CO2 and LN2 Back-up Systems CO2 and LN2 Back-up SystemsLoss of power is no problem with New Brunswick back-up systems, which are designed to maintain the contents of your freezer at a preset temperature should a power outage arise. CO2 or LN2 is pulsed rather than continuously fed during operation to ensure a uniform distribution of the cooling effect and avoid excessive consumption of coolant. Brochure
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