Bakers Pride Oven VHVA1620E, VHVA1828E User Manual

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.
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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.
30 Pine Street
New Rochelle, NY 10801 (914)576-0200 Phone (800)431-2745 US& Canada (914)576-0605 Fax www.bakerspride.com WebAddress
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Bakers Pride takes pride in thedesign 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 wordsare defined as follows:
DANGER:
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WARNING:
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seriousinjuryor death.
CAUTION:
moderateinjuryorproductor property damage.
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NOTICE:
eventhoughnot dangerous.
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Thissymbolwarnsof imminent hazard which will result inseriousinjuryor death.
This symbol refers to a potential hazard or unsafe practice, which could result in
Thissymbol refers to a potential hazard or unsafepractice,which may result in minor or
This symbol refers to informationthat needs special attentionormust be fullyunderstood
GENERAL INFORMATION
THIS MANUAL SHOULD BE RETAINED FOR FUTURE REFERENCE
CAUTION:
positioned so the general public can use the equipment make sure that cautions, warnings, and
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operating instructions are clearly posted near each unit so that anyone using the equipment will useit correctly and not injure themselvesorharmtheequipment.
WARNING:
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andfrequencylistedon the data plate. Connect only to 1or 3 phase as listedonthe data plate.
WARNING:
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nationalelectricalcodeand/orotherlocal electrical codes.
These models are designed, built, and sold for commercial use. If these models are
Checkthe data plate on thisunit before installation.Connect the unit onlyto the voltage
Electrical and grounding connections must comply with the applicable portions of the
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WARNING:
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powerplug,indicatingthatyou are working on thecircuit.
WARNING:
strongly recommend having a competent professional install the equipment.Alicensed electrician should make the electrical connections and connect power to the unit. Local codes should always
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be used when connecting these units to electrical power. In the absence of local codes, use the latestversionof the National Electrical Code.
WARNING:
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
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circuit, protected by a fuse or circuit breaker of proper size and rating. Canadian installation must complywiththe CanadianElectricalCode, CSAC22.2,asapplicable
Disconnect device from electrical power supply and place a Tag Out-Lockout on the
Installper the spacing requirements listed in the installationsection of this manual. We
This device should be safely and adequately grounded in accordance with local
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WARNING:
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maintenanceorrepair, contact Bakers Pride.
Afactoryauthorizedagentshouldhandle all maintenance and repair. Before doing any
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WARNING:
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surface.
WARNING:
installationandfromthereto an independent earth connection.
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NOTICE:
the absence of local codes, with the national electrical code ANSI/NFPA70- latest edition.
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Canadian installation must comply with CSA-STANDARD C.22.2 Number 0 M1982 General Requirements-CanadianElectrical Code PartII,109-M1981-CommercialCookingAppliances.
WARNING: -
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equipment.
NOTICE:
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NOTICE:
Fire ProtectionAssociation, Inc. states in its NFPA96 latest edition that local codes are Authority Having Jurisdiction when it comes to requirements for installation of equipment. Therefore,
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installationshouldcomplywithalllocalcodes.
Never clean any electrical unit by immersing it in water. Turn off before cleaning
An earthing cable must connect the appliance to all other units in the complete
The unit when installed, must be electrically groundedand comply with local codes, or in
SHOCK HAZARD
Thisproductis intended for commercial use only.Notforhouseholduse.
Local codes regarding installation vary greatly from one area to another. The National
De-energize all power to equipment before cleaning the
IMPORTANT FOR FUTURE REFERENCE
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Notes:
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 Date Purchased
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TABLE OF CONTENTS
SECTION ITEM PAGE
1 Receiving 5 2 Location & Minimum Clearances 5 3 Installation 5 4 Stacking 6 5 Electrical Connections 6 6 System Check 8 7 Initial Start-Up 10
8 Shutdown 11 9 Special Features 11 10 Cleaning 12 11 Operator Maintenance 13 12 Rating Plate 14 13 Conveyor Removal 15 14 Conveyor Installation 15 15 Conveyor Belt Speed Calibration 16 16 Troubleshooting Guide 18 17 Temperature Control Conversion Chart 23 18 Solid State Relay Identification 24 19 Electrical Schematics & Wiring Diagrams 26
A.
VHVA1620E Schematic, 208, 220 or 240VAC, 1 Phase 26
B.
VHVA 1620E Wiring Diagram, 208, 220 or 240VAC, 1 Phase 27
C. 3
VHVA1620E Schematic, 208, 220 or 240VAC, Phase 28 D. VHVA 1620E Wiring Diagram, 208, 220 or 240VAC, 3 Phase 29 E. VH 1620E Schematic, 208, 220 or 240VAC, 1 Phase 30 F. VH 1620E Wiring Diagram, 208, 220 or 240VAC, 1 Phase 31 G. VH 1620E Schematic, 208, 220 or 240VAC, 3 Phase 32 H. VH 1620E Wiring Diagram, 208, 220 or 240VAC, 3 Phase 33 I. VHVA 1828E Schematic, 208, 220, or 240, 1 Phase 34 J. VHVA 1828E Wiring Diagram, 208, 220, or 240, 1 Phase 35 K. VHVA 1828E Schematic, 208, 220, or 240, 3 Phase 36 L. VHVA 1828E Wiring Diagram, 208, 220, or 240, 3 Phase 37 M. VH 1828E Schematic, 208, 220, or 240, 1 Phase 38 N. VH 1828E Wiring Diagram, 208, 220, or 240, 1 Phase 39 O. VH 1828E Schematic, 208, 220, or 240, 3 Phase 40 P. VH 1828E Wiring Diagram, 208, 220, or 240, 3 Phase 41
20 Parts Lists & Exploded Views 42
A. External Covers 42 B. Conveyor Assembly 42 C. Blower Motor Cover Assembly 43 D. Blower Assembly 43 E. VH Series Only 43 F. Plenum “Finger” Assembly 43 G. Main Power Control Box 44 H. Electric Control Box 45 I. Cool Down Thermostat, Elements, Switch & Probe 46
21 Warranty 47
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I. INSTALLATION INSTRUCTIONS
MODELS COVERED TOTAL KW PHASE
VH1620E 6.4 1 or 3 VHVA1620E 6.4 1 or 3 VH1828E 12.4 1 or 3 VHVA1828E 12.4 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 hasbeen 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 toinstallation.
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 ConveyorOven must be installed in awell-ventilated area.
NOTE:
Attached rear rubber bumpers must not be removedand can contact a rear wallif 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 theback of the unit.) S e e rating plate attached to the control box doorpanel.
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 Section1 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 isadjustable to accommodate variationsin 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.
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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
When stacking, remove legs from upper unit.
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 ovenhas its own power disconnect. Make sure ALL main switches are OFF before any cleaningormaintenanceisperformed.
Use Stacking Brackets to secure ovens together.
1. Remove two bottom screws from the top oven rear panel.
2. Remove two top screws from the bottom oven rear panel.
3. Install the right and left stacking brackets as shown in above diagram.
4. Reinstall the four removed screws.
When stacking, align Dimpled Foot of upper unit into matching Dimple of bottom unit.
5. ELECTRICAL CONNECTIONS
General Instructions
a
) Only use copper conductor wires rated at 90°C suitably sized for the electric current drawn. b) Dual Air Model 1828E ovens are constructed for permanent connections - no power cord is supplied. c) Dual Air Model 1620E ovens are supplied with a flexible power cord and plug. d) Make sure the electrical supply corresponds with that specified on the rating plate. e) Only a licensed electrician should make the electrical connections. f) Proper connections are shown on the wiring diagrams as well as the rating plate. g) Wiring diagrams are located in the control box containing the Main Switch (green rocker). h) 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 VH-, VHVA1828E: POWER SUPPLY (EACH) 12.4 KW/Hr
Volts Phase L1 L2 L3 Volts Phase L1 L2 L3
200-208 1 31 31 N/A 200-208 1 60 60 N/A
220 1 29 29 N/A 220 1 56 56 N/A 230 1 28 28 N/A 230 1 54 54 N/A 240 1 27 27 N/A 240 1 52 52 N/A
200-208 3 14 21 19 200-208 3 27 40 38
220 3 13 18 17 220 3 25 38 36 230 3 12 17 16 230 3 24 36 34 240 3 12 18 17 240 3 23 35 33
EACH CONVEYOR OVEN REQUIRES A SEPARATE CONNECTION
CAUTION:
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causenauseaanddizziness. Besure the oven is placedina well-ventilatedarea.
Normalcooking operations may resultin the productionof smoke or fumes and may
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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: VERIFY VOLTAGE OF EACH LEG. IF ANY LEG HAS A
FOR 3 PHASE UNITS ONLY:
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 ( on right side when
under the control box
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 utilizing the knock-out hole
PERMANENT CONNECTION
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 conductorwires (rated 90°C) to the Power DistributionTerminal 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 be mounted to L3 Replace thecover and fasten securely with removedscrews.
ONLY.
MUST
SINGLE-PHASE CONNECTION
G
G4
L3
L2
5 R (BROWN) L2
L2
4
A
FIELD WIRING
L2
L1
SERVICE CONNECTIONS
6-50P
E(BROWN)
FACTORY WIRING
TO INTERNAL CIRCUITS
NEMA SPECS.
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THREE PHASE CONNECTION
FIELD WIRING
G
L3
L2
L1
G4
E(BROWN) R (BROWN)
L2
5
L2 L2
4 A
SERVICE CONNECTIONS
1620E 3 PHASE1620E 1 PHASE
L15-30P
FACTORY WIRING
TO INTERNAL CIRCUITS
6. SYSTEM CHECK
a)
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 flatand parallelto thecountertop surface. If the beltis 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 OCCURIF CONTACTIS MADE TOINCOMING POWER.
2. Re-aligningthe coupling/ driven-shaft pin requiresopening thePower Control Boxdoor.
3. Inserta hex-head nut-drivertool to loosen the (4) screws that fasten the gearmotorto the box sidepanel.
4. Re-align the coupling to the conveyor belt drive shaft pin. If this is done properly, the driven- shaftpin will fit snuggly intothe slot of the gearmotorcoupling.
5. When alignment is correct, re-tighten the (4) screws at the gearmotor before closing the 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 directionof travel needsto bereversed, follow thisprocedure:
NOTE: THE CONVEYOR OVEN. CAUSING THE CONVEYOR BELT TO STOP MOVING. THE GEARMOTOR WILL NEED TO BE REPLACEDDUE TO INTERNALSTRUCTURAL DAMAGE.
CHANGE THE REVERSING SWITCH ONLY WHEN POWER IS DIS-CONNECTED TO
OTHERWISE,FATALDAMAGE WILL OCCUR TO THE GEARMOTOR,
DISCONNECT THE POWER SUPPLY BEFORE SERVICING COMPONENTS INSIDE
1.
EITHER OF THE CONTROL BOXES. SERIOUS INJURY, INCLUDING DEATH, MAY OCCURIF CONTACTIS MADE TOINCOMING POWER.
2. Reversing theconveyor belt requiresopening the PowerControl Boxdoor.
3. Locate a small rocker switch mounted just inside the control box, either black or orange in color. Twowires areconnected to it.
4. Changethe switch positionto theopposite setting. No other changesare necessary.
5. Close and securelyfasten the door.
6. Re-connectpower to theunit.
CONVEYOR BELT FITS INTO UNIT FROM FRONT
HINGED
FRONT DOOR
DRIVE SHAFT PIN ALIGNS WITH COUPLING OF GEARMOTOR
CRUMB PANS MOUNT IN CONVEYOR FRAME
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Remove the front door and verify the proper orientation of the upper air return shield.
c) The plenum
fingersare identical,so any fingercan be mountedin anylocation.
REMOVABLE PLENUM "FINGERS" ASSEMBLY
ALL FOUR IDENTICAL
HINGED
FRONT DOOR
UPPER AIR RETURN SHIELD
INTERNAL FIXED AIR PLENUM ASSEMBLIES
END SLOTS TOWARDS
HINGED DOOR
LOWER AIR RETURN SHIELD ASSEMBLY
d)
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 lostout thesides of the cook chamber.
HANGER PINS (ATTACHEDTO UPPER COVER )
UPPER COVER (LEFTSIDE)
LOWER COVER
(LEFTSIDE)
ADJUSTABLE BAFFLE
1/4-TURN FASTENERS (2) TOP & (2) BOTTOM ( CAPTIVE T O COVER )
UPPER COVER ( RIGHT SIDE )
LOWER COVER ( RIGHT SIDE )
ADJUSTABLE BAFFLE
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7. INITIAL STARTUP
a)
Focus on the angled Electric Control Box containingthe 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 beingadded tothe system.
MAIN SWITCH ON (I) OFF (0)
TOP TEMPERATURE READY INDICATOR LIGHT (HEAT)
TOPAIR VELOCITY SPEED CONTROL CW=FASTER
CONVEYOR BELTSPEED CONTROL CW=SLOWER
BOTTOMAIR VELOCITYSPEED CONTROL CW=FASTER
ELECTRIC CONTROLBOX
BOTTOM TEMPERATURE READY INDICATOR LIGHT (HEAT)
1) Flip ON the Main Switch. The switch should light up when ON ( ), and be dark when
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OFF( ). Normal warm-up time is 20 -30 minutes for maximum temperature. Lower
UPPER TEMPERATURE CONTROL CW=HOTTER
LOWER TEMPERATURE CONTROL CW=HOTTER
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temperaturesettings will takeless time.
IF THE MAIN SWITCH IS TURNED OFF DURING INITIAL START-UP, LEAVE UNIT OFF
2)
FOR AT LEAST 15 SECONDS TOALLOW 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. THISCAN DAMAGETHE UNIT.
3) Turn the Air Velocity Speed Controls to MAX (full Clockwise rotation) and listen for the airvelocity speedto 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 markon theknob is pointingstraight UP).
6) Turnthe temperature control knobs to 350°F. Aseach chamber (upper andlower) reachthis temperature, the indicator lights will cycle ON and OFF, verifying that the heaters are operatingproperly in responseto heatdemand.
7) As you become familiar with the oven, you will set the Topand BottomTemperature 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.
) Gradually turn the conveyor belt control Counter-clockwise and verify that the conveyor belt
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moves faster and faster. Repeat this process, turning the knob Clockwise, verifying that the conveyorbelt moves slower.
NOTE: AT SPEED SETTINGSABOVE 10 (10-minute cook time), IT MAYBE HARD TOTELL THE BELT IS MOVING. PLACEAPAN ONTHEBELTTOOBSERVETHAT IT MOVESINTOTHE COOK CHAMBER.
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8. SHUTDOWN
The conveyor oven is supplied with a special that helps cool the oven quickly once the unit has been shut OFF. This feature performs the following functions when the Main Switch is turnedOFF atthe end of the day:
a) Theblowers keeprunning to re-circulateair through theair chambers b) Theheaters shutOFF. c) The conveyorbelt stopsmoving. d) Once the oven has cooled down to a factory pre-set temperature,the blowersshut OFF. The
ovenis nowcompletely OFF.
