Cascade Sciences CVO-2 User manual

Installation - Operation Manual
CVO-2
Benchtop Vacuum Ovens

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The CVO-2 requires a standard 110 – 120-volt power supply outlet to plug into (NEMA 5-15R).
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

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Benchtop Vacuum Ovens
110 – 120 Voltage
Part Number (Manual): 4861832
Revision: July 15, 2019

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TABLE OF CONTENTS
CERTIFICATIONS .......................................................................................................................................................7
UNIT SPECIFICATIONS ............................................................................................................................................ 9
Temperature Performance ..................................................................................................................................................9
Power....................................................................................................................................................................................... 10
Vacuum ................................................................................................................................................................................... 10
Weight...................................................................................................................................................................................... 10
Dimensions............................................................................................................................................................................. 10
Capacity .................................................................................................................................................................................. 10
Shelf Capacity by Weight.................................................................................................................................................... 11
INTRODUCTION .......................................................................................................................................................13
Read this Manual.................................................................................................................................................................. 13
Contacting Assistance ........................................................................................................................................................ 13
Engineering Improvements................................................................................................................................................ 13
Vacuum Supply Required .................................................................................................................................................. 14
Gaskets ................................................................................................................................................................................... 14
RECEIVING YOUR OVEN ........................................................................................................................................15
Inspect the Shipment........................................................................................................................................................... 15
Orientation.............................................................................................................................................................................. 16
Recording the Data Plate Information............................................................................................................................ 19
INSTALLATION .........................................................................................................................................................21
Installation Procedure Checklist ...................................................................................................................................... 21
Required Ambient Conditions.......................................................................................................................................... 22
Required Clearances.......................................................................................................................................................... 22
Power Source Requirements ........................................................................................................................................... 23
General Power Safety ........................................................................................................................................................ 24
Lifting and Handling ........................................................................................................................................................... 25
Leveling.................................................................................................................................................................................. 25
Install the Oven .................................................................................................................................................................... 26
Installation Cleaning........................................................................................................................................................... 26
Shelving Installation.............................................................................................................................................................27
Connect to the Vacuum Supply ...................................................................................................................................... 28
Connect to a Gas Backfill Supply ................................................................................................................................... 29
GRAPHIC SYMBOLS ................................................................................................................................................31
CONTROL OVERVIEW ............................................................................................................................................ 33
OPERATION.............................................................................................................................................................. 35
Safety Guidelines ................................................................................................................................................................ 35
Operating Precautions....................................................................................................................................................... 36
Theory of Operation ............................................................................................................................................................37
Put the Oven into Operation ............................................................................................................................................ 39
Put the Chamber Under Vacuum .................................................................................................................................... 41
Set the Temperature Setpoint ......................................................................................................................................... 42
Pausing Heating .................................................................................................................................................................. 43
Over Temperature Activation .......................................................................................................................................... 43
Vacuum Gauge Operations ............................................................................................................................................. 44
Maximum Obtainable Vacuum........................................................................................................................................ 45
Pressure Units Conversion Chart.................................................................................................................................... 45
Oven Cooldowns ................................................................................................................................................................. 46
USER MAINTENANCE............................................................................................................................................. 47
Cleaning and Disinfecting..................................................................................................................................................47
Maintaining Atmospheric Integrity ................................................................................................................................. 48
Gaskets .................................................................................................................................................................................. 48

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Electrical Components....................................................................................................................................................... 49
Vacuum Pump Maintenance............................................................................................................................................ 49
REPLACEMENT PARTS LIST...................................................................................................................................51

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TABLE OF CONTENTS

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CERTIFICATIONS
This certificate satisfies NRTL safety requirements
TÜV SÜD CUE
Certificate Number: U8 064872 0095
These units are CUE listed by TÜV SÜD as vacuum ovens for appropriate professional, industrial, or
educational use. TÜV SÜD America Inc. is an OSHA recognized NRTL and a Standards Council of
Canada accredited certification body.
The units have been tested to the following requirements:
CAN/CSA-C22.2 No. 61010-1:2012 + UPD N0. 1:2015-07 +
UPD No. 2:2016-04
CAN/CSA C22.2 No. 61010-2-010:2015
UL 61010-1:2012/R:2016-04
UL 61010-2-010:2015
EN 61010-1:2010
EN 61010-2-010:2014

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CERTIFICATIONS

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UNIT SPECIFICATIONS
Please refer to the oven data plate for individual electrical specifications.
Technical data specified applies to units with standard equipment at an ambient temperature of 25°C
±3° (77°F ±5.4°) and at nominal voltage. The temperatures specified are determined in accordance
with factory standards respecting the recommended wall clearances of 10% of the height, width, and
depth of the inner chamber. All indications are average values, typical for units produced in the
series. We reserve the right to alter technical specifications at all times.
TEMPERATURE PERFORMANCE
Operating Range
Fahrenheit Celsius
Ambient +18° to 300°F Ambient +10 to 150°C
Temperature Uniformity
@ 105°F @ 200°F @ 300°F
±1.0°F ±1.5°F ± 2.2°F
@ 40°C @ 90°C @ 150°C
±0.5°C ±0.8°C ± 1.2°C
Temperature Stability
@ 105°F @ 200°F @ 300°F
±1.0°F ±1.5°F ± 2.2°F
@ 40°C @ 90°C @ 150°C
±0.05°C ±0.04°C ± 0.2°C
Cooldown Times
Approximate times with the chamber under vacuum. Cool down rate will be influenced by ambient
conditions.
From 105°F From 200°F From 300°F
~255 minutes to 86°F ~595 minutes to 122°F ~595 minutes to 122°F
From 40°C From 90°C From 150°C
~255 minutes to 30°C ~595 minutes to 50°C ~595 minutes to 50°C

