Related Manuals for Thermo Scientific Jewett 430
Summary of Contents for Thermo Scientific Jewett 430
- Page 1 Jewett -30 C Laboratory ° Freezers V and W Installation and Operation November 2014 325099H16 Rev. A Visit us online to register your warranty www.thermoscientific.com/labwarranty...
- Page 2 IMPORTANT Read this instruction manual. Failure to follow the instructions in this manual can result in damage to the unit, injury to opertaing personnel, and poor equipment performance. CAUTION All internal adjustments and maintenance must be performed by qualified service personnel. Material in this manual is for informational purposes only.
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Page 3: Table Of Contents
Table of Contents Table of Contents Introduction ................1 Specifications ................2 Intended Use................2 Safety Precautions..............3 Unpacking ................4 Temperature Monitoring............4 Installation ................5 Location...................5 Leveling ...................5 Wiring ..................5 Drawers..................5 Door Seal .................6 Solid Doors................6 Final Checks ................6 Control Panel ................7 Control Panel Features.............7 Display Functions ..............9 Programming Functions............10 Service Parameters..............11... -
Page 4: Introduction
Introduction 1 Introduction This manual provides installation and operation instructions for laboratory freezers with preset temperature setpoints of -30ºC. The control system, standard on all models, includes: • Key-operated power and alarm switch • Preset temperature setpoint • Digital temperature display with 0.1C resolution •... -
Page 5: Specifications
Introduction 1.1 Specifications Environmental Operating Pollution Degree 2 Conditions Installation Category II Altitude 2000m MSL (mean sea level) Humidity max 80% - non-condensing Voltage Tolerance ±10% Ambient Temperature 15-32°C (59-90°F) Product Usage Indoor Use Only Power Requirements Model Number Voltage/Frequence/Phase Amperage Plug Type Power Module Plug... -
Page 6: Safety Precautions
• Do not modify system components, especially the controller. Use Thermo Scientific exact replacement equipment or parts. Before use, confirm that the product has not been altered in any way. • Your unit must be properly grounded in conformity with national and local electrical codes. -
Page 7: Unpacking
Unpacking 3 Unpacking At delivery, examine the exterior for physical damage while the carrier’s representative is present. If exterior damage is present, carefully unpack and inspect the unit and all accessories for damage. If there is no exterior damage, unpack and inspect the equipment within five days of delivery. -
Page 8: Installation
Installation 5 Installation CAUTION : Improper operation of the equipment could result in dangerous conditions. Follow all instructions and operate within design limits noted on the dataplate. 5.1 Location Install the unit in a level area free from vibration with a minimum of 6 inches of space on the sides and rear and 12 inches at the top. -
Page 9: Door Seal
Installation 5.5 Door Seal Door seal integrity is critical for freezers. A loose fitting gasket allows moist air to be drawn into the cabinet, resulting in quicker frost buildup on the evaporator coil, longer running time, poor temperature maintenance, and increased operation cost. - Page 10 WARNING: SAFETY INSTRUCTIONS • REFRIGERATOR/FREEZER MUST BE SECURED BY THE ANTI-TIP BRACKET SUPPLIED • UNLESS PROPERLY INSTALLED, REFRIGERATOR/FREEZER COULD TIP WHEN SHELVES/ DRAWERS ARE LOADED. INJURY AND DAMAGE TO EQUIPMENT CONTENTS MAY RESULT FROM REFRIGERATOR/ FREEZER TIPPING • THIS REFRIGERATOR/FREEZER HAS BEEN DESIGNED TO MEET ALL RECOGNIZED INDUSTRY TIP STANDARDS FOR ALL NORMAL CONDITIONS.