NOTE: TO ACCELERATE THE COOLING OF THE OVEN, OPEN THE FRONT DOOR TO ALLOW COOLERAIR INTOTHE 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 NEVERGET HOT ENOUGHTO COOK IFTHE FRONTDOOR IS OPEN.
COOL-DOWN CIRCUIT
NOTE:This pre-settemperatureis notadjustable.
9. SPECIAL FEATURES
Your new conveyor oven has been built with numerous enhancementsto add flexibility and simplicity to yourcooking operation. The conveyor ovensare built in two versions:
VARIABLE HEAT/VARIABLE AIR
VARIABLE HEAT/FIXED AIR
Thefollowing special features :
A. INDEPENDENT TOP AND BOTTOM HEAT. Different temperature settings can be set for
bothtop andbottom heat zones.
B. VARIABLE-SPEEDCONVEYOR BELT
C. FIELD-REVERSIBLECONVEYOR BELTTRAVEL
D. FRONT-REMOVABLECONVEYOR BELT. No need toslide thebelt assembly outthe side.
E. INDEPENDENTTOPAND BOTTOMOUTER SIDE COVERS. Makes it possible to remove
conveyorbelt from the front.
F. SYMMETRICAL OUTER COVERS (DUAL AIR 1828E ONLY). Top and bottom outer side
coverscan mounton either side.
G. EASE IN CLEANING. This is accomplished by easily removable components for access to
thecook chamber, air plenumfingers, and conveyorbelt assembly.
AREFOUND IN BOTH VERSIONS
VARIABLE HEAT/VARIABLE AIR
The unithas this additionalfeature.
VARIABLE-SPEED TOP AND BOTTOM AIR VELOCITY. This allows for maximum flexibility in controllingthe cooking environment,as some food products require lesstop airthan others.
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10. CLEANING
CAUTION: THE CONVEYOROVEN CONTAINS ELECTRICALCOMPONENTS. TURN OFFTHE OVEN ANDDISCONNECT THE POWERBEFORE CLEANING BEGINS.
DONOT CLEANTHE CONVEYOR OVENWITHAWATER JET.
WEEKLYCLEANING:
Oven Exterior: CLEAN ONLY WHEN THE OVEN IS COLD.
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.
Rinsewith aMOIST,NOT SOAKING, cloth.
Oven Interior: CLEAN ONLY WHEN THE OVEN IS COLD.
(cookchamber) is of aluminized steel,and requires carenot toover-clean and scratchthe surface.
CAUTION: DO NOT USE OVEN CLEANERS, CAUSTIC SOLUTIONS OR MECHANICAL MEANS BECAUSETHESE WILLDAMAGE THE ALUMINIZEDSURFACES
and cleaners that meet national and/or local codes. Clean the walls of the cook chamber with a mild soapand watersolution.
To clean the interior of the conveyor oven, it is necessary to remove the front door, the (4) outer sides panels,the conveyor beltassembly, andthe (4) air plenum fingers.(See page 9.)
ConveyorBeltAssembly
1. Remove crumb pans.
2. Remove plenum fingerassembliesand disassemblefor cleaning.
Removeconveyor belt assembly.
Useonly adamp cloth.
Standard constructionof the exterioris
Standard construction of the interior
. Use only thedetergent solutions
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 UN- USABLE.
Using a plastic abrasive pad, wipe the conveyor belt in a back-and-forth motion to remove baked-on product. Wipe clean with a hot, damp cloth.
2. 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. Wipe clean with a hot, damp cloth.
NOTE: 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 repairprior to re-installationinto the unit.
Plenum Fingers
The conveyor oven contains (4) plenum fingers that direct air onto the product surface while cooking. This 3-piece assemblycomes apart forcleaning, as shownbelow:
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AIR PLENUM FINGER ASSEMBLY
Outer Perforated
Panel
(Stainless Steel)
Although symmetrical in design, inner panel
must have flanges
facing up as shown
Main Panel
(Aluminized Steel)
Inner Perforated
Screen
(Stainless Steel)
The Outer Perforated panel is locked into place through a friction fit to the Main panel. This method of fastening also captures the Inner panel, holding it in place. The Outer panel slides off the Main panel, exposing the perforated Inner panel. The Inner panel is symmetrical in design, and may be placed in either direction, as long as the outer flanges are pointing as shown in the figure
UPWARD
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 thecleaning 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 cookchamber.
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 INCOMINGPOWER.
Duringnormal operation of the oven,lubrication is notrequired.
To achieve maximum efficiency,keep the oven clean. How you maintainyour oven will determine how long it lasts.
If the ovenfails to operate, perform thefollowing inspections BEFOREcallingan authorizedservice agent:
:
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1. Check to see ifthe maincircuit breaker isON atthe breaker panel.
.
2. Check the (2) 5-amp fuses located in the bottom of the Power Control Box
IF FUSES ARE BAD, REPLACE ONLY WITH IDENTICAL FUSES. DO NOT SUBSTITUTE HIGHER VALUE FUSES, AS THIS MAY NULLIFY NEEDED PROTECTION FORTHE INTERNALELECTRICAL COMPONENTS.
3. Check that the Main Switch is ON. If operating properly, the rocker switch will be lighted
whenON.
4. Check the setting of the temperature control thermostats (knobs). If operating properly,they
will activate theamber indicatorlightsas youturn theknobs backand forth, calling for heat. It is very unlikelythat the lightwill burnout.
5. If there is noair blowing,check the following:
i. RESET
ii.
DUALAIR MODELVHVA-SERIES
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 thenturn iton again.
DUAL AIR MODEL VH-SERIES WARNING
section, open the Power Control Box and locate the overload relay (above gearmotor). . TrytheMain Switchagain.
1. NOTE:
PUSHIN THERESET BUTTON
The Overload Relay is both a current limiting and a thermal
device
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,
notoverheated
, meaning that if one or both of the blower motors get jammed, the
, must becorrect for properoperation.
: theunit by turningthe MainSwitch OFF
: Observing the at the beginning of this
RESET button pushed IN & overload
CAUTION
:
If the conveyor belt does not move, check to see that the coupling setscrew is tight on the
6.
gearmotoroutput shaft.
If the oven still does not operate, turn OFF the Main Switch and disconnect the power supply to the unit(if possible). Contactthe factory, factory representative,or an authorized serviceagency.
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. Followthis procedure,usingthe diagramprovided: (See drawingbelow)
a) Remove any extension trays present, rotating them upwards to clear the conveyor frame.
Flangeson thetrays hook aroundthe ends of the frame. b) Remove thetwo 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°
counterclockwiseto loosen, and90° clockwiseto tighten. d) It isnot necessaryto remove theouter lower sidecovers.
NOTE:
On Dual Air Models VH-, VHVA Series ovens, the outer upper and lower covers
1828E
aresymmetrical, and can be mountedon either sideof theoven.
e) Open thefront hinged door. f) Carefully supporting both right and left sides of the conveyor, lift the front edge slightly and
pulltowards you,watching as thedrive shaft pullsout ofthe gearmotor coupling.
14. CONVEYOR INSTALLATION
Installingthe conveyorbelt assemblyis done in exact reverse order to its 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. See Section 6a for this procedure.
DONOT FORCETHE DRIVE PININTO THE COUPLINGIF THEY DO NOTALIGN.
IF EXTENSION TRAYSARE
IF EXTENSION TRAYSARE PRESENT, ROTATE THEM UPWARDSTO REMOVE FROM CONVEYOR FRAME
UPPER OUTER SIDE COVER WITH ADJUSTABLE BAFFLE
PRESENT, ROTATE THEM UPWARDSTO REMOVE FROM CONVEYOR FRAME
UPPER OUTER SIDE COVER WITH ADJUSTABLE 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. Remove the adjustment knob of the conveyor belt speed control (see page 10) using a small,
standard screwdriver to loosen the setscrew.
B. 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 ablack markingpen to mark the frame in the same manner.
C. These distances represent exactly ¼ of the distance of the cook chamber: ¼ x 20” cook chamber
(DualAir 1620E) = 5”; ¼ x28” cook chamber (DualAir 1828E)= 7”.
D. 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.
E. 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.
F. 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.
G. 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:
timing results using the method described.
H Cook/Bake Time is not the same as time of delivery. is the actual time required
for the first item, leading edge to trailing edge. is leading edge to leading edge. For example, the for a 16” pizza with a 6 minute (using the DualAir 1828 conveyor) is 9.4 minutes.
The label COOK TIME marks are close approximates, and may vary slightly from actual
Time of Delivery Bake/Cook Time
5” (1620E), or 7” (1828E)
Time of Delivery
Cook/Bake Time
16
Time will be the same for any size product.
Time of delivery will be different for
different sizes of products.
Bake Time
Leading Edge of Product
Time of Delivery (TOD) = X (Bake Chamber Length + Product Diameter)
Bake Time
Bake Chamber Length
Trailing Edge of Product
Time of Delivery
Example 1:
Bakers Pride , 6 Minute Bake Time, 16” pizza (time required for the 1st item):
Dual Air Model 1620
(TOD) = X (20 + 16) = 10.8 Minutes
6 Minutes
20”
Example 2:
Dual Air Model 1828Bakers Pride , 6 Minute Bake Time, 16” pizza (time required for the 1st item):
(TOD) = X (28 + 16) = 9.4 Minutes
6 Minutes
28”
I. To calculate production capacity per conveyor, per hour use the following formula.
Oven Capacity/Hour (OCH) =X
Bake Chamber Length X Bake Chamber Depth 60 Min/Hr
Product Diameter Bake Time
2
Example 1:
Dual Air Model 1620Bakers Pride , 6 Minute Pizza, 16” Pizza
OCH = X = 12.5
(20 X 16)
2
16
60
6
Example 2:
Dual Air Model 1828Bakers Pride , 6 Minute Pizza, 16” Pizza
OCH = X = 19.7
(28 X 18)
2
16
60
6
17
16. TROUBLESHOOTING GUIDE
THE PROBLEM THE CAUSE THE SOLUTION
Oven doesn't start
Conveyor belt
doesn't move, or it
moves unevenly.
Unexpected speed
changes.
Blown fuse(s) Main Switch OFF Turn ON Main Switch broken Main circuit breaker OFF Power cord disconnected (1620E only)
Power connections broken
Conveyor belt running backwards
Belt loose. Drive sprockets not engaging belt links.
Belt master link(s) missing, broken, or installed incorrectly. Conveyor belt installed backwards or upside down
Speed setting very high (long cook time)
Speed knob loose
Conveyor drive shaft not engaged to coupling Drive coupling loose
Drive coupling missing
Conveyor belt jammed
Drive shaft pin missing Drive sprockets worn out, missing, or mis- aligned
Conveyor gearmotor failed
Replace fuse with identical type - 5 amp
Replace Turn ON Plug cord in (1620E only) Check power distribution terminal block below Power Control Box
CAUTION: TURN OFF POWER
Power Control Box, and flip Reversing Switch to opposite position. Tighten conveyor belt using adjustable tensioner at one end of belt frame. Verify that all sprockets are tight and properly aligned with belt "segments". If belt still too loose, remove one belt link.
Install master link(s) properly Proper belt orientation is for outer belt
loops to be facing in oppositie direction of travel, and the outer loops to be on top of the trailing link. Adjust speed to FAST to verify if knob is tight and potentiometer working correctly Tighten setscrew in knob on pot shaft.
NOTE:
mark on label to indicate cook time in minutes. This may require calibration of belt movement using timing marks on conveyor frame.
Section 15.
Align and engage shaft pin to slot in drive coupling Tighten setscrew to gearmotor output shaft (shaft is "flatted" for setscrew grip) Properly re-attach and tighten to gearmotor output shaft Remove belt assembly to identify obstruction to belt movement. Remedy problem. Straighten bent belt links Locate and re-install or replace Replace sprockets or entire drive shaft assembly. Tighten sprockets to shaft.
CAUTION: THE FOLLOWING TESTS ARE PERFORMED WITH LIVE POWER WITH CONTROL BOX OPEN. THESE TESTS TO BE PERFORMED ONLY BY
Mark on knob should line up with
For CALIBRATION, see
, open
18
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
THE PROBLEM THE CAUSE THE SOLUTION
Conveyor belt
doesn't move, or it
moves unevenly.
Unexpected speed
changes.
(Continued)
No air or not
enough air coming
from blower(s)
Conveyor gearmotor failed
(Continued)
Blower motor(s) "stalled" (not running when Main Switch ON)
Blower motor(s) "jammed"
4. Verify wire connectors from power supply to gearmotor (2 wires w/connectors). If power supply doesn't
5. Verify potentiomter connections to 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.
Turn Main Switch OFF for at least 15 seconds, then turn it ON again. This resets speed controls. If this doesnt help, turn OFF Main Circuit Breaker for
Minute
Remove source(s) of obstruction.
CAUTION: TURN OFF MAIN CIRCUIT BREAKER BEFORE REACHING INTO BLOWER WHEEL COMPARTMENT. SERIOUS INJURY COULD RESULT OTHERWISE!!
, then turn it ON again.
1
Blower speed control(s) at minimum or low- speed setting (model VHVA-Series only)
No sound or noise coming from blower(s)
Blower(s) turning backwards. (Applies to models VH-, VHVA Three­phase units, and VHVA Single-phase units. Does NOT apply to VH Single­phase units.)
Turn speed knob(s) clockwise to increase air flow
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)
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.
19
THE PROBLEM THE CAUSE THE SOLUTION
No air or not
enough air coming
from blower(s)
(Continued)
Wire connections broken or loose between speed controls and blower motor(s) (model VHVA-Series only)
Wire connections broken or loose between blower motor(s) and terminal block.
Wire connections broken or loose between potentiometer and speed control
CAUTION: THE FOLLOWING TESTS 1­4 ARE PERFORMED WITH LIVE POWER 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 compartment.
3. Tighten wires from pot to speed control at the header terminal on speed control board.
4. One pot wire contains a 15K ohm resistor at the pot body. Verify this solder connection is good.
Blower speed control(s) failed
Blower motor(s) failed
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).
7. If all previous tests are normal, then blower motor has failed. Replace.
20
THE PROBLEM THE CAUSE THE SOLUTION
Oven not hot
enough
Temperature setting too low
Cooking too soon
Temperature control not working properly
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 Replace.
OPPOSITE
control is bad.
