Table of Contents
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ULTRA LOW TEMPERATURE FREEZER
This manual describes how to operate and care for your appliance to get the best, most efficient
performance.
Note to Customer:
This merchandise was carefully packed and thoroughly inspected before leaving our plant. Responsibility
for its safe delivery was assumed by the carrier upon acceptance of the shipment. As directed on the side
of your packing carton, claims for loss or damage sustained in transit must be made on the carrier as
follows:
A.) Visible Loss, Damage, Shortage External Evidence of Loss or Damage: This type of damage
must be noted on the freight bill and acknowledged by the carrier's agent (driver) at time of delivery.
Make sure you get a signed copy. Send a written request for an inspection to the carrier.
B.) Concealed Damage: This type of damage may not be discovered until the unit is being unpacked.
When concealed damage is discovered, stop unpacking immediately and contact the carrier
immediately to report the claim and request an inspection. This should be done as soon as possible
and, in any case, must be done within 15 days or receiving the merchandise. If at all possible, do not
move the item and save all packaging material for carrier's inspection.
C.) FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN THE CARRIER
REFUSING TO HONOR YOUR COMPANY'S CLAIM. UNDER NO CIRCUMSTANCES
SHOULD THE MERCHANDISE BE RETURNED TO THE MANUFACTURER. NO
RETURNS WILL BE ACCEPTED WITHOUT PRIOR AUTHORIZATION.
Part number 21729, Rev 4
OWNER'S INSTRUCTIONS
READ THIS BOOK!
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Table of Contents
Related Manuals for LabRepCo GM-ULT-1786
Summary of Contents for LabRepCo GM-ULT-1786
- Page 1 ULTRA LOW TEMPERATURE FREEZER OWNER’S INSTRUCTIONS This manual describes how to operate and care for your appliance to get the best, most efficient performance. READ THIS BOOK! Note to Customer: This merchandise was carefully packed and thoroughly inspected before leaving our plant. Responsibility for its safe delivery was assumed by the carrier upon acceptance of the shipment.
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Page 2: Table Of Contents
Table of contents Table of contents..............................1 Installation and start–up ............................ 3 Control overview ..............................4 Control operation ..............................5 Setting the time and date..........................5 Changing the Temperature Settings ....................... 5 Changing Alarm Settings ..........................5 Setting security access code (optional) ......................6 Control menus .............................. - Page 3 BEFORE CALLING MANUFACTURER’S TECHNICAL SERVICE DEPARTMENT, please have the unit’s model and serial number ready as well as the problem description. The model and serial number is located on the serial tag which can be found on the interior left OR right upper wall of the unit.
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Page 4: Installation And Start-Up
Power: The ULT requires a dedicated power outlet and circuit breaker: 20-amp circuit for 115V models and 15-amp circuit for 230V models. Installation and start–up NOTICE! READ THIS MANUAL It is necessary to read and understand this instruction manual because failure to do so may result in (1) substandard performance of your freezer, (2) damage to your freezer and stored items, and also (3) possible injury to operating personnel. -
Page 5: Control Overview
Control overview The SYSTEM NORMAL display is a monitoring and access screen from which you may enter any of the 4 control modes: CONFIGURE CALIBRATE SETTINGS The default setting will be sufficient for many hours while your freezer cools. You may familiarize yourself with the control by setting the time, the date, and perhaps setting an access code (numerical password). -
Page 6: Control Operation
Alarms: Your freezer is protected with 21 alarm monitors. In the event of an alarm, an ALARM MESSAGE will appear in the message line at the top of the screen and an alarm will sound. Consult the chapter on Alarms in this manual Control operation Setting the time and date. -
Page 7: Setting Security Access Code (Optional)
The alarms that may be set by the user are HIGH TEMP ALARM LOW TEMP ALARM Setting security access code (optional) When delivered, the freezer has the password security value in the CONFIGURE MENU: OFF setting. This means that access to modes and settings other than RUN can be addressed. - Page 8 3. Press BACK to return to the system level menu. Once you have activated PASSWRD SECURITY ON, the following window will appear when an operator requests access to any menu except the RUN menu: SECURITY ACCESS REQD ENTER ACC CODE ACC CODE= 0 0 0 0 PRESS ENTER FOR NEXT Changing the password...
