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Forma Scientific, Inc.
Millcreek Road, P.O. Box 649
Marietta, Ohio 45750
U.S.A.
Telephone: (740) 373-4763
Telefax: (740) 373-4189
________________________________________
Models:
707, 771, 733 and 754
Non-CFC, Ultra-Low Temperature
Chest Freezers
3.0 and 6.7 cu. ft. capacity
Manual No. 7000707
Rev. 3
Read this Instruction Manual
Failure to read, understand and follow the instructions in this manual may result in
damage to the unit, injury to operating personnel and poor equipment performance.
CAUTION: All internal adjustments and maintenance must be performed
by qualified service personnel.
Refer to the serial tag on the
back cover of this manual
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Summary of Contents for Forma Scientific 707
- Page 1 Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone: (740) 373-4763 Telefax: (740) 373-4189 ________________________________________ Models: 707, 771, 733 and 754 Non-CFC, Ultra-Low Temperature Chest Freezers 3.0 and 6.7 cu. ft. capacity Manual No. 7000707 Rev. 3 Read this Instruction Manual Failure to read, understand and follow the instructions in this manual may result in damage to the unit, injury to operating personnel and poor equipment performance.
- Page 2 Forma Scientific, Inc. makes no representations or warranties with respect to this manual. In no event shall Forma Scientific, Inc. be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
- Page 3 Monday through Friday from 8:00 a.m. to 7:00 p.m. Eastern Time. Please contact us by telephone or fax. If you wish to write, our mailing address is: ThermoQuest Forma Scientific Division Millcreek Road, PO Box 649 Marietta, OH 45750 International customers please contact your local ThermoQuest, Forma Scientific Division distributor.
- Page 4 Forma® Model 700 Series _______________________________________________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.
- Page 5 Forma® Model 700 Series _______________________________________________Safety Equipment being maintained or serviced must be turned off and locked off to prevent possible injury. Risques potentiels liés à l’énergie. L’équipement en entretien ou en maintenance doit être éteint et mis sous clé pour éviter des blessures possibles. Geräte, an denen Wartungs- oder Servicearbeiten durchgeführt werden, müssen abgeschaltet und abgeschlossen werden, um Verletzungen zu vermeiden.
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Page 6: Table Of Contents
Forma® Model 700 Series _____________________________________________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 ............. 1-2 1.3 Environmental Conditions ..............1-5 1.4 Installing the Wall Bumpers ..............1-5 1.5 Location .................... - Page 7 Forma® Model 700 Series _____________________________________________Contents Section 4 - Routine Maintenance 4.1 Cleaning the Cabinet Exterior .............. 4-1 4.2 Cleaning the Air Filter................4-1 4.3 Cleaning the Condenser................ 4-1 4.4 Defrosting the Chamber................ 4-2 4.5 Cleaning the Lid Gasket ............... 4-2 4.6 Replacing the Battery ................
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Page 8: Forma® Model 700 Series
Forma® Model 700 Series ___________________________________Installation/Start-Up Section 1 - Installation and Start-Up 1.1 Unloading and Moving the Freezer To remove the freezer from the pallet, use the 7/16” wrench to remove all the bolts securing the shipping bracket to the pallet. Remove the shipping bracket. Remove the ramp boards from the pallet and place the slotted end over the ramp brackets on the pallet. -
Page 9: Getting To Know Your Freezer
Forma® Model 700 Series____________________________________Installation/Start-Up 1.2 Getting to Know Your Freezer LED display - Shows actual chamber temperature and indicates the control temperature set point when the Press-To-Set button is pressed. Condenser Hot indicator - Lights when the thermostat on the condenser reaches 40°C, indicating typically a dirty air filter, a clogged condenser, a fan... - Page 10 Forma® Model 700 Series____________________________________Installation/Start-Up Figure 1-2 Figure 1-3 3.0 cu. ft. Chest Freezer 6.7 cu. ft. Chest Freezer Figure 1-4 Chest Freezer Base, back view Figure 1-5 Chamber Probe Assembly Recorder Probe Performance Alarm Monitor and Temperature Probe Probe Cover...