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
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
°F
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
Ohms
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
°F
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
Ohms
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
°F
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
POWER BLOCK WIRING - SINGLE PHASE
G
L2
L1
POWER BLOCK WIRING - THREE PHASE
G
L3
L2
L1
GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 )
WHITE 14 GA ( L2 ) BROWN
14GA (R)
WHITE 14 GA ( L2 ) WHITE 14 GA ( L2 )
BLACK 18 GA ( #4 ) BROWN 10 GA ( E )
BLACK 10 GA ( A )
GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 )
BROWN 14 GA(R) BROWN 10 GA ( E )
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 )
WHITE 18 GA
(#5)
WIRE DESIGNATIONS
(LETTERSOR#s)
A
C
SSR 1 SSR 2 SSR 3
30 29 3430 29 29
PROBE
B
DE F
PROBE
UPPERTEMPCONTROL LOWERTEMPCONTROL
VAC COM
240 VAC
VAC COM
240 VAC
CONTROL BOX DOOR
LOWER
ELEMENTS
Solid State Relay
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
Single Phase Units
Circuit Leads 208 Volt 240 Volt
Between C & L2 Ohms 38.9 Ohms28.3 Between D & L2 Ohms 38.9 Ohms28.3 Between C & D 56.2 Ohms 77.6 Ohms Between C & F 42.5 Ohms 58.1 Ohms Between D & F 42.3 Ohms 58.1 Ohms Between F & L2 14.5 Ohms 19.5 Ohms
Three Phase Units
Circuit Leads 208 Volt 240 Volt
Between C & L3 28.3 Ohms 38.9 Ohms Between D & L2 28.3 Ohms 38.9 Ohms Between C & D 1.2M Ohms 1.3M Ohms Between C & F 1.2M Ohms 1.3M Ohms Between D & F 42.3 Ohms 58.1 Ohms Between F & L2 14.5 Ohms 19.5 Ohms
24
Solid State Relay Labeling I.D. - Models VH-, VHVA1828E Conveyor Ovens
UPPER ELEMENTS
POWER BLOCK WIRING - SINGLE PHASE
G
L2
L1
POWER BLOCK WIRING - THREE PHASE
G
L3
L2
L1
GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 )
WHITE 1 4 GA ( L2 )
R14GA
WHITE 14 GA ( L2 ) WHITE 1 4 GA ( L2 )
BLACK 18 GA ( #4 )
BROWN 10 GA ( E )
BLACK 10 GA ( A )
GREEN 10 GA ( GRND ) GREEN 14 GA ( G4 )
R14GA
BROWN 10 GA ( E )
BROWN 10 GA ( E )
WHITE 1 4 GA ( L2 ) WHITE 18 GA ( #5 ) WHITE 14 GA ( L2 ) WHITE 1 4 GA ( L2 )
BLACK 18 GA ( #4 )
BLACK 10 GA ( A )
WHITE 1 8 GA
(#5)
WIRE DESIGNATIONS
(LETTERSOR#s)
B
A
C
DE F
SSR 1 SSR 2 SSR 3
30 29 3430 29 29
PROBE
PROBE
UPPERTEMPCONTROL LOWERTEMPCONTROL
VAC COM
240 VAC
VAC COM
240 VAC
CONTROL BOX DOOR
LOWER
ELEMENTS
Solid State Relay
RESISTANCE VALUES OF VARIOUS CIRCUITS
Dual Air Models: VH, VHVA1828E Conveyor Ovens
NOTE: Fuses removed; (4) elements @ 3kw = 12kw; Ohms = Volts x Volts / Watts
Single Phase Units
Circuit Leads 208 Volt 240 Volt
Between C & L2 14.3 Ohms 18.2 Ohms Between D & L2 14.3 Ohms 18.2 Ohms Between C & D 28.5 Ohms 36.2 Ohms Between C & F 21.4 Ohms 27.3 Ohms Between D & F 21.4 Ohms 27.2 Ohms Between F & L2 7.3 Ohms 9.3 Ohms
Element Resistance Chart - VH-,VHVA-Series Conveyor Oven
VH-,VHVHA1620E
VH-,VHVHA1828E
1500
3000
Three Phase Units
Circuit Leads 208 Volt 240 Volt
Between C & L3 14.5 Ohms 18.2 Ohms Between D & L2 14.3 Ohms 18.2 Ohms Between C & D 4.7M Ohms 3.4M Ohms Between C & F 4.7M Ohms 3.4M Ohms Between D & F 21.4 Ohms 27.2 Ohms Between F & L2 7.2 Ohms 9.4 Ohms
208 VOLTS 220 VOLTS 240 VOLTSELEMENT WATTAGEMODEL
28.8 ohms 32.3 ohms 38.4 ohms
14.4 ohms
25
16.1 ohms
19.2 ohms
19. ELECTRICAL SCHEMATICS & WIRING DIAGRAMS
VHVA1620E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase
POWER BLOCK
FUSE
1
MAIN SWITCH MAIN SWITCH
12
14
BROWN
C
16
N.O.
BROWN
18
BROWN
48
VACUUM SWITCHES.
CLOSE ON BL OWER V ACUUM
20
BROWN
50
ELEMENT CONTACTOR
UPPER TEMPERATURE ADJUST MENT POTENTIOMETER
LOWER TEMPERATURE ADJUST MENT POTENTIOMETER
BROWN
R
FAN RELAY
COOL-DOWN THERMOSTATS.
E
CLOSEON TEMPERATURE RISE.
15 KOHM RESI STOR
15 KOHM RESI STOR
D
44
C1
10
A
40
A
42
UPPER BLOWER MOTOR SPEED CONTROL AND POTENTIOMETER
LOWER B LOWER MOTOR SPEED CONTROL AND POTENT IOMETER
BRN S 3
BLK S 2
BRN S3
BLK S 2
38
10 GA. BLACK
E
SSR 3
BLACK
SSR 1
B
SSR 2
BLACK
E2 E1 S1 S2 S3 DIR
RED S1
BLOWE R MOTO R SPEE D CO NTROL S
1~ IN; 1 or 3~ OUT
E2 E1 S1 S2 S3 DIR
RED S1
BROWN
20
INPUT OUTPUT
GEARMOTOR
POWER SUPPLY
BLUE
43
BROWN
PURPLE
YELLOW o r BLUE
ORANGE
RTD SE NSOR
PURPLE
YELLOW o r BLUE
ORANGE
RTD SE NSOR
5AMPS
468
10 GA. BROWN
F
C
D
24
21
-
-
­+ + +
L1 L2 G
1500 WATTS EACH
G
1500 WATTS EACH
TOP ELEMENTS
A1 A2 A3
22
B1 B2 B3
WHITE
41 39 46
GEARMOTOR
REVERSING
SWITCH
UPPER TEMPERATURE CONTROL
3
1
2
5
4
3
1
2
5
4
LOWER TEMPERATURE CONTROL
BOTTOM ELEMENTS
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
19
BLACK ( 2 )
RED
+
11
10
9
8
7
6
11
10
9
8
7
6
23
BLACK
BLACK
BLACK
WHITE
123
26
J
BRN
J
28
WHITE
37
25
32
BLUE
FUSE 2 5AMPS
5
I
RIGHT
J
LEFT
H
RIGHT
K
LEFT
REAR E XHAUST FAN S
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
G2
A
Y
A
R
G
BROWN
G3
27
GRN / YLW
29
GRAY
36
34
COOLI NG FAN IN CONTROL BOX DOOR
79
19
COOLI NG FAN IN CONTROL BOX
14 GA WHITE
M
N
Q
P
BLACK
BLACK
ORANGE YELLOW GREEN
33
GRY
A
BROWN
WHITE
C1
C1
C1
C1
35
GRAY
G1
18 GA. GREEN/ YE LLOWS TRIPE
11
14 GA WHITE
14 G A BRO WN
R
BLACK
T1
3~
T2
CCW
T3
UPPER BLOWER MOTOR
T1T1
3~
T2
CCW
T3
LOWER BLOWER MOTOR
BLUE
GREEN / YELLOW STRI PE
J
30
J
BROWN
J
BLUE
10 GA. GREEN/ YELLOW STRIPE
19
14 G A WHI TE
GRN
GEARMOTOR AND S PEED POT
BLUE
C O I L
C O I L
C O I L
GRN
15
BLUE
WHITE
ND
G
G2
13
G4
GREEN
17
18 GA. GREEN / YELLOW STRIPE
BLUE
G
25
G2
31
SSR 1
SSR 2
SSR 3
U4160Q
26
27
MAIN
SWITCH
l
(ON)
13
12
TERMINAL
O
10
11
UPPER
LOWER
18 GA.BLUE
BLOCK #4
18 GA.BLACK
18GA. WHITE
GRAY
A
GRAY
GRAY
A
GRAY
18 GA BLU
15
18 GA. BROW N
18 GA.BROWN
14
16
COOL-DOW N RELAY
COOLING FAN
(AIRPULLEDINTOCONTROLBOX)
N.O.
C
(OFF)
18 GA.BROWN
ITEMS LO CATED IN ANGL ED CONTROL BOX
VHVA1620E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 1 Phase
WHITE 18 GA.23
UPPER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
BROWN 2 2G A. TO S3 BLACK 22GA. TO S2
RED 22GA. TO S1
17
18
PURPL E
YELLOWorBLUE ORANGE
PURPLE
YELLOWorBLUE ORANGE
20
15K OHMR ESISTOR
LOWER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
15K OHM RESI STOR
BLACK 22 GA. ( 2 PLCS )
-
46
GEARMOTOR
POWER
SUPPLY
3
2
1
REVERSING
SWITCH
FROM POWER
SUPPLY
BROWN 22GA. TO S3
BLACK 2 2 GA. TO S2 RED 22GA. TO S1
BLK
+
WHT
22 GA.
CONVEYOR GEARMOTOR
GREEN 22 GA.
ORANGE 22 GA.
DISTRIBU TION
GREEN G
WHIT E L2
BLACK L1
RED 22 GA.
POWER
BLOCK
SPEED POT
SPEED P OT
8
18 GA.BLACK
18 GA. WHIT E
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
18 GA. BLUE
48
18 GA. BROWN
18 GA.BROWN
18 GA. BROWN
BLACK
BLACK
UPPER
TEMPERATURE
CONTROL PO TS
VACUUM SWIT CHES
LOWER
50
18 GA. BROW N
CONVEYOR SPEED POT
---+++
~
BLACK 18 GA.
A1 A2
BLACK 18 GA.
A3
BLACK 18 GA.
E2E1S1 S2 S3 DIR
J
21
TE
I
H
W
B1
BLACK 18 GA.
B2
BLACK 18 GA.
B3
BLACK 18 GA.
E2E1 S1S2 S3 DIR
J
39
41
44
RED 22 GA.
24VDC
OUTPUT
RED
37
+
RED
BLACK
YELLOW 22 GA.
GROUND SCREW
G
Y
R
E
E
L
E
L
N
O
GREEN 10 GA.
/
W
G1
G
L2
L1
G2
A
(L1 )
O
R
B
ELEMENT CONTACTOR
18 GA.
N
W
BLACK 22 GA.
43
BLUE 18 GA.
TO TERM. BLOCK 3
18 GA.
22
19
18GA. BROWN
20
18 GA.BLACK 18 GA. WHIT E 18 GA. BLUE 18 GA.BROWN
BLUE
BROWN
Q
WHITE
P
WHIT E
N
WHITE 14 GA.
WHITE 14 GA.
BROWN 14 GA.
WHITE L2 14 GA .
BROWN 14 GA.
R
L2
L2
18
M
WHITE 14 GA.
WHITE L2 1 4GA .
L2
WHITE 18 GA.
WHITE
WHITE L2 1 4GA .
TO TERM. BLOCK 3
BLACK F1 1 8G A.
WHITE F2 18 GA.
WHIT E L 2 18 G A.
BLUE 18 GA.31
14 G A. H IGH TEMP
17
WHITE
TERMI NAL BLOCK #1
6
7
5
5
9
BROWN
BLUE
H
K
J
I
9
BLACK
8
8
38
ITEMS LOCATEDIN CONTROL BOX ENCLOSURE
25 26
4
BLACK L1 18 GA.
4
38
F1 5 AMP
F2 5 AMP
PROBE
H
J
BROWN L1 10 G A.
BLACK L1 10 GA.
BLACK 18 GA.24
42
C
COOL-DOWN
THERMOSTAT
D
UPPER
H
40
14 GA . HI-T EMP
I
K
C
PROBE
A
E
18 GA. BROWN
18 GA.BLUE
TERMINAL BLOCK #4
E
A
G4
ELEMENTS
COOL-DOWN
THERMOSTAT
LOWER
ELEMENTS
G
G
F
C
B
SSR 1 SSR 2
BLUE J
BROWN JUMPER
ORG
PUR
910
J
26
BROWN
25
18 GA. GRAY
G2
14 GA . HI-T EMP
14 GA . HI-T EMP
14 GA . HI-T EMP 14GA. HI-TEMP
14GA. HI-TEMP
D
BLUE
JUMPER
TO REMOTE POT
YEL
LOWE R TEMP C ONTROL
678
11
GREEN / YELLOW - GROUND
F
14GA. HI-TEMP
A
30
TO REMOTE POT
45213
UPPER TEMP CONTROL
18 GA.BROWN
67 8
30
18 GA. GRAY
32
TO
36
18 GA. GR EEN / YELLOW - GR OUND
CONTROL BOX COOLING FAN
( AIR PULLED INTO CONTROLBOX )
ITEMS LOCATEDON MAIN CONTROL BOX DOOR
18 GA. GRE EN / YEL LOW ( MO TOR GROUND )
E
SSR 3
5213
4
J
28
BLUE
PURPLE
BLACK
F
18 GA.BLUE
910
27
BLACK
ORANGE
18GA. BROWN
YELLOW
11
G3
K
J
K
D
34
29
BLUE
29
34
14GA. HI-TEMPJUMPER
REAR EXHAUST FANS
(AIRPUSHEDOUTOFOVEN)
SPLICES
BLACK
BLACK
BLACK
BLACK
SPLICES
TO TERMINAL BLOCK #4
GREEN (GROUND)
GREEN ( GROUND)
G
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
CLOCKWIS E ROTATION
WHEN LOOKING AT
BACK OF MO TOR
ITEMS LOC ATED IN BLOWE R COMPARTMENT
T1 YEL
T2 YEL
T3 YEL
G
T3 YEL
33
35
T1 YEL
T2 YEL
18GA. GRAY
18GA. GRAY
TERMINAL BLOCK #2
TERMINAL BLOCK #3
42
24
23
31
A1
A2
A3 BLK
B1
B2
B3 BLK
TO UPPER BLOWE R MOTOR SPEED CONTROL
TO LOWER BLOWER MOTOR SPEED CONTROL
GREEN / YELLOW ­GROUND
G4
G4
G
U4160Q
VHVA1620E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase
CAUT ION: L1 & L2 INP UTS MUS T BE 1 00-125 VOL T PO TEN TIAL.
IF A "HIGH- VOLTA GE LEG" GREAT ER THAN 125 V OLTS IS PRESENT, IT MUST CONNECT TO L3.
MAIN SWITCH MAIN SWITCH
12
14
BROWN
C
16
N.O.
FAN RELAY
10
38
A
10 GA. BLACK
E
BROWN
SSR 3
18
BROWN
48
VACUUM SWITCHES.
