Cascade Sciences CVO-5 User manual

Vacuum Purge Ovens
Installation - Operation Manual
CVO-5 CVO-5-2 CVO-10

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Vacuum Purge Ovens
CVO-5: 110 – 120 Voltage
CVO-5-2, CVO-10: 220 – 240 Voltage
Part Number (Manual): 4861790
Revision: August 23, 2018
The CVO-5 requires a standard 110 – 120-volt power supply outlet to plug into (NEMA 5-15).
The CVO5-2 and CVO-10 require a 220 – 240-volt power supply outlet to plug into (NEMA 6-15R).

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TABLE OF CONTENTS
CERTIFICATIONS ...................................................................................................................................................... 5
UNIT SPECIFICATIONS .............................................................................................................................................7
Temperature ............................................................................................................................................................................ 7
Power.........................................................................................................................................................................................7
Weight........................................................................................................................................................................................8
Dimensions...............................................................................................................................................................................8
Capacity ....................................................................................................................................................................................9
Shelf Capacity by Weight.....................................................................................................................................................9
INTRODUCTION ........................................................................................................................................................11
Read this Manual................................................................................................................................................................... 11
Contacting Assistance ......................................................................................................................................................... 11
Engineering Improvements................................................................................................................................................. 11
Vacuum Supply Required .................................................................................................................................................. 12
Gaskets ................................................................................................................................................................................... 12
RECEIVING YOUR OVEN ........................................................................................................................................13
Inspect the Shipment........................................................................................................................................................... 13
Orientation.............................................................................................................................................................................. 14
Record the Data Plate Information...................................................................................................................................17
INSTALLATION .........................................................................................................................................................19
Installation Procedure Checklist ...................................................................................................................................... 19
Required Ambient Conditions.......................................................................................................................................... 20
Required Clearances.......................................................................................................................................................... 20
Power Source Requirements ............................................................................................................................................ 21
General Power Safety ........................................................................................................................................................ 22
Lifting and Handling ........................................................................................................................................................... 22
Leveling.................................................................................................................................................................................. 23
Install the Oven .................................................................................................................................................................... 23
Installation Cleaning........................................................................................................................................................... 23
Shelving Installation............................................................................................................................................................ 24
Connect to the Vacuum Supply ...................................................................................................................................... 25
Connect to a Gas Backfill Supply ....................................................................................................................................27
GRAPHIC SYMBOLS ............................................................................................................................................... 29
CONTROL OVERVIEW .............................................................................................................................................31
OPERATION.............................................................................................................................................................. 35
Safety Guidelines ................................................................................................................................................................ 35
Operating Precautions....................................................................................................................................................... 36
Theory of Operation ............................................................................................................................................................37
Put the Oven into Operation ............................................................................................................................................ 39
Evacuating and Backfilling the Oven Chamber ......................................................................................................... 40
Set the Temperature Setpoint .......................................................................................................................................... 41
Heat the Oven...................................................................................................................................................................... 42
Flashing Temperature........................................................................................................................................................ 43
Auto Heating Pause ........................................................................................................................................................... 43
Data Port................................................................................................................................................................................ 43
Changing the Oven Settings............................................................................................................................................ 44
USER MAINTENANCE............................................................................................................................................. 45
Cleaning and Disinfecting................................................................................................................................................. 45
Maintaining Atmospheric Integrity ................................................................................................................................. 46
Gaskets .................................................................................................................................................................................. 46
Electrical Components....................................................................................................................................................... 46
Vacuum Pump Maintenance.............................................................................................................................................47
Calibrate the Temperature display................................................................................................................................ 48

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REPLACEMENT PARTS .......................................................................................................................................... 53

