Not Shown) Power Cord Assembly, Three-phase (Not Shown) Strain Relief 1 1 1 1 1 1 1 1 1 or 2 1 2 2 1 1 1 3 3 2 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 44 Figure H Electric Control Box 2 3 5 6 19 9 8 7 4 18 13 14 15 16 17 1 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Part Number 208 Volt 240 Volt M1352A P1171A S1205A M1519A M1531A M1505A M1533A P1170A M1524A M1235A B6237T B6237U B6236U U1370A U1366A U1369A U1365A N/A N/A M1352A P1171A S1205A M1519A M1531A M1505A M1535A P1170A M1524A M1235A B6237T B6237U B6236U U1370A U1366A U1369A U1365A P1008A P1007A 12 10 Description 11 Quan VH VHVA Main Switch Indicator Light (On for Heat Demand) Knob Potentiometer (Conveyor Belt Speed Adjust) Potentiometer (Air Blower Speed Adjust) Potentiometer (Air Temperature Control) Relay Terminal Block Fan Guard Cooling Fan Electric Control Box (w/items 8, 9, 11, & 12) Electric Control Box Only Hinged Door Assy Door Label (VH1620E) Door Label (VH1828E) Door Label (VHVA1620E) Door Label (VHVA1828E) Fuse SC-20A (1828 Single-phase Only) Fuseholder w/Cap (1828 Single-phase Only) 45 1 2 3 1 0 2 1 1 2 1 1 1 1 1 1 0 0 2 2 1 2 5 1 2 2 1 1 2 1 1 1 1 0 0 1 1 2 2 Figure I Cool-Down Thermostat, Elements, Switch & Probe 4 3 2 3 4 2 1 Item 208V Part Number Model 1620E 220V 230V 240V 208V Model 1828E 220V 230V Description Quan 240V 1 M1518A M1518A M1518A M1518A M1518A M1518A M1518A M1518A Temperature Sensor Probe 2 L1181A L1189A L1207A L1183A L1185A L1191A L1209A L1187A Heating Element, Left Hand 2 3 L1182A L1190A L1208A L1184A L1186A L1192A L1210A L1188A Heating Element, Right Hand 2 4 M1534A M1534A M1534A M1534A M1534A M1534A M1534A M1534A Cool-Down Thermostat 2 46 2 21. BAKERS PRIDE LIMITED WARRANTY 30 Pine Street New Rochelle, New York 10801 914 / 576 - 0200 US & Canada: 1 - 800 - 431 - 2745 fax 914 / 576 - 0605 WHAT IS COVERED This warranty covers defects in material and workmanship under normal use, and applies only to the original purchaser providing that: The equipment has not been accidentally or intentionally damaged, altered or misused; ! The equipment is properly installed, adjusted, operated and maintained in accordance with National and local ! codes, and in accordance with the installation instruction provided with the product; The serial number rating plate affixed to the equipment has not been defaced or removed. ! WHO IS COVERED This warranty is extended to the original purchaser and applies only to equipment purchased for use in the U.S.A. COVERAGE PERIOD Cyclone Convection Ovens: BCO Models: One (1) Year limited parts and labor; GDCO Models: Two (2) Year limited parts and labor; CO11 Models: Two (2) Year limited parts and labor; (5) Year limited door warranty. All Other Products: One (1) Year limited parts and labor. Warranty period begins the date of dealer invoice to customer or ninety (90) days after shipment date from BAKERS PRIDE whichever comes first. WARRANTY COVERAGE This warranty covers on-site labor, parts and reasonable travel time and travel expenses of the authorized service representative up to (100) miles, round trip, and (2) hours travel time. The purchaser, however, shall be responsible for all expenses related to travel, including time, mileage and shipping expenses on smaller counter models that may be carried into a Factory Authorized Service Center, including the following models: PX-14, PX-16, P18, P22S, P24S, PD-4, PDC, WS Series and BK-18. EXCEPTIONS All removable parts in BAKERS PRIDE Char-broilers, including but not limited to: Burners, Grates, Radiants, Stones and Valves, are covered for a period of SIX MONTHS. All Ceramic Baking Decks are covered for a period of THREE MONTHS. The installation of these replacement decks is the responsibility of the purchaser. The extended Cyclone door warranty years 3 through 5 is a parts only warranty and does not include labor, travel, milage or any other charges. EXCLUSIONS Failures caused by erratic voltages or gas supplies, Unauthorized repair by anyone other than a BAKERS PRIDE Factory Authorized Service Center, Damage in shipment, Alteration, misuse or improper installation, Thermostats and safety valves with broken capillary tubes, Accessories spatulas, forks, steak turners, grate lifters, oven brushes, scrapers, peels, etc., Freight other than normal UPS charges, Ordinary wear and tear. Negligence or acts of God, Thermostat calibrations after (30) days from equipment installation date, Air and Gas adjustments, Light bulbs, Glass doors and door adjustments, Fuses, Char-broiler work decks and cutting boards, Tightening of conveyor chains, Adjustments to burner flames and cleaning of pilot burners, Tightening of screws or fasteners, INSTALLATION Leveling and installation of decks, as well as proper installation and check out of all new equipment per appropriate installation and use materials is the responsibility of the dealer or installer, not the manufacturer. REPLACEMENT PARTS BAKERS PRIDE genuine Factory OEM parts receive a (90) day materials warranty effective from the date of installation by a BAKERS PRIDE Factory Authorized Service Center. This Warranty is in lieu of all other warranties, expressed or implied, and all other obligations or liabilities on the manufacturers part. BAKERS PRIDE shall in no event be liable for any special, indirect or consequential damages, or in any event for damages in excess of the purchase price of the unit. The repair or replacement of proven defective parts shall constitute a fulfillment of all obligations under the terms of this warranty. 4/021/03 47 F. BAKERS PRIDE BAKERS PRIDE OVEN CO., INC. (914) 576-0200 Phone (914) 576-0605 Fax 30 Pine Street New Rochelle, NY 10801 48 (800) 431-2745 US & Canada www.bakerspride.com Web Address ">

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