CLOSE ON BLOWER VACUUM
BROWN
50
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
40
COOL-DOWN THERMOSTATS.
CLOSE ON TEMPERATURE RISE.
42
BROWN
20
15 K OHM RESISTOR
15 K OHM RESISTOR
D
E
R
44
C1
ELEMENT CONTACTOR
BLACK
A
UPPER BLOWER MOTOR SPEED CONTROL AND POTENTIOMETER
BRN S3 BLK S2
RED S1
LOWERBLOWER MOTOR SPEED CONTROL AND POTENTIOMETER
BRN S3 BLK S2
RED S1
INPUT
PURPL E
YELLOW
YELLOWorBLUE
ORANGE
PURPL E
YELLOWorBLUE
YELLOW
ORANGE
20
B
BLACK
E2 E1 S1 S2 S3 DIR
BLOWER MOTOR SPEED CONTROLS
1~ IN; 1 or 3~OUT
E2 E1 S1 S2 S3 DIR
BROWN
GEARMOTOR
POWER SUPPLY
43
BLUE
BROWN
RTD SENSOR
RTD SENSOR
SSR 1
SSR 2
OUTPUT
FUSE
1
5AMPS
468
10 GA. BROWN
F
C
D
24
21
-
-
-
+
+
+
POWER BLOCK
L1 L2 L3 G
1500 WATTS EACH
G
1500 WATTS EACH
TOP ELEMENTS
A1 A2 A3
22
B1 B2 B3
WHITE
41
39
RED
46
GEARMOTOR
REVERSI NG
SWITCH
UPPER TEMPERATURE CONTROL
3
1
2 5 4
3 1
2 5 4
LOWER
TEMPERATURE
CONTROL
BOTTOM ELEMENTS
BLACK
BLACK
23
WHITE
BLACK BLACK BLACK
BLACK BLACK BLACK
19
BLACK
BLACK ( 2 )
37
+
WHITE
123
26
11
10
9 8
32
J
7 6
28
BRN
11
10
9 8
J
7 6
FUSE 2 5AMPS
5
I
RIGHT
J
LEFT
H
RIGHT
K
LEFT
REAR EXHAUST FANS
YELLOW
YELLOW YELLOW
YELLOW
YELLOW YELLOW
25
G2
Y
A
R
G
27
BLUE
GRN / YLW
GRAY
COOLING FAN IN CONTROL BOX DOOR
BROWN
G3
79
19
COOLING FAN IN CONTROL BOX
14 GA WHITE
M
N
Q
P
BLACK
BLACK
ORANGE YELLOW GREEN
33
GRY
A
29
36
BROWN
34
WHITE
C1
C1
C1
C1
35
GRAY
A
G1
18 GA. GREEN / YELLOW STRIPE
11
14 GA WHITE
14 GA BROWN
R
BLACK
T1 T2
3~ CCW
T3
UPPER BLOWER MOTOR
T1T1 T2
3~ CCW
T3
LOWER BLOWER MOTOR
BLUE
GREEN / YELLOW STRIPE
J
30
J
BROWN
J
BLUE
10 GA. GREEN / YELLOW S TRIPE
19
14 GA WHITE
GEARMOTOR AND SPEED POT
BLUE
C O I L
C O I L
C O I L
GRN
GRN
15
BLUE
WHITE
13
ND
G
G2
G4
GREEN
17
18 GA. GREEN / YELLOW STRIPE
BLUE
G
25
G2
31
SSR 1
SSR 2
SSR 3
U4162Q
28
29
MAIN
SWITCH
l
(ON)
(OFF)
13
12
TERMINAL
O
BLOCK #4
10
18 GA.BLACK
11
18 GA. W HITE
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
18 GA.BLUE
18 GA.BROWN
18 GABLU
15
N.O.
18 GA.BROWN
18 GA.BROWN
C
14
16
COOL-DO WN RELAY
COOLING FA N
( AIR PULLED INTO CONTROLBOX )
ITEMS LOCATED IN ANGLEDCONTROLBOX
VHVA1620E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 3 Phase
WHITE 18 GA.
23
UPPER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
BROWN 22 GA. TO S3
BLACK 22 GA. TO S 2
RED 2 2 G A. TO S1
17
PURPLE
YELLOW
YELLOW o r BLUE
ORANGE
YELLOW
YELLOW orBLUE
ORANGE
15K O HM RESI STOR
LOWER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
BROWN 22 GA. TO S3
BLACK 22 GA. TO S2
RED 22 GA. TO S1
15K OHMRESISTOR
BLACK 22 GA. ( 2 PLCS )
-
46
GEARMOTOR
18
POWER
SUPPLY
20
3
BLK
2
RED 22 GA.
1
+
WHT
REVERSING
22 GA .
SWITCH
PURPL E
CONVEYOR GEARMOTOR
GREEN 22 GA.
ORANGE 2 2 GA.
SPEED POT
SPEED POT
8
18G A.BLACK
18 GA. WHI TE
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
18 GA. BLUE
48
18 GA.BROWN
18 GA. BR OWN
18 GA. BROWN
BLACK
BLACK
UPPER
TEMPERATURE
CONTROL P OTS
VACUUM SW ITCHES
LOWER
50
18 GA. BR OWN
CONVEYOR SPEED POT
DISTRIBUTION
GREEN G
FROM
RED L3
POWER
WHITE L2
SUPPLY
BLACK L1
41
---+++
~
POWER
BLOCK
L3
L2
L1
39
24VD C
OUTPUT
RED
+
YELLO W 22 GA.
G
E2E1 S1 S2 S3DIR
J
E2 E1S1 S2 S3 DIR
J
RED
BLACK
A1 A2
A3
B1 B2
B3
BLACK 18 GA.
BLACK 18 GA.
BLACK 18 GA.
BLACK 18 GA.
BLACK 18 GA.
BLACK 18 GA.
44
GREEN 10 GA.
G1
RED 22 GA.
GROUND SCREW
Y
E L
A
(L1 )
TO TERM. BLOCK 3
18 GA.
18 GA.
21
22
E
N
W
WHIT
O
R
B
19
18 GA.BROWN
20
18 GA. BLA CK 18 GA.WHITE 18 GA.BLUE 18 GA.BROWN
BLACK 22 G A.
43
BLUE
37
BROWN
Q
WHITE
P
WHITE
N
BLUE 18 GA.
18
M
WHITE 18 GA.
TO TERM. BLOCK 3
WHITE
BLUE 18 GA.
31
14 GA. HIGH TEMP
8
9
17
BROWN
BLUE
H
K
J
I
9
WHITE
8
BLACK
38
WHITE 14 GA.
WHITE 14 GA.
WHIT E 1 4 G A.
BROWN 14 GA.
TERMINAL BLOCK #1
ELEMEN T CONTACTOR
G
R
E
E
L
N
O
/
W
BROWN 14 GA.
G2
R
L2
6
BLACK F1 18 GA.
WHITE F2 18 GA.
7
E (L3 )
WHITE L2 18 GA.
5
5
WHITE L2 14 GA.
WHITE L2 14 GA.
WHITE L2 14 GA.
L2
L2
ITEMS L OCATED IN CON TROL BOX ENCL OSURE
BLACK 18 GA.
24
42
C
PROBE
H
38
J
C
PROBE
A
E
26
25
F1
4
5 AMP
F2 5 AMP
BLACK L1 1 8 GA.
BROWN L 3 10 GA.
4
BLACK L 1 1 0 GA.
A
COOL -DOWN
THERMOSTAT
H
40
COOL -DOWN
THERMOSTAT
14GA. HI-TEMP
G
F
I
K
14 GA.HI-TEMP
A
SSR 1 SSR 2
30
BROWN JUMPER
TO REMOTE POT
452
UPP ER TE MP CON TROL LO WER TE MP CON TROL
18 GA.BROWN
67 8
30
18 GA. BR OWN
18 GA.BLUE
18 GA. GRAY
32
TO
TERMINAL
36
BLOCK #4
18 GA. G REEN / YEL LOW - G ROUND
E
CONTROL BO X COOLING FA N
( AIR PULLED INTO CONTR OL BOX )
ITEMS LOCATED ON MAIN CONTROL BOXD OOR
18 GA. GREEN / YELLOW ( MOTOR GROUN D)
G4
UPPER
ELEMENTS
K
LOWER
ELEMENTS
G
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP
14 GA.HI-TEMP
F
14 GA.HI-TEMP
C
B
D
E
SSR 3
BLUE
BLUE J
JUMPER
TO REMOTE POT
PURPLE
YEL
ORG
PUR
JJ
26
18 GA.GRAY
52 1 3
1 34
91011 67 891011
28
BROWN
25
BLUE
G2
GREEN / YELLOW - G ROUND
BLACK
F
18 GA.BLUE
ORANG E
27
BLACK
18G A.BROWN
YELLOW
G3
J
34
29
BLUE
29
34
D
REAR EXHAUST FANS
( AIR PU SHED OUT OF OVE N )
K
D
ITEMSLOCATED IN BLOWER COMPARTMENT
SPLICES
UPPER BLOWER MOTOR
G
LOWER BLOWER MOTOR
CLOCKWI SE ROTATIO N
WHEN LOOKING AT
BACK O F MOTO R
14 GA.HI-TEMPJUMPER
BLACK
BLACK
BLACK
BLAC K
SPLI C E S
33
35
TO TERMINAL BLOCK #4
GREEN (GROUND)
GREEN (GROUND)
G
T1 YEL
T2 Y EL
T3 YEL
T1 YEL
T2 Y EL
T3 Y EL
18GA. GRAY
18GA. GRAY
TERMINAL BLOCK #2
TERMINAL BLOCK #3
42
24
23
TO UPPER BLOWER MOTOR SPEED CONTROL
GREEN / YELLOW­GROUND
G
A1
A2
A3 BLK
TO LOWER BLOWER MOTOR SPEED CONTROL
B1
B2
B3 BL K
U4162Q
31
G4
G4
VH1620E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase
48
50
POWER BLOCK
FUSE
1
MAIN SWITCH MAIN SWITCH
12
14
BROWN
C
16
N.O.
FAN RELAY
10
38
A
5AMPS
10 GA. BLACK
E
SSR 3
SSR 1
B
SSR 2
CONTACTOR
BROWN
VACUUMSWITCHES.
BROWN
BROWN
18
CLOSE ON BLOWERVACUUM
COOL-DOWN THERMOSTATS.
BROWN
20
TO TERMINAL
1
BLOCK
TO POWER
BLOCK
40
BLACK
A
CLOSE ON TEMPERATURE RISE.
42
24
BLACK
L2
WHITE
BLACK
L1
468
10 GA. BROWN
F
G
C
D
OVERLOAD
RELAY
L1 L2 G
BOTTOM ELEMENTS
1500 WATTS EACH
1500 WATTS EACH
TOP ELEMENTS
BLACK
BLACK
21
22
BLACK
FUSE2 5AMPS
5
RIGHT
REAR EXHAUST FANS
WHITE
23
4
WHITE
4
2
WHITE
19
I
J
LEFT
H
RIGHT
K
LEFT
2
GREY
GREY
7
19
COOLING FAN IN CONTROL BOX
14 GA WHITE
M
N
Q
P
BLACK
BLACK
GREY GREY
1
GREY
9
WHITE
C1
C1
C1
C1
GREY
3
GREY
G1
18 GA. GREEN / YELLOW STRIPE
11
14 GA WHITE
14 GA BROWN
R
BLACK
1~
CAP
CCW
3
GREY
1
1~
CAP
CCW
10 GA. GREEN / YELLOW S TRIPE
19
14 GA WHITE
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
15
BLUE
WHITE
ND
G
G2
13
G4
GREEN
17
18 GA. GR EEN / YELLOW STRIPE
BLUE
G
GRN
GREEN
R
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
INPUT OUTPUT
E
D
44
C1
GEARMOTOR
POWER SUPPLY
43
PURPLE
YELLOW
YELLOW o r BLUE
ORANGE
RTD SENSOR
PURPLE
YELLOW o r BLUE
YELLOW
ORANGE
RTD SENSOR
BLUE
BROWN
-
-
-
+
+
+
GEARMOTOR
UPPER TEMPERATURE CONTROL
3
1
2 5
4
3
1
2 5
4
LOWER TEMPERATURE CONTROL
41
BLACK ( 2 )
39
RED
46
REVERSING
SWITCH
BLACK
37
+
BLUE
GREEN / YELLOW STRIPE
J
30
J
BROWN
J
BLUE
GEARMOTOR AND SPEED POT
BLUE
C O I L
C O I L
C O I L
25
G2
31
SSR 1
SSR 2
SSR 3
G2
Y
A
G3
GRN / YLW
GRAY
COOLING FAN IN CONTROL BOX DOOR
A
BROWN
29
34
ORANGE
36
YELLOW GREEN
33
GRY
35
GRAY
A
BROWN
WHITE
123
25
26
11 10
9 8
7
6
11 10
9 8
7
6
R
G
32
J
27
28
BRN
BLUE
J
U4161Q
30
31
MAIN
SWITCH
l
(ON)
(OFF)
13
12
TERMINAL
O
BLOCK #3
10
18 GA. BLACK
11
18 G A. WHI TE
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
18 GA.BLUE
18 GA.BROWN
18 GABLU
15
N.O.
18GA. BROWN
18 GA.BROWN
C
14
16
COOL-DO WN RELAY
COOLIN G FAN
(AIRPULLEDINTOCONTROLBOX)
ITEMS L OCATED IN ANG LED CO NTROL BOX
VH1620E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 1 Phase
WHITE 18 GA.
G1
OVER LOA D
RELAY
44
RED 22 GA.
Y
GREEN 10 GA.
A
37
BLACK 22 GA.
GROUND SCREW
G
R
E L
L
O
W
(L1 )
23
BLUE 18 GA.
BLUE 18 GA.
31
31
38
26
F1 5 AMP
F2 5 AMP
PROBE
H
J
BROWN L1 10 GA.
BLAC K L1 10 G A.
42
C
COO L-DOW N
THERMOSTAT
D
UPPER
ELEMENTS
H
COO L-DOW N
40
THERMOSTAT
14 GA.HI-TEMP
LOWER
K
ELEMENTS
G
G
F
I
K
C
PROBE
14 GA.HI-TEMP
A
A
E
18 G A. BRO WN
18 GA.BLUE
E
A
G4
SSR1 SSR2
30
TO REMOTE POT
452
UPPERTEMPCONTROL LOWERTEMPCONTROL
18 GA.BROWN
67 8
30
18 GA. GRAY
32
TO
TERMINAL
36
BLOCK #4
18GA. GREEN /YELLOW -GROUND
CONTROL B OX COOLIN G FAN
( AIR PULL ED INTO CONTR OL BOX )
ITEMS L OCATED ON MA IN CONTROL BO X DOOR
18 GA. GREEN / YELLOW ( MOTOR GROUND )
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP 14 GA.HI-TEMP
F
14 GA.HI-TEMP
C
D
B
E
SSR 3
BLUE
BLUE J
BROWN JUMPER
JJ
26
JUMPER
TO REMOTE POT
PURPLE
YEL
ORG
PUR
52 1 3
1 34
91011 67 891011
BROWN
25
28
BLUE
F
18 GA. BLUE
ORANGE
27
18 GA. BROWN
YELLOW
J
K
34
29
BLUE
29
34
18 GA. GRAY
GREEN / YELLO W - G ROUND
G2
G3
BLACK
BLACK
D
TO
TERMINAL
WHITE 18 GA.
