LabRepCo GM-ULT-1786 Owner's Manual

Manual is about: ULTRA LOW TEMPERATURE FREEZER

Summary of GM-ULT-1786

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    Part number 21729, rev 4 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 ou...

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    1 part number 21729, rev 4 table of contents table of contents.................................................................................................................................................. 1 installation and start–up ..................................................................

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    2 part number 21729, rev 4 before calling the 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 ...

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    3 part number 21729, rev 4 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 placement clearance: the freezer must have a clearance of 5” in the rear and 6” on each side so that sufficien...

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    4 part number 21729, rev 4 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 run settings the default setting will be sufficient for many hours while your freezer cools. You may familiarize yourself w...

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    5 part number 21729, rev 4 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. ...

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    6 part number 21729, rev 4 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 off setting. This means that access to modes and settings other than run can be addressed. I...

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    7 part number 21729, rev 4 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: changing the password the password (access code) is only required when the secu...

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    8 part number 21729, rev 4 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 ...

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    9 part number 21729, rev 4 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...

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    10 part number 21729, rev 4 heat exchanger probe failure hs hx probe failure yes yes no condenser probe failure cond probe failure yes yes no ambient probe failure amb probe failure yes yes no sample probe failure (if installed) samp probe failure yes yes no control probe unplugged cont probe unplug...

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    11 part number 21729, rev 4 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 a...

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    12 part number 21729, rev 4 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 du...

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    13 part number 21729, rev 4 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 represe...

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    14 part number 21729, rev 4 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 dc ) chamber temperature ( 0 c) 1.58 20 2.15 0 3.59 -50 4.46 -80...

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    15 part number 21729, rev 4 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 ...

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    16 part number 21729, rev 4 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. Allow frost to melt and loosen....

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    17 part number 21729, rev 4 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. Troubleshooting for information in addition to that listed in ...

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    18 part number 21729, rev 4 specifications model number gm-ult-1786 gm-ult-1786- 230v gm-ult-2186 gm-ult-2186-230v gm-ult-2586-230v 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 ...

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    19 part number 21729, rev 4 statement of warranty labrepco, llc. Product warranty labrepco, llc warrants to the original purchaser every new labrepco, llc refrigerated unit, the cabinet and all parts thereof, to be free from defects in material or workmanship, when such unit is installed, used, and ...

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    20 part number 21729, rev 4 no consequential damages. Labrepco, llc is not responsible for economic loss; profit loss; or special, indirect or consequential damages, including without limitation, losses or damages arising from contents spoilage claims whether or not on account of refrigeration failu...

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    Part number 21729, rev 4.