Alto-Shaam VMC-H2 Operator's Manual
Vector h-series
multi-cook oven
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Summary of Contents for Alto-Shaam VMC-H2
- Page 1 Service Manual Vector™ Multi-Cook Oven VMC-H2 VMC-H2H VMC-H3 VMC-H3H VMC-H4 VMC-H4H Structured Air Technology™ MN-39158 REV.01 6/17 alto-shaam.com...
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Page 2: Manufacturer's Information
© Copyright 6/17 by Alto-Shaam, Inc. All rights reserved. This manual or any portion thereof may not be reproduced or used in any manner whatsoever without the express written permission of Alto-Shaam, Inc. Trademarks All trademarks referenced in this documentation are the property of their respective owners. -
Page 3: Foreword
Call 800-558-8744 to reach our 24-hour emergency service call center for immediate access to local authorized service agencies outside standard business hours. The emergency service access is provided exclusively for Alto-Shaam equipment and is available throughout the United States through Alto-Shaam’s toll free number. - Page 4 OREWORD Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 5: Table Of Contents
Manufacturer’s Information ......2 Foreword Alto-Shaam 24/7 Emergency Repair Service ....3 Table of Contents Safety The Meaning of Signal Words . - Page 6 Schematics VMC-H2 / VMC-H2H......77 VMC-H3 / VMC-H3H......78 VMC-H4 / VMC-H4H.
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Page 7: Safety
AFETY The Meaning of Signal Words Technical content produced by Alto-Shaam contains signal words where needed. These signal words must be obeyed to reduce the risk of death, personal injury, or equipment damage. The meaning of these signal words is explained below. -
Page 8: Safety Precautions
AFETY Safety Precautions Before you begin Read and understand all instructions in this manual. Electrical precautions Follow these precautions while using the appliance: Connect the appliance to a properly grounded outlet. Do not use the appliance if ▪ it is not properly grounded. Consult an electrician if there is any doubt that the outlet used is properly grounded. - Page 9 Alto-Shaam of all liability. To prevent serious injury, death or property damage, the appliance should be ▪...
- Page 10 AFETY Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 11: Operation
PERATION How to Turn On and Turn Off the Oven Before you begin The oven must be connected to electric power. Turning ON the oven To turn on the oven, do the following. Step Action the main disconnect switch to the ON position. Press the ON/OFF button . -
Page 12: How To Update The Interface Board (Ib)
PERATION How to Update the Interface Board (IB) Before you begin You’ll need a USB stick with the updated firmware. ▪ Make sure the oven is cool. ▪ Procedure To update the interface board, do the following. Step Action Touch the gear icon . - Page 13 PERATION Continued from previous page Touch the “Update IB” icon The “Select IB File” screen appears. Touch the desired firmware file for your particular oven—choose by oven size. The oven loads the selected firmware. USB Functions Select IB File elect IB File Select file name of IB elect file name of IB firmware to load...
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Page 14: How To Update The Control Board (Cb)
PERATION How to Update the Control Board (CB) Before you begin You’ll need a USB stick with the updated firmware. ▪ Make sure the oven is cool. ▪ Procedure To update the control board, do the following. Step Action Touch the gear icon . - Page 15 PERATION Continued from previous page Touch the “Update CB” icon The “Select CB File” screen appears. Touch the desired firmware file for your particular oven—choose by oven size. The oven loads the selected firmware. Select CB File elect CB File USB Functions Select file name of IB elect file name of IB...
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Page 16: How To Load Config Files
PERATION How to Load Config Files Before you begin You’ll need a USB stick with the config files. Procedure Config files are used to load the oven’s menu. To load a menu to the oven, do the following. Step Action Touch the gear icon . - Page 17 PERATION Continued from previous page Plug the USB stick into the port VMC-TS-001581 Touch the “Load Config” icon . The “Select Config File” screen appears. Touch the config file USB Functions L L oad Config Config Select Config File Select file name of config elect file name of config file to load file to load...