19
21
22
WHITE 18 GA.
BLACK 18 GA.
BLOCK #2
BLOWER MOTORS
L1
L2
18 GA . BLACK 18 GA.WHITE 18 GA. BLUE 18 GA.BROWN
43
BLUE
BROWN
Q
L2
WHITE
P
WHITE
N
BLUE 18 GA.
14 GA. HIGH TEMP
8
9
17
18
BROWN
BLUE
H
K
M
WHITE
J
I
9
WHITE
8
BLACK
38
WHIT E 14 G A.
WHIT E 14 G A.
WHITE 14 GA.
WHITE L2 14 G A.
L2
WHITE L2 14GA.
L2
WHITE F2 18 GA.
WHITE L2 14GA.
WHITE L2 18 GA.
TERMINAL BLOCK #1
6
BLACK F1 18 GA.
7
25
4
BLACK L1 1 8 GA.
5
5
4
BROWN 14 GA.
ELEMENT CONTACTOR
E
E
N
/
BROWN 14 GA.
G2
R
L2
L1
BLAC K 18 GA.
24
18 GA. BROWN
20
CONTAC TOR
BLACK 18 G A.
WHITE 18 GA.
L1
L2
8
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
48
18 GA.BROWN
BLACK
BLACK
UPPER
TEMPERATURE
CONTROL P OTS
VACUUM SWITCH ES
LOWER
50
18 GA . BROW N
CONVEYOR SPEED POT
17
18
PURPLE
YELLOW
YELLOW or BLUE
ORANGE
PURPL E
YELLOW
YELLOW orBLUE
ORANGE
20
BLACK22 GA. ( 2 PLCS)
-
46
GEARMOTOR
POWER
SUPPLY
3
2
1
REVERSI NG
SWITCH
BLK
WHT
CONVEYOR GEARMOTOR
+
22 G A.
GREEN 22 G A.
ORANGE 22 GA.
41
---+++
~
RED 22 GA.
POWER
24VD C
OUTPUT
RED
+
YELLO W 22 G A.
39
RED
BLACK
DISTRIBUTION
BLOCK
FROM
POWER
SUPPLY
GREEN G
WHITE L2
BLACK L1
G
L2
L1
ITEMS L OCATED IN C ONTR OL BOX ENCLOSU RE
14 GA. HI-TE MP JUM PER
REAR EXHAUST FANS
(AIRPUSHEDOUTOFOVEN)
SPLICES
BLACK
BLACK
TO TERMINAL BLOCK #3
G
UPPER BLOWER MOTOR
G
LOWER BLOWER MOTOR
CLOCKWIS E ROTATI ON
WHEN LOOKING AT
BACK OF MOTOR
ITEMS LOCATEDIN BLOWER COMPARTMENT
GREEN (GRO UND)
GREEN (GR OUND)
4
2
4
2
1
4
2
3
1
BLACK
SPLICES 4X
B
LACK
18GA.
33
GRAY
18GA.
35
GRAY
3
G
TERMINAL BLOCK #2
42
21
WHITE 18 GA.
BLACK 18 GA.
22
OVER LOAD
24
24
GREEN / YEL LOW ­GROUND
TO
RELAY
23
31
23
31
G4
U4161Q
VH1620E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase
CAUTION: L1 & L2 INPUTS MUST BE 120-125 VOLT POTENTIAL.
IF A "HIGH-VOLTAGE LEG" GREATER THAN 125 VOLTS IS PRESENT,IT MUST CONNECT TO L3.
MAIN SWITCH MAIN SWITCH
12
14
BROWN
C
16
N.O.
FAN RELAY
10
38
A
10 GA. BLACK
E
BROWN
18
40
BROWN
48
COOL-DOWN THERMOSTATS.
CLOSE ON TEMPERATURE RISE.
BLACK
A
42
BROWN
VACUUM SWITCHES.
20
CLOSE ON BLOWERVACUUM
TO TERMINAL
BLOCK
BROWN
TO POWER
50
BLOCK
24
B
L
AC
K
1
L2
WHITE
BLACK
L1
SSR 3
SSR 1
B
SSR 2
CONTACTOR
FUSE
1
5AMPS
468
10 GA. BROWN
F
C
D
OVERLOAD
RELAY
POWER BLOCK
L1 L2 L3 G
1500 WATTS EACH
G
1500 WATTS EACH
TOP ELEMENTS
BOTTOM ELEMENTS
BLACK
BLACK
WHITE
23
21
WHITE
22
BLACK
2
WHITE
19
FUSE 2 5AMPS
5
COOLING FAN IN CONTROL BOX
14 GA WHITE
I
RIGHT
J
LEFT
H
RIGHT
K
LEFT
BLACK
REAR EXHAUST FANS
BLACK
4
2
GREY
4
GREY
M
N
Q
P
GREY GREY
GREY
G1
10 GA. GREEN / YELLOW STR IPE
18 GA. GREEN / YELLOW STRIPE
7
9
11
WHITE
19
13
ND
G
G2
15
BLUE
C1
14 GA WHITE
C1
14 GA BROWN
C1
R
C1
BLACK
1~
CAP
CCW
GREY
3
GREY
1
1~
CAP
GREY
CCW
3
1
19
WHITE
14 GA WHITE
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
17
BLUE
GRN
GREEN
G4
GREEN
G
18 GA. G RE EN / YELL OW ST RIP E
R
ELEMENT CONTACTOR
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
INPUT OUTPUT
D
E
44
C1
GEARMOTOR
POWER SUPPLY
43
PURP LE YELLOW
YELLOWor BLUE ORANGE
RTD S ENSOR
PURP LE YELLOWor BLUE
YELLOW ORANGE
RTD S ENSOR
BLUE
BROWN
-
-
-
+
+
+
GEARMOTOR
REVERSING
UPPER TEMPERATURE CONTROL
3
1
2 5
4
3
1
2 5
4
LOWER TEMPERATURE CONTROL
41 39
46
SWITCH
BLACK ( 2 )
RED
+
11
10
9 8
7 6
11
10
9 8
7 6
BLACK
WHITE
123
26
26
J
BRN
J
28
32
37
BLUE
GREEN / YELLOW STRIPE
J
30
J
BROWN
J
BLUE
GEARMOTOR AND SPEED POT
BLUE
C O I L
C O I L
C O I L
25
G2
31
SSR 1
SSR 2
SSR 3
ORANGE YELLOW GREEN
25
G2
Y
A
R
G
27
BLUE
A
BROWN
G3
GRN / YLW
29
GRAY
36
34
COOLING FAN IN CONTROL BOX DOOR
33
GRY
35
GRAY
A
BROWN
U4163Q
32
33
MAIN
SWITCH
l
(ON)
(OFF)
13
12
TERMINAL
O
BLOCK #3
10
18 G A. BL ACK
11
18 GA . WHI TE
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
18 GA. BLUE
18 GA. BROWN
18 GABLU
15
N.O.
18GA. BROWN
18 GA.BROWN
C
14
16
COOL-DOWN RELA Y
COOLIN G FAN
( AIR PULLED INTOCONTROL BOX)
ITEMS LOCATE D IN ANGLED CONTROL BOX
VH1620E Wiring Diagram 208. 220 or 240VAC, 50/60Hz, 3 Phase
WHI TE 18 G A.
OVERLOAD
RELAY
L1
44
37
RED 22 GA.
BLACK 22 GA.
GROUND SCREW
G
Y
R
E
E
L
E
L
N
O
/
W
GREEN 10 GA.
G1 G2
A
(L1)
23
19
L1
L2
WHI TE 18 G A.
L2
ELEMENT CONTACTOR
21
22
43
BLUE 18 GA.
WHI TE 18 G A.
BLACK 18 GA.
Q
BROWN 14 GA.
BROWN 14 GA.
R
L2
18 GA.BLACK 18 GA. WHITE 18 G A. BL UE 18 GA. BROWN
BLUE
BROWN
WHITE
P
WHITE 14 GA.
L2
WHITE 14 GA.
WHIT E L 2 1 4 GA.
WHITE
N
L2
18
M
WHITE 14 GA.
WHITE L2 14 GA.
TERMINAL BLOCK #2
WHITE
WHITE F2 18 GA .
WHITE L2 14 GA.
E (L3 )
WHITE L2 18 GA.
31
31
TO
BLOWER MOTORS
17
TERMINAL BLOCK #1
6
BLACK F1 18GA.
7
BLUE 18 GA.
BLUE 18 GA.
14 GA. HIGH TEMP
5
5
9
BROWN
BLUE
H
K
J
I
WHITE
BLACK
42
C
PROBE
H
8
38
J
C
PROBE
A
9
8
38
26
25
F1
4
5 AMP
F2 5 AMP
BLACK L1 18 GA.
BROWN L3 10 GA.
4
BLAC K L1 10 GA.
A
COOL-DOWN
THERMOST AT
H
40
COOL-DOWN
THERMOST AT
14 GA. HI-T EMP
G
F
I
K
14 GA. HI-TE MP
A
E
18 GA. BROWN
18 GA . BLUE
E
G4
SSR 1 SSR 2
30
BROWN JUMPER
TO REMOTE POT
452 1 345
UPPER TEMP CONTROL
18 GA. BROWN
67 891011 67 891011
30
18 GA. GRA Y
32
TO
TERMINAL
36
BLOCK #4
18 GA. GREEN / YELLOW- GROUND
CONTROL BOX COOLIN G FAN
(AIRPULLEDINTOCONTROLBOX)
ITEMS LOCATED ON MAIN CONTROL BOX DOOR
18 GA. GREEN / YELLOW ( MOTOR GROUND )
UPPER
ELEMENTS
LOWER
ELEMENTS
G
F
C
B
BLUE J
YEL
PUR
ORG
J
26
BROWN
25
18 GA.GRAY
G2
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP
14 GA.HI-TEMP
14 GA. HI-TE MP
D
E
SSR 3
BLUE
JUMPER
TO REMOTE POT
2 1
LOWER TEMP CONTROL
J
28
BLUE
GREEN / Y ELLOW - GROUND
BLACK
18 GA . BLU E
PURPLE
27
BLACK
F
ORANGE
18 GA.BROWN
YELLOW
3
G3
D
K
J
K
REAR EXHAUST FANS
(AIRPUSHEDOUTOFOVEN)
D
34
29
BLUE
29
34
CLOCKWISE ROTATION
ITEMS LOCATEDIN BLOWER COMPARTMENT
SPLICES
G
UPPER BLOWER MOTOR
G
LOWER BLOWER MOTOR
WHEN LOOKING AT
BACK OF MOTOR
14 GA. HI-TE MP JUM PER
BLACK
BLACK
TO TERMINAL BLOCK #3
GREEN (GRO UND)
GREEN (GR OUND)
4
2
4
1
4
2
3
1
33
35
2
3
BLACK
SPLICES 4X
BLA
CK
18GA. GRAY
18GA. GRAY
TERMINAL BLOCK #2
G
24
BLACK18 GA.
20
18 GA.BROWN
CONTACTOR
BLACK 18 GA.
WHITE 18 GA.
L1
L2
8
18 GA. BLACK
18 GA . WHI TE
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
18 GA . BLU E
48
18 GA . BROW N
18 GA . BROW N
18 GA.BROWN
BLACK
BLACK
UPPER
TEMPERATURE
CONTROL POTS
VACUUM SWITCH ES
LOWER
50
18 GA . BRO WN
CONVEYOR SPEED POT
17
18
PURPLE
YELLOW
YELLOWor BLUE
ORANGE
PURPL E
YELLOW
YELLOWor BLUE
ORANGE
20
BLACK 22 GA. ( 2 PLCS )
-
46
GEARMOTOR
POWER
SUPPLY
3
2
1
REVERSING
SWITCH
BLK
WHT
CONVEYOR GEARMOTOR
+
22 GA.
GREEN 22 GA.
ORANGE 22 GA.
---+++
~
RED 22 GA .
POWER
3941
24VDC OUTPU T
RED
+
YELLOW 22 GA.
RED
BLACK
DISTRIB UTION
BLOCK
FROM POWER
SUPPLY
GREEN G
RED L3 WHITE L2
BLACK L1
G
L3
L2
L1
ITEMS LOCAT ED IN CONT ROL BOX ENC LOSURE
24
42
24
21
WHITE 18 GA.
BLAC K 18 GA.
22
OVERLOAD
GREEN / YELLOW ­GROU ND
TO
RELAY
23
31
23
31
G4
U4163U
VHVA1828E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase
JUNCTION
BLOCK
L1 L2 G
BLACK WHITE GREEN
18
BROWN
48
VACUUM SWITCHES.
BROWN
50
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
12
14
BROWN
C
16
N.O.
BROWN
CLOSE ON BLOWER VACUUM
10
FAN
A
RELAY
COOL
-
DOWN T/STATS.
40
CLOSE ON TEMP RISE.
