Cascade TEK TVO-2-A User manual

Vacuum Automation Ovens TVO-2-A TVO-2-2-A TVO-5-A TVO-5-2-A
Installation and Operation Manual

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The TVO-2-A and TVO-5-A ovens require a 110 – 120-volt power outlet.
The TVO-2-2-A and TVO-5-2-A ovens require a 220 – 240 volt power outlet.
Warning:This product contains chemicals, including triglycidyl isocyanurate, known to the State of
California to cause cancer as well as birth defects or other reproductive harm. For more information,
go to www.P65Warnings.ca.gov.
¡Advertencia! Este producto contiene sustancias químicas, incluido el triglicidil isocianurato, que el
estado de California sabe que causa cáncer, así como defectos de nacimiento u otros daños
reproductivos. Para obtener más información, visite www.P65Warnings.ca.gov.
Avertissement!Ce produit peut vous exposer à des produits chimiques, dont l'isocyanurate de
triglycidyle, reconnu par l'État de Californie pour provoquer le cancer, des anomalies congénitales
ou d'autres problèmes de reproduction. Pour plus d'informations, visitez le site
www.P65Warnings.ca.gov.
Standard
CEE7/7
wall socket
Standard
NEMA 6-15R
wall socket
Standard
NEMA 5-15R
wall socket

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Vacuum Automation Ovens
TVO-2-A, TVO-5-A: 110 – 120 Voltage
TVO-2-2-A, TVO-5-2-A: 220 – 240 Voltage
Part Number (Manual): 4861800
Revision: November 15, 2021
Cascade TEK Part ID Numbers:
Model TVO-2-A TVO-2-2-A TVO-5-A TVO-5-2-A
Part ID CTVA222 CTVA222-EA CTVA522 CTVA522-EA
The Part ID denotes the specific build version of the model.
Cascade TEK Solutions, LLC is an ISO 9001 certified manufacturer.
Safety Certifications
These units are CUE listed by TÜV SÜD as vacuum ovens for professional, industrial or educational
use where the preparation or testing of materials is done at an ambient air pressure range of 22.14 –
31.3 inHg (75 – 106 kPa), and no flammable, volatile or combustible materials are being heated.
These units have been tested to the following requirements:
CAN/CSA C22.2 No. 61010-1:2012
CAN/CSA C22.2 No. 61010-2-010:2015
UL 61010-1:2012
UL 61010-2-010:2015
EN 61010-1:2010
EN 61010-2-010:2014

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TABLE OF CONTENTS
INTRODUCTION .........................................................................................................................................................7
Read this Manual.................................................................................................................................................................... 7
Safety Considerations and Requirements ...................................................................................................................... 7
Contacting Assistance ..........................................................................................................................................................8
Manufacturing Warranty ......................................................................................................................................................8
Engineering Improvements..................................................................................................................................................8
Vacuum Supply Requirements ...........................................................................................................................................9
Compressed Air Supply Required ................................................................................................................................... 10
Oven Chamber Gaskets...................................................................................................................................................... 11
RECEIVING YOUR OVEN ........................................................................................................................................13
Inspect the Shipment........................................................................................................................................................... 13
Orientation Images .............................................................................................................................................................. 14
Dimension Visuals................................................................................................................................................................ 18
Record the Data Plate Information................................................................................................................................. 20
INSTALLATION .........................................................................................................................................................21
Installation Procedures Checklist .................................................................................................................................... 21
Required Ambient Conditions.......................................................................................................................................... 22
Required Clearances.......................................................................................................................................................... 22
Power Source Requirements 110 – 120 Volts .............................................................................................................. 23
Power Source Requirements 220 – 240 Volts ........................................................................................................... 24
Lifting and Handling ........................................................................................................................................................... 25
Leveling.................................................................................................................................................................................. 25
Install the Oven .................................................................................................................................................................... 26
Installation Cleaning........................................................................................................................................................... 26
Shelving Installation.............................................................................................................................................................27
Connect to the Vacuum and Gas Supplies.................................................................................................................. 29
GRAPHIC SYMBOLS ................................................................................................................................................31
CONTROL OVERVIEW ............................................................................................................................................ 33
OPERATION.............................................................................................................................................................. 35
Operating Precautions....................................................................................................................................................... 35
Theory of Operation ........................................................................................................................................................... 36
Put the Oven into Operation ............................................................................................................................................ 38
Set the High Temperature Limit...................................................................................................................................... 40
Evacuating and Backfilling the Oven Chamber .......................................................................................................... 41
Setting the Constant Temperature Setpoint ............................................................................................................... 43
Temperature Programs ..................................................................................................................................................... 43
High Temperature Limit Activated ................................................................................................................................. 44
Changing the Unit of Measurement............................................................................................................................... 45
Data Ports.............................................................................................................................................................................. 46
Oven Cooldowns ................................................................................................................................................................. 46
OPERATOR MAINTENANCE.................................................................................................................................. 47
Cleaning..................................................................................................................................................................................47
Maintaining Atmospheric Integrity ................................................................................................................................. 48
Electrical Components....................................................................................................................................................... 48
Vacuum Pump Maintenance............................................................................................................................................ 48
Storage................................................................................................................................................................................... 48
Heating Issues — Diagnostic Questionnaire............................................................................................................... 49
Vacuum Leak Issues – Diagnostic Questionnaire..................................................................................................... 54
UNIT SPECIFICATIONS ...........................................................................................................................................61
Weight...................................................................................................................................................................................... 61
Dimensions............................................................................................................................................................................. 61
Capacity .................................................................................................................................................................................. 61
Shelf Capacity by Weight................................................................................................................................................... 61