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Page 11: Environmental Conditions
Forma® Model 700 Series____________________________________Installation/Start-Up 1.3 Environmental Conditions The ULT Freezers are designed to be electrically safe in the following environmental conditions: • Indoors • Altitude: Up to 2,000 meters • Temperature: 5°C to 43°C • Humidity: 80% RH at or below 31°C, decreasing linearly to 50% RH at 40°C •... -
Page 12: Location
Forma® Model 700 Series____________________________________Installation/Start-Up 1.5 Location Locate the freezer on a firm, level surface in an area with an ambient temperature between 18°C and 32°C. Provide ample room to reach the mains disconnect switch (power switch) located on the rear of the freezer. For proper ventilation and airflow, a minimum of 5"... -
Page 13: Remote Alarm Contacts
Forma® Model 700 Series____________________________________Installation/Start-Up 1.7 Remote Alarm Contacts Remote alarm contacts are located on the rear of the unit. See Figure 1-6 for pin description, shown in the alarm state. The Forma part number for the plug required is 195482. Figure 1-6 Maximum rating for this plug Remote Alarm Contact... -
Page 14: Attaching The Power Cord
• Check voltage rating on the serial tag of the unit and compare it with the outlet voltage. • With the power switch turned off, plug the line cord into the wall outlet. 1.12 Factory Settings • Control Temperature – 707 & 771: -80°C – 733 & 754: -75°C • Over Temperature Alarm: -65°C If you wish to change any of these settings, see the appropriate section(s) in Section 2. -
Page 15: Section 2 - Operation
3. Using the screwdriver, turn the SETscrew until the desired temperature is displayed. Clockwise lowers the temperature and counter clockwise raises the temperature. The approved operating temperature range for the 707 & 771 is -50°C to -86°C and the range for the 733 & 754 is –50°C to –77°C. -
Page 16: Alarms
Forma Model 700 Series____________________________________________Operation 5. If the unit alarms, slowly adjust R9 clockwise (warmer) until the alarm turns off. If the unit is not in alarm, slowly adjust R9 counterclockwise (colder) until the alarm turns on. 6. The alarm is now set for the desired temperature. Reinstall the box cover and secure with screws. -
Page 17: Silencing The Over Temperature Alarm
Forma Model 700 Series____________________________________________Operation 2.4 Silencing the Over Temperature Alarm • Move the switch from the NORMAL position to the STANDBY position. When the alarm condition has been corrected, the alarm will sound. The switch must then be returned to the NORMAL position to exit STANDBY mode. If the unit is left in the STANDBY mode, none of the alarms listed will sound, alarm lights only will turn on. -
Page 18: Section 3 - Calibration
Forma® Model 700 Series ______________________________________________Calibration Section 3 - Calibration Calibration must be performed when the unit is at operating temperature. Required equipment: Accurate low-temperature remote bulb thermometer or thermocouple of known accuracy. 3.1 Temperature Display Calibration Place a measuring device near the probe cover. -
Page 19: Optional Recorder Calibration
Forma® Model 700 Series ______________________________________________Calibration 3.2 Optional Recorder Calibration a. Changing the recorder range: The chart recorder contains eight temperature ranges and is factory-programmed for the freezer. 1. Press and hold button #3 for one second, then let the pen move off of the chart paper. -
Page 20: Calibrating The Chart Recorder
Release the button when the pen position matches the thermometer. 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 Forma Scientific. Refer to Parts List, Section 7. -
Page 21: Section 4 - Routine Maintenance
* Depending upon environmental conditions, the filter may need to be cleaned or replaced more frequently. If the filter becomes torn or excessively dirty, a replacement can be purchased from Forma Scientific. See the Parts List, Section 7, for filter part number. A filter kit (set of 5 filters) is also available. -
Page 22: Defrosting The Chamber
Forma Model 700 Series _____________________________________________Maintenance 4.4 Defrosting the Chamber 1. Remove all product and place it in another freezer. 2. Turn the unit off and disconnect it from the power source. 3. Turn the Alarm switch to STANDBY, or disconnect the battery. 4. -
Page 23: Preparing The Unit For Storage
Forma Model 700 Series _____________________________________________Maintenance 1. Use the power switch and disconnect the line cord from the receptacle to turn the unit off. 2. To gain access to the battery, remove the grill on the front of the freezer. The grill is attached to the freezer by friction plugs on each of the four corners and is readily pulled off. -
Page 24: Section 5 - Service
Forma® Model 700 Series ______________________________________________Service Section 5 - Service 4.1 Servicing the Refrigeration System Servicing must be only performed by service personnel qualified to repair cascade refrigeration systems. Always use standard safety practices when servicing any equipment. Before opening the refrigeration system, use the troubleshooting chart below to check out the electrical system. -
Page 25: Section 6 - Specifications
Forma® Model 700 Series _________________________________________Specifications Section 6 - Specifications 3.0 cu. ft. Chest Freezers Models 733 and 754 -50°C (-58°F) to –77°C (-106°F) Temperature Exterior Dimensions 28.5" W x 41.8" H x 28.8" F-B (72.4cm x 106.2cm x 73.2cm) Add 6.5" (16.5cm) to F-B for handle/wall spacer 18.5"... - Page 26 Sides: 5" (12.7 cm) Lid: 2" (5.08 cm) Sub Lid: 1" (2.54 cm) Electrical 707: 120 VAC, 1PH, 60 Hz, 14 FLA Operating Range: 108VAC - 130VAC 771: 230 VAC, 1 PH, 50 Hz, 8 FLA Operating Range: 208VAC - 240VAC...
- Page 27 Forma® Model 700 Series _______________________________________________Parts Section 7 - Parts List Models 733 and 754 (3.0 cu. ft. models) Stock # Description 191627 Temperature Control Board 195383 Thermostat 40°C 290165 Temperature Monitor Probe 400116 Battery, Dryseal pack 3.6V, AA 214006 Oil Separator 209003 Dryer 3/8 ODF 209006...
- Page 28 Low Stage Compressor with Zerol 150T, 230V, 1/3 HP (Model 771) 2990209 High Stage Compressor with Ester Oil, 230V, 1/3 HP (Model 771) 1203017 Low Stage Compressor with Zerol 150T, 120V, 1/3 HP (Model 707) 2203017 High Stage Compressor with Ester Oil, 120V, 1/3 HP (Model 707) 970023...
- Page 29 Forma® Model 700 Series _________________________________Refrigeration Drawings Section 8 - Refrigeration Drawings...
- Page 33 Forma® Model 700 Series ___________________________________Electrical Schematics Section 9 - Electrical Schematics...
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