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Thermo Scientific Manuals
Freezer
Forma FDE Series
Installation and operation manual
Thermo Scientific Forma FDE Series Installation And Operation Manual
Ultra-low temperature freezers
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Models
Safety Considerations
Unpacking
Packing List
General Recommendations
Temperature Monitoring
General Usage
Initial Loading
Battery Door Opening / Closing
Operating Standards
Electrical Specifications
Installation
Location
Leveling
Backup System (Optional)
Super Insulated Cabinet Construction
Door Operation
Pressure Equalization Port
Installing the Remote Alarm Connector
Intended Use
Operation
Initial Start up
Operation Overview
Display
Settings
Power down
Backup System (Optional)
CO2 and LN2 Precautions
Installation
Start up
Operation
Chart Recorders (Optional)
Set up and Operation
Changing Chart Paper
Calibration Adjustment
Maintenance
Cleaning the Condenser
Cleaning the Condenser Filter
Gasket Maintenance
Defrosting the Freezer
Battery Maintenance
Maintenance Schedule
Troubleshooting Guide
Error Codes
Warranty
Warranty (International)
Appendix A: Alarm Summary
Contact Information
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Models
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Temperature Monitoring
3
Display
4
Troubleshooting Guide
5
Error Codes
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Ultra-Low Temperature Freezers
Revco
TM
Series, HERAfreeze
Thermo Scientific
Installation and Operation
329712H02 • Revision A • March 2019
RDE Series, Forma
HDE Series and
TM
TDE Series
TM
FDE
TM
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Summarization of Contents
Models
Safety Considerations
Unpacking
Packing List
Details the items included in the freezer cabinet bag, such as keys, manuals, and connectors.
General Recommendations
Temperature Monitoring
Recommends using a redundant and independent system for continuous freezer performance monitoring.
General Usage
Guides on maintaining ultra-low temperatures and avoiding rapid freezing of large volumes.
Initial Loading
Procedure for loading the freezer, emphasizing gradual loading and recovery time for optimal performance.
Operating Standards
Electrical Specifications
Installation
Location
Guidance on selecting a suitable installation site, including space requirements and environmental conditions.
Leveling
Instructions on how to ensure the unit is level for proper operation and stability.
Wiring
Critical safety precautions regarding electrical connections, grounding, and power sources.
Door Operation
Details the features of the advanced door assembly for upright freezer models.
Opening the Door
Step-by-step instructions for safely opening the main freezer door.
Closing the Door
Procedure for correctly closing the freezer door, ensuring the latch engages properly.
Pressure Equalization Port
Explanation of the port's function to relieve vacuum and prevent door opening difficulties.
Installing the Remote Alarm Connector
Instructions and pin configuration for connecting a remote alarm system.
Intended Use
Defines the specific types of biological samples the freezers are designed to store and their medical device classification.
Operation
Initial Start Up
Step-by-step guide to powering on the freezer and initiating the startup procedure.
Operation Overview
Summary of actions required after initial startup, focusing on set points and backup systems.
Display
Description of the default screen layout and its various indicators.
Settings
Overview of available settings including temperature alarms, offsets, and security codes.
Control Setpoint
Procedure for modifying the main temperature setpoint of the freezer.
Other Setpoints and Settings
Details on navigating and adjusting various other operational parameters.
Setpoint Security
Instructions on how to set and manage the 3-digit security code for setpoint changes.
Warm Alarm Test
Procedure to test the warm alarm functionality by simulating a temperature increase.
Power Down
Backup System (Optional)
CO2 and LN2 Precautions
Essential safety warnings and guidelines for using liquid CO2 and LN2 backup systems.
Installation
Steps for installing the gas lines for CO2 or LN2 backup systems.
Operation
Information on backup system run time, consumption rates, and operational considerations.
Start Up
Procedure for setting up and configuring the backup system after initial freezer startup.
Test BUS Operation
Steps for testing the functionality of the backup system to ensure it operates correctly.
Chart Recorders (Optional)
Set Up and Operation
Instructions for preparing and operating the panel-mounted chart recorder.
Changing Chart Paper
Procedure for replacing the chart paper in the recorder.
Calibration Adjustment
Guidelines for recalibrating the chart recorder if adjustments are needed.
Maintenance
Cleaning the Condenser
Procedure for cleaning the condenser unit to maintain optimal performance.
Cleaning the Condenser Filter
Instructions for cleaning or replacing the condenser filters.
Gasket Maintenance
Guidance on checking and maintaining door gaskets for proper sealing.
Defrosting the Freezer
Steps to follow for manually defrosting the freezer to remove ice buildup.
Battery Maintenance
Information on monitoring battery status, replacement, and proper connection.
Battery Specification
Details the type and specifications of the rechargeable battery used in the unit.
Maintenance Schedule
A summary table outlining recommended maintenance tasks and their intervals.
Troubleshooting Guide
Unit warming
Troubleshooting steps for issues related to the unit warming or not reaching the set temperature.
Unit recovers slowly to set point
Solutions for when the unit takes a long time to return to the desired temperature.
User interface (Display) failure
Steps to resolve issues with the display or user interface.
Power failure to the unit
Troubleshooting steps for power interruptions or issues related to the power supply.
Unit tripping the circuit breaker
Causes and solutions for the unit repeatedly tripping the circuit breaker.
Excessive frost build-up around perimeter of door
Addressing frost accumulation on the outer door perimeter.
Unit is over cooling
Troubleshooting steps for when the unit cools below the set temperature.
Unit compressors run continuously
Identifying reasons and solutions for the compressors running constantly.
Cabinet temperature reached an alarm condition, but suitable alarm is not activated
Diagnosing issues where alarms are not triggered despite temperature deviations.
Problem with temperature validation/calibration
Understanding variations in temperature readings during validation or calibration.
Unit is constantly alarming
Resolving persistent alarming issues, including door seal and setpoint problems.
Unit cycle on-percentage is increasing (Compressors are running more often than before)
Investigating increased compressor run time due to ambient conditions or loading.
Difficult to close / open the outer door
Solutions for issues with opening or closing the outer freezer door, often related to ice buildup.
Outer door alignment issues
Addressing problems with the outer door's alignment and latching mechanism.
Difficult to close / open the inner door
Troubleshooting difficulties with opening or closing the inner freezer doors.
Vibration noise
Identifying and resolving sources of vibration noise, such as loose panels.
Rattling noise/ Loud noise
Diagnosing and fixing unusual rattling or loud noises from the unit.
Error Codes
Warranty
Warranty (International)
Appendix A: Alarm Summary
WEEE Compliance
Contact Information
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