- Page 18 PERATION Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 19: Components
OMPONENTS Component Identification Vecto r™ H-Se ries S e rv i c e M a nu a l MN-39 158 Rev 01 6/17... -
Page 20: Cavity Identification
OMPONENTS Cavity Identification Components will be identified in accordance with the cavity numbering illustrated here. VMC-PHD-001875 Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 21: Front Panel Identification
OMPONENTS Front Panel Identification ON/OFF Button Control Panel USB Port Display Check Fans Indicator Light VMC-PHD-001879 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... -
Page 22: Back Panel Identification
OMPONENTS Back Panel Identification Cooling Fans/Filters Main Disconnect Switch Electrical Supply Cooling Fans/Filters VMC-PHD-001883 Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 23: Component Access Panels Identification
OMPONENTS Component Access Panels Identification Top service panel, electrical Circuit breaker components service panel Right service panel, Left service panel, blower motors, heating elements, cooling fans catalyst, thermocouples VMC-PHD-001887 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... -
Page 24: H4-Electrical Component Identification
OMPONENTS H4—Electrical Component Identification VMC-PHD-001891 Ref. Description Ref. Description Check fans indicator light switch 12VDC power supply Terminal boards Terminal boards Main disconnect switch Interface board Circuit breakers (heating Control board elements) Variable frequency drive (VFD) Relays Solid state relay (SSR) Circuit breakers (control) 12VAC transformer —... -
Page 25: H3-Electrical Component Identification
OMPONENTS H3—Electrical Component Identification VMC-PHD-001895 Ref. Description Ref. Description Check fans indicator light switch 12VDC power supply Terminal boards Terminal boards Main disconnect switch Interface board Circuit breakers (heating Control board elements) Variable frequency drive (VFD) Relays Solid state relay (SSR) Circuit breakers (control) 12VAC transformer —... -
Page 26: H2-Electrical Component Identification
OMPONENTS H2—Electrical Component Identification VMC-PHD-001899 Ref. Description Ref. Description Check fans indicator light switch 12VDC power supply Terminal boards Terminal boards Main disconnect switch Interface board Circuit breakers (heating Control board elements) Variable frequency drive (VFD) Relays Solid state relay (SSR) Circuit breakers (control) 12VAC transformer —... -
Page 27: Electrical Components
OMPONENTS Electrical Components Check Fans Indicator Light Switch The contacts close at or above 130°F / 54°C ▪ VMC-PHD-001903 Terminal Boards VMC-PHD-001907 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... -
Page 28: Main Disconnect Switch
OMPONENTS Main Disconnect Switch VMC-PHD-001911 Circuit Breakers (Heating Elements) Cavity 1 Cavity 1 Cavity 2 Cavity 2 Cavity 3 Cavity 3 Cavity 4 Cavity 1 Cavity 2 VMC-PHD-001915 Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 29: Variable Frequency Drive (Vfd)
OMPONENTS Variable Frequency Drive (VFD) WARNING: This equipment contains dangerous voltages. There are no serviceable parts inside of the VFD. VMC-PHD-001919 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... -
Page 30: Solid State Relay (Ssr)
OMPONENTS Solid State Relay (SSR) Heater element control. One SSR for each cavity. T1 terminal, AC load L1 terminal, AC line voltage to the heating voltage into the SSR element Call for heat indicator light A2 (-) terminal, DC A2 (+) terminal, DC control voltage from control voltage from the control board to... -
Page 31: 12Vac Transformer
OMPONENTS 12VAC Transformer The transformer provides a voltage signal to the control board. The signal allows the control board to determine the incoming line voltage. Primary: 1700 Ohms ▪ Secondary: 6 Ohms ▪ 240 VAC VMC-PHD-001927 12VDC Power Supply DC voltage to the control board and the ON/OFF switch. 12VDC terminals 12VDC adjustment Vo Adj... -
Page 32: Interface Board
OMPONENTS Terminal Boards (switched) Ground VMC-PHD-001939 Interface Board VMC-PHD-001943 Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 33: Control Board
OMPONENTS Control Board VMC-PHD-001947 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... - Page 34 OMPONENTS Relays Normally open terminal Common terminal H3 only AZ22 AZ22, 12 volt DC coil Coil T9C, 240 volt AC coil terminals Blowers/fan Input to the control Coil - 155 ohm board for the check fan indicator light Coil - 10.90 K Ohm Normally Normally open...