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CERTIFICATIONS
This certificate satisfies NRTL safety requirements
TÜV SÜD CUE
Certificate Number: U8 17 04 64872 077
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 + U2:2016-04
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 standard following DIN 12880 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
Model Range Uniformity Stability
CVO-5 Ambient +26°to 250°F +1.5°@ 105°F ± 0.4° @105°F
CVO-5-2 Ambient +26°to 250°F +1.5°@ 105°F ± 0.4° @105°F
CVO-10 Ambient +26°to 250°F +1.5°@ 105°F ± 0.4° @105°F
Model Heat Up Time to 105°F
CVO-5 120 minutes
CVO-5-2 120 minutes
CVO-10 120 minutes
POWER
Model AC Voltage Amperage Frequency Phase
CVO-5 110 – 120 14 50/60 Hz 1
CVO-5-2 220 – 240 7 50/60 Hz 1
CVO-10 220 – 240 10 50/60 Hz 1

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UNIT SPECIFICATIONS
WEIGHT
Model Shipping Net Weight
CVO-5 449 lb / 203. 7kg 360 lb / 163.3 kg
CVO-5-2 449 lb / 203.7 kg 360 lb / 163.3 kg
CVO-10 775 lb / 352 kg 663 lb / 301 kg
DIMENSIONS
Inches
Model Exterior W × D × H Interior W × D × H
CVO-5 26.5 x 34.5 x 32.3 in 18.0 x 24.0 x 18.0 in
CVO-5-2 26.5 x 34.5 x 32.3 in 18.0 x 24.0 x 18.0 in
CVO-10 44.0 x 42.0 x 40.0 in 28.0 x 24.0 x 24.0 in
Millimeters
Model Exterior W × D × H Interior W × D × H
CVO-5 673 x 876 x 819 mm 457 x 609 x 457 mm
CVO-5-2 673 x 876 x 819 mm 457 x 609 x 457 mm
CVO-10 1118 x 1067 x 1016 mm 711 x 609 x 609 mm

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UNIT SPECIFICATIONS
CAPACITY
Model Cubic Feet Liters
CVO-5 4.5 127.4
CVO-5-2 4.5 127.4
CVO-10 9.3 264.0
SHELF CAPACITY BY WEIGHT
Model Per Shelf Total
CVO-5 50.0 lb / 22.6 kg 225.0 lb / 102.0 kg
CVO-5-2 50.0 lb / 22.6 kg 225.0 lb / 102.0 kg
CVO-10 50.0 lb / 22.6 kg 225.0 lb / 102.0 kg

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UNIT 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
Phone hours for Technical Support are 6 am – 4:30 pm Pacific Coast Time (west coast of the United States,
UTC -8), Monday through Friday. Please have the following information ready when calling or emailing
Technical Support: the model number and the serial number (see page 17).
PHONE: [phone] or 503-847-9047
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
GASKETS
Gaskets are high-wear items, subject to compression forces, heat, and outgassed
byproducts. Keeping a spare gasket on hand during operations is strongly recommended.
Each CVO oven comes with a replaceable Buna silicon 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 221°F (105°C). It is
resistant to solvents but not acids.
Vacuum Pump
Building
Vacuum Supply

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RECEIVING YOUR OVEN
INSPECT THE SHIPMENT
•When an oven 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 oven, 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 oven.
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. Verify that the correct number of accessory items have been included.
6. The unit should come with an Installation and Operation Manual.
7. Carefully check all packaging for loose accessory items before discarding.
Included Accessory Items
CVO-5s
5 Shelves 20 Shelf Clips 4 Leveling Feet 1 Power Cord
CVO-10
9 Shelves 4 Leveling Feet 1 Power Cord Vacuum Connection Kit

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RECEIVING YOUR OVEN
ORIENTATION
Door Seal, Oven Chamber Door
Control Panel
Intake Vent Control (controls backfilling of external
atmosphere into the oven chamber)
Intake Vent Port ½-inch OD
Vacuum Pump Power Outle
t
Power Cord Inlet
KF-25 Vacuum Port
for sensor probes
KF-25 Vacuum Port
– connects to the
vacuum pump.
Temperature Probe
Over Temperature Protection
Chamber Door Latch
CVO-10

