Page 1
Model 900 Series -86C Ultra Low Temperature Freezer Operating and Maintenance Manual 7030902 Rev. 5...
Page 2
25018/FR-2016 10/29/08 Removed reference to VRP tool FR-2004 8/27/08 Added 996, 997, and 998 models 7/8/08 Removed typographical errors in Specifications (lids, sub-lids instead of door insulation) ccs 1 24567/FR-2000,24605/ 4/24/08 Clarified chamber probe and thermocouple callouts, Important info above,...
Page 3
Material in this manual is for information purposes only. The contents and the product it describes are subject to change without notice. Thermo Scientific makes no representations or warranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
Page 4
This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Scientific has contracted with one or more recycling/disposal companies in each EU Member State European Country, and this product should be disposed of or recycled through them.
Page 5
We can also provide you with a quotation on our Extended Warranty for your Thermo Scientific products. Whatever Thermo Scientific products you need or use, we will be happy to discuss your applications. If you are experiencing technical problems, working together, we will help you locate the problem and, chances are, correct it yourself...over the telephone without a service...
Optional Back Up System Controls Temperature Recorder (Optional) Figure 1-1. Freezer Front View Components • Control panel - keypad, displays and indicators • BUS (Optional Back Up System) control panel • Optional temperature recorder or datalogger Thermo Scientific Model 900 Series...
Page 9
Power switch (mains disconnect) Shelf Bracket Optional Miscellaneous Accessories Probe Optional - Recorder Probe/Datalogger Probe Sealant Control RTD/Redundant Type T (Caution: This is a critical seal. Thermocouple Probe Seal must be maintained.) Figure 1-3. Chamber Probe(s) Model 900 Series Thermo Scientific Thermo Scientific...
Page 10
Freezer battery and optional BUS battery Figure 1-5. Battery(s) location and switch • Battery mounting bracket(s) • Battery power switch (freezer and BUS) • Freezer battery • Optional BUS battery • Freezer filter location Thermo Scientific Model 900 Series...
Silence - Silences the audible alarm. See Section 4 for alarm ringback times. • Alarm Panel - indicates the current alarm condition. • Up and Down Arrows - Increases or decreases values, toggles between choices. • Enter - Stores the value into memory Model 900 Series Thermo Scientific...
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. Thermo Scientific Model 900 Series...
Stored product should be protected by a redundant 24 hour/day monitoring system with alarm capability. An interconnect jack and thermocouple are installed for centralized monitoring, should on-board system fail. Figure 1-8. Remote Alarm Contacts Model 900 Series Thermo Scientific...
36 hours to charge at initial start-up. A “Low Battery” alarm may occur until the batteries are fully charged. Should a power failure occur during the initial start-up period, the electronics will have limited operation. Thermo Scientific Model 900 Series...
Note If the set point is changed and the low temperature and high temperature alarms are set 10° from the set point, the alarm set points will be adjusted automatically to maintain a distance of at least 10° from set point. Model 900 Series Thermo Scientific...
4. Press the Mode key until the Run indicator lights for Run mode If no control keys are pressed, the freezer will automatically return to RUN mode after 5 minutes. Note The low alarm set point must be set at least 5°C from the control set point. Thermo Scientific Model 900 Series...
In addition, the Run mode allows display of the high stage heat exchange temperature. This information scrolls by pressing the up or down arrow keys. The display returns to the operating temperature in 10 seconds if no keys are pressed. 1-10 Model 900 Series Thermo Scientific...
During calibration, the temperature display will not be available. If no keys are pressed for approximately five minutes while in calibration mode, the system will reset to Run mode. Thermo Scientific Model 900 Series...
( ) prior to applying power to the freezer. The audible and visual alarms will remain until the freezer is connected to the correct power source. The audible alarm cannot be silenced under this condition. Thermo Scientific Model 900 Series...
Lost Communication Communication between the micro board and the display board has been lost. Under this condition, the visual alarm flashes along with dashes in the Alarm ( ---- ) temperature display (----). Contact Technical Services. Model 900 Series Thermo Scientific...
1. Open the front lower door by grasping the bottom left corner. 2. Using a vacuum cleaner, exercising care to not damage the condenser fins, clean the condenser. Depending upon environmental conditions, the condenser may need to be cleaned more frequently. Thermo Scientific Model 900 Series...
8. Add and circulate a passivating liquid for corrosion inhibition of plate surfaces. 9. Drain this liquid. 10. Rinse with fresh water and drain. 11. Reconnect the water supply and fill the unit. 12. Return to service. Model 900 Series Thermo Scientific...
The unit is designed with a “vacuum relief port” that allows the pressure to be equalized. Thermo Scientific Model 900 Series...
Page 25
The vacuum relief port may need to be cleaned more often with frequent door openings and high humidity environments. ▲ Model 900 Series Thermo Scientific...
Note If the unit has been in service, turn it off and disconnect the power cord connector before proceeding with any maintenance. ▲ Battery power switch Thermocouple interconnect jack Battery mounting bracket Freezer battery and optional BUS battery Figure 4-6. Battery Power Switch Thermo Scientific Model 900 Series...
Locate the freezer away from drafts or heating/cooling vents • Keep the number of door openings to a minimum • Minimize the length of time door is open • Make sure door latches securely after opening Model 900 Series Thermo Scientific...
5. Remove the two Phillips head screws securing the metal bracket on the vent stack assembly. 6. Install the vent stack through the opening and secure it to the top of the freezer, using screws. Thermo Scientific 900 Series -86C ULT Freezer...
Page 29
Section 5 Factory Installed Options Install Vent Stack, Solenoid and Injection (continued) Figure 5-1. Injection Assembly Figure 5-2. Vent Stack Assembly Model 900 Series Model 900 Series Thermo Scientific...