A
42
UPPER BLOWER MOTOR SPEED CONTROLAND POTENTIOMETER
15 K OHM RESISTOR
LOWER BLOWER MOTORSPEED CONTROL AND POTENTIOMETER
15 K OHM RESISTOR
RED
44
C1
ELEMENT CONTACTOR
FUSE 5AMPS
86 4
38
30 AMP
10 GA. BLACK
30 AMP
10 GA. BROWN
E
SSR 3
BLACK
SSR 1
B
SSR 2
BLACK
BRN S 3
E2 E1 S1
BLK S2
S2 S3 DIR
RED S1
BLOWER MOTOR SPEED CONT ROL S
1~ IN; 1 or 3~OUT
BRNS3
E2 E1 S1
BLK S2
S2 S3 DIR
RED S1
BROWN
20
GEARMOTOR
POWER SUPPLY
43
BLUE
OUTPUT
-
-
-
+
+
+
INPUT
BROWN
PURPLE YELLOW or BLUE ORANGE
RTDSENSOR
PURPLE YELLOW or BLUE ORANGE
RTDSENSOR
POWER BLOCK
1
24
21
F
C
D
L1 L2 G
BOTTOM ELEMENTS
3000 WATTS EACH
G
3000 WATTS EACH
TOP ELEMENTS
BLACK
BLACK
A1 A2 A3
22
B1 B2 B3
19
WHITE
41
BLACK ( 2 )
39
46
RED
+
GEARMOTOR
REVERSING
SWITCH
UPPER TEMPERATURE CONTROL
11
3
10
1
9 8
2
7
5 4
6
11
3
10
1
9 8
2
7
5 4
6
LOWER TEMPERATURE CONTROL
23
BLACK BLACK BLACK
BLACK BLACK BLACK
BLACK
WHITE
123
26
J
J
WHITE
37
25
32
28
BRN
FUSE2 5AMPS
5
20A
I
2
RIGHT
20A
J2
LEFT
20A
H2
RIGHT
20A
K2
LEFT
REAR EXHAUSTFANS
YELLOW
YELLOW YELLOW
YELLOW
YELLOW YELLOW
G2
Y
A
R
G
BROWN
G3
27
BLUE
GRN / YLW
GRAY
COOLING FAN IN CONTROL BOX DOOR
COOLING FAN IN CONTROL BOX
BLACK
BLACK
ORANGE YELLOW
GREEN
33
GRY
A
29
36
34
19
14 GA. WHITE
BROWN
97
WHITE
M
N
Q
P
35
GRAY
A
G1
18 GA. GREEN/ YELLOW STRIPE
11
C1
C1
14 GA WHITE
C1
R
C1
BLACK
T1
3~
T2
CCW
T3
UPPER BLOWER MOTOR
T1T1 T2
3~ CCW
T3
LOWER BLOWER MOTOR
BLUE
GREEN / YELLOW STRIPE
J
30
J
BROWN
J
BLUE
10 GA. GREEN / YELLOWSTRIPE
MAINSWITCHMAIN SWITCH
19
14 GA BROWN
14 GA WHITE
GRN
GEARMOTOR AND SPEED POT
BLUE
C O I L
C O I L
C O I L
ND
G
G2
13
15
BLUE
WHITE
G4
GREEN
17
18 G A. GREE N / YEL LOW STR IP E
BLUE
G
GRN
25
G2
31
SSR 1
SSR 2
SSR 3
U4164Q
34
35
MAIN
SWITCH
O
l
(ON)
(OFF)
13
18 GA.BLUE
18 GA.BROWN
12
ITEMS LOCATED IN ANGL ED CONTROL BOX
10
18 GA.BLACK
11
18 GA.WHITE
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
18 GA. BROWN
18 GA.BROWN
14
16
(AIRPULLEDINTOCONTROLBOX)
TERMINAL BLOCK #4
18 GABLU
15
N.O.
C
COOL-DO WN RELAY
COOLING FAN
VHVA1828E Wiring Diagram 208. 220 or 240VAC, 50/60Hz, 1 Phase
WHITE 18 GA.
23
SPEED POT
SPEED POT
8
18 GA.BLACK
18 GA. WH ITE
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
17
18 GA. BLUE
48
18 GA. BROW N
18 GA. BROW N
18 GA.BROWN
BLACK
BLACK
UPPER
TEMPERATURE
CONTROL POT S
VACUUM SWITCHES
LOWER
50
18 GA. BRO WN
CONVEYOR SPEED POT
ITEMS LOCATED IN J UNCTION BOX
18
20
PURPLE
YELLOW o r BLUE
ORANGE
PURPL E
YELLOWorBLUE
ORANGE
UPPER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
BROWN 22 GA. TO S3
BLACK 22 G A. TO S 2
RED 22 GA. TO S1
15K O HM RESI STOR
LOWER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
15K OHMRESISTOR
BLACK 22 GA. ( 2 PLCS )
-
46
GEARMOTOR
POWER
SUPPLY
3
2
1
REVERSING
SWITCH
10 GA. GREEN G
10 GA. WHITE L2
10 GA. BLACK L1
BROWN 22 GA. TO S3
BLACK 22 GA. TO S2
RED 22 GA. TO S1
BLK
+
WHT
22 GA .
CONVEYOR GEARMOTOR
GREEN 22 GA.
ORAN GE 22 GA .
DISTRIBUTION
A1
BLACK 18 GA.
A2
BLACK 18 GA.
A3
BLACK 18 GA.
E2 E1 S 1 S2 S3 DIR
J
21
E
T
WHI
B
B1
BLACK 18 GA.
B2
BLACK 18 GA.
B3
BLACK18 GA.
E2E1 S1 S2S3 DIR
J
39
41
44
RED 22 GA.
24VDC
OUTPUT
---+++
~
RED 22 GA.
POWER
BLOCK
RED
+
YELLO W 22 GA .
G
RED
BLACK
37
GROUND SCREW
G
Y
R
E
E
L
E
L
N
O
GREEN10GA.
/
W
G1
G2
L2
L1
ITEMS LOCATED IN C ONTROL BOX ENCLOSURE
18 GA.
W
O R
ELEMENT CONTACTOR
22
N
BLACK 22 GA.
BLUE
43
BROWN
Q
BLUE 18 GA.
BROWN 14 GA.
BROWN 14 GA.
R
L2
18 GA.
19
18GA. BROWN
20
18 GA. BL ACK 18 GA.WHITE 18 GA.BLUE 18 GA. BROW N
WHIT E
P
WHITE 14 GA.
WHITE 14 GA.
WHITE L2 14 GA.
WHITE
L2
TO TERM. BLOCK 3
WHITE 18 GA.
TO TERM. BLOCK 3
18
N
M
WHITE
WHITE 14 GA.
WHITE F2 18 GA.
WHITE L2 14 GA.
WHITE L2 14 GA.
WHITE L2 18 GA.
L2
BROWN L1 10 GA.
BLUE 18 GA.
31
14 GA. HIGH TEMP
17
TERMINAL BLOCK #1
6
BLACK F1 18 GA.
7
BLACK L1 10 GA.
5
5
9
BROWN
BLUE
H
K
J
I
9
WHITE
BLACK
8
8
38
25
BLACK 18 GA.
24
42
C
PROBE
H2
20 AMP
FUSE
38
20 AMP
I2
FUSE
C
PROBE
A
E
26
F1
4
5 AMP
F2 5 AMP
BLACK L1 1 8G A.
30 AMP
FUSE
4
30 AMP
FUSE
E
A
COOL-DOWN
THERMOSTAT
H
COOL -DOWN
40
THERMOSTAT
14 GA . HI-T EMP
G
F
I
J2
K2
14 GA.HI-TEMP
A
B
SSR 1
30
BROWN JUMPER
TO REMOTE POT
452 1 345
UPPERTEMPCONTROL LOWERTEMPCONTROL
18 GA. BROWN
67 8
30
18GA. BROWN
18 GA.BLUE
18GA. GRAY
32
TO
TERMINAL
36
BLOCK #4
18 GA. GREEN / YELLOW -G ROUND
CONTROL BO X COOLING FAN
( AIR PULLED INTO CONTROL BOX )
ITEMS LOCATED ONMAIN CONTROL BOX DOOR
18 GA. GREEN / YELLOW ( MOTOR G ROUND )
G4
UPPER
ELEMENTS
LOWER
ELEMENTS
G
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP 14 GA.HI-TEMP
F
14 GA.HI-TEMP
C
D
SSR 2
BLUE
BLUE J
JUMPER
TO REMOTE POT
YEL
PUR
ORG
91011 67 891011
J
26
BROWN
25
18 GA.GRAY
GREEN/ YELLOW - GROUND
G2
20 AM P
FUSE
D
K
20
AMP
FUSE
J
K2
REAR EXHAUST FANS
( AIR PU SHED OUT OF OVEN )
D
F
E
SSR 3
18 GA.BROWN
34
18 GA.BLUE
29
BLUE
PURP LE
YELLOW
ORANGE
2 1
3
J
28
29
27
BLUE
34
G3
BLACK
BLACK
ITEMSLOCATEDIN BLOWERCOMPARTMENT
SPLICES
UPPER BLOWER MOTOR
G
LOWER BLOWER MOTOR
CLOCKWI SE ROTATIO N
WHE N LO OKING AT
BACK OF M OTOR
14 GA.HI-TEMPJUMPER
BLACK
BLACK
BLACK
BLACK
SPLICES
33
35
TO TERMINAL BLOCK #4
GREEN (GROUND)
GREEN (GROUND)
G
T1 YEL
T2 YE L
T3 YEL
T1 YEL
T2 YE L
T3 YEL
18GA. GRAY
18GA. GRAY
TERMINAL BLOCK #2
TERMINAL BLOCK #3
42
24
23
31
TO UPPER BLOWER MOTOR SPEED CONTROL
GREEN / YELLOW ­GROUND
G4
G
A1
A2
A3 BLK
TO L OWER BLOWE R MOTOR SPEED CONTROL
B1
B2
B3 BL K
G4
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-V OLTAGE L EG" GREAT ER THAN 25 0 VOLTS IS PRESENT, IT MUST CONNECT TO L3.
10
12
14
8
6
38
BROWN
FAN RELAY
A
C
N.O.
16
10 GA. BLACK
E
B
E2 E1 S1 S2 S3 DIR
BLOWER MOTOR SPEED CONTROLS
1~ IN; 1 or 3~OUT
E2 E1 S1 S2 S3 DIR
BROWN
20
GEARMOTOR
POWER SUPPLY
BLUE
43
BROWN
RTD SENSOR
RTD SENSOR
SSR 3
SSR 1
SSR 2
BLACK
OUTPUT
18
BROWN
48
VACUUM SWITCHES.
BROWN
50
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
BROWN
CLOSE ON BLOWER VACUUM
RED
ELEMENT CONTACTOR
COOL DOWN T/STATS. CLOSE ON TEMP RISE.
15 K OHM RESISTOR
15 K OHM RESISTOR
-
C1
40
42
44
BLACK
A
UPPER BLOWER MOTOR SPEED CONTROL AND POTENTIOMETER
BRN S3 BLK S2
RED S1
LOWER BLOWER MOTOR SPEED CONTROL AND POTENTIOMETER
BRN S3 BLKS2
RED S1
INPUT
PURPL E
YELL OW
YELL OWorBLUE
ORANGE
PURPL E
YELL OW
YELL OWorBLUE
ORANGE
L1 L2 L3 G
BLACK WH I TE RED GREEN
POWER BLOCK
FUSE
1
L1 L2 L3 G
5AMPS
4
10 GA. BROWN
F
G
C
D
24
A1 A2 A3
21
22
B1 B2 B3
19
WHITE
41
-
-
-
+
+
+
BLACK ( 2 )
39
RED
46
GEARMOTOR
REVERSIN G
SWITCH
UPPER TEMPERATURE CONTROL
3 1
2 5 4
3 1
2 5 4
LOWER TEMPERATURE CONTROL
10
10
BOTTOM ELEMENTS
3000 WATTS EACH
3000 WATTS EACH
TOP ELEMENTS
BLACK
BLACK
23
WHITE
BLACK BLACK BLACK
BLACK BLACK BLACK
BLACK
37
+
WHITE
123
25
26
11
9 8
32
J
7 6
28
BRN
11
9 8
J
7 6
FUSE 2 5AMPS
5
I
RIGHT
J
LEFT
H
RIGHT
K
LEFT
REAR EXHAUST FANS
YELLOW
YELLOW YELLOW
YELLOW
YELLOW YELLOW
G2
Y
A
R
G
BROWN
G3
27
BLUE
GRN / YLW
GRAY
COOLING FAN IN CONTROL BOX DOOR
7
19
COOLING FAN IN CONTROL BOX
14 GA. WHITE
BLACK
BLACK
ORANGE YELLOW GREEN
33
GRY
A
29
36
34
M
N
Q
P
GRAY
A
BROWN
9
WHITE
C1
C1
C1
C1
T1 T2 T3
T1T1 T2 T3
35
30
G1
18 GA . GRE EN / YE LLO W ST RIPE
MAINSWITCHMAIN SWITCH
11
14 GA WHITE
14 GA BROWN
R
BLACK
3~ CCW
UPPER BLOWER MOTOR
3~ CCW
LOWER BLOWER MOTOR
GEARMOTOR AND SPEED POT
BLUE
GREEN / YELLOW STRIPE
J
J
BROWN
J
BLUE
10 GA. GREEN / YELLOWSTRIPE
13
15
BLUE
19
WHI TE
14 GA WHITE
GRN
GRN
25
BLUE
C O I L
C O I L
C O I L
NDG
17
31
SSR 1
SSR 2
SSR 3
G2
G4
GREEN
18 GA . GRE EN / YE LLO W S TRIPE
BLUE
G
G2
U4166Q
36
37
MAIN
SWITCH
O
l
(ON)
(OFF)
13
18 GA.BLUE
12
18 GA.BROWN
ITEMS L OCATED IN ANG LED CONTROL B OX
10
18 GA.BLACK
11
18 GA. WH ITE
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
15
18 GA.BROWN
18 GA.BROWN
14
16
(AIRPULLEDINTOCONTROLBOX)
TERMINAL BLOCK #4
18 GABLU
N.O.
C
COOL-DO WN RELAY
COOLING FA N
VHVA1828E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 3 Phase
WHITE 18 GA.
23
SPEED POT
SPEED POT
8
18GA. BLACK
18 GA. WHI TE
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
17
18 GA. BLUE
48
18 GA.BROWN
18 GA. BR OWN
18 GA.BROWN
BLACK
BLACK
UPPER
PURPLE
YELLOW
YELLOW o r BLUE
ORANGE
TEMPERATURE
CONTROL POTS
YELLOW
YELLOW orBLUE
LOWER
CONVEYOR SPEED P OT
ORANGE
VACUUM S WITCHE S
50
18 GA. BR OWN
G
L3
L2
L1
ITEMS LOC ATED IN JUNC TION BOX
UPPER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
BROWN 22 GA. TO S3
BLACK 22 G A. T O S2
RED 2 2 G A. T O S 1
15K O HM RESI STOR
LOWER BLOWER MOTOR SPEED CONTROL
1~ INPUT 3~ OUTPUT
BROWN 22 GA. TO S3
BLACK 22 GA. TO S2
RED 22 GA. TO S1
15K OHM RESISTOR
BLACK 22 GA. ( 2 PLCS )
-
46
GEARMOTOR
18
POWER
SUPPLY
20
3
BLK
2
1
RED 22 GA.
+
WHT
REVERSING
22 GA .
SWITCH
PURPL E
CONVEYOR GEARMOTOR
GREEN 22 GA.
ORANGE 2 2 GA.
POWER
DISTRIBUTION
10 GA. GREEN G
10 GA. RED L3
10 GA. WHITE L2
10 GA. BLACK L1
BLOCK
BLACK 18 GA.
A1 A2
BLACK 18 GA.
A3
BLACK 18 GA.
E2E1 S1 S2 S3DIR
J
21
WHITE
B1
BLACK 18 GA.
B2
BLACK 18 GA.
B3
BLACK 18 GA.
E2E1 S1S2 S3DIR
J
39
41
44
RED 22 GA.
24VD C OUTPUT
RED
+
---+++
~
RED
BLACK
37
B
18 GA.
N
W
O
R
43
22
BLACK 22 G A.
BLUE
BROWN
Q
BLUE 18 GA.