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Vacuum .................................................................................................................................................................................. 62
Temperature ......................................................................................................................................................................... 62
Power...................................................................................................................................................................................... 62
PARTS LIST............................................................................................................................................................... 63
Replacement Gaskets........................................................................................................................................................ 64

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INTRODUCTION
Thank you for purchasing a Cascade TEK oven. We know you have many choices in today’s
competitive marketplace when it comes to constant temperature equipment. We appreciate you
choosing ours. We stand behind our products and will be here if you need us.
READ THIS MANUAL
Failure to follow the guidelines and instructions in this operator manual may create a protection
impairment by disabling or interfering with the unit safety features. This can result in injury or death.
Before using the unit, read the manual in its entirety to understand how to install, operate, and
maintain the unit in a safe manner. Keep this manual available for use by all operators. Ensure all
operators are given appropriate training before the unit begins service.
SAFETY CONSIDERATIONS AND REQUIREMENTS
Follow basic safety precautions, including all national laws, regulations, and local ordinances in your
area regarding the use of this unit. If you have any questions about local requirements, please
contact the appropriate agencies.
SOPs
Because of the range of potential applications this unit can be used for, the operator or their
supervisors must draw up a site-specific standard operating procedure (SOP) covering each
application and associated safety guidelines. This SOP must be written and available to all operators
in a language they understand.
Intended Applications and Locations
TVO vacuum ovens are engineered for constant temperature drying, curing, and baking applications
under vacuum in professional, industrial, and educational environments. The ovens are not intended
for use at hazardous or household locations.
Power
Your unit and its recommended accessories are designed and tested to meet strict safety
requirements.
•The unit is designed to connect to a power source using the specific power cord type
shipped with the unit.
•Always plug the unit power cord into a protective earth grounded electrical outlet
conforming to national and local electrical codes. If the unit is not grounded properly, parts
such as knobs and controls can conduct electricity and cause serious injury.
•Do not bend the power cord excessively, step on it, or place heavy objects on it.
•A damaged cord can be a shock or fire hazard. Never use a power cord if it is damaged or
altered in any way.
•Use only approved accessories. Do not modify system components. Any alterations or
modifications to your unit not explicitly authorized by the manufacturer can be dangerous
and will void your warranty.

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INTRODUCTION
CONTACTING ASSISTANCE
Phone hours for Customer Support are 6 am – 4:30 pm Pacific Coast Time (west coast of the United
States, UTC -8), Monday – Friday. Please have the following information ready when calling or
emailing Customer Support: the model number, serial number,part number, and part ID (see page
20).
[e-mail]
1-888-835-9250
1-971-371-4096
FAX: [phone]
Manufacturing and Customer Support
Cascade TEK Solutions, LLC
PO Box 625
300 N 26th Ave
Cornelius, OR 97113
USA
MANUFACTURING WARRANTY
For information on your warranty and online warranty registration please visit:
https://www.cascadetek.com/warranty/
ENGINEERING IMPROVEMENTS
Cascade TEK continually improves all of its products. As a result, engineering changes and
improvements are made from time to time. Therefore, some changes, modifications, and
improvements may not be covered in this manual. If your unit’s operating characteristics or
appearance differs from those described in this manual, please contact your Cascade TEK dealer or
customer service representative for assistance.

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INTRODUCTION
VACUUM SUPPLY REQUIREMENTS
Pump or Building System Required
The oven does not come with a vacuum pump. A pump must be separately purchased for the oven.
Required Flow Rate
For the chamber to seal, the vacuum pump or system must be able to evacuate at least 1 cubic foot
per minute (cfm) for each cubic foot of oven chamber volume (CuFt).
Model Chamber Capacity Min. Pump Capacity CFM Min. Pump Capacity LPM
TVO-2-As 1.67 CuFt 2 cfm 57 Liters per Minute
TVO-5-As 4.50 CuFt 5 cfm 142 Liters per Minute
The use of clamps to secure vacuum tubing is recommended.
Minimum Evacuation Level
The oven must be evacuated to 500 torr or lower for the oven chamber door to seal. The manufacturer
recommends pumping down below 500 torr as part of the first step in a baking recipe to ensure a good
seal. This helps safeguard the oven and pump.
Pump Type Selection
Consult a vacuum pump specialist to determine the pump type best suited to your baking application. The
correct selection of a vacuum pump is critical for evacuating the chamber to the level required for your
vacuum baking applications in a timely manner. The nature of the sample or product being heated should
drive the selection of the pump, including the types of chemicals outgassed during the baking process.
Common pump types include Chemical Duty PTFE Dry, Standard Duty Dry, and Compact Direct-Drive. The
selection of an application-specific pump can improve the overall oven performance and minimize pump
maintenance costs. All maintenance and instructional information should be obtained from the pump
manufacturer if not shipped with the pump.
Oil Trap Recommended
The use of an oil trap plumbed on the vacuum line between the oven and the pump is strongly
recommended. The trap protects the pump from any oils outgassed during your baking procedure. This
extends the life of the pump.
Building Vacuum Supply
Vacuum Pump

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INTRODUCTION
COMPRESSED AIR SUPPLY REQUIRED
Compressed air provides the mechanical pressure needed to operate the automated vacuum and
backfill valves on the back of the oven. The oven chamber cannot be pumped down or auto
backfilled without a compressed air supply.
Use ¼ inch OD (outside dimension) tubing to connect the supply to the ¼ inch push fitting on the back,
right side of the oven, labeled Air 70 PSI.
The oven requires 70 psi of air pressure delivered at the fitting to function. Never exceed 80 psi.
Building
Pneumatic
Supply