- Page 35 OMPONENTS Circuit Breakers (Control) VMC-PHD-001955 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17...
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Page 36: Left Service Panel Identification
OMPONENTS Left Service Panel Identification VMC-PHD-001963 Ref. Description Cavity heating element Catalyst High limits Cavity air temperature probe Speaker Door Switch Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 37: Left Service Panel Components
OMPONENTS Left Service Panel Components Cavity Heating Element 18 Ohms VMC-PHD-001979 Catalyst VMC-PHD-001983 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... - Page 38 OMPONENTS High Limits Resettable Contacts open at 572°F / 300°C Reset button Temperature bulb VMC-PHD-001987 Cavity Air Temperature Probe K Type Thermocouple 100°C 4.096 MV 100°F 1.521 MV 200°C 8.138 MV 200°F 3.820 MV 300°C 12.209 MV 300°F 6.094 MV VMC-PHD-001991 Ve ctor ™...
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Page 39: Door Switch
OMPONENTS Speaker 8 Ohms VMC-PHD-001995 Door Switch Door closed - 0 Ohms - 0 VDC across terminals 1 and 2 of connector P3 on the ▪ control board. Door open - Infinite Ohms - 8 VDC across terminals 1 and 2 of connector P3 on ▪... -
Page 40: Right Service Panel Identification
OMPONENTS Right Service Panel Identification VMC-PHD-002003 Ref. Description Blower motor Fans Filter—cooling air Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 41: Right Service Panel Components
OMPONENTS Right Service Panel Components Blower Motor 4.3 Ohms VMC-PHD-002007 Fans Impedance protected ▪ 240 Volt ▪ 581 Ohm ▪ VMC-PHD-002011 Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... - Page 42 OMPONENTS Filter—Cooling Air VMC-PHD-002015 Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 43: Internal Components Identification
OMPONENTS Internal Components Identification VMC-PHD-002019 Ref. Description Cavity light Filters Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... -
Page 44: Internal Components
OMPONENTS Internal Components Cavity Light 12 VDC VMC-PHD-002023 Filters VMC-PHD-002027 Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 45: Theory
HEORY Standby State Background The main disconnect switch is in the ON position, the display is not illuminated. CAUTION: Voltage is present at the following components: n blocks •Distributio Circuit breakers • Heater elements, one wire on each element • Check indicator light •... -
Page 46: On State
HEORY On State Background The main disconnect switch is in the ON position, the display is illuminated. The logo will appear along with the firmware versions on the display. After five seconds, the LCD will display the home screen. CAUTION: Voltage is present at the following components: n blocks •Distributio... -
Page 47: Warm-Up State
HEORY Warm-Up State Background Pressing “Warm Up” will automatically begin warming all cavities up to their pre- programmed default temperature setpoints. It should take approximately 10-15 minutes for the oven to reach temperature. The “Temps” icon in the User Configuration screen allows the user to change the individual cavity preheat temperatures. -
Page 48: Idle State
HEORY Idle State Background As each cavity reaches its temperature setpoint, it will start a 5 minute countdown to allow the cavity temperature to stabilize. The cavity blower fans are driven at 30% rotation speed by the VFDs. Component State Control panel LCD backlight Heaters... -
Page 49: Cooking State
HEORY Cooking State Background Each cavity is independently controlled. The current cavity is indicated by the red check mark on the display. Opening the door will pause the cook. The oven will keep track of how long the door is open and automatically add time to any current cooks to compensate for the temperature loss. -
Page 50: Cooking State Complete
HEORY Cooking State Complete Background At the end of the cook, the oven buzzer/speaker will sound an alert and the cavity light will flash. The cavity blower fans are driven at 30% rotation speed by the VFDs. Component State Control panel LCD backlight Heaters ON, maintaining the temperature setpoint... -
Page 51: Rapid On/Off State
HEORY Rapid ON/OFF State Background Each cavity will transition to the rapid ON/OFF state if the cavity temperature is greater than 20°F away from the temperature setpoint. The cavity blower fans are driven at 70% rotation speed by the VFDs. Component State Control panel... -