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Page 9: Control Menus
Control menus Note that the RUN mode provides a “view only” menu in which you can verify settings. This is the normal mode of operation for the freezer. To make changes in the settings themselves, you must move to one of the other operation modes, CALIBRATE, CONFIGURE, or SETTINGS. Operating modes and mode menus System Normal... - Page 10 Configuration mode. The “Relay” column shows whether each alarm is of sufficient priority to warrant activating the remote alarm contacts. Note that the remote alarm contacts will always have a 30 minute delay to activate to allow time for on-site personnel to react to and resolve the alarm condition.
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Page 11: Alarm Criteria
Heat exchanger probe failure HS HX PROBE FAILURE Condenser probe failure COND PROBE FAILURE Ambient probe failure AMB PROBE FAILURE Sample probe failure (if installed) SAMP PROBE FAILURE Control Probe Unplugged CONT PROBE UNPLUGD Heat Exchanger Probe Unplugged HTEX PROBE UNPLUGD Condenser Probe Unplugged COND PROBE UNPLUGD Ambient Probe Unplugged... -
Page 12: Door Open
HIGH AMBIENT TEMP – Activates when the ambient temp probe reading is above 36 C. LOW BATTERY – Activates when the result of a battery test returns a reading of less than 11.0 VDC. H S SYSTEM FAILURE – Activates when the high stage heat exchanger probe is unable to reach at least -33 C after running the high stage compressor for 30 minutes. -
Page 13: Sensor Errors
Sensor Errors In addition to any alarms, the control will take the following action if it detects any of the unit’s sensors as being in error Alarm Result Control Probe failure Both compressors will turn on and remain on. Heat exchanger probe failure Compressor control during pull down will revert to timed staging Condenser probe failure... -
Page 14: Contacts And Communications
Contacts and communications ONLY Authorized, trained electricians should attempt any connection behind the service panels! Remote alarm contacts The Remote Alarm provides a NO (normally open) output, a NC (normally closed) output, and a Common. The Schematic below represents the alarm state and wire colors. The remote alarm terminal block is located in the base area of the unit, to the left of the electronic enclosure. -
Page 15: Maintenance Intervals
Using a 250 Ω resistor, the voltage drop across the resistor varies with temperature per the following equation. Temp (C) = - 34.75 (Vdrop) + 74.75 See the table below for representative readings. Voltage (V Chamber temperature ( 1.58 2.15 3.59 4.46 Maintenance intervals... -
Page 16: Annual Calibration
Annual calibration The control temperature probe should be calibrated once a year. This procedure is described in the Maintenance Procedures chapter under Calibration. Battery replacement Warning! Only authorized, trained electricians should attempt any access behind the service panels! The battery is located in the lower left-hand (handle side) corner of the compressor compartment. -
Page 17: Calibration
2. Empty the freezer of contents and transfer them to another freezer. Leave the inner doors open. 3. Place moisture absorbing material such as paper or cotton towels in the bottom of the freezer and on the floor in front of the freezer. 4. -
Page 18: Chart Recorder
Chart recorder. The 7-day chart recorder is added at the factory. See manufacturer’s owner’s manual. Chart recorder fuse The chart recorder fuse, 0.5 Amps, is located below the chart recorder power connection. Power switch 115V/230V power supply connection for optional chart recorder Chart Recorder Fuse Troubleshooting... -
Page 19: Specifications
Specifications GM-ULT-1786 GM-ULT-2186 Model Number GM-ULT-1786- GM-ULT-2586-230V GM-ULT-2186-230V 230V Temperature Range -50C to -86C Inventory capacity 20 racks 25 racks 30 racks Box capacity (2”/3”) 320 / 240 400 / 300 480 / 360 Dimensions exterior (HWD) inches 79.6 x 37.6 x 36.3 79.6 x43.3 x 36.3... -
Page 20: Statement Of Warranty
LabRepCo, LLC, you and any entity for which you are purchasing acknowledge and agree to each and every provision contained herein, and all other Notices and Terms provided to Purchaser by LabRepCo, LLC, which are hereby incorporated. - Page 21 ALTERATION, NEGLECT, ABUSE, MISUSE, ACCIDENT, DAMAGE DURING TRANSIT OR INSTALLATION, FIRE, FLOOD OR OTHER EXTERNAL CAUSES. LabRepCo, LLC is not responsible for the repair or replacement of any parts that LabRepCo, LLC determines have been subjected after the date of manufacture to alteration, neglect, abuse, misuse, accident, damage during transit or installation, fire, flood or other external causes.
- Page 22 Part number 21729, Rev 4...
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