Mount the bracket. Figure 5-4 shows the Back-Up probe mounted on the interior left side wall of the freezer. Figure 5-4. Mounted probe clip Thermo Scientific Model 900 Series...
(no injection occurs). This light stays on until the unit is below BUS setpoint. b. The Low Battery indicator may also illuminate. 5. Turn the battery switch to Standby mode ( ) to charge both batteries. Model 900 Series Thermo Scientific...
The solenoid engaged indicator should light. If the Low Battery indicator lights during the test, replace the BUS battery. Note Solenoid will not engage if door is open. Thermo Scientific Model 900 Series...
(See Section 1 - “Setting the High Temperature Alarm). If the back-up system is installed with CO , then -65°C is the coldest BUS set point that can be used (if the cabinet set point is -75°C or colder). Model 900 Series Thermo Scientific...
3. Slowly disconnect the fitting assembly from the supply (in the event that any gas remains in the line). The following section describes the set up and operation of the optional Chart Recorder chart recorder. Figure 5-7. Recorder Details Thermo Scientific Model 900 Series...
Note The felt-tip pen on the recorder requires periodic replacement. The ink will appear to fade before replacement becomes necessary. Additional pen tips may be purchased from Thermo. ▲ Model 900 Series Thermo Scientific...
The five inner door option (P/N 189405 [13 cu ft], 189406 [17 cu ft], 189407 [23 cu ft], 195652 [28 cu ft]) is factory installed. The freezer is Option converted to accommodate four adjustable specimen shelves with the fifth “shelf ” as the bottom of the freezer chamber. Thermo Scientific Model 900 Series...
Page 39
Non CFC, foamed-in-place urethane: 5.0" (12.7cm) cabinet; 4.5” (11.4 cm) Insulation door 230VAC, 50/60 Hz, 12.0 FLA Electrical Operating Range: 208VAC-240VAC 15 Amp, 230VAC, Dedicated Circuit, Breaker Requirements 15 Amp Time Delay Breaker Shipping Weight 980 lbs. (444.5 kg) 900 Series -86C ULT Freezer Thermo Scientific...
Page 40
20 Amp Time Delay Breaker 15 Amp Time Delay Breaker Shipping Weight 900 lbs. (408.2 kg) Model 991 and 996 Temperature Range -50°C(-58°F) to -86°C(-123°F) in an 18C to 32C * (64.4F to 89.6F) ambient 33.3”W x 77.8” H x 31.0” F-B Exterior Dimensions (84.6cm x 197.6cm x 78.7cm)
Page 41
Pollution degree describes the amount of conductive pollution present in the operating environment. Pollution degree 2 assumes that normally only non-conductive pollution such as dust occurs with the exception of occasional conductivity caused by condensation. Model 900 Series Thermo Scientific...
Page 42
Section 7 Parts Thermo Scientific Model 900 Series...
Page 43
Section 7 Parts Assembly Drawing Model: 8600 Series Cabinet Assembly 8602-200-1-B Rev. 4 Page 1 of 2 Model 900 Series Thermo Scientific...
Page 44
Section 7 Parts Assembly Drawing Model: 8600 Series Cabinet Assembly 8602-200-1-B Rev. 4 Page 2 of 2 Thermo Scientific Model 900 Series...
Page 45
Section 7 Parts Model 900 Series Thermo Scientific...
Page 46
Section 7 Parts Thermo Scientific Model 900 Series...
Page 47
Section 7 Parts Part Number Upright Freezer 900 Series Single Door Quantity 902-201-1-B Rev. 3 Page 1 of 2 Model 900 Series Thermo Scientific...
Page 48
Section 7 Parts Upright Freezer 900 Series Single Door 902-201-1-B Rev. 3 Page 2 of 2 Thermo Scientific Model 900 Series...
Page 49
Section 7 Parts Model 900 Series Thermo Scientific...
Page 50
Section 7 Parts Thermo Scientific Model 900 Series...
Page 51
Section 7 Parts 7-10 Model 900 Series Thermo Scientific...
Page 52
Section 7 Parts Thermo Scientific Model 900 Series 7-11...
Page 53
Section 7 Parts 7-12 Model 900 Series Thermo Scientific...
Page 54
Section 7 Parts Thermo Scientific Model 900 Series 7-13...
Page 55
Section 7 Parts 7-14 Model 900 Series Thermo Scientific...
Page 56
Section 7 Parts Thermo Scientific Model 900 Series 7-15...
When handling liquid in open containers, it is advisable to wear high-top shoes. Trousers (which should be cuffless if possible) should be worn outside the shoes. Thermo Scientific Model 900 Series A -1...
Page 77
Use only the loose- fitting necktube core supplied or one of the approved accessories for closing the necktube. Check the unit periodically to be sure that venting is not restricted by accumulated ice or frost. A -2 Model 900 Series Thermo Scientific...
Page 78
Disposal of liquid nitrogen should be done outdoors in a safe place. Pour the liquid slowly on gravel or bare earth where it can evaporate without causing damage. Do not pour the liquid on pavement. Thermo Scientific Model 900 Series A -3...
Disposal of liquid CO should be done outdoors in a safe place. Pour the liquid slowly on gravel or bare earth where it can evaporate without causing damage. Do not pour the liquid on pavement. Thermo Scientific Model 900 Series B - 1...
108° F. Under no circumstance should the water be over 112° F, nor should the frozen part be rubbed either before or after rewarming. The patient should neither smoke nor drink alcohol. Thermo Scientific Model 900 Series C - 1...
Page 86
Thermo Scientific Controlled Environment Equipment 401 Millcreek Road Marietta, Ohio 45750 United States www.thermofisher.com...