LABORATORY
REFRIGERATORS AND FREEZERS
Installation, Operation and
Maintenance Instructions
INSPECTION
When the equipment is received, all items should be carefully checked against the bill of lading to insure all crates and cartons have been received. All units should be inspected for concealed damage by uncrating the units immediately. If any damage is found, it should be reported to the carrier at once, and a claim should be filed with the carrier. This equipment has been inspected and tested in the manufacturing facility and has been crated in accordance with transportation rules and guidelines. Manufacturer is not responsible for freight loss or damage.
INSTALLATION
GENERAL
After the unit crate and crate base have been removed, locate the casters or legs if applicable found inside the cabinet (casters may be pre-installed). Attach the casters or legs to the unit base by screwing them into the same threaded fittings that were used to secure the crate base to the cabinet. Insure that the legs or casters are screwed completely into the base.
For shipping purposes, the condensing unit compressor is secured on some of the Laboratory Freezer models. Remove the spring clips and loosen the mounting bolts prior to operation.
See the label attached to the condensing unit if applicable.
If for some reason the doors are not squared up on the cabinet, the doors can be adjusted. Opening the door(s) and loosening the screws that hold both the top and bottom hinges to the cabinet can accomplish this. After adjusting the door so that it is aligned correctly, tighten the screws to securely hold the hinges in place.
VAPORIZER INSTALLATION
The Extra Low Temperature Freezers require the installation of the condensate vaporizer, which is shipped inside the unit compartment. The vaporizer should be mounted to the cabinet bottom. Reference View 1. In lieu of the vaporizer, these units can be plumbed to a floor drain following local plumbing codes. For those models equipped with a hot gas vaporizer, field installation is not required.
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08/07 Rev. A 123952 |
Note: Disconnect power prior to installation.
1.Connect the power cord to the vaporizer and place it in the vaporizer bracket.
2.Attach the vaporizer bracket to the back of the unit using the four screws as shown, making sure the plastic drain tube is in the vaporizer pan.
LOCATION
The refrigeration system located at the top of the cabinet requires free air access for proper operation. Allow a minimum four (4) inch clearance on the top, rear, and sides of the cabinet. The cabinet should also be leveled when it is placed in its permanent location. Refer to the serial tag for complete physical specifications.
View 1
ELECTRICAL
Check the proposed outlet to be used to insure that the voltage, phase, and current carrying capacity of the circuit from the electrical panel correspond to the requirements of the cabinet. NEVER use an extension cord to wire any unit. On permanently connected units, those not furnished with a plug-in service cord, all inter-wiring between the electrical panel and the unit must be done in accordance with the National Electric Code and all state and local codes. Refer to the serial tag for all pertinent electrical information.
Observe all Warning Labels. Disconnect power supply to eliminate injury from electrical shock or moving parts when servicing equipment.
GENERAL OPERATION
The laboratory refrigerators and freezers employ a unit cooler evaporator located inside the cabinet as the heat removing source. Through the refrigeration process, heat is captured in the evaporator, transferred to the condensing unit on top of the cabinet, and expelled to the surrounding outside air. It is extremely important to allow a four (4) inch clearance on the top, rear, and sides of the unit for the refrigeration process to function properly.
These refrigerators and freezers utilize a programmable controller to control the temperature and defrost settings. The controller, which is located on the facade of the unit, is factory set. Please see the default settings sheet and separate instructions that are included on the operation of this controller.
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08/07 Rev. A 123952 |
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