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RECEIVING YOUR OVEN
Control Panel
Intake Vent Control (controls backfilling
of external atmosphere into the oven
chamber)
Intake Vent Port ¼ inch
Vacuum Pump Power Outlet
Power Cord Inlet
Chamber Door Latch
CVO-5s
Vacuum Outlet Valve Control
Vacuum Port 3/8-inch OD
KF-25 Vacuum Port

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RECEIVING YOUR OVEN
Power Panels
Located on the back of each unit
The vacuum pump power outlet type varies by oven model.
Model Voltage Outlet Type Max. Amperage
CVO-5 110 – 120 NEMA 5-15R 8
CVO-5-2 220 – 240 NEMA 6-20R 4
CVO-10 220 – 240 NEMA 6-20R 4
Power Cord Inlet with fuse
Fuse Holder for Second Fuse
Fuse holders for the power outlet
Power outlet for vacuum pumps
USB Data Port
Intake Vent ½” OD – To the oven chamber
CVO-10
CVO-5s
USB Data Port
Vacuum Port – 3/8” OD
Chamber Intake
Vent ¼” OD
Power outlet for vacuum pumps.
Fuse holder(s) for the power outlet:
CVO-5 1 Fuse, CVO5-Xs 2 Fuses
Power Cord
Inlet with fuse
2
nd
Fuse Holder – CVO-5-2 only

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RECEIVING YOUR OVEN
RECORD THE DATA PLATE INFORMATION
The data plate contains the unit model number and serial number. Tech Support will need this
information during any support call. Record it below for future reference.
•The data plate is located on the lower left side of the oven near the back.
Model Number:
Serial Number:

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RECEIVING YOUR OVEN

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INSTALLATION
INSTALLATION PROCEDURE CHECKLIST
For installing the oven in a new workspace location.
Pre-Installation
Verify a vacuum supply source suitable for your application is available and
can be connected to the oven, page Error! Bookmark not defined..
•See page 25 for the oven gas and vacuum port locations.
Check that the required ambient condition for the unit are met, page 20
•Unit dimensions may be found on page 5
Check that a suitable power supply for the oven is present, page 21
Installing the Oven
Review the lifting and handling instructions, page 22
Install the leveling feet, page 23
Install the oven in its workspace location, page 23
Set up the Oven for use
Clean the oven chamber and shelving if needed, page 23
Install the shelving in the oven chamber, page 24
Connect the vacuum supply to the oven, pages 25 and 26
Optional: Connect the oven to a neutral purging gas. See page 27

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INSTALLATION
REQUIRED AMBIENT CONDITIONS
These units are built for use indoors at room temperatures between 15°C and 40°C (59°F and 104°F), at
no greater than 80% Relative Humidity (at 25°C / 77°F). Operating outside these conditions may
adversely affect the unit temperature performance.
When selecting a location to install the unit, consider all environmental conditions that can impact its
temperature performance. These include:
•Proximity to other ovens, autoclaves, and any device that produces significant radiant heat
•Heating and cooling vents or other sources of fast-moving air currents
•High-traffic areas
•Direct sunlight
REQUIRED CLEARANCES
All Ovens
These clearances are required to provide air flows for ventilation and cooling.
6 inches (152 mm) of clearance is required on the sides.
12 inches (305 mm) of headspace clearance is required between the top of the unit and any
overhead partitions.
Do not place objects on top of the oven.
A KF-25 vacuum port is located on the back of the oven for introducing vacuum-rated thermocouple
feedthroughs into the chamber or connecting to an external vacuum supply source. Leave sufficient
clearance for operators to safely access this port.
6” (152mm)
Door Swing
12” (305mm)
12” (305mm)
6” (152mm)
12” (305mm)
Vacuum Pump
Power Outlet