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SPECIFICATIONS
POWER
AC Voltage Amperage Frequency
110 – 120 8.0 50/60 Hz
VACUUM
Operational Vacuum Range
inHg mmHg kPa bar
-3.0 to -29.9 -76 to -760 -10 to -101 -0.1016 to -1.0125
Vacuum Display Range
inHg mmHg kPa bar
0.0 to -29.9 37.5 to - 757 5 to -101 0.05 to -1.013
WEIGHT
Shipping Weight Unit Weight
218 lb / 99 kg 179 lb / 81.2 kg
DIMENSIONS
Inches
Exterior W × D × H Interior W × D × H
20.5 x 28.8 x 24.9 in 12.0 x 20.0 x 12.0 in
Millimeters
Exterior W × D × H Interior W × D × H
521 x 732 x 633 304 x 508 x 304
CAPACITY
Cubic Feet Liters
1.67 47.2

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SPECIFICATIONS
SHELF CAPACITY BY WEIGHT
Per Shelf Total
35.0 lb / 15.8 kg 105.0 lb / 47.6 kg

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SPECIFICATIONS

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INTRODUCTION
READ THIS MANUAL
Failure to follow the guidelines and instructions in this user 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.
Intended Applications and Locations
CVO vacuum ovens are engineered for 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.
CONTACTING ASSISTANCE
Please have the following information ready when calling or emailing Technical Support: the model
number and the serial number (see page 19).
Phone: [phone]
Cascade Sciences
6725 NE Evergreen Pkwy
Ste 106
Hillsboro, OR 97124
ENGINEERING IMPROVEMENTS
Cascade Sciences 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 oven dealer or
customer service representative for assistance.

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INTRODUCTION
VACUUM SUPPLY REQUIRED
CVO ovens require a vacuum supply source, which must be purchased separately from
the oven. Please see the Cascade Sciences website for pumps and vacuum system
accessories suitable for your application.
cascadesciences.com/vacuum-pumps
Minimum Vacuum Draw
In order to seal completely, the oven chamber must be under a minimum vacuum draw of:
inHg mmHg kPa bar
-3.0 -76 -10 -0.1016
GASKETS
Each oven comes with a replaceable cured silicone gasket installed on the chamber liner.
This gasket seals against the chamber door to maintain the vacuum integrity of the chamber.
The gasket must be replaced periodically and is rated to 230°C. It is vulnerable to acids and
solvents. The gasket color may vary.
The chamber liner gasket is a non-warranty item subject to compression forces, heat, and
outgassed byproducts. Heavy usage rates may necessitate frequent replacements. The
manufacturer strongly recommends keeping at least one spare gasket on hand during
operation.
Vacuum Pump
Building
Vacuum Supply

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RECEIVING YOUR OVEN
INSPECT THE SHIPMENT
•When a unit leaves the factory, safe delivery becomes the responsibility of the carrier.
•Damage sustained during transit is not covered by the manufacturing defect warranty.
•Save the shipping carton until you are certain that the unit and its accessories function
properly.
When you receive your unit, inspect it for concealed loss or damage to its interior and exterior. If you
find any damage to the unit, follow the carrier’s procedure for claiming damage or loss.
1. Carefully inspect the shipping carton for damage.
2. Report any damage to the carrier service that delivered the unit.
3. If the carton is not damaged, open the carton and remove the contents.
4. Inspect the unit for signs of damage. See the orientation depiction on the next page as a
reference.
5. The unit should come with an Installation and Operation Manual.
6. Verify that the correct number of accessories has been included.
7. Carefully check all packaging for loose accessory items before discarding.
Included Accessory Items
Tall Shelves Medium Shelves Short Shelf w/ Clip
2 2 1
Power Cord,
CVO-2
Leveling Feet
1
4

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RECEIVING
ORIENTATION
Front
Control Panel
Intake Vent Control (allows external
atmosphere into the oven chamber)
Vacuum Valve
Control
Temperature
Sensor Probe
Chamber Liner Gasket
(color varies)
CVO-2

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RECEIVING
Back
Intake Vent Port ¼ inch OD
Power Cord Inlet
Vacuum Port 3/8 inch OD
KF-25 Vacuum Port

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RECEIVING
Power Panels
Located on the back of each unit.
Power Cord Inlet with fuse
Backfilling Intake Vent for the
oven chamber, ¼ in (6.35mm) OD
CVO-2
Data Plate
Vacuum Inlet 3/8in (9.52mm) OD –
Connects to the vacuum pump or supply

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RECEIVING
RECORDING THE DATA PLATE INFORMATION
Record the unit model number and serial number below for future reference.Tech Support needs
this information to provide accurate help during support calls and emails.
•The data plate is located on the lower left side of the oven, above the power cord inlet.
Data Plate Information
MODEL NO:
SERIAL NO:

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RECEIVING