Page 52: Cool Down State
HEORY Cool Down State Background The oven will automatically turn on the blowers for the cool down process. The oven will take roughly 2 hours to cool down to a cavity temperature of 140°F with the door open. The screen will display a cool down prompt and ask for the door to be opened. The oven will shut down once the cool down is complete. -
Page 53: Cool Down State Complete
HEORY Cool Down State Complete Background The oven transitions to the OFF state after 20 minutes. Component State Control panel LCD backlight Heaters Cooling fans Blower Buzzer / speaker Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... - Page 54 HEORY Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 55: Maintenance
AINTENANCE Maintenance Schedule Daily Before cleaning, ensure the oven is cooled down and off (inside of cavity will be 140°F or less). Remove any spills with disposable paper wipes or a damp cloth. Wipe the outside of the oven with a damp cloth. Use stainless steel cleaner on the outside of the oven for a nice shine to finish off daily cleaning activities. -
Page 56: How To Clean The Oven
AINTENANCE How to Clean the Oven Caution CAUTION: Burn hazard. The oven, utensils, and racks become hot during use. Allow the oven, utensils, and racks to cool before cleaning. Wear eye protection and hand protection when cleaning. NOTICE Using improper cleaning procedures could damage the catalyst and void the warranty. -
Page 57: Weekly Cleaning
AINTENANCE Continued from previous page Weekly cleaning To clean the oven weekly, do the following. procedure Step Action the main disconnect switch to the OFF position. VMC-TS-001426 Spray the exterior areas of the oven with EcoLab Greaselift or Chemco Dirt Buster III oven cleaner. - Page 58 AINTENANCE Continued from previous page Monthly cleaning To clean the oven monthly, do the following. procedure Step Action the main disconnect switch to the OFF position. Remove the jet plates and cook racks CAUTION: Personal injury hazard. The jet plates may have sharp edges.
- Page 59 AINTENANCE Continued from previous page Cleaning the filters Remove the filters VMC-TS-001590 Clean the filters in a dishwasher. NOTE: Replace the filters at least once a year. Re-install the filters. the main disconnect switch to the ON position if complete. Result The oven is now clean.
- Page 60 AINTENANCE Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 61: Troubleshooting
ROUBLESHOOTING The Oven will not Power Up Before troubleshooting a will not power up condition, remove the circuit breaker service panel on the left side of the oven. Move the circuit breakers to the OFF position. Then, move the circuit breakers to the ON position. -
Page 62: The Oven Will Not Power Up Cont
ROUBLESHOOTING Continued from previous page The Oven will not Power Up Cont. Decision Action Measure the voltage across L1 and L2 Repair or replace the terminals at the power wiring from the circuit supply. Does the breakers to the power voltage correspond to supply the voltage printed on... -
Page 63: The Cavities Will Not Heat
ROUBLESHOOTING The Cavities will not Heat Before troubleshooting a no heat condition, locate the temperature high limits and reset any tripped high limit as required. Locate the circuit breakers and reset any tripped circuit breaker as required. This troubleshooting is divided into two sections, section 1. Heating element control voltage troubleshooting, section 2. - Page 64 ROUBLESHOOTING Continued from previous page The heating elements require two phases of line voltage to operate. One phase originates at the main disconnect switch and is connected through a terminal board and then directly to the heating element. The second phase originates at the main disconnect switch and is connected through a terminal board, circuit breaker, cavity high limit and then to a solid state relay (SSR).
- Page 65 ROUBLESHOOTING Continued from previous page At the main disconnect switch place the one meter lead on the phase that connects direclty to the heating Reset or replace element. Place the second meter lead onto the load the circuit side terminal of the circuit breaker for the phase that breaker.