18 GA.
19
18 GA.BROWN
20
18 GA. BLA CK 18 GA.WHITE 18 GA.BLUE 18 GA.BROWN
WHITE
P
WHITE
N
18
M
TO TERM. BLOCK 3
WHITE 18 GA.
TO TERM. BLOCK 3
WHITE
BLUE 18 GA.
31
14 GA. HIGH TEMP
8
9
17
BROWN
BLUE
H
K
J
I
9
WHITE
8
BLACK
38
WHITE 14 GA.
WHITE 14 GA.
WHIT E 1 4 GA.
BROWN 14 GA.
TERMINAL BLOCK #1
YELLOW 22 GA.
G
L3
L2
L1
ELEMENT CONTACTOR
GROUND SCREW
G
Y
R
E
E
L
E
L
N
O
GREEN 10 GA.
/
W
G1
BROWN 14 GA.
G2
R
L2
A
(L1 )
6
BLACK F1 18 GA.
WHITE F2 18 GA.
7
E (L3 )
WHITE L2 18 GA.
5
5
WHITE L2 14 GA.
WHITE L2 14 GA.
WHITE L2 14 GA.
L2
L2
ITEM S LOC ATED IN C ONTROL BOX EN CLOSU RE
BLACK 18 GA.
24
42
C
PROBE
H
38
I
C
PROBE
A
E
26
25
F1
4
5 AMP
F2 5 AMP
BLACK L1 18 GA.
BROWN L3 10 GA.
4
BLACK L 1 10 GA.
A
COOL -DOWN
THERMOSTAT
40
COOL -DOWN
THERMOSTAT
14GA. HI-TEMP
G
F
J
K
14 GA.HI-TEMP
A
SSR 1 SSR 2
30
BROWN JUMPER
TO REMOTE POT
452
UPP ER TE MP CON TROL LOW ER TE MP CON TROL
18 GA.BROWN
67 8
30
18 GA. BRO WN
18 GA.BLUE
18 GA. GRAY
32
TO
TERMINAL
36
BLOCK #4
18GA. GREEN /YELLOW- GROUND
E
G4
CONTROL BO X COOLING FA N
( AIR PULLED INTO CONTROLBOX )
ITEMS L OCATED ON MAIN CONTROL BOX D OOR
18 G A. GRE EN / Y ELLO W ( MO TOR GROU ND )
UPPER
ELEMENTS
K
LOWER
ELEMENTS
G
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP
14 GA.HI-TEMP
F
14 GA.HI-TEMP
C
D
B
E
SSR 3
BLUE
BLUE J
JUMPER
TO REMOTE POT
YEL
ORG
PUR
JJ
26
18 GA.GRAY
52 1 3
1 34
91011 67 891011
28
BROWN
25
BLUE
GREEN / YELLOW - G ROUND
G2
BLACK
18 GA.BLUE
PURPLE
BLACK
F
ORAN GE
27
18G A.BROWN
YELLOW
G3
J
34
29
BLUE
29
34
D
REAR EXHAUST FANS
(AIRPUSHEDOUTOFOVEN)
SPLICES
K
D
CLOCKWI SE ROTATIO N
ITEMSLOCATED IN BLOWER COMPARTMENT
UPPER BLOWER MOTOR
G
LOWER BLOWER MOTOR
WHEN LOOKING AT
BACK OF MOTOR
14 GA.HI-TEMPJUMPER
BLACK
BLACK
BLACK
BLAC K
SPLI C E S
TO TERMINAL BLOCK #4
GREEN (GROUND)
GREEN (GROUND)
G
T1 YEL
T2 Y EL
T3 YEL
T1 YEL
T2 Y EL
T3 Y EL
18GA.
33
GRAY
18GA.
35
GRAY
TERMINAL BLOCK #2
TERMINAL BLOCK #3
42
24
23
31
TO UPPER BLOWER MOTOR SPEED CONTROL
GREEN / YELLOW­GROUND
G4
G
A1
A2
A3 BLK
TO LOWER BLOWER MOTOR SPEED CONTROL
B1
B2
B3 BL K
G4
U4166Q
VH1828E Schematic 208, 220 or 240VAC, 50/60Hz, 1 Phase
JUNCTION
BLOCK
L1 L2 G
BLACK WHITE GREEN
POWER BLOCK
POWER BLOCK
FUSE
1
L1 L2 G
6
30 AMP
30 AMP
B
E
SSR 3
SSR 1
SSR 2
5AMPS
4
10 GA. BLACK
10 GA. BROWN
F
C
D
OVERLOAD
RELAY
G
BOTTOM ELEMENTS
3000 WATTS EACH
3000 WATTS EACH
TOP ELEMENTS
BLACK
BLACK
21 22
BLACK
8
FAN RELAY
COOL DOWN T/STATS. CLOSE ON TEMP RISE.
10
38
A
-
40
BLACK
A
12
14
BROWN
C
N.O.
16
BROWN
18
BROWN
48
42
BROWN
VACUUM SWITCHES.
20
CLOSE ON BLOWER VACUUM
TO TERMINAL
BLOCK
BROWN
TO POWER
50
BLOCK
24
B
L
A
C
K
CONTACTOR
1
L2
WHITE
BLACK
L1
23
19
WHITE
WHITE
2
WHITE
FUSE 2 5AMPS
5
COOLING FAN IN CONTROL BOX
20A
I
2
RIGHT
20A
J2
LEFT
20A
H2
RIGHT
20A
K2
LEFT
REAR EXHAUST FANS
4
2
GREY
4
GREY
7
19
14 GA. WHITE
BLACK
BLACK
GREY GREY
1
GREY
WHITE
M
N
Q
P
GREY
3
GREY
18 GA . GRE EN / YE LLO W ST RIPE
9
C1
C1
C1
R
C1
BLACK
CAP
3
1
CAP
G1
11
14 GA WHITE
GREY
1~ CCW
1~ CCW
MAINSWITCHMAIN SWITCH
14 GA BROWN
10 GA. GREEN / YELLOWSTRIPE
13
15
BLUE
19
WHI TE
14 GA WHITE
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
G
17
ND
BLUE
GRN
GREEN
G2
G4
GREEN
G
18 GA . GRE EN / YE LLO W S TRIPE
RED
ELEMENT CONTACTOR
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
44
C1
INPUT
GEARMOTOR
POWER SUPPLY
43
PURPL E YELL OW
YELLOWo r BLUE ORANGE
RTD SENSOR
PURPL E YELLOWo r BLUE
YELL OW ORANGE
RTD SENSOR
BLUE
BROWN
OUTPUT
-
-
-
+
+
+
41
BLACK ( 2 )
39
RED
46
GEARMOTOR
REVERSIN G
SWITCH
UPPER TEMPERATURE CONTROL
3 1
2 5 4
3 1
2 5 4
LOWER TEMPERATURE CONTROL
BLACK
37
+
BLUE
GREEN / YELLOW STRIPE
J
30
J
BROWN
J
BLUE
GEARMOTOR AND SPEED POT
BLUE
C O I L
C O I L
C O I L
25
G2
31
SSR 1
SSR 2
SSR 3
U4165Q
G2
Y
A
G3
GRN / YLW
GRAY
COOLING FAN IN CONTROL BOX DOOR
A
BROWN
29
36
34
ORANGE
YELLOW GREEN
33
GRY
35
GRAY
A
BROWN
WHITE
123
25
26
11
10
9 8
7 6
11
10
9 8
7 6
R
G
32
J
27
28
BRN
BLUE
J
38
39
MAIN
SWITCH
l
(ON)
(OFF)
13
12
TERMINAL
O
BLOCK #4
10
18 GA. BLACK
11
18 G A. WHI TE
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
18 GA.BLUE
18 GA.BROWN
18 GABLU
15
N.O.
18GA. BROWN
18 GA.BROWN
C
14
16
COOL-DO WN RELAY
COOLIN G FAN
( AIR PULLED INTO CONTROLBOX )
ITEMS LOCATED IN ANGLED CONTROL BOX
VH1828E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 1 Phase
WHITE 18 GA.
G1
OVER LOA D
RELAY
44
RED 22 GA.
GROUND SCREW
Y
E
GREEN 10 GA.
23
BLUE 18 GA.
BLUE 18 GA.
31
31
21
22
WHITE 18 GA.
19
BLACK 18 GA.
BLOCK #2
BLOWER MOTORS
TO
TERMINAL
WHITE 18 GA.
L1
L2
18 GA . BLACK 18 GA.WHITE 18 GA. BLUE 18 GA.BROWN
37
43
BLUE
BROWN
Q
L2
WHITE
BLACK 22 GA.
P
WHITE
N
BLUE 18 GA.
14 GA. HIGH TEMP
8
9
17
18
BROWN
BLUE
H
K
M
WHITE
J
I
9
WHITE
8
BLACK
38
WHIT E 14 G A.
WHIT E 14 G A.
WHITE 14 GA.
WHITE L2 14 G A.
L2
WHITE L2 14 GA.
WHITE L2 14 GA.
L2
TERMINAL BLOCK #1
BLACK F1 18 GA.
WHITE F2 18 GA.
WHITE L2 18 GA.
25
6
4
7
BLACK L1 18 GA.
5
5
4
BLACK L1 10 GA.BROWN L1 10 GA.
BROWN 14 GA.
ELEMENT CONTACTOR
G R
E
L
E
L
N
O
/
W
BROWN 14 GA.
G2
R
L2
L1
42
C
PROBE
H2
20 AMP
FUSE
38
20 AMP
I2
FUSE
C
PROBE
A
26
F1 5 AMP
F2 5 AMP
BLACK L1 10 GA.
30 AMP
FUSE
A
30 AMP
FUSE
COO L-DOW N THERMOSTAT
H
40
COO L-DOW N THERMOSTAT
14 GA.HI-TEMP
G
F
I
J2
K2
14 GA.HI-TEMP
A
E
18 G A. BRO WN
18 GA.BLUE
BROWN L1 10 GA.
E
G4
SSR 1 SSR 2
30
BROWN JUMPER
TO REMOTE POT
452
UPPERTEMPCONTROL LOWERTEMPCONTROL
18 GA.BROWN
67 8
30
18 GA. GRAY
32
TO
TERMINAL
36
BLOCK #4
18GA. GREEN /YELLOW -GROUND
CONTROL B OX COOLIN G FAN
(AIRPULLED INTOCONTROLBOX)
ITEMS LOCATED ON MAIN CONTROL BOX DOOR
18 GA. GREEN / YELLOW ( MOTOR GROUND )
D
UPPER
ELEMENTS
K
20 AMP
FUSE
LOWER
ELEMENTS
G
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP 14 GA.HI-TEMP
F
C
B
BLUE J
TO REMOTE POT
YEL
ORG
PUR
1 34
91011 67 891011
JJ
26
BROWN
25
18 GA. GRAY
GREEN / YELLO W - G ROUND
G2
14 GA.HI-TEMP
D
BLUE
JUMPER
52 1 3
BLUE
E
SSR 3
28
18 GA. BLUE
PURPLE
BLACK
BLACK
F
27
20 AM P
FUSE
ORANGE
18 GA. BROWN
YELLOW
G3
J
K2
D
34
29
BLUE
29
34
8
18 GA. BLACK
18 GA . WHI TE
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
17
18 GA . BLUE
BLACK
48
BLACK
18 GA . BROW N
18 GA.BROWN
VACUUM SWIT CHES
50
18 GA.BROWN
18 GA . BROW N
UPPER
TEMPERATURE
CONTROL POTS
LOWER
CONVEYOR SPEED POT
18
PURPLE
YELLOW
YELLOW or BLUE
ORANGE
PURPL E
YELLOW
YELLOW orBLUE
ORANGE
G
L2
L1
ITEM S LOC ATED I N JUN CTION BOX
20
20
18 GA. BROWN
BLACK 22 GA. ( 2 PLCS )
-
46
GEARMOTOR
POWER
SUPPLY
3
2
1
REVERSI NG
SWITCH
CONVEYOR GEARMOTOR
10 GA. GREEN G
10 GA. WHITE L2
10 GA. BLACK L1
BLACK 18 GA.
WHITE 18 GA.
L1
L2
BLK
RED 22 GA.
+
WHT
22 G A.
GREEN 22 GA.
ORANGE 22 GA.
POWER
DISTRIBUTION
BLOCK
BLACK 18 GA.
24
CONTAC TOR
39
41
24VD C
OUTPUT
RED
+
---+++
~
RED
BLACK
YELLO W 22 G A.
G
L2
L1
ITEM S LOC ATED IN C ONTROL BOX E NCLOSU RE
14 GA. HI-TEMP J UMPER
REAR EXHAUST FANS
(AIRPUSHEDOUTOFOVEN)
SPLICES
BLACK
BLACK
TO TERMINAL BLOCK #3
G
4
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
CLOCKWIS E ROTATI ON
WHEN LOOKING AT
BACK OF MOTOR
2
4
G
2
3
ITEMS LOCATEDIN BLOWER COMPARTMENT
GREEN (GRO UND)
GREEN (GR OUND)
4
2
1
1
BLACK
SPLICES 4X
B
LACK
18GA. GRAY
33
18GA.
35
GRAY
3
G
TERMINAL BLOCK #2
24
42
24
21
WHITE 18 GA.
BLACK 18 GA.
22
OVER LOAD
RELAY
23
GREEN / YEL LOW ­GROUND
TO
23
31
31
G4
U4165Q
VH1828E Schematic 208, 220 or 240VAC, 50/60Hz, 3 Phase
JUNCTION
BLOCK
CAUTION: L1 & L2 INPUTS MUST BE 200-250 VOLT POTENTIAL.
IF A "HIGH-VOLTAGELEG" GREATERTHAN250 VOLTS IS PRESENT, IT MUST CONNECT TO L3.
MAIN SWITCH MAIN SWITCH
12
14
BROWN
FAN
C
N.O.
16
RELAY
8
10
6
38
A
10 GA. BLACK
E
BROWN
COOL DOWN T/STATS. CLOSE ON TEMP RISE.
-
40
BLACK
A
18
BROWN
48
42
BROWN
VACUUM SWITCHES.
