Cascade TEK TFO-1-2 User manual

FORCED AIR OVENS TFO-1-2 TFO-3-2 TFO-5-2
Installation and Operation Manual

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Depicted on front cover, left to right: TFO-1-2, TFO-3-2, TFO-5-2
The oven requires a 220 – 240 volt power supply outlet to plug into.
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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TFO Forced Air Ovens
220 – 240 Voltage
Part Number (Manual): 4861793
Revision: November 15, 2021
Cascade TEK Part ID Numbers:
Model Name TFO-1-2 TFO-3-2 TFO-5-2
Part ID CTF122-EA CTF322-EA CTF522-EA
Part ID designates the specific build type of the model.
Cascade TEK Solutions, LLC is an ISO 9001 certified manufacturer.
Safety Certifications
These units are CUE listed by TÜV SÜD as forced air 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.
The units have been tested to the following requirements:
CAN/CSA-22.2 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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TABLE OF CONTENTS
INTRODUCTION .................................................................................................................................................5
Read this Manual....................................................................................................................................................................5
Safety Considerations and Requirements ......................................................................................................................5
Contacting Assistance ..........................................................................................................................................................6
Manufacturing Warranty ......................................................................................................................................................6
Engineering Improvements..................................................................................................................................................6
RECEIVING YOUR UNIT..................................................................................................................................... 7
Inspect the Shipment............................................................................................................................................................. 7
Orientation Images ................................................................................................................................................................8
Recording Data Plate Information................................................................................................................................... 12
INSTALLATION ................................................................................................................................................. 13
Installation Procedure Checklist ...................................................................................................................................... 13
Required Ambient Conditions........................................................................................................................................... 14
Required Ventilation Clearances..................................................................................................................................... 14
Power Source Requirements ............................................................................................................................................ 15
Lifting and Handling ............................................................................................................................................................ 16
Leveling................................................................................................................................................................................... 16
Install the Oven ..................................................................................................................................................................... 16
Installation Cleaning............................................................................................................................................................ 16
Shelving Installation..............................................................................................................................................................17
Access Port Stopper .............................................................................................................................................................17
GRAPHIC SYMBOLS......................................................................................................................................... 19
CONTROL PANEL OVERVIEW ........................................................................................................................ 21
OPERATION ..................................................................................................................................................... 23
Operating Precautions....................................................................................................................................................... 23
Theory of Operations ......................................................................................................................................................... 24
Put the Oven into Operation ............................................................................................................................................ 26
Set the High Temperature Limit.......................................................................................................................................27
Setting the Constant Temperature Set Point .............................................................................................................. 28
Heating Profiles ................................................................................................................................................................... 28
High Temperature Limit Activated ................................................................................................................................. 29
Data Port and Data Jack................................................................................................................................................... 30
Change Unit of Measurement ......................................................................................................................................... 30
Auto Tuning............................................................................................................................................................................ 31
High Exterior Temperatures ............................................................................................................................................. 32
OPERATOR MAINTENANCE ...........................................................................................................................33
Cleaning................................................................................................................................................................................. 33
Gaskets and Chamber Integrity ...................................................................................................................................... 34
Electrical Components....................................................................................................................................................... 34
Diagnostics - Heating Issues............................................................................................................................................ 35
UNIT SPECIFICATIONS....................................................................................................................................43
Weight..................................................................................................................................................................................... 43
Dimensions............................................................................................................................................................................ 43
Capacity ................................................................................................................................................................................. 43
Shelf Capacity by Weight.................................................................................................................................................. 44
Temperature ......................................................................................................................................................................... 44
Air Flow Performance......................................................................................................................................................... 45
Power...................................................................................................................................................................................... 46
REPLACEMENT PART LIST..............................................................................................................................47

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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 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.
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
TFO forced-air ovens are engineered for constant temperature forced-air drying, curing, and baking
applications 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 oven can be dangerous and 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
12).
[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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RECEIVING YOUR UNIT
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 and a Programming
Guide.
6. Verify that the correct number of accessory items has been included.
7. Carefully check all packaging for accessory items before discarding.
Included accessory items
Model Shelves Shelf Clips Leveling Feet Power Cord US Power Cord EUR
TFO-1-2
2
8
4
1
1
TFO-3-2
2
8
4
1
1
TFO-5-2
2
24
4
1
1
Shelves
TFO-1-2 TFO-3-2 TFO-5-2
A high-temperature access port stopper ships installed in the port located on the back of the oven.

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Figure
1: TFO-5-2
RECEIVING
ORIENTATION IMAGES
Exhaust Port with Sliding Dampener
Main Temperature and High Limit Sensor Probes
Door Latch
Control Panel
Chamber Gasket
Access Port
Oven Chamber

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Figure
2: TFO-3-2
RECEIVING
Exhaust Port with Sliding
Dampener
Main Temperature and High Limit Sensor Probes
Door Latch
Control Panel
Access Port
Oven Chamber
Chamber Gasket

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Figure
3: TFO-1-2
RECEIVING
Door Latch
Control Panel
Access Port
Oven Chamber
Exhaust Port with Sliding Dampener
Chamber Gasket
Main Temperature and High Limit
Sensor Probes (Under Shelf)