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Page 66: Cavity Blower Fans Inoperable
ROUBLESHOOTING Cavity Blower Fans Inoperable Before troubleshooting an inoperable blower fan, the cavity(ies) must be in a cook or warm up mode. Locate the circuit breakers and reset any tripped circuit breaker as required. Decision Action Is LED 2 on the control board illuminated? Replace the control board. - Page 67 ROUBLESHOOTING Continued from previous page Decision Action Confirm the Secure the wires green/yellow, as required. white and black wires from the VFD are connected securely in the terminal boards. Are the wires securely connected in the terminal boards? Measure the DC voltage across the yellow and Swap the inoperable...
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Page 68: Cavity Lights Will Not Illuminate
ROUBLESHOOTING Cavity Lights will not Illuminate Decision Action Is the door open? Open the door. Measure DC voltage at Check the wiring the + and – terminals from the power of connector P6 on the supply to the control board. Is the control board. -
Page 69: The Check Fan Indicator Light Is Illuminated
ROUBLESHOOTING The Check Fan Indicator Light is Illuminated Before troubleshooting the cause of the fan indicator light illumination, the oven must be in a cook or warm up mode. Action Decision Test the operation of the thermal switch. Replace the thermal The indicator light Do the contacts open switch. - Page 70 ROUBLESHOOTING Continued from previous page Decision Action Measure AC voltage across Repair or replace the common terminal at the the wires Blowers/Fan relay and L1. fromTB2-L2 to the Does the voltage correspond Blowers/Fan to the voltage printed on the relay. serial number tag? Measure AC voltage across the normally open terminal...
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Page 71: The Cooling Fan(S) Are Inoperable
ROUBLESHOOTING The Cooling Fan(s) are Inoperable Before troubleshooting the cause of an inoperable fan, the oven must be in a cook or warm up mode. Decision Action Is LED2 on the control board illuminated Replace the control board. Measure the DC voltage across terminals Replace the control board. - Page 72 ROUBLESHOOTING Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17...
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Page 73: Assembly/Disassembly
SSEMBLY ISASSEMBLY Removing and Installing the Blower Motor Before you begin The oven must be disconnected from electric power. ▪ Have a replacement blower motor. ▪ Procedure To remove and install the blower motor, do the following. WARNING: Electric shock hazard. Disconnect the oven from electric power before servicing the oven. - Page 74 SSEMBLY ISASSEMBLY Continued from previous page Cut the insulation around the motor. Remove the three mounting screws. Removing and Installing the Blower Motor_3 Remove the motor and blower wheel from the housing. Install the new motor. Tape all seams in the insulation. Removing and Installing the Blower Motor_4 Re-install the three mounting screws.
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Page 75: Removing And Installing A Heater Element
SSEMBLY ISASSEMBLY Removing and Installing a Heater Element Before you begin The oven must be disconnected from electric power. ▪ Have a replacement heater element. ▪ Procedure To remove and install a heater element, do the following. WARNING: Electric shock hazard. Disconnect the oven from electric power before servicing the oven. - Page 76 SSEMBLY ISASSEMBLY Continued from previous page Cut the insulation around the heater element panel. Move the insulation away from the heater element panel. Remove the screws securing the heater element panel. Removing and Installing a Heater Element_3 Remove the heater element from the oven. Install the new heater element into the oven.
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Page 77: Schematics
CHEMATICS VMC-H2 / VMC-H2H Vecto r™ H-Se ries S e rv i c e M a nu a l MN-39 158 Rev 01 6/17... -
Page 78: Vmc-H3 / Vmc-H3H
CHEMATICS VMC-H3 / VMC-H3H Ve ctor ™ H-Ser ie s S er vi c e Man u a l MN-3915 8 Re v 01 6 /17... -
Page 79: Vmc-H4 / Vmc-H4H
CHEMATICS VMC-H4 / VMC-H4H Vecto r™ H-Se ries S e rv i c e M a nu a l MN -39 158 Rev 01 6/17... - Page 80 Vector...
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