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Laboratory Freezer Considerations
We offer a range of options in terms of dimensions, storage capacity and temperature control when it comes to our laboratory freezers. Here is an overview of what you should consider:
- Capacity: If you’re looking for a space-saving design, consider our smaller undercounter and countertop models, which have a capacity range of 1 cubic foot to 5.2 cubic feet. We also have units that can meet the ADA height requirements. If you need something bigger, we have a large selection of larger upright lab freezers range from 17 to 30 cubic feet.
- Location and placement: Our upright models help you maximize space in your lab. Our undercounter and countertop models can be a standalone or cabinetry kneewall installation.
- Temperature requirements: Each of our models has specific temperature controls, but most lab freezers have a range of -15°C to -25°C. A few units offer a range of -18°C to -40°C. Basic manual defrost freezers are intended for situations where precise temperature control and maintenance aren’t essential.
- Temperature monitoring and alerts: All models offer audio and visual alarms and an access port for temperature monitoring. Some options feature a microprocessor controller with a digital display.
- Shelving: Each lab freezer has multiple shelves, some of which are adjustable in certain models.
- Power supply: Our models have a voltage of 115V and come with a power cord. Hazardous models must be hardwired to conduit a power source.
- Security: All of our lab freezers include keyed door locks for security.
- Door options: The models are equipped with one solid swing door with hinges on the right side. Most of the units also feature leveling legs.
Contact us today to find out more information about our products or to get in touch with a sales representative.
Q: Can undercounter units have built-in cabinets installed around it?
A: There are two types of undercounter units: freestanding and built-in. Only built-in models can have cabinets built around it. A built-in (also called “front breathing” undercounters) are models where the hot compressor air vents out of front grills (just under the door). Freestanding models have this air vent out back.
Q: Can I install an independent temperature monitoring system?
A: All our lab freezers provide an access port for you to install your temperature probe into the freezer. To save money, a lot of customers use a low-cost residential freezer that does not have an access port for the temperature probe, which means they run the probe through the door gasket. The probe cord causes an air gap along the door gasket line. This allows warm room air to enter the freezer, which accelerates the frost buildup.
Q: What is the difference between manual defrost and auto-defrost?
A: The defrost cycle is the method in which the ice on the evaporator coils is removed. For vaccine freezers, there are two types of “defrost” freezers: manual and auto defrost.
Manual defrost freezers, as the name suggests, have to be manually defrosted by turning the freezer off or unplugging the unit. The key advantage is the absence of warm temperature spikes that are present with an auto defrost freezer.
Auto defrost freezers incorporate a timer and a heater attached to the evaporator coils to assist in the defrost cycle. When a defrost cycle starts the compressor is turned off and the heater turns on. The heater melts the ice that has collected on the evaporator coils. During the cycle the inside of the freezer will warm up. When the cycle ends, the heater is turned off and the compressor turns on. This cycle can happen several times during the day.
The clear advantage of an auto defrost freezer is the ease of maintenance and no need to remove your product from the freezer. The disadvantage is most vaccines are sensitive to this warmup, which could prove damaging.