20
CLOSE ON BLOWER VACUUM
TO TERMINAL
BLOCK
BROWN
TO POWER
50
BLOCK
24
B
L
A
C
K
1
L2
WHITE
BLACK
L1
SSR 3
SSR 1
B
SSR 2
CONTACTOR
L1 L2 L3 G
BLACK WHI TE RED GREEN
POWER BLOCK
FUSE
1
L1 L2 L3 G
5AMPS
4
10 GA. BROWN
F
G
3000 WATTS EACH
C
D
OVERLOAD
RELAY
3000 WATTS EACH
BOTTOM ELEMENTS
TOP ELEMENTS
BLACK
BLACK
WHITE
23
21
WHITE
22
BLACK
19
WHITE
FUSE 2 5AMPS
5
RIGHT
LEFT
RIGHT
REAR EXHAUST FANS
4
4
2
LEFT
I
J
H
K
2
GREY
GREY
7
19
COOLING FAN IN CONTROL BOX
14 GA. WHITE
M
N
Q
P
BLACK
BLACK
GREY GREY
1
GREY
9
WHITE
GREY
3
3
GREY
G1
18 GA . GRE EN / YE LLO W ST RIP E
11
C1
C1
14 GA WHITE
C1
R
C1
BLACK
1~
CAP
CCW
GREY
1
1~
CAP
CCW
10 GA. GREEN / YELLOWSTRIPE
19
14 GA BROWN
14 GA WHITE
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
15
BLUE
WHI TE
G
ND
G2
13
G4
GREEN
17
BLUE
G
GRN
GREEN
18 GA . GRE EN / YE LLO W S TRIP E
RED
UPPER TEMPERATURE ADJUSTMENT POTENTIOMETER
LOWER TEMPERATURE ADJUSTMENT POTENTIOMETER
44
C1
INPUT
GEARMOTOR
POWER SUPPLY
43
PURPL E
YELL OW
YELL OWorBLUE
ORANGE
RTD SENSOR
PURPL E
YELL OW
YELL OWorBLUE
ORANGE
RTD SENSOR
BLUE
BROWN
OUTPUT
-
-
-
+
+
+
BLACK ( 2 )
41 39
RED
46
GEARMOTOR
REVERSIN G
SWITCH
UPPER TEMPERATURE CONTROL
3
1
2 5
4
3
1
2 5
4
LOWER TEMPERATURE CONTROL
BLACK
37
+
BLUE
GREEN / YELLOW STRIPE
J
30
J
BROWN
J
BLUE
GEARMOTOR AND SPEED POT
BLUE
C O I L
C O I L
C O I L
25
G2
31
SSR 1
SSR 2
SSR 3
U4167Q
G2
Y
A
G3
GRN / YLW
GRAY
COOLING FAN IN CONTROL BOX DOOR
A
BROWN
29
36
34
ORANGE
YELLOW GREEN
33
GRY
35
GRAY
A
BROWN
WHITE
123
25
26
11 10
9 8
7 6
11 10
9 8
7 6
R
G
32
J
27
28
BRN
BLUE
J
40
41
MAIN
SWITCH
O
l
(ON)
(OFF)
13
18 GA.BLUE
12
18 GA.BROWN
ITEMS LOCATED IN ANGLED CONTRO LB OX
10
18 GA. BLACK
11
18 G A. WHIT E
GRAY
UPPER
A
GRAY
GRAY
LOWER
A
GRAY
18GA. BROWN
18 GA.BROWN
14
16
(AIRPULLEDINTOCONTROLBOX)
TERMINAL BLOCK #4
18 GABLU
15
N.O.
C
COOL-DO WN RELAY
COOLING F AN
VH1828E Wiring Diagram 208, 220 or 240VAC, 50/60Hz, 3 Phase
WHITE 18 GA.
G1
OVER LOAD
RELAY
44
RED 22 GA.
GREEN 10 GA.
A
GROUND SCREW
Y
E L
L
23
BLUE 18 GA.
BLUE 18 GA.
31
31
38
26
F1 5 AMP
F2 5 AMP
PROBE
BROWN L3 10 GA.
BLACK L 1 10 GA.
42
C
COOL -DOWN
THERMOSTAT
D
UPPER
H
40
14GA. HI-TEMP
I
J
K
C
PROBE
A
E
18 G A. BRO WN
18 GA.BLUE
TERMINAL BLOCK #4
E
A
G4
ELEMENTS
COOL -DOWN
THERMOSTAT
LOWER
ELEMENTS
G
G
F
14 GA.HI-TEMP
A
30
TO REMOTE POT
452
UPP ER TE MP CON TROL LO WER TE MP CON TROL
18 GA.BROWN
67 8
30
18 GA. GRAY
32
TO
36
18 GA. GREEN / YELLOW - GROUND
CONTROL BO X COOLING F AN
( AIR PULLED INTO CONTR OL BOX )
ITEMS LOCATED ON MAIN CONTROL BOX D OOR
18 GA. GREEN / YELLOW ( MOTOR G ROUND)
14 GA.HI-TEMP 14 GA.HI-TEMP
14 GA.HI-TEMP 14 GA.HI-TEMP
F
14 GA.HI-TEMP
C
D
B
SSR 1 SSR 2
BLUE
BLUE J
BROWN JUMPER
JJ
26
JUMPER
TO REMOTE POT
YEL
ORG
PUR
1 34
91011 67 891011
BROWN
25
BLUE
18 GA.GRAY
GREEN / YELLOW - GROUND
G2
F
E
SSR 3
18 GA.BLUE
PURPLE
52 1 3
28
27
BLACK
BLACK
ORANGE
18G A.BROWN
YELLOW
G3
K
J
K
D
34
29
BLUE
29
34
ITEMSLOCATED IN BLOWER COMPARTMENT
21
22
WHITE 18 GA.
19
BLACK 18 GA.
BLOCK #2
BLOWER MOTORS
TO
TERMINAL
WHITE 18 GA.
L1
L2
18 GA. BLA CK 18 GA.WHITE 18 GA.BLUE 18 GA.BROWN
37
43
BLUE
BROWN
Q
L2
WHITE
BLACK 22 GA.
P
WHITE
N
BLUE 18 GA.
14 GA. HIGH TEMP
8
9
17
18
BROWN
BLUE
H
K
M
WHITE
J
I
9
WHITE
8
BLACK
38
WHIT E 1 4 GA.
WHIT E 1 4 GA.
WHITE 14 GA.
BROWN 14 GA.
ELEMENT CONTACTOR
G R
E
E
N
O
/
W
BROWN 14 GA.
G2
R
L2
L1
(L1 )
TERMINAL BLOCK #1
25
6
BLACK F1 18 GA .
WHITE F2 18 GA.
WHITE L2 14 GA.
WHITE L2 14 GA.
WHITE L2 14 GA.
E (L3 )
L2
L2
WHITE L2 18 G A.
4
7
5
BLACK L1 1 8 GA.
5
4
8
18G A. BLACK
18 GA. WHI TE
9
TO
32
TEMP
CONTROLS
33
36
TO
TERMINAL
35
BLOCK #2
17
18 GA. BLU E
48
18 GA.BROWN
18 GA. BR OWN
18 GA.BROWN
BLACK
BLACK
UPPER
PURPLE
YELLOW
YELLOW or BLUE
ORANGE
TEMPERATURE
CONTROL POTS
YELLOW
YELLOW orBLUE
LOWER
CONVEYOR SPEED POT
ORANGE
VACUUM SWITCHES
50
18 GA. BR OWN
G
L3
L2
L1
ITEMS LOCATED I N JUNCTION BOX
BLACK 18 GA.
24
18G A.BROWN
20
CONTAC TOR
BLACK 18 G A.
WHITE 18 GA.
L1
L2
39
41
BLACK22 GA. ( 2 PLCS )
-
46
GEARMOTOR
18
POWER
SUPPLY
20
3
BLK
2
1
WHT
REVERSING
SWITCH
PURPL E
CONVEYOR GEARMOTOR
+
22 GA .
GREEN 22 GA.
ORAN GE 22 G A.
---+++
~
RED 22 GA.
24VD C
OUTPUT
RED
+
YELLO W 22 GA.
RED
BLACK
POWER
DISTRIBUTION
10 GA. GREEN G
10 GA. RED L3
10 GA. WHITE L2
10 GA. BLACK L1
BLOCK
G
L3
L2
L1
ITEMS L OCATED IN CON TROL BOX ENCL OSURE
REAR EXHAUST FANS
(AIRPUSHEDOUTOFOVEN)
SPLICES
UPPER BLOWER MOTOR
LOWER BLOWER MOTOR
CLOCKWIS E ROTATION
WHEN LOOKING AT
BACK OF MOTOR
14 GA. HI- TEMP JUM PER
TO TERMINAL BLOCK #3
G
G
BLACK
BLACK
GREEN (GROUND)
GREEN (GR OUND)
4
2
4
1
4
2
3
1
33
35
2
3
BLACK
SPLICES 4X
B
LACK
18GA. GRAY
18GA. GRAY
TERMINAL BLOCK #2
23
24
31
42
24
23
31
G4
GREEN /
G
YELL OW ­GROUND
21
WHITE 18 GA.
BLACK18 GA.
22
TO
OVER LOAD
RELAY
U4167Q
20. PARTS LISTS & EXPLODED VIEWS
42
Figure A External Covers
Figure B Conveyor Assembly
2
7
6
5
7
9
4
6
8
5
4
9
3
2
10
3
12
1
10
11
2
1
11
Item Part Number
1620E 1828E
1 S3255A S3255A Hanger Pin (For Item #2) 4 2 B6539K B6051K Adjustable Baffle 2 3 Q1499A Q1499A Lock Nut (For Item #1) 4 4 B6535U B6037U Outer Lower Cover, Right 1 5 Q4043A Q4043A 1/4 Turn Fastener 8 6 B6536U B6038U Outer Upper Cover, Right 1 7 Q4044A Q4044A Retaining Ring (For Item #5) 8 8 B6538U B6038U Outer Upper Cover, Left 1 9 B6537U B6037U Outer Lower Cover, Left 1
10 B6584T B6260T Hinged Door Assy 1 11 S3256A S3256A Door Handle 2
Description
Quan
Item Part Number
1620E 1828E
1 B6546T B7227T 2 S3268U S3266U 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 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
Description
Complete conveyor assy with wire belt Idler shaft assy (complete w/sprockets)
Drive shaft assy (complete w/sprockets)
Quan
1 2
1
Figure C Blower Motor Cover Assembly
Figure D Blower Assembly
1
3
4
Item Part Number
1620E 1828E
1 B6565U B6219U Rear Blower Motor Cover 1 2 M1504A M1504A Fan Guard 4 3 M1532A M1532A Large Axial Fan 220/240V 4 4 P6470A P6470A Fan Cord Assy 2 5 S1392A S1392A Rubber Bumper (Rear Exterior) 4
43
Description
Figure E VH Series Ovens Only
1
5
Quan
3
4
5
6
2
2
1
Item Part Number
1620E 1828E
1 M1541U M1537U Complete Blower Assy, VH, 1 or 3 Ph 1 2
M1542U M1511U Complete Blower Assy, VHVA, 1 or 3 Ph 1
3
M1515A M1510A Main Blower Wheel 1
4
S3260A S3260A Minor Wheel (Heat Slinger) 2
5
M1548A M1548A Blower Motor, 1/4 HP, VH, 1 or 3 Ph 2
6
M1511A M1511A Blower Motor, 1/4 HP, VHVA, 1 or 3 Ph 2
Description
All Components Shown
Quan
Figure F Plenum Finger Assembly
3
2
1
4
3
Item Part Number
1620E 1828E
1 B6086U B6086U Mount Bracket Assy 1 2 P1150A P1150A DN Rail 1 3 M1378A M1378A Contactor 1 4 M1379A M1379A Overload Relay
2
Description
Quan
1
4
Item Part Number
1620E 1828E
1 B6529T B6221T Complete Plenum "Finger" Assy (Items 2, 3 & 4) 4 2 B6531K B6225K Outer "Perforated" Panel 4 3 B6532K B6226K Inner Perforated Panel 4 4 B6530U B6222U Main Body Panel 4
Description
Quan
Figure G Main Power Control Box
Item Part Number
1620E 1828E
1 B6562T 2 B6562U 3 B6564T 4 B6564U 5 S3262A 6 B6074U 7 S3263A 8 M1501A
9 P1175A 10 M1538A 11 P1064A 12 P1190A 13 M1307A 14 B6079K 15 P1170A 16 M1517A 17 M1525A 18 M1500A 19 M1235A 20 M1521A 21 M1524A 22 M1378A 23 U1061A 24 B6073U 25 M1529A 26 M1513A 27 N/A 28 N/A 29 N/A 30 N/A 31 P6486A 32 P6469A 33 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
Not Shown
Description
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
Quan
1 1 1 1 1 1 1 1
1or2
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
3
5
2
6
9
19
8
7
4
18
13
1
Item Part Number
208 Volt 240 Volt VH VHVA
1 M1352A 2 P1171A 3 S1205A 4 M1519A 5 M1531A 6 M1505A 7 M1533A 8 P1170A
9 M1524A 10 M1235A 11 B6237T 12 B6237U 13 B6236U 14 U1370A 15 U1366A 16 U1369A 17 U1365A 18 N/A 19 N/A
M1352A
P1171A
S1205A M1519A M1531A M1505A M1535A
P1170A M1524A M1235A
B6237T
B6237U
B6236U
U1370A
U1366A
U1369A
U1365A
P1008A
P1007A
14
10
15
16
17
Description
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)
11
12
Quan
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
45
Figure I Cool-Down Thermostat, Elements, Switch & Probe
4
3
2
3
4
1
Item
Model 1620E Model 1828E
208V 220V 230V 240V 208V 220V 230V 240V
1 M1518A M1518A M1518A M1518A M1518A M1518A M1518A M1518A TemperatureSensor Probe 2
L1181A L1189A L1207A L1183A L1185A L1191A L1209A L1187A Heating Element, Left Hand 2
2
L1182A L1190A L1208A L1184A L1186A L1192A L1210A L1188A Heating Element, Right Hand 2
3
M1534A M1534A M1534A M1534A M1534A M1534A M1534A M1534A Cool-Down Thermostat 2
4
Part Number
Description
2
Quan
46
BAKERS PRIDE LIMITED WARRANTY
21.
914 / 576 - 0200 US & Canada: 1 - 800 - 431 - 2745 fax 914 / 576 - 0605
30 Pine Street New Rochelle, New York 10801
WHATIS COVERED This warranty covers defects in material and workmanship under normal use, and applies only to the original purchaser
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:
WARRANTY COVERAGE for all
EXCEPTIONS All removable parts in BAKERS PRIDE Char-broilers, including but not limited to: Burners, Grates, Radiants, Stones and
EXCLUSIONS
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,
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 providedwith the product; The serial number rating plate affixed to the equipment hasnot been defaced or removed.
!
and labor; CO11 Models: All Other Products:One (1) Yearlimited 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.
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 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.
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.
BCO Models: One (1) Year limited parts and labor; GDCO Models: Two (2) Year limited parts
Two (2) Year limited parts and labor; (5) Yearlimited door warranty.
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.
INSTALLATION Leveling and installation of decks, as well as proper installation and check out of all new equipment per appropriate
REPLACEMENT BAKERS PRIDE genuine Factory OEM parts receive a (90) day materials warranty effective from the date of PARTS BAKERSPRIDE FactoryAuthorized 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.
installation and use materials is the responsibility of the dealer or installer,not the manufacturer.
installation by a
1/03
4/02
47
F.
BAKERS
PRIDE
BAKERS PRIDE OVEN CO., INC
30 Pine Street
New Rochelle, NY 10801 (914) 576-0200 Phone (800) 431-2745 US & Canada (914) 576-0605 Fax www.bakerspride.com Web Address
48
.
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