Thermo Forma 916 Operating And Maintenance Manual

Ultra low temperature upright freezer

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Model:

916/917

Ultra Low Temperature

Upright Freezer

17 cu. ft. capacity

Operating and Maintenance Manual

Manual No. 7050916 Rev. 7

Table of Contents

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Summary of Contents for Thermo Forma 916

Page 1 Model: 916/917 Ultra Low Temperature Upright Freezer 17 cu. ft. capacity Operating and Maintenance Manual Manual No. 7050916 Rev. 7...
Page 2 Thermo Forma makes no representations or warranties with respect to this manual. In no event shall Thermo Forma be held liable for any damages, direct or inciden- tal, arising out of or related to the use of this manual.
Page 3 Model 916/917_________________________________________________________________________________Service...
Page 4 Model 916/917__________________________________________________________________________________Safety General Safety Notes used in this Manual Important operating and/or maintenance instructions. Read the accompanying text carefully. Ce symbole attire l'attention de l'utilisateur sur des instructions importantes de fonctionnement et/ou d'entretien. Il peut être utilisé seul ou avec d'autres symboles de sécurité. Lire attentivement le texte d'accompagnement.
Page 5: Table Of Contents
Model 916/917_________________________________________________________________________Table of Contents Table of Contents Section 1 - Installation and Start-Up 1.1 Unloading and Moving the Freezer ....1-1 1.2 Getting to Know Your Freezer .....1-1 1.3 Environmental Conditions .
Page 6: Section 1 - Installation And Start-Up
Model 916/917______________________________________________________________________________Installation Section 1 - Installation and Start-Up The freezer can be easily pushed to the desired approved location, described in Section 1.6. If necessary, the 1.1 Unloading and Moving the Freezer doorstop may be removed to allow the door to swing fully open to move the unit through tight openings.
Page 7 Model 916/917_____________________________________________________________________________Installation Figure 1-4, Vacuum Relief Port Figure 1-2 and Chamber Probe Freezer Exterior, front view Figure 1-3 Figure 1-5, Vacuum Relief Port and Chamber Freezer Base, rear view Probe Assembly (without cover)
Page 8: Environmental Conditions
Figure 1-6 for pin description, shown in the alarm state. The 380520 Neoprene Cap Cap Protector Thermo Forma part number for the plug required is 195482. Maximum rating for this plug is Install the bolts into the pre-tapped holes on the back of 1.0A @ 30VAC.
Page 9: Optional Temperature Recorder
Model 916/917_____________________________________________________________________________Installation 9-volt battery Program selection and calibration buttons Green LED Figure 1-8 Chart Recorder, detail view 1.9 Optional Temperature Recorder 1.12 Water-cooled Condenser a. Connecting recorder battery An accessory available for your freezer is the water-cooled condenser. Details for the use of this condenser follow: Open the glass door of the recorder and connect the 9- volt battery.
Page 10: Section 2 - Operation
Model 916/917___________________________________________________________________________Operation Section 2 - Operation 2.2 Changing the Over Temperature Alarm Set Point The following procedure sets the alarm for a precise 2.1 Changing the Control Temperature Set Point temperature during initial set up. If a precise temperature is not required, set R9 to the desired temperature.
Page 11: Alarms
Model 916/917_______________________________________________________________________________Operation 2.3 Alarms Alarm Description Visual Audible Cause Action Required Over Temperature Flashing (red) · Unit is above alarm setpoint · Check freezer operation. · Addition of excessive product load Condenser Hot On (red)* · Filter and/or condenser dirty.
Page 12: Section 3 - Calibration
NOTE: The felt-tip pen on the recorder requires periodic replacement. Usually the ink will appear to fade before replacement becomes necessary. Additional pen tips may be purchased from Thermo Forma. Refer to Parts List, Section 7. Figure 3-1, Temperature Control Board, R-17 Location...
Page 13 SUVA Freezers Your Thermo Forma equipment has been thoroughly tested and calibrated before shipment. Regular preventive maintenance is important to keep your unit functioning properly. The operator should perform routine cleaning and maintenance on a regular basis. For maximum performance and efficiency, it is recommended that the unit be checked and calibrated periodically by a qualified service technician.
Page 14 Model 916/917_____________________________________________________________________________________________________Preventive Maintenance Preventive Maintenance for 900 Series Freezers Refer to Manual Section Action Monthly Yearly Every 2 Years Verify ambient temperature, <90°F * Adjust door handle for firm latching, as needed Figure 1-4 probe location 4.5 Check and clean probe and cover, gaskets, hinges and doors of ice and snow.
Page 15: Section 4 - Routine Maintenance
Rinse thoroughly with clean water and dry Thermo Forma. See the exploded parts list, Section 7, for filter with a soft cloth. part number. A filter kit (set of 5) part number 195517 is also 8.
Page 16: Replacing The Battery
Thermo Forma. Refer to the parts list for stock Always use standard safety practices number and description of the replacement bat- when servicing the equipment.
Page 17: Troubleshooting Chart
Model 916/917_________________________________________________________________________________Service 5.2 Troubleshooting Chart Symptom Possible Cause No Temperature Display • Power line cord disconnected or not properly installed • External power circuit breaker tripped/open • Main power switch OFF • 24 volt transformer fuses open. • Too much warm product added Chamber Temperature Deviates from Set Point •...
Page 18: Section 6 - Specifications
120VAC, 1 PH, 60 Hz, 16 FLA Operating Range, 108VAC - 130VAC 230VAC, 1 PH, 50/60 Hz, 12.0 FLA Operating Range: 208VAC - 240VAC Breaker 916, 20 Amp, 120V Requirements 917, 15 Amp, 230V Automatic Voltage Low: Cut In: 110V...
Page 19 Thermo Forma - Representative Pulldown and Cycling Curve for 17 Ft. -86°C Freezers Sample Chart Time (5 minute intervals) 17ft3-86.xls 2/02...
Page 20 Model 916/917_____________________________________________________________________________Parts List...
Page 21 Model 916/917_____________________________________________________________________________Parts List...
Page 22 Model 916/917____________________________________________________________________________Parts List...
Page 25 Model 916/917_____________________________________________________________________________Parts List...
Page 26 Model 916/917_____________________________________________________________________________Parts List...
Page 30 Model 916/917___________________________________________________________________Electrical Schematics 9 - 1...
Page 31 Model 916/917___________________________________________________________________Electrical Schematics 9 - 2...
Page 32 Model 916/917___________________________________________________________________Electrical Schematics 9 - 3...
Page 33 Model 916/917__________________________________________________________________Electrical Schematics 9 - 4...
Page 34 Model 916/917__________________________________________________________________Electrical Schematics 9 - 5...
Page 35 Model 916/917__________________________________________________________________Electrical Schematics 9 - 6...
Page 36: Section 10 - Warranty
During the first year of the warranty period, component parts proven to be non-conforming in materials or workmanship will be repaired or replaced at Thermo Forma's expense, labor included. The 900 Series ULT Freezers include a second year warranty on the compressors, parts only, F.O.B. factory. The 8500 Series ULT Freezers include an additional four year war- ranty on the compressors, parts only, F.O.B.
Page 37 Replacement or repair of component parts or equipment under this warranty shall not extend the warranty to either the equipment or to the component part beyond the original one year warranty period. The Thermo Forma Service Department must give prior approval for the return of any components or equipment.
Page 38 Model 916/917_________________________________________________________________________Declaration of Conformity 10-3...
Page 39 Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone: (740) 373-4763 Telefax: (740) 373-4189...

This manual is also suitable for:

917