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Page 11: Control Panel
Control Panel 6 Control Panel Figure 1. Laboratory Freezer Control Panel 6.1 Control Panel The control panel is located on the top right side of your freezer. You can Features use the three pushbuttons (#5, #8, and #9 in Figure 1) to change the temperature display (#1) or to adjust temperature and alarm setpoints. - Page 12 Control Panel Table 1. Thermometer display on control panel (setpoint -30ºC) Bars displayed Temperat Bars displayed Temperature bulb only -34ºC 6 bars -28ºC (cold alarm) 1 bar 7 bars 2 bars 8 bars -26 (warm alarm) 3 bars 9 bars 4 bars 10 bars (setpoint)
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Page 13: Display Functions
Control Panel 6.2 Display Functions Function Meaning Sequence Display Normal Default display while — Temperature display and control panel operation freezer is running thermometer icon show cabinet temperature. Cold excursion Show coldest cabinet Press Display shows coldest logged temperature temperature since last while button is pressed. -
Page 14: Programming Functions
Control Panel 6.3 Programming You can enter programming mode by pressing and holding for 5 seconds. Functions Pressing repeatedly scrolls through the available setpoint functions: cold alarm and warm alarm. Function Programming Sequence Adjust temperature Enter programming mode by pressing and holding for 5 seconds. -
Page 15: Service Parameters
Control Panel 6.4 Service Parameters You can access service parameters by entering programming mode with the controller key in the Power On position, then pressing for an additional 5 seconds. On release of the button, the display will go blank, then display “SEr”... -
Page 16: Operation
Operation 7 Operation 7.1 Temperature Settings The factory default temperature setting is -30 C for automatic defrost freezers. To change the factory temperature settings, refer to the instructions in Section 6.3. 7.2 Start Up To start up the freezer, complete the following steps: 1. -
Page 17: Defrost
Defrost 8 Defrost 8.1 Automatic Defrost The defrosting process on all -30 C freezers initiates automatically in response to a built-in timer. All models are set for one defrost cycle every six hours. The defrost cycle is 20 minutes. The cycle terminates automatically if during defrost the evaporator coil temperature exceeds 15ºC. -
Page 18: Alarm Systems
Alarm Systems 9 Alarm Systems 9.1 Operating the Alarm The alarm system is designed to provide visual and audible warning signals for both power failure and rise in temperature. The alarm is equipped with a battery backup. Default cold and warm alarm values are -40 ... -
Page 19: Installing A Remote Alarm (Optional)
Alarm Systems 9.3 Installing a Remote Remote alarm terminals are located at the rear of the machine compartment. Alarm (Optional) The terminals are: Common, Open on Fail (Normally Closed), and Close on Fail (Normally Open). 1. The remote alarm system has two keyhole slots on the back to hang the alarm system on the wall. - Page 20 Alarm Systems Alarm Test Procedure Note : This test automatically advances through all steps and stops. 1. Verify that the key position is in the Alarm On mode, and that the current warm and cold alarm setpoints are within normal ranges (the warm and cold simulations may not work if the setpoints are set to extreme values).
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Page 21: Chart Recorders
Chart Recorders 10 Chart Recorders Panel-mounted six inch recorders are standard and factory-installed on all models except for undercounter models, for which free-standing recorders are provided. Recorder operation begins when the system is powered on. 10.1 Set Up and To prepare the recorder to function properly, complete the following steps: Operation 1. -
Page 22: Changing Chart Paper
Chart Recorders CHANGE CHART Figure 3. Pressure Sensitive Chart Buttons 10.2 Changing Chart To change the chart paper, complete the following steps: Paper 1. Locate the pressure sensitive buttons at the front, upper left of the recorder panel. 2. Press and hold the change chart button (#3 on the upper left of the panel) for one second. -
Page 23: Calibration Adjustment
Chart Recorders 10.4 Calibration This recorder has been accurately calibrated at the factory and retains Adjustment calibration even during power interruptions. If required, however, adjustments can be made as follows: 1. Run the unit continuously at the control setpoint temperature. Continue steady operation for at least two hours to provide adequate time for recorder response. -
Page 24: Drawers
Drawers 11 Drawers 11.1 Removing the Drawers Larger models To remove the drawers in 23 ft and larger models, complete the following steps (refer to Figure 4): 1. Pull the drawer toward you until the slides are fully extended. 2. Lift the back of the drawer to disengage the mounting tabs from the slots on the slides. -
Page 25: Reinstalling The Drawers
Drawers 11.2 Reinstalling the To reinstall the drawers in 23 cu.ft. models and larger, complete the Drawers following steps (refer to Figure 4): 1. Pull both drawer slides toward you until the slides are fully extended. 2. Position the drawer between the slides and with the back facing end raised at a 45 degree angle, insert the front mounting clips into the slots on front of the slides. -
Page 26: Cleaning
Cleaning 12 Cleaning 12.1 Cleaning the To clean the drawers, use a solution of water and a mild detergent. Rinse the Drawers drawers and wipe them dry with a soft cloth. For instructions on removing and reinstalling drawers, refer to Section 10. 12.2 Cleaning the Condenser CAUTION : Condensers should be cleaned at least every six months. -
Page 27: Troubleshooting
Troubleshooting 13 Troubleshooting WARNING : Troubleshooting procedures involve working with high voltages which can cause injury or death. Troubleshooting should only be performed by trained personnel. This section is a guide to troubleshooting equipment problems. Problem Cause Solution Unit does not Power supply Check that the cord is securely plugged in. -
Page 28: Warranty Statement
Your local Thermo Scientific Sales Office is ready to help with comprehensive site preparation information before your equipment arrives. Printed instruction manuals carefully detail equipment installation, operation, and preventive maintenance. - Page 29 Your local Thermo Scientific Sales Office is ready to help with comprehensive site preparation information before your equipment arrives. Printed instruction manuals carefully detail equipment installation, operation, and preventive maintenance.
- Page 30 Thermo Fisher Scientific Inc. 275 Aiken Road Asheville, NC 28804 United States www.thermofisher.com 325099H16 Rev.A...