April '14

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P a i d a d v e r t i s e m e n t Research on Which Works Best Nordic researched the performance of both gases in a test room, with temperatures outside of the refrigerators ranging from 76 degrees Fahrenheit up to 107 degrees. At most outside temperature ranges, there was less than 1 degree of difference inside the refrigerator com- partment between a hydrogen and helium cooling unit. Nordic found that in the freezer compartment, helium actually outperformed hydrogen by several degrees in some cases. "Our sense is that the helium gas causes the ammonia to cool down quicker than the hydrogen gas," Hunter says. "I can tell based on my testing, it's colder in the freezer with the helium gas." Hunter acknowledges that some customers would rather buy a new refrigerator instead of repairing an older one, but service writers should consider several factors when helping customers decide what their needs are. He says a newer refrigerator, or one with an interior that has been well taken care of, is a perfect candidate for repair. Ultimately, repair saves the consumer money, while at the same time increases the shop's ultimate profit. Hunter believes it's a "win-win situation" for all involved. "A service center can both save their customer money and at the same time make more money themselves than they would selling a new replacement refrigerator," Hunter says. "The cooling unit as a repair part is significantly less than the cost of a new refrigerator. And the service center has the opportunity to reap higher labor rates for removing their customer's defective cooling unit and installing a new one. This is especially true for 'flat-rate' shops. In the end, the bill is still going to be significantly less than a new refrigerator but with higher profit." RVP_NORD_1404A.indd 2 3/19/14 3:50 PM

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